CN203231594U - Unloading device suitable for refrigeration device and refrigeration device with same - Google Patents
Unloading device suitable for refrigeration device and refrigeration device with same Download PDFInfo
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- CN203231594U CN203231594U CN201320188053.1U CN201320188053U CN203231594U CN 203231594 U CN203231594 U CN 203231594U CN 201320188053 U CN201320188053 U CN 201320188053U CN 203231594 U CN203231594 U CN 203231594U
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- heat exchange
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- refrigeration plant
- exchange path
- exchanger rig
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Abstract
The utility model provides an unloading device suitable for a refrigeration device. The unloading device is arranged on a heat exchange pipeline in the refrigeration device, the heat exchange pipeline is communicated between an outdoor heat exchange device and an indoor heat exchange device, a first throttling device is arranged on the heat exchange pipeline, the unloading device comprises an unloading valve, a refrigerant heat exchange device and a second throttling device, the unloading valve is arranged on a bypass pipeline of the heat exchange pipeline, the refrigerant heat exchange device comprises a first heat exchange passage and a second heat exchange passage, the first heat exchange passage is arranged between the outdoor heat exchange device and the first throttling device, the second heat exchange passage is arranged between the unloading valve and a compressor of the refrigeration device, and the second throttling device is arranged between the unloading valve and the second heat exchange passage. By the aid of the unloading device, on one hand, the refrigeration device can unload parts of refrigerants to reduce pressure inside the refrigeration device through the unloading valve, on the other hand, the unloaded refrigerants can be reasonably used, and the use ratio of the unloaded refrigerants is increased. The utility model further provides the refrigeration device.
Description
Technical field
The utility model relates to art of refrigeration units, relates in particular to the relief arrangement that is suitable for refrigeration plant and the refrigeration plant with this relief arrangement.
Background technology
The climate type of Middle East is mainly tropical desert climate, the outdoor environment temperature in summer is higher, and be applied to the refrigeration plant of this area, especially aircondition belongs to T3 megathermal climate type in its corresponding operating mode type, and often its environment for use can reach 60 degrees centigrade, and such rugged environment, the inside that causes aircondition easily produces too high pressure, so general aircondition is difficult in this kind area enduringly, operation reliably.At this kind situation, Chinese patent CN2811876Y discloses a kind of air-conditioning relief arrangement, it comprises air compressor, condenser, capillary, evaporimeter, condenser, capillary, evaporimeter connects according to the order of sequence, advancing of air compressor, go out end and connect evaporimeter and condenser by air intake duct and blast pipe respectively, be connected to unloader between air intake duct and the condensator outlet, particularly, when the air-conditioning pressure inside is higher, as long as pass through unloader, just the part refrigerant directly can be flowed to compressor from condenser without capillary-compensated, reach the purpose that reduces the air-conditioning pressure inside with this.But this part refrigerant is that bypass is laid down, and does not play any effect in kind of refrigeration cycle, seems undoubtedly too waste not meet the environmental protection theory that current society advocates.
Therefore, be necessary to provide a kind of technological means to address the aforementioned drawbacks.
The utility model content
The purpose of this utility model is to overcome the defective of prior art, provide a kind of not only can reach the step-down purpose but also can rationally utilize this to lay down the relief arrangement that is suitable for refrigeration plant of the refrigerant of part by laying down the part refrigerant, simultaneously, also provide a kind of refrigeration plant with this relief arrangement.
The utility model is to realize like this, a kind of relief arrangement that is suitable for refrigeration plant, be arranged on the heat exchanging pipe between the outer heat-exchanger rig of communication chamber in the refrigeration plant and the indoor heat-exchanger rig, also be provided with the first throttle device on this heat exchanging pipe, described relief arrangement comprises unloader, refrigerant heat-exchanger rig and second throttling arrangement, and unloader is located on the pipeline of described heat exchanging pipe bypass; The refrigerant heat-exchanger rig comprises the first heat exchange path and the second heat exchange path, the described first heat exchange path is located between described outdoor heat exchange device and the described first throttle device, and it is with described outdoor heat exchange device, described first throttle device and is communicated with setting, the described second heat exchange path is located between the compressor of described unloader and described refrigeration plant, and it is with described unloader, described compressor and is communicated with setting; Second throttling arrangement is located between described unloader and the described second heat exchange path, and it is with described unloader, the described second heat exchange path and is communicated with setting.
