CN202002246U - Natural cooling cold water unit - Google Patents

Natural cooling cold water unit Download PDF

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Publication number
CN202002246U
CN202002246U CN2011201158917U CN201120115891U CN202002246U CN 202002246 U CN202002246 U CN 202002246U CN 2011201158917 U CN2011201158917 U CN 2011201158917U CN 201120115891 U CN201120115891 U CN 201120115891U CN 202002246 U CN202002246 U CN 202002246U
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China
Prior art keywords
valve
cooling
air
user
conditioner
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CN2011201158917U
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Chinese (zh)
Inventor
李志明
吴伟营
何卫国
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HUADE INDUSTRY Co Ltd GUANGZHOU CITY
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HUADE INDUSTRY Co Ltd GUANGZHOU CITY
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Abstract

The utility model discloses a natural cooling cold water unit, which comprises a compression refrigeration circulating unit and a natural cooling circulating unit, wherein the compression refrigeration circulating unit comprises a compressor, an evaporative condenser, a cooling water pump, a throttling device, an evaporator and a user end air conditioner, and the natural cooling circulating unit is a direct-cooling natural cooling circulating unit composed of an evaporative condenser, a cooling water pump and a user end air conditioner, or is a indirect-cooling natural cooling circulating unit composed of an evaporative condenser, a cooling water pump, a heat exchanger and a user end air conditioner. When outdoor temperature is low in winter or in transition seasons, the compressor is turned off, and the cold water unit can be switched to a natural cooling circulating mode with direct cooling circulation or indirect cooling circulation. Compared with an air conditioning system in the prior art, high-efficiency refrigeration and energy-saving operation of the unit can be realized effectively in winter or in transition seasons so that annual operational efficiency is improved.

Description

A kind of natural cooling type handpiece Water Chilling Units
Technical field
The utility model relates to the air conditioner refrigerating technical field, particularly a kind of natural cooling type handpiece Water Chilling Units.
Background technology
Developing rapidly of modern communication technology, internet and 3G business, impel various high density machine rooms such as IDC, communications equipment room etc. to grow with each passing day, and the thermic load density in these places is bigger, and the handpiece Water Chilling Units that needs the special round-the-clock refrigeration of configuration is to satisfy the requirement of constant humiture.In addition, also there are the demand of all-year-around cooling in some golf calorific value factory buildings and special process factory building.
These are needed the zone of all-year-around cooling, mainly contain following several cooling mode at present: 1, adopt traditional air-cooled or water cooling air conditioning system directly to carry out all-year-around cooling, but its energy consumption is higher, and exists when moving in the winter time such as potential safety hazard such as on fire; 2, utilize heat pipe Natural Circulation cooling, as application number is that 201010158303.8 patent application discloses a kind of new air whole air conditioner that utilizes the heat pipe circulation, the effect that possesses certain safety economy, but still there is the problem that cold-producing medium is short of power, internal circulating load is little, causes refrigerating efficiency limited; 3, utilize outdoor new wind cooling, as application number is that 200710044017.7 patent application discloses a kind of by introducing the natural cooling type air conditioner system that the new wind of extraneous low temperature carries out sensible heat transfer, this technology has certain effect cutting down the consumption of energy and reduce aspects such as unit opening time, but the problem that have still under extreme weather that filter blocks, preheat coil freeze, the humidity of air and cleanliness factor is difficult to guarantee, influence needs the security of operation of cold space and equipment; 4, utilize the cooling tower cooling (to claim free cold supply again, free cooling), as application number is that 201010125767.9 patent application discloses a kind of energy-saving cooling tower cold supply system, this mode can not destroyed the attractive in appearance of outside vertical surface of building, can avoid unnecessary energy waste again, be worth promoting, but this must transform on original air-conditioning equipment, need increase cooling tower and respective line facility in addition, make cost increase, in addition, this system operates to seasonality (being the short-term operation pattern of transition season), and equipment can not be fully used, most of the time is in idle state throughout the year, has strengthened the amortization charge of equipment.
For this reason, it is lower to develop a kind of equipment cost again, and can utilize natural environment temperature, the round-the-clock handpiece Water Chilling Units that needs cold space to freeze to whole years such as communications equipment room, technology factory buildings, is necessary to field of air conditioning.
The utility model content
The purpose of this utility model is to overcome the deficiencies in the prior art, and a kind of lower natural cooling type handpiece Water Chilling Units of nature type of cooling all-year-around cooling and equipment cost and energy consumption of utilizing is provided.
