CN216847984U - Test system - Google Patents
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- CN216847984U CN216847984U CN202220307077.3U CN202220307077U CN216847984U CN 216847984 U CN216847984 U CN 216847984U CN 202220307077 U CN202220307077 U CN 202220307077U CN 216847984 U CN216847984 U CN 216847984U
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Abstract
The application relates to a test system for testing the performance of a heat exchanger, which comprises a first branch, a second branch, a third branch and a control valve group, wherein a pipeline of the second branch is communicated with a pipeline of the first branch, a pipeline at one end of the third branch is communicated with a pipeline of the first branch, and a pipeline at the other end of the third branch is communicated with a pipeline of the second branch; the control valve group is used for controlling the on-off between the first branch and the second branch, the on-off between the first branch and the third branch and the on-off between the second branch and the third branch; the part to be tested is installed in the second branch, the third branch is provided with the first driving piece, the first driving piece can drive the refrigerant in the second branch to enter the first branch, the waste of the refrigerant in the pipeline of the second branch when the part to be tested is replaced is avoided, and therefore the cost of the test system for testing the performance of the part to be tested is reduced.
Description
Technical Field
The application relates to the technical field of heat exchanger testing, in particular to a testing system.
Background
The heat exchanger test system is used for testing the performance of the heat exchanger, and can simulate the working environment of one or more heat exchangers to be tested by means of the air volume measuring device and the environment control device so as to test the performance of the heat exchanger during working and develop new products. Under the normal condition, the test system needs to discharge the refrigerant in the pipeline when replacing the heat exchanger to be tested, and the refrigerant is refilled after the new heat exchanger to be tested is installed, so that the refrigerant waste is caused, and the test cost is increased.
SUMMERY OF THE UTILITY MODEL
The present application provides a test system that can avoid the waste of refrigerant.
The application provides a test system for testing the performance of a heat exchanger, which comprises a first branch, a second branch, a third branch and a control valve group, wherein a pipeline of the second branch is communicated with a pipeline of the first branch, a pipeline at one end of the third branch is communicated with a pipeline of the first branch, and a pipeline at the other end of the third branch is communicated with a pipeline of the second branch;
the control valve group is used for controlling the on-off between the first branch and the second branch, the on-off between the first branch and the third branch and the on-off between the second branch and the third branch;
the part to be tested is arranged on the second branch, the third branch is provided with a first driving piece, and the first driving piece can drive the refrigerant in the second branch to enter the first branch.
In this application, the refrigerant in the pipeline of second branch road can get into the pipeline of first branch road through the pipeline of third branch road under the drive of first driving piece in, the waste of the refrigerant in the pipeline of second branch road when having avoided the piece that awaits measuring to change to the cost of test system to the piece that awaits measuring performance test has been reduced.
In one possible design, the third branch is further provided with a first detection piece, and the first detection piece is used for detecting the pressure in the pipeline of the second branch;
the first detection part is electrically connected or in signal connection with the first driving part so as to control the first driving part to stop working.
In one possible design, the test system further includes a first switch and a second switch, one end of the first switch is connected to the first end of the first branch, the other end of the first switch is connected to the first end of the second branch, one end of the second switch is connected to the second end of the first branch, and the other end of the second switch is connected to the second end of the second branch;
the third branch circuit further comprises a third switch and a fourth switch, one end of the third switch is connected with the first branch circuit through a pipeline, the other end of the third switch is connected with the first end of the first driving piece through a pipeline, one end of the fourth switch is connected with the second branch circuit through a pipeline, and the other end of the fourth switch is connected with the second end of the first driving piece through a pipeline.
In a possible design, the test system further comprises a fourth branch, and the pipeline of the fourth branch can be communicated with the pipeline of the second branch;
the fourth branch is provided with a second driving piece, and the second driving piece is used for extracting gas in the second branch so as to enable the interior of the second branch pipeline to be in a vacuum state.
In one possible embodiment, the fourth branch is further provided with a second detection element for detecting a vacuum value of the line of the second branch.
In a possible design, the control valve group further comprises a fifth switch, one end of the fifth switch is connected with the second driving member through a pipeline, and the other end of the fifth switch is connected with the pipeline of the second branch through a pipeline.
In one possible design, the first branch and the second branch are connected to form a test loop, and the test system comprises one or more test loops, and a plurality of test loops are arranged in parallel.
In one possible design, when the number of the test circuits is multiple, the first end of the first driving member is connected with the multiple third switches arranged in parallel through a pipeline, and the second end of the first driving member is connected with the multiple fourth switches arranged in parallel through a pipeline;
at least one third switch is connected with at least one first branch through a pipeline, and at least one fourth switch is connected with at least one second branch through a pipeline.