Particularly, the described first heat exchange path is arranged in the described second heat exchange path;
Further, end at the described first heat exchange path that relies on described outdoor heat exchange device is provided with the first connection entrance, the other end at the described first heat exchange path that relies on described first throttle device is provided with the first connection outlet, and this first heat exchange path is communicated with entrance described first and is communicated with first heat exchanging segment that is provided with between the outlet for the refrigerant heat exchange with described first, end at the described second heat exchange path that relies on described first throttle device is provided with the second connection entrance, the other end at the described second heat exchange path that relies on described outdoor heat exchange device is provided with the second connection outlet, and this second heat exchange path is communicated with entrance described second and is communicated with second heat exchanging segment that is provided with between the outlet for the refrigerant heat exchange with described second, and described second heat exchanging segment is coated on described first heat exchanging segment.
Preferably, the cross section of described first heat exchanging segment is rectangular-shaped or tortuous shape.
Particularly, described outdoor heat exchange device includes condenser and is connected in the outdoor fan of this condenser.
Particularly, described indoor heat-exchanger rig includes evaporimeter and is connected in the indoor fan of this evaporimeter.
Particularly, dispose high-pressure stop valve between described first throttle device and the described indoor heat-exchanger rig, dispose low-pressure shutoff valve between described compressor and the described indoor heat-exchanger rig.
Further, described refrigeration plant also includes in order to store the fluid reservoir of the refrigerant after the heat exchange, and described fluid reservoir is located on the return line that is communicated with described indoor heat-exchanger rig, the described second heat exchange path.
Particularly, described refrigeration plant also includes cross valve, and four interfaces of described cross valve are connected to described compressor, described outdoor heat exchange device, the described second heat exchange path and described indoor heat-exchanger rig.
The utility model also provides a kind of refrigeration plant, comprises above-mentioned relief arrangement.
Technique effect of the present utility model is: by this relief arrangement, make refrigeration plant can lay down the part refrigerant to reduce its pressure inside by unloader on the one hand, the reliability of assurance system, can rationally utilize the refrigerant of laying down on the other hand, make it pass through the refrigerant heat-exchanger rig, improve the degree of supercooling of the refrigerant that flows to the first throttle device, both cut down the consumption of energy virtually, improve the refrigerating capacity of refrigeration plant again.
Description of drawings
Fig. 1 is in the schematic diagram of closed condition for the relief arrangement of refrigeration plant of the present utility model;
Fig. 2 is the structural representation of refrigerant heat-exchanger rig of the relief arrangement of Fig. 1;
Fig. 3 is in the schematic diagram of open mode for the relief arrangement of Fig. 1;
Another embodiment of Fig. 4 relief arrangement of the present utility model is in the schematic diagram of closed condition;
Fig. 5 is in the schematic diagram of open mode for the relief arrangement of Fig. 4.
The specific embodiment
In order to make the purpose of this utility model, technical scheme and advantage clearer, below in conjunction with drawings and Examples, the utility model is further elaborated.Should be appreciated that specific embodiment described herein only in order to explaining the utility model, and be not used in restriction the utility model.