The technical solution of the utility model is:
A kind of natural cooling type handpiece Water Chilling Units of the utility model, comprise evaporative condenser, cooling water pump, throttling arrangement, compressor, evaporimeter and user side air-conditioner, compressor, evaporative condenser, throttling arrangement and evaporimeter are connected successively by pipeline, cooling water pump is connected with the evaporative condenser circulation by pipeline, the arrival end of user side air-conditioner is connected with the port of export of cooling water pump and evaporimeter respectively, and the port of export of user side air-conditioner is connected with the arrival end of evaporative condenser and evaporimeter respectively; The port of export of cooling water pump is provided with first valve sets, and the port of export of user side air-conditioner is provided with second valve sets; Compressor, evaporative condenser, cooling water pump, throttling arrangement, evaporimeter and user side air-conditioner are formed the compression refrigeration cycling element, and evaporative condenser, cooling water pump and user side air-conditioner are formed nature cool cycles unit.
Described first valve sets comprises the first compression refrigeration valve and the first cooling refrigeration valve, on the port of export that the first compression refrigeration valve is located at cooling water pump and the pipeline that evaporative condenser is connected, on the port of export that the first cooling refrigeration valve is located at cooling water pump and the pipeline that the user side air-conditioner is connected; Described second valve sets comprises the second compression refrigeration valve and the second cooling refrigeration valve, on the port of export that the second compression refrigeration valve is located at the user side air-conditioner and the pipeline that evaporimeter is connected, on the port of export that the second cooling refrigeration valve is located at the user side air-conditioner and the pipeline that evaporative condenser is connected.
Wherein, the described first compression refrigeration valve, the first cooling refrigeration valve, the second compression refrigeration valve and the second cooling refrigeration valve all adopt magnetic valve or motor-driven valve.
Described first valve sets adopts the first one-in-and-two-out triple valve, and the entrance point of the first one-in-and-two-out triple valve is connected with cooling water pump, and two ports of export of the first one-in-and-two-out triple valve are connected with the user side air-conditioner with evaporative condenser respectively; Described second valve sets adopts the second one-in-and-two-out triple valve, and the entrance point of the second one-in-and-two-out triple valve is connected with the user side air-conditioner, and the port of export of the second one-in-and-two-out triple valve is connected with evaporative condenser with evaporimeter respectively.
Wherein, the described first one-in-and-two-out triple valve and the second one-in-and-two-out triple valve all adopt self-operated three-way valve, electromagnetic type triple valve or electrodynamic type triple valve.
Described evaporative condenser can adopt tube-plate evaporative condensing device or coil pipe evaporative condenser; In order to guarantee that handpiece Water Chilling Units can normally move in the winter time, can be provided with antifreezing agent or install electric heater additional in evaporative condenser and the circulating line that cooling water pump is connected.
Be provided with chemicals dosing plant or aseptic filtration device in described evaporative condenser and the circulating line that cooling water pump is connected.
When above-mentioned natural cooling type handpiece Water Chilling Units was used, its detailed process was as follows:
(1) in summer during cooling condition, this handpiece Water Chilling Units runs on compression refrigeration circulation pattern (being the work of compression refrigeration cycling element), the pipeline that first valve sets control cooling water pump is connected with evaporative condenser is connected, the pipeline that second valve sets control user side air-conditioner port of export is connected with evaporimeter is connected operation compressor and cooling water pump.Gaseous refrigerant in the compressor suction evaporimeter is compressed into the gas of high-temperature high-pressure state; The gaseous refrigerant of HTHP enters evaporative condenser, and heat release is condensed into the liquid of temperature in the high pressure; The high pressure liquid refrigerant that obtains enters in the evaporimeter after the throttling arrangement step-down, carries out producing cold water after the heat exchange with water; Gaseous refrigerant is sucked by compressor once more, realizes the compression refrigeration circulation.
(2) in the winter time or transition season during cooling condition, this handpiece Water Chilling Units runs on the natural cool cycles pattern (being nature cool cycles cell operation) under the direct cooling circulation form, the pipeline that first valve sets control cooling water pump is connected with user side air-conditioner arrival end is connected, the pipeline that second valve sets control user side air-conditioner port of export is connected with evaporative condenser is connected the operation cooling water pump.Low-temperature cooling water in the evaporative condenser after the evaporation heat release carries out producing cold wind after the heat exchange with air in cooling water pump pumps into the user side air-conditioner; Cooling water after the heat exchange enters evaporation heat release in the evaporative condenser, realizes the natural cool cycles of direct cooling mode.
