CN206771829U - A kind of double loop water chilling unit control system - Google Patents

A kind of double loop water chilling unit control system Download PDF

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Publication number
CN206771829U
CN206771829U CN201720425352.0U CN201720425352U CN206771829U CN 206771829 U CN206771829 U CN 206771829U CN 201720425352 U CN201720425352 U CN 201720425352U CN 206771829 U CN206771829 U CN 206771829U
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China
Prior art keywords
water
temperature
pressure
pipeline
low
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Expired - Fee Related
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CN201720425352.0U
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Chinese (zh)
Inventor
刘晋峰
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Guangzhou Xiang Jie refrigeration equipment Co., Ltd.
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Guangzhou Xiang Jie Instrument Co Ltd
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Priority to CN201720425352.0U priority Critical patent/CN206771829U/en
Application granted granted Critical
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Expired - Fee Related legal-status Critical Current
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Abstract

The utility model discloses a kind of double loop water chilling unit control system, for equipment cooling, including water tank and by pipeline by compressor, evaporator, condenser, controller, server, the compression refrigeration cycle that choke valve connects, the evaporator is located in main water box, the temperature-compensating pipeline for leading to deputy tank is connected on the outlet pipeline of low temperature water circulation supply circuit, the first temperature sensor is provided with the deputy tank, the controller respectively with server, first temperature sensor is connected with control valve, the controller is also associated with environment temperature sensor.Water tank is divided into main water box and deputy tank by the utility model, two circulating water loops are connected in two water tanks respectively, control valve is controlled to open when deputy tank temperature is too high, the output water of low temperature is inputted by temperature-compensating pipeline to be cooled down into deputy tank to high temperature circulation water.