See also Fig. 1 to shown in Figure 3, the utility model provides a kind of relief arrangement 10 that is suitable for refrigeration plant 100, refrigeration plant 100 include for the outdoor heat exchange device 20 of outdoor heat exchange, be used for indoor heat-exchanger rig 30 and compressor 40 with indoor heat exchange, outdoor heat exchange device 20, indoor heat-exchanger rig 30 and compressor 40 interconnect and arrange and form cooling cycle system, relief arrangement 10 is arranged on the heat exchanging pipe 91 between the outer heat-exchanger rig 20 of communication chamber in the refrigeration plant 100 and the indoor heat-exchanger rig 30, also be provided with first throttle device 50 on this heat exchanging pipe, and this first throttle device 50 and outdoor heat exchange device 20, indoor heat-exchanger rig 30 is and is communicated with setting.Relief arrangement 10 comprises unloader 11, refrigerant heat-exchanger rig 12 and second throttling arrangement 13, wherein, unloader 11 is located on the pipeline of heat exchanging pipe 91 bypass, be specially, between outdoor heat exchange device 20 and first throttle device 50, be provided with first pipeline 911, and in an end bypass that relies in first pipeline 911 of outdoor heat exchange device 20 second pipeline 912 is arranged, unloader 11 is located on second pipeline 912; Refrigerant heat-exchanger rig 12 comprises the first heat exchange path 14 and the second heat exchange path 15, the first heat exchange path 14 is located between outdoor heat exchange device 20 and the first throttle device 50, be specially, the first heat exchange path 14 is located at the other end that relies in first pipeline 911 of first throttle device 50, and it is with outdoor heat exchange device 20, first throttle device 50 and is communicated with setting; The second heat exchange path 15 is located between the compressor 40 of unloader 11 and refrigeration plant 100, be specially, the second heat exchange path 15 is located on the off-load pipeline 93 that is communicated with unloader 11 and the compressor 40 of refrigeration plant 100, and it is with unloader 11, compressor 40 and is communicated with setting; Second throttling arrangement 13 is located between unloader 11 and the second heat exchange path 15, be specially, off-load pipeline 93 is provided with the 3rd pipeline 913 between unloader 11 and the second heat exchange path 15, second throttling arrangement 13 is located on the 3rd pipeline 913, and it is with unloader 11, the second heat exchange path 15 and is communicated with setting.By this relief arrangement 10, make refrigeration plant 100 can lay down the part refrigerant to reduce its pressure inside by unloader 11 on the one hand, the reliability of assurance system, can rationally utilize the refrigerant of laying down on the other hand, make it pass through refrigerant heat-exchanger rig 12, improve the degree of supercooling of the refrigerant that flows to first throttle device 50, both cut down the consumption of energy virtually, improve the refrigerating capacity of refrigeration plant 100 again.
Embodiment one:
See also shown in Figure 2ly, the first heat exchange path 14 is arranged in the second heat exchange path 15, so that refrigerant heat-exchanger rig 12 forms the shell type heat-exchanger rigs, realizes the refrigerant heat exchange simply and effectively.In addition, also can select for use on the market plate-type heat-exchange device as the enforcement means.Further, end at the first heat exchange path 14 that relies on outdoor heat exchange device 20 is provided with the first connection entrance 141, the other end at the first heat exchange path 14 that relies on first throttle device 50 is provided with the first connection outlet 142, and this first heat exchange path 14 is communicated with entrance 141 first and is communicated with first heat exchanging segment 143 that is provided with between the outlet 142 for the refrigerant heat exchange with first, end at the second heat exchange path 15 that relies on first throttle device 50 is provided with the second connection entrance 151, the other end at the second heat exchange path 15 that relies on outdoor heat exchange device 20 is provided with the second connection outlet 152, and this second heat exchange path 15 is communicated with entrance 151 second and is communicated with second heat exchanging segment 153 that is provided with between the outlet 152 for the refrigerant heat exchange with second, second heat exchanging segment 153 is coated on first heat exchanging segment 143, flows so that the fluid in the fluid in the first heat exchange path 14 and the second heat exchange path 15 is subtend.Wherein, owing to be the subtend setting in the flow direction of the fluid of first heat exchanging segment 143 and the flow direction at the fluid of second heat exchanging segment 153, guarantee that preferably the refrigerant of the first heat exchange path 14 and the refrigerant of the second heat exchange path 15 carry out heat exchange operation.Preferably, the cross section of first heat exchanging segment 143 is rectangular-shaped or tortuous shape.If the cross section of first heat exchanging segment 143 is rectangular-shaped, the first heat exchange path of namely selecting for use 14 makes the refrigerant of the first heat exchange path 14 and the refrigerant of the second heat exchange path 15 simply directly carry out heat exchange for column or square shape; If the cross section of first heat exchanging segment 143 is tortuous shape, this tortuous shape is wavy, U-shaped shape, helical form etc., and adopt tortuous shape to be equivalent to increase effectively its heat exchange distance, make the refrigerant heat exchange fully of refrigerant and the second heat exchange path 15 of the first heat exchange path 14.
