Evaporator air tightness detection device

Abstract

The present invention relates to the technical field of air tightness detection, and discloses an evaporator air tightness detection device, including a detection box, a support plate is fixed on one side of the inner wall of the detection box, and the bottom end of the support plate is rotatably connected to a threaded rod, and the outer side of the threaded rod is threadedly connected to an internal thread mounting block. The present invention locks the position of the leak through a troubleshooting method, and the arc bottom position of the evaporator body is checked by a bubble observation method, and the high-pressure airflow pushes the movable seat to move toward the marking groove, so that the piston squeezes the marking liquid inside the marking groove and sprays it to the outside of the evaporator body through the injection pipe. At the same time, the movable seat contacts the control switch, so that the evaporator body stops rotating, which is convenient for the staff to check at the outer part of the evaporator body. When the bottom and the outer side of the evaporator body are not leaking, the leaking position can be locked at the top, and the entire device can lock the leaking position while realizing air tightness detection, and the detection and troubleshooting are integrated.

Description

Technical Field

[0001] The invention relates to the technical field of air tightness detection, and in particular to an evaporator air tightness detection device. Background Art

[0002] An evaporator is a device used to remove solvents from a solution. It is widely used in the chemical industry, food processing, pharmaceutical industry, and water treatment. During the evaporation process, the solution is heated to boiling point, turning the solvent (usually water) into steam, while solids or high-boiling-point substances remain in the evaporator. The steam is then condensed and collected, which can be recycled or discharged; the concentrated solution or solids left behind are treated as products or waste; there are many different designs and operating methods for evaporators. Common types include: single-effect evaporators, low-efficiency, multiple-effect evaporators, forced circulation evaporators, falling film evaporators, etc. The operating parameters of the evaporator, such as temperature, pressure, and flow, need to be optimized according to the specific application to achieve the best evaporation effect and energy efficiency; the evaporator air tightness test device is a test device used to ensure that the evaporator will not leak under the working pressure; this type of device is usually used in evaporator equipment in refrigeration, air conditioning systems, and chemical and pharmaceutical industries to ensure the safety and efficiency of the system; the basic principle of evaporator air tightness testing is to determine whether the evaporator has a leak by applying a pressure higher than or equal to the normal working pressure of the evaporator, and then monitoring the pressure changes over a certain period of time; Chinese patent authorization announcement number CN116952476B discloses an evaporator air tightness detection device and detection method. The evaporator air tightness detection device includes a detection base, the top of the detection base is fixedly connected to a detection platform, the top of the detection platform is provided with a groove, a lifting component is installed in the groove, the top of the lifting component is provided with an evaporator body, and both ends of the condensation pipeline in the evaporator body are located at the top of the evaporator body, and the rear side of the evaporator body is provided with a vertical plate. The present invention is provided with a detection component, when the evaporator body is tested for air tightness, the two first sealing boxes and the second sealing box can be respectively covered at the positions of two quick connectors. When a leak occurs at the quick connector position, the gas can enter the U-shaped tube through the connecting pipe, thereby pushing the liquid level in the U-shaped tube to rise, thereby providing a judgment basis for the detection personnel and improving the accuracy of the air tightness detection of the evaporator body.

[0003] The above-mentioned prior art solution has the following shortcomings: during use, the evaporator air tightness detection device determines whether there is a leak by allowing the leaking gas to enter the U-shaped tube through the connecting tube, thereby pushing up the liquid level in the U-shaped tube, thereby realizing air tightness detection. However, it is difficult for the device to lock the position of the evaporator leak, which makes it inconvenient for the staff to carry out subsequent maintenance. If the evaporator is completely immersed in water and one end of the evaporator is sealed, the external gas is used to observe the bubbling position, and the operation is also cumbersome, so there is room for improvement. Summary of the invention

[0004] The object of the present invention is to provide an evaporator air tightness detection device to solve the problem that the existing evaporator air tightness detection device mentioned in the above background technology can determine whether there is a leak but is difficult to lock the position.

