CN212253224U - Economizer injection air supplement heat pump system - Google Patents
Economizer injection air supplement heat pump system Download PDFInfo
- Publication number
- CN212253224U CN212253224U CN202020721380.9U CN202020721380U CN212253224U CN 212253224 U CN212253224 U CN 212253224U CN 202020721380 U CN202020721380 U CN 202020721380U CN 212253224 U CN212253224 U CN 212253224U
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- economizer
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- 238000002347 injection Methods 0.000 title claims abstract description 20
- 239000007924 injection Substances 0.000 title claims abstract description 20
- 239000013589 supplement Substances 0.000 title description 3
- 239000007788 liquid Substances 0.000 claims abstract description 28
- 239000012530 fluid Substances 0.000 claims abstract description 18
- 239000012071 phase Substances 0.000 claims abstract description 5
- 239000007791 liquid phase Substances 0.000 claims abstract description 4
- 239000003507 refrigerant Substances 0.000 abstract description 13
- 230000009467 reduction Effects 0.000 abstract description 6
- 230000009286 beneficial effect Effects 0.000 abstract description 2
- 238000011084 recovery Methods 0.000 abstract description 2
- 238000000034 method Methods 0.000 abstract 1
- 239000007921 spray Substances 0.000 description 10
- 239000000243 solution Substances 0.000 description 5
- 230000006835 compression Effects 0.000 description 3
- 238000007906 compression Methods 0.000 description 3
- 238000012986 modification Methods 0.000 description 3
- 230000004048 modification Effects 0.000 description 3
- 230000005514 two-phase flow Effects 0.000 description 3
- 239000003245 coal Substances 0.000 description 2
- 238000010438 heat treatment Methods 0.000 description 2
- 230000006872 improvement Effects 0.000 description 2
- 230000006698 induction Effects 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 238000004378 air conditioning Methods 0.000 description 1
- 230000004075 alteration Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 238000005265 energy consumption Methods 0.000 description 1
- 238000000265 homogenisation Methods 0.000 description 1
- 238000013021 overheating Methods 0.000 description 1
- 239000000047 product Substances 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 239000013526 supercooled liquid Substances 0.000 description 1
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- Compression-Type Refrigeration Machines With Reversible Cycles (AREA)
Abstract
The utility model relates to the technical field of energy-saving devices, and provides an economizer injection air-supplementing heat pump system, which comprises a compressor, wherein the compressor is respectively connected with a condenser and an evaporator; the outlet of the condenser is connected with an economizer; the economizer is provided with an auxiliary channel and a main channel, and inlets of the auxiliary channel and the main channel are bothIs connected with a condenser in series; the outlet of the main channel of the economizer is connected with a gas-liquid separator through a throttle valve; the inlet of the evaporator is connected with the liquid phase outlet of the gas-liquid separator; the outlet of the bypass channel of the economizer and the gas-phase outlet of the gas-liquid separator are respectively connected with the working fluid inlet and the injection fluid inlet of the ejector; the mixed fluid outlet of the ejector is connected with the compressor. Therefore, the utility model discloses utilize the useful ability of sprayer recovery expansion valve loss, realized the reduction of evaporimeter entry refrigerant quality, improved
Efficiency and evaporator heat exchange efficiency, reduce compressor exhaust superheat degree. The method is beneficial to the high-efficiency operation of the low-temperature high-pressure-ratio working condition unit and the reduction and intensification development of the unit.
Description
Technical Field
The utility model belongs to the technical field of economizer, especially, relate to an economizer sprays tonifying qi heat pump system.
Background
Because air-conditioning heating is a main component of building energy consumption, and a heat pump unit serving as a typical renewable energy utilization device also faces the problems of product homogenization and low system efficiency. At the stage of rapid development of non-coal heat supply of changing coal into electricity at present, the problem of seeking for efficient heat exchange equipment and system forms is faced by the current low-temperature heat supply unit. In view of the fact that the traditional dry evaporator generally adopts a superheat degree signal of 3-10 ℃ to feed back and adjust the opening degree of the throttle valve, and the superheat degree belongs to a harmful factor for a conventional working medium, and is not beneficial to improvement of comprehensive energy efficiency of a unit. In order to meet the requirement of low-pressure steam superheating, about 20% of heat exchange area is required to generate about 5% of refrigerating capacity.
