Cooling tower radiator sealing test device and test method

Abstract

The invention relates to the technical field of locomotives, in particular to a cooling tower radiator sealing test device and test method. The cooling tower radiator sealing test device comprises a main air inlet pipe, a branch air inlet pipe and a plugging plate. A ground air source air inlet is formed in one end of the main air inlet pipe and used for being connected with a ground air source. One end of the branch air inlet pipe is communicated with the main air inlet pipe, and a test device air outlet is formed in the other end of the branch air inlet pipe and used for being connected with a cooling liquid inlet hose; the plugging plate is used for being connected with a cooling liquid outlet hose so as to plug the cooling liquid outlet hose. According to the sealing test device for the cooling tower radiator disclosed by the invention, the sealing performance of the cooling tower radiator can be detected when a composite cooling tower is not loaded, and the operation efficiency and the operation quality are improved.

Description

Technical Field

[0001] The present disclosure relates to the technical field of locomotives, and in particular to a cooling tower radiator sealing test device and a test method. Background Art

[0002] The composite cooling tower on the locomotive is mainly responsible for cooling the heat generated during the operation of the main converter cabinet and the main transformer. During the maintenance of the existing locomotive composite cooling tower, the composite cooling tower is usually tested for sealing together with the whole vehicle after being installed on the vehicle to detect the sealing of the cooling tower radiator and connecting pipes.

[0003] However, this method has the problems of great operational difficulty and high maintenance cost. Once the sealing is unqualified and the coolant leaks, the coolant in the main converter cabinet must be completely discharged and all connecting pipes to the main converter cabinet must be removed before repair, which affects the locomotive maintenance production progress. The coolant lost and leaked during the disassembly process must be refilled, and the labor costs for rework also increase the locomotive maintenance cost. Summary of the invention

[0004] The present invention provides a cooling tower radiator sealing test device and a cooling tower radiator sealing test method, which can perform sealing test on the cooling tower radiator when the composite cooling tower is not installed on a vehicle, thereby improving operation efficiency and operation quality.

[0005] According to one aspect of the present disclosure, a cooling tower radiator sealing test device is provided. The cooling tower radiator has a coolant inlet hose and a coolant outlet hose. The coolant inlet hose is used to be connected to the cooling circuit of the locomotive main converter cabinet so that the coolant in the cooling circuit of the main converter cabinet flows into the cooling tower radiator; the coolant outlet hose is used to be connected to the cooling circuit of the locomotive main converter cabinet so that the coolant cooled by the cooling tower radiator flows back into the cooling circuit of the main converter cabinet;

[0006] Cooling tower radiator seal test device includes:

[0007] A main air inlet duct, one end of which is provided with a ground air source inlet for connecting to a ground air source;

[0008] A branch air inlet pipe, one end of which is connected to the main air inlet pipe, and the other end of which is provided with an air outlet of a test device, and the air outlet of the test device is used to be connected to a coolant inlet hose;

[0009] The blocking plate is used to be connected to the coolant outlet hose to block the coolant outlet hose.

[0010] In an exemplary embodiment of the present disclosure, a breakaway plug is provided on the main air inlet pipe for opening or closing the air path between the ground air source and the branch air inlet pipe.

[0011] In an exemplary embodiment of the present disclosure, a cooling tower radiator has at least two non-connected heat dissipation circuits, each of which is connected to the cooling circuit of the locomotive main converter cabinet through a set of coolant inlet hoses and coolant outlet hoses; a cooling tower radiator sealing test device includes at least two branch air inlet pipes for connecting to the coolant inlet hoses in a one-to-one correspondence; a cooling tower radiator sealing test device includes at least two sealing plates for connecting to the coolant outlet hoses in a one-to-one correspondence.

[0012] In an exemplary embodiment of the present disclosure, the branch air inlet duct and the main air inlet duct are connected to the same position of the main air inlet duct.

[0013] In an exemplary embodiment of the present disclosure, the branch air inlet pipe is connected to the main air inlet pipe via a first quick-release connector, and the first quick-release connector has at least three quick-release interfaces.

