CN201903214U - Low-temperature heating air conditioner - Google Patents
Low-temperature heating air conditioner Download PDFInfo
- Publication number
- CN201903214U CN201903214U CN2010205110679U CN201020511067U CN201903214U CN 201903214 U CN201903214 U CN 201903214U CN 2010205110679 U CN2010205110679 U CN 2010205110679U CN 201020511067 U CN201020511067 U CN 201020511067U CN 201903214 U CN201903214 U CN 201903214U
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- Prior art keywords
- compressor
- heat exchanger
- low
- temperature heating
- conditioning
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Abstract
The utility model discloses a low-temperature heating air conditioner, wherein a compressor is connected to an upper end of a liquid dispenser of the compressor through a communicating pipe, so as to form a refrigerant self-circulation loop; a pressure-sensing capillary pipe is connected between a four-way valve and an indoor heat exchanger; a flow control valve is arranged on the refrigerant self-circulation loop; and the connection and disconnection of the refrigerant self-circulation loop are controlled by controlling the opening degree of the flow, so as to control the size of the output volume of the compressor. The refrigerant self-circulation loop is controlled to open and close by matching the pressure-sensing capillary pipe with the flow control valve. The traditional constant-speed constant-output volume compressor is changed into the compressor with the compressor output volume capable of being changed according to the mode of the air conditioner system, and the automatic switching of the compressor output volume is realized.
Description
Technical field
The utility model relates to field of air conditioning, refers in particular to a kind of low-temperature heating air-conditioning.
Background technology
Along with the continuous progress of society and the continuous development of science and technology, people more and more are concerned about the earth that we depend on for existence now, and most countries also has been fully recognized that the importance of environment to our human development in the world.Each state is all taking active and effective measure to improve environment, reduces and pollutes.This is wherein important also to be that the most urgent problem is exactly an energy problem, fundamentally solve energy problem, except seeking the new energy, energy-conservation be crucial also be the most direct at present effective important measures.In order to cooperate the demand in market, high efficiency energy saving air conditioner becomes the main developing direction in air-conditioning market, and existing air-conditioning system adopts the constant discharge compressor assembly, and promptly under refrigeration, the heating mode, the compressor air-discharging amount is constant substantially; On the other hand, the high energy efficiency air-conditioning on the market is for realizing the high energy efficiency ratio, compare the compressor air-discharging amount that low efficiency air-conditioning uses and reduce, thereby, cause that heating capacity generally descends under the state of heating, make air-conditioning under heating mode, comfortableness reduces.
Therefore, the utility model provides a kind of low-temperature heating air-conditioning, and it reaches the purpose that improves heating capacity when guaranteeing the air-conditioning high energy efficiency, improve the effect and the comfortableness of air-conditioner low-temperature heating simultaneously.
The utility model content
The utility model provides a kind of low-temperature heating air-conditioning, and efficiency and compressor displacement are constant during its refrigeration, and have improved compressor displacement when heating, to improve heating capacity and comfortableness.
The utility model is achieved in that
A kind of low-temperature heating air-conditioning, it includes: compressor, cross valve, indoor heat exchanger and outdoor heat exchanger, this cross valve is connected with this indoor heat exchanger, this outdoor heat exchanger and this compressor; This compressor by communicating pipe the upper end with the knockout of this compressor be connected, form a refrigerant self circular loop, and on the refrigerant self circular loop, be provided with flow control valve, and be used to control the conducting degree of refrigerant self circular loop, thus the size of control compressor displacement.
Preferably, described flow control valve is located on the compressor.
Preferably, this low-temperature heating air-conditioning also comprises a pressure sensing capillary, the one end is connected between this cross valve and this indoor heat exchanger, the other end is connected in this flow control valve place, it is used to detect the pressure of this indoor heat exchanger outlet side cold-producing medium, and cooperating the open degree of controlling this flow control valve with this flow control valve, the pressure sensing capillary is controlled the open degree of flow control valve according to the pressure of detected indoor heat exchanger side, controls the duty of refrigerant self circular loop.
Preferably, under refrigeration mode, this pressure sensing capillary detection to pressure limit when being 0.4～0.6MPa, the open degree of this flow control valve is a complete opening, this communicating pipe communicates with this knockout, and refrigerant self circular loop and refrigerant circulation circuit are worked simultaneously, realizes that little discharge capacity heats.
Preferably, under heating mode, this pressure sensing capillary detection to pressure limit when being 1.6～2.0MPa, the open degree of this flow control valve is zero, and this communicating pipe does not communicate with this knockout, and the refrigerant self circular loop is closed, refrigerant circulation circuit work realizes that big discharge capacity heats.
