CN205425498U - Air conditioning system - Google Patents
Air conditioning system Download PDFInfo
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- CN205425498U CN205425498U CN201620106078.6U CN201620106078U CN205425498U CN 205425498 U CN205425498 U CN 205425498U CN 201620106078 U CN201620106078 U CN 201620106078U CN 205425498 U CN205425498 U CN 205425498U
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Abstract
The utility model discloses an air conditioning system, air conditioning system include compressor (6), condenser (4) and major loop expansion valve (3), still include: heat accumulation device (5), set up in condenser (4) with subcooler (9) between major loop expansion valve (3), run through the first enthalpy pipeline that increases of subcooler (9), the first enthalpy pipeline that increases passes heat accumulation device (5) and with the tonifying qi mouth of compressor (6) is connected, set up in first increase increasing on the enthalpy pipeline enthalpy expansion valve (2). The utility model provides an air conditioning system flows in the compressor after the heat absorption of heat accumulation device, effectively avoided the jet -propelled super -heated rate of enthalpy fluidic that increases of inflow compressor to cross lowly or for the problem of negative value, improved the control to jet -propelled super -heated rate, has ensured compressor and air conditioning system operational reliability.
Description
Technical field
The utility model relates to technical field of heat exchange equipment, particularly to a kind of air-conditioning system.
Background technology
Subcooler it is provided with so that air-conditioning obtains higher refrigeration (hot) amount, improves the efficiency of system simultaneously in air-conditioning system.But, there is the situation that the jet degree of superheat is out of control in the air-conditioning system of band subcooler, as the jet degree of superheat supercooling or be negative value.Reach to regulate the effect of the jet degree of superheat by the aperture of regulation air injection enthalpy-increasing electric expansion valve, but this control method has certain hysteresis quality, the jet degree of superheat by negative value on the occasion of regulating time longer, the state duration once not having the jet degree of superheat (hydrojet) is longer, compressor and unit operation reliability can be caused extreme influence.
Therefore, how to guarantee compressor and air-conditioning system operational reliability, become the important technological problems that those skilled in the art are urgently to be resolved hurrily.
Utility model content
In view of this, the utility model provides a kind of air-conditioning system, to guarantee compressor and air-conditioning system operational reliability.
For achieving the above object, the following technical scheme of the utility model offer:
A kind of air-conditioning system, including compressor, condenser and main circuit expansion valve, also includes:
Regenerative apparatus；
It is arranged at the subcooler between described condenser and described main circuit expansion valve；
Connecting the first increasing enthalpy pipeline of described subcooler, described first increases enthalpy pipeline is connected through described regenerative apparatus the gas supplementing opening with described compressor；
It is arranged at described first and increases the increasing enthalpy expansion valve on enthalpy pipeline.
Preferably, in above-mentioned air-conditioning system, also include:
Second increases enthalpy pipeline, and the described second one end connection described first increasing enthalpy pipeline increases enthalpy pipeline pipeline section between described subcooler and described regenerative apparatus, and its other end connects with the gas supplementing opening of described compressor；
Switch described first increasing enthalpy pipeline and pass the break-make between the pipeline section of described subcooler and the gas supplementing opening of described compressor and the increasing enthalpy switching device of the break-make between described second increasing enthalpy pipeline and the gas supplementing opening of described compressor.
Preferably, in above-mentioned air-conditioning system, described increasing enthalpy switching device includes that described first increases the second magnetic valve arranged on the first magnetic valve arranged on enthalpy pipeline and described second increasing enthalpy pipeline.
Preferably, in above-mentioned air-conditioning system, described increasing enthalpy switching device is electric T-shaped valve.
Preferably, in above-mentioned air-conditioning system, also include the gas supplementing opening being positioned at described compressor, for detecting pressure-detecting device and the temperature-detecting device of the jet degree of superheat.
Preferably, in above-mentioned air-conditioning system, described first one end increasing enthalpy pipeline is connected on the pipeline section between described subcooler and described main circuit expansion valve.
Preferably, in above-mentioned air-conditioning system, described first one end increasing enthalpy pipeline is connected on the pipeline section between described subcooler and described condenser.
Preferably, in above-mentioned air-conditioning system, described regenerative apparatus is connected in series with on the output channel of described compressor.
Preferably, in above-mentioned air-conditioning system, described regenerative apparatus is wrapped in around described compressor.
Preferably, in above-mentioned air-conditioning system, described regenerative apparatus is connected in series with between described condenser and described main circuit expansion valve.
