Tool for ball passing test of heat exchanger
By designing the tooling of the heat exchanger ball test, including the pneumatic rhineal grip, the trachea section, and the removable air -blowing gun head, the problem of gas leakage is solved, and the accuracy and efficiency of the test small ball can be successfully passed smoothly.
Patent Information
- Application Number
- CN202420376961.1
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-02-28
- Publication Date
- 2025-01-28
- Estimated Expiration
- 2034-02-28
AI Technical Summary
In the prior art, when conducting a heat exchanger ball test, gas leakage problem causes the test ball to be unable to blow out from the other end of the heat exchange tube, affecting the accuracy of the test.
Designed a workstory for the heat exchanges, including air grig headplaces, trachea sections, and detachable air -blowing gun heads. The air -blowing gun head has sealing parts to prevent gas leakage. diameter.
Through the setting of the sealing parts, the gas leakage is effectively prevented, and the test small ball can be smoothly blown out of the other end of the heat exchange pipe, which improves the accuracy and test efficiency of the ball test.
Smart Images
Figure CN222419463U_ABST
Abstract
Description
Technical Field
[0001] The present application belongs to the field of heat exchangers, and in particular to a tooling for a ball-passing test of a heat exchanger. Background Art
[0002] As one of the important equipment in the industrial production process, the performance of the heat exchanger directly affects the production efficiency and product quality. The ball test is an effective method to detect the fluid mechanics performance of the heat exchanger. In the ball test, the test ball is injected into the nozzle of the heat exchange tube and then compressed air is blown into the heat exchange tube through the air pipe to observe whether the small ball at the other end can pass through the pipe smoothly. The time for the ball to pass through the inside of the heat exchange tube is recorded. If the test ball fails to go out at the other end of the heat exchange tube, it means that the heat exchange tube is severely deformed and needs to be replaced. The ball test can verify whether the fluid mechanics performance of the heat exchanger meets the design requirements, provide guidance for the normal operation of the heat exchanger, and also help to improve the production efficiency and product quality of the enterprise. Due to the different diameters of heat exchange tubes of different specifications, there is no tooling specifically for the ball test. The common practice in the existing production workshop is that the worker directly aligns the air pipe connected to the compressor with the nozzle of the heat exchange tube to be passed. This operation will cause some gas leakage, which may cause the test ball to fail to blow through, affecting the accuracy of the ball test. It can be seen that the existing technology needs to be further improved and improved. Utility Model Content
[0003] The utility model provides a tooling for a ball-passing test of a heat exchanger, which is used to solve the problem that when an air pipe is directly aimed at the heat exchange pipe opening through which the ball is to be passed, there will be gas leakage, which may cause the test ball to be unable to be blown out from the other end of the heat exchange pipe, thus affecting the accuracy of the ball-passing test.
[0004] In order to achieve the above purpose, the utility model provides the following technical solutions:
[0005] A tool for a ball-passing test of a heat exchanger, comprising an air path handle provided with an air path flow channel, an air inlet end of the air path handle connected to an air outlet pipe of an air compressor, an air outlet end connected to an air pipe section, an air outlet end of the air pipe section being detachably connected to air blowing gun heads of different sizes to adapt to heat exchange tube diameters of different specifications, and a sealing member being provided at the air blowing gun head to seal a gap between the air blowing gun head and an inner wall of the heat exchange tube to prevent gas leakage.
[0006] The utility model is used for the tooling of the heat exchanger ball test. The worker selects a blowing gun head of corresponding size according to the diameter of the heat exchange tube and installs it at the air outlet end of the air pipe section. When in use, the worker holds the air path handle and first puts the test ball into the pipe mouth of the heat exchange tube to be tested, and inserts the blowing gun head into the heat exchange tube. The sealing part of the blowing gun head seals the gap between the blowing gun head and the inner wall of the heat exchange tube to prevent gas leakage. The air compressor is turned on for testing. The setting of blowing gun heads of different sizes can adapt to heat exchange tubes of various diameters, and is easy to disassemble and assemble. The setting of the blowing gun head sealing part ensures the accuracy of the test results and improves the test efficiency.
[0007] In a preferred implementation, the sealing member is a rubber sleeve, which has good elasticity and resilience, can effectively fill and seal the gap between the blowing gun head and the contact surface of the heat exchange tube, provide a reliable sealing effect, low cost, and easy maintenance and replacement.