In one possible design, when the number of the test circuits is multiple, the second driving part is connected with a plurality of fifth switches arranged in parallel through pipelines;
the at least one fifth switch is connected with the at least one second branch circuit through a pipeline.
In one possible design, the first branch is also provided with a storage device.
It is to be understood that both the foregoing general description and the following detailed description are exemplary and explanatory only and are not restrictive of the application.
Drawings
FIG. 1 is a schematic block diagram of a test system provided in the present application in one embodiment;
FIG. 2 is a schematic structural diagram of the first branch circuit in FIG. 1;
FIG. 3 is a schematic structural diagram of the second branch circuit in FIG. 1;
FIG. 4 is a schematic structural diagram of a third branch circuit in FIG. 1;
FIG. 5 is a schematic structural diagram of a fourth branch circuit in FIG. 1;
FIG. 6 is a schematic block diagram of another embodiment of a test system provided in the present application;
FIG. 7 is a schematic structural diagram of the third branch circuit in FIG. 6;
fig. 8 is a schematic structural diagram of the fourth branch circuit in fig. 6.
Reference numerals are as follows:
1-a first branch;
11-a storage device;
12-a third drive member;
13-a heat exchanger;
2-a second branch;
21-a piece to be detected;
22-a filter;
3-a third branch;
31-a first drive member;
32-a first detection member;
33-a third switch;
34-a fourth switch;
4-a first switch;
5-a second switch;
6-a fourth branch;
61-a second drive member;
62-a second detection member;
63-fifth switch.
The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments consistent with the present application and together with the description, serve to explain the principles of the application.
Detailed Description
For better understanding of the technical solutions of the present application, the following detailed descriptions of the embodiments of the present application are provided with reference to the accompanying drawings.
It should be understood that the embodiments described are only a few embodiments of the present application, and not all 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 terminology used in the embodiments of the present application is for the purpose of describing particular embodiments only and is not intended to be limiting of the application. As used in the examples of this application and the appended claims, the singular forms "a", "an", and "the" are intended to include the plural forms as well, unless the context clearly indicates otherwise.
It should be understood that the term "and/or" as used herein is merely one type of association that describes an associated object, meaning that three relationships may exist, e.g., a and/or B may mean: a exists alone, A and B exist simultaneously, and B exists alone. In addition, the character "/" herein generally indicates that the former and latter associated objects are in an "or" relationship.
It should be noted that the terms "upper", "lower", "left", "right", and the like used in the embodiments of the present application are described in terms of the angles shown in the drawings, and should not be construed as limiting the embodiments of the present application. In addition, in this context, it will also be understood that when an element is referred to as being "on" or "under" another element, it can be directly on "or" under "the other element or be indirectly on" or "under" the other element through intervening elements.
The application provides a test system for testing the performance of a heat exchanger 13, as shown in fig. 1-4, the test system comprises a first branch 1, a second branch 2, a third branch 3 and a control valve group (not marked in the figures), wherein a pipeline of the second branch 2 can be communicated with a pipeline of the first branch 1, a pipeline at one end of the third branch 3 can be communicated with a pipeline of the first branch 1, a pipeline at the other end of the third branch 3 can be communicated with a pipeline of the second branch 2, and the control valve group controls the on-off of the first branch 1 and the second branch 2, the on-off of the first branch 1 and the third branch 3 and the on-off of the second branch 2 and the third branch 3; the part to be tested 21 is arranged on the second branch 2, the third branch 3 is provided with a first driving part 31, and the first driving part 31 can drive the refrigerant in the second branch 2 to enter the first branch 1. Wherein, the valve unit includes first switch 4, second switch 5, third switch 33 and fourth switch 34, the one end of first switch 4 is connected with the first end of first branch road 1, the other end of first switch 4 is connected with the first end of second branch road 2, the one end of second switch 5 is connected with the second end of first branch road 1, the other end of second switch 5 is connected with the second end of second branch road 2, the one end of third switch 33 is connected with first branch road 1 through the pipeline, the other end of third switch 33 is connected with the first end of first driving piece 31 through the pipeline, the one end of fourth switch 34 is connected with second branch road 2 through the pipeline, the other end of fourth switch 34 is connected with the second end of first driving piece 31 through the pipeline.