Preferably, in above-mentioned air-conditioning system, also include being arranged at the electric heater unit at the gas supplementing opening of described compressor or within described compressor.
Can be seen that from technique scheme, the air-conditioning system that the utility model provides, in running, regenerative apparatus accumulation heat, first increases after the fluid in major loop lowered the temperature by the fluid in enthalpy pipeline, flows into compressor after regenerative apparatus absorbs heat, and effectively prevent and flows into that the jet degree of superheat increasing enthalpy fluid of compressor is too low or problem for negative value, improve the control to the jet degree of superheat, it is ensured that compressor and air-conditioning system operational reliability.
Accompanying drawing explanation
In order to be illustrated more clearly that the utility model embodiment or technical scheme of the prior art, the accompanying drawing used required in embodiment or description of the prior art will be briefly described below, apparently, accompanying drawing in describing below is only embodiments more of the present utility model, for those of ordinary skill in the art, on the premise of not paying creative work, it is also possible to obtain other accompanying drawing according to these accompanying drawings.
The first structural representation of the air-conditioning system that Fig. 1 provides for the utility model embodiment；
The second structural representation of the air-conditioning system that Fig. 2 provides for the utility model embodiment；
The third structural representation of the air-conditioning system that Fig. 3 provides for the utility model embodiment；
4th kind of structural representation of the air-conditioning system that Fig. 4 provides for the utility model embodiment；
5th kind of structural representation of the air-conditioning system that Fig. 5 provides for the utility model embodiment；
6th kind of structural representation of the air-conditioning system that Fig. 6 provides for the utility model embodiment；
7th kind of structural representation of the air-conditioning system that Fig. 7 provides for the utility model embodiment.
Detailed description of the invention
The utility model provides a kind of air-conditioning system, to guarantee compressor and air-conditioning system operational reliability.
Below in conjunction with the accompanying drawing in the utility model embodiment, the technical scheme in the utility model embodiment is clearly and completely described, it is clear that described embodiment is only a part of embodiment of the utility model rather than whole embodiments.Based on the embodiment in the utility model, the every other embodiment that those of ordinary skill in the art are obtained under not making creative work premise, broadly fall into the scope of the utility model protection.
Refer to the first structural representation of the air-conditioning system that Fig. 1, Fig. 1 provide for the utility model embodiment.
The utility model embodiment provides a kind of air-conditioning system, increases enthalpy pipeline including compressor 6, regenerative apparatus 5, condenser 4, first, increases enthalpy expansion valve 2, subcooler 9 and main circuit expansion valve 3.Subcooler 9 is arranged between condenser 4 and main circuit expansion valve 3, and first increases the connection of enthalpy pipeline subcooler 9, increases enthalpy expansion valve 2 and is arranged on the first increasing enthalpy pipeline, and first increases enthalpy pipeline is connected through regenerative apparatus 5 gas supplementing opening with compressor 6.
The air-conditioning system that the utility model embodiment provides, in running, regenerative apparatus 5 accumulation heat, after fluid in major loop is lowered the temperature by the fluid in the first increasing enthalpy pipeline, compressor 6 is flowed into after regenerative apparatus 5 absorbs heat, effectively prevent that to flow into the jet degree of superheat increasing enthalpy fluid of compressor 6 too low or for the problem of negative value, improve the control to the jet degree of superheat, it is ensured that compressor and air-conditioning system operational reliability.
It should be noted that the flow direction of fluid during solid arrow direction is heating operations in figure, dotted arrow is the flow direction of fluid in counter-current process.The major loop of air-conditioning system flows to circulate structure for sequentially pass through compressor 6, the output channel of compressor, condenser 4, main circuit expansion valve 3, evaporimeter 1, the input channel of compressor and compressor 6.
The air-conditioning system that the utility model embodiment provides also includes the second increasing enthalpy pipeline and increases enthalpy switching device, and second increases one end connection the first increasing enthalpy pipeline pipeline section between subcooler 9 and regenerative apparatus 5 of enthalpy pipeline, and its other end connects with the gas supplementing opening of compressor 6；Increase enthalpy switching device control the first increasing enthalpy pipeline and pass the break-make between the pipeline section of subcooler 9 and the gas supplementing opening of compressor 6 and the break-make between the second increasing enthalpy pipeline and the gas supplementing opening of compressor 6.By increasing enthalpy switching device, it is achieved whether the fluid that subcooler 9 flows out is through regenerative apparatus 5.When needs heat through regenerative apparatus 5, first increases enthalpy pipeline connection；When needing not move through regenerative apparatus 5 and heating, second increases enthalpy pipeline connection.
