CN105158003A - Energy-saving steam jet refrigeration unit test device - Google Patents
Energy-saving steam jet refrigeration unit test device Download PDFInfo
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- CN105158003A CN105158003A CN201510590728.9A CN201510590728A CN105158003A CN 105158003 A CN105158003 A CN 105158003A CN 201510590728 A CN201510590728 A CN 201510590728A CN 105158003 A CN105158003 A CN 105158003A
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Abstract
The invention discloses an energy-saving steam jet refrigeration unit test device. The device comprises a refrigerant water loop, a cooling water loop and a load loop. The refrigerant water loop maintains constant output water temperature and demand amount of refrigerant water for simulation users; the cooling water loop consumes heat generated by working steam jet condensation; and the load loop controls mixing amount of low-temperature refrigerant water and high-temperature cooling water in a temperature adjusting water tank through a PID electrical adjusting valve, so that test working condition of a refrigerating unit can be adjusted and stabled in a manner of the minimum energy input, energy-saving test is realized, and more than 40 % of energy is saved. The refrigerant water loop adopts independent temperature and flow control loops, thereby effectively preventing coupled oscillation between water temperature and flow two test loops of a conventional test device, and greatly improving the stability and control precision of the test device.
Description
Technical field
The invention belongs to refrigeration unit technical field of measurement and test, relate to a kind of energy-saving steam ejector refrigeration unit proving installation particularly.
Background technology
Along with the fast development of China's economy, energy day is becoming tight, and energy-conserving and environment-protective have become the hot subject of each area research.Steam jet refrigeration can utilize low-grade heat source to realize refrigeration cycle, as the low temperature exhaust heat in sun power, underground heat and commercial production all can as its drive energy, this technology more and more receives the concern of various circles of society, its measuring technology is also continued to optimize along with the development of ejector refrigeration technology, constantly updates.Steam-ejector refrigerating machine group conventional test methodologies is required to be the depletion load source that independent water system and corresponding energy proportioning are prepared in chilled(cooling) water return (CWR) and chilled water loop, existence investment is high, equipment is huge, the problems such as the test duration is long, and stability and precision are all poor, and substantially increase test energy consumption.
Therefore, need to provide a kind of energy-saving steam ejector refrigeration unit proving installation to solve the problems of conventional test methodologies existence.
Summary of the invention
For the deficiencies in the prior art, the object of this invention is to provide a kind of energy-saving steam ejector refrigeration unit proving installation, achieve saving energy test, improve measuring accuracy.
A kind of energy-saving steam ejector refrigeration unit proving installation, described proving installation comprises chilled water loop, chilled(cooling) water return (CWR) and load circuit, described chilled water loop comprises the tested unit evaporator, refrigerant water pump P1, the heat interchanger that connect successively and is connected to temperature adjustment water pump P2 and the electric control valve V2 at described heat interchanger two ends, tested unit evaporator is communicated with heat interchanger by pipeline by described refrigerant water pump P1, and described temperature adjustment water pump P2 controls heat interchanger heat exchange amount 3. by electric control valve V2 regulating water flow; Described chilled(cooling) water return (CWR) comprises the tested train condenser and cooling-water pump P3 that connect successively, and tested train condenser is communicated with temperature adjustment water tank by pipeline by described cooling-water pump P3; Described load circuit comprises low-temperature receiver, steam regulating valve V1, stop valve V3, V5, V6, drain valve V4 and temperature adjustment water tank, and described low-temperature receiver adds by variable valve V1 steam regulation the proportioning that heat controls cold and hot load input energy; Described V2, P2, P3, V3, V1 are connected with described temperature adjustment water tank.
Preferably, described chilled water loop also comprises chilled water flowmeter M1, described chilled water flowmeter M1 for measure tested handpiece Water Chilling Units evaporator in chilled water flow.
Preferably, described electric control valve V2 regulates from the high-temperature cooling water of temperature adjustment water tank and the heat exchange flow of low temperature chilled water.
Preferably, described chilled(cooling) water return (CWR) also comprises cooling water flow gauge M2, and described cooling water flow gauge M2 is for measuring the condenser inner cooling water flow of tested handpiece Water Chilling Units.
Preferably, described load circuit also comprises water circulating pump P4, and the cold that described low-temperature receiver produces is inputted described temperature adjustment water tank by described water circulating pump P4, offset loop dump energy.
Preferably, described variable valve V1 steam regulation adds the input of heat, and the condensate water that described stop valve V3, drain valve V4 are formed after ensureing steam heating water discharges loop automatically.
Preferably, the cold that described low-temperature receiver produces is directly inputted in described chilled(cooling) water return (CWR) by described stop valve V5.
