CN111946607B - Refrigerant pump cabinet detection device and refrigerant pump cabinet detection method - Google Patents
Refrigerant pump cabinet detection device and refrigerant pump cabinet detection method Download PDFInfo
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- CN111946607B CN111946607B CN202010761420.7A CN202010761420A CN111946607B CN 111946607 B CN111946607 B CN 111946607B CN 202010761420 A CN202010761420 A CN 202010761420A CN 111946607 B CN111946607 B CN 111946607B
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- refrigerant
- refrigerant pump
- pump cabinet
- detection device
- electromagnetic valve
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
- F04B51/00—Testing machines, pumps, or pumping installations
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
- F04B37/00—Pumps having pertinent characteristics not provided for in, or of interest apart from, groups F04B25/00 - F04B35/00
- F04B37/10—Pumps having pertinent characteristics not provided for in, or of interest apart from, groups F04B25/00 - F04B35/00 for special use
- F04B37/12—Pumps having pertinent characteristics not provided for in, or of interest apart from, groups F04B25/00 - F04B35/00 for special use to obtain high pressure
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
- F04B39/00—Component parts, details, or accessories, of pumps or pumping systems specially adapted for elastic fluids, not otherwise provided for in, or of interest apart from, groups F04B25/00 - F04B37/00
- F04B39/10—Adaptations or arrangements of distribution members
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
- F04B49/00—Control, e.g. of pump delivery, or pump pressure of, or safety measures for, machines, pumps, or pumping installations, not otherwise provided for, or of interest apart from, groups F04B1/00 - F04B47/00
- F04B49/06—Control using electricity
Abstract
The invention discloses a refrigerant pump cabinet detection device and a refrigerant pump cabinet detection method. The main pipeline is provided with an inlet end, an outlet end, a first electromagnetic valve, a first one-way valve, a first liquid storage tank, a second electromagnetic valve, a heat exchanger and a third electromagnetic valve which are sequentially arranged along the flow direction of a refrigerant, the first branch pipeline is provided with a second liquid storage tank and a fourth electromagnetic valve which are sequentially arranged along the flow direction of the refrigerant, the second branch pipeline is provided with a fifth electromagnetic valve, a compressor and a second one-way valve which are sequentially arranged along the flow direction of the refrigerant, and the first branch pipeline and the second branch pipeline are connected in parallel between the heat exchanger and the third electromagnetic valve. This application refrigerant pump cabinet detection device can avoid arousing the quality hidden danger when guaranteeing effective commodity inspection.
Description
Technical Field
The application relates to the technical field of refrigeration, in particular to a refrigeration pump cabinet detection device.
Background
Because the refrigerant pump is adopted for refrigeration at low temperature, the energy efficiency ratio is higher, and in order to save energy and reduce consumption, the refrigerant pump cabinet is often applied to the existing machine room to maintain the temperature in the machine room.
At present, after the refrigerant pump cabinet is produced, the traditional commodity inspection mode has two kinds:
firstly, only the tightness of the refrigerant pump is detected, when the tightness of the refrigerant pump is detected, an electric control part of a refrigerant pump cabinet is not detected, and a fault product is easy to flow to a client due to incomplete detection;
and secondly, the whole refrigerant pump cabinet is detected, and when the whole refrigerant pump cabinet is detected, the refrigerant pump in an idling state can generate certain abrasion, so that potential quality hazards are caused.
Disclosure of Invention
An object of this application is to provide a refrigerant pump cabinet detection device, avoids arousing the quality hidden danger when guaranteeing effective commodity inspection.