Description

A kind of double loop water chilling unit control system
Technical field
It the utility model is related to refrigerating field, more particularly to a kind of double loop water chilling unit control system.
Background technology
Water-cooled cooling water machine is to utilize the principle for compressing refrigeration to circulating water cooling, and makes the low-temperature circulating water and sky of output Adjust unit or carry out the mode of heat exchange with cold terminal come work.Sometimes there are two user terminals in some scenarios, Need to provide two kinds of discrepant recirculated waters of temperature, otherwise existing way is to configure two sets of units to meet needs, but should The equipment cost that method needs is higher;It is using the scheme disclosed in CN 201463385U, is returned in low-temperature circuit and high temperature Set scale integrates triple valve between road so that the backwater of the relative low temperature in low-temperature circuit can directly enter high-temperature circuit In, but which is difficult to temperature and accurately controlled, the temperature of the demand of high temperature user terminal is not readily available guarantor Barrier.
Utility model content
In order to solve the above-mentioned technical problem, the purpose of this utility model is to provide one kind and is advantageous to ensure high temperature user terminal The double loop water chilling unit control system of demand cold.
Technical solution adopted in the utility model is:
A kind of double loop water chilling unit control system, including water tank and by pipeline by compressor, evaporator, condensation The compression refrigeration cycle that device, choke valve connect, it is characterised in that:Also include controller and server, the water tank Main water box and deputy tank are divided into, the evaporator is located in main water box, and main water box is circumscribed with low temperature water circulation supply circuit, Deputy tank is circumscribed with high temperature water circulation supply circuit, is connected on the outlet pipeline of low temperature water circulation supply circuit and leads to deputy tank Temperature-compensating pipeline, temperature-compensating pipeline are provided with control valve, the first temperature sensor, the control are provided with the deputy tank Device is connected with server, the first temperature sensor and control valve respectively, and the controller is also associated with environment temperature sensor.
As further improvement of the utility model, second temperature sensor, second temperature are provided with the main water box Degree sensor is connected with controller.
As further improvement of the utility model, liquid level sensor, the level sensing are additionally provided with the deputy tank Device is connected with controller.
As further improvement of the utility model, water at low temperature is connected on the outlet pipeline of low temperature water circulation supply circuit Pump, temperature-compensating pipeline are connected on the export pipeline of low temperature water pump, and the compression refrigeration cycle is provided with pressure maintenance valve, The pressure maintenance valve is located on the export pipeline of compressor and pressure maintenance valve is communicated with the interface of suction port of compressor pipeline.
As further improvement of the utility model, the main water box is additionally provided with filling pipe, and filling pipe is provided with filter.
As further improvement of the utility model, the pipeline and high temperature water circulation of the low temperature water circulation supply circuit supply Pipeline outer wall to loop is coated with heat-insulation layer.
As further improvement of the utility model, the compression refrigeration cycle is recycled back to for two-stage compression refrigeration Road.
As further improvement of the utility model, the choke valve includes first throttle valve and second throttle, described Compressor includes low pressure compressor and high pressure compressor, low pressure compressor, high pressure compressor, condenser, first throttle valve, second Choke valve, evaporator are sequentially communicated by pipeline so as to form two-stage compression refrigeration circulation loop.
As further improvement of the utility model, the two-stage compression refrigeration circulation loop also includes cooling during rolling and filled Put, the intercooler unit has low-pressure inlet, low tension outlet, high pressure entry and high-pressure outlet, and low-pressure inlet leads to low pressure Compressor, low tension outlet lead to high pressure compressor, and high pressure entry leads to first throttle valve, and high-pressure outlet leads to second throttle.
As further improvement of the utility model, the intercooler unit includes heat exchanger and stainless steel, high pressure Outlet and high pressure entry are located on heat exchanger, and low-pressure inlet and low tension outlet are located in stainless steel, heat exchanger and stainless steel Connected by pipeline.
The beneficial effects of the utility model are:
Water tank is divided into main water box and deputy tank by the utility model, connects two circulation loops in two water tanks respectively, and And the first temperature sensor is set in deputy tank, control control valve to open when deputy tank temperature is too high, the output water of low temperature leads to Excess temperature compensation conduit inputs to be cooled down into deputy tank to high temperature circulation water, until the water body of deputy tank reaches suitable temperature Degree.And the utility model can gather main water in real time by the first temperature sensor, second temperature sensor and liquid level sensor Data in case and deputy tank, so as to accurately control water temperature.
Brief description of the drawings