The another kind of natural cooling type handpiece Water Chilling Units of the utility model, comprise heat exchanger, evaporative condenser, cooling water pump, throttling arrangement, compressor, evaporimeter and user side air-conditioner, compressor, evaporative condenser, throttling arrangement is connected by pipeline successively with evaporimeter, cooling water pump is connected with the evaporative condenser circulation by pipeline, cooling water pump, heat exchanger and evaporative condenser connect to form first heat exchanger channels successively by pipeline, the arrival end of user side air-conditioner is connected with the port of export of heat exchanger and evaporimeter respectively, the port of export of user side air-conditioner is connected with the arrival end of heat exchanger and evaporimeter respectively, and heat exchanger and user side air-conditioner connect to form second heat exchanger channels by pipeline; The port of export of cooling water pump is provided with first valve sets, and the port of export of user side air-conditioner is provided with second valve sets; Compressor, evaporative condenser, cooling water pump, throttling arrangement, evaporimeter and user side air-conditioner are formed the compression refrigeration cycling element, and evaporative condenser, cooling water pump, heat exchanger and user side air-conditioner are formed nature cool cycles unit.
Described first valve sets comprises the first compression refrigeration valve and the first cooling refrigeration valve, on the port of export that the first compression refrigeration valve is located at cooling water pump and the pipeline that evaporative condenser is connected, on the port of export that the first cooling refrigeration valve is located at cooling water pump and the pipeline that heat exchanger is connected; Described second valve sets comprises the second compression refrigeration valve and the second cooling refrigeration valve, on the port of export that the second compression refrigeration valve is located at the user side air-conditioner and the pipeline that evaporimeter is connected, on the port of export that the second cooling refrigeration valve is located at the user side air-conditioner and the pipeline that heat exchanger is connected.
Wherein, the described first compression refrigeration valve, the first cooling refrigeration valve, the second compression refrigeration valve and the second cooling refrigeration valve all adopt magnetic valve or motor-driven valve.
Described first valve sets adopts the first one-in-and-two-out triple valve, and the entrance point of the first one-in-and-two-out triple valve is connected with cooling water pump, and two ports of export of the first one-in-and-two-out triple valve are connected with heat exchanger with evaporative condenser respectively; Described second valve sets adopts the second one-in-and-two-out triple valve, and the entrance point of the second one-in-and-two-out triple valve is connected with the user side air-conditioner, and the port of export of the second one-in-and-two-out triple valve is connected with heat exchanger with evaporimeter respectively.
Wherein, the described first one-in-and-two-out triple valve and the second one-in-and-two-out triple valve all adopt self-operated three-way valve, electromagnetic type triple valve or electrodynamic type triple valve.
Described evaporative condenser can adopt tube-plate evaporative condensing device or coil pipe evaporative condenser; In order to guarantee that handpiece Water Chilling Units can normally move in the winter time, can be provided with antifreezing agent or install electric heater additional in evaporative condenser and the circulating line that cooling water pump is connected.
Be provided with chemicals dosing plant or aseptic filtration device in described evaporative condenser and the circulating line that cooling water pump is connected.
Described heat exchanger can adopt plate type heat exchanger or pipe heat exchanger.
When above-mentioned natural cooling type handpiece Water Chilling Units was used, its detailed process was as follows:
(1) in summer during cooling condition, this handpiece Water Chilling Units runs on compression refrigeration circulation pattern (being the work of compression refrigeration cycling element), the pipeline that first valve sets control cooling water pump is connected with evaporative condenser is connected, the pipeline that second valve sets control user side air-conditioner port of export is connected with evaporimeter is connected operation compressor and cooling water pump.Gaseous refrigerant in the compressor suction evaporimeter is compressed into the gas of high-temperature high-pressure state; The gaseous refrigerant of HTHP enters evaporative condenser, and heat release is condensed into the liquid of temperature in the high pressure; The high pressure liquid refrigerant that obtains enters in the evaporimeter after the throttling arrangement step-down, carries out producing cold water after the heat exchange with water; Gaseous refrigerant is sucked by compressor once more, realizes the compression refrigeration circulation.
