CN102589114A - Air-cooled water chiller with natural cooling function and control method for water chiller - Google Patents

Air-cooled water chiller with natural cooling function and control method for water chiller Download PDF

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Publication number
CN102589114A
CN102589114A CN2012100657014A CN201210065701A CN102589114A CN 102589114 A CN102589114 A CN 102589114A CN 2012100657014 A CN2012100657014 A CN 2012100657014A CN 201210065701 A CN201210065701 A CN 201210065701A CN 102589114 A CN102589114 A CN 102589114A
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China
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temperature sensor
water
triple valve
chilled water
interface
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CN2012100657014A
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Inventor
李敏华
邱育群
林创辉
黄国斌
岑敏婷
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Guangdong Shenling Air Conditioning Equipment Co Ltd
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Guangdong Shenling Air Conditioning Equipment Co Ltd
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Priority to CN2012100657014A priority Critical patent/CN102589114A/en
Publication of CN102589114A publication Critical patent/CN102589114A/en
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Abstract

Disclosed are an air-cooled water chiller with a natural cooling function and a control method for the water chiller. The air-cooled water chiller with the natural cooling function comprises a compressor, a condenser, a throttler and an evaporator which are sequentially connected, a condensate fan is arranged on the condenser, the air-cooled water chiller further comprises a natural cooling coil, a three-way valve, an inlet chilled water temperature sensor, an outlet chilled water temperature sensor, an outdoor environment temperature sensor and a controller, the natural cooling coil is arranged on an air inlet side of the condenser, the three-way valve comprises a first joint, a second joint and a third joint and is serially connected onto a water inlet pipe of the evaporator through the first joint and the second joint, a water inlet pipe of the natural cooling coil is communicated with the water inlet pipe of the evaporator, and a water outlet pipe of the natural cooling coil is communicated with the third joint of the three-way valve. The air-cooled water chiller has the advantages of remarkable energy-saving effect, high running reliability, simple control method, compact structure, small occupied space and low production cost.

Description

The wind-cooled cold-water machine and the control method thereof of the cooling of band nature
Technical field
The present invention relates to a kind of wind-cooled cold-water machine, particularly a kind of wind-cooled cold-water machine and control method thereof with cooling naturally.
Background technology
Present communication machine room, particularly large-scale data center generally is that to adopt the wind-cooled cold-water machine be that the indoor end of the air-conditioning equipment in the communication machine room provides chilled water as low-temperature receiver, thereby the indoor environment of communication machine room is carried out refrigeration cool-down.Because the communication apparatus in the communication machine room is in the state that runs without interruption the whole year basically, and caloric value is very big, therefore, is used for the wind-cooled cold-water machine of communication machine room, generally need the year round cooling operation, operation energy consumption is big, and seasonal energy efficiency ratio (seer) is low.
And; Because this wind-cooled cold-water machine still need start compressor in the winter of cold and carries out work, when outdoor environment is crossed when low, compressor displacement is prone to condensing pressure and crosses low and cause the not enough problem of feed flow; And the thermic load of the communication machine room of this moment is less; Also can cause the frequent start-stop of compressor, this situation not only causes energy resource consumption big, and the service life that can reduce compressor.Therefore, the reliability of this wind-cooled cold-water machine is difficult to be resolved always.
Even dispose condensing pressure control system and be design of condenser Multistage Control, when the wind-cooled cold-water captain phase operates in subzero outdoor environment temperature, bigger hidden danger is arranged still, and can cause the increase of system cost and the increase of control difficulty.
Chinese patent document number CN 101118076A discloses a kind of energy conservation air conditioning equipment and refrigerating method on February 6th, 2008, comprises indoor heat exchanger, outdoor heat exchanger, gas piping, liquid line and refrigeration working medium; Liquid line one end connects said indoor heat exchanger, other end junction chamber external heat exchanger, and gas piping connects the other two ends of indoor heat exchanger and outdoor heat exchanger, forms closed loop; In closed loop, inject refrigeration working medium, evaporation, condensation through refrigeration working medium come to the communication base station room temperature lowering.