Please consult shown in Figure 1ly again, outdoor heat exchange device 20 includes condenser 21 and is connected in the outdoor fan 22 of this condenser 21, and indoor heat-exchanger rig 30 includes evaporimeter 31 and is connected in the indoor fan 32 of this evaporimeter 31.
Preferably, dispose high-pressure stop valve 60 between first throttle device 50 and the indoor heat-exchanger rig 30, be specially, be provided with the 4th pipeline 914 between first throttle device 50 and the indoor heat-exchanger rig 30, and the 4th pipeline 914 is provided with high-pressure stop valve 60; Dispose low-pressure shutoff valve 70 between compressor 40 and the indoor heat-exchanger rig 30, be specially, be provided with return line 92 between compressor 40 and the indoor heat-exchanger rig 30, and be provided with low-pressure shutoff valve 70 at this return line 92.Particularly, when the refrigerant that passes through from 50 throttlings of first throttle device passed through high-pressure stop valve 60, if the hypertonia of this refrigerant, high-pressure stop valve 60 can block the path between first throttle device 50 and the indoor heat-exchanger rig 30; In like manner, when the refrigerant that flows out from indoor heat-exchanger rig 30 through low-pressure shutoff valve 70 time, if the hypotony of this refrigerant, low-pressure shutoff valve 70 can block the path between compressor 40 and the indoor heat-exchanger rig 30.Further, refrigeration plant 100 also includes in order to store the fluid reservoir 80 of the refrigerant after the heat exchange, fluid reservoir 80 is located at heat-exchanger rig 30 in the communication chamber, on the return line 92 of the second heat exchange path 15, be specially, off-load pipeline 93 is connected on the return line 92 between compressor 40 and the low-pressure shutoff valve 70, fluid reservoir 80 is located on the return line 92 between compressor 40 and the off-load pipeline 93, fluid reservoir 80 can be received through the refrigerant after 12 heat exchange of refrigerant heat-exchanger rig and the refrigerant after indoor heat-exchanger rig heat exchange 30 heat exchange, can recycle after treatment in order to the refrigerant after the heat exchange.
In addition, first throttle device 50 and second throttling arrangement 13 have included capillary, throttling valve core and electric expansion valve, wherein, capillaceous acting as: during refrigeration, function capillaceous is the high-pressure liquid refrigerant that will come out from condenser 21, make its liquid refrigerants that becomes low pressure by throttling expansion, enter evaporimeter 31 again.Acting as of electric expansion valve: according to signals such as temperature, pressure, by electronic controller output control signal, regulate the throttling flow velocity automatically by electronic mode.So the circular flow of the refrigerant that first throttle device 50 passes through through the first heat exchange path 14 by capillary, throttling valve core and electronic expansion valve controls makes this refrigerant keep certain pressure in evaporimeter 31, the performance maximum cooling capacity; The circular flow of the refrigerant that second throttling arrangement 13 passes through by capillary, throttling valve core and the electronic expansion valve controls second heat exchange path 15, and make its throttling become the refrigerant of low-temp low-pressure.