[0014] In an exemplary embodiment of the present disclosure, a pressure indicator is provided on any branch air inlet pipe.

[0015] In an exemplary embodiment of the present disclosure, the air outlet of the test device has a connecting flange, the connecting flange is welded to the branch air inlet pipe, and the connecting flange is used to be connected to the coolant inlet hose.

[0016] In an exemplary embodiment of the present disclosure, the main air inlet duct and the branch air inlet duct comprise hard pipes made of stainless steel, the pipe section of the main air inlet duct provided with a ground wind source air inlet and the pipe section of the branch air inlet duct provided with a test device air outlet are parallel and non-collinear, and the ground wind source air inlet and the test device air outlet are in opposite directions.

[0017] According to another aspect of the present disclosure, a cooling tower radiator sealing test method is provided, which is used to perform a sealing test on a cooling tower radiator according to any one of the cooling tower radiator sealing test devices described above, and the cooling tower radiator sealing test method comprises:

[0018] Connect the cooling tower radiator sealing test device, and connect the main air inlet pipe to the branch air inlet pipe;

[0019] Connect the main air inlet pipe to the ground air source, connect the air outlet of the test device to the coolant inlet hose, and connect the blocking plate to the coolant outlet hose;

[0020] Turn on the ground air source to charge the cooling tower radiator;

[0021] Determine the tightness of the cooling tower radiator.

[0022] In an exemplary embodiment of the present disclosure, a breakaway plug is provided on the main air inlet pipe, and a pressure indicator is provided on any branch air inlet pipe. The sealing performance of the cooling tower radiator is judged as follows:

[0023] When the pressure indicator reading reaches the threshold pressure, the breakaway plug is closed;

[0024] Record the pressure drop of the pressure indicator gauge during the preset pressure holding time;

[0025] When the pressure drop is not greater than the pressure drop threshold, it is judged that the sealing of the cooling tower radiator is qualified;

[0026] When the pressure drop is greater than the pressure drop threshold, it is determined that the sealing of the cooling tower radiator is unqualified.

[0027] The cooling tower radiator sealing test device and test method disclosed in the present invention can realize the sealing test of the radiator under the vehicle after the composite cooling tower is assembled. If the sealing of the cooling tower radiator is found to be unqualified, the leakage site can be processed in advance to avoid disassembly and rework of large components after loading, thereby improving work efficiency and work quality and reducing work costs. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] The accompanying drawings herein are incorporated into the specification and constitute a part of the specification, illustrate embodiments consistent with the present disclosure, and together with the specification are used to explain the principles of the present disclosure. Obviously, the accompanying drawings described below are only some embodiments of the present disclosure, and for ordinary technicians in this field, other accompanying drawings can be obtained based on these accompanying drawings without creative work.

[0029] In order to better understand the present disclosure, reference may be made to the embodiments shown in the following drawings. The components in the drawings are not necessarily to scale, and related elements may be omitted in order to emphasize and clearly illustrate the technical features of the present disclosure. In addition, related elements or components may have different arrangements as known in the art. In addition, in the drawings, the same reference numerals represent the same or similar components in each drawing. Among them:

[0030] Figure 1 It is a schematic diagram of the overall structure of a locomotive composite cooling tower;

[0031] Figure 2 A schematic diagram of an exemplary embodiment of a cooling tower radiator sealing test device disclosed in the present invention;

[0032] Figure 3 It is a schematic diagram of a blocking plate in an exemplary embodiment of a cooling tower radiator sealing test device disclosed in the present invention.

[0033] The following are the descriptions of the reference numerals:

[0034] 1. Main air inlet duct; 11. Ground air source air inlet; 12. Breakaway valve; 2. Branch air inlet duct; 21. Connecting flange; 22. Pressure indicator; 3. Sealing plate; 41. Coolant inlet hose; 42. Coolant outlet hose; 43. Radiator; 44. Cabinet; 45. Cooling fan. DETAILED DESCRIPTION

[0035] Example embodiments will now be described more fully with reference to the accompanying drawings. However, the example embodiments can be implemented in a variety of forms and should not be construed as limited to the embodiments set forth herein; rather, these embodiments are provided so that the present disclosure will be comprehensive and complete and fully convey the concepts of the example embodiments to those skilled in the art. The same reference numerals in the figures represent the same or similar structures, and thus their detailed description will be omitted. In addition, the drawings are only schematic illustrations of the present disclosure and are not necessarily drawn to scale.

