Heat exchanger performance test bench

Abstract

The utility model discloses a heat exchanger performance test bench, which relates to the technical field of heat exchanger detection and comprises a test bench body, two sides of the top end of the test bench body are slidably connected with supporting seats through adjusting mechanisms, the top ends of the supporting seats are provided with placing grooves, and the top ends of the two placing grooves are provided with a heat exchanger body. A sliding rail is connected to one side of the supporting seat, moving seats are slidably connected to the two sides of the interior of the sliding rail, and a moving plate is connected to one side of each moving seat; the heat exchanger supporting device has the advantages that the two supporting seats are matched, the distance between the two supporting seats is adjusted according to the length of a heat exchanger, heat exchangers with different lengths can be supported, the two corresponding limiting plates move towards the middle through the matching of the movable seats and the movable plates, the two ends of a heat exchanger body are clamped and limited, and the heat exchanger supporting device is simple in structure and convenient to use. During performance testing, the heat exchanger body is prevented from shaking, and performance testing can be carried out on heat exchangers of different models.

Description

Technical Field

[0001] The utility model relates to a performance test bench, in particular to a heat exchanger performance test bench, belonging to the technical field of heat exchanger detection. Background Technique

[0002] A heat exchanger is a device that transfers part of the heat of a hot fluid to a cold fluid, also known as a heat exchanger. Heat exchangers play an important role in many industrial productions such as chemical industry, petroleum, power, food and others. In chemical production, heat exchangers can be used as heaters, coolers, condensers, evaporators, reboilers, etc., and are widely used. After production, a performance test bench is needed to detect the heat transfer performance of the heat exchanger.

[0003] Among them, the "heat exchanger performance detection workbench" disclosed in the application number "202120308094.4" is also an increasingly mature technology, including a heat exchange box fixed on the test bench. Liquid inlet pipes and liquid outlet pipes are respectively inserted through the two side surfaces of the heat exchange box. The end parts of the liquid inlet pipes and liquid outlet pipes located inside the heat exchange box are respectively communicated with the corresponding end parts of the heat exchanger body to be detected. In the utility model, the heat exchanger body to be tested is placed into the heat exchange box, and the heat exchanger body is communicated with the corresponding liquid inlet pipe and liquid outlet pipe. At this time, a liquid with a lower temperature is introduced into the heat exchange box through a liquid supply pipe and then discharged from a liquid delivery pipe, while a high-temperature liquid is introduced into the liquid inlet pipe and sent to the heat exchanger body and then discharged from the liquid outlet pipe to achieve continuous liquid supply, so that the liquid flow rate of each pipeline is the same as that in actual use to ensure the accuracy of detection. The sensors for detecting temperature will continuously detect the liquid temperature at each pipe orifice until the temperature is stable, and then the heat conversion efficiency can be calculated. After further retrieval, the "a heat exchanger performance test bench" disclosed in the application number "202310928104.8" includes: a workbench; a docking part installed inside the workbench; wherein, the docking part includes a docking pipe, and a movable ring and a fixed ring are sleeved outside the docking pipe; a movable hook is hinged outside the fixed ring, and the connecting pipe of the heat exchanger can be hooked by the movable hook; when the movable ring and the fixed ring are attached to each other, a limiting block covers the outside of the movable hook to limit the movement range of the movable hook. In the a heat exchanger performance test bench of the present invention, since the movable hook is used to grab the connecting pipe on the heat exchanger and then the position of the movable hook is restricted by the limiting block, effectively solving the technical problem that the existing heat exchanger performance test bench cannot be quickly docked with the connecting pipe of the heat exchanger during use, thereby realizing the quick docking of the connecting pipe, and at the same time, the connection can be kept stable after docking.

[0004] However, the above method still has the following defects in actual use: it is difficult to stably fix shell-and-tube heat exchangers of different models on the test bench, which is likely to cause the heat exchanger to shake during the detection process. Therefore, the present utility model provides a heat exchanger performance test bench. Content of the Utility Model

[0005] The purpose of the present utility model is to provide a heat exchanger performance test bench to solve the problem that it is difficult to stably fix shell-and-tube heat exchangers of different models on the test bench as proposed in the above background technology.

[0006] To achieve the above purpose, the present utility model provides the following technical solution: a heat exchanger performance test bench, including a test bench body. Both sides of the top of the test bench body are slidably connected with support seats through adjusting mechanisms. A placement groove is opened at the top of the support seat. A heat exchanger body is placed on the tops of the two placement grooves. One side of the support seat is connected with a slide rail. Both sides inside the slide rail are slidably connected with moving seats. One side of the moving seat is connected with a moving plate. The top of the moving plate is connected with a connecting plate. The top of one side of the connecting plate is connected with a limiting plate.