This energy conservation air conditioning equipment comes down to rely on fully heat exchange of heat pipe to carry out heat transfer free convection; Its heat exchange efficiency is very low; More can't satisfy the radiating requirements under the hot weather, only can be in the practical application as a servicing unit of conventional compressor cooling air conditioner.And, when need existing bigger indoor/outdoor temperature-difference, this energy conservation air conditioning equipment could drive evaporimeter (indoor heat exchanger) and the heat absorption between the condenser (outdoor heat exchanger)-heat release circulation of heat pipe, and under the most of the time, be actually and can't normally move.Therefore, this energy conservation air conditioning equipment not only energy-saving effect is not obvious, less reliable, and also cost of investment is high, and payoff period is very long.
The energy-saving control method that Chinese patent document number CN101520223A discloses a kind of auxiliary temperature-reducing heat-exchange device of air conditioner on September 2nd, 2009; Auxiliary temperature-reducing heat-exchange device comprises room air blower fan, heat exchanger and outdoor air blower fan; Room air blower fan and outdoor air blower fan drive chamber's inner air and outer air respectively carry out heat exchange in heat exchanger; Exchange the cold of outdoor air to room air; Simultaneously take indoor heat out of, its energy-saving control method may further comprise the steps: a, select to get into energy-conservation heat exchange pattern; B measures indoor air temperature and outside air temperature, the counting chamber internal-external temperature difference; C; Find the auxiliary temperature-reducing heat-exchange device Energy Efficiency Ratio when this indoor/outdoor temperature-difference according to the auxiliary temperature-reducing heat-exchange device temperature difference-Energy Efficiency Ratio figure; Find the air-conditioning equipment Energy Efficiency Ratio when this indoor/outdoor temperature-difference according to the air-conditioning temperature difference-efficiency figure, open or close auxiliary temperature-reducing heat-exchange device.Though this auxiliary temperature-reducing heat-exchange device of air conditioner is designed to forced-convection heat transfer with heat exchange of heat pipe; Its heat exchange efficiency and energy-conservation ability have a certain upgrade; But can't satisfy the refrigeration radiating demand under the high temperature hot weather equally; And only can increase bigger cost of investment for the customer beyond doubt as a kind of auxiliary temperature-reducing device that is independent of outside the compressor cooling air conditioner.In addition, taking up room of this auxiliary temperature-reducing heat-exchange device of air conditioner is also more, for little space situations such as base stations, certain degree of difficulty is installed.In addition; The control method of this auxiliary temperature-reducing heat-exchange device of air conditioner need compare according to the auxiliary temperature-reducing heat-exchange device temperature difference-Energy Efficiency Ratio figure and the air-conditioning temperature difference-efficiency figure, and this just needs to drop into the temperature difference-efficiency figure accurately that a large amount of experiment tests obtains each auxiliary temperature-reducing heat-exchange device and air-conditioning equipment, and experimental cost will be very high; And very complicacy is gone up in control; Need a large amount of program of establishment, the height of controlling cost, reliability is not enough.
Summary of the invention
The object of the invention aims to provide that a kind of energy-saving effect is remarkable, production cost is low, compact conformation, the occupation of land space is little, the simple and reliable band of control cools off naturally wind-cooled cold-water machine and control method thereof, to overcome weak point of the prior art.
A kind of by the design of this purpose with the wind-cooled cold-water machine of cooling naturally; Comprise the compressor, condenser, flow controller and the evaporimeter that connect successively; Condenser is provided with condensation fan, and its architectural feature is also to comprise nature cooling coil and triple valve, and natural cooling coil is arranged on the inlet side of condenser; Triple valve comprises first interface, second interface and the 3rd interface; Triple valve is serially connected on the water inlet pipe of evaporimeter through first interface and second interface, and the water inlet pipe of natural cooling coil communicates with the water inlet pipe of evaporimeter, and the outlet pipe of natural cooling coil communicates with the 3rd interface of triple valve.
Said wind-cooled cold-water machine also comprises chilled water inflow temperature sensor, chilled water leaving water temperature sensor, outdoor environment temperature sensor and controller; Wherein, Chilled water inflow temperature sensor is arranged on the water inlet pipe of evaporimeter; Chilled water leaving water temperature sensor is arranged on the outlet pipe of evaporimeter, and compressor, condensation fan, triple valve, chilled water inflow temperature sensor, chilled water leaving water temperature sensor and outdoor environment temperature sensor are electrically connected with controller respectively.
Said triple valve is that ratio is regulated triple valve or switch triple valve.
The condensing pressure sensor is set on the inlet ductwork of said condenser or the export pipeline, and this condensing pressure sensor is electrically connected with controller.
Said condensation fan is adjustable speed fan or constant speed blower fan.
