Novel heat exchanger airtightness detection tool

By adopting a PEEK sealing head and an HNBR sealing ring, combined with a support block and pad design, the problem of cumbersome clamping and poor versatility of heat exchanger airtightness testing fixtures has been solved, achieving efficient and convenient airtightness testing and adapting to heat exchangers with different structures.

CN224108987UActive Publication Date: 2026-04-10NINGBO TUOPU GROUP CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-07-08
Publication Date
2026-04-10

AI Technical Summary

Technical Problem

Existing heat exchanger airtightness testing fixtures have cumbersome clamping procedures, are inconvenient to operate, have poor versatility, and pose a risk of seal leakage.

Method used

Using PEEK sealing heads and HNBR sealing rings, combined with a highly integrated support block and gasket design, the heat exchanger can be tested for water and reagents after a single clamping. By replacing the support block and gasket, it can be adapted to different size structures, improving sealing performance and versatility.

Benefits of technology

Reduce operational burden, improve testing efficiency, lower development costs, achieve end face and radial sealing, and adapt to airtightness testing of heat exchangers with different structures.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model relates to the technical field of air tightness detection tools, in particular to a novel air tightness detection tool for a heat exchanger, which reduces the operation burden of personnel and improves the detection efficiency. The PEEK material realizes end face and radial sealing according to structural requirements, and fits an actual application scene of the heat exchanger; the highly-integrated tool can adapt to airtightness detection of heat exchangers of different sizes and structures through replacement of the supporting blocks and the cushion blocks, and the development cost of the airtightness tool is greatly saved. Comprising a base and a first supporting block, and the first supporting block is installed on the outer side wall of the base; the device comprises a base and further comprises a positioning assembly, a moving device, a first air inlet head, an adapter, air inlet blocks, a pressing block, a sealing head, a first sealing ring, a second air inlet head and a second sealing ring, the positioning assembly is arranged on the base, the two air inlet blocks are installed on the base through the moving device, and the moving device is used for driving the two air inlet blocks to move horizontally. And every two groups of adapters are respectively arranged on one group of air inlet blocks in a communicating manner.
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Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of air tightness detection frock, in particular to a novel heat exchanger air tightness detection frock. BACKGROUND

[0002] In the automobile thermal management system, the heat exchanger assembly air tightness detection is one of necessary test items and one of factory detection items, and the conventional heat exchanger air tightness detection plug frock water agent side is detected separately, needs multiple clamping and needs to adopt C type clamp locking, has sealing leakage risk.

[0003] 1. Clamping steps are complicated: the water / agent side of the ordinary air tightness detection frock is detected separately, needs twice clamping and needs to lock C type clamp to carry out air tightness detection after;

[0004] 2. It is difficult to take frock and part assembly: ordinary frock adopts high strength steel alloy, frock dead weight is about 3kg, and the operator is inconvenient to take;

[0005] 3. Poor universality: ordinary frock has poor universality, can only adapt to single heat exchanger, and cannot be transformed to adapt to new structure heat exchanger. INVENTION CONTENTS

[0006] To solve the above technical problems, the utility model provides a novel heat exchanger air tightness detection frock that can reduce the operation burden of personnel, improve detection efficiency, realize end face and radial sealing according to the structure demand of PEEK material, fit the actual application scene of heat exchanger, and greatly save the development cost of air tightness frock of different size structures through the replacement of support block and pad.