[0036] Unless otherwise specified or explained, the technical terms or scientific terms used in this disclosure shall have the common meanings understood by people with ordinary skills in the field to which this disclosure belongs. The use of "first" and "second" in this disclosure is only used as a mark, and is not intended to limit the number, importance or order of its objects.

[0037] The terms "a", "an", "the", "said" and "at least one" are used to indicate the presence of one or more elements / components / etc.; the words "including" or "having" mean that the elements appearing before the word include the elements listed after the word and their equivalents, without excluding other elements.

[0038] The terms "connected", "fixed", etc. should be understood in a broad sense. For example, "connected" can be a fixed connection, a movable connection, an integral connection, or a detachable connection. It can be a direct connection or an indirect connection through an intermediate medium.

[0039] The disclosed embodiments provide a cooling tower radiator sealing test device and a cooling tower radiator sealing test method, which can perform a sealing test on a cooling tower radiator 43 when the composite cooling tower is not installed on a vehicle.

[0040] Please refer to Figure 1 The overall structural diagram of the locomotive composite cooling tower shown in the figure, the composite cooling tower may include a cabinet 44, a cooling fan 45 and a radiator 43, wherein the radiator 43 may be a water cooler, and the composite cooling tower may also include connecting hoses, flanges and other components.

[0041] The radiator 43 is connected to the cooling circuit of the locomotive main converter cabinet. Coolant flows in the cooling circuit of the main converter cabinet. The coolant in the cooling circuit circulates the heat generated during the operation of the main converter cabinet to the heat dissipation circuit of the composite cooling tower radiator 43 through the cooling circuit, and cools the radiator 43 through the cooling fan 45. The cooled coolant circulates back to the main converter cabinet through the cooling circuit, and the heat dissipation of the main converter cabinet is achieved in this reciprocating manner.

[0042] Specifically, the radiator 43 has a heat dissipation circuit, and the two ends of the heat dissipation circuit are respectively provided with a coolant inlet hose 41 and a coolant outlet hose 42. The coolant inlet hose 41 is used to be connected to the cooling circuit of the locomotive main converter cabinet so that the coolant in the cooling circuit of the main converter cabinet flows into the cooling tower radiator 43; the coolant outlet hose 42 is used to be connected to the cooling circuit of the locomotive main converter cabinet so that the coolant cooled by the cooling tower radiator 43 flows back to the cooling circuit of the main converter cabinet.

[0043] The present invention provides a cooling tower radiator sealing test device, referring to Figure 2 as well as Figure 3 As shown, it includes: a main air inlet pipe 1, a branch air inlet pipe 2 and a blocking plate 3; wherein, one end of the main air inlet pipe 1 is provided with a ground wind source air inlet 11 for connecting to a ground wind source; one end of the branch air inlet pipe 2 is connected to the main air inlet pipe 1, and the other end is provided with a test device air outlet, and the test device air outlet is used to be connected to a coolant inlet hose 41; the blocking plate 3 is used to be connected to a coolant outlet hose 42 to block the coolant outlet hose 42.

[0044] When in use, the main air inlet pipe 1 can be connected to the branch air inlet pipe 2. The main air inlet pipe 1 is connected to the ground wind source through the ground wind source air inlet 11, and the branch air inlet pipe 2 is connected to the coolant inlet hose 41 through the test device air outlet. The sealing plate 3 blocks the coolant outlet hose 42.

