Device for detecting air tightness of heat exchanger

Abstract

The utility model provides a device for detecting air tightness of a heat exchanger, which belongs to the technical field of chemical filter material conveying and comprises a detection table, a functional mechanism is mounted on the upper surface of the detection table, a sealing mechanism is mounted on the surface of the detection table and positioned above the functional mechanism, and a storage drawer is slidably connected to the surface of the front surface of the detection table. According to the technical scheme, the heat exchanger can be placed through the functional mechanism, meanwhile, heat exchangers with different openings can be placed, then the heat exchanger is moved to the position below the sealing mechanism, the heat exchanger can be placed through the functional mechanism, the heat exchanger can be placed through the sealing mechanism, and therefore the heat exchanger can be placed conveniently. At the moment, the heat exchanger is sealed by the sealing mechanism, then the heat exchanger is detected by the functional mechanism, a detection result is displayed through the touch control screen, and at the moment, a worker can observe the detection result.

Description

Technical Field

[0001] The utility model belongs to the technical field of chemical filter material transportation, and in particular relates to a device for detecting the air tightness of a heat exchanger. Background Art

[0002] Heat exchanger is a device that transfers part of the heat of hot fluid to cold fluid, also known as heat exchanger. Heat exchangers are classified according to the heat transfer principle, including direct contact heat exchangers, compound heat exchangers, etc.; according to the structure, they are divided into floating head heat exchangers, fixed tube sheet heat exchangers, U-shaped tube sheet heat exchangers, plate heat exchangers, etc. Heat exchangers play an important role in chemical, petroleum, power, food and many other industrial production. In chemical production, heat exchangers can be used as heaters, coolers, condensers, evaporators and reboilers, etc., and are widely used.

[0003] The existing public patent number is CN209296256U, and the public name is a plate-type heat exchanger plate airtightness detection device, which solves the problem that the airtightness of the plate-type heat exchanger is difficult to fully detect. The utility model includes a base plate, and a sealing ring connected end to end is provided on the base plate. The sealing ring of the base plate cooperates with the sealing part of the plate-type heat exchanger plate to form a closed space; two docking ports I are provided on one side of the base plate, and two docking ports II are provided on the other side of the base plate; two cross-shaped isolation groove groups are provided on the base plate, and the two ends of the isolation groove group are connected to the sealing ring, and the isolation groove group is provided with a sealing strip, and the docking port I and the docking port II are respectively located in different isolation areas formed by the isolation groove group and the sealing ring; two air inlets and detection air ports are provided at the bottom of the base plate; one of the air inlets is connected to the air pump, and the other air inlet is provided with a plug, and the detection air port is transparent from top to bottom and is provided in the sealing ring, and the detection air port is connected to a pressure gauge; a fastening device is movably provided on the base plate.

[0004] However, the above-mentioned airtightness detection device seals the heat exchanger from both sides, which is prone to poor sealing effect, resulting in poor detection results and reducing the efficiency of detection. Utility Model Content

[0005] The utility model aims to provide a device for detecting the air tightness of a heat exchanger, aiming to solve the problems raised in the above-mentioned background technology.

[0006] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0007] A device for detecting the air tightness of a heat exchanger comprises: a detection table, a functional mechanism is installed on the upper surface of the detection table, a sealing mechanism is installed on the surface of the detection table and above the functional mechanism, a storage drawer is slidably connected to the surface of the front of the detection table, a touch control screen is installed on one side of the detection table, and the touch control screen is electrically connected to the sealing mechanism and the storage drawer respectively, multiple surfaces of the detection table are rotatably connected to protective doors, and multiple movable seats are installed at the bottom of the detection table.

[0008] As a preferred solution of the utility model, the functional mechanism includes a first mounting plate installed on the surface of the detection platform, a first electric cylinder is installed on the bottom of the first mounting plate, a first movable platform is installed on the surface of the piston rod of the first electric cylinder, a detection box is installed on the upper surface of the first movable platform, two second electric cylinders are installed on the surface of the first mounting plate, and the first movable platform is slidably connected to the surface of the second electric cylinder, a second mounting seat is installed on the surface of the first mounting plate, and a plurality of gas booster pumps are installed on the surface of the second mounting seat.