Preferably, the flow process of this refrigerant self circular loop is: compressor → communicating pipe → compressor.
Preferably, under refrigeration mode, the flow process of this refrigerant circulation circuit is: compressor → cross valve → outdoor heat exchanger → indoor heat exchanger → cross valve → compressor.
Preferably, under heating mode, the flow process of this refrigerant circulation circuit is: compressor → cross valve → indoor heat exchanger → outdoor heat exchanger → cross valve → compressor.
Technique effect of the present utility model:
A kind of low-temperature heating air-conditioning of the utility model, by cooperating of pressure sensing capillary and flow control valve, the open and close of control refrigerant self circular loop, compressor converted the becoming of traditional constant speed constant discharge can be changed compressor displacement according to air-conditioning system pattern of living in, and realize the automatic switchover of compressor displacement.Under refrigeration mode, refrigerant self circular loop and refrigerant circulation circuit are opened simultaneously, and the efficiency of air-conditioning system is identical with the common air-conditioning system, the air-conditioning system operate as normal; Under heating mode, close the refrigerant self circular loop, only open refrigerant circulation circuit, compressor displacement increases.
Description of drawings
Fig. 1 is the system's control chart under the utility model low-temperature heating air conditioner refrigerating pattern;
Fig. 2 is the system's control chart under the utility model low-temperature heating air-conditioning heating mode.
The specific embodiment
Below in conjunction with accompanying drawing embodiment of the present utility model is elaborated:
As shown in Figure 1.A kind of low-temperature heating air-conditioning, it includes: compressor 1, cross valve 2, indoor heat exchanger 3, and knockout 4, outdoor heat exchange 5, this cross valve 2 are connected, reach outdoor heat exchanger 5 and connect with blast pipe, the knockout 4 of this compressor 1, the indoor heat exchanger 3 of this compressor 1; This compressor 1 forms a refrigerant self circular loop by being connected with the upper end of this knockout 4 communicating pipe 11; Preferably, be provided with flow control valve 12 on this compressor 1, this flow control valve 12 is located at the end of communicating pipe 11, by the flow control valve conducting degree of 12 these communicating pipes 11 of control.
In order to control this flow valve accurately, be connected with pressure sensing capillary 6 between this cross valve 2 and this indoor heat exchanger 3, the one end is connected between this cross valve 2 and this indoor heat exchanger 3, the other end is connected in this flow control valve 12 places, it is used to detect the pressure of these indoor heat exchanger 3 sides, by detecting the pressure differential of indoor heat exchanger 3 sides and compressor 1 side, and detected pressure differential fed back to this flow control valve 12, to be used to control the open degree of this flow control valve 12, whether thereby reaching control refrigerant self circular loop is communicated with, change the discharge capacity of compressor 1, realize the purpose of automatic switchover compressor 1 discharge capacity.Preferably, can reach the open degree of control flow control valve 12 by controlling spring and the slide block that flow-control is sent out.Under heating mode, close the refrigerant self circular loop, the refrigerant circulation circuit work under the refrigeration mode, the discharge capacity of increase compressor; And under refrigeration mode, open the refrigerant self circular loop, work simultaneously with refrigerant circulation circuit under the heating mode, and then realize the little discharge capacity of compressor.
This low-temperature heating air-conditioning also includes structures such as stop valve, filter, throttle capillary tube and tracheae, liquid pipe, the refrigeration system of its operation principle and prior art, the operation principle of heating are identical, belonged to prior art, the utility model does not repeat them here.
Continuation is referring to shown in Figure 1, and the circulating path of cold media gas is shown in arrow among the figure.When the pressure that detects indoor heat exchanger 3 sides when this pressure sensing capillary 6 is low pressure, be that the pressure limit of indoor heat exchanger side is when being 0.4～0.6Mpa, air-conditioning system judges that current air-conditioning pattern of living in is a refrigeration mode, the open degree of this flow control valve 12 is for opening fully, at this moment, this communicating pipe 11 communicates with this knockout 4, the work of refrigerant self circular loop, air-conditioning system is moved refrigerant circulation circuit and refrigerant self circular loop simultaneously, realizes float amount refrigeration.Wherein, the flow process of refrigerant self circular loop is: compressor → communicating pipe → compressor; And the refrigerant circulation circuit under the refrigeration mode is: compressor → cross valve → outdoor heat exchanger → indoor heat exchanger → cross valve → compressor.