In the present embodiment, the first switch 4 and the second switch 5 are used for connecting or blocking the connection of the first branch 1 and the second branch 2, the third switch 33 is used for connecting or blocking the connection of the third branch 3 and the first branch 1, and the fourth switch 34 is used for connecting or blocking the connection of the third branch 3 and the second branch 2. When the test system performs a performance test on the to-be-tested part 21, the first switch 4 and the second switch 5 are in an open state, the third switch 33 and the fourth switch 34 are in a closed state, at this time, the pipeline of the first branch 1 is communicated with the pipeline of the second branch 2, the refrigerant circulates in the first branch 1 and the second branch 2, when replacing the object 21, the user switches the first switch 4 and the second switch 5 to the off state, meanwhile, the third switch 33 and the fourth switch 34 are switched to the on state, so that the pipeline of the first branch 1 is communicated with the pipeline of the second branch 2 through the pipeline of the third branch 3, at the moment, the refrigerant in the pipeline of the second branch 2 enters the pipeline of the first branch 1 through the pipeline of the third branch 3 under the driving of the first driving member 31, the waste of the refrigerant in the pipeline of the second branch 2 when the to-be-tested member 21 is replaced is avoided, and the cost of the testing system for testing the performance of the to-be-tested member 21 is reduced. The first switch 4, the second switch 5, the third switch 33 and the fourth switch 34 are used for controlling the connection mode among the first branch 1, the second branch 2 and the third branch 3, the structure of the test system can be simplified, the situation that the test system cannot normally work due to disorder of connection among the first branch 1, the second branch 2 and the third branch 3 is avoided, and therefore the working stability of the test system is improved.
Specifically, as shown in fig. 4, the third branch 3 is further provided with a first detecting member 32, and the first detecting member 32 is used for detecting the pressure in the pipeline of the second branch 2; the control valve set comprises a controller (not shown), the controller is electrically connected or in signal connection with the first driving member 31, and the controller can control the first driving member 31 to stop working according to the detection result of the first detecting member 32.
In this embodiment, when the first driving element 31 is turned on and drives the refrigerant in the pipeline of the second branch 2 to enter the first branch 1 through the third branch 3, the pressure in the pipeline of the second branch 2 may be reduced, and when the pressure in the second branch 2 is reduced to the preset value of the first detecting element 32, the first detecting element 32 controls the first driving element 31 to stop working through the controller, thereby preventing the parts and pipelines installed in the second branch 2 from being damaged due to the over-low pressure in the pipeline of the second branch 2, and prolonging the service life of each part and pipeline on the second branch 2, and meanwhile, the first driving element 31 is controlled to stop working through the first detecting element 32, thereby simplifying the operation of the user.
Furthermore, as shown in fig. 1 and 5, the testing system further comprises a fourth branch 6, the pipeline of the fourth branch 6 being capable of communicating with the pipeline of the second branch 2; the fourth branch 6 is provided with a second driving member 61, and the second driving member 61 is used for pumping the gas in the second branch 2, so that the interior of the pipeline of the second branch 2 is in a vacuum state. The control valve group further comprises a fifth switch 63, one end of the fifth switch 63 is connected with the second driving member 61 through a pipeline, and the other end of the fifth switch 63 is connected with the pipeline of the second branch 2 through a pipeline.
In this embodiment, after the new to-be-tested member 21 is replaced, the fifth switch 63 is switched to the on state, so that the pipeline of the second branch 2 is communicated with the pipeline of the fourth branch 6, the second driving member 61 is switched to the operating state after receiving the vacuum pumping instruction, air in the pipeline of the second branch 2 is pumped out, and the pipeline of the second branch 2 is in the vacuum state, so that the refrigerant can smoothly enter the pipeline of the second branch 2. The fourth branch 6 is arranged, so that the risk of prolonging the test period caused by independently externally connecting a vacuumizing device is avoided, the test period of the test system is shortened, and the installation and test efficiency of the test system is improved; meanwhile, the increase of the installation space of the test system caused by the independent external vacuum-pumping device is avoided, so that the installation space of the test system is reduced.
In particular, as shown in fig. 5, the fourth branch 6 is also provided with a second detection member 62, the second detection member 62 being used for detecting the vacuum value of the pipe of the second branch 2.
In this embodiment, when the second driving element 61 is turned on and the air in the pipeline of the second branch 2 is pumped out, the vacuum value in the pipeline of the second branch 2 changes, and when the vacuum value in the second branch 2 reaches the preset value of the second detecting element 62, the fifth switch 63 is switched to the off state, so as to avoid the parts and the pipeline installed in the second branch 2 from being damaged, further prolong the service life of each part and the pipeline on the second branch 2, and simultaneously, the user controls the second driving element 61 and the second detecting element 62 to stop working, thereby avoiding energy waste.
