CN206420190U - Modified frequency conversion air supply heat pump cryogenic system - Google Patents
Modified frequency conversion air supply heat pump cryogenic system Download PDFInfo
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- CN206420190U CN206420190U CN201720073102.5U CN201720073102U CN206420190U CN 206420190 U CN206420190 U CN 206420190U CN 201720073102 U CN201720073102 U CN 201720073102U CN 206420190 U CN206420190 U CN 206420190U
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- valve
- electric expansion
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- heat exchanger
- expansion valve
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Abstract
The utility model discloses modified frequency conversion air supply heat pump cryogenic system, including compressor；Compressor connects the first valve interface of vapour liquid separator and four-way valve by pipeline；Also connected after second valve orifice of the vapour liquid separator and four-way valve with fluorine heat exchanger, first electric expansion valve is connected with fluorine heat exchanger；Two-way reservoir connection fluorine heat exchanger and hydro-thermal parallel operation；The second electric expansion valve is additionally provided between the pipeline that fluorine heat exchanger is connected with two-way reservoir；Hydro-thermal parallel operation upper end is connected with water pump；The refrigerant of primary flow path is because releasing partial heat, the refrigerant for not being condensed into liquid all is all condensed into liquid, improve degree of supercooling, when the refrigerant of high supercooling degree flows through main throttling electric expansion valve, due to no bubble, throttling can be balanced very much, and temperature can be lower, temperature difference with air is just bigger, more heats can be thus absorbed from air, so as to improve heating capacity.
Description
Technical field
The utility model belongs to high energy efficiency technical field of heat pumps, and in particular to modified frequency conversion air supply heat pump cryogenic system.
Background technology
Frequency conversion heat pump due to its can dynamic regulation heating capacity, precision can be provided and extensively liked up to 0.1 DEG C of thermal source by consumer
Love.
But usual heat pump frequency-changeable compressor does not have air injection enthalpy-increasing interface, when environment temperature is less than -15 DEG C, often because of evaporation
Pressure is too low and causes compressor than the scope that can bear more than compressor, and it is exceeded and easily burn pressure to occur delivery temperature
Contracting machine.In order to reduce delivery temperature, generally connect a hydrojet capillary in exhaust outlet of compressor and directly arrive compressor return air pipe.
Referring to Figure of description 1, controlled, usual magnetic valve 12 is closed, when delivery temperature is exceeded, opened with magnetic valve 12
Magnetic valve 12, starts hydrojet, increases back pressure, compression ratio is reduced, so that delivery temperature is reduced, when delivery temperature is reduced to conjunction
Just when when, turn off magnetic valve 12, stop hydrojet, thus expand and use scope.
Utility model content
The purpose of this utility model is to provide modified frequency conversion air supply heat pump cryogenic system, to solve above-mentioned background technology
The problem of middle proposition.
To achieve the above object, the utility model provides following technical scheme：Modified frequency conversion air supply heat pump cryogenic system,
Including compressor；Compressor connects the first valve interface of vapour liquid separator and four-way valve by pipeline；The vapour liquid separator and
Also connected after second valve orifice of four-way valve with fluorine heat exchanger, evaporator is arranged on the first electric expansion valve of connection and four-way
On the pipeline of 3rd valve interface of valve；Evaporator side is provided with blower fan；First electric expansion valve is connected with fluorine heat exchanger；
Two-way reservoir connection fluorine heat exchanger and hydro-thermal parallel operation；Is additionally provided between the pipeline that fluorine heat exchanger is connected with two-way reservoir
Two electric expansion valves；Hydro-thermal parallel operation upper end is connected with water pump；Fourth valve orifice of the hydro-thermal parallel operation also with four-way valve.
Further, the hydro-thermal parallel operation bottom is provided with water inlet.
Further, the water pump is provided with delivery port.
Further, throttle electric expansion valve based on first electric expansion valve；Second electric expansion valve is hydrojet electronics
Expansion valve.
Further, the two-way reservoir uses bidirectional high-pressure reservoir.