In order to achieve the purpose, the application adopts the following technical scheme:
a refrigerant pump cabinet detection device, comprising:
the main pipeline is provided with an inlet end, an outlet end, a first electromagnetic valve, a first one-way valve, a first liquid storage tank, a second electromagnetic valve, a heat exchanger and a third electromagnetic valve which are sequentially arranged along the flow direction of the refrigerant;
the first branch pipeline is provided with a second liquid storage tank and a fourth electromagnetic valve which are sequentially arranged along the flow direction of the refrigerant;
the second branch pipeline is provided with a fifth electromagnetic valve, a compressor and a second one-way valve which are sequentially arranged along the flow direction of the refrigerant;
the first branch pipeline and the second branch pipeline are connected between the heat exchanger and the third electromagnetic valve in parallel.
In some embodiments of this application, first liquid storage pot is located the top of heat exchanger, the lower extreme of first liquid storage pot is equipped with first liquid outlet, first inlet, the second liquid storage pot is located the below of heat exchanger, the lower extreme of second liquid storage pot is equipped with second liquid outlet, second inlet.
In some embodiments of the present application, the first reservoir and/or the second reservoir is provided with a plurality of sight glasses for observing different liquid levels.
In some embodiments of the present application, a first quick coupling is disposed at an inlet end of the main pipeline, and a second quick coupling is disposed at an outlet end of the main pipeline.
In some embodiments of the present application, the main line is provided with a refrigerant supplement port between the first check valve and the first liquid storage tank.
In some embodiments of the present application, the second branch line is provided with a high-pressure switch located between the compressor and the third solenoid valve.
In some embodiments of the present application, the second branch pipe is provided with a gas-liquid separator between the compressor and the heat exchanger.
In some embodiments of the present application, the first branch line is provided with a dry filter between the third solenoid valve and the fourth solenoid valve.
In some embodiments of this application, the upper end of heat exchanger is equipped with the heat transfer export, one side of heat exchanger is equipped with the fan that provides the forced air cooling usefulness.
The application also provides a refrigerant pump cabinet detection method adopting the refrigerant pump cabinet detection device, which comprises the following steps:
s1: evacuating the refrigerant pump cabinet;
s2: judging whether the amount of the liquid refrigerant in the refrigerant pump cabinet detection device is within a set range;
if yes, go to S3;
if not, filling liquid refrigerant into the refrigerant pump cabinet detection device to a set range;
s3: connecting the refrigerant pump cabinet with the refrigerant pump cabinet detection device to form a loop, and opening the first electromagnetic valve, the second electromagnetic valve, the third electromagnetic valve and the fourth electromagnetic valve;
s4: starting the refrigerant pump, and detecting the refrigerant pump cabinet;
s5: closing the second electromagnetic valve and the fourth electromagnetic valve, and opening the fifth electromagnetic valve;
and S6, starting the compressor and recovering the liquid refrigerant in the refrigerant pump cabinet.
Compared with the prior art, the application has the advantages and beneficial effects that:
the detection device that this application provided is used for the supplementary refrigerant pump cabinet that detects on the one hand, after utilizing the main line to communicate first branch pipeline with the refrigerant pump cabinet, can utilize second liquid storage pot and first liquid storage pot to come to filling liquid state refrigerant in to the refrigerant pump. In the whole process of detecting the refrigerant pump cabinet according to the flow of the commodity inspection, the idle running of the refrigerant pump can be avoided while the electric control is effectively detected. Therefore, after the production of the refrigerant pump cabinet is finished, the detection device can be used for carrying out full detection before delivery, the delivery of the refrigerant pump cabinet with faults can be avoided, and the loss of enterprises and users is prevented.
The detection device that this application provided on the other hand can be after having detected the refrigerant pump cabinet, retrieves the liquid refrigerant that flows into in the refrigerant pump cabinet to reuse the refrigerant, improve the utilization efficiency of refrigerant, reduce and detect the cost. After the detection is finished, the first branch pipeline is disconnected with the refrigerant pump cabinet, the second branch pipeline is communicated with the refrigerant pump cabinet by using the main pipeline, high pressure generated by the compressor can be utilized, liquid refrigerant reserved in the refrigerant pump cabinet is pressed into the first liquid storage tank, and the set first check valve can prevent the liquid refrigerant entering the first liquid storage tank from flowing back.
