CN218511777U - Environment simulation equipment capable of solving cold balance oil return - Google Patents
Environment simulation equipment capable of solving cold balance oil return Download PDFInfo
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- CN218511777U CN218511777U CN202222711402.5U CN202222711402U CN218511777U CN 218511777 U CN218511777 U CN 218511777U CN 202222711402 U CN202222711402 U CN 202222711402U CN 218511777 U CN218511777 U CN 218511777U
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- oil return
- capillary
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- 238000004088 simulation Methods 0.000 title claims abstract description 23
- 230000007613 environmental effect Effects 0.000 claims abstract description 16
- 238000001035 drying Methods 0.000 claims description 14
- 238000005057 refrigeration Methods 0.000 abstract description 20
- 239000003507 refrigerant Substances 0.000 abstract description 5
- 238000013461 design Methods 0.000 abstract description 2
- 230000002265 prevention Effects 0.000 abstract description 2
- 239000003921 oil Substances 0.000 description 30
- 238000012360 testing method Methods 0.000 description 6
- 239000007788 liquid Substances 0.000 description 3
- 238000000034 method Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000009863 impact test Methods 0.000 description 1
- 239000012535 impurity Substances 0.000 description 1
- 238000005461 lubrication Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012544 monitoring process Methods 0.000 description 1
- 239000010726 refrigerant oil Substances 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
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- 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
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Abstract
The utility model discloses an environmental simulation equipment that can solve cold balance oil return, including compressor, oil separator, condenser, drier-filter, first solenoid valve, first capillary, second capillary and evaporimeter. The utility model has the advantages of reasonable design, except setting up the first branch road that comprises first solenoid valve and first capillary between the input of evaporimeter and drier-filter's output, still be provided with the second branch road that comprises the second capillary, when the compressor operation, the refrigerant still can continuous circulation to the evaporimeter through the second capillary, guarantee that evaporimeter inside can have certain refrigeration flow, ensure that the refrigeration oil can in time flow back to the compressor, the damage appears because of lacking oil in the prevention compressor.
Description
Technical Field
The utility model relates to an environmental simulation equipment technical field, more specifically say, relate to an environmental simulation equipment that can solve cold balance oil return.
Background
In the temperature and humidity environment simulation process of the existing cold balance environment simulation equipment, one or a plurality of electromagnetic valves are usually used, and in the operation process of the equipment, the flow of a refrigerating medium is controlled by continuously opening or closing the electromagnetic valves. However, when the electromagnetic valve is closed, there is a possibility that no refrigerant passes through the inside of the evaporator, so that the refrigerant oil remaining inside the evaporator cannot flow back to the compressor for lubrication in time, and the compressor is damaged (i.e., burned).
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to overcome the above-mentioned defect among the prior art, provide an environmental simulation equipment that can solve cold balance oil return, it can make the inside remaining refrigeration oil of evaporimeter flow back to the compressor, avoids the compressor phenomenon of damaging to appear.
In order to realize the above purpose, the utility model provides a can solve environmental simulation equipment of cold balance oil return, including compressor, oil separator, condenser, drier-filter, first solenoid valve, first capillary, second capillary and evaporimeter, the high-pressure side of compressor is connected with oil separator's input, oil separator's output is connected with the input of condenser, the output of condenser is connected with drier-filter's input, the one end of first solenoid valve and the one end parallel connection of second capillary are at drier-filter's output, the other end of first solenoid valve is connected with the one end of first capillary, the other end of first capillary and the other end parallel connection of second capillary are at the input of evaporimeter, the low pressure end at the compressor is connected to the output of evaporimeter.
Preferably, the device further comprises a second solenoid valve and a third capillary tube, wherein one end of the second solenoid valve is connected to the output end of the drying filter, the other end of the second solenoid valve is connected to one end of the third capillary tube, and the other end of the third capillary tube is connected to the low-pressure end of the compressor.
Preferably, the equipment further comprises a third electromagnetic valve and a fourth capillary tube, wherein one end of the third electromagnetic valve is connected to a connecting pipeline between the output end of the oil separator and the input end of the condenser, the other end of the third electromagnetic valve is connected with one end of the fourth capillary tube, and the other end of the fourth capillary tube is connected to the low-pressure end of the compressor.
Preferably, the compressor is a medium-low temperature fully-closed compressor.
