CN203349586U - Air conditioning unit using flammable coolants - Google Patents
Air conditioning unit using flammable coolants Download PDFInfo
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- CN203349586U CN203349586U CN201320317296.0U CN201320317296U CN203349586U CN 203349586 U CN203349586 U CN 203349586U CN 201320317296 U CN201320317296 U CN 201320317296U CN 203349586 U CN203349586 U CN 203349586U
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Abstract
The utility model provides an air conditioning unit using flammable coolants. The air conditioning unit comprises a magnetic suspension centrifugal compressor, a four-way valve communicated with the magnetic suspension centrifugal compressor, a condenser communicated with the four-way valve, a throttling device communicated with the condenser, and at least one evaporator communicated with the throttling device, and the magnetic suspension centrifugal compressor, the four-way valve, the condenser, the throttling device and the evaporator are sequentially communicated to form a circulation loop. The evaporator conveys the flammable coolants back to the magnetic suspension centrifugal compressor through the four-way valve. According to the air conditioning unit using the flammable coolants, oilless design is adopted in the magnetic suspension centrifugal compressor, therefore, devices like an oil injector and an oil-liquid separator are not needed in the system, and meanwhile, subsequent maintenance and repair cost of the devices is saved; in addition, heat exchange effects of the condenser and evaporator are further facilitated because the system is oilless, and the unit is better in performance and higher in energy efficiency under the same condition; more importantly, the unit is the oilless unit, and therefore the flammable coolants can be well used in the air conditioning unit.
Description
Technical field
The utility model relates to a kind of air-conditioning unit, relates in particular to a kind of magnetic suspension centrifugal air conditioner group that can use flammable refrigerant.
Background technology
Since Montreal protocol is signed, various countries have launched the research of the alternative refrigerant of R22 one after another, and at present, mainly substituting refrigerant is R410A, although the ODP of R410A refrigerant is zero, GWP is higher.Along with the pay attention to day by day of international community to greenhouse effects, in field of air conditioning, people find the refrigerant that ODP is zero, GWP is less one after another, and the refrigerant that meets this requirement has R32, R290, R161 etc., but the refrigerant that these ODP are zero, GWP is less is flammable refrigerant.
Above-mentioned flammable refrigerant is used the following problem that exists in family expenses air conditioner group:
When the first, above-mentioned flammable refrigerant is used in the domestic air conditioning unit, once produce, reveal, and, when the concentration of revealing reaches certain limit, a lot of household electrical appliance in room have the risk of lighting flammable cold media gas, the risk of the blast of producing even may be arranged in the room of sealing; The second, the compressor of traditional air-conditioning unit generally adopts displacement type, and displacement type compressor is divided into again two kinds of reciprocating-piston and swingings; Rotary Compressor comprises scraping blade (slide plate) rotary compressor, screw compressor, the most rotary compressors that adopt of the air-conditioner of domestic production at present; Screw compressor is mainly used in large-scale refrigeration plant.Yet above-mentioned compressor in use rubs larger, motion noise is also larger, and need to add lubricating oil, and flammable refrigerant and traditional machine oil intersolubility are poor, thereby, greatly limited the common use in the air-conditioning unit of traditional compressor and flammable refrigerant.
The utility model content
Therefore, the technical problems to be solved in the utility model is to overcome in traditional air-conditioning unit because of machine oil and the poor problem of the mutual capacitive of flammable refrigerant, thereby a kind of air-conditioning unit is provided, and this air-conditioning unit is used oilless (oil free) compressor, thereby flammable refrigerant is well application in unit.
If another technical problem to be solved in the utility model is to overcome existing domestic air conditioning unit and uses dangerous higher defect of flammable refrigerant, thereby provide a kind of flammable refrigerant and dangerous lower air-conditioning unit of using.
The compressor that the utility model adopts is the magnetic suspension centrifugal compressor, thereby this compressor is to provide a kind of new-type air-conditioning unit that can overcome above-mentioned defect without oil system.
For this reason, the utility model provides a kind of air-conditioning unit of applying flammable refrigerant, comprise successively at least one evaporimeter that is communicated with the magnetic suspension centrifugal compressor that arranges and form closed circuit, the cross valve be communicated with described magnetic suspension centrifugal compressor, the condenser be communicated with described cross valve, the throttling arrangement be communicated with described condenser, is communicated with described throttling arrangement, described evaporimeter is transmitted back to described magnetic suspension centrifugal compressor by flammable refrigerant by described cross valve.
Described evaporimeter is one.
Described evaporimeter is at least two, and at least two described evaporimeters are arranged in parallel.