[0005] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: an evaporator air tightness detection device, comprising a detection box, a support plate is fixed on one side of the inner wall of the detection box, and the bottom end of the support plate is rotatably connected to a threaded rod, the outer side of the threaded rod is threadedly connected to an internal threaded mounting block, a positioning mechanism is provided on one side of the internal threaded mounting block, the bottom end of the detection box is rotatably connected to a water tank, and an evaporator body is provided inside the water tank, an adjustment mechanism is provided at the bottom end of the inner wall of the detection box, and the threaded rod is driven to rotate indirectly by the adjustment mechanism, and openings are provided at both ends of the evaporator body, the top end of the detection box is rotatably connected to an electric telescopic rod B, and a high-pressure pump is fixed to the bottom end of the electric telescopic rod B, the air outlet of the high-pressure pump is connected to a connecting mechanism, and the connection between the high-pressure pump and the top opening of the evaporator body is achieved through the connecting mechanism, A reminder light is fixed to the top of the detection box, a single-chip microcomputer is fixed to one side of the top of the inner wall of the detection box, and a liquid crystal control panel is arranged on one side of the detection box; the positioning mechanism includes an air induced draft seat slidably connected to one side of the internal threaded mounting block, and a marking groove and a moving groove are respectively arranged on both sides of the interior of the air induced draft seat, a piston is slidably connected to the side of the marking groove close to the moving groove, a control switch is fixed to the side of the inner wall of the moving groove close to the piston, the interior of the moving groove is slidably connected to the moving seat, and a trapezoidal air receiving groove is arranged inside the moving seat, a connecting rod is fixed to the side of the moving seat close to the piston, and the other end of the connecting rod extends into the interior of the marking groove and is connected to the piston, an injection pipe is arranged inside the air induced draft seat, and one end of the injection pipe is connected to one side of the bottom end of the marking groove, and the other end of the injection pipe extends to a side close to the evaporator body.

[0006] Preferably, sliders are fixed at both ends of the movable seat, a slide groove is opened inside the air induced seat, and the slide grooves are slidably connected to the sliders, a spring C is fixed on one side of the slide groove away from the piston, and the other side of the spring C is connected to the slider.

[0007] Preferably, the inside of the sliding block is provided with a groove A, and the inside of the groove A is rotatably connected with a ball, the ball fits with the slide groove, and the ball and the groove are symmetrically arranged about the central axis of the air induced seat.

[0008] Preferably, a receiving groove is opened inside the internal thread mounting block, and a spring B is fixed on one side of the receiving groove, a support rod is fixed on the other side of the spring B, and the support rod extends to the outside of the internal thread mounting block, one end of the support rod is fixedly connected to one side of the air induced draft seat, and a pull rod is fixed to the top of the air induced draft seat.

[0009] Preferably, the adjustment mechanism includes a motor slot opened at the bottom end of the inner wall of the detection box, a reduction motor is arranged inside the motor slot, the output shaft of the reduction motor is fixedly connected to the bottom end of the water tank, a rotating seat is fixed to the bottom end of the water tank, a connecting slot is opened at the bottom end of the inner wall of the high-pressure pump, and a gear is rotatably connected to one side of the connecting slot, the gear is fixedly connected to the bottom end of the threaded rod, the connecting slot is rotatably connected to the rotating seat, teeth are fixed on the outer side of the rotating seat, and the teeth are meshed with the gear, a guide block is fixed on one side of the internal threaded mounting block, a guide slot is opened on one side of the interior of the detection box, and the guide slot is slidably connected to the guide block.

[0010] Preferably, the motor slot and the support seat are on the same vertical plane, the teeth occupy one sixth of the circumference of the rotating seat, and the cross-sectional size of the guide block is adapted to that of the guide slot.

[0011] Preferably, the connecting mechanism includes a ventilation pipe, a through groove is provided on one side of the ventilation pipe, an air pressure sensor is fixed on one side of the ventilation pipe, the through groove is connected with the interior of the air pressure sensor, a mounting groove is provided inside the ventilation pipe, and a spring A is fixed to the top of the mounting groove, a connecting plate is fixed to the bottom end of the spring A, and a sleeve is fixed on the inner side of the connecting plate, a through hole A is provided inside the connecting plate, a through hole B is provided on the outer surface of the bottom of the ventilation pipe, a screw hole is provided at the connecting opening end of the evaporator body, and bolts are threadedly connected to the inside of the screw hole, and the bolts pass through the inside of through hole A and through hole B.

[0012] Preferably, a support sleeve is fixed inside the connecting opening of the evaporator body, and when the screw hole is threadedly connected with the bolt, the bottom end of the sleeve fits with the support sleeve, and the inner diameter of the sleeve is equal to the outer diameter of the support sleeve.