The water inlet pipe or the outlet pipe of said evaporimeter are provided with water pump, and this water pump is electrically connected with controller.
A kind of control method with the wind-cooled cold-water machine that cools off naturally; It is characterized in that 1) when the detected temperature of outdoor environment temperature sensor is higher than the detected temperature of chilled water inflow temperature sensor; Triple valve is the path blockade that connects the nature cooling coil; Promptly be communicated with triple valve first interface and second interface, close the 3rd interface of triple valve; At this moment, all chilled waters are not flowed through the nature cooling coil and are directly got into evaporimeter, and compressor carries out the control of load or unload all the time according to chilled water inflow temperature sensor or the detected temperature of chilled water leaving water temperature sensor;
2) when the detected temperature of outdoor environment temperature sensor is lower than the detected temperature of chilled water inflow temperature sensor but is higher than compressor temperature fully out of service; Triple valve is opened the path that connects the nature cooling coil; Promptly be communicated with triple valve first interface and the 3rd interface, close second interface of triple valve; Whole chilled waters are flowed through earlier get into evaporimeter again behind the nature cooling coil; Make chilled water preferentially through nature cooling coil radiating and cooling, compressor carries out the control of load or unload all the time according to chilled water inflow temperature sensor or the detected temperature of chilled water leaving water temperature sensor;
3) when the detected temperature of outdoor environment temperature sensor is lower than the complete temperature out of service of compressor but is higher than condensation fan by minimum air quantity operation or complete temperature out of service; Compressor is forced out of service, and condensation fan carries out speed governing or start and stop control according to chilled water inflow temperature sensor or the detected temperature of chilled water leaving water temperature sensor;
4) when the detected temperature of outdoor environment temperature sensor is lower than condensation fan by minimum air quantity operation or complete temperature out of service; Condensation fan is by minimum air quantity operation or out of service fully, and triple valve is regulated control according to chilled water inflow temperature sensor or the detected temperature of chilled water leaving water temperature sensor all the time.
The present invention can be when outdoor environment temperature be lower than chilled water inflow temperature; Freely obtain part or all of cold through natural cooling coil; Reduce even the mechanical refrigeration system of stopping using fully, thereby reduce the operation energy consumption of unit under low temperature environment, energy-saving effect is remarkable; And can avoid outdoor environment to cross compressor displacement is prone to when low high pressure and cross low and feed flow that cause is not enough and problem such as high frequent start and stop.So-called mechanical refrigeration system is combined by compressor, condenser, flow controller, evaporimeter and condensation fan exactly, relies on electric power to realize refrigeration fully.
The present invention has that energy-saving effect is remarkable, operational reliability is high, control method is simple, compact conformation, the characteristics little and that production cost is low that take up room, and is particularly useful for the occasion of year round cooling operations such as communication machine room.
Description of drawings
Fig. 1 is the schematic diagram of one embodiment of the invention.
Among the figure: 1 is compressor, and 2 is condenser, and 3 is flow controller, and 4 is evaporimeter; 5 is condensation fan, and 6 is the nature cooling coil, and 7 is triple valve; 8 is chilled water inflow temperature sensor, and 9 is chilled water leaving water temperature sensor, and 10 is the outdoor environment temperature sensor; 11 is controller, and 12 is water pump, and 13 is the condensing pressure sensor.
The specific embodiment
Below in conjunction with accompanying drawing and embodiment the present invention is further described.
Referring to Fig. 1; The wind-cooled cold-water machine that this band cools off naturally; Comprise the compressor 1, condenser 2, flow controller 3, evaporimeter 4, natural cooling coil 6 and the triple valve 7 that connect successively; Condenser 2 is provided with condensation fan 5, and natural cooling coil 6 is arranged on the inlet side of condenser 2, and the air that condensation fan 5 produces flows the nature cooling coil 6 of flowing through earlier and gets into condenser 2 again.
Triple valve 7 comprises the first interface a, the second interface b and the 3rd interface c; Triple valve 7 is serially connected on the water inlet pipe of evaporimeter 4 through the first interface a and the second interface b; The water inlet pipe of nature cooling coil 6 communicates with the water inlet pipe of evaporimeter 4, and the outlet pipe of natural cooling coil 6 communicates with the 3rd interface of triple valve 7.Distribute the chilled-water flow that gets into nature cooling coil 6 through triple valve 7.
The wind-cooled cold-water machine also comprises chilled water inflow temperature sensor 8, chilled water leaving water temperature sensor 9, outdoor environment temperature sensor 10 and controller 11; Wherein, Chilled water inflow temperature sensor 8 is arranged on the water inlet pipe of evaporimeter 4; Chilled water leaving water temperature sensor 9 is arranged on the outlet pipe of evaporimeter 4, and compressor 1, condensation fan 5, triple valve 7, chilled water inflow temperature sensor 8, chilled water leaving water temperature sensor 9 and outdoor environment temperature sensor 10 are electrically connected with controller 11 respectively.
Triple valve 7 is regulated triple valve or switch triple valve for ratio; It should be noted that selecting for use ratio to regulate triple valve has better regulating effect.
Condensing pressure sensor 13 is set on the inlet ductwork of condenser 2 or the export pipeline, and this condensing pressure sensor 13 is electrically connected with controller 11.
Condensation fan 5 is adjustable speed fan or constant speed blower fan; It should be noted that and select for use adjustable speed fan to have better energy-saving effect.
The water inlet pipe of evaporimeter 4 or outlet pipe are provided with water pump 12, and this water pump 12 is electrically connected with controller 11.
When controlling with the wind-cooled cold-water machine of cooling naturally,
1) when outdoor environment temperature sensor 10 detected temperature is higher than chilled water inflow temperature sensor 8 detected temperature; Triple valve 7 is the path blockade that connects nature cooling coil 6; Promptly be communicated with triple valve 7 the first interface a and the second interface b, close the 3rd interface c of triple valve 7; At this moment; All chilled waters are not flowed through nature cooling coil 6 and are directly got into evaporimeter 4, and compressor 1 carries out the control of load or unload all the time according to chilled water inflow temperature sensor 8 or chilled water leaving water temperature sensor 9 detected temperature.
2) when outdoor environment temperature sensor 10 detected temperature are lower than chilled water inflow temperature sensor 8 detected temperature but are higher than compressor 1 temperature out of service fully; Triple valve 7 is opened the path that connects nature cooling coil 6; Promptly be communicated with triple valve 7 the first interface a and the 3rd interface c, close the second interface b of triple valve 7; Whole chilled waters are flowed through earlier get into evaporimeter 4 again behind the nature cooling coil 6; Make chilled water preferentially through nature cooling coil 6 radiating and coolings, compressor 1 carries out the control of load or unload all the time according to chilled water inflow temperature sensor 8 or chilled water leaving water temperature sensor 9 detected temperature.
Can draw through test, compressor 1 complete temperature out of service generally is littler about 10 ℃ than outdoor environment temperature, and this temperature value can be set and adjust in the pre-set programs of controller.
In the present embodiment, compressor 1 complete temperature out of service can be for littler 10 ℃ than outdoor environment temperature.
3) when outdoor environment temperature sensor 10 detected temperature are lower than compressor 1 complete temperature out of service but are higher than condensation fan 5 by minimum air quantity operation or complete temperature out of service; Compressor 1 is forced out of service, and condensation fan 5 carries out speed governing or start and stop control according to chilled water inflow temperature sensor 8 or chilled water leaving water temperature sensor 9 detected temperature.
Condensation fan 5 generally is to be lower than 20 ℃ of outdoor environment temperatures by the temperature of minimum air quantity operation, at this moment, be applicable to when condensation fan 5 is adjustable speed fan, and adjustable speed fan itself just has minimum air quantity service requirement.
Condensation fan 5 complete temperature out of service generally are to be lower than 25 ℃ of outdoor environment temperatures, at this moment, be applicable to when condensation fan 5 is the constant speed blower fan, and the constant speed blower fan can only be started shooting or shut down.
Condensation fan 5 can be set and adjust in the pre-set programs of controller by the temperature and the condensation fan 5 complete temperature out of service of minimum air quantity operation.
4) when outdoor environment temperature sensor 10 detected temperature are lower than condensation fan 5 by minimum air quantity operation or complete temperature out of service; Condensation fan 5 is by minimum air quantity operation or out of service fully, and triple valve 7 is regulated control according to chilled water inflow temperature sensor 8 or chilled water leaving water temperature sensor 9 detected temperature all the time.