Other features and advantages of the present application will become more apparent from the detailed description of the embodiments of the present application when taken in conjunction with the accompanying drawings.
Drawings
FIG. 1 is a schematic structural diagram of a refrigerant pump cabinet detection device in an embodiment of the present application;
fig. 2 is a flow chart of a refrigerant pump cabinet detection method in an embodiment of the present application:
description of reference numerals:
a refrigerant pump cabinet 1;
a refrigerant pump cabinet detection device 2;
a main pipeline 21;
a first solenoid valve 211; a first check valve 212; a first reservoir 213; a second solenoid valve 214; a heat exchanger 215; a third solenoid valve 216; a refrigerant replenishment port 217; a fan 218;
a first branch line 22;
a second reservoir 221; a fourth solenoid valve 222; a drying filter 223;
a second branch pipe 23;
a fifth solenoid valve 231; a compressor 232; a high voltage switch 233; a second one-way valve 234; a gas-liquid separator 235.
Detailed Description
The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application, and it is obvious that the described embodiments are only a part of the embodiments of the present application, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present application.
The terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present application, "a plurality" means two or more unless otherwise specified.
In the description of the present application, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present application can be understood in a specific case by those of ordinary skill in the art.
Aiming at the technical problem that when the existing refrigerant pump cabinet 1 is subjected to factory inspection, because the air tightness and the electrical control part in the refrigerant pump cabinet 1 cannot be synchronously detected, the refrigerant pump cabinet 1 is subjected to factory inspection with a fault or with a quality hidden trouble, the embodiment of the application provides a refrigerant pump cabinet detection device 2, wherein the detection device 2 comprises a main pipeline 21, and a first branch pipeline 22 and a second branch pipeline 23 which are arranged in the main pipeline 21 in parallel, and fig. 1 is referred to.
The main pipeline 21 is provided with an inlet end and an outlet end, the inlet end is used for connecting with a liquid outlet of the refrigerant pump cabinet 1, the outlet end is used for connecting with a liquid inlet of the refrigerant pump cabinet 1, a first electromagnetic valve 211, a first one-way valve 212, a first liquid storage tank 213, a second electromagnetic valve 214, a heat exchanger 215 and a third electromagnetic valve 216 which are arranged between the inlet end and the outlet end are arranged on the main pipeline 21, and the first electromagnetic valve 211, the first one-way valve 212, the first liquid storage tank 213, the second electromagnetic valve 214, the heat exchanger 215 and the third electromagnetic valve 216 are sequentially distributed along the flow direction of the refrigerant. The first branch pipeline 22 and the second branch pipeline 23 are specifically connected in parallel between the heat exchanger 215 and the third electromagnetic valve 216, wherein the first branch pipeline 22 is provided with a second liquid storage tank 221 and a fourth electromagnetic valve 222 which are sequentially arranged along the refrigerant flow direction, and the second branch pipeline 23 is provided with a fifth electromagnetic valve 231 and a compressor 232 which are sequentially arranged along the refrigerant flow direction.
The detection device 2 that provides in the embodiment of this application has the effect of supplementary detection and the effect of retrieving the refrigerant, easy operation, the reliability is high, can carry out comprehensive detection to refrigerant pump cabinet 1 under the normal operating condition of refrigerant pump, avoid appearing the phenomenon of refrigerant pump idle running when examining, also prevented to lead to the defective products to flow to the customer because of refrigerant pump cabinet 1 detects incompletely, consequently, detection device 2 can effectively improve the outgoing quality level of refrigerant pump cabinet 1 in the embodiment of this application.
When the refrigerant pump cabinet 1 needs to be fully tested, referring to fig. 2, the testing method may include the following steps:
step S1: the refrigerant pump cabinet 1 is vacuumized.