In the present embodiment, increase enthalpy switching device and include that the first magnetic valve 10 and second of setting on the first increasing enthalpy pipeline increases the second magnetic valve 11 arranged on enthalpy pipeline.By controlling the first magnetic valve 10 and the unlatching of the second magnetic valve 11 and closedown, it is achieved corresponding the first increasing enthalpy pipeline and second increases break-make and the regulation of open degree of enthalpy pipeline, improves the precision of the regulation jet degree of superheat.
Electric T-shaped valve 14 can also be set to by increasing enthalpy switching device, it is respectively communicated with subcooler 9, regenerative apparatus 5 and the gas supplementing opening of compressor 6, switching by electric T-shaped valve 14, it is achieved the connection of the gas supplementing opening of subcooler 9 and the gas supplementing opening of compressor 6 and regenerative apparatus 5 and compressor 6.Preferably, electric T-shaped valve 14 can regulate the pipeline open degree between the gas supplementing opening of subcooler 9 and compressor 6 and the open degree of the pipeline between the gas supplementing opening of regenerative apparatus 5 and compressor 6.Only needing to arrange an electric T-shaped valve 14 and can complete switching effect, the system that facilitates is installed.
As a example by increasing enthalpy switching device includes the first magnetic valve 10 and the second magnetic valve 11.First magnetic valve 10 and the second magnetic valve 11 may be at the state fully open or fully closed, it is also possible to be in the state of aperture regulation.For the ease of the first magnetic valve 10 and aperture of the second magnetic valve 11, in order to improve the precision of the regulation jet degree of superheat further, also include the gas supplementing opening being positioned at compressor 6, for detecting pressure-detecting device and the temperature-detecting device of the jet degree of superheat.By arranging pressure-detecting device and temperature-detecting device, effectively detect jet degree of superheat t.
As shown in Fig. 2, Fig. 4 and Fig. 6, in these three embodiment, first one end increasing enthalpy pipeline is connected on the pipeline section between subcooler 9 and main circuit expansion valve 3.That is, subcooler 9 takes liquid structure for downstream, and the first fluid increased in enthalpy pipeline is the part that the fluid in major loop is diverted after subcooler 9.
As shown in Fig. 1, Fig. 3, Fig. 5 and Fig. 7, in these four embodiment, first one end increasing enthalpy pipeline is connected on the pipeline section between subcooler 9 and condenser 4.That is, subcooler 9 takes liquid structure for upstream, and the first fluid increased in enthalpy pipeline is that the fluid in major loop is in the part being diverted before subcooler 9.
Wherein, the accumulation of heat heat of regenerative apparatus 5 can be provided by compressor 6.
As shown in Figure 1, Figure 2 and shown in Fig. 7, in these three embodiment, regenerative apparatus 5 and the separate setting of compressor 6.Wherein, regenerative apparatus 5 is connected in series with on the output channel of compressor 6, in order to the heat of the fluid in the output channel of absorption compressor 6.Facilitate the maintenance maintenance of the two.
As shown in Figures 5 and 6, in both embodiments, regenerative apparatus 5 is wrapped in compressor 6 around.By reclaiming the waste heat that compressor 6 is sent out, accumulation of heat is in regenerative apparatus 5.
The accumulation of heat heat of regenerative apparatus 5 can also be provided by condenser 4.
As shown in Figures 3 and 4, regenerative apparatus 5 is connected in series with between condenser 4 and main circuit expansion valve 3.Regenerative apparatus 5 absorbs the heat of the fluid flowing out condenser 4, while completing accumulation of heat, reduces the heat of the fluid flowing to evaporimeter 1, further increases the efficiency of system.
Preferably, subcooler 9 is economizer.In the present embodiment, preferably plate type heat exchanger uses as subcooler 9.
In order to improve accumulation of heat effect, in regenerative apparatus 5, it is provided with phase change heat storage material.The non-phase change heat storage materials such as water can also be set in regenerative apparatus 5, equally play accumulation of heat effect, be not particularly limited at this and all within protection domain.
In the present embodiment, condenser 4 is preferably the package heat-exchanger rig such as full-liquid type case tube heat exchanger or dry type package device, is not particularly limited at this.
The air-conditioning system that the utility model embodiment provides also includes the electric heater unit (not shown) being arranged at the gas supplementing opening of compressor 6 or within compressor 6.By arranging electric heater unit, the gas supplementing opening fluid flowing into compressor 6 is carried out further temperature adjustment, it is ensured that enter the jet degree of superheat of the fluid of compressor 6, and then ensure that compressor reliability service.