Preferably, described chilled water loop and described chilled(cooling) water return (CWR) are provided with temperature sensor.
Technical scheme of the present invention has following beneficial effect:
A kind of energy-saving steam ejector refrigeration unit proving installation provided by the invention, this proving installation makes full use of the cold and hot balance characteristic of refrigeration unit self, the cold that unit produces is carried out energy regenerating, offset the heat of condensation that some vapor condensation produces, thus decrease the input of external loading energy, realize saving energy test; Adopt independently temperature and flow control circuit simultaneously, efficiently avoid the coupled oscillations between water temperature and flow two test loop in traditional test device, substantially increase stability and the control accuracy of proving installation, its temperature control precision reaches ± 0.1 DEG C, and flow control accuracy reaches ± and 0.4%.
Accompanying drawing explanation
Below by drawings and Examples, technical scheme of the present invention is described in further detail.
Fig. 1 is the circuit theory figure of energy-saving steam ejector refrigeration unit proving installation of the present invention;
Fig. 2 is the discharge control principle schematic diagram of energy-saving steam ejector refrigeration unit proving installation of the present invention;
Fig. 3 is the temperature control principle schematic diagram of energy-saving steam ejector refrigeration unit proving installation of the present invention;
Description of reference numerals: 1-tested unit evaporator 2-tested train condenser 3-heat interchanger 4-temperature adjustment water tank 5-low-temperature receiver
Embodiment
In order to have a clear understanding of technical scheme of the present invention, its detailed structure will be proposed in the following description.Obviously, the concrete execution of the embodiment of the present invention also not enough specific details being limited to those skilled in the art and haveing the knack of.The preferred embodiments of the present invention are described in detail as follows, and except these embodiments described in detail, can also have other embodiments.
Below in conjunction with drawings and Examples, the present invention is described in further details.
A kind of energy-saving steam ejector refrigeration unit proving installation, it mainly comprises chilled water loop, chilled(cooling) water return (CWR) and load circuit.It is characterized in that proving installation utilizes the cold and hot balance characteristic of steam jet refrigeration refrigeration unit self, the cold produce unit and steam-condensation heat are cancelled out each other, and reduce extra power input, reduce test energy consumption.Chilled water loop mainly comprises tested unit evaporator 1, refrigerant water pump P1, temperature adjustment water pump P2, heat interchanger 3 and electric control valve V2; Chilled(cooling) water return (CWR) mainly comprises tested train condenser 2, cooling-water pump P3; Load circuit mainly comprises low-temperature receiver 5, steam regulating valve V1, stop valve V3, V5, V6, drain valve V4 and temperature adjustment water tank 4.Tested unit evaporator 1 is communicated with heat interchanger 3 by pipeline by described refrigerant water pump P1, ensures chilled water flow independent operating environment in tested unit evaporator 1.Described temperature adjustment water pump P2 controls the heat exchange amount of heat interchanger 3 by electric control valve V2 regulating water flow, realizes chilled water temperature independent loop and controls.Tested train condenser 2 is communicated with temperature adjustment water tank 4 by pipeline by described cooling-water pump P3, ensures tested train condenser 2 inner cooling water independent operating environment.Described low-temperature receiver 5 adds by variable valve V1 steam regulation the proportioning that heat controls cold and hot load input energy, ensures the automatic adjustment of measurement condition.
Wherein, chilled water loop is provided with chilled water flowmeter M1, described chilled water flowmeter M1 for measure tested handpiece Water Chilling Units evaporator in chilled water flow; Electric control valve V2 regulates from the high-temperature cooling water of temperature adjustment water tank 4 and the heat exchange flow of low temperature chilled water, realizes the control of chilled water multi-state temperature spot; Described heat interchanger 3 achieves the combination of two-opening type water loop independent operating and energy exchange, efficiently avoid the coupled oscillations between flow and water temperature two test loops, improves measuring stability and control accuracy.
Described chilled(cooling) water return (CWR) is provided with cooling water flow gauge M2, and described cooling water flow gauge M2 is for measuring the condenser inner cooling water flow of tested handpiece Water Chilling Units; The cold input temperature adjustment water tank 4 that low-temperature receiver 5 produces by described water circulating pump P4, offset loop dump energy; Described steam regulating valve V1, stop valve V3, drain valve V4, described variable valve V1 steam regulation adds the input of heat, realizes the control of chilled water multi-state temperature spot.The condensate water that described stop valve V3, drain valve V4 are formed after ensureing steam heating water discharges loop automatically.