[0007] The utility model discloses a novel heat exchanger airtightness detection frock, including base and first support block, and first support block installs on the outside wall of base, still including positioning assembly, mobile device, first air inlet head, adapter, air inlet block, press block, sealing head, first sealing ring, second air inlet head and second sealing ring, be provided with positioning assembly on the base, and two sets of air inlet blocks are installed on the base through mobile device, and mobile device is used for driving two sets of air inlet blocks horizontal movement, wherein every two sets of adapter are communicated and set up on a set of air inlet block respectively, and four sets of first air inlet heads are communicated and set up on four sets of adapters respectively, and two sets of press blocks are installed on the outside wall of two sets of air inlet blocks respectively, and two sets of sealing heads are communicated and set up on the first set of air inlet block, and two sets of first sealing rings are installed on two sets of sealing heads respectively, and two sets of second air inlet heads are communicated and set up on the second set of air inlet block, and two sets of second sealing rings are installed on two sets of second air inlet heads respectively, the heat exchanger is placed on the base through positioning assembly, and two sets of air inlet blocks are moved horizontally through mobile device, make two sets of air inlet blocks through two sets of first sealing rings and two sets of second air inlet head and heat exchanger form good seal, then through four sets of first air inlet head and external equipment connection, thereby the airtightness detection of heat exchanger is carried out, realizes after once clamping, carries out the detection of water and reagent to heat exchanger respectively, through the cooperation of two sets of first sealing rings and two sets of second air inlet head, can carry out the positive and negative direction inflation detection to the flow channel, can repeatedly verify the airtightness result of heat exchanger, through setting up sealing head and second sealing ring, improve the sealing performance, do not react with helium and air.

[0008] Preferably, the mobile device includes a cushion block, a quick pressing head, a slide rail, and a slide block, two sets of cushion blocks are installed on the outside wall of the base, two sets of quick pressing heads are installed on the two sets of cushion blocks, two sets of slide rails are arranged on the outside wall of the base, two sets of slide blocks are slidingly installed on the two sets of slide rails, two sets of air inlet blocks are installed on the outside wall of the two sets of slide blocks, and the moving ends of the two sets of quick pressing heads are connected with the two sets of air inlet blocks; after the heat exchanger is placed on the base, the personnel operate the two sets of quick pressing heads to drive the two sets of air inlet blocks to move, so that the two sets of air inlet blocks are connected with the heat exchanger, and the convenience of operation is improved.

[0009] Preferably, the positioning assembly includes a first support block, a reinforcing rib, a support plate, and a second support block, the first support block is arranged on the outside wall of the base, the reinforcing rib and the support plate are installed on the base in cooperation, and the second support block is installed on the outside wall of the support plate; the heat exchanger is placed between the first support block and the second support block, the positioning convenience of the heat exchanger is improved, the universality of the frock for different structure products is improved by replacing the models of the first support block and the second support block.

[0010] Preferably, the sealing head is made of PEEK material.

[0011] The second sealing ring adopts HNBR material; PEEK material can realize end face and radial sealing according to structural requirements, is suitable for actual application scenarios of the heat exchanger, and has very strong pressure bearing capacity and will not scratch the product sealing surface.

[0012] The two groups of cushion blocks are installed on the base through bolts; the operation convenience and flexibility of the two groups of quick pressing heads are improved.

[0013] Compared with the prior art, the utility model has the beneficial effects that:

[0014] 1. Reduce the personnel operation burden and improve the detection efficiency;

[0015] 2. PEEK material realizes end face and radial sealing according to structural requirements, and is suitable for actual application scenarios of the heat exchanger;

[0016] 3. The highly integrated tooling can adapt to the airtight detection of heat exchangers of different sizes through the replacement of support blocks and cushion blocks, and greatly saves the development cost of airtight tooling. BRIEF DESCRIPTION OF DRAWINGS

[0017] Figure 1 It is the axonometric structure schematic diagram of the utility model;

[0018] Figure 2 It is the axonometric local structure schematic diagram of the connection of the cushion block and the quick pressing head;

[0019] Figure 3 It is the axonometric structure schematic diagram of the connection of the support plate and the second support block;

[0020] Figure 4 It is the axonometric structure schematic diagram of the connection of the base and the first support block.

[0021] Markings in the drawings: 1, base; 2, cushion block; 3, quick pressing head; 4, sliding rail; 5, sliding block; 6, first air inlet head; 7, adapter; 8, air inlet block; 9, pressing block; 10, sealing head; 11, first sealing ring; 12, first support block; 13, reinforcing rib; 14, support plate; 15, second air inlet head; 16, second sealing ring; 17, second support block. DETAILED DESCRIPTION

[0022] In order to facilitate the understanding of the utility model, the utility model will be described more fully below with reference to the relevant drawings. The utility model can be realized in many different forms, and is not limited to the embodiments described herein. On the contrary, the purpose of providing these embodiments is to make the disclosure of the utility model more thorough and comprehensive.