Also comprise the checkout gear of whether revealing for detection of refrigerant, the magnetic valve that is arranged at least one described evaporimeter two ends on the closed circuit of described air-conditioning unit and for the detection signal of receiving detection device and control according to detection signal the control assembly that described magnetic valve opens or cuts out.
Described throttling arrangement is electric expansion valve.
Described condenser is the Wind-cooling type condenser.
Described evaporimeter is the Wind-cooling type evaporimeter.
Described flammable refrigerant is a kind of in R32, R290, R161.
The air-conditioning unit that the utility model provides has the following advantages:
1. the air-conditioning unit of the flammable refrigerant of the application that the utility model provides, comprise being communicated with successively arranging and forming magnetic suspension centrifugal compressor, the cross valve be communicated with described magnetic suspension centrifugal compressor, the condenser be communicated with described cross valve, the throttling arrangement be communicated with described condenser of closed circuit and at least one evaporimeter be communicated with described throttling arrangement, described evaporimeter is transmitted back to described magnetic suspension centrifugal compressor by flammable refrigerant by described cross valve.The utility model is used the magnetic suspension centrifugal compressor to make the bearing movable parts be suspended in fully in the air, and compressor is fully without the friction operation, and structure quake approaches zero, and the operation noise is low, without expensive damping accessory; And the starting current of unit is low, the single compressor starting current only has 2A, during start, only needs the electric current of 2A that bearing is suspended, and starting torque is very little, to the impact minimum of electrical network; The magnetic suspension centrifugal compressor that the utility model provides is without oil design, thus in system without considering oil syringe, the design of the equipment such as oil-liquid separator, also reduced the expense of these equipment maintenance aspects in the future simultaneously; In addition, because system makes the heat transfer effect of condenser and evaporimeter more favourable without oil, under equal conditions performance is more excellent to make unit, and efficiency is higher; What is more important, because unit is without the oil machine group, thereby flammable refrigerant well uses in the air-conditioning unit.
2. the air-conditioning unit of the flammable refrigerant of the utility model provides application, described evaporimeter preferably is set at least two, and at least two described evaporimeters are arranged in parallel, and this kind of set-up mode can be regulated with the capacity of main frame according to actual needs.
3. the air-conditioning unit of the flammable refrigerant of the utility model provides application, also comprise the checkout gear of whether revealing for detection of refrigerant, the magnetic valve that is arranged at least one described evaporimeter two ends on the closed circuit of described air-conditioning unit and for the detection signal of receiving detection device and control according to detection signal the control assembly that described magnetic valve opens or cuts out.During use, when if checkout gear detects coolant leakage, will give control assembly a signal that means coolant leakage, control assembly according to this signal by the closed electromagnetic valve in closed circuit, if and leakage signal do not detected, checkout gear will be given the signal of a normal operation of control assembly, and control assembly will not start the shutoff operation of magnetic valve, thereby makes closed circuit continue operation.Therefore, after adding checkout gear, magnetic valve and control assembly, owing to flammable secondary refrigerant leakage being detected, closed electromagnetic valve, cut off indoor set and outdoor unit heat exchanger by shut electromagnetic valve, even make indoor set leak, leakage rate also only has the indoor heat exchanger of indoor set and refrigerant in the pipeline be connected, thereby the reduction leakage rate, the security that improves air-conditioning.
The accompanying drawing explanation
For content of the present utility model is more likely to be clearly understood, below according to specific embodiment of the utility model also by reference to the accompanying drawings, the utility model is described in further detail, wherein
Fig. 1 is the system construction drawing of the air-conditioning unit that provides of embodiment 1;
Fig. 2 is the system construction drawing of the air-conditioning unit that provides of embodiment 2;
Fig. 3 is the system construction drawing of the air-conditioning unit that provides of embodiment 3;
Fig. 4 is the system construction drawing of the air-conditioning unit that provides of embodiment 4.
In figure, Reference numeral is expressed as:
1-magnetic suspension centrifugal compressor; The 2-cross valve; The 3-condenser; The 4-throttling arrangement; The 5-evaporimeter; 9,10-magnetic valve; The 11-checkout gear; The 12-control assembly.
The specific embodiment
embodiment 1
As shown in Figure 1, the present embodiment provides a kind of air-conditioning unit of applying flammable refrigerant, comprise being communicated with successively arranging and forming magnetic suspension centrifugal compressor 1, the cross valve 2 be communicated with described magnetic suspension centrifugal compressor 1, the condenser 3 be communicated with described cross valve 2, the throttling arrangement 4 be communicated with described condenser 3 of closed circuit and the evaporimeter 5 be communicated with described throttling arrangement 4, described evaporimeter 5 is transmitted back to described magnetic suspension centrifugal compressor 1 by flammable refrigerant by described cross valve 2.