Described temperature adjustment water tank 4 is load low-temperature receiver 5 and inputs external energy and provide mixing place, simultaneously provides energy exchange place for low temperature chilled water and high-temperature cooling water blending again, achieves the energy regenerating of chilled water, greatly reduce test energy consumption; The cold that low-temperature receiver 5 produces directly can be inputted chilled(cooling) water return (CWR) by described stop valve V5, reduces cooling water temperature fast, improves the response speed of proving installation.
Set temperature sensor on described chilled water loop and chilled(cooling) water return (CWR), Real-time Collection loop water temperature changes, feed back to PID controller and adjust electric control valve V1, V2 aperture in time, realize the automatic control of water temperature, provide robotization condition for analog subscriber carries out unit dynamic test.
Shown in chilled water loop embodiment composition graphs 1, tested unit evaporator 1 is communicated with refrigerant water pump P1, heat interchanger 3, chilled water flowmeter M1; Temperature adjustment water tank 4 is communicated with temperature adjustment water pump P2, heat interchanger 3, electric control valve V2, forms chilled water loop.
Shown in chilled(cooling) water return (CWR) embodiment composition graphs 1, tested train condenser is communicated with cooling-water pump P2, temperature adjustment water tank 4, cooling water flow gauge M2, forms chilled(cooling) water return (CWR).
Shown in load circuit embodiment composition graphs 1, low-temperature receiver 5 forms load low-temperature receiver loop by water circulating pump P4, stop valve V6 and temperature adjustment water tank 4, is directly communicated with chilled(cooling) water return (CWR) by stop valve V5, improves proving installation response speed; Steam regulating valve V1, stop valve V3, drain valve V4 form cooling water temperature regulating loop by temperature adjustment water tank 4 internal heating coils.
Shown in discharge control section embodiment composition graphs 1, Fig. 2, chilled water and cooling water flow control all to adopt frequency conversion flow control technique.UT351-01 controller is adopted to send Setting signal to frequency converter, frequency converter adjustment pump rotary speed exports certain flow, actual flow signal is gathered by electromagnetic flowmeter, feed back to controller correction Setting signal again to send, PLC programmed control is revised repeatedly, until reach flow needed for chilled water, chilled water.
Shown in water temperature control section embodiment composition graphs 1, Fig. 3, chilled water is identical with cooler-water temperature control mode, just control medium is different, and chilled water controls the through-current capacity from temperature adjustment water tank 4 high-temperature cooling water, and chilled water is the through-current capacity controlling heating steam.Control mode still adopts PLC to control, and controller controls the aperture of electric control valve, and the through-current capacity of adjustment loop medium, changes heat interchange degree, thus realize the fixing quantity of chilled water, cooler-water temperature.
Chilled water loop in the present embodiment is the combination being achieved two-opening type water loop independent operating and energy exchange by heat interchanger; Chilled(cooling) water return (CWR) is directly communicated with temperature adjustment water tank to form the control that loop realizes flow and water temperature; Load circuit is the input and the chilled water energy regenerating that are achieved load cold by temperature adjustment water tank, described device control program is by temperature sensor or flowmeter, signal feedback to PID controller, is controlled corresponding topworks and completes adjustment in time by real-time measurement.
A kind of energy-saving steam ejector refrigeration unit proving installation that the present invention proposes, make full use of the cold and hot balance characteristic of refrigeration unit self, the cold that unit produces is carried out energy regenerating, offset the heat of condensation that some vapor condensation produces, thus decrease the input of external loading energy, realize saving energy test; Adopt independently temperature and flow control circuit simultaneously, efficiently avoid the coupled oscillations between water temperature and flow two test loop in traditional test device, substantially increase stability and the control accuracy of proving installation, its temperature control precision reaches ± 0.1 DEG C, and flow control accuracy reaches ± and 0.4%.
Finally should be noted that: above embodiment is only in order to illustrate that technical scheme of the present invention is not intended to limit; although with reference to above-described embodiment to invention has been detailed description; those of ordinary skill in the field still can modify to the specific embodiment of the present invention or equivalent replacement; these do not depart from any amendment of spirit and scope of the invention or equivalent replacement, are all applying within the claims awaited the reply.