[0008] In a preferred implementation, the sealing member is an airbag, which can expand to squeeze between the air blowing gun head and the inner wall of the heat exchange tube, or shrink to facilitate the removal of the air blowing gun head.
[0009] The airbag has good elasticity and can adjust its shape, size and pressure according to the needs of its environment and application scenarios. It can be used repeatedly without frequent replacement.
[0010] In a preferred implementation, the air pipe section is arranged perpendicularly to the air circuit handle.
[0011] In a preferred implementation, the air pipe section and the air circuit handle are connected via an arc tube.
[0012] In a preferred implementation, the diameter of the air pipe section gradually decreases along the blowing direction.
[0013] In a preferred implementation, the air blowing gun head includes a hollow cylindrical section and a truncated cone section, and the wide end of the truncated cone section is threadedly connected to the air pipe section.
[0014] In a preferred implementation, the air circuit handle is detachably connected to the air outlet pipe. BRIEF DESCRIPTION OF THE DRAWINGS
[0015] The drawings described herein are used to provide a further understanding of the present invention and constitute a part of the present invention. The illustrative embodiments of the present invention and their descriptions are used to explain the present application and do not constitute an improper limitation on the present invention. In the drawings:
[0016] Figure 1 A schematic diagram of a schematic implementation of a ball-passing test fixture for a heat exchanger of the present application is depicted;
[0017] Figure 2Another schematic diagram of a heat exchanger ball-passing test fixture of the present application is shown;
[0018] Figure 3 A schematic diagram of the assembly structure of the components of the ball-passing test tooling for heat exchangers of the present application is depicted;
[0019] Description of labels:
[0020] 1-air circuit handle; 2-air pipe section; 3-curved tube; 4-blowing gun head; 5-air outlet pipe; 60-rubber sleeve; 61-air bag; 610-inflating tube. DETAILED DESCRIPTION
[0021] In the following, only some exemplary embodiments are briefly described. As those skilled in the art will appreciate, the described embodiments may be modified in various ways without departing from the spirit and scope of the present invention. Therefore, the drawings and descriptions are considered to be exemplary and non-restrictive in nature.
[0022] In the description of the present invention, it is necessary to understand that the terms "center", "upper", "lower", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "axial", "radial", "circumferential" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying 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. In the present invention, unless otherwise clearly specified and limited, a first feature being "upper" or "lower" than a second feature may be the first and second features directly contacting, or the first and second features indirectly contacting through an intermediate medium.
[0023] In the present utility model, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", "fixed" and the like should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral one; it can be directly connected, or indirectly connected through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. However, if it is indicated as a direct connection, it means that the two connected bodies are not connected through an intermediate structure, but are connected to form a whole only through a connecting structure. For ordinary technicians in this field, the specific meanings of the above terms in the present utility model can be understood according to the specific circumstances.
[0024] In the present invention, the descriptions of "first", "second", etc. are only used for descriptive purposes and cannot be understood as indicating or implying their relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" or "second" may explicitly or implicitly include at least one of the features.
[0025] The utility model is described below in conjunction with the accompanying drawings.
[0026] The specific plans adopted are:
[0027] like Figure 1-3 As shown, the utility model provides a tooling for a ball-passing test of a heat exchanger, comprising an air path handle 1 provided with an air path flow channel, the air inlet end of the air path handle 1 being connected to an air outlet pipe 5 of an air compressor, the air outlet end being connected to an air pipe section 2, the air outlet end of the air pipe section 2 being detachably connected to air blowing gun heads 4 of different sizes to adapt to heat exchange tube diameters of different specifications, the air blowing gun head 4 being provided with a sealing member to seal the gap between the air blowing gun head 4 and the inner wall of the heat exchange tube to prevent gas leakage.
[0028] The utility model relates to a heat exchanger ball-passing test tool. After a layer or a heat exchange tube is wound around the core tube of the heat exchanger, a worker selects a blow gun head 4 of a corresponding size according to the diameter of the heat exchange tube and installs it on the air outlet end of the air pipe section 2. When in use, the worker holds the air path handle 1, first puts the test ball into the orifice of the heat exchange tube to be tested, and inserts the blow gun head 4 into the heat exchange tube. The seal of the blow gun head 4 seals the gap between the blow gun head 4 and the inner wall of the heat exchange tube to prevent gas leakage. The air compressor is turned on for testing. The setting of the blow gun heads 4 of different sizes can adapt to heat exchange tubes of various diameters, and is convenient for disassembly and assembly. The setting of the seal of the blow gun head 4 ensures the accuracy of the test results and improves the test efficiency.