After the refrigerant pump cabinet 1 is vacuumized, if the refrigerant pump cabinet 1 is connected with the refrigerant pump cabinet detection device 2 to form a loop, the refrigerant in the refrigerant pump cabinet detection device 2 can be pressed into the refrigerant pump cabinet under the action of pressure difference.
Step S2: and judging whether the amount of the liquid refrigerant in the refrigerant pump cabinet detection device 2 is within a set range.
If the amount of the liquid refrigerant is within the set range, step S3 is executed.
If the amount of the liquid refrigerant is smaller than the set range, the liquid refrigerant is filled into the refrigerant pump cabinet detection device 2, so that the amount of the liquid refrigerant is within the set range.
The setting range needs to be determined such that the liquid refrigerant is filled before and after the refrigerant pump in the process of detecting the connection of the refrigerant pump cabinet 1 and the refrigerant pump cabinet detecting device 2.
The sequence of step S1 and step S2 is not limited in this embodiment of the application.
Step S3: the refrigerant pump cabinet 1 and the refrigerant pump cabinet detection device 2 are connected to form a circuit, and the first solenoid valve 211, the second solenoid valve 214, the third solenoid valve 216, and the fourth solenoid valve 222 are opened.
The inlet end of the main pipeline 21 is communicated with the liquid outlet of the refrigerant pump cabinet 1, the outlet end of the main pipeline 21 is communicated with the liquid inlet of the refrigerant pump cabinet 1, and the refrigerant pump cabinet 1 is correspondingly connected with the refrigerant pump cabinet detection device 2.
The first solenoid valve 211, the second solenoid valve 214, and the third solenoid valve 216 are opened so that the main line 21 communicates with the refrigerant line inside the refrigerant pump cabinet 1.
The fourth solenoid valve 222 is opened to allow the first branch line 22 to communicate with the refrigerant line in the refrigerant pump cabinet 1 through the main line 21, and the refrigerant pump cabinet 1 and the refrigerant pump cabinet detection device 2 form a refrigerant circulation circuit for auxiliary detection.
The liquid refrigerant in the refrigerant pump cabinet detection device 2 flows into the refrigerant pump cabinet 1 due to the action of pressure difference, and the front and the back of the refrigerant pump are filled with the liquid refrigerant.
Step S4: the refrigerant pump is started, and the refrigerant pump cabinet 1 is detected.
After the front and the back of the refrigerant pump are filled with liquid refrigerant, the refrigerant pump is started, the refrigerant pump drives the refrigerant to flow between the refrigerant pump cabinet 1 and the refrigerant pump cabinet detection device 2, at the moment, the heat exchanger 215 releases heat and condenses, the heat exchanger 215 plays a role of a condenser, and detection personnel can comprehensively detect the refrigerant pump cabinet 1 according to the existing commodity inspection process, including the detection of the air tightness and the electric appliance control part.
Step S5: the second solenoid valve 214, the fourth solenoid valve 222 are closed, and the fifth solenoid valve 231 is opened.
After the refrigerant pump cabinet 1 is completely detected, in order to reduce waste, the liquid refrigerant flowing into the refrigerant pump cabinet 1 needs to be recovered into the detection device 2.
The second solenoid valve 214 is closed so that the refrigerant in the first receiver tank 213 cannot flow toward the heat exchanger 215.
The fourth solenoid valve 222 is closed so that the refrigerant in the second reservoir tank 221 cannot flow toward the inside of the refrigerant pump cabinet 1.
Opening the fifth solenoid valve 231 to communicate the compressor 232 with the heat exchanger 215 allows the refrigerant in the heat exchanger 215 to flow toward the compressor 232 after absorbing heat and evaporating.
In step S6, the compressor 232 is started to recover the liquid refrigerant in the refrigerant pump cabinet 1.
The high-pressure gaseous refrigerant generated by the compressor 232 can push the liquid refrigerant remaining in the refrigerant pump housing 1 into the first receiver 213, and the first check valve 212 can prevent the liquid refrigerant from flowing back into the refrigerant pump housing 1.