Embodiment two:
See also 4 and Fig. 5 diagram, because the concrete structure of embodiment two includes the concrete structure of embodiment one, both distinctive points are, in embodiment two, refrigeration plant 100 also includes cross valve 16, thereby the concrete structure of relevant embodiment one is not described further at this, can be with reference to above-mentioned specific descriptions to embodiment one.Wherein, four interfaces of cross valve 16 are connected to compressor 40, outdoor heat exchange device 20, the second heat exchange path 15 and indoor heat-exchanger rig 30, be specially, cross valve 16 has first interface 161, second interface 162, the 3rd interface 163 and the 4th interface 164, first interface 161 is connected in compressor 40, second interface 162 is connected in outdoor heat exchange device 20, the three interfaces 163 and is connected in the second heat exchange path, 15, the four interfaces 164 and is connected in indoor heat-exchanger rig 30.When refrigeration plant 100 operations, when crossing hot gas through cross valve 40 from the low-temp low-pressure of indoor heat exchanger 30, it enters compressor 40 again from the 4th interface 164 to first interfaces 161, be collapsed into the gaseous coolant of HTHP then by compressor 40, simultaneously with its discharge; When the gaseous coolant of this HTHP passed through cross valve 40, it was from first interface, 161 to second interfaces 162, and the outer heat-exchanger rig 20 heat release condensations of inlet chamber again become the liquid refrigerant of HTHP; If refrigeration plant 100 is because of its internal pressure when too high, its unloader 11 can be opened and be communicated with second throttling arrangement 13, at this moment, the liquid refrigerant of HTHP that has part flows out from outdoor heat exchange device 20, flow into second throttling arrangement 13 by unloader 11 again, and the liquid refrigerant of this HTHP is when second throttling arrangement 13, it can throttling become low-temp low-pressure gas-liquid two-phase refrigerant, then, this low-temp low-pressure gas-liquid two-phase refrigerant flows into the second heat exchange path 15, and itself and the liquid refrigerant of HTHP that flows into the first heat exchange path 14 carry out heat exchange, afterwards, refrigerant after the heat exchange flow to cross valve 40, and flow to second interface 161 from its first interface 163, enter compressor 40 again, then, be collapsed into the gaseous coolant of HTHP again by compressor 40, to carry out next cycling.
The utility model also provides a kind of refrigeration plant 100, include for the outdoor heat exchange device 20 of outdoor heat exchange, be used for indoor heat-exchanger rig 30 and compressor 40 with indoor heat exchange, outdoor heat exchange device 20, indoor heat-exchanger rig 30 and compressor 40 interconnect and arrange and form cooling cycle system, between outdoor heat exchange device 20 and indoor heat-exchanger rig 30, also be provided with first throttle device 50, and this first throttle device 50 is with outdoor heat exchange device 20, indoor heat-exchanger rig 30 and is communicated with setting; Refrigeration plant 100 also includes above-mentioned relief arrangement 10.
Below in conjunction with diagram, the operation principle of relief arrangement 10 of the present utility model is further described:
In Fig. 1 or Fig. 4, the internal pressure of the refrigeration plant 100 of this moment is still big inadequately, and unloader 11 is in closed condition, and refrigeration plant 100 is carrying out the kind of refrigeration cycle operation.In Fig. 3 or Fig. 5, when the internal pressure of refrigeration plant 100 is excessive, unloader 11 can be opened, outdoor heat exchange device 20 is communicated with second throttling arrangement 13, at this moment, the liquid refrigerant of HTHP that has part flows out from outdoor heat exchange device 20, flow into second throttling arrangement 13 by unloader 11 again, and the liquid refrigerant of this HTHP is when second throttling arrangement 13, and it can throttling become low-temp low-pressure gas-liquid two-phase refrigerant, then, this low-temp low-pressure gas-liquid two-phase refrigerant flows into the second heat exchange path 15, and itself and the liquid refrigerant of HTHP that flows into the first heat exchange path 14 carry out heat exchange, place the degree of supercooling of the refrigerant of the first heat exchange path 14 with increase, afterwards, refrigerant after the heat exchange flows back to compressor 40, then, be collapsed into the gaseous coolant of HTHP again by compressor 40, to carry out next cycling.
The above only is the utility model preferred embodiment; its structure is not limited to the above-mentioned shape of enumerating; all any modifications of within spirit of the present utility model and principle, doing, be equal to and replace and improvement etc., all should be included within the protection domain of the present utility model.