In addition, as shown in fig. 1 and 6, the first branch 1 and the second branch 2 are connected to form a test loop, and the test system includes one or more test loops, and a plurality of test loops are arranged in parallel.
In the embodiment of the application, the test system comprises one or more test loops, and when the test system comprises a plurality of test loops, the test system can simultaneously perform performance test on a plurality of pieces to be tested 21, so that the problem that the test cycle is prolonged due to independent test is avoided, and the service performance and the test efficiency of the test system are improved.
Specifically, as shown in fig. 7, when the number of the test circuits is plural, the first end of the first driving member 31 is connected to the plural third switches 33 arranged in parallel through a pipeline, and the second end of the first driving member 31 is connected to the plural fourth switches 34 arranged in parallel through a pipeline; at least one third switch 33 is connected to the at least one first branch 1 via a line, and at least one fourth switch 34 is connected to the at least one second branch 2 via a line.
In this embodiment, the third branch 3 is provided with a plurality of third switches 33 connected in parallel and a plurality of fourth switches 34 connected in parallel, so that one third branch 3 is connected with a plurality of test circuits at the same time, and the third branch 3 can respectively control the refrigerant of a plurality of second branches 2 to be recovered to the first branch 1, thereby increasing the working efficiency and the utilization rate of the third branch 3, and simultaneously reducing the required number of the third branch 3, thereby simplifying the structure of the test system.
Specifically, as shown in fig. 8, when the number of the test circuits is plural, the second driver 61 is connected to a plurality of fifth switches 63 arranged in parallel through a pipeline; the at least one fifth switch 63 is connected to the at least one second branch 2 via a line.
In this embodiment, the fourth branch 6 is provided with a plurality of fifth switches 63 connected in parallel, so that one fourth branch 6 is connected with a plurality of test loops at the same time, and the fourth branch 6 can respectively perform vacuum pumping operation on a plurality of second branches 2, thereby increasing the working efficiency and the utilization rate of the fourth branch 6, and simultaneously reducing the required number of the fourth branch 6, and further simplifying the structure of the test system.
In any of the above embodiments, as shown in fig. 2, the first branch 1 is further provided with a storage device 11, and the storage device 11 is used for storing the refrigerant.
In the present embodiment, when the test piece 21 is replaced, the first driving member 31 can drive the refrigerant in the second branch 2 to enter the storage device 11 through the pipeline of the third branch 3 and the pipeline of the first branch 1; after the new device to be tested 21 is installed, the refrigerant in the storage device 11 is replenished into the pipeline of the second branch 2, so that the test system can work normally. Meanwhile, when the refrigerant in the pipeline of the test system is reduced due to consumption (the consumption can be volatilization of the refrigerant, waste of the refrigerant when the to-be-tested piece 21 is replaced, and the like), the storage device 11 can supplement the refrigerant into the pipeline of the test system to ensure sufficiency of the refrigerant, so that the working stability of the test system is improved.
As shown in fig. 2, the first branch circuit 1 is further provided with a third driving element 12, and when the to-be-tested piece 21 is tested, the third driving element 12 can drive the refrigerant to move in the pipeline of the first branch circuit 1 and the pipeline of the second branch circuit 2, so that the refrigerant is prevented from moving unsmoothly, and the flowing stability of the refrigerant is improved. The first branch circuit 1 is further provided with a heat exchanger 13, and the heat exchanger 13 can adjust the temperature of the refrigerant in the test system, so that the refrigerant meets the requirements of different test temperatures, and the test performance and the application range of the test system are improved.
As shown in fig. 3, the second branch 2 is further provided with a filter 22 to prevent the to-be-tested piece 21 from being damaged due to impurities in the refrigerant, so that the service life of the to-be-tested piece 21 is prolonged, and the working stability of the test system is improved.
To sum up, as shown in fig. 1, when the test system completes a test and needs to replace a to-be-tested component 21, a user controls the first switch 4 and the second switch 5 to be turned off, the test system receives a refrigerant recovery instruction, so that the third switch 33 and the fourth switch 34 are turned on, at this time, other switches of the test system are both in an off state, the first driving component 31 is turned on, so that refrigerant in the pipeline of the second branch 2 enters the storage device 11 through the pipeline of the third branch 3 and the pipeline of the first branch 1, when a pressure value in the pipeline of the second branch 2 reaches a preset value of the first detecting component 32, the first detecting component 32 controls the first driving component 31 to stop working, and the third switch 33 and the fourth switch 34 are switched to the off state; after the new to-be-tested member 21 is replaced, before the testing system starts testing, the testing system receives a vacuumizing instruction, the fifth switch 63 is turned on, the second driving member 61 is turned on and vacuumizes the second branch 2, when the vacuum value in the pipeline of the second branch 2 reaches the preset value of the second detection member 62, the fifth switch 63 is switched to the off state, the user turns off the second driving member 61 and the second detection member 62, and turns on the first switch 4 and the second switch 5, so that the refrigerant in the storage device 11 enters the pipeline of the second branch 2 through the pipeline of the first branch 1.