[0029] The specific implementation of the seal can be selected from one of the following embodiments:
[0030] Embodiment 1: The sealing member is a rubber sleeve 60, which has good elasticity and resilience, and can effectively fill and seal the gap between the air blowing gun head 4 and the contact surface of the heat exchange tube, providing a reliable sealing effect. The rubber sleeve 60 can naturally return to its original state when compressed or stretched, maintaining a stable sealing performance. The installation and replacement of the rubber sleeve 60 is relatively simple, and only the rubber sleeve 60 needs to be put on the air blowing gun head 4, making it more convenient and quick to repair and replace the sealing member.
[0031] Embodiment 2: The sealing member is an airbag 61, which can expand to squeeze between the air blowing gun head 4 and the inner wall of the heat exchange tube, or shrink to facilitate the removal of the air blowing gun head 4. The sealing member, as the airbag 61, has good elasticity, and can adjust its shape, size and pressure according to the needs of the environment and application scenario in which it is located. It can be used repeatedly without frequent replacement. When in use, the airbag 61 can be expanded by inflating the inflation tube 610 through an air pumping device, and the sealing plug of the inflation tube 610 can be opened when deflated.
[0032] As a preferred embodiment of the present application, the trachea segment 2 and the air circuit handle 1 are vertically arranged to facilitate the staff to hold. Furthermore, the trachea segment 2 and the air circuit handle 1 are connected by an arc tube 3, which can reduce the airflow turning resistance.
[0033] As a preferred embodiment of the present application, see Figure 3 , the diameter of the air pipe section 2 gradually decreases along the blowing direction. That is, the air pipe section 2 is a tapered pipe, and the airflow will accelerate when entering the tapered pipe. When the airflow passes through the tapered pipe, the cross-sectional area of the pipe gradually decreases. The same mass flow needs to pass through a smaller cross-sectional area, so the airflow speed will increase, which is conducive to the ball-passing test.
[0034] Similarly, the air blowing gun head 4 is also a tapered tube, see Figure 3 The air blowing gun head 4 includes a hollow cylindrical section and a truncated cone section. The wide end of the truncated cone section is threadedly connected to the air pipe section 2, which is easy to disassemble.
[0035] In a preferred implementation, the gas circuit handle 1 is detachably connected to the gas outlet pipe 5 .
[0036] The parts not described in the present invention can be realized by adopting or drawing on the existing technology.
[0037] The above are only specific implementations of the utility model, but the protection scope of the utility model is not limited thereto. Any technician familiar with the technical field can easily think of various changes or substitutions within the technical scope disclosed by the utility model, which should be included in the protection scope of the utility model. Therefore, the protection scope of the utility model should be based on the protection scope of the claims.
Claims
1. A tool for a heat exchanger ball-pass test, characterized in that: It includes an air path handle provided with an air path flow channel, the air inlet end of the air path handle is connected to the air outlet pipe of the air compressor, the air outlet end is connected to the air pipe section, the air outlet end of the air pipe section can be detachably connected to air blowing gun heads of different sizes to adapt to the diameters of heat exchange tubes of different specifications, and the air blowing gun head is provided with a sealing member to seal the gap between the air blowing gun head and the inner wall of the heat exchange tube to prevent gas leakage.
2. A tool for heat exchanger ball-passing test according to claim 1, characterized in that: The sealing element is a rubber sleeve.
3. The tooling for heat exchanger ball-passing test according to claim 1, characterized in that: The sealing member is an air bag, which can expand to be squeezed between the air blowing gun head and the inner wall of the heat exchange tube, or shrink to facilitate the removal of the air blowing gun head.
4. The tooling for heat exchanger ball-passing test according to claim 1, characterized in that: The air pipe section and the airway handle are arranged vertically.
5. A tool for heat exchanger ball-passing test according to claim 4, characterized in that: The air pipe section and the air path handle are connected via an arc tube.
6. The tooling for heat exchanger ball-passing test according to claim 1, characterized in that: The diameter of the air pipe section gradually decreases along the blowing direction.
7. The tooling for heat exchanger ball-passing test according to claim 1, characterized in that: The air blowing gun head comprises a hollow cylindrical section and a truncated cone section, and the wide end of the truncated cone section is threadedly connected with the air pipe section.
8. The tooling for heat exchanger ball-passing test according to claim 1, characterized in that: The gas circuit grip is detachably connected to the gas outlet pipe.