Specific embodiment of the present utility model is described further below in conjunction with the accompanying drawings:
Fig. 1 is a kind of control principle block diagram of double loop water chilling unit control system of the utility model;
Fig. 2 is the signal of handpiece Water Chilling Units first embodiment in a kind of double loop water chilling unit control system of the utility model Figure;
Fig. 3 is the signal of handpiece Water Chilling Units second embodiment in a kind of double loop water chilling unit control system of the utility model Figure;
Fig. 4 is the signal of handpiece Water Chilling Units 3rd embodiment in a kind of double loop water chilling unit control system of the utility model Figure.
Embodiment
With reference to figure 1, a kind of double loop water chilling unit control system of the utility model, including water tank and by pipeline will press The compression refrigeration cycle that contracting machine, evaporator 1, condenser 2, choke valve connect, it is characterised in that:Also include controller And server, the water tank are divided into main water box 3 and deputy tank 4, the evaporator 1 is located in main water box 3, outside main water box 3 Low temperature water circulation supply circuit is connected to, deputy tank 4 is circumscribed with high temperature water circulation supply circuit, and low temperature water circulation supply circuit goes out The temperature-compensating pipeline 5 for leading to deputy tank 4 is connected in water lines, the first temperature sensor 19 and liquid are provided with the deputy tank 4 Level sensor, the main water box 3 is interior to be provided with second temperature sensor 21, and temperature-compensating pipeline 5 is provided with control valve 6, the control Device processed is connected with server, the first temperature sensor 19, second temperature sensor 21, liquid level sensor and control valve 6 respectively, The controller is also associated with environment temperature sensor.
Referring to figs. 2 to the double loop handpiece Water Chilling Units shown in Fig. 4, including water tank and compression refrigeration cycle.Compression system SAPMAC method loop at least has compressor, evaporator 1, condenser 2, choke valve and the pipeline for connecting these parts, Compression refrigeration cycle belongs to the conventional techniques of this area, is not described here in detail.
Water tank is separated into main water box 3 and deputy tank 4 by one piece of vertical dividing plate.Above-mentioned evaporator 1 is located at main water box 3 It is interior, the recirculated water in main water box 3 can be freezed.Main water box 3 is circumscribed with low temperature water circulation supply circuit, due to as low-temperature receiver Evaporator 1 is located in main water box 3, and it is relatively low that the water at low temperature after refrigeration by low temperature water circulation supply circuit is delivered to demand temperature User terminal, main water box 3 is back to after then absorbing heat, is cooled again by evaporator 1.
Above-mentioned deputy tank 4 is circumscribed with high temperature water circulation supply circuit, and the higher user terminal of demand temperature is by deputy tank 4 In the higher recirculated water of temperature carry out cooling.Water body in deputy tank 4 due to continuous heat absorption and temperature can be raised constantly, be Its relatively low water temperature is kept, embodiment is cooled by temperature-compensating pipeline 5 to the water body in deputy tank 4.
Described temperature-compensating pipeline 5 has arrival end and output end, its arrival end connection low temperature water circulation supply circuit Outlet pipeline, its port of export connection deputy tank 4 simultaneously lead to the inner chamber of deputy tank 4, the first TEMP is additionally provided with deputy tank 4 Device 19, temperature-compensating pipeline 5 are provided with control valve 6.
Thus, evaporator 1 constantly cools to the water body of main water box 3, treats that the temperature sensor 19 of deputy tank 4 detects water temperature After setting value, instruction control control valve 6 is sent by controller and opened, in the middle part of the outlet pipeline of low temperature water circulation supply circuit The water at low temperature divided is delivered to the water mixing in deputy tank 4 with deputy tank 4 by temperature-compensating pipeline 5, so as in deputy tank 4 Water body(High temperature circulation water)Cooled.The process of said temperature compensation is until temperature sensor 19 detects deputy tank 4 Water reaches suitable temperature value.
During temperature-compensating, the water level of deputy tank 4 can be raised constantly, therefore, position higher on dividing plate can be with A spout hole 20 is opened up, main water box 3 can be automatically flowed into when the water level of deputy tank 4 reaches spout hole 20.
Above-mentioned control valve 6 can be magnetic valve;Second temperature sensor 21 also is provided with above-mentioned main water box 3, according to The refrigerating capacity of refrigeration cycle is entirely compressed in the water temperature control of main water box 3.
Because the part that the water temperature in deputy tank 4 is the low-temperature circulating water exported by main water box 3 is cooled, simultaneously Ensure that, as the demand for needing cold more sufficient user terminal, the volume of above-mentioned main water box 3 is more than the volume of deputy tank 4, typically For more than twice.
It is further preferred that low temperature water pump 7, temperature-compensating pipeline are connected on the outlet pipeline of low temperature water circulation supply circuit 5 are connected on the export pipeline of low temperature water pump 7, and the water return pipeline of low temperature water circulation supply circuit is additionally provided with water flow switch 22.High temperature High-temperature water pump 23 is also connected on the outlet pipeline of water circulation supply circuit simultaneously.