Below explanation respectively:
One, when condensation fan 5 is adjustable speed fan,
1) when chilled water inflow temperature sensor 8 detected temperature be 12 ℃; When outdoor environment temperature sensor 10 detected temperature are higher than 12 ℃; Triple valve 7 is the path blockade that connects nature cooling coil 6; Promptly be communicated with triple valve 7 the first interface a and the second interface b, close the 3rd interface c of triple valve 7; At this moment, all chilled waters are not flowed through nature cooling coil 6 and are directly got into evaporimeter 4, and compressor 1 carries out the control of load or unload all the time according to chilled water inflow temperature sensor 8 or chilled water leaving water temperature sensor 9 detected temperature;
2) when chilled water inflow temperature sensor 8 detected temperature be 12 ℃; Outdoor environment temperature sensor 10 detected temperature are lower than 12 ℃ but be higher than 2 ℃ (at this moment; Compressor 1 temperature=12 out of service fully ℃-10 ℃=2 ℃) time; Triple valve 7 is opened the path that connects nature cooling coil 6; Promptly be communicated with triple valve 7 the first interface a and the 3rd interface c, close the second interface b of triple valve 7; Whole chilled waters are flowed through earlier get into evaporimeter 4 again behind the nature cooling coil 6, make chilled water preferentially through nature cooling coil 6 radiating and coolings, compressor 1 carries out the control of load or unload all the time according to chilled water inflow temperature sensor 8 or chilled water leaving water temperature sensor 9 detected temperature;
3) when chilled water inflow temperature sensor 8 detected temperature be 12 ℃; Outdoor environment temperature sensor 10 detected temperature are lower than 2 ℃ (at this moment; Compressor 1 temperature=12 out of service fully ℃-10 ℃=2 ℃) but be higher than-8 ℃ (at this moment; Condensation fan 5 is by temperature=12 of minimum air quantity operation ℃-20 ℃=-8 ℃) time; Compressor 1 is forced out of service, and condensation fan 5 carries out speed governing or start and stop control according to chilled water inflow temperature sensor 8 or chilled water leaving water temperature sensor 9 detected temperature
4) when chilled water inflow temperature sensor 8 detected temperature be 12 ℃; Outdoor environment temperature sensor 10 detected temperature are lower than-8 ℃ (at this moment; Condensation fan 5 is by temperature=12 of minimum air quantity operation ℃-20 ℃=-8 ℃) time; Condensation fan 5 is by minimum air quantity operation, and triple valve 7 is regulated control according to chilled water inflow temperature sensor 8 or chilled water leaving water temperature sensor 9 detected temperature all the time.
Two, when condensation fan 5 is the constant speed blower fan,
1) when chilled water inflow temperature sensor 8 detected temperature be 12 ℃; Outdoor environment temperature sensor 10 detected temperature are higher than 12 ℃; Triple valve 7 is the path blockade that connects nature cooling coil 6; Promptly be communicated with triple valve 7 the first interface a and the second interface b, close the 3rd interface c of triple valve 7; At this moment, all chilled waters are not flowed through nature cooling coil 6 and are directly got into evaporimeter 4, and compressor 1 carries out the control of load or unload all the time according to chilled water inflow temperature sensor 8 or chilled water leaving water temperature sensor 9 detected temperature;
2) when chilled water inflow temperature sensor 8 detected temperature be 12 ℃; Outdoor environment temperature sensor 10 detected temperature are lower than 12 ℃ but be higher than 2 ℃ (at this moment; Compressor 1 temperature=12 out of service fully ℃-10 ℃=2 ℃) time; Triple valve 7 is opened the path that connects nature cooling coil 6; Promptly be communicated with triple valve 7 the first interface a and the 3rd interface c, close the second interface b of triple valve 7; Whole chilled waters are flowed through earlier get into evaporimeter 4 again behind the nature cooling coil 6, make chilled water preferentially through nature cooling coil 6 radiating and coolings, compressor 1 carries out the control of load or unload all the time according to chilled water inflow temperature sensor 8 or chilled water leaving water temperature sensor 9 detected temperature;
3) when chilled water inflow temperature sensor 8 detected temperature be 12 ℃; Outdoor environment temperature sensor 10 detected temperature are lower than 2 ℃ (at this moment; Compressor 1 temperature=12 out of service fully ℃-10 ℃=2 ℃) but be higher than-13 ℃ (at this moment; Condensation fan 5 temperature=12 out of service fully ℃-25 ℃=-13 ℃) time; Compressor 1 is forced out of service, and condensation fan 5 carries out speed governing or start and stop control according to chilled water inflow temperature sensor 8 or chilled water leaving water temperature sensor 9 detected temperature;
4) when chilled water inflow temperature sensor 8 detected temperature be 12 ℃; Outdoor environment temperature sensor 10 detected temperature are lower than-13 (at this moment; Condensation fan 5 temperature=12 out of service fully ℃-25 ℃=-13 ℃) time; Condensation fan 5 is out of service fully, and triple valve 7 is regulated control according to chilled water inflow temperature sensor 8 or chilled water leaving water temperature sensor 9 detected temperature all the time.