Preferably, the first electromagnetic valve and the second electromagnetic valve are respectively set as quick-opening electromagnetic valves. The third solenoid valve is set as a quick-opening solenoid valve.
Preferably, a high-voltage switch is connected to a connecting pipeline between the parallel connection end of the first electromagnetic valve, the second capillary tube and the second electromagnetic valve and the output end of the drying filter.
Preferably, a DTC expansion valve is connected between the output end of the dry filter and the high-pressure end of the compressor.
Preferably, a first needle valve for connecting a high-pressure gauge is connected between the output end of the dry filter and one end of the DTC expansion valve.
Preferably, the low-pressure end of the compressor is connected with a second needle valve used for connecting a low-pressure gauge.
Preferably, the oil return end of the oil separator is connected with the low-pressure end of the compressor.
Compared with the prior art, the beneficial effects of the utility model reside in that:
1. the utility model has the advantages of reasonable design, except setting up the first branch road that comprises first solenoid valve and first capillary between the input of evaporimeter and drier-filter's output, still be provided with the second branch road that comprises the second capillary, when the compressor operation, the refrigerant still can continuous circulation to the evaporimeter through the second capillary, guarantee that evaporimeter inside can have certain refrigeration flow, ensure that the refrigeration oil can in time flow back to the compressor, the damage appears because of lacking oil in the prevention compressor.
2. The utility model discloses set up second solenoid valve and third capillary between the low-pressure end of drier-filter's output and compressor, can prevent that the high temperature phenomenon from appearing in the compressor.
3. The utility model discloses set up third solenoid valve and fourth capillary between the low pressure end of compressor and oil separator's output, when compressor return air pressure crosses low excessively, the fourth capillary can be flowed through to steam refrigeration medium, improves compressor return air pressure, ensures compressor normal operating.
4. The utility model discloses set up the DTC expansion valve between the high-pressure side of compressor and drier-filter's output, when the high-pressure side of compressor appears high temperature, the DTC expansion valve is automatic to be opened, reduces the exhaust temperature of the high-pressure side of compressor, protects the compressor.
Drawings
In order to clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below, and it is obvious that the drawings in the description below are some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the drawings without creative efforts.
Fig. 1 is a schematic structural diagram of an environment simulation device capable of solving cold balance oil return provided by the embodiment of the present invention.
Detailed Description
To make the purpose, technical solution and advantages of the embodiments of the present invention clearer, the attached drawings in the embodiments of the present invention are combined to clearly and completely describe the technical solution in the embodiments of the present invention, and obviously, the described embodiments are part of the embodiments of the present invention, rather than all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by a person skilled in the art without making creative efforts belong to the protection scope of the present invention.
Referring to fig. 1, an embodiment of the present invention provides an environment simulation apparatus capable of solving cold balance oil return, including a compressor 1, an oil separator 2, a condenser 3, a drying filter 4, a first electromagnetic valve 8, a first capillary 9, a second capillary 10, a second electromagnetic valve 6, a third capillary 7, a third electromagnetic valve 11, a fourth capillary 12, an evaporator 16, and the like, and each component of the embodiment is described in detail below with reference to the accompanying drawings.
In the present embodiment, the compressor 1 may preferably be a low-temperature hermetic compressor in R404A. Of course, other types of compressors may be used depending on the actual needs.
In the present embodiment, the first solenoid valve 8, the second solenoid valve 6, and the third solenoid valve 11 may be preferably provided as quick-opening solenoid valves, respectively.
During specific connection, the high-pressure end of the compressor 1 is connected with the input end of the oil separator 2, the output end of the oil separator 2 is connected with the input end of the condenser 3, the output end of the condenser 3 is connected with the input end of the dry filter 4, one end of the first electromagnetic valve 8, one end of the second capillary tube 10 and one end of the second electromagnetic valve 6 are connected in parallel at the output end of the dry filter 4, the other end of the first electromagnetic valve 8 is connected with one end of the first capillary tube 9, the other end of the first capillary tube 9 and the other end of the second capillary tube 10 are connected in parallel at the input end of the evaporator 16, the other end of the second electromagnetic valve 6 is connected with one end of the third capillary tube 7, one end of the third electromagnetic valve 11 is connected with a connecting pipeline between the output end of the oil separator 2 and the input end of the condenser 3, the other end of the third electromagnetic valve 11 is connected with one end of the fourth capillary tube 12, and the output end of the evaporator 16, the other end of the third capillary tube 7 and the other end of the fourth capillary tube 12 are connected in parallel at the low-pressure end of the compressor 1.
