CN204006860U - A kind of liquid cooling source unit with accurate control temperature - Google Patents
A kind of liquid cooling source unit with accurate control temperature Download PDFInfo
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- CN204006860U CN204006860U CN201420398143.8U CN201420398143U CN204006860U CN 204006860 U CN204006860 U CN 204006860U CN 201420398143 U CN201420398143 U CN 201420398143U CN 204006860 U CN204006860 U CN 204006860U
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- evaporimeter
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Abstract
The utility model provides a kind of liquid cooling source unit with accurate control temperature, comprises compressor, condenser, evaporimeter, heat-producing device, and described evaporimeter liquid outlet is connected with compressor inlet; Described exhaust outlet of compressor is connected with condenser air inlet, and is provided with electric control valve between evaporimeter; Described condenser liquid outlet is connected with evaporimeter inlet, between condenser and evaporimeter, is provided with throttling arrangement; Described heat-producing device liquid outlet is connected with water tank inlet; Described water tank liquid outlet is connected with solution feed pump inlet; Described solution feed pump liquid outlet is connected with another inlet of evaporimeter; Another liquid outlet of described evaporimeter is connected with heat-producing device inlet, and between be provided with temperature sensor, temperature sensor and electric control valve are connected in system control device.The utility model, by electric control valve and temperature sensor are set, is not increasing the equipment such as extra heating, makes refrigeration system have the object that has realized high accuracy control temperature under thermic load situation of change.
Description
Technical field
The utility model relates to technical field of refrigeration equipment, is specifically related to a kind of liquid cooling source unit with accurate control temperature.
Background technology
The high-precision equipments such as laser instrument have strict requirement to the coolant temperature for its cooling, and the cooling fluid of different temperatures can cause the significantly variation of its service behaviour.Growing along with precision equipments such as laser instruments, also more and more higher to the requirement of accurately controlling for liquid temp for the liquid cooling source of its cooling, and therefore the thermic load that uses side heat-producing device real-time change often is accurately controlled and is had certain difficulty for liquid temp.
Ensure to use comparatively stationary temperature of side, existing measure mainly contains three kinds:
The one, refrigeration system does not adjust, and carrys out balanced system cooling system and exceed the part refrigerating capacity that uses side thermic load installing firing equipment additional by side.The method advantage is that refrigeration is the independent systems of two covers with heating, can ensure to use the temperature of side very constant, and temperature-controlled precision is high; Shortcoming is to have added extra firing equipment, has caused the complexity of equipment itself, and causes the waste of the energy.
The 2nd, according to factors such as the height of use side temperature, the start and stop of controlling refrigeration system reach and use side temperature to change within the scope of one.The method advantage is that control mode is simply easy to realize, and shortcoming is that temperature control precision is lower, and feed flow temperature fluctuation is larger, and frequent start-stop can cause the compressor reduction in service life.
The 3rd, according to the refrigerating capacity that regulates refrigeration system with the variation of side thermic load, to ensure using side compared with stationary temperature.The measure that realizes of the method mainly contains and regulates two kinds of the inner unloadings of compressor air-discharging amount and refrigeration system: regulate the mode of compressor air-discharging amount mainly to comprise the Digital Scroll Technology in guiding valve unloading and the screw compressor of unloading, helical-lobe compressor of compressor variable frequency, piston compressor cylinder body, these modes all in use all have certain limitation: frequency conversion can not be used at the special occasions of considering Electro Magnetic Compatibility, and use initial stage input and the later maintenance cost of frequency converter higher; The unloading of piston compressor cylinder body is progression unloading, and temperature-controlled precision is not high; And the helical-lobe compressor refrigerating capacity on market with guiding valve offloading functions is often very large, in mini system, cannot use, digital scroll compressor only has the product that large factory that indivedual strength is strong provides to have these functions, the product of most of producer does not possess regulating power, uses and has certain limitation.