Claims (7)

  1. One kind with naturally the cooling the wind-cooled cold-water machine; Comprise the compressor (1), condenser (2), flow controller (3) and the evaporimeter (4) that connect successively; Condenser (2) is provided with condensation fan (5); It is characterized in that also comprising nature cooling coil (6) and triple valve (7); Nature cooling coil (6) is arranged on the inlet side of condenser (2), and triple valve (7) comprises first interface (a), second interface (b) and the 3rd interface (c), and triple valve (7) is serially connected on the water inlet pipe of evaporimeter (4) through first interface (a) and second interface (b); The water inlet pipe of nature cooling coil (6) communicates with the water inlet pipe of evaporimeter (4), and the outlet pipe of natural cooling coil (6) communicates with the 3rd interface of triple valve (7).
  2. 2. the wind-cooled cold-water machine that band according to claim 1 cools off naturally is characterized in that said wind-cooled cold-water machine also comprises chilled water inflow temperature sensor (8), chilled water leaving water temperature sensor (9), outdoor environment temperature sensor (10) and controller (11); Wherein, Chilled water inflow temperature sensor (8) is arranged on the water inlet pipe of evaporimeter (4); Chilled water leaving water temperature sensor (9) is arranged on the outlet pipe of evaporimeter (4), and compressor (1), condensation fan (5), triple valve (7), chilled water inflow temperature sensor (8), chilled water leaving water temperature sensor (9) and outdoor environment temperature sensor (10) are electrically connected with controller (11) respectively.
  3. 3. the wind-cooled cold-water machine that band according to claim 2 cools off naturally is characterized in that said triple valve (7) is ratio adjusting triple valve or switch triple valve.
  4. 4. the wind-cooled cold-water machine that band according to claim 3 cools off naturally is characterized in that on inlet ductwork or the export pipeline of said condenser (2) condensing pressure sensor (13) being set, and this condensing pressure sensor (13) is electrically connected with controller (11).
  5. 5. the wind-cooled cold-water machine that band according to claim 4 cools off naturally is characterized in that said condensation fan (5) is adjustable speed fan or constant speed blower fan.
  6. 6. the wind-cooled cold-water machine that cools off naturally according to the arbitrary described band of claim 1 to 5 is characterized in that the water inlet pipe of said evaporimeter (4) or outlet pipe are provided with water pump (12), and this water pump (12) is electrically connected with controller (11).
  7. 7. the control method of the wind-cooled cold-water machine that cools off naturally of a band according to claim 1 is characterized in that
    1) when the detected temperature of outdoor environment temperature sensor (10) is higher than the detected temperature of chilled water inflow temperature sensor (8); Triple valve (7) is the path blockade that connects nature cooling coil (6); Promptly be communicated with triple valve (7) first interface (a) and second interface (b), close the 3rd interface (c) of triple valve (7); At this moment; All chilled waters are not flowed through nature cooling coil (6) and are directly got into evaporimeter (4), and compressor (1) carries out the control of load or unload all the time according to chilled water inflow temperature sensor (8) or the detected temperature of chilled water leaving water temperature sensor (9);
    2) when the detected temperature of outdoor environment temperature sensor (10) is lower than the detected temperature of chilled water inflow temperature sensor (8) but is higher than compressor (1) temperature fully out of service; Triple valve (7) is opened the path that connects nature cooling coil (6); Promptly be communicated with triple valve (7) first interface (a) and the 3rd interface (c), close second interface (b) of triple valve (7); Whole chilled waters are flowed through earlier get into evaporimeter (4) again behind the nature cooling coil (6); Make chilled water preferentially through nature cooling coil (6) radiating and cooling, compressor (1) carries out the control of load or unload all the time according to chilled water inflow temperature sensor (8) or the detected temperature of chilled water leaving water temperature sensor (9);
    3) when the detected temperature of outdoor environment temperature sensor (10) is lower than the complete temperature out of service of compressor (1) but is higher than condensation fan (5) by minimum air quantity operation or complete temperature out of service; Compressor (1) is forced out of service, and condensation fan (5) carries out speed governing or start and stop control according to chilled water inflow temperature sensor (8) or the detected temperature of chilled water leaving water temperature sensor (9);
    4) when the detected temperature of outdoor environment temperature sensor (10) is lower than condensation fan (5) by minimum air quantity operation or complete temperature out of service; Condensation fan (5) is by minimum air quantity operation or out of service fully, and triple valve (7) is regulated control according to chilled water inflow temperature sensor (8) or the detected temperature of chilled water leaving water temperature sensor (9) all the time.
