CN203798006U - Variable-refrigerant-flow unit - Google Patents
Variable-refrigerant-flow unit Download PDFInfo
- Publication number
- CN203798006U CN203798006U CN201420145384.1U CN201420145384U CN203798006U CN 203798006 U CN203798006 U CN 203798006U CN 201420145384 U CN201420145384 U CN 201420145384U CN 203798006 U CN203798006 U CN 203798006U
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- CN
- China
- Prior art keywords
- valve
- condenser
- compressor
- port
- block
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
- 230000005494 condensation Effects 0.000 claims description 4
- 238000009833 condensation Methods 0.000 claims description 4
- 230000005611 electricity Effects 0.000 claims description 4
- 239000003507 refrigerant Substances 0.000 abstract description 17
- 238000005057 refrigeration Methods 0.000 abstract description 6
- 239000003921 oil Substances 0.000 description 9
- 239000010725 compressor oil Substances 0.000 description 5
- 239000002826 coolant Substances 0.000 description 3
- 238000010438 heat treatment Methods 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 238000004378 air conditioning Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 230000008014 freezing Effects 0.000 description 2
- 238000007710 freezing Methods 0.000 description 2
- 238000010276 construction Methods 0.000 description 1
- 230000008020 evaporation Effects 0.000 description 1
- 238000001704 evaporation Methods 0.000 description 1
Classifications
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
- Y02B30/00—Energy efficient heating, ventilation or air conditioning [HVAC]
- Y02B30/70—Efficient control or regulation technologies, e.g. for control of refrigerant flow, motor or heating
Landscapes
- Applications Or Details Of Rotary Compressors (AREA)
Abstract
The utility model provides a variable-refrigerant-flow unit. The variable-refrigerant-flow unit comprises a compressor, an oil separator, a four-way valve, a first condenser, a first electronic expansion valve, a high-pressure check valve, a low-pressure check valve, an air separator, a block valve, a second condenser and a second electronic expansion valve. The compressor, the oil separator and the four-way valve are connected sequentially, the first condenser, the first electronic expansion valve, the high-pressure check valve, the low-pressure check valve and the air separator are sequentially connected with a first capillary port of the four-way valve and then connected with the compressor, a second capillary port of the four-way valve is connected with the air separator, and a third capillary port of the four-way valve is connected with the low-pressure check valve. A first port of the block valve is connected between the oil separator and the four-way valve, a second port of the block valve is connected between the four-way valve and the air separator, a third port of the block valve is connected between the four-way valve and the low-pressure check valve, and the second port is communicated with the third port when power is provided; the second condenser and the second electronic expansion valve are sequentially connected with a fourth port of the block valve and then connected between the first electronic expansion valve and the high-pressure check valve, and the first port is communicated with the fourth port when power is not provided. The variable-refrigerant-flow unit has the advantages that since the block valve and the second condenser are arranged additionally, refrigerant flow volume can be met in heavy-load refrigeration, required power can be achieved, pipeline connection is reduced, and the variable-refrigerant-flow unit is greatly structurally simplified.
Description
Technical field
The utility model relates to air-conditioning technique field, particularly a kind of multi-connected machine.
Background technology
Multi-connected machine refers to that an off-premises station connects two or more indoor sets by pipe arrangement, and outside adopts the primary coolant air-conditioning system of air-cooled heat exchange form, the direct evaporation and heat-exchange form of indoor employing.Multi-connected machine system obtains increasingly extensive application at present in small and medium construction and part public building.
The outer machine of multi-connected machine single module is up to 16 at present, conventionally can only adopt the outer machine parallel connection of 2-3 platform single module formula to reach the mode of required number for the medium and small project project that needs 20-30 left and right.
But, because the structure that the mode of the outer machine parallel connection of multiple single modules need to repeat is more, making whole device structure complexity, the space taking is larger.
Therefore, how to provide a kind of multi-connected machine, to meet the requirement of larger number, thereby simplified apparatus is the current technical issues that need to address of those skilled in the art.
Utility model content
The purpose of this utility model is to provide a kind of multi-connected machine, to meet the requirement of larger number, thus simplified apparatus.