[0013] Preferably, a support seat is fixed inside the water tank, and a sealing block is fixed inside the support seat, the size of the sealing block matches the opening at the bottom end of the evaporator body, a positioning rod is fixed inside the support seat, the opening at the bottom end of the evaporator body is provided with a positioning hole, and the cross-sectional size of the positioning hole is equal to the cross-sectional size of the positioning rod.

[0014] Preferably, an electric telescopic rod A is fixed to the inner wall of the detection box, and a clamping seat is fixed to the telescopic end of the electric telescopic rod A on the side opposite to the threaded rod, and a clamping groove is provided on the side of the clamping seat close to the evaporator body and the side of the induced draft seat close to the evaporator body, and the top view of the clamping groove is trapezoidal, and a groove B is provided inside the induced draft seat and the clamping seat, and a lubricating ball is rotatably connected to the inside of the groove B.

[0015] Compared with the prior art, the present invention has the following beneficial effects: The air pressure sensor detects the air pressure change inside the evaporator body, and transmits the experimental data to the single-chip computer for analysis in real time. The color of the reminder light is used to prompt the staff to proceed to the next operation. The location of the leak is locked through the troubleshooting method. The arc bottom position of the evaporator body is checked by the bubble observation method. The high-pressure airflow pushes the moving seat to move toward the marking groove, so that the piston squeezes the marking liquid inside the marking groove and sprays it to the outside of the evaporator body through the injection pipe. At the same time, the moving seat contacts the control switch, so that the evaporator body stops rotating, which is convenient for the staff to check the outside of the evaporator body. When there is no air leakage at the bottom and outside of the evaporator body, the leak position can be locked at the top. The entire device can lock the leak position while realizing air tightness detection. The integrated design of detection and troubleshooting is convenient for the staff to carry out later maintenance and improve the practicality of the entire device. The clamping seat and the electric telescopic rod A are used to support one side of the evaporator body. In combination with the spring B, the evaporator bodies of different diameters can be tested, so that the electric telescopic rod A and the draft seat are always connected to the outer side of the evaporator body, thereby improving the flexibility and application range of the entire device. The lubricating ball is used to improve the smoothness of the evaporator body during rotation, and reduce the friction generated when the draft seat and the electric telescopic rod A contact the evaporator body. Through the clamping seat and the draft seat, in conjunction with the spring B and the electric telescopic rod A, the evaporator bodies of different diameters can be supported to improve the stability during rotation. The lubricating ball can improve the smoothness of the evaporator body rotation, thereby achieving airtightness testing of evaporator bodies of different specifications and improving overall flexibility.

[0016] The bottom of the evaporator body is sealed by the gravity of the evaporator body and the sealing action of the sealing block. The connection between the sleeve and the support sleeve is coordinated to block the connection between the evaporator body and the ventilation pipe through the sleeve to improve the sealing of the evaporator body after it is fixed, ensure the smooth progress of the airtightness experiment, improve the accuracy of the experimental data, and facilitate the rotation of the evaporator body through the setting of the positioning rod. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0018] Figure 1 It is a schematic diagram of the three-dimensional structure of the present invention; Figure 2 It is a schematic diagram of the three-dimensional structure of the positioning mechanism distribution of the present invention; Figure 3 It is a schematic diagram of the split three-dimensional structure of the positioning mechanism of the present invention; Figure 4 It is a schematic diagram of the three-dimensional structure of the adjustment mechanism of the present invention; Figure 5 It is a schematic diagram of the three-dimensional structure of the connecting mechanism of the present invention; Figure 6 It is a schematic diagram of the three-dimensional structure of the ventilation pipe distribution of the present invention; Figure 7 It is a schematic diagram of the three-dimensional structure of the water tank of the present invention; Figure 8 It is a schematic diagram of the electrical relationship structure of the present invention.