In the present embodiment, described evaporimeter 5 is one, and certainly, for actual needs can arrange a plurality of evaporimeters again according to unit capacity, at this, a plurality of implications is for being greater than or equal to two.In the present embodiment, described evaporimeter 5 is the Wind-cooling type evaporimeter, and described condenser 3 is the Wind-cooling type condenser.
In the present embodiment, described throttling arrangement 4 is electric expansion valve, and at this, electric expansion valve is a kind of preferred set-up mode, in order to realize the throttling purpose, can also adopt other throttling arrangement well known in the art.
The air-conditioning unit that the present embodiment provides, described flammable refrigerant is a kind of in R32, R290, R161.
The process of refrigerastion of the air-conditioning unit that the present embodiment provides is: magnetic suspension centrifugal compressor 1 is compressed into the high pressure saturated gas by refrigerant, then the high pressure saturated gas is outputed in condenser 3 and is condensed into liquid refrigerants through cross valve 2, liquid refrigerants in entering evaporimeter 5 after throttling arrangement 4 throttlings, and be evaporated into gaseous coolant and get back to magnetic suspension centrifugal compressor 1, complete kind of refrigeration cycle one time.
The process that heats of the air-conditioning unit that the present embodiment provides is: magnetic suspension centrifugal compressor 1 is input to the saturated gaseous coolant of high pressure in evaporimeter 5 by cross valve 2, now, evaporimeter 5 plays the effect of condensation, described gaseous state is condensed into to liquid refrigerants, liquid refrigerants enters condenser 3 after by throttling arrangement 4 throttlings, now, condenser 3 plays the effect of evaporation, condenser 3 flashes to gaseous coolant by liquid refrigerants, gaseous coolant is got back to magnetic suspension centrifugal compressor 1 by cross valve 2, completes and once heats circulation.
As shown in Figure 2, the present embodiment provides a kind of air-conditioning unit of applying flammable refrigerant, it is the improvement on embodiment 1 basis, the air-conditioning unit in the present embodiment and unique different being of embodiment 1: described evaporimeter 5 is for a plurality of, and a plurality of described evaporimeter 5 is arranged in parallel.
The air-conditioning unit that the present embodiment provides has better working effect.
As shown in Figure 3, the present embodiment is the improvement on embodiment 1 basis, increased magnetic valve 9,10 on the basis of the air-conditioning unit that it provides at embodiment 1, the checkout gear 11 of gas leakage and control assembly 12, described magnetic valve 9,10 arranges the two ends of described evaporimeter 5.
The air-conditioning unit of the flammable refrigerant of application that the present embodiment provides, described flammable refrigerant is a kind of in R32, R290, R161.
During use, when if checkout gear 11 detects flammable coolant leakage, mean the signal of flammable coolant leakage will to control assembly 12, control assembly 12 is closed the magnetic valve 9,10 in closed circuit according to this signal, if and leakage signal do not detected, checkout gear 11 will be given the signal of control assembly 12 normal operations, and control assembly 12 will not start the shutoff operation of magnetic valve 9,10, thereby makes closed circuit continue operation.Therefore, after adding checkout gear 11, magnetic valve 9,10 and control assembly 12, owing to flammable secondary refrigerant leakage being detected, magnetic valve 9,10 cuts out, and by shut electromagnetic valve, cuts off indoor set and outdoor unit heat exchanger, even make indoor set leak, leakage rate also only has the indoor heat exchanger of indoor set and flammable refrigerant in the pipeline be connected, thereby reduces leakage rate, the security that improves air-conditioning.
embodiment 4
As shown in Figure 4, the present embodiment is the improvement on embodiment 2 bases, increased checkout gear 11 and the control assembly 12 of magnetic valve 9,10, flammable secondary refrigerant leakage on the basis of the air-conditioning unit that it provides at embodiment 2, described magnetic valve 9,10 is arranged on the two ends of one of them described evaporimeter 5.
The air-conditioning unit that the present embodiment provides, described flammable refrigerant is a kind of in R32, R290, R161.
During use, when if checkout gear 11 detects flammable coolant leakage, mean the signal of flammable coolant leakage will to control assembly 12, control assembly 12 is closed the magnetic valve 9,10 in closed circuit according to this signal, if and leakage signal do not detected, checkout gear 11 will be given the signal of control assembly 12 normal operations, and control assembly 12 will not start the shutoff operation of magnetic valve 9,10, thereby makes closed circuit continue operation.Therefore, after adding checkout gear 11, magnetic valve 9,10 and control assembly 12, owing to flammable secondary refrigerant leakage being detected, magnetic valve 9,10 cuts out, cut off indoor set and outdoor unit heat exchanger by shut electromagnetic valve, even make indoor set leak, leakage rate also only has the indoor heat exchanger of indoor set and flammable refrigerant in the pipeline be connected, thereby the reduction leakage rate, the security that improves air-conditioning.