[0045] After the cooling tower radiator sealing test device is connected, when the sealing test is performed, the wind from the ground wind source is connected to the main air inlet pipe 1, then flows to the branch air inlet pipe 2, and finally enters the cooling tower radiator 43 through the air outlet of the test device. Since the coolant outlet hose 42 is blocked, if the radiator 43 is well sealed, the pressure in the circuit can rise to a certain threshold pressure, and can be maintained for a period of time without a large pressure drop. On the contrary, if the pressure in the circuit cannot rise to the threshold pressure, or the pressure drop during the pressure holding time is greater than the pressure drop threshold, it means that the cooling tower radiator 43 is unqualified in sealing, and there are leaks inside the radiator 43 and the connecting pipelines, which need to be checked and handled. Figure 2 The arrows beside the pipes in the figure show the flow direction of the gas in the test device when air is blown from the ground wind source to the radiator 43.

[0046] In the related art, the composite cooling tower radiator 43 is usually tested for sealing performance together with the whole vehicle after loading. The coolant inlet hose 41 and the coolant outlet hose 42 of the radiator 43 are connected to the cooling circuit of the main converter cabinet. Once a leak occurs, the coolant in the cooling circuit of the main converter cabinet, the coolant in the coolant inlet hose 41 and the coolant outlet hose 42, and the coolant inside the radiator 43 need to be discharged and all the connecting pipes with the main converter cabinet need to be removed before repair, which seriously affects the maintenance and production progress of the locomotive. At the same time, when repairing the leaking position, it is necessary to replace the pipeline connection rubber parts, and the coolant lost and leaked during the disassembly process needs to be refilled, which increases the maintenance cost of the locomotive.

[0047] The cooling tower radiator sealing test device disclosed in the present invention can realize the sealing test of the radiator 43 under the vehicle after the composite cooling tower is assembled. If the sealing of the cooling tower radiator 43 is found to be unqualified, the leakage site can be processed in advance to avoid disassembly and rework of large components after loading, thereby improving the work efficiency and work quality and reducing the work cost. In addition, the test device disclosed in the present invention is detachably connected to the cooling tower radiator 43, which has the advantage of being easy to carry and move, and can be moved between different sites, further improving the work efficiency.

[0048] refer to Figure 1 The overall structural diagram of a locomotive composite cooling tower is shown in FIG. Figure 2 A schematic diagram of an exemplary embodiment of a cooling tower radiator seal test device of the present disclosure is shown and Figure 3 The schematic diagram of the blocking plate shown in the figure shows that in an exemplary embodiment of the present disclosure, the cooling tower radiator 43 has at least two unconnected heat dissipation circuits, each of which is connected to the cooling circuit of the locomotive main converter cabinet through a set of coolant inlet hoses 41 and coolant outlet hoses 42. The cooling tower radiator sealing test device includes at least two branch air inlet pipes 2, which are used to be connected to the coolant inlet hoses 41 in a one-to-one correspondence; the cooling tower radiator sealing test device includes at least two blocking plates 3, which are used to be connected to the coolant outlet hoses 42 in a one-to-one correspondence.

[0049] For example, in other embodiments, the cooling tower radiator 43 has multiple (for example, three, four, etc.) unconnected heat dissipation circuits, and each heat dissipation circuit is connected to the cooling circuit of the locomotive main converter cabinet through a set of coolant inlet hoses 41 and coolant outlet hoses 42. The test device may include multiple branch air inlet pipes 2, which are connected to the coolant inlet hoses 41 in a one-to-one correspondence, and multiple blocking plates 3, which are connected to the coolant outlet hoses 42 in a one-to-one correspondence. Multiple branch air inlet pipes 2 can simultaneously detect multiple heat dissipation circuits of the composite cooling tower radiator 43, with fast detection speed and high efficiency.

[0050] refer to Figure 2 As shown, each branch air inlet pipe 2 can be connected to the main air inlet pipe 1 at the same position. For example, the cooling tower radiator sealing test device includes two branch air inlet pipes 2, which are used to be connected to two coolant inlet hoses 41 in a one-to-one correspondence. The two branch air inlet pipes 2 are connected to the main air inlet pipe 1 at the same position. Exemplarily, the main air inlet pipe 1 and the branch air inlet pipe 2 include hard pipes made of stainless steel, and each section of the pipe is connected using a pipe joint. The branch air inlet pipe 2 is connected to the main air inlet pipe 1 at the same position, which can improve the strength of the main air inlet pipe 1 and facilitate the disassembly and assembly and adjustment of the number of branch air inlet pipes 2 of the test device.

