6.4 tube well construction quality must attach great importance to the quality of tube wells. Should find a team of professionals construction, good every aspect of the process, built high-quality wells, in order to get a larger amount of water and quality water. A quality well can be used for more than 20 years. Well into the poor quality, not only affect the life of the well, but also affect the water and recharge effect, the final impact of the normal operation of water source heat pump and heating or cooling effect. Party A should participate in the final phase of the pumping test work, identify credible and accurate pumping test results data. After completion of the tube well, Party A, the construction unit and the administrative department or the Supervisory Commission to the scene, according to the contract the amount of water, water temperature and water quality for project quality inspection. Type Size Depth (m) Scope Water volume (m3 / d) Groundwater type Groundwater depth Aquifer thickness Hydrogeological characteristics Tube well diameter 50-1000mm150-600mm Well depth 20-1000m, commonly used within 300m Diving, confined water, fissure water , Cave water within 200m, commonly used within 70m or more than 5m or with aquifer applicable to any sand, pebbles, gravel and structural fractures, karst fracture zone single well 500-6000m3 / d, up to 2-3 million m3 / d large well diameter of 2-10m, commonly used 4-8m depth of well within 20m, commonly used 6-15m diving, pressure water is generally within 10m 5-15m sand, pebbles, gravel, the best permeability coefficient 20m / d single well water 500-10000 m3 / d, the maximum of 2-3 million m3 / d Radiation well wells diameter 4-6m, radiation tube diameter 50-300mm, commonly used 75-150mm well depth of 3-12m Submersible, confined water depth of 12m, radiant tube from the precipitation layer should be greater than 1m generally greater than 2m good supply of coarse sand, gravel layer, but can not contain gravel single well 5000-50000 m3 / d, a maximum of 3.1 Wan m3 / d Seepage Diameter of 450-1500mm, commonly used for 600-1000mm depth of 10m or less, With 4-6m diving, the water infiltration of the river bed generally buried depth of 8m generally 4-6m good supply of coarse sand, gravel, pebble layer is generally 10-30m3 / dm, a maximum of 50--100m3 / dm 7, water treatment And water-saving technology 7.1 Water Treatment Technology If the water quality of the water source is not suitable for the use of water source heat pump unit, you can take appropriate technical measures to carry out water quality treatment to meet the unit requirements. Water treatment systems commonly used in water systems are as follows: Desander and sedimentation tank When the water content in the sand is high, the cyclone desilter can be installed in the water source water piping system to reduce the sand content in the water Quantity, to avoid unit and valve suffered wear and blockage. Domestic swirl desander covers an area smaller, with different specifications, according to the standard flow rate matching desander models and the number of units. If the project site area larger, but also the construction of sedimentation tank sand removal. Sedimentation costs less than desander, but covers an area of ​​?? large. Water purification filter some of the water, turbidity greater, when used for recharge pipe easily lead to clogged aqueducts and aquifers, affecting the stability and service life of the water supply system. For turbid water, you can install a water purifier to filter. Electronic water treatment instrument in the water central air conditioning system operation process, the condenser in the circulating water temperature is high, especially in winter heating conditions, the water temperature is often above 50 ℃, calcium and magnesium ions in the water prone to scaling , Affect the heat transfer effect. Usually in the condenser circulating water pipe installation of electronic water treatment instrument to prevent pipe scaling. Some of the plate heat exchanger water salinity higher metal corrosive strong, such as direct access to the unit will be due to corrosion to reduce unit life. If you reduce the degree of salinity by water treatment, costly. The heat exchanger is usually used to install the middle of the heat exchanger, the water source and unit isolated, so that the unit completely avoid the water source may have a corrosive effect. When the salinity of water source water is less than 350mg / L, the water source system can not add heat exchanger, using direct supply connection. When the source water salinity 350-500mg / L, you can install stainless steel plate heat exchanger. When the water salinity> 500mg / L, corrosion-resistant titanium plate heat exchangers should be installed. Volume-type heat exchanger can also be installed, the cost is less than the plate heat exchanger, but covers an area of ​​?? large. De-iron equipment water central air-conditioning system can also be used to supply domestic hot water. But sometimes the source of iron in the water more, although no effect on the heating, bathing on human health will not cause damage, but iron soluble in water prone to precipitation of iron hydroxide in sanitary ware, the formation of visual sensory obstacles Brown stains. When the amount of iron in the water is> 0.3 mg / L, the iron removal treatment equipment should be installed in the water system. 7.2 Water-saving and electricity-saving technologies Water source heat pump air-conditioning system and water pump running costs are often the biggest expense of operating system engineering costs, in order to rational and effective use of water sources to reduce water wastage and electricity savings in the system design should consider the use of section Water and power-saving technologies. In order to save the amount of water used in the water source, the water mixing device can be installed in the system. The volumetric water mixing device is usually used, and the jet water mixing device can also be used. The former large volume of low cost, the latter small size with high cost. In order to save the source water and electricity, the inverter can be installed with a variable frequency drive to control the water source pump to achieve the effect of reducing water consumption and power consumption. 8. Groundwater artificial replenishment (commonly known as recharge) [2] 8.1 Artificial recharge and its purpose The so-called groundwater artificial replenishment (ie, recharge) is to be replaced by water source heat pump unit after the release of heat into the underground aquifer to the water. In this way, groundwater can be supplemented, the water level can be adjusted, and the balance of reserves can be maintained; energy storage can be recharged to provide hot and cold sources such as winter irrigation and summer irrigation and winter irrigation; and the water head pressure can be maintained to prevent land subsidence. Therefore, in order to protect the groundwater resources and ensure the long-term reliable operation of the water source heat pump system, the water source heat pump system project should generally take the recharge measures. 8.2 Water Quality of Recycled Water At present, there are no national standards for the quality of recharged water. The standards set by various regions and departments vary. The principle that should be noticed is that the quality of the recharged water is better than or equal to that of the original groundwater and will not cause regional groundwater pollution after the recharge. In fact, after the source water passes through the heat pump unit, only the heat is exchanged, the water quality hardly changes, and the recharge will not cause groundwater pollution. 8.3 Types of irrigation According to the actual situation of the project site, ground infiltration supplies can be used to induce supply and recharge. Injectable recharging is generally carried out using tube wells, often using no pressure (gravity flow), negative pressure (vacuum) and pressure (positive pressure) recharge and other methods. Pressureless recirculation is suitable for aquifer permeability, the wells have a return water level and static water level difference. Vacuum negative pressure is suitable for deep buried water table (hydrostatic depth below 10 meters), aquifer permeability is good. Pressurized recharging is suitable for formation with high groundwater level and poor water permeability. For pumping dual wells, in order to prevent interference between wells, should control the well spacing. 8.4 Recharge The amount of recharging is related to hydrogeological conditions, well-forming technology and recharge method. Among them, hydrogeological conditions are the main factors affecting the recharging amount. In general, large amount of well water injection volume is also large. In the bedrock fissure aquifer and karst aquifer recharge, in a recharge year, the return of irrigation and the unit of the amount of change is not large; in the gravel aquifer, the unit is generally the amount of water per unit of water 80% or more. In grit aquifers, the amount of recharge is 50-70% of the water produced. Fine sand aquifer, the unit of the amount of water is 30-50% of the unit of water. Irrigation ratio is to determine the number of pumping well the main basis. 