Referring to shown in Figure 2, the circulating path of cold media gas is shown in arrow among the figure.When press judging that current power sensing capillary 6 detects the pressure position high pressure of indoor heat exchanger 3 sides, be that the pressure limit of indoor heat exchanger side is when being 1.6～2.0MPa, air-conditioning system judges that current pattern of living in is a heating mode, the open degree of this flow control valve 12 is zero (being in closed condition), at this moment, this communicating pipe 11 does not communicate with this knockout 4, the refrigerant self circular loop is closed, refrigerant circulation circuit under the air-conditioning system operation heating mode, be equivalent to compressor displacement and increase, satisfy the demand of the big discharge capacity under the heating mode.Wherein, the refrigerant circulation circuit under the heating mode is: compressor → cross valve → indoor heat exchanger → outdoor heat exchanger → cross valve → compressor.
Preferably, under refrigeration mode, heating mode, change the mode of communicating of the inside of cross valve, change the refrigerant circulating path, make that refrigerant can be according to predetermined circuit cycle under refrigeration, the heating mode.
Only be specific embodiment of the utility model below, do not limit protection domain of the present utility model with this; Any replacement and the improvement done on the basis of not violating the utility model design all belong to protection domain of the present utility model.
Claims (8)
1. low-temperature heating air-conditioning, it includes: compressor, cross valve, indoor heat exchanger and outdoor heat exchanger, this cross valve is connected with this indoor heat exchanger, this outdoor heat exchanger and this compressor; It is characterized in that, this compressor by communicating pipe the upper end with the knockout of this compressor be connected, form a refrigerant self circular loop, and on the refrigerant self circular loop, be provided with flow control valve, be used to control the conducting degree of refrigerant self circular loop.
2. low-temperature heating air-conditioning as claimed in claim 1 is characterized in that described flow control valve is located on the compressor.
3. low-temperature heating air-conditioning as claimed in claim 1 is characterized in that, also comprises a pressure sensing capillary, and the one end is connected between this cross valve and this indoor heat exchanger, and the other end is connected in this flow control valve place.
4. low-temperature heating air-conditioning as claimed in claim 3 is characterized in that, under refrigeration mode, this pressure sensing capillary detection to pressure limit when being 0.4～0.6MPa, this flow control valve complete opening, this communicating pipe communicates with this knockout, the work of refrigerant self circular loop.
5. low-temperature heating air-conditioning as claimed in claim 3 is characterized in that, under heating mode, this pressure sensing capillary detection to pressure limit when being 1.6～2.0MPa, the open degree of this flow control valve is zero, and this communicating pipe does not communicate with this knockout, and the refrigerant self circular loop is closed.
6. as claim 3 or 4 each described low-temperature heating air-conditionings, it is characterized in that the flow process of this refrigerant self circular loop is: compressor → communicating pipe → compressor.
7. low-temperature heating air-conditioning as claimed in claim 3 is characterized in that, under refrigeration mode, the flow process of refrigerant circulation circuit is: compressor → cross valve → outdoor heat exchanger → indoor heat exchanger → cross valve → compressor.
8. low-temperature heating air-conditioning as claimed in claim 4 is characterized in that, under heating mode, the flow process of refrigerant circulation circuit is: compressor → cross valve → indoor heat exchanger → outdoor heat exchanger → cross valve → compressor.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010205110679U CN201903214U (en) | 2010-08-30 | 2010-08-30 | Low-temperature heating air conditioner |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010205110679U CN201903214U (en) | 2010-08-30 | 2010-08-30 | Low-temperature heating air conditioner |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201903214U true CN201903214U (en) | 2011-07-20 |
Family
ID=44273806
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010205110679U Expired - Fee Related CN201903214U (en) | 2010-08-30 | 2010-08-30 | Low-temperature heating air conditioner |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201903214U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102384602A (en) * | 2010-08-30 | 2012-03-21 | 珠海格力电器股份有限公司 | Low-temperature heating air conditioner |
| CN108180545A (en) * | 2017-12-28 | 2018-06-19 | 广东美的制冷设备有限公司 | Transducer air conditioning |
-
2010
- 2010-08-30 CN CN2010205110679U patent/CN201903214U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102384602A (en) * | 2010-08-30 | 2012-03-21 | 珠海格力电器股份有限公司 | Low-temperature heating air conditioner |
| CN102384602B (en) * | 2010-08-30 | 2013-08-07 | 珠海格力电器股份有限公司 | Low-temperature heating air conditioner |
| CN108180545A (en) * | 2017-12-28 | 2018-06-19 | 广东美的制冷设备有限公司 | Transducer air conditioning |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20110720 Termination date: 20130830 |