The above description is only a preferred embodiment of the present application and is not intended to limit the present application, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present application shall be included in the protection scope of the present application.
Claims (10)
1. A test system for testing the performance of a heat exchanger, the test system comprising:
a first branch (1);
the second branch (2) is provided with a to-be-detected part (21), and a pipeline of the second branch (2) is communicated with a pipeline of the first branch (1);
a pipeline at one end of the third branch (3) is communicated with a pipeline of the first branch (1), and a pipeline at the other end of the third branch (3) is communicated with a pipeline of the second branch (2);
the control valve group is used for controlling the on-off between the first branch (1) and the second branch (2), the on-off between the first branch (1) and the third branch (3) and the on-off between the second branch (2) and the third branch (3);
the third branch (3) is provided with a first driving member (31), and the first driving member (31) is used for driving the refrigerant in the second branch (2) to enter the first branch (1) through the third branch (3).
2. Test system according to claim 1, characterized in that the control valve group comprises a controller, the third branch (3) is further provided with a first detection member (32), the first detection member (32) is used for detecting the line pressure of the second branch (2);
the controller is electrically connected or in signal connection with the first driving piece (31), and the controller is used for controlling the first driving piece (31) to stop working according to the detection result of the first detection piece (32).
3. The test system according to claim 1, characterized in that the set of control valves comprises a first switch (4) and a second switch (5), one end of the first switch (4) being connected to a first end of the first branch (1), the other end of the first switch (4) being connected to a first end of the second branch (2), one end of the second switch (5) being connected to a second end of the first branch (1), the other end of the second switch (5) being connected to a second end of the second branch (2);
the control valve group further comprises a third switch (33) and a fourth switch (34), one end of the third switch (33) is connected with the first branch (1) through a pipeline, the other end of the third switch (33) is connected with the first end of the first driving piece (31) through a pipeline, one end of the fourth switch (34) is connected with the second branch (2) through a pipeline, and the other end of the fourth switch (34) is connected with the second end of the first driving piece (31) through a pipeline.
4. A test system according to claim 3, further comprising a fourth branch (6), the conduit of the fourth branch (6) being in communication with the conduit of the second branch (2);
the fourth branch (6) is provided with a second driving piece (61), and the second driving piece (61) is used for extracting gas in the second branch (2) so that the interior of the pipeline of the second branch (2) is in a vacuum state.
5. Test system according to claim 4, characterized in that said fourth branch (6) is further provided with a second detection member (62), said second detection member (62) being intended to detect the vacuum value of the circuit of said second branch (2).
6. Test system according to claim 4, characterized in that the set of control valves further comprises a fifth switch (63), one end of the fifth switch (63) being connected to the second drive (61) by means of a pipeline, the other end of the fifth switch (63) being connected to the pipeline of the second branch (2) by means of a pipeline.
7. The test system according to claim 6, wherein the first branch (1) and the second branch (2) are connected to form a test loop, the test system comprising one or more of the test loops, a plurality of the test loops being arranged in parallel.
8. The test system according to claim 7, wherein when the number of the test circuits is plural, the first end of the first driving member (31) is connected to a plurality of the third switches (33) arranged in parallel through a pipeline, and the second end of the first driving member (31) is connected to a plurality of the fourth switches (34) arranged in parallel through a pipeline;
at least one third switch (33) is connected to at least one first branch (1) via a line, and at least one fourth switch (34) is connected to at least one second branch (2) via a line.
9. The test system according to claim 7, wherein when the number of the test circuits is plural, the second driving member (61) is connected to a plurality of the fifth switches (63) arranged in parallel through a pipeline;
at least one fifth switch (63) is connected with at least one second branch (2) through a pipeline.
10. Testing system according to any of claims 1-9, characterized in that the first branch (1) is further provided with a storage device (11).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220307077.3U CN216847984U (en) | 2022-02-15 | 2022-02-15 | Test system |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220307077.3U CN216847984U (en) | 2022-02-15 | 2022-02-15 | Test system |
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| CN216847984U true CN216847984U (en) | 2022-06-28 |
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| CN202220307077.3U Active CN216847984U (en) | 2022-02-15 | 2022-02-15 | Test system |
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