CN101694329A - Dual-working condition heat pump cold hot water machine unit of parallel evaporator - Google Patents
Dual-working condition heat pump cold hot water machine unit of parallel evaporator Download PDFInfo
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- CN101694329A CN101694329A CN200910197104A CN200910197104A CN101694329A CN 101694329 A CN101694329 A CN 101694329A CN 200910197104 A CN200910197104 A CN 200910197104A CN 200910197104 A CN200910197104 A CN 200910197104A CN 101694329 A CN101694329 A CN 101694329A
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- evaporator
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Abstract
The invention discloses a dual-working condition heat pump cold hot water machine unit of a parallel evaporator. The machine unit compresses a circulation loop consisting of a compressor, a condenser, an evaporator and a throttle valve, wherein the evaporator comprises a first evaporator and a second evaporator that are connected with the compressor and the condenser in parallel; the throttle valve comprises a first throttle valve and a second throttle valve, the first throttle valve is arranged between the first evaporator and the second evaporator, the second throttle valve is arranged between the second evaporator and the condenser, and the circulation loop is controlled by the first and the second throttle valves. As the two evaporators are connected in parallel and the flow rate and pressure of the two evaporators are controlled and regulated by the throttle valves between the evaporators to realize the supply of refrigerating water with different temperatures, the machine unit has the advantages of effectively improving the stability of exergy loss coefficient, realizing the simplification of a pipeline system and simultaneously being applicable to an individual independent cold hot source system.
Description
Technical field
The present invention relates to a kind of energy-conservation central air-conditioning, relate to a kind of parallel evaporator dual-working condition heat pump cold hot water unit specifically.
Background technology
At present, the radiation VMC is widely used, because radiation and new wind need the chilled water of different temperatures, existing method generally is to adopt plate type heat exchanger to prepare high temperature refrigerant water, plate type heat exchanger is a kind of new type high efficient heat exchanger that is formed by a series of sheet metal closed assemblies with certain bellows-shaped, form the thin rectangular shape passage between the various plates, carry out exchange heat by half sheet.Because adopt plate type heat exchanger that fire is increased with decreasing coefficient, it is very complicated that pipe-line system also becomes, and is not suitable for branch family independence cold and heat source system.
The mode of existing preparation high temperature refrigerant water realizes by mixed water system in addition, as the Chinese patent notification number is the utility model patent of CN201184641Y, this patent documentation discloses a kind of mixed water system, comprise thermal source outlet pipe and thermal source return pipe, condensate correcting-distribuing device water inlet pipe and condensate correcting-distribuing device return pipe, condensate correcting-distribuing device return pipe and thermal source return pipe are connected, and between condensate correcting-distribuing device water inlet pipe and the thermal source outlet pipe electric T-shaped valve are installed.Another termination of electric T-shaped valve connects condensate correcting-distribuing device return pipe and thermal source return pipe.Described mixed water system also comprises the control module that links to each other with described electric T-shaped valve, is used to control the action of described electric T-shaped valve; The pressure switch that links to each other with described control module is set on the described thermal source outlet pipe, is used for detected force value is sent to described control module; The electric two-way valve that links to each other with described control module is set on the described thermal source return pipe, is used for opening and closing according to the control signal of described control module.The same existence of this structure makes fire increase with decreasing coefficient easily, and there is complexity equally in pipe-line system and is not suitable for the defective of branch family independence cold and heat source system.
Summary of the invention
The technical problem to be solved in the present invention provides a kind of fire of can stablizing with decreasing coefficient, pipe-line system simply and be applicable to the parallel evaporator dual-working condition heat pump cold hot water unit of branch family independence cold and heat source system.
The present invention solves above-mentioned technical problem by following technical proposals: a kind of parallel evaporator dual-working condition heat pump cold hot water unit, comprise the closed circuit that constitutes by compressor, condenser, evaporimeter and choke valve, it is characterized in that, described evaporimeter comprises first evaporimeter and second evaporimeter, and described first evaporimeter and second evaporimeter link together by parallel way and compressor and condenser; Described choke valve comprises the first throttle valve and second choke valve, between described first evaporimeter and condenser, be provided with the first throttle valve, also be provided with second choke valve between described second evaporimeter and condenser, described closed circuit is by first, second throttle valve control.