[0007] As a preferred technical solution of the present utility model, a bidirectional lead screw is rotatably connected to the inside of the slide rail through a bearing. The outer wall of the bidirectional lead screw is threadedly connected with the inside of the moving seat. Guide grooves are opened at the top and bottom of the slide rail. The middle parts of the top and bottom of the moving seat are both connected with guide blocks slidably connected with the guide grooves.

[0008] As a preferred technical solution of the present utility model, a mounting plate is connected to one side of the front of the slide rail. A driving motor is provided on one side of the mounting plate. One end of the bidirectional lead screw penetrates the front of the slide rail and is connected with the transmission shaft of the driving motor.

[0009] As a preferred technical solution of the present utility model, a rubber pad is connected to the inside of the limiting plate.

[0010] As a preferred technical solution of the present utility model, liquid collecting grooves are opened on both sides of the top of the test bench body. A reinforcing steel plate is connected to the top of the liquid collecting groove. A liquid collecting port is opened at the top of the reinforcing steel plate.

[0011] As a preferred technical solution of the present utility model, liquid outlet pipes are connected to the bottoms of both sides of the test bench body. A switching valve is provided in the middle of the liquid outlet pipe.

[0012] As a preferred technical solution of the present utility model, the adjusting mechanism includes two side plates and four positioning plates. The two side plates are respectively arranged on both sides of the top end of the test bench body. Two guide rods are connected between the two side plates. The four positioning plates are respectively arranged in the middle of the front side and the middle of the back side of the two support seats. A sliding hole which is slidably matched with the guide rod is formed on one side of the positioning plate.

[0013] As a preferred technical solution of the present utility model, two cross plates are connected to the top end of the test bench body. The bottom end of the positioning plate is slidably connected to the top end of the cross plate. One side of the top end of the positioning plate is threadedly connected with a screw rod. Threaded holes are formed on both sides of the top end of the cross plate. The bottom end of the screw rod penetrates through the positioning plate and is threadedly connected with the threaded hole. A handle is connected to the middle of the top end of the positioning plate.

[0014] Compared with the related art, a heat exchanger performance test bench provided by the present utility model has the following

[0015] Beneficial effects:

[0016] Through the cooperation of the two support seats, the distance between the two support seats is adjusted according to the length of the heat exchanger, so as to support heat exchangers of different lengths. Through the cooperation of the moving seat and the moving plate, the two corresponding limiting plates move towards the middle to clamp and limit the two ends of the heat exchanger body, preventing the heat exchanger body from shaking during the performance test, and enabling performance detection of heat exchangers of different models. Description of the Drawings

[0017] Figure 1 is a structural schematic diagram of the present utility model;

[0018] Figure 2 is an exploded structural schematic diagram of the present utility model;

[0019] Figure 3 is an exploded structural schematic diagram of the slide rail of the present utility model;

[0020] Figure 4 is of the present utility model Figure 2 enlarged structural schematic diagram at A.

[0021] In the figure: 1. Test bench body; 2. Support base; 3. Placing groove; 4. Heat exchanger body; 5. Adjusting mechanism; 6. Slide rail; 7. Moving seat; 8. Moving plate; 9. Connecting plate; 10. Limiting plate; 11. Bi-directional lead screw; 12. Guide groove; 13. Guide block; 14. Mounting plate; 15. Driving motor; 16. Rubber pad; 17. Liquid collecting tank; 18. Reinforcing steel plate; 19. Liquid collecting port; 20. Liquid outlet pipe; 21. Switch valve; 501. Side plate; 502. Guide rod; 503. Positioning plate; 504. Slide hole; 505. Cross plate; 506. Screw; 507. Screw hole; 508. Handle. Detailed implementation mode

[0022] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0023] Embodiment 1:

[0024] Please refer to Figures 1-4 , the present invention provides a heat exchanger performance test bench, including a test bench body 1. Both sides of the top of the test bench body 1 are slidably connected with support bases 2 through an adjusting mechanism 5. A placing groove 3 is opened at the top of the support base 2. A heat exchanger body 4 is placed on the tops of the two placing grooves 3. The distance between the two support bases 2 is adjusted according to the length of the heat exchanger body 4 to stably support both ends of the heat exchanger body 4. One side of the support base 2 is fixedly connected with a slide rail 6. Both sides inside the slide rail 6 are slidably connected with a moving seat 7. One side of the moving seat 7 is fixedly connected with a moving plate 8. The top of the moving plate 8 is fixedly connected with a connecting plate 9. The top of one side of the connecting plate 9 is fixedly connected with a limiting plate 10. The moving seat 7 drives the moving plate 8 to move towards the middle, and then drives the two corresponding limiting plates 10 to move towards the middle, clamping and limiting both ends of the heat exchanger body 4. A rubber pad 16 is fixedly connected to the inner side of the limiting plate 10. The rubber pad 16 increases the friction between the limiting plate 10 and the heat exchanger body 4 and improves the clamping stability. Different models of heat exchangers can be clamped and limited through the support base 2 and the limiting plate 10, preventing the heat exchanger from shaking during the performance test;