[0009] As a preferred solution of the utility model, a second electric cylinder is installed on the surface of the first mounting plate, a pressure relief valve is installed on the surface of the piston rod of the second electric cylinder, a temperature sensor is installed on the surface of the piston rod of the second electric cylinder and on one side of the pressure relief valve, and a first hole compatible with the second electric cylinder and the pressure relief valve is opened on the surface of the detection box.

[0010] As a preferred solution of the utility model, a first mounting seat is installed on the surface of the first mounting plate, a transmission threaded rod is installed on the surface of the first mounting seat, an internal threaded block is threadedly connected to the surface of the transmission threaded rod, and an air pressure sensor is installed on the surface of the internal threaded block.

[0011] As a preferred solution of the utility model, a servo motor is installed on the surface of the first mounting seat, and the output shaft of the servo motor is fixedly connected to one end of the transmission threaded rod, a first guide rod is installed on the surface of the first mounting seat and on both sides of the transmission threaded rod, and the internal thread block is slidably connected to the surface of the first guide rod.

[0012] As a preferred solution of the utility model, the sealing mechanism includes a second mounting plate installed on the detection table and located above the first mounting plate, a third electric cylinder for longitudinal adjustment is installed on the surface of the second mounting plate, a sealing cover plate is installed on the surface of the piston rod of the third electric cylinder, two second guide rods are installed on the upper surface of the sealing cover plate, and the second guide rods are slidably connected to the surface of the second mounting plate, and a plurality of second holes adapted to the gas booster pump are provided on the surface of the sealing cover plate.

[0013] Compared with the prior art, the beneficial effects of the utility model are:

[0014] This solution can place the heat exchanger through the functional mechanism, and can also place heat exchangers with different openings. The heat exchanger is then moved to the bottom of the sealing mechanism, at which time the sealing mechanism seals the heat exchanger. The functional mechanism then detects the heat exchanger and displays the test results through the touch control screen, at which time the staff can observe the test results. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] The accompanying drawings are used to provide a further understanding of the present invention and constitute a part of the specification. They are used together with the embodiments of the present invention to explain the present invention and do not constitute a limitation to the present invention.

[0016] In the attached picture:

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

[0018] Figure 2 It is a first-view schematic diagram of the functional mechanism and the sealing mechanism in the structure of the utility model;

[0019] Figure 3 It is a second perspective schematic diagram of the functional mechanism and the sealing mechanism in the structure of the utility model;

[0020] Figure 4 The utility model structure Figure 3 A magnified view of the local structure at center A.

[0021] In the figure: 1. test bench; 2. functional mechanism; 201. first mounting plate; 202. first electric cylinder; 203. first moving platform; 204. test box; 205. second electric cylinder; 206. pressure relief valve; 207. temperature sensor; 208. first mounting seat; 209. transmission threaded rod; 210. internal thread block; 211. air pressure sensor; 212. servo motor; 213. first guide rod; 214. second mounting seat; 215. gas booster pump; 3. sealing mechanism; 301. second mounting plate; 302. third electric cylinder; 303. sealing cover plate; 304. second guide rod; 4. storage drawer; 5. touch control screen; 6. protection door; 7. moving seat. DETAILED DESCRIPTION

[0022] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0023] Example

[0024] See also Figure 1-4 , the technical solution provided by this embodiment is as follows:

[0025] A device for detecting the air tightness of a heat exchanger comprises: a detection table 1, a functional mechanism 2 is installed on the upper surface of the detection table 1, a sealing mechanism 3 is installed on the surface of the detection table 1 and above the functional mechanism 2, a storage drawer 4 is slidably connected to the surface of the front of the detection table 1, a touch control screen 5 is installed on one side of the detection table 1, and the touch control screen 5 is electrically connected to the sealing mechanism 3 and the storage drawer 4 respectively, multiple surfaces of the detection table 1 are rotatably connected to protective doors 6, and multiple movable seats 7 are installed at the bottom of the detection table 1, the heat exchanger can be placed through the functional mechanism 2, and heat exchangers with different openings can be placed at the same time, and then the heat exchanger is moved to the bottom of the sealing mechanism 3, at which time the sealing mechanism 3 seals the heat exchanger, and then the functional mechanism 2 detects the heat exchanger, and the detection result is displayed through the touch control screen 5, and the staff can observe the detection result at this time.