[0051] In an exemplary embodiment of the present disclosure, the branch air inlet duct 2 is connected to the main air inlet duct 1 through a first quick-release connector, which has the advantage of being easy to disassemble, assemble and adjust. The first quick-release connector has at least three quick-release interfaces, which are respectively connected to the main air inlet duct 1 and at least two branch air inlet ducts 2. In other exemplary embodiments, the first quick-release connector may have more quick-release interfaces, for example, four quick-release interfaces, which can be respectively connected to the main air inlet duct 1 and three branch air inlet ducts 2. In other exemplary embodiments, the first quick-release connector may have two quick-release interfaces, which can be respectively connected to the main air inlet duct 1 and one branch air inlet duct 2.

[0052] Exemplarily, a pressure indicator 22 is provided on any branch air inlet pipe 2. Figure 2 As shown, the cooling tower radiator sealing test device includes two branch air inlet pipes 2, which are used to be connected to two coolant inlet hoses 41 in a one-to-one correspondence. A pressure indicator 22 is provided on one of the branch air inlet pipes 2. For example, the pressure indicator 22 and the stainless steel pipeline of the branch air inlet pipe 2 are also connected by a quick-release connector.

[0053] For example, reference Figure 2 As shown, the pipe section of the main air inlet pipe 1 provided with the ground air source air inlet 11 is parallel to and not co-linear with the pipe section of the branch air inlet pipe 2 provided with the test device air outlet, and the ground air source air inlet 11 and the test device air outlet are in opposite directions. For example, for multiple branch air inlet pipes 2, the pipe sections of each branch air inlet pipe 2 provided with the test device air outlet are parallel to each other, and are also staggered in parallel with the pipe section of the main air inlet pipe 1 provided with the ground air source air inlet 11, so that the air path of the cooling tower radiator sealing test device disclosed in the present invention is more unobstructed, and the disassembly, assembly and connection are more concise.

[0054] refer to Figure 2 As shown, in an exemplary embodiment of the present disclosure, a breakaway plug door 12 is provided on the main air inlet pipe 1, which is used to open or close the air path between the ground air source and the branch air inlet pipe 2. Specifically, the breakaway plug door 12 can be a cylindrical breakaway plug door. The opening of the breakaway plug door 12 can be adjusted.

[0055] Illustratively, in a process of conducting a sealing test on a cooling tower radiator sealing test device disclosed in the present invention, before the test, the break plug 12 is first adjusted to the closed position, and then the air outlet of the test device is connected to the coolant inlet hose 41, and the blocking plate 3 is connected to the coolant outlet hose 42. For example, the air outlet of the test device has a connecting flange 21, and the connecting flange 21 is welded and connected to the branch air inlet pipe 2, and the connecting flange 21 is used to connect to the coolant inlet hose 41. When connecting the sealing test device to the radiator 43, the connecting flange 21 can be connected to the coolant inlet hose 41 using a hexagonal bolt M10X40, a flat washer M10, a standard spring washer M10, and a hexagonal nut M10, and the blocking plate 3 is installed on the flange of the coolant outlet hose 42, and the bolts of each flange are tightened diagonally until the connection is tight.

[0056] After the ground air source duct is cleaned, it is connected to the air inlet of the test device, that is, the ground air source air inlet 11 of the main air inlet duct 1. For example, the ground air source air inlet 11 can be connected to the ground air source through a quick-release connector, which is convenient for quick connection and disassembly. After all the components of the test device are connected and installed, turn on the ground air source control switch, and then slowly open the breakaway valve 12. Observe the display of the pressure indicator 22, and close the breakaway valve 12 when the reading of the pressure indicator 22 reaches the threshold pressure.

[0057] Record the reading of the pressure indicator 22 during the preset pressure holding time. For example, use a stopwatch to time and observe whether the reading of the pressure indicator 22 decreases during the preset pressure holding time. If there is no decrease, or the pressure drop is small (not greater than the set pressure drop threshold), it means that the sealing of the cooling tower radiator 43 is qualified, and the radiator 43 and the connecting pipes are well sealed. If the reading of the pressure indicator 22 decreases during the preset pressure holding time, and the pressure drop is obvious (greater than the set pressure drop threshold), it means that the sealing of the cooling tower radiator 43 is unqualified and there is a leak. You can use a foam leak detector to detect the radiator 43 and the connecting pipes, find the leak and deal with it, and then re-test the sealing after the treatment until it is qualified.

[0058] Exemplarily, the threshold pressure is set to 0.5 MPa, and the preset holding time is 30 minutes.

[0059] After the test, first disconnect the connection joint between the test device and the ground air source, that is, disconnect the connection between the ground air source air inlet 11 and the ground air source, and then slowly open the breakaway valve 12 to discharge the internal pressure of the radiator 43 and the connecting pipeline through the ground air source air inlet 11, until the pressure indicator 22 reads zero, which proves that the test pressure of the cooling tower radiator sealing test device has been completely emptied, and the components of the test device can be safely disassembled.

[0060] According to another aspect of the present disclosure, a cooling tower radiator sealing test method is provided, which is used to perform a sealing test on a cooling tower radiator 43 according to the aforementioned cooling tower radiator sealing test device, and the cooling tower radiator sealing test method comprises:

[0061] Step S1000: Connect the cooling tower radiator sealing test device, and connect the main air inlet pipe 1 to the branch air inlet pipe 2.

[0062] Step S2000: connect the main air inlet pipe 1 to the ground air source, connect the air outlet of the test device to the coolant inlet hose 41 , and connect the blocking plate 3 to the coolant outlet hose 42 .

[0063] Step S3000: Turn on the ground wind source to inflate the cooling tower radiator 43.

[0064] Step S4000: Determine the sealing performance of the cooling tower radiator 43.

[0065] Wherein, step S4000 of determining the sealing performance of the cooling tower radiator 43 may include:

[0066] Step S4100: When the reading of the pressure indicator 22 reaches the threshold pressure, the breakaway plug 12 is closed.

[0067] Step S4200: Record the pressure drop reading of the pressure indicator 22 within the preset pressure holding time.

[0068] Step S4300: When the pressure drop is not greater than the pressure drop threshold, it is determined that the sealing performance of the cooling tower radiator 43 is qualified.

[0069] Step S4400: When the pressure drop is greater than the pressure drop threshold, it is determined that the sealing of the cooling tower radiator 43 is unqualified.

[0070] The specific embodiments of each step of the cooling tower radiator sealing test method disclosed in the present invention have been described in detail in the exemplary implementation of the cooling tower radiator sealing test device mentioned above, and will not be repeated here.

[0071] The cooling tower radiator sealing test method disclosed in the present invention can realize the sealing test of the radiator 43 under the vehicle after the composite cooling tower is assembled. If it is found that the sealing of the cooling tower radiator 43 is unqualified, the leakage site can be processed in advance to avoid disassembly and rework of large components after loading, thereby improving work efficiency and work quality and reducing work costs.

[0072] Those skilled in the art will readily appreciate other embodiments of the present disclosure after considering the specification and practicing the invention disclosed herein. The present disclosure is intended to cover any variations, uses or adaptations of the present disclosure, which follow the general principles of the present disclosure and include common knowledge or customary techniques in the art that are not disclosed in the present disclosure. The description and examples are intended to be exemplary only, and the true scope and spirit of the present disclosure are indicated by the appended claims.

Claims

1. A cooling tower radiator sealing test device, characterized in that: The cooling tower radiator (43) comprises a coolant inlet hose (41) and a coolant outlet hose (42); the coolant inlet hose (41) is used to be connected to the cooling circuit of the locomotive main converter cabinet so that the coolant in the cooling circuit of the main converter cabinet flows into the cooling tower radiator (43); the coolant outlet hose (42) is used to be connected to the cooling circuit of the locomotive main converter cabinet so that the coolant cooled by the cooling tower radiator (43) flows back into the cooling circuit of the main converter cabinet; The cooling tower radiator sealing test device comprises: A main air inlet pipe (1), one end of which is provided with a ground air source air inlet (11) for connecting to a ground air source; A branch air inlet pipe (2), one end of the branch air inlet pipe (2) being connected to the main air inlet pipe (1), and the other end of the branch air inlet pipe (2) being provided with an air outlet of a test device, the air outlet of the test device being used to be connected to the coolant inlet hose (41); A blocking plate (3) is used to be connected to the coolant outlet hose (42) to block the coolant outlet hose (42).

2. The cooling tower radiator sealing test device according to claim 1, characterized in that: The main air inlet pipe (1) is provided with a breakaway valve (12) for opening or closing the air path between the ground air source and the branch air inlet pipe (2).

3. The cooling tower radiator sealing test device according to claim 1, characterized in that: The cooling tower radiator (43) has at least two non-connected heat dissipation circuits, each heat dissipation circuit is connected to the locomotive main converter cabinet cooling circuit through a group of the coolant inlet hose (41) and the coolant outlet hose (42); the cooling tower radiator sealing test device includes at least two branch air inlet pipes (2) for connecting to the coolant inlet hose (41) in a one-to-one correspondence; the cooling tower radiator sealing test device includes at least two blocking plates (3) for connecting to the coolant outlet hose (42) in a one-to-one correspondence.

4. The cooling tower radiator sealing test device according to claim 3, characterized in that: The branch air inlet pipe (2) and the main air inlet pipe (1) are connected at the same position of the main air inlet pipe (1).

5. The cooling tower radiator sealing test device according to claim 4, characterized in that: The branch air inlet pipe (2) is connected to the main air inlet pipe (1) via a first quick-release connector, and the first quick-release connector has at least three quick-release interfaces.

6. The cooling tower radiator sealing test device according to claim 1, characterized in that: Any of the branch air inlet pipes (2) is provided with a pressure indicator (22).

7. The cooling tower radiator sealing test device according to claim 1, characterized in that: The air outlet of the test device has a connecting flange (21), the connecting flange (21) is welded to the branch air inlet pipe (2), and the connecting flange (21) is used to be connected to the coolant inlet hose (41).

8. The cooling tower radiator sealing test device according to claim 1, characterized in that: The main air inlet pipe (1) and the branch air inlet pipe (2) comprise hard pipes made of stainless steel, the pipe section of the main air inlet pipe (1) provided with the ground wind source air inlet (11) and the pipe section of the branch air inlet pipe (2) provided with the test device air outlet are parallel and not co-linear, and the ground wind source air inlet (11) and the test device air outlet are in opposite directions.

9. A cooling tower radiator sealing test method, characterized in that: A cooling tower radiator sealing test device for use according to any one of claims 1 to 8 is used to perform a sealing test on a cooling tower radiator (43), wherein the cooling tower radiator sealing test method comprises: Connecting the cooling tower radiator sealing test device, the main air inlet pipe (1) is connected to the branch air inlet pipe (2); The main air inlet pipe (1) is connected to the ground air source, the air outlet of the test device is connected to the coolant inlet hose (41), and the blocking plate (3) is connected to the coolant outlet hose (42); Opening the ground wind source to inflate the cooling tower radiator (43); The sealing performance of the cooling tower radiator (43) is determined.

10. The cooling tower radiator sealing test method according to claim 9, characterized in that: The main air inlet pipe (1) is provided with a breakaway plug valve (12), and any of the branch air inlet pipes (2) is provided with a pressure indicator (22). The sealing performance of the cooling tower radiator (43) is judged by: When the reading of the pressure indicator (22) reaches a threshold pressure, the breakaway plug (12) is closed; Recording the pressure drop of the pressure indicator (22) within a preset pressure-maintaining time; When the pressure drop is not greater than the pressure drop threshold, it is judged that the sealing performance of the cooling tower radiator (43) is qualified; When the pressure drop is greater than the pressure drop threshold, it is determined that the sealing performance of the cooling tower radiator (43) is unqualified.

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