The inner unloading of refrigeration system is to adopt bypass capacity adjusting valve to realize, and the entrance of valve connects compressor exhaust pipe, and the outlet of valve connects compressor return air; In the time that thermic load reduces, the drop of suction pressure of compressor bypass capacity adjusting valve when setting value is opened, and the higher gaseous refrigerant of temperature that compressor is discharged is back to suction side, for compensated part thermic load; Automatically to regulate and do not need extra setting by pressure of inspiration(Pi) with the unlatching that the advantage of bypass capacity adjusting valve is this valve, but the unlatching that shortcoming is this valve can not manually be intervened, its operating point can not dynamically be adjusted, cause in the time that larger variation occurs the requirement control temperature that uses side, its energy bypass amount can not meet the demands, and finally causes temperature-controlled precision to occur relatively large deviation.
Utility model content
The utility model is for the deficiencies in the prior art, a kind of liquid cooling source unit with accurate control temperature is provided, effectively solving refrigeration system exists and under thermic load situation of change, controls the deficiency that temperature accuracy is not high, can thermic load on a large scale (0 ~ 100%) electrodeless situation of change under, still can ensure the refrigeration system of high temperature-controlled precision.
For reaching above-mentioned effect, the utility model provides a kind of liquid cooling source unit with accurate control temperature, comprises compressor, condenser, evaporimeter, heat-producing device, and described evaporimeter liquid outlet is connected with compressor inlet; The exhaust outlet of described compressor is connected with the air inlet of condenser; Between the exhaust outlet of described compressor and the inlet of evaporimeter, be also provided with electric control valve; The liquid outlet of described condenser is connected with the inlet of evaporimeter.
Further, between described condenser and evaporimeter, be provided with throttling arrangement.
Such scheme forms refrigeration system of the present utility model.
The liquid outlet of described heat-producing device is connected with the inlet of water tank; The liquid outlet of described water tank is connected with the inlet of solution feed pump; The liquid outlet of described solution feed pump is connected with another inlet of evaporimeter; Another liquid outlet of described evaporimeter is connected with the inlet of heat-producing device.
Further, between described evaporimeter and heat-producing device, be provided with temperature sensor.
Such scheme forms coolant circulation system of the present utility model.
Described electric control valve and temperature sensor are connected in system control device.
In the control of refrigeration system, adopt suitable control method according to the difference with between side temperature and design temperature and with the parameters such as side rate of temperature change control electric control valve between exhaust outlet of compressor and evaporator inlet keying or open size, realize gaseous refrigerant higher exhaust outlet of compressor temperature out is directly entered to evaporimeter, for evaporimeter provides a thermic load except using side heat-producing device; This extra heat load motorized adjustment in real time, realizes total thermic load and refrigerating capacity and matches simultaneously, ensures to use the very high temperature-controlled precision of side.
The beneficial effects of the utility model:
1, there is the object that has realized high accuracy control temperature under thermic load situation of change in the utility model in refrigeration system.
2, the utility model does not need to add extra firing equipment, does not need to regulate by capacity the equipment such as compressor and bypass capacity adjusting valve to realize high accuracy control temperature.
3, the utility model, by electric control valve is set, has been realized the real-time electronic control of extra heat load, finally realizes total thermic load and refrigerating capacity and matches, and ensures as using side that the liquid temp that supplies of accurate control is provided.
4, the utility model has been realized the relatively judgement of cooling fluid actual temperature and industrial temperature setting value by set temperature sensor, then the open frequency to electric control valve or open degree judge by Based Intelligent Control.
Brief description of the drawings
Below in conjunction with the drawings and specific embodiments, the utility model is described in further detail.
Fig. 1 is the utility model structural representation;
In figure: 1-compressor, 2-condenser, 3-electric control valve, 4-throttling arrangement, 5-system control device, 6-temperature sensor, 7-evaporimeter, 8-solution feed pump, 9-water tank, 10-heat-producing device.