Claims (10)
1. relief arrangement that is suitable for refrigeration plant is arranged in the refrigeration plant on the heat exchanging pipe between the outer heat-exchanger rig of communication chamber and indoor heat-exchanger rig, also is provided with the first throttle device on this heat exchanging pipe, it is characterized in that described relief arrangement comprises:
Unloader is located on the pipeline of described heat exchanging pipe bypass;
The refrigerant heat-exchanger rig, comprise the first heat exchange path and the second heat exchange path, the described first heat exchange path is located between described outdoor heat exchange device and the described first throttle device, and be with described outdoor heat exchange device, described first throttle device and be communicated with setting, the described second heat exchange path is located between the compressor of described unloader and described refrigeration plant, and is with described unloader, described compressor and is communicated with setting; And
Second throttling arrangement is located between described unloader and the described second heat exchange path, and is with described unloader, the described second heat exchange path and is communicated with setting.
2. the relief arrangement that is suitable for refrigeration plant as claimed in claim 1, it is characterized in that: the described first heat exchange path is arranged in the described second heat exchange path.
3. the relief arrangement that is suitable for refrigeration plant as claimed in claim 2, it is characterized in that: the end at the described first heat exchange path that relies on described outdoor heat exchange device is provided with the first connection entrance, the other end at the described first heat exchange path that relies on described first throttle device is provided with the first connection outlet, and this first heat exchange path is communicated with entrance described first and is communicated with first heat exchanging segment that is provided with between the outlet for the refrigerant heat exchange with described first, end at the described second heat exchange path that relies on described first throttle device is provided with the second connection entrance, the other end at the described second heat exchange path that relies on described outdoor heat exchange device is provided with the second connection outlet, and this second heat exchange path is communicated with entrance described second and is communicated with second heat exchanging segment that is provided with between the outlet for the refrigerant heat exchange with described second, and described second heat exchanging segment is coated on described first heat exchanging segment.
4. the relief arrangement that is suitable for refrigeration plant as claimed in claim 3, it is characterized in that: the cross section of described first heat exchanging segment is rectangular-shaped or tortuous shape.
5. the relief arrangement that is suitable for refrigeration plant as claimed in claim 1, it is characterized in that: described outdoor heat exchange device includes condenser and is connected in the outdoor fan of this condenser.
6. the relief arrangement that is suitable for refrigeration plant as claimed in claim 1, it is characterized in that: described indoor heat-exchanger rig includes evaporimeter and is connected in the indoor fan of this evaporimeter.
7. the relief arrangement that is suitable for refrigeration plant as claimed in claim 1 is characterized in that: dispose high-pressure stop valve between described first throttle device and the described indoor heat-exchanger rig, dispose low-pressure shutoff valve between described compressor and the described indoor heat-exchanger rig.
8. the relief arrangement that is suitable for refrigeration plant as claimed in claim 1, it is characterized in that: described refrigeration plant also includes in order to store the fluid reservoir of the refrigerant after the heat exchange, and described fluid reservoir is located on the return line that is communicated with described indoor heat-exchanger rig, the described second heat exchange path.
9. as each described relief arrangement that is suitable for refrigeration plant of claim 1-8, it is characterized in that: described refrigeration plant also includes cross valve, and four interfaces of described cross valve are connected to described compressor, described outdoor heat exchange device, the described second heat exchange path and described indoor heat-exchanger rig.
10. a refrigeration plant is characterized in that: comprise each described relief arrangement of claim 1-9.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320188053.1U CN203231594U (en) | 2013-04-15 | 2013-04-15 | Unloading device suitable for refrigeration device and refrigeration device with same |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320188053.1U CN203231594U (en) | 2013-04-15 | 2013-04-15 | Unloading device suitable for refrigeration device and refrigeration device with same |
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| Publication Number | Publication Date |
|---|---|
| CN203231594U true CN203231594U (en) | 2013-10-09 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320188053.1U Expired - Lifetime CN203231594U (en) | 2013-04-15 | 2013-04-15 | Unloading device suitable for refrigeration device and refrigeration device with same |
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| Country | Link |
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| CN (1) | CN203231594U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104879939A (en) * | 2014-02-28 | 2015-09-02 | 海尔集团公司 | Air-conditioning system |
-
2013
- 2013-04-15 CN CN201320188053.1U patent/CN203231594U/en not_active Expired - Lifetime
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104879939A (en) * | 2014-02-28 | 2015-09-02 | 海尔集团公司 | Air-conditioning system |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20131009 |