Obviously, above-described embodiment is only for example clearly is described, and is not the restriction to embodiment.For those of ordinary skill in the field, can also make other changes in different forms on the basis of the above description, and renewal afterwards is exhaustive without also giving all embodiments here for flammable refrigerant.And the apparent variation of being extended out thus or change are still in protection domain of the present utility model.
Claims (8)
1. an air-conditioning unit of applying flammable refrigerant, it is characterized in that: comprise successively at least one evaporimeter (5) that is communicated with the magnetic suspension centrifugal compressor (1) that arranges and form closed circuit, the cross valve (2) be communicated with described magnetic suspension centrifugal compressor (1), the condenser (3) be communicated with described cross valve (2), the throttling arrangement (4) be communicated with described condenser (3), is communicated with described throttling arrangement (4), described evaporimeter (5) is transmitted back to described magnetic suspension centrifugal compressor (1) by flammable refrigerant by described cross valve (2).
2. the air-conditioning unit of the flammable refrigerant of application according to claim 1, it is characterized in that: described evaporimeter (5) is one.
3. the air-conditioning unit of the flammable refrigerant of application according to claim 1, it is characterized in that: described evaporimeter (5) is at least two, and at least two described evaporimeters (5) are arranged in parallel.
4. according to the air-conditioning unit of the flammable refrigerant of the described application of any one in claim 1-3, it is characterized in that: also comprise the checkout gear (11) of whether revealing for detection of flammable refrigerant, the magnetic valve (9,10) that is arranged at least one described evaporimeter (5) two ends on the closed circuit of described air-conditioning unit and for the detection signal of receiving detection device (11) and control according to detection signal the control assembly (12) that described magnetic valve (9,10) opens or cuts out.
5. the air-conditioning unit of the flammable refrigerant of application according to claim 4, it is characterized in that: described throttling arrangement (4) is electric expansion valve.
6. the air-conditioning unit of the flammable refrigerant of application according to claim 4, it is characterized in that: described condenser (3) is the Wind-cooling type condenser.
7. the air-conditioning unit of the flammable refrigerant of application according to claim 4, it is characterized in that: described evaporimeter (5) is the Wind-cooling type evaporimeter.
8. the air-conditioning unit of the flammable refrigerant of application according to claim 4 is characterized in that:
Described flammable refrigerant is a kind of in R32, R290, R161.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320317296.0U CN203349586U (en) | 2013-06-04 | 2013-06-04 | Air conditioning unit using flammable coolants |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320317296.0U CN203349586U (en) | 2013-06-04 | 2013-06-04 | Air conditioning unit using flammable coolants |
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| Publication Number | Publication Date |
|---|---|
| CN203349586U true CN203349586U (en) | 2013-12-18 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320317296.0U Expired - Fee Related CN203349586U (en) | 2013-06-04 | 2013-06-04 | Air conditioning unit using flammable coolants |
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| Country | Link |
|---|---|
| CN (1) | CN203349586U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106801920A (en) * | 2017-02-17 | 2017-06-06 | 海信科龙电器股份有限公司 | A kind of recuperated cycle system and its control method, air-conditioning |
| CN110895019A (en) * | 2018-09-12 | 2020-03-20 | 奥克斯空调股份有限公司 | Air conditioner refrigerant leakage detection method and air conditioner using same |
| US11435124B2 (en) | 2018-02-28 | 2022-09-06 | Carrier Corporation | Refrigeration system with leak detection |
-
2013
- 2013-06-04 CN CN201320317296.0U patent/CN203349586U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106801920A (en) * | 2017-02-17 | 2017-06-06 | 海信科龙电器股份有限公司 | A kind of recuperated cycle system and its control method, air-conditioning |
| US11435124B2 (en) | 2018-02-28 | 2022-09-06 | Carrier Corporation | Refrigeration system with leak detection |
| CN110895019A (en) * | 2018-09-12 | 2020-03-20 | 奥克斯空调股份有限公司 | Air conditioner refrigerant leakage detection method and air conditioner using same |
| CN110895019B (en) * | 2018-09-12 | 2021-03-12 | 奥克斯空调股份有限公司 | Air conditioner refrigerant leakage detection method and air conditioner using same |
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| Date | Code | Title | Description |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20131218 |
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| CF01 | Termination of patent right due to non-payment of annual fee |