In order to make compressor stable operation, it is to avoid compressor 6 band hydraulic compression, air-conditioning system also includes the gas-liquid separator 8 being arranged on the input channel of compressor 6.
The air-conditioning system that the utility model embodiment provides also includes being arranged on pipeline, flows to the check valve 13 arranged along its internal flow, by arranging check valve 13, limits the flow direction of fluid in pipeline, effectively prevent the situation of fluid countercurrent current.The concrete installation warrants major loop of check valve 13 flows to and increases enthalpy flow to arrange.And between condenser 4 and subcooler 9, it is provided with filter 12, it is effectively increased the service life of subcooler 9.
The utility model embodiment additionally provides the control method of the jet degree of superheat of a kind of air-conditioning system, wherein, air-conditioning system also includes the second increasing enthalpy pipeline, second one end connection the first increasing enthalpy pipeline pipeline section between subcooler 9 and regenerative apparatus 5 increasing enthalpy pipeline, its other end connects with the gas supplementing opening of compressor 6；Switching the first increasing enthalpy pipeline and second increases the increasing enthalpy switching device of enthalpy pipeline circulation.Increase enthalpy switching device and include that the first magnetic valve 10 and second of setting on the first increasing enthalpy pipeline increases the second magnetic valve 11 arranged on enthalpy pipeline.Wherein, including step:
S1: design temperature parameter a, b, c and d, a≤b≤c≤d, the zone of reasonableness of the jet degree of superheat is b～c；That is, b≤t≤c.
S2: jet degree of superheat t of the gas supplementing opening of detection compressor 6, and compare with the temperature parameter set；Preferably for the detection of gas supplementing opening jet degree of superheat t of compressor 6, for detection in real time.The scheduled time detection to gas supplementing opening jet degree of superheat t of compressor 6 can also be spaced.
S3: as b≤t≤c, the first magnetic valve 10 is fully closed, the second magnetic valve 11 standard-sized sheet；Now, the jet degree of superheat is in the reasonable scope, it is not necessary to heat the fluid of the gas supplementing opening flowing into compressor 6, and in this condition, the fluid through subcooler 9 is all increased enthalpy pipeline by second and flows into the gas supplementing opening of compressor 6.
As t≤a, the first magnetic valve 10 standard-sized sheet, the second magnetic valve 11 is fully closed, until c≤t≤d, the first magnetic valve 10 progressively closes off, and the second magnetic valve 11 is gradually opened big to maximum opening；As t≤a, the too low even negative value of jet degree of superheat t, in this case, need to improve jet degree of superheat t as early as possible, therefore, the fluid through subcooler 9 all flows into the first increasing enthalpy pipeline, flows into the gas supplementing opening of compressor 6 after flowing through regenerative apparatus 5 heat absorption.Heat along with absorption of fluids regenerative apparatus 5, jet degree of superheat t heats up, until c≤t≤d, after the temperature of jet degree of superheat t exceedes zone of reasonableness, regulate the first magnetic valve 10 and aperture of the second magnetic valve 11 again, reduce the fluid flow of the first increasing enthalpy pipeline, increase the fluid flow of the second increasing enthalpy pipeline, until fluid is all increased enthalpy pipeline by second flows into the gas supplementing opening of compressor 6.
As a≤t≤b, the first magnetic valve 10 is gradually opened, and the second magnetic valve 11 progressively closes off, until during b≤t≤c, the first magnetic valve 10 progressively closes off, the second magnetic valve 11 is gradually opened big to maximum opening；As a≤t≤b, jet degree of superheat t is relatively low, needs slowly to adjust temperature, it is to avoid temperature adjustment excessive velocities and make jet degree of superheat t accommodative excess.Therefore, the first magnetic valve 10 is gradually opened, and the second magnetic valve 11 progressively closes off, until b≤t≤c, in the reasonable scope, then the first magnetic valve 10 progressively closes off the jet degree of superheat, and the second magnetic valve 11 is gradually opened big to maximum opening.
As t >=c, the first magnetic valve 10 is fully closed, the second magnetic valve 11 standard-sized sheet.In this case, the temperature of jet degree of superheat t is higher, it is not necessary to heat fluid, and therefore, fluid is all increased enthalpy pipeline by second and flows into the gas supplementing opening of compressor 6.
By the control method of the jet degree of superheat that above-described embodiment provides, complete the regulation of the jet degree of superheat fast and effectively.
In this specification, each embodiment uses the mode gone forward one by one to describe, and what each embodiment stressed is the difference with other embodiments, and between each embodiment, identical similar portion sees mutually.