(2) in the winter time or transition season during cooling condition, this handpiece Water Chilling Units runs on the natural cool cycles pattern (being nature cool cycles cell operation) under the indirect cooling circulation form, the pipeline that first valve sets control cooling water pump is connected with heat exchanger is connected, the pipeline that second valve sets control user side air-conditioner port of export is connected with heat exchanger is connected the operation cooling water pump.Low-temperature cooling water in the evaporative condenser after the evaporation heat release is through flowing in first heat exchanger channels after the cooling water pump supercharging, when flowing through heat exchanger and the high temperature circulation water of second heat exchanger channels carry out heat exchange, return in the evaporative condenser after low-temperature cooling water is heated; The high temperature circulation water that temperature reduces enters in the user side air-conditioner, carries out producing cold wind after the heat exchange with air; High temperature circulation water after the heat exchange flows in second heat exchanger channels, when flowing through heat exchanger and the low-temperature cooling water of first heat exchanger channels carry out heat exchange, realize the natural cool cycles of indirect cooling mode.
Low-temperature cooling water in the evaporative condenser after the evaporation heat release carries out producing cold wind after the heat exchange with air in cooling water pump pumps into the user side air-conditioner; Cooling water after the heat exchange enters evaporation heat release in the evaporative condenser, realizes the natural cool cycles of direct cooling mode.
The utility model has following beneficial effect with respect to prior art:
1, in the winter time or when transition season, outdoor temperature was low, close compressor, this handpiece Water Chilling Units can be switched to the natural cool cycles pattern of direct cooling circulation or indirect cooling circulation, compare with existing air-conditioning system, can realize effectively that unit in the winter time or transition refrigerated efficient, energy-saving run during season, has improved whole year operation efficient.
2, this handpiece Water Chilling Units in the winter time or adopt the water quench mode transition season, the pipeline of compression refrigeration circulation module remains static, promptly summer kind of refrigeration cycle system pipeline need not change bore, thereby saved manufacturing cost and installation space.
3, this handpiece Water Chilling Units is on the basis of original air-conditioning equipment, needn't install cooling tower additional and the respective line facility can be realized " free cold supply ", and reality has reduced manufacturing cost, has avoided the wasting of resources.
Description of drawings
Fig. 1 is the principle schematic of handpiece Water Chilling Units among the embodiment 1.
Fig. 2 is the principle schematic of handpiece Water Chilling Units among the embodiment 2.
Fig. 3 is the principle schematic of handpiece Water Chilling Units among the embodiment 3.
Fig. 4 is the principle schematic of handpiece Water Chilling Units among the embodiment 4.
The specific embodiment
Below in conjunction with embodiment and accompanying drawing, the utility model is described in further detail, but embodiment of the present utility model is not limited thereto.
Embodiment 1
A kind of natural cooling type handpiece Water Chilling Units of present embodiment, as shown in Figure 1, comprise evaporative condenser 12, cooling water pump 15, throttling arrangement 13, compressor 11, evaporimeter 14 and user side air-conditioner 23, compressor 11, evaporative condenser 12, throttling arrangement 13 and evaporimeter 14 are connected successively by pipeline, cooling water pump 15 is connected with evaporative condenser 12 circulations by pipeline, the arrival end of user side air-conditioner 23 is connected with the port of export of cooling water pump 15 with evaporimeter 14 respectively, and the port of export of user side air-conditioner 23 is connected with the arrival end of evaporative condenser 12 with evaporimeter 14 respectively; The port of export of cooling water pump 15 is provided with first valve sets, and the port of export of user side air-conditioner 23 is provided with second valve sets; Compressor 11, evaporative condenser 12, cooling water pump 15, throttling arrangement 13, evaporimeter 14 and user side air-conditioner 23 are formed compression refrigeration cycling element (shown in each mechanism that the employing solid line is connected among the figure), and evaporative condenser 12, cooling water pump 15 and user side air-conditioner 23 are formed nature cool cycles unit (shown in dotted portion among the figure).
First valve sets comprises the first compression refrigeration valve 16 and the first cooling refrigeration valve 21, on the port of export that the first compression refrigeration valve 16 is located at cooling water pump 15 and the pipeline that evaporative condenser 12 is connected, on the port of export that the first cooling refrigeration valve 21 is located at cooling water pump 15 and the pipeline that user side air-conditioner 23 is connected; Second valve sets comprises the second compression refrigeration valve 17 and the second cooling refrigeration valve 22, the second compression refrigeration valve establishes 17 on the port of export of user side air-conditioner 23 and pipeline that evaporimeter 14 is connected, on the port of export that the second cooling refrigeration valve 22 is located at user side air-conditioner 23 and the pipeline that evaporative condenser 12 is connected.