Optimal way, the cooling medium of described condenser are air.
Optimal way, the cooling medium of described condenser are water.
Optimal way, described compressor are semi-hermetic screw compressor.
The invention has the beneficial effects as follows: because this structure adopts two evaporimeter parallel waies to connect, between its evaporimeter by throttle valve control and regulate the flow of two evaporimeters and pressure to realize providing the chilled water of different temperatures, can improve fire so effectively with the stability of decreasing coefficient, realize that pipe-line system also goes for the advantage of branch family independence cold and heat source system when oversimplifying.
Description of drawings
Fig. 1 is a structural representation of the present invention.
The specific embodiment
Provide preferred embodiment of the present invention below in conjunction with accompanying drawing, to describe technical scheme of the present invention in detail.
With reference to figure 1, the present invention includes the closed circuit that is made of compressor 30, condenser 40, the first evaporimeter 10a, the second evaporimeter 10b, first throttle valve 20a and the second choke valve 20b, the first evaporimeter 10a and the second evaporimeter 10b link together by parallel way and compressor 30 and condenser 40; Be provided with first throttle valve 20a between the first evaporimeter 10a and condenser 40, also be provided with the second choke valve 20b between the second evaporimeter 10b and condenser 40, described whole circulation loop is controlled by the first throttle valve 20a and the second choke valve 20b.Wherein, described first throttle valve 20a controls flow and the pressure of the first evaporimeter 10a, the described second choke valve 20b controls flow and the pressure of the second evaporimeter 10b, realizes that the first evaporimeter 10a and the second evaporimeter 10b provide the chilled water of different temperatures.The cooling medium of selecting for use of described condenser 40 can be air or water.Described compressor 30 is a semi-hermetic screw compressor, equally also can select for use the compressor of other form all should belong to protection scope of the present invention.Adopt the mode of the first evaporimeter 10a and the second evaporimeter 10b parallel connection can realize summer in winter two kinds of operational modes, promptly winter first evaporimeter 10a can prepare 30 ℃ of hot water, the second evaporimeter 10b can prepare 35 ℃ of hot water, evaporimeter 10a can prepare 7 ℃ of cold water in summer first, the second evaporimeter 10b can prepare 18 ℃ of cold water, and described hot water or cold water are to indoor end.
When this unit carries out refrigeration work, liquid refrigerant absorbs after the object heat that is cooled in the first evaporimeter 10a, sucked by compressor 30 after being vaporized into the steam of low-temp low-pressure, enter condenser 40 after being compressed into the steam of high pressure-temperature, in condenser 40, be condensed into highly pressurised liquid to the cooling medium heat release, through first throttle valve 20a throttling is that the cold-producing medium of low-pressure low-temperature enters second evaporimeter 10b heat absorption vaporization once more, reaches the purpose of circularly cooling.Like this, cold-producing medium is finished a kind of refrigeration cycle through pervaporation, compression, condensation, four basic processes of throttling in system.Optional water of above-mentioned cooling medium or air.
When this unit heats work, compressor 30 is constantly extracted refrigerant vapour out from the second evaporimeter 10b and the first evaporimeter 10a, through compressor 30 compressions, preparation is transformed into high pressure high temperature vapor by the low-temp low-pressure steam, the condensation in condenser 40 of high-temperature high-pressure refrigerant steam, emit big calorimetric and absorbed, thereby reach the purpose that heats by system water.Be condensed the high pressure liquid refrigerant of device 40 condensations through first throttle valve 20a and the second choke valve 20b throttling, step-down, change the low pressure refrigerant liquid into, low pressure refrigerant is extracted by compressor 30 once more at the first evaporimeter 10a and second evaporimeter 10b low pressure refrigeration steam, heats circulation thereby form one.
The above is all so that the present invention conveniently to be described, in the spiritual category that does not break away from the present invention's creation, the various simple covert and modification that those skilled in the art did of being familiar with this technology still belongs to protection scope of the present invention.