It is further preferred that main water box 3 is additionally provided with and filling pipe (not shown), for whole handpiece Water Chilling Units replenishment cycles Water, filling pipe are provided with filter, and preliminary or depth filtering is carried out to the recirculated water entered in unit, avoid incrustation or Impurity is on influence caused by each part of unit.
It is further preferred that the pipeline of low temperature water circulation supply circuit and the pipeline outer wall of high temperature water circulation supply circuit are equal It is coated with and heat-insulation layer (not shown), loss of the cold in pipeline is reduced, so as to save the energy to a certain extent.
In first embodiment shown in Fig. 2, compressor, choke valve only have separate unit, single, such as the compressor 24 in Fig. 2 With choke valve 25, it is single-stage refrigeration loop thus to compress refrigeration cycle, and handpiece Water Chilling Units disclosure satisfy that general air-conditioner set, use The demand of family terminal.
In second embodiment and 3rd embodiment as shown in Figure 3 and Figure 4, compression refrigeration cycle is Two-stage Compression Refrigeration cycle, the demand of deep refrigerating can be applied to.
In two-stage compression refrigeration circulation loop, choke valve has two, including first throttle valve 9 and second throttle 10, Compressor has two, including low pressure compressor 11 and high pressure compressor 12.Low pressure compressor 11, high pressure compressor 12, condenser 2nd, first throttle valve 9, second throttle 10, evaporator 1 are sequentially communicated by pipeline is recycled back to so as to form two-stage compression refrigeration Road.
With reference to figure 3, two-stage compression refrigeration circulation loop also includes intercooler unit, and intercooler unit is a centre Cooler 26, it has low-pressure inlet 13, low tension outlet 14, high pressure entry 15 and high-pressure outlet 16, and low-pressure inlet 13 leads to low Compressor 11 is pressed, low tension outlet 14 leads to high pressure compressor 12, and high pressure entry 15 leads to first throttle valve 9, and high-pressure outlet 16 is logical To second throttle 10.
During work, the steam of evaporator 1 is sucked by low pressure compressor 11, is compressed to intermediate pressure and by low-pressure inlet 13 Into intercooler, the dry saturated steam come out with intercooler 26 is mixed and exported from low tension outlet 14;High pressure afterwards Compressor 12 sucks mixed gas, compressed to entering condenser 2 after condensing pressure;Condensed high pressure refrigerant liquid is passed through Cooled down again from high pressure entry 15 into intercooler 26 after first throttle valve 9;Exported afterwards from high-pressure outlet 16 through Two choke valves 10 enter the heat absorption evaporation of evaporator 1.
With reference to the 3rd embodiment of figure 4, the construction of intercooler unit is with the difference of second embodiment.3rd In embodiment, intercooler unit includes heat exchanger 17 and stainless steel 18, heat exchanger 17 can be plate type heat exchanger 17 or Other kinds of heat exchanger 17.High-pressure outlet 16 and high pressure entry 15 are located on heat exchanger 17, low-pressure inlet 13 and low tension outlet 14 in stainless steel 18, and heat exchanger 17 is connected with stainless steel 18 by pipeline.
In the embodiment, before stainless steel 18 is arranged at high pressure compressor 12, by the use of heat exchanger 17 as intercooler, from The gas that heat exchanger 17 and low pressure compressor 11 are discharged can mix in stainless steel 18 to be sucked by high pressure compressor 12 again, is protected Gas is demonstrate,proved(Refrigerant)In the stainless steel 18, it is interior well mixed in pipeline.
On the basis of above example, compress and be additionally provided with pressure maintenance valve 8 on refrigeration cycle.As shown in figure 1, pressure Power maintenance valve 8 is located on the export pipeline of compressor 24 and pressure maintenance valve 8 is communicated with the interface of suction port of compressor pipeline.When After compressor 24 is started shooting, can enough height pressure differences of resume in a short time, reach compressor minimum safe fuel feeding differential pressure requirements, Ensure that compressor will not produce catastrophe failure because mistake oil or fuel feeding are bad, reach the mesh for the reliability for improving machine set system 's.
As shown in Figure 3 and Figure 4, in second embodiment and 3rd embodiment, pressure maintenance valve 8 is arranged at low pressure compressor On 11 export pipeline, and the entrance pipe of the orifice low pressure compressor 11 of pressure maintenance valve 8.Certainly, high pressure compressor 12 correspondence position can also set corresponding pressure maintenance valve 8, to reach identical effect.
Above-described handpiece Water Chilling Units can be also used in dual temperature cooling system, and the dual temperature cooling system includes two users Terminal, each two kinds of different temperature of user terminal demand, the low temperature water circulation in above-mentioned double loop handpiece Water Chilling Units are supplied back to The relatively low user terminal of road connection requirement temperature, the higher user terminal of high temperature water circulation supply circuit connection requirement temperature.On The user terminal stated can be the equipment such as air-conditioning.
Above is preferably implement to be illustrated to of the present utility model, but the utility model is created and is not limited to institute State embodiment, those skilled in the art can also make a variety of etc. on the premise of without prejudice to the utility model spirit With deformation or replace, these equivalent deformations or replacement are all contained in the application claim limited range.