Therefore, in view of the high phase-change heat transfer coefficient, how to effectively reduce the dryness of the evaporator inlet, improve the heat transfer efficiency and reduce the overheating loss is a difficult problem.
In view of the above, the prior art is obviously inconvenient and disadvantageous in practical use, and needs to be improved.
SUMMERY OF THE UTILITY MODEL
To the above-mentioned defect, an object of the utility model is to provide an economizer sprays tonifying qi heat pump system, through the useful ability that utilizes recoverable part of sprayer because of the expansion valve loss, has realized the reduction of evaporimeter entry refrigerant quality, has improved
Efficiency and evaporimeter heat exchange efficiency, equal evaporimeter refrigerating capacity can reduce heat transfer area, because of the ejector export refrigerant steam reduces to some extent for former tonifying qi temperature, its compressor exhaust superheat degree will reduce. The utility model discloses a stable high-efficient operation of low temperature big pressure ratio operating mode unit provides understandingThe solution also provides conditions for the reduction and intensification development of the unit.
In order to achieve the purpose, the utility model provides an economizer sprays tonifying qi heat pump system, including the compressor, the condenser and evaporimeter are connected respectively to the compressor; the outlet of the condenser is connected with an economizer;
the economizer is provided with an auxiliary channel and a main channel, and inlets of the auxiliary channel and the main channel are connected with the condenser in series; a throttle valve is connected between the inlet of the auxiliary channel of the economizer and the condenser; the outlet of the main channel of the economizer is connected with a gas-liquid separator through a throttle valve;
the inlet of the evaporator is connected with the liquid phase outlet of the gas-liquid separator; the outlet of the bypass channel of the economizer and the gas-phase outlet of the gas-liquid separator are respectively connected with the working fluid inlet and the injection fluid inlet of the ejector; the mixed fluid outlet of the ejector is connected with a compressor.
According to the utility model discloses an economizer sprays tonifying qi heat pump system, the compressor is the air injection enthalpy increasing compressor, can realize two-stage compression or accurate second grade compression.
According to the utility model discloses an economizer sprays tonifying qi heat pump system, the evaporimeter is connected to the main induction port of enhanced vapor injection compressor, and the sprayer is connected to the secondary induction port.
According to the utility model discloses an economizer sprays tonifying qi heat pump system, be connected with the choke valve between the main road passageway export of economizer and the vapour and liquid separator.
According to the utility model discloses an economizer sprays tonifying qi heat pump system, vapour and liquid separator is the flash vessel.
According to the utility model discloses an economizer sprays tonifying qi heat pump system, the condenser is air-cooled or water-cooled.
An object of the utility model is to provide an economizer sprays tonifying qi heat pump system, but through utilizing the useful ability of ejector recovery part because of the expansion valve loss, has realized the reduction of evaporimeter entry refrigerant quality, has improved
Efficiency and evaporimeter heat exchange efficiency, equal evaporimeter refrigerating capacity can reduce heat transfer area, because of the ejector export refrigerant steam reduces to some extent for former tonifying qi temperature, its compressor exhaust superheat degree will reduce. The utility model discloses a stable high-efficient operation of low temperature big pressure ratio operating mode unit provides the solution, also provides the condition for the intensive development of unit decrement.
Drawings
Fig. 1 is a schematic structural diagram of the present invention;
in the figure: 1-compressor, 2-condenser, 3-evaporator, 4-ejector, 5-throttle valve, 6-gas-liquid separator, and 7-economizer.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more clearly understood, the present invention is further described in detail below with reference to the accompanying drawings and embodiments, it is to be understood that the specific embodiments described herein are only used for explaining the present invention, and are not used for limiting the present invention.
In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", and the like, indicate the orientation or positional relationship indicated based on the drawings, and are only for convenience of description and simplicity of description, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore, should not be construed as limiting the present invention.
Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature. In the description of the present invention, "a plurality" means at least two, e.g., two, three, etc., unless specifically limited otherwise.