Preferably, a high voltage switch 5 may be connected to a connection line between the parallel connection end of the first solenoid valve 8, the second capillary tube 10 and the second solenoid valve 6 and the output end of the dry filter 4. When the system pressure exceeds the set value, the high-voltage switch 5 acts to prevent the compressor from being damaged.
Preferably, a DTC expansion valve 13 may be connected between the output end of the filter-drier 4 and the high-pressure end of the compressor 1.
A first needle valve 15 used for being connected with a high-pressure gauge can be connected between the output end of the drying filter 4 and one end of the DTC expansion valve 13, and the high-pressure gauge is used for monitoring and operating the high-pressure in real time. In addition, a second needle valve 14 for connecting a low pressure gauge may be connected to a low pressure end of the compressor 1, and the low pressure gauge may monitor the operating low pressure in real time.
The utility model discloses a theory of operation as follows:
the high-temperature high-pressure gaseous refrigeration medium discharged by the high-pressure end of the compressor 1 flows through the oil separator 2, the oil separator 2 separates part of the refrigeration oil in the high-temperature high-pressure gaseous refrigeration medium, the wall of a loop pipe is effectively reduced to form an oil film, the refrigeration efficiency is improved, then the refrigeration medium flows through the condenser 3, the condenser 3 cools the high-temperature high-pressure gaseous medium discharged by the compressor 1 to become a normal-temperature high-pressure liquid refrigeration medium, then the normal-temperature high-pressure liquid refrigeration medium flows through the input end of the drying filter 4, the drying filter 4 effectively adsorbs loop water and filters solid impurities, and the pipeline blockage situation is prevented. Subsequently, the normal temperature liquid refrigerant flows through the first solenoid valve 8, the second capillary tube 10, the second solenoid valve 6, and the DTC expansion valve 13, respectively.
When the first solenoid valve 8 is opened, the refrigerant medium enters the evaporator 12 through the first capillary tube 9.
When the compressor 1 is operated and the first electromagnetic valve 8 is closed, the refrigeration medium can continuously flow to the evaporator 12 through the second capillary tube 10, so that a certain refrigeration flow can be ensured in the evaporator, the refrigeration oil can be ensured to flow back to the compressor 1 in time, and the compressor 1 is prevented from being damaged due to oil shortage.
Furthermore, the oil return end of the oil separator 2 may also be connected to the low pressure end of the compressor 1. The oil separator 2 separates a part of the refrigeration oil in the high-temperature high-pressure gaseous refrigeration medium and can return to the compressor 1.
When the second electromagnetic valve 6 is opened, the normal-temperature refrigeration medium can flow through the third capillary 7 and return to the low-pressure end of the compressor 1, so that the high-temperature phenomenon of the compressor 1 is prevented.
When the return air pressure of the compressor 1 is too low, the third electromagnetic valve 11 is opened, and the high-temperature and high-pressure gaseous refrigeration medium flows through the fourth capillary tube 12, so that the return air pressure of the compressor 1 is increased, and the normal operation of the compressor 1 is ensured.
When the high-pressure end of the compressor 1 has high temperature, the DTC expansion valve 13 can be automatically opened, the exhaust temperature of the high-pressure end of the compressor 1 is reduced, and the compressor 1 is protected.
In specific implementation, the environmental simulation device can be suitable for various temperature environmental simulation test devices, such as: the device comprises a constant temperature and humidity test chamber, a high and low temperature test chamber, a step-in constant temperature and humidity test room, a cold and hot impact test chamber, a rapid temperature change test chamber, a linear temperature change test chamber and the like.
It should be noted that the connections in the present embodiment are all pipeline connections. Furthermore, the terms "first," "second," "third," "fourth," and the like are used for descriptive purposes only and are not to be construed as indicating or implying relative importance, order, or to imply that the number of indicated features is significant. The features defined as "first", "second", "third", "fourth" may explicitly or implicitly include one or more features.
The above embodiments are preferred embodiments of the present invention, but the embodiments of the present invention are not limited to the above embodiments, and any other changes, modifications, substitutions, combinations, and simplifications which do not depart from the spirit and principle of the present invention should be equivalent replacement modes, and all are included in the scope of the present invention.