[0019] Explanation of reference numerals in the figure: 1. detection box; 2. high pressure pump; 3. connecting mechanism; 301. ventilation pipe; 302. sleeve; 303. spring A; 304. connecting plate; 305. through hole A; 306. through hole B; 307. screw hole; 308. support sleeve; 309. bolt; 4. positioning rod; 5. threaded rod; 6. internal thread mounting block; 7. positioning mechanism; 701. spring B; 702. support rod; 703. air induction seat; 704. piston; 705. control switch; 706. slide groove; 707. slider; 708. moving seat; 709. 09. Injection pipe; 710. Connecting rod; 711. Ball; 712. Spring C; 713. Trapezoidal air receiving slot; 8. Water tank; 9. Evaporator body; 10. Clamping seat; 11. Electric telescopic rod A; 12. LCD control panel; 13. Air pressure sensor; 14. Single chip microcomputer; 15. Warning light; 16. Adjustment mechanism; 1601. Guide block; 1602. Guide groove; 1603. Gear; 1604. Teeth; 1605. Rotating seat; 1606. Reducer motor; 17. Sealing block; 18. Electric telescopic rod B; 19. Support seat. DETAILED DESCRIPTION

[0020] The following will be combined with the drawings in the embodiments of the invention to clearly and completely describe the technical solutions in the embodiments of the invention. Obviously, the described embodiments are only part of the embodiments of the invention, not all of the embodiments. Based on the embodiments of the invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the invention.

[0021] Embodiment 1 In order to solve the problem that the existing evaporator air tightness detection device in the prior art can determine whether there is a leak, but it is difficult to lock the position, the following solution is disclosed, specifically as follows Figure 1 , Figure 2 , Figure 3 and Figure 4As shown: an evaporator air tightness detection device comprises a detection box 1, a support plate is fixed on one side of the inner wall of the detection box 1, and the bottom end of the support plate is rotatably connected to a threaded rod 5, the outer side of the threaded rod 5 is threadedly connected to an internal threaded mounting block 6, a positioning mechanism 7 is arranged on one side of the internal threaded mounting block 6, the bottom end of the detection box 1 is rotatably connected to a water tank 8, and an evaporator body 9 is arranged inside the water tank 8, an adjustment mechanism 16 is arranged at the bottom end of the inner wall of the detection box 1, and the threaded rod 5 is driven to rotate indirectly by the adjustment mechanism 16, and openings are arranged at both ends of the evaporator body 9, an electric telescopic rod B18 is rotatably connected to the top of the detection box 1, and a high-pressure pump 2 is fixed to the bottom end of the electric telescopic rod B18, and the air outlet of the high-pressure pump 2 is connected to a connecting mechanism 3, and the connection between the high-pressure pump 2 and the top opening of the evaporator body 9 is realized by the connecting mechanism 3, a reminder light 15 is fixed on the top of the detection box 1, and one side of the top end of the inner wall of the detection box 1 A single-chip microcomputer 14 is fixed, and a liquid crystal control panel 12 is arranged on one side of the detection box 1; the positioning mechanism 7 includes an air induction seat 703 slidably connected to one side of the internal thread mounting block 6, and a marking groove and a moving groove are arranged on both sides of the inside of the air induction seat 703 respectively, and a piston 704 is slidably connected to the side of the marking groove close to the moving groove, and a control switch 705 is fixed to the side of the inner wall of the moving groove close to the piston 704, the inside of the moving groove is slidably connected to a moving seat 708, and a trapezoidal air receiving groove 713 is arranged inside the moving seat 708, a connecting rod 710 is fixed to the side of the moving seat 708 close to the piston 704, and the other end of the connecting rod 710 extends into the inside of the marking groove and is connected to the piston 704, and an injection pipe 709 is arranged inside the air induction seat 703, and one end of the injection pipe 709 is connected to one side of the bottom end of the marking groove, and the other end of the injection pipe 709 extends to a side close to the evaporator body 9.