In the present invention, unless otherwise expressly stated or limited, the terms "mounted," "connected," and "fixed" are to be construed broadly and may, for example, be fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; they may be directly connected or indirectly connected through intervening media, or they may be connected internally or in any other suitable relationship, unless expressly stated otherwise. The specific meaning of the above terms in the present invention can be understood according to specific situations by those skilled in the art.
In the present application, unless expressly stated or limited otherwise, the first feature may be directly on or directly under the second feature or indirectly via intermediate members. Also, a first feature "on," "over," and "above" a second feature may be directly or diagonally above the second feature, or may simply indicate that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature may be directly under or obliquely under the first feature, or may simply mean that the first feature is at a lesser elevation than the second feature.
In the description herein, references to the description of the term "one embodiment," "some embodiments," "an example," "a specific example," or "some examples," etc., mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, the schematic representations of the terms used above are not necessarily intended to refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples. Moreover, various embodiments or examples and features of various embodiments or examples described in this specification can be combined, without conflict, by one skilled in the art
And (4) merging and combining.
Although embodiments of the present invention have been shown and described, it is understood that the above embodiments are exemplary and should not be construed as limiting the present invention, and that variations, modifications, substitutions and alterations can be made to the above embodiments by those of ordinary skill in the art without departing from the scope of the present invention.
Referring to fig. 1, the utility model provides an economizer injection air make-up heat pump system, which comprises a compressor 1, wherein the compressor 1 is respectively connected with a condenser 2 and an evaporator 3; the outlet of the condenser 2 is connected with an economizer 7; the economizer 7 is provided with a secondary channel and a main channel, and inlets of the secondary channel and the main channel are connected with the condenser 2 in series; a throttle valve 5 is connected between an inlet of a secondary channel of the economizer 7 and the condenser 2, and an outlet of a primary channel of the economizer 7 is connected with a gas-liquid separator 6 through the throttle valve 5;
the inlet of the evaporator 3 is connected with the liquid phase outlet of the gas-liquid separator 6; an outlet of the bypass channel of the economizer 7 and a gas-phase outlet of the gas-liquid separator 6 are respectively connected with a working fluid inlet and an injection fluid inlet of the ejector 4; the mixed fluid outlet of the ejector 4 is connected with the compressor 1.
In one embodiment, a throttle valve 5 is connected between the outlet of the main channel of the economizer 7 and the gas-liquid separator 6.
Preferably, the compressor 1 of the utility model is an enhanced vapor injection compressor; furthermore, a main air suction port of the enhanced vapor injection compressor is connected with the evaporator 3, and a secondary air suction port is connected with the ejector 4.
The utility model leads the supercooled liquid from the outlet of the condenser 2 into the main and auxiliary channels of the economizer 7 respectively; the liquid in the main passage is cooled by the economizer 7 and further subcooled, and the released heat is used for heating the gas-liquid two-phase flow generated by the throttle valve 5 in the auxiliary passage to form superheated steam, and the superheated steam enters the ejector 4 through the working fluid inlet of the ejector 4.
Preferably, a throttle valve 5 is connected between the main path channel of the economizer 7 and the gas-liquid separator 6. Furthermore, the subcooled working medium of the main path channel of the economizer forms a gas-liquid two-phase flow through the throttle valve 5, the two-phase flow enters the gas-liquid separator 6 to realize low-pressure gas-liquid separation, gas in the gas-liquid separator 6 enters the ejector fluid inlet of the ejector as low-pressure low-temperature steam, high-pressure high-temperature steam at the working fluid inlet of the ejector 4 and the low-pressure low-temperature steam at the ejector fluid inlet are mixed and then flow out from the mixed fluid outlet and are sprayed into the middle air supplement port of the compressor 1, and the pressure and the temperature of the mixed fluid (namely the refrigerant sprayed into the cavity of the compressor) are lower.
As an example, the gas-liquid separator 6 of the present invention is a flash evaporator.
As an example, the condenser 2 is air-cooled or water-cooled.