Wherein, the first compression refrigeration valve 16, the first cooling refrigeration valve 21, the second compression refrigeration valve 17 and the second cooling refrigeration valve 22 all can adopt magnetic valve or motor-driven valve.
Evaporative condenser 12 can adopt tube-plate evaporative condensing device or coil pipe evaporative condenser; In order to guarantee that handpiece Water Chilling Units can normally move in the winter time, can be provided with antifreezing agent or install electric heater additional in evaporative condenser 12 and the circulating line that cooling water pump 15 is connected.
Can be provided with chemicals dosing plant or aseptic filtration device in evaporative condenser 12 and the circulating line that cooling water pump 15 is connected.
When above-mentioned natural cooling type handpiece Water Chilling Units was used, its detailed process was as follows:
(1) in summer during cooling condition, this handpiece Water Chilling Units runs on compression refrigeration circulation pattern (being the work of compression refrigeration cycling element), open the first compression refrigeration valve 16 and the second compression refrigeration valve 17, close the first cooling refrigeration valve 21 and the second cooling refrigeration valve 22, operation compressor 11 and cooling water pump 15.Gaseous refrigerant in the compressor 11 suction evaporimeters 14 is compressed into the gas of high-temperature high-pressure state; The gaseous refrigerant of HTHP enters evaporative condenser 12, and heat release is condensed into the liquid of temperature in the high pressure; The high pressure liquid refrigerant that obtains enters in the evaporimeter 14 after throttling arrangement 13 step-downs, carries out producing cold water after the heat exchange with water; Gaseous refrigerant is sucked by compressor 11 once more, realizes the compression refrigeration circulation.
(2) in the winter time or transition season during cooling condition, this handpiece Water Chilling Units runs on the natural cool cycles pattern (being nature cool cycles cell operation) under the direct cooling circulation form, open the first cooling refrigeration valve 21 and the second cooling refrigeration valve 22, close the first compression refrigeration valve 16 and the second compression refrigeration valve 17, operation cooling water pump 15.Low-temperature cooling water in the evaporative condenser 12 after the evaporation heat release carries out producing cold wind after the heat exchange with air in cooling water pump 15 pumps into user side air-conditioner 23; Cooling water after the heat exchange enters evaporation heat release in the evaporative condenser 12, realizes the natural cool cycles of direct cooling mode.
Embodiment 2
A kind of natural cooling type handpiece Water Chilling Units of present embodiment, as shown in Figure 2, compare with embodiment 1, its difference is, first valve sets adopts the first one-in-and-two-out triple valve 25, the entrance point of the first one-in-and-two-out triple valve 25 is connected with cooling water pump 15, and two ports of export of the first one-in-and-two-out triple valve 25 are connected with user side air-conditioner 23 with evaporative condenser 12 respectively; Second valve sets adopts the entrance point of the second one-in-and-two-out triple valve, 26, the second one-in-and-two-out triple valves 26 to be connected with user side air-conditioner 23, and the port of export of the second one-in-and-two-out triple valve 26 is connected with evaporative condenser 12 with evaporimeter 14 respectively.
Wherein, the first one-in-and-two-out triple valve 25 and the second one-in-and-two-out triple valve 26 all can adopt self-operated three-way valve, electromagnetic type triple valve or electrodynamic type triple valve.
The operation principle of this natural cooling type handpiece Water Chilling Units is identical with embodiment 1.
Embodiment 3
A kind of natural cooling type handpiece Water Chilling Units of present embodiment, as shown in Figure 3, comprise heat exchanger 24, evaporative condenser 12, cooling water pump 15, throttling arrangement 13, compressor 11, evaporimeter 14 and user side air-conditioner 23, compressor 11, evaporative condenser 12, throttling arrangement 13 and evaporimeter 14 are connected successively by pipeline, cooling water pump 15 is connected with evaporative condenser 12 circulations by pipeline, cooling water pump 15, heat exchanger 24 and evaporative condenser 12 connect to form first heat exchanger channels successively by pipeline, the arrival end of user side air-conditioner 23 is connected with the port of export of heat exchanger 24 with evaporimeter 14 respectively, the port of export of user side air-conditioner 23 is connected with the arrival end of heat exchanger 24 with evaporimeter 14 respectively, and heat exchanger 24 connects to form second heat exchanger channels with user side air-conditioner 23 by pipeline; The port of export of cooling water pump 15 is provided with first valve sets, and the port of export of user side air-conditioner 23 is provided with second valve sets; Compressor 11, evaporative condenser 12, cooling water pump 15, throttling arrangement 13, evaporimeter 14 and user side air-conditioner 23 are formed compression refrigeration cycling element (shown in each mechanism that the employing solid line is connected among the figure), and evaporative condenser 12, cooling water pump 15, heat exchanger 14 and user side air-conditioner 23 are formed nature cool cycles unit (shown in dotted portion among the figure).