Claims (4)
1. parallel evaporator dual-working condition heat pump cold hot water unit, comprise the closed circuit that constitutes by compressor, condenser, evaporimeter and choke valve, it is characterized in that: described evaporimeter comprises first evaporimeter and second evaporimeter, and described first evaporimeter and second evaporimeter link together by parallel way and compressor and condenser; Described choke valve comprises the first throttle valve and second choke valve, between described first evaporimeter and condenser, be provided with the first throttle valve, also be provided with second choke valve between described second evaporimeter and condenser, described closed circuit is by first, second throttle valve control.
2. parallel evaporator dual-working condition heat pump cold hot water unit according to claim 1 is characterized in that: the cooling medium of described condenser is an air.
3. parallel evaporator dual-working condition heat pump cold hot water unit according to claim 1 is characterized in that: the cooling medium of described condenser is a water.
4. parallel evaporator dual-working condition heat pump cold hot water unit according to claim 1 is characterized in that: described compressor is a semi-hermetic screw compressor.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200910197104A CN101694329A (en) | 2009-10-13 | 2009-10-13 | Dual-working condition heat pump cold hot water machine unit of parallel evaporator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200910197104A CN101694329A (en) | 2009-10-13 | 2009-10-13 | Dual-working condition heat pump cold hot water machine unit of parallel evaporator |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN101694329A true CN101694329A (en) | 2010-04-14 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN200910197104A Pending CN101694329A (en) | 2009-10-13 | 2009-10-13 | Dual-working condition heat pump cold hot water machine unit of parallel evaporator |
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Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103307825A (en) * | 2012-03-07 | 2013-09-18 | 刘雄 | Control method of heat pump refrigeration equipment |
| CN105928234A (en) * | 2016-07-06 | 2016-09-07 | 上海境元能源科技有限公司 | Double-water-temperature cold and hot water unit |
| CN106482218A (en) * | 2016-07-29 | 2017-03-08 | 广东美的制冷设备有限公司 | Single cold type air-conditioner and control method |
| CN106839482A (en) * | 2016-12-27 | 2017-06-13 | 广东技术师范学院 | Cooling and warming binary cycle system, method and automotive air-conditioning system |
| CN107990610A (en) * | 2018-01-18 | 2018-05-04 | 河南中瑞制冷科技有限公司 | A kind of industry water temperature double-control system |
| CN110500818A (en) * | 2019-07-15 | 2019-11-26 | 青岛海尔空调器有限总公司 | Air conditioner and its control method |
| CN112665207A (en) * | 2020-12-30 | 2021-04-16 | 南京三尼电器设备有限公司 | Double-water-temperature water outlet variable-frequency air source heat pump system |
| CN114302630A (en) * | 2022-01-14 | 2022-04-08 | 珠海格力电器股份有限公司 | Cabinet air conditioner |
-
2009
- 2009-10-13 CN CN200910197104A patent/CN101694329A/en active Pending
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103307825A (en) * | 2012-03-07 | 2013-09-18 | 刘雄 | Control method of heat pump refrigeration equipment |
| CN105928234A (en) * | 2016-07-06 | 2016-09-07 | 上海境元能源科技有限公司 | Double-water-temperature cold and hot water unit |
| CN106482218A (en) * | 2016-07-29 | 2017-03-08 | 广东美的制冷设备有限公司 | Single cold type air-conditioner and control method |
| CN106839482A (en) * | 2016-12-27 | 2017-06-13 | 广东技术师范学院 | Cooling and warming binary cycle system, method and automotive air-conditioning system |
| CN107990610A (en) * | 2018-01-18 | 2018-05-04 | 河南中瑞制冷科技有限公司 | A kind of industry water temperature double-control system |
| CN110500818A (en) * | 2019-07-15 | 2019-11-26 | 青岛海尔空调器有限总公司 | Air conditioner and its control method |
| CN110500818B (en) * | 2019-07-15 | 2021-10-29 | 青岛海尔空调器有限总公司 | Air conditioner and control method thereof |
| CN112665207A (en) * | 2020-12-30 | 2021-04-16 | 南京三尼电器设备有限公司 | Double-water-temperature water outlet variable-frequency air source heat pump system |
| CN114302630A (en) * | 2022-01-14 | 2022-04-08 | 珠海格力电器股份有限公司 | Cabinet air conditioner |
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Application publication date: 20100414 |