8.5 Rewind In order to prevent and deal with pipe blockage, the method of reversion is mainly adopted. The so-called recharging is to block the pump in the recharging well. The number of recharge wells per recharge well and the duration of recharge are mainly determined by the size and permeability of the aquifer particles. In the karst fissure aquifer for tube well recharge, the long-term does not rebound, recharge ability can still be maintained; loose coarse granular aquifer for tube well recharge, back to the time about 1-2 times a week; in, fine-grained aquifer In the tube well recharge, back interval should be shortened, should be 1-2 times a day. In the process of recharging, we can get a good recharging effect by grasping the appropriate times and times of reheating. If we are afraid of recovering more time, we can not even rewind or rebound. As a result, pipe wells and aquifers are blocked, but not worth the candle. Reviving the duration of muddy water out to see the water so far. For fine-grained aquifers, reintroduction is particularly important. Experiments show that: between several times of recharging and continuous recharging without reinjection compared to the former to restore the water level to ensure the normal operation of recharging wells. 9, the application of water source heat pump water source heat pump central air conditioning system is an efficient, energy saving, environmentally friendly products, but not under any conditions can be applied. The constraints are the power and water. At present, China's electricity supply is adequate and easily solved. The water is its main constraint, not suitable for reliable water, you can not use water source heat pump. For example, some projects have large scale, large cooling or heating load, and many water sources are required. Although there is a certain area of ​​the project site, drilling can also be performed. However, due to insufficient water resources, it is difficult to fully meet the project load requirements. Although some projects have groundwater beneath the site, due to the fact that the project is located in the bustling urban area, the site area is small and there is no place for pumping well water. The site environmental conditions limit the application of water source heat pump system. 10, water source heat pump application engineering example 10.1 Project Overview To manage air pollution in Beijing, Beijing Institute of Geological Prospecting undertook to complete the geothermal water source heat pump heating demonstration project. The schematic diagram of the project is shown in Figure 1. There are 6 office buildings and family buildings in winter with a building area of ​​about 30,000 square meters. The brick-concrete structure and the original HVAC are designed to be heated by coal-fired boilers. Back to system, cast iron four columns 813 radiator. The heat source of the demonstration project is a geothermal well with a water temperature of 68 ℃ and a water volume of 125m3 / h. The 45m shallow Quaternary wells of both eyes have a water temperature of 16 ℃ and a single well discharge volume of 50 m3 / h with well spacing of 100m. Figure 1 Floor Plan of Geothermal Heat Pump Heating Figure 2 Schematic of Geothermal and Water Source Heat Pump Heating Process The project is limited in construction cycle due to geothermal drilling and the heating test is conducted in two phases. Project flow diagram shown in Figure 2. The first phase of the project from December 5, 1999 to March 8, 2000 to 16 ℃ groundwater as a heat source, the use of water source heat pump on the fifth floor of a comprehensive office building heating test. The floor area of ​​4078m2, building height 18m, Panax wall, single-pane glass. Heating before the operation of 14-year-old heating pipe for chemical cleaning, replacement of some rust radiator. In order to compare the effect of heating and cooling in the summer, a fan coil was installed in the first and second floor office buildings. Groundwater discharged from No. 1 well at 16 ℃ is sent to the heat pump unit for heat absorption, and then injected into the ground from No. 2 well to protect the underground water source. Heat pump output of 52 ℃ hot water on the office building heating. The second phase since March 8, 2000 (geothermal wells completed) to April 5, conducted a geothermal water source heat pump heating operation test. Geothermal wells 68 ℃ geothermal water on 25,000 m2 building "once" heating, part of the hot water through the board change to 13 ℃ after the temperature as a waste water discharge, board side of the cold water circulation heat pump heat conversion after the output 52 Hot water on the office building for heating. The summer of 2000, the use of 1,2 pumping, well irrigation and water source heat pump units on the building for refrigeration and air conditioning. 