First valve sets comprises the first compression refrigeration valve 16 and the first cooling refrigeration valve 21, on the port of export that the first compression refrigeration valve 16 is located at cooling water pump 15 and the pipeline that evaporative condenser 12 is connected, on the port of export that the first cooling refrigeration valve 21 is located at cooling water pump 15 and the pipeline that heat exchanger 24 is connected; Second valve sets comprises the second compression refrigeration valve 17 and the second cooling refrigeration valve 22, on the port of export that the second compression refrigeration valve 17 is located at user side air-conditioner 23 and the pipeline that evaporimeter 14 is connected, on the port of export that the second cooling refrigeration valve 22 is located at user side air-conditioner 23 and the pipeline that heat exchanger 24 is connected.
Wherein, the first compression refrigeration valve 16, the first cooling refrigeration valve 21, the second compression refrigeration valve 17 and the second cooling refrigeration valve 22 all can adopt magnetic valve or motor-driven valve.
Evaporative condenser 12 can adopt tube-plate evaporative condensing device or coil pipe evaporative condenser; In order to guarantee that handpiece Water Chilling Units can normally move in the winter time, can be provided with antifreezing agent or install electric heater additional in evaporative condenser 12 and the circulating line that cooling water pump 15 is connected.
Be provided with chemicals dosing plant or aseptic filtration device in evaporative condenser 12 and the circulating line that cooling water pump 15 is connected.
Heat exchanger 24 can adopt plate type heat exchanger or pipe heat exchanger.
When above-mentioned natural cooling type handpiece Water Chilling Units was used, its detailed process was as follows:
(1) in summer during cooling condition, this handpiece Water Chilling Units runs on compression refrigeration circulation pattern (being the work of compression refrigeration cycling element), open the first compression refrigeration valve 16 and the second compression refrigeration valve 17, close the first cooling refrigeration valve 21 and the second cooling refrigeration valve 22, operation compressor 11 and cooling water pump 15.Compressor 11 aspirates the interior gaseous refrigerant of evaporimeters, is compressed into the gas of high-temperature high-pressure state; The gaseous refrigerant of HTHP enters evaporative condenser 12, and heat release is condensed into the liquid of temperature in the high pressure; The high pressure liquid refrigerant that obtains enters in the evaporimeter 14 after throttling arrangement 13 step-downs, carries out producing cold water after the heat exchange with water; Gaseous refrigerant is sucked by compressor 11 once more, realizes the compression refrigeration circulation.
(2) in the winter time or transition season during cooling condition, this handpiece Water Chilling Units runs on the natural cool cycles pattern (being nature cool cycles cell operation) under the indirect cooling circulation form, open the first cooling refrigeration valve 21 and the second cooling refrigeration valve 22, close the first compression refrigeration valve 16 and the second compression refrigeration valve 17, operation cooling water pump 15.Low-temperature cooling water in the evaporative condenser 12 after the evaporation heat release is through flowing in first heat exchanger channels (shown in superposed dotted line among the figure) after cooling water pump 15 superchargings, when flowing through heat exchanger 24 and the high temperature circulation water of second heat exchanger channels (shown in the dotted line that is positioned at the bottom among the figure) carry out heat exchange, return after low-temperature cooling water is heated in the evaporative condenser 12; The high temperature circulation water that temperature reduces enters in the user side air-conditioner 23, carries out producing cold wind after the heat exchange with air; High temperature circulation water after the heat exchange flows in second heat exchanger channels, when flowing through heat exchanger 24 and the low-temperature cooling water of first heat exchanger channels carry out heat exchange, realize the natural cool cycles of indirect cooling mode.
Embodiment 4
A kind of natural cooling type handpiece Water Chilling Units of present embodiment, as shown in Figure 4, compare with embodiment 3, its difference is, first valve sets adopts the first one-in-and-two-out triple valve 25, the entrance point of the first one-in-and-two-out triple valve 25 is connected with cooling water pump 15, and two ports of export of the first one-in-and-two-out triple valve 25 are connected with heat exchanger 24 with evaporative condenser 12 respectively; Second valve sets adopts the entrance point of the second one-in-and-two-out triple valve, 26, the second one-in-and-two-out triple valves 26 to be connected with user side air-conditioner 23, and the port of export of the second one-in-and-two-out triple valve 26 is connected with heat exchanger 24 with evaporimeter 14 respectively.