For solving the problems of the technologies described above, the utility model provides following technical scheme:
A kind of multi-connected machine, comprise: compressor, the oil eliminator that input is connected with the output of described compressor, the cross valve that supervisor is connected with the output of described oil eliminator, the first condenser being connected in turn with the first capillary mouth of described cross valve, the first electric expansion valve, high-pressure stop valve, low-pressure shutoff valve and gas separating device, the second capillary mouth of described cross valve is connected with described gas separating device input, the 3rd capillary mouth of described cross valve is connected with the output of described low-pressure shutoff valve, the output of described gas separating device is connected with the input of described compressor, it also comprises:
Block valve, the first of described block valve is connected between described oil eliminator and described cross valve, second mouthful of described block valve is connected between described cross valve and described gas separating device, the 3rd mouthful of described block valve is connected between described cross valve and low-pressure shutoff valve, and described block valve obtain when electric described in second mouthful be communicated with described the 3rd mouthful;
The second condenser and the second electric expansion valve that are connected in turn with the four-hole of described block valve, the output of described the second electric expansion valve is connected between described the first electric expansion valve and described high-pressure stop valve, and described in when described block valve dead electricity, first is communicated with described four-hole.
Preferably, in above-mentioned multi-connected machine, described compressor comprises frequency-changeable compressor in parallel and invariable frequency compressor.
Preferably, in above-mentioned multi-connected machine, described the first condenser and the second condenser include multiple condensations in parallel and divide device.
The utility model provides a kind of multi-connected machine, comprise: compressor, the oil eliminator that input is connected with the output of compressor, the cross valve that supervisor is connected with the output of oil eliminator, the first condenser being connected in turn with the first capillary mouth of cross valve, the first electric expansion valve, high-pressure stop valve, low-pressure shutoff valve and gas separating device, the second capillary mouth of cross valve is connected with gas separating device input, the 3rd capillary mouth of cross valve is connected with the output of low-pressure shutoff valve, the output of gas separating device is connected with the input of compressor, also comprise: block valve, its first is connected between oil eliminator and cross valve, second mouthful is connected between cross valve and gas separating device, the 3rd mouthful is connected between cross valve and low-pressure shutoff valve, and block valve obtains when electric second mouthful and is communicated with the 3rd mouthful, the second condenser and the second electric expansion valve that are connected in turn with the four-hole of block valve, the output of the second electric expansion valve is connected between the first electric expansion valve and high-pressure stop valve, and first is communicated with four-hole when block valve dead electricity.
When work, while freezing at full capacity, the power-off simultaneously of cross valve and block valve, cross valve will be responsible for the first capillary mouth and be communicated with, and block valve first is communicated with four-hole, thereby form two streams in parallel, the first condenser and the second condenser are worked simultaneously, respectively share a part of refrigerant, increased the circulation of refrigerant, improved the power of this multi-connected machine.
In the time of the little load of refrigeration, cross valve power-off, and that block valve obtains is electric, and close the second electric expansion valve, now, the supervisor of cross valve is communicated with the first capillary mouth, and second mouthful of block valve be communicated with the 3rd mouthful, because the second electric expansion valve is closed, therefore, only have the first condenser to bear refrigerant, and carry out refrigeration work, to save energy.
In the time heating, cross valve and block valve all electric, refrigerant, only by the first condenser, heats work.
To sum up, can in the time that refrigeration is loaded greatly, meet the circulation of refrigerant in the application by having increased block valve and the second condenser, reach power demand, the coolant quantity also can save little load time, in addition, has reduced the connection of pipeline, simplifies the structure greatly.
Brief description of the drawings
The structural representation of the multi-connected machine that Fig. 1 provides for the utility model embodiment.
Detailed description of the invention
Core of the present utility model is to provide a kind of multi-connected machine, to meet the requirement of larger number, thus simplified apparatus.
In order to make those skilled in the art person understand better the utility model scheme, below in conjunction with drawings and embodiments, the utility model is described in further detail.