[0025] Inside the sliding rail 6, a bidirectional lead screw 11 is rotatably connected through bearings. The outer wall of the bidirectional lead screw 11 is threadedly connected to the inside of the moving seat 7. Guide grooves 12 are provided at both the top and bottom of the sliding rail 6. In the middle of the top and bottom of the moving seat 7, guide blocks 13 slidably connected to the guide grooves 12 are fixedly connected. With the cooperation of the bidirectional lead screw 11 and the moving seat 7, two corresponding moving seats 7 can be driven to move linearly at the same time. The sliding fit between the guide grooves 12 and the guide blocks 13 limits the moving direction of the moving seat 7. On one side of the front of the sliding rail 6, a mounting plate 14 is fixedly connected. On one side of the mounting plate 14, a driving motor 15 is fixedly provided. One end of the bidirectional lead screw 11 penetrates the front of the sliding rail 6 and is fixedly connected to the transmission shaft of the driving motor 15. Starting the driving motor 15 provides power for the bidirectional lead screw 11;

[0026] On both sides of the top of the test bench body 1, liquid collecting grooves 17 are provided. At the top of the liquid collecting grooves 17, reinforcing steel plates 18 are fixedly connected. At the top of the reinforcing steel plates 18, liquid collecting ports 19 are provided. There are multiple liquid collecting ports 19, which are arranged equidistantly at the top of the reinforcing steel plates 18. The reinforcing steel plates 18 strengthen the support for the support seats 2 and the heat exchanger body 4. After the performance test, the liquid in the heat exchanger body 4 can enter the liquid collecting grooves 17 through the liquid collecting ports 19 to collect the liquid;

[0027] At the bottom of both sides of the test bench body 1, liquid outlet pipes 20 are fixedly connected. In the middle of the liquid outlet pipes 20, switch valves 21 are fixedly provided. Opening the switch valves 21 can discharge and recycle the collected liquid;

[0028] Specifically, first place the heat exchanger body 4 on the tops of the two support seats 2, and then start the two driving motors 15 at the same time to make the bidirectional lead screw 11 rotate. Under the threaded cooperation of the bidirectional lead screw 11 and the moving seat 7, the moving seat 7 moves linearly towards the middle, driving the moving plate 8 and the connecting plate 9 to move, and further driving the two corresponding limiting plates 10 to move towards the middle at the same time, clamping and limiting the two ends of the heat exchanger body 4. When performing the performance test, it prevents the heat exchanger body 4 from shaking, so as to connect the refrigerant inlet and outlet and the heat medium inlet and outlet on the heat exchanger body 4.

[0029] Embodiment 2:

[0030] The adjusting mechanism 5 includes two side plates 501 and four positioning plates 503. The two side plates 501 are respectively fixedly provided on both sides of the top of the test bench body 1. Between the two side plates 501, two guide rods 502 are fixedly connected. The four positioning plates 503 are respectively fixedly provided in the middle of the front and the back of the two support seats 2. On one side of the positioning plate 503, a sliding hole 504 slidably matched with the guide rod 502 is provided. The guide rod 502 limits the moving direction of the positioning plate 503, and further limits the moving direction of the support seat 2, so that the support seat 2 moves linearly;

[0031] At the top of the test bench body 1, two cross plates 505 are fixedly connected. The bottom end of the positioning plate 503 is slidably connected to the top end of the cross plate 505. One side of the top end of the positioning plate 503 is threadedly connected with a screw rod 506. On both sides of the top end of the cross plate 505, screw holes 507 are provided. There are multiple screw holes 507, which are equidistantly arranged on both sides of the top end of the cross plate 505. The bottom end of the screw rod 506 passes through the positioning plate 503 and is threadedly connected with the screw hole 507. In the middle of the top end of the positioning plate 503, a handle 508 is fixedly connected. By means of the handle 508, it is convenient to pull the positioning plate 503, thereby facilitating the adjustment of the position of the support seat 2. Select a suitable screw hole 507, and limit the position of the positioning plate 503 through the screw rod 506, and then limit the position of the support seat 2;

[0032] Specifically, first pull the handle 508 to pull the positioning plate 503 and the support seat 2 to the end of the heat exchanger, then select a suitable screw hole 507 to align the screw rod 506 with the selected screw hole 507, and then rotate the screw rod 506 to threadedly connect the screw rod 506 with the screw hole 507, so as to limit the position of the positioning plate 503, and then limit the position of the support seat 2.