Described above to the disclosed embodiments, makes professional and technical personnel in the field be capable of or uses the utility model.Multiple amendment to these embodiments will be apparent from for those skilled in the art, and generic principles defined herein can realize in the case of without departing from spirit or scope of the present utility model in other embodiments.Therefore, the utility model is not intended to be limited to the embodiments shown herein, and is to fit to the widest scope consistent with principles disclosed herein and features of novelty.
Claims (11)
1. an air-conditioning system, including compressor (6), condenser (4) and main circuit expansion valve (3), it is characterised in that also include:
Regenerative apparatus (5)；
The subcooler (9) being arranged between described condenser (4) and described main circuit expansion valve (3)；
Connecting the first increasing enthalpy pipeline of described subcooler (9), described first increases enthalpy pipeline is connected through described regenerative apparatus (5) the gas supplementing opening with described compressor (6)；
It is arranged at described first and increases increasing enthalpy expansion valve (2) on enthalpy pipeline.
Air-conditioning system the most according to claim 1, it is characterised in that also include:
Second increases enthalpy pipeline, the described second one end connection described first increasing enthalpy pipeline increases enthalpy pipeline and is positioned at the pipeline section between described subcooler (9) and described regenerative apparatus (5), and its other end connects with the gas supplementing opening of described compressor (6)；
Switch described first increasing enthalpy pipeline and pass the break-make between the pipeline section of described subcooler (9) and the gas supplementing opening of described compressor (6) and the increasing enthalpy switching device of the break-make between described second increasing enthalpy pipeline and the gas supplementing opening of described compressor (6).
Air-conditioning system the most according to claim 2, it is characterised in that described increasing enthalpy switching device includes that described first increases the second magnetic valve (11) arranged on the first magnetic valve (10) arranged on enthalpy pipeline and described second increasing enthalpy pipeline.
Air-conditioning system the most according to claim 2, it is characterised in that described increasing enthalpy switching device is electric T-shaped valve (14).
Air-conditioning system the most according to claim 2, it is characterised in that also include the gas supplementing opening being positioned at described compressor (6), for detecting pressure-detecting device and the temperature-detecting device of the jet degree of superheat.
Air-conditioning system the most according to claim 1, it is characterised in that described first one end increasing enthalpy pipeline is connected on the pipeline section between described subcooler (9) and described main circuit expansion valve (3).
Air-conditioning system the most according to claim 1, it is characterised in that described first one end increasing enthalpy pipeline is connected on the pipeline section between described subcooler (9) and described condenser (4).
Air-conditioning system the most according to claim 1, it is characterised in that described regenerative apparatus (5) is connected in series with on the output channel of described compressor (6).
Air-conditioning system the most according to claim 1, it is characterised in that described regenerative apparatus (5) is wrapped in described compressor (6) around.
Air-conditioning system the most according to claim 1, it is characterised in that described regenerative apparatus (5) is connected in series with between described condenser (4) and described main circuit expansion valve (3).
11. according to the air-conditioning system described in any one of claim 1-10, it is characterised in that also include being arranged at the gas supplementing opening of described compressor (6) or the electric heater unit of described compressor (6) inside.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620106078.6U CN205425498U (en) | 2016-02-02 | 2016-02-02 | Air conditioning system |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620106078.6U CN205425498U (en) | 2016-02-02 | 2016-02-02 | Air conditioning system |
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| CN205425498U true CN205425498U (en) | 2016-08-03 |
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| CN201620106078.6U Active CN205425498U (en) | 2016-02-02 | 2016-02-02 | Air conditioning system |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105650919A (en) * | 2016-02-02 | 2016-06-08 | 珠海格力电器股份有限公司 | Air-conditioning system and air-injection degree of superheat regulating system |
| CN106482405A (en) * | 2016-09-21 | 2017-03-08 | 珠海格力电器股份有限公司 | Air-Cooled Heat Pump Unit and its control method, device and system |
-
2016
- 2016-02-02 CN CN201620106078.6U patent/CN205425498U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105650919A (en) * | 2016-02-02 | 2016-06-08 | 珠海格力电器股份有限公司 | Air-conditioning system and air-injection degree of superheat regulating system |
| CN106482405A (en) * | 2016-09-21 | 2017-03-08 | 珠海格力电器股份有限公司 | Air-Cooled Heat Pump Unit and its control method, device and system |
| CN106482405B (en) * | 2016-09-21 | 2019-01-01 | 珠海格力电器股份有限公司 | Air-Cooled Heat Pump Unit and its control method, device and system |
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