Wherein, the first one-in-and-two-out triple valve 25 and the second one-in-and-two-out triple valve 26 all can adopt self-operated three-way valve, electromagnetic type triple valve or electrodynamic type triple valve.
The operation principle of this natural cooling type handpiece Water Chilling Units is identical with embodiment 3.
As mentioned above, just can realize the utility model preferably, the foregoing description is preferred embodiment of the present utility model only, is not to be used for limiting practical range of the present utility model; Be that all equalizations of being done according to the utility model content change and modification, all contained by the utility model claim scope required for protection.

Claims (10)

1. natural cooling type handpiece Water Chilling Units, it is characterized in that, comprise evaporative condenser, cooling water pump, throttling arrangement, compressor, evaporimeter and user side air-conditioner, compressor, evaporative condenser, throttling arrangement and evaporimeter are connected successively by pipeline, cooling water pump is connected with the evaporative condenser circulation by pipeline, the arrival end of user side air-conditioner is connected with the port of export of cooling water pump and evaporimeter respectively, and the port of export of user side air-conditioner is connected with the arrival end of evaporative condenser and evaporimeter respectively; The port of export of cooling water pump is provided with first valve sets, and the port of export of user side air-conditioner is provided with second valve sets; Compressor, evaporative condenser, cooling water pump, throttling arrangement, evaporimeter and user side air-conditioner are formed the compression refrigeration cycling element, and evaporative condenser, cooling water pump and user side air-conditioner are formed nature cool cycles unit.
2. according to the described a kind of natural cooling type handpiece Water Chilling Units of claim 1, it is characterized in that, described first valve sets comprises the first compression refrigeration valve and the first cooling refrigeration valve, on the port of export that the first compression refrigeration valve is located at cooling water pump and the pipeline that evaporative condenser is connected, on the port of export that the first cooling refrigeration valve is located at cooling water pump and the pipeline that the user side air-conditioner is connected; Described second valve sets comprises the second compression refrigeration valve and the second cooling refrigeration valve, on the port of export that the second compression refrigeration valve is located at the user side air-conditioner and the pipeline that evaporimeter is connected, on the port of export that the second cooling refrigeration valve is located at the user side air-conditioner and the pipeline that evaporative condenser is connected.
3. according to the described a kind of natural cooling type handpiece Water Chilling Units of claim 2, it is characterized in that the described first compression refrigeration valve, the first cooling refrigeration valve, the second compression refrigeration valve and the second cooling refrigeration valve all adopt magnetic valve or motor-driven valve.
4. according to the described a kind of natural cooling type handpiece Water Chilling Units of claim 1, it is characterized in that, described first valve sets adopts the first one-in-and-two-out triple valve, the entrance point of the first one-in-and-two-out triple valve is connected with cooling water pump, and two ports of export of the first one-in-and-two-out triple valve are connected with the user side air-conditioner with evaporative condenser respectively; Described second valve sets adopts the second one-in-and-two-out triple valve, and the entrance point of the second one-in-and-two-out triple valve is connected with the user side air-conditioner, and the port of export of the second one-in-and-two-out triple valve is connected with evaporative condenser with evaporimeter respectively.
5. according to the described a kind of natural cooling type handpiece Water Chilling Units of claim 4, it is characterized in that the described first one-in-and-two-out triple valve and the second one-in-and-two-out triple valve all adopt self-operated three-way valve, electromagnetic type triple valve or electrodynamic type triple valve.
6. according to the described a kind of natural cooling type handpiece Water Chilling Units of claim 1, it is characterized in that described evaporative condenser adopts tube-plate evaporative condensing device or coil pipe evaporative condenser; Be provided with antifreezing agent or install electric heater additional in evaporative condenser and the circulating line that cooling water pump is connected.
7. according to the described a kind of natural cooling type handpiece Water Chilling Units of claim 1, it is characterized in that, be provided with chemicals dosing plant or aseptic filtration device in described evaporative condenser and the circulating line that cooling water pump is connected.