[0026] Specifically, the functional mechanism 2 includes a first mounting plate 201 mounted on the surface of the detection platform 1, a first electric cylinder 202 is mounted on the bottom of the first mounting plate 201, a first moving platform 203 is mounted on the surface of the piston rod of the first electric cylinder 202, a detection box 204 is mounted on the upper surface of the first moving platform 203, two second electric cylinders 205 are mounted on the surface of the first mounting plate 201, and the first moving platform 203 is slidably connected to the surface of the second electric cylinder 205;

[0027] A second mounting seat 214 is mounted on the surface of the first mounting plate 201, a plurality of gas booster pumps 215 are mounted on the surface of the second mounting seat 214, a second electric cylinder 205 is mounted on the surface of the first mounting plate 201, a pressure relief valve 206 is mounted on the surface of the piston rod of the second electric cylinder 205, a temperature sensor 207 is mounted on the surface of the piston rod of the second electric cylinder 205 and on one side of the pressure relief valve 206, and a first hole adapted to the second electric cylinder 205 and the pressure relief valve 206 is opened on the surface of the detection box 204;

[0028] A first mounting seat 208 is mounted on the surface of the first mounting plate 201, a transmission threaded rod 209 is mounted on the surface of the first mounting seat 208, an internal thread block 210 is threadedly connected to the surface of the transmission threaded rod 209, an air pressure sensor 211 is mounted on the surface of the internal thread block 210, a servo motor 212 is mounted on the surface of the first mounting seat 208, and the output shaft of the servo motor 212 is fixedly connected to one end of the transmission threaded rod 209, first guide rods 213 are mounted on the surface of the first mounting seat 208 and on both sides of the transmission threaded rod 209, and the internal thread block 210 is slidably connected to the surface of the first guide rod 213;

[0029] The sealing mechanism 3 includes a second mounting plate 301 installed on the detection table 1 and located above the first mounting plate 201, a third electric cylinder 302 for longitudinal adjustment is installed on the surface of the second mounting plate 301, a sealing cover plate 303 is installed on the surface of the piston rod of the third electric cylinder 302, two second guide rods 304 are installed on the upper surface of the sealing cover plate 303, and the second guide rods 304 are slidably connected to the surface of the second mounting plate 301, and a plurality of second holes adapted to the gas booster pump 215 are provided on the surface of the sealing cover plate 303.

[0030] In a specific embodiment of the present invention, the heat exchanger is placed inside the detection box 204, and then the first electric cylinder 202 is started. The piston rod of the first electric cylinder 202 drives the first moving platform 203 to move on the surface of the second electric cylinder 205, and then the detection box 204 is moved to the bottom of the sealing cover plate 303. The third electric cylinder 302 is started and its piston rod drives the sealing cover plate 303 to fit with the detection box 204. The piston rod of the second electric cylinder 205 drives the pressure relief valve 206 and the temperature sensor 207 to extend to the inside of the detection box 204. At the same time, the gas booster pump 215 will extend to the inside of the first moving platform 203, and then the servo motor 212 is started. The output shaft of the servo motor 212 drives the The transmission threaded rod 209 rotates, and at this time, the internal thread block 210 drives the air pressure sensor 211 to move under the action of the thread on the surface of the transmission threaded rod 209. At this time, the gas booster pump 215 will pressurize the inside of the sealing cover plate 303 and the detection box 204, and the air pressure sensor 211 will detect the gas pressure inside the sealing cover plate 303 and the detection box 204. Then the gas booster pump 215 stops working, and the air pressure sensor 211 will record the gas pressure and transmit the value to the touch control screen 5. If the value becomes smaller, it means that the heat exchanger has a leak. After the detection is completed, the gas inside the sealing cover plate 303 and the detection box 204 is depressurized through the pressure relief valve 206.

[0031] Working principle: Place the heat exchanger inside the test box 204, the piston rod of the first electric cylinder 202 drives the first moving platform 203 to move on the surface of the second electric cylinder 205, then move the test box 204 to the bottom of the sealing cover plate 303, the third electric cylinder 302 starts its piston rod to drive the sealing cover plate 303 to fit with the test box 204, the piston rod of the second electric cylinder 205 drives the pressure relief valve 206 and the temperature sensor 207 to extend to the inside of the test box 204, and at the same time, the gas booster pump 215 will extend to the inside of the first moving platform 203, then start the servo motor 212, the output shaft of the servo motor 212 drives the transmission threaded rod 209 to rotate, at this time, the thread on the surface of the transmission threaded rod 209 Under the action of , the internal thread block 210 drives the air pressure sensor 211 to move, and the gas booster pump 215 will pressurize the inside of the sealing cover plate 303 and the detection box 204. At the same time, the air pressure sensor 211 will detect the gas pressure inside the sealing cover plate 303 and the detection box 204. Then the gas booster pump 215 stops working, and the air pressure sensor 211 will record the gas pressure and transmit the value to the touch control screen 5. If the value becomes smaller, it means that the heat exchanger has a leak. After the detection is completed, the pressure of the gas inside the sealing cover plate 303 and the detection box 204 is relieved through the pressure relief valve 206. At this time, the staff can observe the test results and store the items through the storage drawer 4.