[0033] During use, first adjust the positions of the two support seats 2 according to the length of the heat exchanger body 4. Pull the handle 508 to make the positioning plate 503 and the support seat 2 move linearly until the support seat 2 is located at the end of the heat exchanger. Then select a suitable screw hole 507 to align the screw rod 506 with the selected screw hole 507, and then rotate the screw rod 506 to threadedly connect the screw rod 506 with the screw hole 507, so as to limit the position of the positioning plate 503, and then limit the position of the support seat 2. Then place the heat exchanger body 4 on the top ends of the two support seats 2, and it can support heat exchanger bodies 4 of different lengths;

[0034] Then start the two drive motors 15 simultaneously to make the bidirectional lead screw 11 rotate. Under the threaded cooperation of the bidirectional lead screw 11 and the moving seat 7, the moving seat 7 moves linearly towards the middle, driving the moving plate 8 and the connecting plate 9 to move, and then driving the two corresponding limiting plates 10 to move towards the middle simultaneously, clamping and limiting the two ends of the heat exchanger body 4 to prevent the heat exchanger body 4 from shaking, so as to connect the refrigerant inlet and outlet and the heat medium inlet and outlet on the heat exchanger body 4. After the performance test, disconnect the connection of the heat exchanger body 4, and the excess liquid enters the liquid collecting tank 17 from the liquid collecting port 19 for collection and recovery.

[0035] Although the embodiments of the present invention have been shown and described, for those of ordinary skill in the art, it can be understood that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principle and spirit of the present invention. The scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A heat exchanger performance test bench, comprising a test bench body (1), characterized in that, On both sides of the top of the test bench body (1), there are support seats (2) slidably connected through adjusting mechanisms (5). A placement groove (3) is provided at the top of the support seat (2). An exchanger body (4) is placed on the tops of the two placement grooves (3). One side of the support seat (2) is connected with a slide rail (6). On both sides inside the slide rail (6), there are moving seats (7) slidably connected. One side of the moving seat (7) is connected with a moving plate (8). The top of the moving plate (8) is connected with a connecting plate (9). At the top of one side of the connecting plate (9), there is a limiting plate (10).

2. The performance test bench for a heat exchanger according to claim 1, characterized in that: Inside the slide rail (6), there is a bidirectional lead screw (11) rotatably connected through a bearing. The outer wall of the bidirectional lead screw (11) is threadedly connected with the inside of the moving seat (7). At the top and bottom of the slide rail (6), there are guide grooves (12) provided. In the middle of the top and bottom of the moving seat (7), there are guide blocks (13) connected which are slidably connected with the guide grooves (12).

3. The performance test bench for a heat exchanger according to claim 2, characterized in that: On one side of the front of the slide rail (6), there is a mounting plate (14). On one side of the mounting plate (14), there is a driving motor (15). One end of the bidirectional lead screw (11) penetrates through the front of the slide rail (6) and is connected with the transmission shaft of the driving motor (15).

4. The performance test bench for a heat exchanger according to claim 1, characterized in that: Inside the limiting plate (10), there is a rubber pad (16) connected.

5. A heat exchanger performance test bench according to claim 1, characterized in that: On both sides of the top of the test bench body (1), there are liquid collecting grooves (17) provided. At the top of the liquid collecting groove (17), there is a reinforcing steel plate (18) connected. At the top of the reinforcing steel plate (18), there is a liquid collecting port (19) provided.

6. The performance test bench for a heat exchanger according to claim 5, characterized in that: At the bottom of both sides of the test bench body (1), there are liquid outlet pipes (20) connected. In the middle of the liquid outlet pipe (20), there is a switch valve (21).

7. The performance test bench for a heat exchanger according to claim 1, characterized in that: The adjusting mechanism (5) includes two side plates (501) and four positioning plates (503). The two side plates (501) are respectively arranged on both sides of the top of the test bench body (1). Between the two side plates (501), there are two guide rods (502) connected. The four positioning plates (503) are respectively arranged in the middle of the front and the middle of the back of the two support seats (2). On one side of the positioning plate (503), there is a sliding hole (504) which is slidably matched with the guide rod (502).

8. A heat exchanger performance test bench according to claim 7, characterized in that: On the top of the test bench body (1), there are two cross plates (505) connected. The bottom end of the positioning plate (503) is slidably connected with the top end of the cross plate (505). On one side of the top end of the positioning plate (503), there is a screw rod (506) threadedly connected. On both sides of the top end of the cross plate (505), there are screw holes (507) provided. The bottom end of the screw rod (506) penetrates through the positioning plate (503) and is threadedly connected with the screw hole (507). In the middle of the top end of the positioning plate (503), there is a handle (508) connected.

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