8. natural cooling type handpiece Water Chilling Units, it is characterized in that, comprise heat exchanger, evaporative condenser, cooling water pump, throttling arrangement, compressor, evaporimeter and user side air-conditioner, compressor, evaporative condenser, throttling arrangement is connected by pipeline successively with evaporimeter, cooling water pump is connected with the evaporative condenser circulation by pipeline, cooling water pump, heat exchanger and evaporative condenser connect to form first heat exchanger channels successively by pipeline, the arrival end of user side air-conditioner is connected with the port of export of heat exchanger and evaporimeter respectively, the port of export of user side air-conditioner is connected with the arrival end of heat exchanger and evaporimeter respectively, and heat exchanger and user side air-conditioner connect to form second heat exchanger channels by pipeline; The port of export of cooling water pump is provided with first valve sets, and the port of export of user side air-conditioner is provided with second valve sets; Compressor, evaporative condenser, cooling water pump, throttling arrangement, evaporimeter and user side air-conditioner are formed the compression refrigeration cycling element, and evaporative condenser, cooling water pump, heat exchanger and user side air-conditioner are formed nature cool cycles unit.
9. described according to Claim 8 a kind of natural cooling type handpiece Water Chilling Units, it is characterized in that, described first valve sets comprises the first compression refrigeration valve and the first cooling refrigeration valve, on the port of export that the first compression refrigeration valve is located at cooling water pump and the pipeline that evaporative condenser is connected, on the port of export that the first cooling refrigeration valve is located at cooling water pump and the pipeline that heat exchanger is connected; Described second valve sets comprises the second compression refrigeration valve and the second cooling refrigeration valve, on the port of export that the second compression refrigeration valve is located at the user side air-conditioner and the pipeline that evaporimeter is connected, on the port of export that the second cooling refrigeration valve is located at the user side air-conditioner and the pipeline that heat exchanger is connected.
10. described according to Claim 8 a kind of natural cooling type handpiece Water Chilling Units, it is characterized in that, described first valve sets adopts the first one-in-and-two-out triple valve, the entrance point of the first one-in-and-two-out triple valve is connected with cooling water pump, and two ports of export of the first one-in-and-two-out triple valve are connected with heat exchanger with evaporative condenser respectively; Described second valve sets adopts the second one-in-and-two-out triple valve, and the entrance point of the second one-in-and-two-out triple valve is connected with the user side air-conditioner, and the port of export of the second one-in-and-two-out triple valve is connected with heat exchanger with evaporimeter respectively.
CN2011201158917U 2011-04-19 2011-04-19 Natural cooling cold water unit Expired - Lifetime CN202002246U (en)

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Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102650476A (en) * 2012-04-24 2012-08-29 彭渊博 Energy-saving water chilling unit and water chilling control method for same
CN102654339A (en) * 2012-05-11 2012-09-05 彭渊博 Cloud refrigeration method and system
CN104456789A (en) * 2014-11-11 2015-03-25 国家电网公司 Switching device of cooling water supply system of main ventilation air conditioner of underground powerhouse
CN105783165A (en) * 2016-05-23 2016-07-20 珠海铨高机电设备有限公司 Cooling unit and air-cooled chiller unit with cooling unit
CN112460863A (en) * 2020-12-10 2021-03-09 珠海格力电器股份有限公司 Water chilling unit and refrigeration control method and device thereof
CN112460711A (en) * 2020-12-16 2021-03-09 珠海格力电器股份有限公司 Water chilling unit control method and device and water chilling unit

Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102650476A (en) * 2012-04-24 2012-08-29 彭渊博 Energy-saving water chilling unit and water chilling control method for same
CN102650476B (en) * 2012-04-24 2014-08-13 彭渊博 Energy-saving water chilling unit and water chilling control method for same
CN102654339A (en) * 2012-05-11 2012-09-05 彭渊博 Cloud refrigeration method and system
CN102654339B (en) * 2012-05-11 2014-12-31 彭渊博 Cloud refrigeration method and system
CN104456789A (en) * 2014-11-11 2015-03-25 国家电网公司 Switching device of cooling water supply system of main ventilation air conditioner of underground powerhouse
CN104456789B (en) * 2014-11-11 2017-05-03 国家电网公司 Switching device of cooling water supply system of main ventilation air conditioner of underground powerhouse
CN105783165A (en) * 2016-05-23 2016-07-20 珠海铨高机电设备有限公司 Cooling unit and air-cooled chiller unit with cooling unit
CN112460863A (en) * 2020-12-10 2021-03-09 珠海格力电器股份有限公司 Water chilling unit and refrigeration control method and device thereof
CN112460711A (en) * 2020-12-16 2021-03-09 珠海格力电器股份有限公司 Water chilling unit control method and device and water chilling unit

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