10.2 The main technical parameters Heat pump host: Tsinghua Tongfang artificial environment equipment company GHP type water source central air conditioning system, a Taiwan, the nominal heating capacity of 360kW, cooling capacity of 275 kW, installed power of 64 kW, heating conditions, the condenser out / back Water temperature 52 ℃ / 42 ℃, the evaporator under the condition of the evaporator back to the water temperature 7 ℃ / 12 ℃, heating / cooling conditions switch by the water pipeline valve switch. Plate heat exchanger: BR0.24 Ⅶ type 1, 12 m2, 300 kW, 40-13 / 10-15 ℃, stainless steel. Cold water submersible pump: QJ50-50 / 6 type 2, flow 50m3 / h, lift 50m, power 7.5kW. South House Heating Circulation Pump: ISG 80-160, Taiwan 3, flow 50 m3 / h, lift 32 m, power 7.5 kW. Cold water circulation pump: DFB80-32B type 2, flow 42 m3 / h, head 24m, power 5.5kW. 10.3 Operational results Winter heating, water source heat pump running for 126 consecutive days, stable performance, with the return water temperature (52/42 ℃) control press start and stop, the average hourly consumption of 40 degrees, cold water well water consumption 18 m3 / h, Outdoor temperature -10 ℃, the majority of rooms at room temperature 18 ℃, a few rooms at the end of the heating system 15-16 ℃, the installation of a wind-tray room temperature up to 20-25 ℃. Summer cooling, water source heat pump continuous operation of 120 days to chilled water backwater temperature (12 ℃) control press start and stop, the outdoor temperature of 33-40 ℃, the indoor temperature of 22-26 ℃. Type Size Depth (m) Scope Water volume (m3 / d) Groundwater type Groundwater depth Aquifer thickness Hydrogeological characteristics Tube well diameter 50-1000mm150-600mm Well depth 20-1000m, commonly used within 300m Diving, confined water, fissure water , Cave water within 200m, commonly used within 70m or more than 5m or with aquifer applicable to any sand, pebbles, gravel and structural fractures, karst fracture zone single well 500-6000m3 / d, up to 2-3 million m3 / d large well diameter of 2-10m, commonly used 4-8m depth of well within 20m, commonly used 6-15m diving, pressure water is generally within 10m 5-15m sand, pebbles, gravel, the best permeability coefficient 20m / d single well water 500-10000 m3 / d, the maximum of 2-3 million m3 / d Radiation well wells diameter 4-6m, radiation tube diameter 50-300mm, commonly used 75-150mm well depth of 3-12m Submersible, confined water depth of 12m, radiant tube from the precipitation layer should be greater than 1m generally greater than 2m good supply of coarse sand, gravel layer, but can not contain gravel single well 5000-50000 m3 / d, a maximum of 3.1 Wan m3 / d Seepage Diameter of 450-1500mm, commonly used for 600-1000mm depth of 10m or less, 4-6m with diving, bed depth of penetration of water is generally less than 8m typically 4-6m good replenishment sand, gravel, gravel layer typically 10-30m3 / dm, at most 50--100m3 / dm
Pharmaceutical Machinery
Pharmaceutical machine for blister packing machine, Cartoning Machine, capsule filling machine, capsule tablet counting filling bottle machine, Double Aluminum Tablet Strip Packing Machine,tablet press, capsule polishing machine.
1.Capsule Printing Machine
This machine is applied to printing the outer cap bodies of various specifications and models of capsules in a directional and two-color registration manner, and it also can print various characterse, patterns and trademarks according to the customers' requirements so as to beautify the appearances of capules, pgrade the products, increase the advisement effect of product, promote the enterprise image and achhieve the effect of forgery prevention.
2.Capsule Filling Machine
Capsule filling machine for powder,
3.Capsule Tablet Counting Filling Bottle Machine
It can be widely used for counting and bottling solid preparations, such as pills, sugar-coated tablets, plain tablets, soft and hard capsules and other shapes of medicine granules.
4.Double Aluminum Tablet Strip Packing Machine
The machine is applicable for tablets, caplet,capsules ,pharma candy and irregular shapes of pharmaceutical for mono pack or multi packing double-Alu.
5.Tablet Press Machine
Tablet press machine is mainly used in pharmaceutical, chemical, food, electronic industry, suitable for small batch production, the department of laboratory ,hospital and other pressing tablets, sugar tablets, catalyst, calcium, coffee tablet, powder metallurgy, electronic components and various agricultural fertilizer tablets.
Pharmaceutical Machine,Capsule Printing Machine,Capsule Counting Bottlling Machine,Pharmacy Tablet Press Machine,Double Aluminum Tablet Strip Packing Machine
WENZHOU GAOGER MACHINERY TECHNOLOGY CO.,LTD , https://www.gaogermc.com