Please refer to shown in Fig. 1, the utility model embodiment discloses a kind of multi-connected machine, comprise: compressor, the oil eliminator 3 that input is connected with the output of compressor, the cross valve 4 that supervisor is connected with the output of oil eliminator 3, the first condenser 6 being connected in turn with the first capillary mouth of cross valve 4, the first electric expansion valve 8, high-pressure stop valve 10, low-pressure shutoff valve 11 and gas separating device 12, the second capillary mouth of cross valve 4 is connected with gas separating device 12 inputs, the 3rd capillary mouth of cross valve 4 is connected with the output of low-pressure shutoff valve 11, the output of gas separating device 12 is connected with the input of compressor.On the basis of aforesaid way, this multi-connected machine also comprises: block valve 5, its first is connected between oil eliminator 3 and cross valve 4, second mouthful is connected between cross valve 4 and gas separating device 12, the 3rd mouthful is connected between cross valve 4 and low-pressure shutoff valve 11, and block valve 5 when electric second mouthful be communicated with the 3rd mouthful; The second condenser 7 being connected in turn with the four-hole of block valve 5 and the output of the second electric expansion valve 9, the second electric expansion valves 9 are connected between the first electric expansion valve 7 and high-pressure stop valve 10, and first is communicated with four-hole when block valve 5 dead electricity.
When work, in the time freezing at full capacity, cross valve 4 and block valve 5 power-off simultaneously, the supervisor of cross valve 4 is communicated with the first capillary mouth, and block valve 5 firsts are communicated with four-hole, thus form two streams in parallel.Concrete refrigerant trend: a wherein flow direction: compressor-oil eliminator 3-cross valve 4-first condenser 6-the first electric expansion valve 8-high-pressure stop valve 10-low-pressure shutoff valve 11-cross valve 4-gas separating device 12-compressor; Another flow direction: compressor-oil eliminator 3-block valve 5-second condenser 7-the second electric expansion valve 9-high-pressure stop valve 10-low-pressure shutoff valve 11-block valve 5-gas separating device 12-compressor.Move towards known by above-mentioned refrigerant, the first condenser 6 and the second condenser 7 are worked simultaneously, respectively share a part of refrigerant, thereby increase the circulation of refrigerant, and then improved the power of this multi-connected machine, in practice, thereby can make this multi-connected machine reach the requirement of 20-30 according to the selection of parameter.
In the time of the little load of refrigeration, cross valve 4 power-off, and block valve 5 must be electric, and close the second electric expansion valve 9, now, the supervisor of cross valve 4 is communicated with the first capillary mouth, and second mouthful of block valve 5 is communicated with the 3rd mouthful, the second electric expansion valve 9 is closed simultaneously, therefore, refrigerant can only pass through the first condenser 6, the concrete trend of refrigerant: compressor-oil eliminator 3-cross valve 4-first condenser 6-the first electric expansion valve 8-high-pressure stop valve 10-low-pressure shutoff valve 11-cross valve 4-gas separating device 12-compressor.By refrigerant move towards known, by switching on to block valve 5, and close the second electric expansion valve 9, can reduce the flow of refrigerant, in meeting flow, also can save energy.
In the time heating, cross valve 4 and block valve 5 all electric, now, the supervisor of cross valve 4 is communicated with the 3rd capillary mouth, and second mouthful of block valve 5 is communicated with the 3rd mouthful.The concrete flow direction of refrigerant: the first stream: compressor-oil eliminator 3-cross valve 4-low-pressure shutoff valve 11-high-pressure stop valve 10-the first condenser 6-cross valve 4-gas separating device 12-compressor; Another stream: compressor-oil eliminator 3-cross valve 4-low-pressure shutoff valve 11-high-pressure stop valve 10-the second condenser 7-block valve 5-gas separating device 12-compressor.Can complete the process heating by said process.
To sum up, can in the time that refrigeration is loaded greatly, meet the circulation of refrigerant in the application by having increased block valve 5 and the second condenser 7, reach power demand, the coolant quantity also can save little load time, in addition, has reduced the connection of pipeline, simplifies the structure greatly.
In specific embodiment, the frequency-changeable compressor 1 that compressor is set to be arranged in parallel and invariable frequency compressor 2, preferably, can select a frequency-changeable compressor 1, multiple invariable frequency compressors 2, and by these compressor parallels together.In practice, can select according to the requirement of different compressors the type of compressor, such as, also can only select invariable frequency compressor or only select frequency-changeable compressor, and all in protection domain.
The first condenser 6 providing in the application and the second condenser 7 include multiple condensations in parallel and divide device, in practice, can the first condenser 6 and the second condenser 7 be set to the structure that multiple condensations divide device parallel connection according to the flow of refrigerant, to reach the power requirement of this multi-connected machine.
In specific embodiment, the blower fan of this multi-connected machine can drive by direct current generator or alternating current generator, therefore, in order to improve the adjusting of blower fan wind speed range, in this multi-connected machine, not only comprises direct current generator but also comprise alternating current generator.