CN2012100657014A 2012-01-12 2012-01-12 Air-cooled water chiller with natural cooling function and control method for water chiller Pending CN102589114A (en)

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CN2012100657014A CN102589114A (en) 2012-01-12 2012-01-12 Air-cooled water chiller with natural cooling function and control method for water chiller

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CN103206814A (en) * 2013-04-12 2013-07-17 南京佳力图空调机电有限公司 Supercooling device for magnetic suspension refrigerating system with natural cold source
CN103900221A (en) * 2014-03-03 2014-07-02 广东申菱空调设备有限公司 Natural cooling control system and control method thereof
CN104482614A (en) * 2014-11-17 2015-04-01 广东申菱空调设备有限公司 Double-cold-source sensible heat treatment high-temperature air-conditioning unit and control method thereof
CN104566809A (en) * 2014-12-22 2015-04-29 珠海格力电器股份有限公司 Air conditioner and control method of air conditioner
CN104748421A (en) * 2015-03-10 2015-07-01 广东申菱空调设备有限公司 High-low temperature environment air-cooled chiller unit and control method thereof
CN105371403A (en) * 2015-11-30 2016-03-02 珠海格力电器股份有限公司 Variable-frequency air cooled air conditioning unit and control method
CN106322593A (en) * 2015-07-03 2017-01-11 广州市华德工业有限公司 Evaporative cooling type water chilling unit
CN106482252A (en) * 2015-08-25 2017-03-08 沈阳乐金空调净化工程有限公司 A kind of winter energy reclaims refrigeration system and its refrigerating method
CN106642770A (en) * 2016-11-23 2017-05-10 广东申菱环境系统股份有限公司 Double-cooling water chilling unit and control method thereof
CN107014016A (en) * 2017-04-20 2017-08-04 广东申菱环境系统股份有限公司 A kind of fluorine pump natural cooling evaporating type condensing cooling-water machine and its control method
CN107014014A (en) * 2017-04-20 2017-08-04 广东申菱环境系统股份有限公司 A kind of heat pipe natural cooling evaporating type condensing cooling-water machine and its control method
CN107014013A (en) * 2017-04-20 2017-08-04 广东申菱环境系统股份有限公司 A kind of secondary cycle formula evaporative condenser natural cooling cooling-water machine and its control method
CN107062550A (en) * 2017-04-26 2017-08-18 青岛海尔空调电子有限公司 A kind of water chilling unit control method
CN107192055A (en) * 2017-04-20 2017-09-22 广东申菱环境系统股份有限公司 The cooling-water machine and its control method of a kind of separate modular
US11448429B2 (en) 2016-05-25 2022-09-20 Carrier Corporation Air and water cooled chiller for free cooling applications

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1681191A2 (en) * 2005-01-17 2006-07-19 Truma Gerätetechnik GmbH & Co. KG Ventilation device for recreational vehicles
CN101126529A (en) * 2007-10-08 2008-02-20 阿尔西制冷工程技术(北京)有限公司 Machine hall air conditioner set
CN101520219A (en) * 2009-04-03 2009-09-02 清华大学 All-year cold supply chiller with natural cooling function
JP4651810B2 (en) * 2000-11-29 2011-03-16 高砂熱学工業株式会社 Air conditioning method and air conditioning system for communication equipment room, etc.
CN202470369U (en) * 2012-01-12 2012-10-03 广东申菱空调设备有限公司 Air-cooled water chiller with natural cooling function

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP4651810B2 (en) * 2000-11-29 2011-03-16 高砂熱学工業株式会社 Air conditioning method and air conditioning system for communication equipment room, etc.