[0023] Embodiment 1

[0024] As Figures 1 to 4As shown, the utility model of a novel heat exchanger airtightness detection frock, including base 1 and first support block 12, first support block 12 installs on the outside wall of base 1, still including positioning assembly, moving device, first air inlet head 6, adapter 7, air inlet block 8, briquetting 9, sealing head 10, first sealing ring 11, second air inlet head 15 and second sealing ring 16, positioning assembly is provided on base 1, two sets of air inlet block 8 are installed on base 1 by moving device, moving device is used to drive two sets of air inlet block 8 horizontal movement, wherein every two sets of adapter 7 are respectively communicated and set up on a set of air inlet block 8, four sets of first air inlet head 6 are respectively communicated and set up on four sets of adapter 7, two sets of briquetting 9 are respectively installed on the outside wall of two sets of air inlet block 8, two sets of sealing head 10 are communicated and set up on first set of air inlet block 8, two sets of first sealing ring 11 are respectively installed on two sets of sealing head 10, two sets of second air inlet head 15 are communicated and set up on second set of air inlet block 8, two sets of second sealing ring 16 are respectively installed on two sets of second air inlet head 15,

[0025] As Figure 1 shown, the moving device includes cushion block 2, quick pressure head 3, slide rail 4 and sliding block 5, two sets of cushion block 2 are installed on the outside wall of base 1, two sets of quick pressure head 3 are respectively installed on two sets of cushion block 2, two sets of slide rail 4 are set up on the outside wall of base 1, two sets of sliding block 5 are respectively slidably installed on two sets of slide rail 4, two sets of air inlet block 8 are respectively installed on the outside wall of two sets of sliding block 5, and the moving end of two sets of quick pressure head 3 is respectively connected with two sets of air inlet block 8 in cooperation;

[0026] In the embodiment, the heat exchanger is placed on the base 1 by the positioning assembly, the two sets of air inlet block 8 are moved horizontally by the moving device, the two sets of air inlet block 8 form good sealing with the heat exchanger through the two sets of first sealing ring 11 and the two sets of second air inlet head 15, then the four sets of first air inlet head 6 are connected with the external equipment, so that the airtightness of the heat exchanger is detected, the water and the reagent of the heat exchanger are detected respectively after one clamping, the flow channel can be detected in forward and reverse directions through the cooperation of the two sets of first sealing ring 11 and the two sets of second air inlet head 15, the airtightness of the heat exchanger can be repeatedly verified, the sealing performance is improved by setting the sealing head 10 and the second sealing ring 16, and the helium and the air do not react.

[0027] Embodiment 2

[0028] On the basis of embodiment 1, as Figure 1 shown, the utility model of a novel heat exchanger airtightness detection frock, the positioning assembly includes first support block 12, reinforcing rib 13, support plate 14 and second support block 17, first support block 12 is set up on the outside wall of base 1, reinforcing rib 13 and support plate 14 are cooperatively installed on base 1, and second support block 17 is installed on the outside wall of support plate 14;

[0029] AsFigure 2 The sealing head 10 is made of PEEK material as shown;

[0030] The second sealing ring 16 is made of HNBR material;

[0031] The two groups of cushion blocks 2 are installed on the base 1 through bolts;

[0032] In the embodiment, when the heat exchanger is placed on the base 1, personnel drive the two groups of air inlet blocks 8 through the operation of the two groups of quick pressing heads 3 to make the two groups of air inlet blocks 8 connected with the heat exchanger, improve the convenience of operation, place the heat exchanger between the first supporting block 12 and the second supporting block 17, improve the positioning convenience of the heat exchanger, and change the model of the first supporting block 12 and the second supporting block 17 to improve the universality of the tool for different structures of products.