In this description, each embodiment adopts the mode of going forward one by one to describe, and what each embodiment stressed is and the difference of other embodiment, between each embodiment identical similar part mutually referring to.
To the above-mentioned explanation of the disclosed embodiments, make professional and technical personnel in the field can realize or use the utility model.To be apparent for those skilled in the art to the multiple amendment of these embodiment, General Principle as defined herein can, in the situation that not departing from spirit or scope of the present utility model, realize in other embodiments.Therefore, the utility model will can not be restricted to these embodiment shown in this article, but will meet the widest scope consistent with principle disclosed herein and features of novelty.
Claims (3)
1. a multi-connected machine, comprise: compressor, the oil eliminator (3) that input is connected with the output of described compressor, the cross valve (4) that supervisor is connected with the output of described oil eliminator (3), the first condenser (6) being connected in turn with the first capillary mouth of described cross valve (4), the first electric expansion valve (8), high-pressure stop valve (10), low-pressure shutoff valve (11) and gas separating device (12), the second capillary mouth of described cross valve (4) is connected with described gas separating device (12) input, the 3rd capillary mouth of described cross valve (4) is connected with the output of described low-pressure shutoff valve (11), the output of described gas separating device (12) is connected with the input of described compressor, it is characterized in that, also comprise:
Block valve (5), the first of described block valve (5) is connected between described oil eliminator (3) and described cross valve (4), second mouthful of described block valve (5) is connected between described cross valve (4) and described gas separating device (12), the 3rd mouthful of described block valve (5) is connected between described cross valve (4) and low-pressure shutoff valve (11), and described block valve (5) when electric described in second mouthful be communicated with described the 3rd mouthful;
The second condenser (7) and the second electric expansion valve (9) that are connected in turn with the four-hole of described block valve (5), the output of described the second electric expansion valve (9) is connected between described the first electric expansion valve (8) and described high-pressure stop valve (10), and described in when described block valve (5) dead electricity, first is communicated with described four-hole.
2. multi-connected machine according to claim 1, is characterized in that, described compressor comprises frequency-changeable compressor in parallel (1) and invariable frequency compressor (2).
3. multi-connected machine according to claim 1, is characterized in that, described the first condenser (6) and the second condenser (7) include multiple condensations in parallel and divide device.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420145384.1U CN203798006U (en) | 2014-03-27 | 2014-03-27 | Variable-refrigerant-flow unit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420145384.1U CN203798006U (en) | 2014-03-27 | 2014-03-27 | Variable-refrigerant-flow unit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203798006U true CN203798006U (en) | 2014-08-27 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420145384.1U Expired - Fee Related CN203798006U (en) | 2014-03-27 | 2014-03-27 | Variable-refrigerant-flow unit |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203798006U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104165475A (en) * | 2014-09-01 | 2014-11-26 | 广东志高暖通设备股份有限公司 | Multi-split air-conditioning system and heating method |
| CN104197499A (en) * | 2014-09-01 | 2014-12-10 | 广东志高暖通设备股份有限公司 | Multi-connection air conditioning system |
| CN104197432A (en) * | 2014-09-01 | 2014-12-10 | 广东志高暖通设备股份有限公司 | Multi-connection air conditioning system and refrigeration method |
| CN104197581A (en) * | 2014-09-01 | 2014-12-10 | 广东志高暖通设备股份有限公司 | Refrigerating and heating method and system of three-pipe heat recovery multiple-on-line system |
-
2014
- 2014-03-27 CN CN201420145384.1U patent/CN203798006U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104165475A (en) * | 2014-09-01 | 2014-11-26 | 广东志高暖通设备股份有限公司 | Multi-split air-conditioning system and heating method |
| CN104197499A (en) * | 2014-09-01 | 2014-12-10 | 广东志高暖通设备股份有限公司 | Multi-connection air conditioning system |
| CN104197432A (en) * | 2014-09-01 | 2014-12-10 | 广东志高暖通设备股份有限公司 | Multi-connection air conditioning system and refrigeration method |
| CN104197581A (en) * | 2014-09-01 | 2014-12-10 | 广东志高暖通设备股份有限公司 | Refrigerating and heating method and system of three-pipe heat recovery multiple-on-line system |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| 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: 20140827 |