Compared with prior art, the beneficial effects of the utility model are：
The utility model, because the refrigerant of hydrojet loop absorbs heat, the gas for becoming low-temp low-pressure returns to compression
Machine, rather than directly hydrojet return to compressor into liquid, therefore the delivery temperature of compressor can be stablized in setting value, will not be because of liquid
Body, which returns to compressor, to be caused delivery temperature drastically to change and causes compressor to be unable to stable operation, and hydrojet coolant quantity can basis
Delivery temperature, the degree of superheat of hydrojet evaporation automatically adjusts required coolant quantity, so that it is guaranteed that compressor can be more than -25 DEG C
Reliability service under evaporating temperature, improves greatly the range of operation of unit.
Secondly, the refrigerant for not being condensed into liquid all is all condensed into liquid by the refrigerant of primary flow path because releasing partial heat,
Degree of supercooling is improved, when the refrigerant of high supercooling degree flows through main throttling electric expansion valve, due to no bubble, throttling can be put down very much
Weighing apparatus, and temperature can be lower, and the temperature difference with air is just bigger, and more heats can be thus absorbed from air, so that
Improve heating capacity.
Brief description of the drawings
Fig. 1 is structural representation of the present utility model in the prior art；
Fig. 2 is the structural representation after the utility model is improved.
Embodiment
Below in conjunction with the accompanying drawing in the utility model embodiment, the technical scheme in the utility model embodiment is carried out
Clearly and completely describe, it is clear that described embodiment is only a part of embodiment of the utility model, rather than whole
Embodiment.Based on the embodiment in the utility model, those of ordinary skill in the art are not under the premise of creative work is made
The every other embodiment obtained, belongs to the scope of the utility model protection.
Referring to Fig. 2, a kind of technical scheme of the utility model offer, modified frequency conversion air supply heat pump cryogenic system, including
Compressor 1；Compressor 1 connects the first valve interface 2a of vapour liquid separator 9 and four-way valve 2 by pipeline；The vapour liquid separator 9
Also connected after being connected with the second valve interface 2b of four-way valve 2 with fluorine heat exchanger 5, evaporator 7 is arranged on the first electronic expansion of connection
On 3rd valve interface 2c of valve 61 and four-way valve 2 pipeline；The side of evaporator 7 is provided with blower fan 8；First electric expansion valve
61 are connected with fluorine heat exchanger 5；Two-way the connection fluorine of reservoir 11 heat exchanger 5 and hydro-thermal parallel operation 3；In fluorine heat exchanger 5 and two-way liquid storage
The second electric expansion valve 62 is additionally provided between the pipeline that device 11 is connected；The upper end of hydro-thermal parallel operation 3 is connected with water pump 10；The hydro-thermal is changed
Device 3 is also connected with the 4th valve interface 2d of four-way valve 2.
Further, the bottom of hydro-thermal parallel operation 3 is provided with water inlet 3a.
Further, the water pump 10 is provided with delivery port 10a.
Further, throttle electric expansion valve based on first electric expansion valve 61；Second electric expansion valve 62 is hydrojet
Electric expansion valve.
Further, the two-way reservoir 11 uses bidirectional high-pressure reservoir.
When unit is normally run, hydrojet electric expansion valve is Close All, and the gaseous coolant of HTHP is from compressor 1
Exhaust outlet is come out, by four-way valve 2, and water- to-water heat exchanger 3 is exchanged heat with water, becomes the liquid of middle temperature high pressure, then by two-way storage
Liquid device 11, flows to the first electric expansion valve 61 from fluorine heat exchanger 5, becomes the liquid of low-temp low-pressure, then flows to evaporator, due to stream
Become big suddenly through sectional area, the liquid coolant evaporation of low-temp low-pressure becomes the gas of low-temp low-pressure, and heat is absorbed by evaporator,
Blower fan provides enough air to allow evaporator to absorb enough heats, and the gaseous coolant of low-temp low-pressure flows to vapour by four-way valve
Liquid/gas separator 9, vapour liquid separator 9 stores the refrigerant liquid of non-evaporating completely, and gaseous coolant only is sent into compressor 1 time
Gas port, compressor 1 completes circulation again by the cold medium compressor of low-temp low-pressure into the gas of HTHP；
When environment temperature is relatively low, and pressure at expulsion exceedes the scope of compressor with back pressure ratio, the exhaust of compressor
Temperature will be exceeded, and now system operation is as follows：The gaseous coolant of HTHP comes out from the exhaust outlet of compressor 1, by four-way