[0032] Finally, it should be noted that the above description is only a preferred embodiment of the utility model and is not intended to limit the utility model. Although the utility model is described in detail with reference to the above embodiments, those skilled in the art can still modify the technical solutions recorded in the above embodiments or replace some of the technical features therein by equivalents. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the utility model shall be included in the protection scope of the utility model.

Claims

1. A device for detecting air tightness of a heat exchanger, characterized in that: include: A testing platform (1) is provided, wherein a functional mechanism (2) is installed on the upper surface of the testing platform (1), a sealing mechanism (3) is installed on the surface of the testing platform (1) and located above the functional mechanism (2), a storage drawer (4) is slidably connected to the front surface of the testing platform (1), a touch control screen (5) is installed on one side of the testing platform (1), and the touch control screen (5) is electrically connected to the sealing mechanism (3) and the storage drawer (4), multiple surfaces of the testing platform (1) are rotatably connected to protective doors (6), and multiple movable seats (7) are installed at the bottom of the testing platform (1).

2. A heat exchanger air tightness detection device according to claim 1, characterized in that: The functional mechanism (2) comprises a first mounting plate (201) mounted on the surface of the detection platform (1); a first electric cylinder (202) is mounted on the bottom of the first mounting plate (201); a first moving platform (203) is mounted on the surface of the piston rod of the first electric cylinder (202); a detection box (204) is mounted on the upper surface of the first moving platform (203); two second electric cylinders (205) are mounted on the surface of the first mounting plate (201), and the first moving platform (203) is slidably connected to the surface of the second electric cylinder (205); a second mounting seat (214) is mounted on the surface of the first mounting plate (201); and a plurality of gas booster pumps (215) are mounted on the surface of the second mounting seat (214).

3. The device for detecting air tightness of a heat exchanger according to claim 2, characterized in that: A second electric cylinder (205) is mounted on the surface of the first mounting plate (201), a pressure relief valve (206) is mounted on the surface of the piston rod of the second electric cylinder (205), a temperature sensor (207) is mounted on the surface of the piston rod of the second electric cylinder (205) and on one side of the pressure relief valve (206), and a first hole adapted to the second electric cylinder (205) and the pressure relief valve (206) is provided on the surface of the detection box (204).

4. The device for detecting air tightness of a heat exchanger according to claim 3, characterized in that: A first mounting seat (208) is mounted on the surface of the first mounting plate (201), a transmission threaded rod (209) is mounted on the surface of the first mounting seat (208), an internal threaded block (210) is threadedly connected to the surface of the transmission threaded rod (209), and an air pressure sensor (211) is mounted on the surface of the internal threaded block (210).

5. The device for detecting air tightness of a heat exchanger according to claim 4, characterized in that: A servo motor (212) is installed on the surface of the first mounting seat (208), and the output shaft of the servo motor (212) is fixedly connected to one end of the transmission threaded rod (209); first guide rods (213) are installed on the surface of the first mounting seat (208) and on both sides of the transmission threaded rod (209), and the internal thread block (210) is slidably connected to the surface of the first guide rod (213).

6. The device for detecting air tightness of a heat exchanger according to claim 5, characterized in that: The sealing mechanism (3) comprises a second mounting plate (301) mounted on the detection platform (1) and located above the first mounting plate (201); a third electric cylinder (302) for longitudinal adjustment is mounted on the surface of the second mounting plate (301); a sealing cover plate (303) is mounted on the surface of the piston rod of the third electric cylinder (302); two second guide rods (304) are mounted on the upper surface of the sealing cover plate (303), and the second guide rods (304) are slidably connected to the surface of the second mounting plate (301); and a plurality of second holes adapted to the gas booster pump (215) are provided on the surface of the sealing cover plate (303).

Images