At this time, the heat exchanger 215 absorbs heat and evaporates, and the heat exchanger 215 functions as an evaporator to supply a gaseous refrigerant for compression to the operation of the compressor 232.
When the liquid storage tank in the refrigerant pump cabinet 1 is observed to be empty, the recovery operation is judged to be completed, and at least liquid refrigerant is recovered into the refrigerant pump cabinet detection device 2.
The liquid storage tank in the refrigerant pump cabinet 1 is provided with a liquid viewing mirror, and the amount of refrigerant in the liquid storage tank can be observed through the liquid viewing mirror.
Step S7: the first solenoid valve 211 and the third solenoid valve 216 are closed, and the connection between the refrigerant pump cabinet 1 and the refrigerant pump cabinet detection device 2 is disconnected.
In some embodiments of the present application, the first liquid storage tank 213 is disposed above the heat exchanger 215, a first liquid outlet communicated with the second solenoid valve 214 and a first liquid inlet communicated with the first check valve 212 are disposed at a lower end of the first liquid storage tank 213, the second liquid storage tank 221 is disposed below the heat exchanger 215, and a second liquid outlet communicated with the fourth solenoid valve 222 and a second liquid inlet communicated with the heat exchanger 215 are disposed at a lower end of the second liquid storage tank 221.
The second liquid storage tank 221 is located below the heat exchanger 215 and the first liquid storage tank 213, and in the detection process, the second liquid storage tank 221 is always in a full liquid state, so that all the refrigerant flowing to the refrigerant pump cabinet 1 can be ensured to be liquid refrigerant, and the operation of the refrigerant pump can be better ensured.
The first receiver 213 is located above the heat exchanger 215 and the second receiver 221, and during the detection process, the first receiver 213 is only used as a pipeline, and when the liquid refrigerant is recovered, the first receiver 213 is used to store the liquid refrigerant flowing out from the refrigerant pump cabinet 1.
In some embodiments of the present application, a plurality of sight glasses for observing different liquid levels are disposed on the second liquid storage tank 221, so that whether the second liquid storage tank 221 is full of liquid can be observed.
Since a certain amount of refrigerant remains in the refrigerant pump cabinet 1 after the liquid refrigerant is recovered, the refrigerant pump cabinet detection device 2 loses the certain amount of refrigerant. After multiple detections, the refrigerant in the refrigerant pump cabinet detection device 2 will continuously run off, and therefore, before the refrigerant pump cabinet 1 is connected to the refrigerant pump cabinet detection device 2, it is necessary to determine whether the amount of the liquid refrigerant in the refrigerant pump cabinet detection device 2 is within a set range, and when the amount of the liquid refrigerant in the refrigerant pump cabinet detection device 2 is within the set range, the second liquid storage tank 221 is in a full liquid state.
In some embodiments of the present application, first reservoir 213 is provided with a plurality of sight glasses for observing different levels. Before the refrigerant pump cabinet 1 is connected to the refrigerant pump cabinet detection device 2, the amount of the refrigerant in the first reservoir tank 213 can be observed by a liquid sight glass, so as to determine whether the amount of the liquid refrigerant in the refrigerant pump cabinet detection device 2 is within a set range.
Before the refrigerant pump cabinet 1 is connected to the refrigerant pump cabinet detection device 2, if the first liquid storage tank 213 is empty, it is determined that the amount of refrigerant in the refrigerant pump cabinet detection device 2 is smaller than the set range, and at this time, the refrigerant needs to be replenished.
When the refrigerant in the first receiver 213 reaches a certain height, the refrigerant is replenished to a set range, and a subsequent detection can be performed.