Claims (8)
1. an energy-saving steam ejector refrigeration unit proving installation, described proving installation comprises chilled water loop, chilled(cooling) water return (CWR) and load circuit, it is characterized in that, described chilled water loop comprises the tested unit evaporator (1) connected successively, refrigerant water pump P1, heat interchanger (3) and be connected to temperature adjustment water pump P2 and the electric control valve V2 at described heat interchanger (3) two ends, tested unit evaporator (1) is communicated with heat interchanger (3) by pipeline by described refrigerant water pump P1, described temperature adjustment water pump P2 controls heat interchanger heat exchange amount 3. by electric control valve V2 regulating water flow, described chilled(cooling) water return (CWR) comprises the tested train condenser (2) and cooling-water pump P3 that connect successively, and tested train condenser (2) is communicated with temperature adjustment water tank (4) by pipeline by described cooling-water pump P3, described load circuit comprises low-temperature receiver (5), steam regulating valve V1, stop valve V3, V5, V6, drain valve V4 and temperature adjustment water tank (4), described low-temperature receiver (5) adds by variable valve V1 steam regulation the proportioning that heat controls cold and hot load input energy, described V2, P2, P3, V3, V1 are connected with described temperature adjustment water tank.
2. energy-saving steam ejector refrigeration unit proving installation according to claim 1, it is characterized in that, described chilled water loop also comprises chilled water flowmeter M1, described chilled water flowmeter M1 for measure tested handpiece Water Chilling Units evaporator in chilled water flow.
3. the energy-saving steam ejector refrigeration unit proving installation according to claim 1 or 2 any one claim, it is characterized in that, described electric control valve V2 regulates from the high-temperature cooling water of temperature adjustment water tank (4) and the heat exchange flow of low temperature chilled water.
4. energy-saving steam ejector refrigeration unit proving installation according to claim 1 and 2, it is characterized in that, described chilled(cooling) water return (CWR) also comprises cooling water flow gauge M2, and described cooling water flow gauge M2 is for measuring the condenser inner cooling water flow of tested handpiece Water Chilling Units.
5. energy-saving steam ejector refrigeration unit proving installation according to claim 1, it is characterized in that, described load circuit also comprises water circulating pump P4, the cold that described low-temperature receiver (5) produces is inputted described temperature adjustment water tank (4) by described water circulating pump P4, offset loop dump energy.
6. energy-saving steam ejector refrigeration unit proving installation according to claim 1, it is characterized in that, described variable valve V1 steam regulation adds the input of heat, and the condensate water that described stop valve V3, drain valve V4 are formed after ensureing steam heating water discharges loop automatically.
7. energy-saving steam ejector refrigeration unit proving installation according to claim 1, it is characterized in that, the cold that described low-temperature receiver (5) produces is directly inputted in described chilled(cooling) water return (CWR) by described stop valve V5.
8. the energy-saving steam ejector refrigeration unit proving installation described in any one claim according to claim 1,2,4,5,6,7, is characterized in that, described chilled water loop and described chilled(cooling) water return (CWR) are provided with temperature sensor.
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| CN201510590728.9A CN105158003A (en) | 2015-09-17 | 2015-09-17 | Energy-saving steam jet refrigeration unit test device |
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| CN201510590728.9A CN105158003A (en) | 2015-09-17 | 2015-09-17 | Energy-saving steam jet refrigeration unit test device |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN105973631A (en) * | 2016-07-14 | 2016-09-28 | 昆山台佳机电有限公司 | Integrated evaporation cooled cold water set performance test bench |
| CN109210836A (en) * | 2017-06-29 | 2019-01-15 | 上海微电子装备（集团）股份有限公司 | Liquid temperature controlling device and method |
| CN113720873A (en) * | 2021-08-27 | 2021-11-30 | 安徽万瑞冷电科技有限公司 | Testing system for refrigerant transmission coupling device |
| CN115451609A (en) * | 2022-09-14 | 2022-12-09 | 合肥通用机械研究院有限公司 | Condensation heat recovery system and method during refrigeration evaluation of water chilling unit |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN105973631A (en) * | 2016-07-14 | 2016-09-28 | 昆山台佳机电有限公司 | Integrated evaporation cooled cold water set performance test bench |
| CN105973631B (en) * | 2016-07-14 | 2018-10-30 | 昆山台佳机电有限公司 | All-in-one evaporative cooling handpiece Water Chilling Units property test platform |
| CN109210836A (en) * | 2017-06-29 | 2019-01-15 | 上海微电子装备（集团）股份有限公司 | Liquid temperature controlling device and method |
| CN113720873A (en) * | 2021-08-27 | 2021-11-30 | 安徽万瑞冷电科技有限公司 | Testing system for refrigerant transmission coupling device |
| CN115451609A (en) * | 2022-09-14 | 2022-12-09 | 合肥通用机械研究院有限公司 | Condensation heat recovery system and method during refrigeration evaluation of water chilling unit |
| CN115451609B (en) * | 2022-09-14 | 2023-09-22 | 合肥通用机械研究院有限公司 | Condensation heat recovery system and recovery method for refrigeration evaluation of water chilling unit |
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Application publication date: 20151216 |