Valve 2, is exchanged heat into water- to-water heat exchanger 3 and water, becomes the liquid of middle temperature high pressure, then by two-way reservoir 11, is divided into two-way,
Become the liquid of low-temp low-pressure after the throttling of the second electric expansion valve 62 all the way, flow through fluorine heat exchanger 5 and evaporate auxiliary circuit entrance, inhale
The gas for becoming low-temp low-pressure from the heat of the high temperature refrigerant in two-way reservoir 11 is received, compression is returned to by vapour liquid separator 9
Machine 1；All the way from fluorine heat exchanger 5, the HTHP refrigerant for condensing not complete is all condensed into liquid, becomes the liquid of high supercooling degree
Body, passes through the first electric expansion valve 61 and improves degree of supercooling, complete liquefied, becomes the liquid of low-temp low-pressure, then flows to evaporator,
Become big suddenly due to flowing through sectional area, the liquid coolant evaporation of low-temp low-pressure becomes the gas of low-temp low-pressure, is inhaled by evaporator
Heat is received, blower fan provides enough air to allow evaporator to absorb enough heats, and the gaseous coolant of low-temp low-pressure passes through four-way
Valve 2 flows to vapour liquid separator 9, and vapour liquid separator 9 stores the refrigerant liquid of non-evaporating completely, is only sent to gaseous coolant
The gas returning port of compressor 1, compressor 1 completes circulation again by the cold medium compressor of low-temp low-pressure into the gas of HTHP.
While there has been shown and described that embodiment of the present utility model, for the ordinary skill in the art,
It is appreciated that these embodiments can be carried out in the case where not departing from principle of the present utility model and spirit a variety of changes, repaiies
Change, replace and modification, scope of the present utility model is defined by the appended claims and the equivalents thereof.
Claims (5)
1. modified frequency conversion air supply heat pump cryogenic system, including compressor；It is characterized in that：Compressor connects vapour-liquid by pipeline
First valve interface of separator and four-way valve；Also exchanged heat after second valve orifice of the vapour liquid separator and four-way valve with fluorine
Device is connected, and evaporator is arranged on the pipeline of the 3rd valve interface of the first electric expansion valve of connection and four-way valve；Evaporator side
It is provided with blower fan；First electric expansion valve is connected with fluorine heat exchanger；Two-way reservoir connection fluorine heat exchanger and hydro-thermal parallel operation；
The second electric expansion valve is additionally provided between the pipeline that fluorine heat exchanger is connected with two-way reservoir；Hydro-thermal parallel operation upper end is connected with water
Pump；Fourth valve orifice of the hydro-thermal parallel operation also with four-way valve.
2. modified frequency conversion air supply heat pump cryogenic system as claimed in claim 1, it is characterised in that：The hydro-thermal parallel operation bottom
Provided with water inlet.
3. modified frequency conversion air supply heat pump cryogenic system as claimed in claim 1, it is characterised in that：The water pump is provided with out
The mouth of a river.
4. modified frequency conversion air supply heat pump cryogenic system as claimed in claim 1, it is characterised in that：First electronic expansion
Throttle electric expansion valve based on valve；Second electric expansion valve is hydrojet electric expansion valve.
5. modified frequency conversion air supply heat pump cryogenic system as claimed in claim 1, it is characterised in that：The two-way reservoir is adopted
Use bidirectional high-pressure reservoir.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720073102.5U CN206420190U (en) | 2017-01-19 | 2017-01-19 | Modified frequency conversion air supply heat pump cryogenic system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720073102.5U CN206420190U (en) | 2017-01-19 | 2017-01-19 | Modified frequency conversion air supply heat pump cryogenic system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206420190U true CN206420190U (en) | 2017-08-18 |
Family
ID=59571697
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720073102.5U Expired - Fee Related CN206420190U (en) | 2017-01-19 | 2017-01-19 | Modified frequency conversion air supply heat pump cryogenic system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206420190U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114151878A (en) * | 2021-12-08 | 2022-03-08 | 广东日出东方空气能有限公司 | High-environment-temperature air source swimming pool unit |
-
2017
- 2017-01-19 CN CN201720073102.5U patent/CN206420190U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114151878A (en) * | 2021-12-08 | 2022-03-08 | 广东日出东方空气能有限公司 | High-environment-temperature air source swimming pool unit |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20170818 Termination date: 20220119 |