In order to facilitate filling of the refrigerant, in some embodiments of the present disclosure, a refrigerant supplement port 217 is disposed on the main pipe 21 between the first check valve 212 and the first liquid storage tank 213, and specifically, the refrigerant supplement port 217 is formed with a threaded structure, so that when the fluorine filling pipe is screwed to the refrigerant supplement port, the refrigerant such as freon and ammonia can be filled, and after the filling is completed, the fluorine filling pipe is unscrewed.
In some embodiments of the present application, in order to facilitate the fast docking between the refrigerant pump cabinet 1 and the refrigerant pump cabinet detection device 2, a first quick coupling is provided at the inlet end of the main pipeline 21, a second quick coupling is provided at the outlet end of the main pipeline 21, the first quick coupling can be used to realize the fast docking with the liquid outlet of the refrigerant pump cabinet 1, and the second quick coupling can be used to realize the fast docking with the liquid inlet of the refrigerant pump cabinet 1.
In some embodiments of the present application, a fan 218 is disposed on one side of the heat exchanger 215, and the fan 218 is used for cooling the heat exchanger 215, so as to accelerate heat exchange and improve detection and recovery efficiency.
In some embodiments of the present application, a heat exchange outlet is disposed at the upper end of the heat exchanger 215, the heat exchange outlet is communicated with the second branch pipe 23, when the liquid refrigerant is recovered, the heat exchanger 215 functions as an evaporator, and the heat exchange outlet is located at the upper end of the heat exchanger 215, so as to ensure that all of the refrigerant sucked into the compressor 232 is gaseous refrigerant.
In some embodiments of the present application, a three-way joint may be used to connect the heat exchange outlet of the heat exchanger 215 to the first branch pipe 22 for the sake of simplicity.
In some embodiments of the present application, a gas-liquid separator 235 is disposed on the second branch pipe 23 and between the compressor 232 and the heat exchanger 215, and the gas-liquid separator 235 is used to separate gas from liquid in the heat exchanger 215, thereby avoiding liquid slugging of the compressor 232.
The gas-liquid separator 235 may be located between the compressor 232 and the fifth solenoid valve 231 so as to be as close to the compressor 232 as possible.
In some embodiments of the present application, a second check valve 234 is disposed on the second branch pipe 23 between the compressor 232 and the third solenoid valve 216, and the compressed gaseous refrigerant is prevented from flowing back into the compressor 232 by the second check valve 234.
In some embodiments of the present application, a high pressure switch 233 is provided on the second branch line 23 between the compressor 232 and the third solenoid valve 216. When the discharge pressure of the compressor 232 is higher than the set pressure, the high-voltage switch 233 is turned off, and the shutdown protection of the compressor 232 can be realized. The high pressure switch 233 may be specifically located between the second check valve 234 and the third solenoid valve 216.
In some embodiments of the present application, a low pressure switch is disposed on the second branch pipe 23 between the compressor 232 and the gas-liquid separator 235, and when the suction pressure of the compressor 232 is lower than a set pressure, the low pressure switch is turned off, so that shutdown protection of the compressor 232 can be achieved.
In some embodiments of the present application, a dry filter 223 is disposed between the third solenoid valve 216 and the fourth solenoid valve 222 on the first branch line 22. In the detection process, impurities in the whole loop are filtered by using the drying filter 223, so that the cleanliness of the whole loop can be effectively improved.
In the description of the present application, reference to the description of the terms "one embodiment," "some embodiments," "an illustrative embodiment," "an example," "a specific example," or "some examples" or the like means that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the present application. In the description of the present application, the schematic representations of the terms used above do not necessarily refer to the same embodiment or example.
While embodiments of the present application have been shown and described, it will be understood by those of ordinary skill in the art that: various changes, modifications, substitutions and alterations can be made to the embodiments without departing from the principles and spirit of the application, the scope of which is defined by the claims and their equivalents.