EP1681191A2 (en) * 2005-01-17 2006-07-19 Truma Gerätetechnik GmbH & Co. KG Ventilation device for recreational vehicles
CN101126529A (en) * 2007-10-08 2008-02-20 阿尔西制冷工程技术(北京)有限公司 Machine hall air conditioner set
CN101520219A (en) * 2009-04-03 2009-09-02 清华大学 All-year cold supply chiller with natural cooling function
CN202470369U (en) * 2012-01-12 2012-10-03 广东申菱空调设备有限公司 Air-cooled water chiller with natural cooling function

Cited By (25)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103206814B (en) * 2013-04-12 2015-12-23 南京佳力图空调机电有限公司 A kind of supercooling apparatus being applied to natural cooling source magnetic suspension refrigeration system
CN103206814A (en) * 2013-04-12 2013-07-17 南京佳力图空调机电有限公司 Supercooling device for magnetic suspension refrigerating system with natural cold source
CN103175276A (en) * 2013-04-12 2013-06-26 南京佳力图空调机电有限公司 Air-cooling direct-current frequency-conversion magnetic levitation nature cold source water chilling unit
CN103900221A (en) * 2014-03-03 2014-07-02 广东申菱空调设备有限公司 Natural cooling control system and control method thereof
CN103900221B (en) * 2014-03-03 2016-08-17 广东申菱环境系统股份有限公司 A kind of natural cooling control system and control method thereof
CN104482614B (en) * 2014-11-17 2017-07-25 广东申菱环境系统股份有限公司 A kind of pair of low-temperature receiver sensible heat processing high-temperature air conditioner unit and its control method
CN104482614A (en) * 2014-11-17 2015-04-01 广东申菱空调设备有限公司 Double-cold-source sensible heat treatment high-temperature air-conditioning unit and control method thereof
CN104566809A (en) * 2014-12-22 2015-04-29 珠海格力电器股份有限公司 Air conditioner and control method of air conditioner
CN104566809B (en) * 2014-12-22 2018-04-13 珠海格力电器股份有限公司 The control method of air-conditioning and air-conditioning
CN104748421A (en) * 2015-03-10 2015-07-01 广东申菱空调设备有限公司 High-low temperature environment air-cooled chiller unit and control method thereof
CN106322593B (en) * 2015-07-03 2022-11-15 广州市华德工业有限公司 Evaporative cooling type water chilling unit
CN106322593A (en) * 2015-07-03 2017-01-11 广州市华德工业有限公司 Evaporative cooling type water chilling unit
CN106482252A (en) * 2015-08-25 2017-03-08 沈阳乐金空调净化工程有限公司 A kind of winter energy reclaims refrigeration system and its refrigerating method
CN105371403B (en) * 2015-11-30 2018-01-26 珠海格力电器股份有限公司 Frequency conversion air-cooled formula air-conditioner set and control method
CN105371403A (en) * 2015-11-30 2016-03-02 珠海格力电器股份有限公司 Variable-frequency air cooled air conditioning unit and control method
US11448429B2 (en) 2016-05-25 2022-09-20 Carrier Corporation Air and water cooled chiller for free cooling applications
CN106642770A (en) * 2016-11-23 2017-05-10 广东申菱环境系统股份有限公司 Double-cooling water chilling unit and control method thereof
CN107014014A (en) * 2017-04-20 2017-08-04 广东申菱环境系统股份有限公司 A kind of heat pipe natural cooling evaporating type condensing cooling-water machine and its control method
CN107014013A (en) * 2017-04-20 2017-08-04 广东申菱环境系统股份有限公司 A kind of secondary cycle formula evaporative condenser natural cooling cooling-water machine and its control method
CN107192055A (en) * 2017-04-20 2017-09-22 广东申菱环境系统股份有限公司 The cooling-water machine and its control method of a kind of separate modular
CN107014016A (en) * 2017-04-20 2017-08-04 广东申菱环境系统股份有限公司 A kind of fluorine pump natural cooling evaporating type condensing cooling-water machine and its control method
CN107014016B (en) * 2017-04-20 2022-11-08 广东申菱环境系统股份有限公司 Fluorine pump natural cooling evaporation type condensation water chiller and control method thereof
CN107014014B (en) * 2017-04-20 2022-12-16 广东申菱环境系统股份有限公司 Heat pipe natural cooling evaporation type condensation water chiller and control method thereof
CN107062550A (en) * 2017-04-26 2017-08-18 青岛海尔空调电子有限公司 A kind of water chilling unit control method
CN107062550B (en) * 2017-04-26 2020-07-07 青岛海尔空调电子有限公司 Control method of water chilling unit

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Application publication date: 20120718