Claims (10)

1. a kind of double loop water chilling unit control system, including water tank and by pipeline by compressor, evaporator, condenser, The compression refrigeration cycle that choke valve connects, it is characterised in that:Also include controller and server, the water tank is divided Main water box and deputy tank are divided into, the evaporator is located in main water box, and main water box is circumscribed with low temperature water circulation supply circuit, secondary water Case is circumscribed with high temperature water circulation supply circuit, and the temperature for leading to deputy tank is connected on the outlet pipeline of low temperature water circulation supply circuit Compensation conduit, temperature-compensating pipeline are provided with control valve, and the first temperature sensor, the controller point are provided with the deputy tank It is not connected with server, the first temperature sensor and control valve, the controller is also associated with environment temperature sensor.
A kind of 2. double loop water chilling unit control system according to claim 1, it is characterised in that:Set in the main water box There is second temperature sensor, the second temperature sensor is connected with controller.
A kind of 3. double loop water chilling unit control system according to claim 1, it is characterised in that:In the deputy tank also Provided with liquid level sensor, the liquid level sensor is connected with controller.
A kind of 4. double loop water chilling unit control system according to claim 1, it is characterised in that:Low temperature water circulation supplies Low temperature water pump is connected on the outlet pipeline in loop, temperature-compensating pipeline is connected on the export pipeline of low temperature water pump, the compression system SAPMAC method loop is provided with pressure maintenance valve, and the pressure maintenance valve is located on the export pipeline of compressor and pressure maintenance valve is set There is the interface of connection suction port of compressor pipeline.
A kind of 5. double loop water chilling unit control system according to claim 1, it is characterised in that:The main water box is also set There is filling pipe, filling pipe is provided with filter.
A kind of 6. double loop water chilling unit control system according to claim 1, it is characterised in that:The low temperature water circulation The pipeline of supply circuit and the pipeline outer wall of high temperature water circulation supply circuit are coated with heat-insulation layer.
A kind of 7. double loop water chilling unit control system according to claim any one of 1-6, it is characterised in that:The pressure Contracting refrigeration cycle is two-stage compression refrigeration circulation loop.
A kind of 8. double loop water chilling unit control system according to claim 7, it is characterised in that:The choke valve includes First throttle valve and second throttle, the compressor include low pressure compressor and high pressure compressor, low pressure compressor, high pressure pressure Contracting machine, condenser, first throttle valve, second throttle, evaporator are sequentially communicated by pipeline so as to form two-stage compression refrigeration Circulation loop.
A kind of 9. double loop water chilling unit control system according to claim 8, it is characterised in that:The Two-stage Compression system SAPMAC method loop also includes intercooler unit, the intercooler unit have low-pressure inlet, low tension outlet, high pressure entry and High-pressure outlet, low-pressure inlet lead to low pressure compressor, and low tension outlet leads to high pressure compressor, and high pressure entry leads to first throttle Valve, high-pressure outlet lead to second throttle.
A kind of 10. double loop water chilling unit control system according to claim 9, it is characterised in that:The cooling during rolling Device includes heat exchanger and stainless steel, and high-pressure outlet and high pressure entry are located on heat exchanger, low-pressure inlet and low tension outlet position In in stainless steel, heat exchanger is connected with stainless steel by pipeline.
CN201720425352.0U 2017-04-21 2017-04-21 A kind of double loop water chilling unit control system Expired - Fee Related CN206771829U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201720425352.0U CN206771829U (en) 2017-04-21 2017-04-21 A kind of double loop water chilling unit control system

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201720425352.0U CN206771829U (en) 2017-04-21 2017-04-21 A kind of double loop water chilling unit control system

Publications (1)

Publication Number Publication Date
CN206771829U true CN206771829U (en) 2017-12-19

Family

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Family Applications (1)

Application Number Title Priority Date Filing Date
CN201720425352.0U Expired - Fee Related CN206771829U (en) 2017-04-21 2017-04-21 A kind of double loop water chilling unit control system

Country Status (1)

Country Link
CN (1) CN206771829U (en)

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GR01 Patent grant
GR01 Patent grant
CP03 Change of name, title or address

Address after: 510700 self compiled 4 708 rooms, No. 20, Guan Da Road, Whampoa District, Guangzhou, Guangdong.

Patentee after: Guangzhou Xiang Jie refrigeration equipment Co., Ltd.

Address before: 510665 Dong Hong business building, No. 4 Tong Dong Road, Zhongshan Road, Guangzhou, Guangdong, B520-1, Tianhe District

Patentee before: Guangzhou Xiang Jie Instrument Co., Ltd.

CP03 Change of name, title or address
CF01 Termination of patent right due to non-payment of annual fee

Granted publication date: 20171219

Termination date: 20200421

CF01 Termination of patent right due to non-payment of annual fee