Claims (10)
1. A refrigerant pump cabinet detection device, comprising:
the main pipeline is provided with an inlet end, an outlet end, a first electromagnetic valve, a first one-way valve, a first liquid storage tank, a second electromagnetic valve, a heat exchanger and a third electromagnetic valve which are sequentially arranged along the flow direction of the refrigerant;
the first branch pipeline is provided with a second liquid storage tank and a fourth electromagnetic valve which are sequentially arranged along the flow direction of the refrigerant;
the second branch pipeline is provided with a fifth electromagnetic valve, a compressor and a second one-way valve which are sequentially arranged along the flow direction of the refrigerant;
the first branch pipeline and the second branch pipeline are connected between the heat exchanger and the third electromagnetic valve in parallel.
2. The refrigerant pump cabinet detection device as claimed in claim 1, wherein the first liquid storage tank is located above the heat exchanger, a first liquid outlet and a first liquid inlet are provided at a lower end of the first liquid storage tank, the second liquid storage tank is located below the heat exchanger, and a second liquid outlet and a second liquid inlet are provided at a lower end of the second liquid storage tank.
3. The refrigerant pump cabinet detection device of claim 1, wherein the first reservoir and/or the second reservoir is provided with a plurality of sight glasses for observing different liquid levels.
4. The refrigerant pump cabinet detection device of claim 1, wherein the inlet end of the main pipeline is provided with a first quick connector, and the outlet end of the main pipeline is provided with a second quick connector.
5. The refrigerant pump cabinet detection device of claim 1, wherein the main line is provided with a refrigerant replenishment port located between the first one-way valve and the first liquid storage tank.
6. The refrigerant pump cabinet detection device of claim 1, wherein the second branch line is provided with a high pressure switch between the compressor and the third solenoid valve.
7. The refrigerant pump cabinet detection device of claim 1, wherein the second branch line is provided with a gas-liquid separator between the compressor and the heat exchanger.
8. The refrigerant pump cabinet detection device of claim 1, wherein the first branch line is provided with a dry filter between the third solenoid valve and the fourth solenoid valve.
9. The refrigerant pump cabinet detection device of claim 1, wherein the upper end of the heat exchanger is provided with a heat exchange outlet, and one side of the heat exchanger is provided with a fan for providing air cooling.
10. A refrigerant pump cabinet detection method using the refrigerant pump cabinet detection apparatus according to any one of claims 1 to 9, comprising:
s1: evacuating the refrigerant pump cabinet;
s2: judging whether the amount of the liquid refrigerant in the refrigerant pump cabinet detection device is within a set range;
if yes, go to S3;
if not, filling liquid refrigerant into the refrigerant pump cabinet detection device to a set range;
s3: connecting the refrigerant pump cabinet with the refrigerant pump cabinet detection device to form a loop, and opening the first electromagnetic valve, the second electromagnetic valve, the third electromagnetic valve and the fourth electromagnetic valve;
s4: starting the refrigerant pump, and detecting the refrigerant pump cabinet;
s5: closing the second electromagnetic valve and the fourth electromagnetic valve, and opening the fifth electromagnetic valve;
and S6, starting the compressor and recovering the liquid refrigerant in the refrigerant pump cabinet.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010761420.7A CN111946607B (en) | 2020-07-31 | 2020-07-31 | Refrigerant pump cabinet detection device and refrigerant pump cabinet detection method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010761420.7A CN111946607B (en) | 2020-07-31 | 2020-07-31 | Refrigerant pump cabinet detection device and refrigerant pump cabinet detection method |
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| CN111946607A CN111946607A (en) | 2020-11-17 |
| CN111946607B true CN111946607B (en) | 2022-08-02 |
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| CN201527351U (en) * | 2009-11-24 | 2010-07-14 | 珠海格力电器股份有限公司 | Recoverable refrigerant air-conditioning external machine detecting system |
| CN111271888A (en) * | 2020-03-27 | 2020-06-12 | 合肥天鹅制冷科技有限公司 | Refrigeration equipment capable of automatically balancing refrigerant charging amount |
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