Detailed description of the invention
As shown in Figure 1, a kind of liquid cooling source unit with accurate control temperature, comprises compressor 1, condenser 2, evaporimeter 7, heat-producing device 10, and described evaporimeter 7 liquid outlets are connected with compressor 1 inlet; The exhaust outlet of described compressor 1 is connected with the air inlet of condenser 2; Between the inlet of the exhaust outlet of described compressor 1 and evaporimeter 7, be provided with electric control valve 3, realize the real-time electronic control of extra heat load by the adjusting of electric control valve 3, finally realize total thermic load and refrigerating capacity and match, ensure as using side that the liquid temp that supplies of accurate control is provided; The liquid outlet of described condenser 2 is connected with the inlet of evaporimeter 7; Between described condenser 2 and evaporimeter 7, be provided with throttling arrangement 4.
The liquid outlet of described heat-producing device 10 is connected with the inlet of water tank 9; The liquid outlet of described water tank 9 is connected with the inlet of solution feed pump 8; The liquid outlet of described solution feed pump 8 is connected with another inlet of evaporimeter 7; Another liquid outlet of described evaporimeter 7 is connected with the inlet of heat-producing device 10; Between described evaporimeter 7 and heat-producing device 10, be provided with temperature sensor 6, for detecting in real time the liquid temp that supplies of sending into heat-producing device 10.
Described electric control valve 3 and temperature sensor 6 are connected in system control device 5.
The concrete control flow of this unit is as follows:
Cooling fluid actual temperature and feed flow desired temperature that refrigeration system control device 5 records temperature sensor 6 compare judgement, control open frequency or the open degree of electric control valve 3 by intelligent control method, make to send into as to evaporimeter 7 from the higher cold-producing medium of temperature of exhaust outlet of compressor output, for evaporimeter 7 provides a thermic load except using side heat-producing device 10, this thermic load is directly proportional to electric control valve 3 open frequency or open degree simultaneously, can regulate in real time control, the basis for estimation of this intelligent control method is to use difference between side actual temperature and design temperature and the variation tendency of this difference.
Above-described scheme is only that the optimal way of this patent is described; not the scope of this patent is limited; do not departing under the prerequisite of this patent design spirit; various distortion and improvement that those of ordinary skill in the art make the technical scheme of this patent, all should fall in the definite protection domain of the claims in the present invention book.
Claims (1)
1. a liquid cooling source unit with accurate control temperature, comprises compressor, condenser, evaporimeter, heat-producing device, it is characterized in that: between described exhaust outlet of compressor and evaporimeter inlet, be provided with electric control valve; Described heat-producing device liquid outlet is connected with water tank inlet; Described water tank liquid outlet is connected with solution feed pump inlet; Described solution feed pump inlet is connected with an inlet of evaporimeter; A liquid outlet of described evaporimeter is connected with the inlet of heat-producing device, between be provided with temperature sensor.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420398143.8U CN204006860U (en) | 2014-07-18 | 2014-07-18 | A kind of liquid cooling source unit with accurate control temperature |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420398143.8U CN204006860U (en) | 2014-07-18 | 2014-07-18 | A kind of liquid cooling source unit with accurate control temperature |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204006860U true CN204006860U (en) | 2014-12-10 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420398143.8U Expired - Fee Related CN204006860U (en) | 2014-07-18 | 2014-07-18 | A kind of liquid cooling source unit with accurate control temperature |
Country Status (1)
| Country | Link |
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| CN (1) | CN204006860U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106196665A (en) * | 2016-08-23 | 2016-12-07 | 合肥天鹅制冷科技有限公司 | Can the liquid low-temperature receiver unit of precise control of temperature |
| CN107401864A (en) * | 2017-09-08 | 2017-11-28 | 珠海格力电器股份有限公司 | Antifreeze cooling system and antifreeze cooling control method |
-
2014
- 2014-07-18 CN CN201420398143.8U patent/CN204006860U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106196665A (en) * | 2016-08-23 | 2016-12-07 | 合肥天鹅制冷科技有限公司 | Can the liquid low-temperature receiver unit of precise control of temperature |
| CN107401864A (en) * | 2017-09-08 | 2017-11-28 | 珠海格力电器股份有限公司 | Antifreeze cooling system and antifreeze cooling control method |
| CN107401864B (en) * | 2017-09-08 | 2023-09-19 | 珠海格力电器股份有限公司 | Anti-freezing cooling system and anti-freezing cooling control method |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20141210 Termination date: 20190718 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |