Air tightness test device for cooling tower radiator core body

By designing a special airtightness test device, using the pressure plate and the gas delivery system to perform airtightness testing on the cooling tower radiator core, the problem of inaccurate test results in the prior art is solved, and high-accurate airtightness test is achieved.

CN222671327UActive Publication Date: 2025-03-25HUNAN LIANCHENG TRACK EQUIP CO LTD
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Patent Information

Application Number
CN202421434632.4
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-06-21
Publication Date
2025-03-25
Estimated Expiration
2034-06-21

AI Technical Summary

Technical Problem

The prior art lacks a special airtightness test device to conduct airtightness testing on the aluminum radiator core of the locomotive cooling tower, resulting in inaccurate test results.

Method used

A gas-tightness test device for core of cooling tower radiator is designed, including a first pressure plate and a second pressure plate. The sealing plate of the radiator core is sealed by these pressure plates, and a gas delivery port and a pressure detection port are provided. By injecting air and maintaining a certain pressure, the sealing property of the core flow channel is detected.

Benefits of technology

The device can completely seal the radiator core, ensure the accuracy of air tightness tests, and quickly locate the air leakage points and improve the test efficiency.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model discloses an air tightness test device for a cooling tower radiator core body, which relates to the technical field of air tightness test devices and comprises a radiator core body, a plurality of flow channels are arranged at two ends of the radiator core body, sealing plates are respectively arranged at two ends of the radiator core body, and a plurality of air holes are arranged on the sealing plates. The runners at the two ends of the radiator core body correspond to the air holes of the sealing plates at the two ends respectively; the first pressing plate and the second pressing plate are used for sealing the sealing plates at the two ends respectively; the first pressing plate is provided with a gas conveying port and a pressure detection port, the gas conveying port is communicated with a gas source through a pipeline, and the pressure detection port is communicated with a pressure gauge through a pipeline. According to the device, the radiator core body is sealed and then placed into the water tank together, air is injected into the core body and pressure is maintained, whether a flow channel of the radiator core body is qualified or not is judged by detecting whether air leakage occurs or not, the specific leakage point position can be quickly confirmed, the accuracy of an air tightness test is ensured, and the test efficiency is improved.
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Description

Technical Field

[0001] The utility model relates to the technical field of air tightness test devices, in particular to an air tightness test device for a cooling tower radiator core. Background Art

[0002] The aluminum radiator core of the locomotive cooling tower is composed of a flow channel and end sealing plates. The flow channel wall is very thin, and the connection between the flow channel and the end sealing plates is laser wire welding. At the same time, the radiator core has sealing requirements and needs to pass the airtightness test.

[0003] In the related technology, there is no special air tightness test device to carry out air tightness test on the aluminum radiator core of the locomotive cooling tower. The air tightness test device used for other cores must be used for the test of the radiator core. However, due to the special size and position of the radiator core interface, the sealing effect of the flow channel of the radiator core is not good, and it is impossible to ensure that the flow channel of the radiator core is leak-free, which seriously affects the accuracy of the test results. Therefore, a new air tightness test device is urgently needed to cooperate with the radiator core of the locomotive cooling tower to ensure that the air tightness test is carried out after a complete seal is formed. Utility Model Content

[0004] The utility model aims to provide an air tightness test device for a cooling tower radiator core to solve at least one aspect of the problems and defects raised in the above-mentioned background technology.

[0005] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0006] An air tightness test device for a cooling tower radiator core, comprising:

[0007] A radiator core, wherein the two ends of the radiator core have a plurality of flow channels, the two ends of the radiator core are respectively provided with sealing plates, the sealing plates are provided with a plurality of air holes, and the flow channels at the two ends of the radiator core are respectively provided corresponding to the air holes of the sealing plates at the two ends;

[0008] A first pressing plate and a second pressing plate, wherein the first pressing plate and the second pressing plate seal two end sealing plates respectively;

[0009] The first pressing plate is provided with a gas delivery port and a pressure detection port. The gas delivery port is connected to a gas source through a pipeline, and the pressure detection port is connected to a pressure gauge through a pipeline.

[0010] The air tightness test device for the cooling tower radiator core according to this scheme has at least the following technical effects:

[0011] The cooling tower radiator core air tightness test device seals the sealing plates at both ends of the radiator core through the first pressure plate and the second pressure plate respectively, so that the flow channels at both ends of the radiator core are sealed between the first pressure plate and the second pressure plate respectively. The test device puts the radiator core into the water tank after it is completely sealed, injects air into the core through the gas delivery port, maintains the pressure value at 0.4Mpa-0.5Mpa, and maintains the pressure for 30 to 40 minutes. Whether the flow channel of the radiator core is qualified is judged by detecting whether there is leakage, and the air tightness of the contact position of the device with all the flow channels of the radiator core makes it easy to quickly confirm the specific leakage point when a flow channel of the radiator core leaks, thereby ensuring the accuracy of the air tightness test and helping to improve the test efficiency.

[0012] As a further solution of the utility model: a sealing gasket is respectively arranged between the first pressing plate and one end sealing plate, and between the second pressing plate and the other end sealing plate.

[0013] Since sealing gaskets are respectively arranged between the first pressure plate and one end sealing plate and between the second pressure plate and the other end sealing plate, the air tightness between the pressure plate and the sealing plate can be further improved, effectively preventing gas leakage, thereby improving the authenticity and accuracy of the radiator core test.

[0014] As a further solution of the utility model: a first groove is provided on one side of the first pressing plate, a second groove is provided on one side of the second pressing plate, and the sealing plates at both ends are respectively embedded in the first groove and the second groove.

[0015] By setting a first groove on one side of the first pressure plate, setting a second groove on one side of the second pressure plate, and embedding the sealing plates at both ends in the first groove and the second groove respectively, so that the sealing plates at both ends are embedded in the pressure plate grooves, the position of the sealing plates can be effectively fixed to prevent the pressure plates or sealing plates from shifting or falling off during the test, and help to further improve the sealing performance, reduce the risk of gas leakage, and ensure the accuracy and reliability of the test.

[0016] As a further solution of the utility model: a plurality of through holes are respectively arranged along the four sides of the first pressing plate and the second pressing plate, and a plurality of pressing blocks are arranged corresponding to the plurality of through holes.

[0017] As a further solution of the utility model: a plurality of the pressing blocks are provided with through holes, and a plurality of the pressing blocks are respectively connected with the through-hole bolts of the first pressing plate and the second pressing plate.

[0018] As a further solution of the utility model: a convex portion is arranged at the bottom of the pressing block, and the convex portion presses the edges around the sealing plate.

[0019] A plurality of through holes are respectively provided along the four sides of the first pressing plate and the second pressing plate, and a plurality of pressing blocks are provided corresponding to the plurality of through holes. The plurality of pressing blocks are respectively connected with the through-hole bolts of the first pressing plate and the second pressing plate, and a protrusion is provided at the bottom of the pressing block. The protrusion presses the four edges of the sealing plate, which can more firmly fix the position of the sealing plate and avoid displacement or looseness during the test. The protrusion can press the four edges of the sealing plate, further improving the sealing between the pressing plate and the sealing plate, reducing the risk of gas leakage, and ensuring the accuracy and reliability of the test. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] In order to facilitate understanding by those skilled in the art, the present invention is further described below in conjunction with the accompanying drawings.

[0021] Figure 1 This is a schematic diagram of the assembled structure of an air tightness test device for a cooling tower radiator core;

[0022] Figure 2 It is a schematic diagram of the first sealing plate structure of an air tightness test device for a cooling tower radiator core;

[0023] Figure 3 It is a schematic diagram of the second sealing plate structure of an air tightness test device for a cooling tower radiator core;

[0024] Figure 4 The present invention is a schematic diagram of the briquetting structure of an air tightness test device for a cooling tower radiator core.

[0025] Reference numerals:

[0026] 10. Radiator core; 101. Closing plate; 102. First pressing plate; 103. Second pressing plate; 104. Gas delivery port; 105. Pressure detection port; 106. Pressure gauge; 107. First groove; 108. Second groove; 109. Through hole; 110. Press block; 111. Perforation; 112. Protrusion. DETAILED DESCRIPTION

[0027] The embodiments of the present invention are described in detail below, and examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, and cannot be understood as limiting the present invention.

[0028] In the description of the present invention, it should be understood that descriptions involving orientation, such as up, down, front, back, left, right, etc., indicating orientations or positional relationships, are based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention.

[0029] In the description of the present utility model, "several" means one or more, "more" means more than two, "greater than", "less than", "exceed" etc. are understood to exclude the number itself, and "above", "below", "within" etc. are understood to include the number itself. If there is a description of "first" or "second", it is only used for the purpose of distinguishing the technical features, and cannot be understood as indicating or implying the relative importance or implicitly indicating the number of the indicated technical features or implicitly indicating the order of the indicated technical features.

[0030] In the description of the present invention, unless otherwise clearly defined, terms such as setting, installing, connecting, etc. should be understood in a broad sense, and technicians in the relevant technical field can reasonably determine the specific meanings of the above terms in the present invention based on the specific content of the technical solution.

[0031] In order to make the purpose, technical solution and advantages of the utility model more clear, the utility model is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the utility model and are not used to limit the utility model, that is, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. The components of the embodiments of the utility model described and shown in the drawings here can be arranged and designed in various different configurations.

[0032] Therefore, the following detailed description of the embodiments of the utility model provided in the accompanying drawings is not intended to limit the scope of the utility model claimed for protection, but merely represents selected embodiments of the utility model. Based on the embodiments of the utility model, all other embodiments obtained by those skilled in the art without creative work are within the scope of protection of the utility model.

[0033] like Figure 1-4The utility model embodiment shown is an air tightness test device for a cooling tower radiator core, comprising: a radiator core 10, wherein the radiator core 10 has a plurality of flow channels at both ends, sealing plates 101 are respectively provided at both ends of the radiator core 10, and a plurality of air holes are provided on the sealing plates 101, and the flow channels at both ends of the radiator core 10 are respectively provided corresponding to the air holes of the sealing plates 101 at both ends; a first pressing plate 102 and a second pressing plate 103, wherein the first pressing plate 102 and the second pressing plate 103 seal the sealing plates 101 at both ends respectively; a gas delivery port 104 and a pressure detection port 105 are provided on the first pressing plate 102, the gas delivery port 104 is connected to the gas source through a pipeline, and the pressure detection port 105 is connected to the pressure gauge 106 through a pipeline.

[0034] Specifically, the cooling tower radiator core air tightness test device seals the sealing plates 101 at both ends of the radiator core 10 through the first pressure plate 102 and the second pressure plate 103, so that the flow channels at both ends of the radiator core 10 are sealed between the first pressure plate 102 and the second pressure plate 103, respectively. The test device completely seals the radiator core 10 and puts it into the water tank together, injects air into the core through the gas delivery port 104, maintains the pressure value at 0.4Mpa-0.5Mpa, and maintains the pressure for 30 minutes to 40 minutes, and determines whether the flow channel of the radiator core 10 is qualified by detecting whether there is leakage, and the air tightness of the contact position of the device with all the flow channels of the radiator core 10 makes it easy to quickly confirm the specific leakage point when a flow channel leaks in the radiator core 10, thereby ensuring the accuracy of the air tightness test and helping to improve the test efficiency.

[0035] Furthermore, sealing gaskets are respectively arranged between the first pressing plate 102 and one end sealing plate 101 and between the second pressing plate 103 and the other end sealing plate 101 .

[0036] Specifically, since sealing gaskets are respectively arranged between the first pressure plate 102 and one end sealing plate 101 and between the second pressure plate 103 and the other end sealing plate 101, the air tightness between the pressure plate and the sealing plate can be further improved, effectively preventing gas leakage, thereby improving the authenticity and accuracy of the radiator core 10 test.

[0037] like Figure 1-3 As shown, a first groove 107 is provided on one side of the first pressing plate 102 , a second groove 108 is provided on one side of the second pressing plate 103 , and the sealing plates 101 at both ends are respectively embedded in the first groove 107 and the second groove 108 .

[0038] Specifically, by setting a first groove 107 on one side of the first pressure plate 102, setting a second groove 108 on one side of the second pressure plate 103, and embedding the sealing plates 101 at both ends in the first groove 107 and the second groove 108 respectively, so that the sealing plates 101 at both ends are embedded in the pressure plate grooves, the position of the sealing plates 101 can be effectively fixed to prevent the pressure plates or sealing plates from shifting or falling off during the test, and help to further improve the sealing performance, reduce the risk of gas leakage, and ensure the accuracy and reliability of the test.

[0039] like Figure 2-4 As shown, a plurality of through holes 109 are respectively provided along the four sides of the first pressing plate 102 and the second pressing plate 103, and a plurality of pressing blocks 110 are provided corresponding to the plurality of through holes 109; the plurality of pressing blocks 110 are all provided with through holes 111, and the plurality of pressing blocks 110 are respectively bolted to the through holes 109 of the first pressing plate 102 and the second pressing plate 103; a protrusion 112 is provided at the bottom of the pressing block 110, and the protrusion 112 presses the four sides of the sealing plate 101.

[0040] Specifically, a plurality of through holes 109 are respectively provided along the four sides of the first pressure plate 102 and the second pressure plate 103, and a plurality of pressure blocks 110 are provided corresponding to the plurality of through holes 109. The plurality of pressure blocks 110 are respectively bolted to the through holes 109 of the first pressure plate 102 and the second pressure plate 103, and a protrusion 112 is provided at the bottom of the pressure block 110. The protrusion 112 presses the four sides of the sealing plate 101, which can more firmly fix the position of the sealing plate 101 and avoid displacement or looseness during the test. In addition, the protrusion 112 can press the four sides of the sealing plate 101, thereby further improving the sealing between the pressure plate and the sealing plate 101, reducing the risk of gas leakage, and ensuring the accuracy and reliability of the test.

[0041] It should also be noted that the device can quickly and accurately complete the air tightness test of the radiator core 10, and at the same time, it can also perform tests on similar products or products that require air tightness testing.

[0042] In the description of this specification, the description with reference to the terms "one embodiment", "some embodiments", "illustrative embodiments", "examples", "specific examples", or "some examples" means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the utility model. In this specification, the schematic representation of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner.

[0043] Although the embodiments of the present invention have been shown and described, those skilled in the art will appreciate that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the claims and their equivalents.

Claims

1. An air tightness test device for a cooling tower radiator core, characterized in that: include: A radiator core (10), wherein the two ends of the radiator core (10) have a plurality of flow channels, the two ends of the radiator core (10) are respectively provided with sealing plates (101), the sealing plates (101) are provided with a plurality of air holes, and the flow channels at the two ends of the radiator core (10) are respectively arranged corresponding to the air holes of the sealing plates (101) at the two ends; A first pressing plate (102) and a second pressing plate (103), wherein the first pressing plate (102) and the second pressing plate (103) respectively seal the sealing plates (101) at both ends; The first pressing plate (102) is provided with a gas delivery port (104) and a pressure detection port (105); the gas delivery port (104) is connected to a gas source via a pipeline, and the pressure detection port (105) is connected to a pressure gauge (106) via a pipeline.

2. The air tightness test device for a cooling tower radiator core according to claim 1, characterized in that: Sealing gaskets are respectively arranged between the first pressing plate (102) and one end sealing plate (101), and between the second pressing plate (103) and the other end sealing plate (101).

3. The air tightness test device for a cooling tower radiator core according to claim 1, characterized in that: A first groove (107) is provided on one side of the first pressing plate (102), a second groove (108) is provided on one side of the second pressing plate (103), and the sealing plates (101) at both ends are respectively embedded in the first groove (107) and the second groove (108).

4. The air tightness test device for a cooling tower radiator core according to claim 1, characterized in that: A plurality of through holes (109) are respectively arranged along the periphery of the first pressing plate (102) and the second pressing plate (103), and a plurality of pressing blocks (110) are arranged corresponding to the plurality of through holes (109).

5. The air tightness test device for a cooling tower radiator core according to claim 4, characterized in that: The plurality of pressing blocks (110) are each provided with a through hole (111), and the plurality of pressing blocks (110) are respectively bolted to the through holes (109) of the first pressing plate (102) and the second pressing plate (103).

6. The air tightness test device for a cooling tower radiator core according to claim 5, characterized in that: The bottom of the pressing block (110) is provided with a raised portion (112), and the raised portion (112) is pressed against the edges around the sealing plate (101).