Claims (10)
1. The utility model provides an environment simulation equipment that can solve cold balance oil return which characterized in that: the oil separator is characterized by comprising a compressor (1), an oil separator (2), a condenser (3), a drying filter (4), a first electromagnetic valve (8), a first capillary tube (9), a second capillary tube (10) and an evaporator (16), wherein the high-pressure end of the compressor (1) is connected with the input end of the oil separator (2), the output end of the oil separator (2) is connected with the input end of the condenser (3), the output end of the condenser (3) is connected with the input end of the drying filter (4), one end of the first electromagnetic valve (8) and one end of the second capillary tube (10) are connected to the output end of the drying filter (4) in parallel, the other end of the first electromagnetic valve (8) is connected with one end of the first capillary tube (9), the other end of the first capillary tube (9) and the other end of the second capillary tube (10) are connected to the input end of the evaporator (16) in parallel, and the output end of the evaporator (16) is connected to the low-pressure end of the compressor (1).
2. The environmental simulation device capable of solving cold balance oil return according to claim 1, wherein: the drying filter is characterized by further comprising a second electromagnetic valve (6) and a third capillary tube (7), wherein one end of the second electromagnetic valve (6) is connected to the output end of the drying filter (4), the other end of the second electromagnetic valve (6) is connected with one end of the third capillary tube (7), and the other end of the third capillary tube (7) is connected to the low-pressure end of the compressor (1).
3. The environmental simulation equipment capable of solving cold balance oil return according to claim 1, wherein: the oil separator is characterized by further comprising a third electromagnetic valve (11) and a fourth capillary tube (12), one end of the third electromagnetic valve (11) is connected to a connecting pipeline between the output end of the oil separator (2) and the input end of the condenser (3), the other end of the third electromagnetic valve (11) is connected with one end of the fourth capillary tube (12), and the other end of the fourth capillary tube (12) is connected to the low-pressure end of the compressor (1).
4. The environmental simulation equipment capable of solving cold balance oil return according to claim 1, wherein: the compressor (1) is a medium-low temperature fully-closed compressor.
5. The environmental simulation equipment capable of solving cold balance oil return according to claim 2, wherein: the first electromagnetic valve (8) and the second electromagnetic valve (6) are respectively set to be quick-opening electromagnetic valves.
6. The environmental simulation equipment capable of solving cold balance oil return according to claim 3, wherein: the third electromagnetic valve (11) is set to be a quick-opening electromagnetic valve.
7. The environmental simulation equipment capable of solving cold balance oil return according to claim 2, wherein: and a high-voltage switch (5) is connected on a connecting pipeline between the parallel end of the first electromagnetic valve (8), the second capillary (10) and the second electromagnetic valve (6) and the output end of the drying filter (4).
8. The environmental simulation equipment capable of solving cold balance oil return according to claim 1, wherein: and a DTC expansion valve (13) is connected between the output end of the drying filter (4) and the high-pressure end of the compressor (1).
9. The environmental simulation apparatus capable of solving cold balance oil return according to claim 8, wherein: and a first needle valve (15) used for connecting a high-pressure gauge is connected between the output end of the drying filter (4) and one end of the DTC expansion valve (13).
10. The environmental simulation equipment capable of solving cold balance oil return according to claim 1, wherein: and the low-pressure end of the compressor (1) is connected with a second needle valve (14) used for connecting a low-pressure gauge.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222711402.5U CN218511777U (en) | 2022-10-14 | 2022-10-14 | Environment simulation equipment capable of solving cold balance oil return |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222711402.5U CN218511777U (en) | 2022-10-14 | 2022-10-14 | Environment simulation equipment capable of solving cold balance oil return |
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| Publication Number | Publication Date |
|---|---|
| CN218511777U true CN218511777U (en) | 2023-02-21 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202222711402.5U Active CN218511777U (en) | 2022-10-14 | 2022-10-14 | Environment simulation equipment capable of solving cold balance oil return |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115468590A (en) * | 2022-10-14 | 2022-12-13 | 广东德瑞检测设备有限公司 | Environment simulation equipment capable of solving cold balance oil return |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115468590A (en) * | 2022-10-14 | 2022-12-13 | 广东德瑞检测设备有限公司 | Environment simulation equipment capable of solving cold balance oil return |
| CN115468590B (en) * | 2022-10-14 | 2024-07-09 | 广东德瑞检测设备有限公司 | Environment simulation equipment capable of solving cold balance oil return |
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