The liquid refrigerant led out from the condenser 2 of the utility model is cooled by the economizer 7 and separated by the gas-liquid separator 6, so that a large amount of gas phase in the refrigerant is separated and directly enters the compressor 1 through the ejector 4; the pressure of low-pressure refrigerant steam at the inlet of the compressor 1 is increased, part of useful energy is recovered, the compression work of the compressor on the part of steam is saved, and the improvement of the unit is greatly improved
Efficiency.
The dryness of the refrigerant at the inlet of the evaporator 3 is effectively reduced after the refrigerant is separated, and the heat exchange efficiency of the evaporator 3 is promoted.
The utility model discloses a stable high-efficient operation of low temperature big pressure ratio operating mode unit provides the solution, also provides the condition for the intensive development of unit decrement.
To sum up, the utility model provides an economizer sprays tonifying qi heat pump system through the useful ability that utilizes recoverable part of sprayer because of the expansion valve loss, has realized the reduction of evaporimeter entry refrigerant quality, has improved
Efficiency and evaporator heat exchange efficiency, equal evaporator refrigerationThe heat exchange area can be reduced, and the exhaust superheat degree of the compressor is reduced due to the fact that the temperature of refrigerant steam at the outlet of the ejector is reduced relative to the original air supply temperature. The utility model discloses a stable high-efficient operation of low temperature big pressure ratio operating mode unit provides the solution, also provides the condition for the intensive development of unit decrement.
Naturally, the present invention can be embodied in many other forms without departing from the spirit or essential attributes thereof, and it should be understood that various changes and modifications can be made by one skilled in the art without departing from the spirit or essential attributes thereof, and it is intended that all such changes and modifications be considered as within the scope of the appended claims.
Claims (6)
1. The economizer injection air-supplementing heat pump system is characterized by comprising a compressor, wherein the compressor is respectively connected with a condenser and an evaporator; the outlet of the condenser is connected with an economizer;
the economizer is provided with an auxiliary channel and a main channel, and inlets of the auxiliary channel and the main channel are connected with the condenser in series; a throttle valve is connected between the inlet of the auxiliary channel of the economizer and the condenser; the outlet of the main channel of the economizer is connected with a gas-liquid separator through a throttle valve;
the inlet of the evaporator is connected with the liquid phase outlet of the gas-liquid separator; the outlet of the bypass channel of the economizer and the gas-phase outlet of the gas-liquid separator are respectively connected with the working fluid inlet and the injection fluid inlet of the ejector; the mixed fluid outlet of the ejector is connected with a compressor.
2. The economizer injection make-up air heat pump system of claim 1 wherein the compressor is a vapor injection enthalpy compressor.
3. The economizer injection gas make-up heat pump system of claim 2, wherein a main air inlet of the enhanced vapor injection compressor is connected to the evaporator, and a secondary air inlet is connected to the ejector.
4. The economizer injection make-up air heat pump system of claim 1 wherein a throttle valve is connected between the economizer main passage outlet and the gas-liquid separator.
5. The economizer injection make-up air heat pump system of any one of claims 1 to 4 wherein the vapor-liquid separator is a flash evaporator.
6. The economizer injection make-up air heat pump system of claim 5 wherein the condenser is air-cooled or water-cooled.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020721380.9U CN212253224U (en) | 2020-05-06 | 2020-05-06 | Economizer injection air supplement heat pump system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020721380.9U CN212253224U (en) | 2020-05-06 | 2020-05-06 | Economizer injection air supplement heat pump system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN212253224U true CN212253224U (en) | 2020-12-29 |
Family
ID=73998393
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202020721380.9U Active CN212253224U (en) | 2020-05-06 | 2020-05-06 | Economizer injection air supplement heat pump system |
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| CN (1) | CN212253224U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113899095A (en) * | 2021-11-18 | 2022-01-07 | 山东大学 | Quasi-two-stage compression type circulating system with ejector for efficiency improvement |
-
2020
- 2020-05-06 CN CN202020721380.9U patent/CN212253224U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113899095A (en) * | 2021-11-18 | 2022-01-07 | 山东大学 | Quasi-two-stage compression type circulating system with ejector for efficiency improvement |
| CN113899095B (en) * | 2021-11-18 | 2022-06-21 | 山东大学 | Quasi-two-stage compression type circulating system with ejector for efficiency improvement |
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