[0033] The novel heat exchanger air tightness detection tool of the utility model, when working, places the heat exchanger on the base 1 through the positioning assembly, drives the two groups of air inlet blocks 8 to move horizontally through the moving device, makes the two groups of air inlet blocks 8 form good sealing with the heat exchanger through the two groups of first sealing rings 11 and the two groups of second air inlet heads 15, then connects with external equipment through the four groups of first air inlet heads 6, thereby carries out air tightness detection to the heat exchanger, realizes that the heat exchanger is detected to water and reagent respectively after once clamping, and can carry out forward and reverse inflation detection to the flow channel through the cooperation of the two groups of first sealing rings 11 and the two groups of second air inlet heads 15, can repeatedly verify the heat exchanger air tightness result.

[0034] The quick pressing head 3 of the novel heat exchanger air tightness detection tool of the utility model is purchased on the market, and the technical personnel in the industry only needs to install and operate according to the attached instruction manual, without the creative labor of the technical personnel in the field.

[0035] The preferred embodiments of the utility model are described above, and it should be pointed out that, for ordinary technical personnel in the technical field, without departing from the technical principles of the utility model, a number of improvements and modifications can be made, and these improvements and modifications should be regarded as the protection range of the utility model.

Claims

1. A novel heat exchanger airtight detection tool, comprising a base (1) and a first supporting block (12), the first supporting block (12) being installed on the outer sidewall of the base (1); characterized in that, The application further comprises a positioning assembly, a moving device, a first air inlet head (6), an adapter (7), an air inlet block (8), a pressing block (9), a sealing head (10), a first sealing ring (11), a second air inlet head (15) and a second sealing ring (16). The positioning assembly is arranged on the base (1). Two groups of air inlet blocks (8) are installed on the base (1) through the moving device. The moving device is used for driving the two groups of air inlet blocks (8) to move horizontally. Two groups of adapters (7) are respectively and communicatively arranged on one group of air inlet blocks (8). Four groups of first air inlet heads (6) are respectively and communicatively arranged on the four groups of adapters (7). Two groups of pressing blocks (9) are respectively installed on the outer side walls of the two groups of air inlet blocks (8). Two groups of sealing heads (10) are communicatively arranged on the first group of air inlet blocks (8). Two groups of first sealing rings (11) are respectively installed on the two groups of sealing heads (10). Two groups of second air inlet heads (15) are communicatively arranged on the second group of air inlet blocks (8). Two groups of second sealing rings (16) are respectively installed on the two groups of second air inlet heads (15).

2. The novel heat exchanger air tightness detection tool of claim 1, wherein, The moving device comprises a cushion block (2), a quick pressing head (3), a slide rail (4) and a slide block (5). Two groups of cushion blocks (2) are installed on the outer side walls of the base (1). Two groups of quick pressing heads (3) are respectively installed on the two groups of cushion blocks (2). Two groups of slide rails (4) are arranged on the outer side walls of the base (1). Two groups of slide blocks (5) are respectively and slidingly installed on the two groups of slide rails (4). Two groups of air inlet blocks (8) are respectively installed on the outer side walls of the two groups of slide blocks (5). The moving ends of the two groups of quick pressing heads (3) are respectively connected with the two groups of air inlet blocks (8).

3. The novel heat exchanger air tightness detection tool of claim 1, wherein, The positioning assembly comprises a first supporting block (12), a reinforcing rib (13), a supporting plate (14) and a second supporting block (17). The first supporting block (12) is arranged on the outer side wall of the base (1). The reinforcing rib (13) and the supporting plate (14) are installed on the base (1) in a matched mode. The second supporting block (17) is installed on the outer side wall of the supporting plate (14).

4. The novel heat exchanger air tightness detection tool of claim 1, wherein, The sealing head (10) is made of PEEK material. The second sealing ring (16) is made of HNBR material.

5. The novel heat exchanger air tightness detection tool of claim 2, wherein, The two groups of cushion blocks (2) are installed on the base (1) through bolts.

Citation Information

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