[0022] Slide blocks 707 are fixed at both ends of the movable seat 708, a slide groove 706 is provided inside the draft seat 703, and the slide groove 706 is slidably connected to the slide block 707, a spring C712 is fixed on the side of the slide groove 706 away from the piston 704, and the other side of the spring C712 is connected to the slide block 707; a groove A is provided inside the slide block 707, and a ball 711 is rotatably connected inside the groove A, and the ball 711 is fitted with the slide groove 706, and the ball 711 and the groove are symmetrically arranged about the central axis of the draft seat 703; the internal threaded mounting block 6 is provided inside There is a receiving groove, and a spring B701 is fixed on one side of the receiving groove, a support rod 702 is fixed on the other side of the spring B701, and the support rod 702 extends to the outside of the internal thread mounting block 6, one end of the support rod 702 is fixedly connected to one side of the air induction seat 703, and a pull rod is fixed to the top of the air induction seat 703; the adjusting mechanism 16 includes a motor groove opened at the bottom end of the inner wall of the detection box 1, a reduction motor 1606 is arranged inside the motor groove, the output shaft of the reduction motor 1606 is fixedly connected to the bottom end of the water tank 8, a rotating seat 1605 is fixed to the bottom end of the water tank 8, and the bottom end of the inner wall of the high-pressure pump 2 is opened A connecting groove is provided, and a gear 1603 is rotatably connected to one side of the connecting groove, the gear 1603 is fixedly connected to the bottom end of the threaded rod 5, the connecting groove is rotatably connected to the rotating seat 1605, a tooth 1604 is fixed to the outer side of the rotating seat 1605, and the tooth 1604 is meshed with the gear 1603, a guide block 1601 is fixed to one side of the internal thread mounting block 6, a guide groove 1602 is opened on one side of the inside of the detection box 1, and the guide groove 1602 is slidably connected to the guide block 1601; the motor slot and the support seat 19 are on the same vertical plane, and the tooth 1604 occupies the rotating seat 1605. One sixth of the circumference, the cross-sectional size of the guide block 1601 is adapted to the guide groove 1602; an electric telescopic rod A11 is fixed to the inner wall of the detection box 1, and the telescopic end of the electric telescopic rod A11 is fixed with a clamping seat 10 on the side opposite to the threaded rod 5, and the side of the clamping seat 10 close to the evaporator body 9 and the side of the induced draft seat 703 close to the evaporator body 9 are both provided with clamping grooves, and the top-view cross-sections of the clamping grooves are both arranged in a trapezoidal shape, and the interior of the induced draft seat 703 and the interior of the clamping seat 10 are both provided with grooves B, and the interior of the grooves B are rotatably connected with lubricating balls.

[0023] In this embodiment, when it is necessary to detect the evaporator body 9, after the evaporator body 9 is fixed, high-pressure gas is transported to the inside of the evaporator body 9 through the high-pressure pump 2 and the connecting mechanism 3, and the air pressure change inside the connecting mechanism 3 is detected in real time by the air pressure sensor 13, and the relevant data is transmitted to the single-chip microcomputer 14 in real time for collection. When the set time is reached, the single-chip microcomputer 14 performs analysis, and the reminder light 15 is activated according to the internal air pressure change of the evaporator body 9. When the evaporator body 9 passes the air tightness test, the green light is turned on to remind the staff to replace the new evaporator body 9 for air tightness detection. If the internal air pressure of the evaporator body 9 exceeds When the setting value is reached, the single chip microcomputer 14 controls the reminder light 15 to light up in red, reminding the staff to move to the front of the detection box 1 for observation. Since the bottom end of the evaporator body 9 fits with the top end of the support seat, after injecting water into the water tank 8, the arc-shaped bottom of the evaporator body 9 is immersed in water. If bubbles appear in the water, it is concluded that there is a leak at the bottom of the evaporator body 9. If no leak is found at the bottom of the evaporator body 9, the staff starts the reduction motor 1606 through the LCD control panel 12, so that the reduction motor 1606 drives the evaporator body 9 to rotate slowly as a whole. During the rotation of the water tank 8, its bottom drives the rotating seat 1605 to rotate, so that the rotating seat 160 The teeth 1604 on the outside of the evaporator body 9 are indirectly meshed with the gear 1603, so that the gear 1603 is indirectly rotated. Under the action of the threaded connection between the internal thread mounting block 6 and the threaded rod 5, the internal thread mounting block 6 is indirectly rotated and raised, so that the internal thread mounting block 6 drives the positioning mechanism 7 to rise slowly as a whole, and the internal thread mounting block 6 drives the positioning mechanism 7 to rise slowly when the evaporator body 9 rotates one or more circles, so that the whole detection is more comprehensive, so as to detect the outside of the evaporator body 9. When the outside of the evaporator body 9 leaks, the high-pressure airflow is blown to the movable seat 708 through the trapezoidal air receiving slot, and the ball 7 With the cooperation of 11, the movable seat 708 moves quickly toward the side of the piston 704 as a whole, so that the marking liquid inside the marking groove is quickly sprayed onto the outer wall of the evaporator body 9 through the injection pipe 709. When one side of the induced draft seat 703 contacts the control switch 705, the reduction motor 1606 is turned off, so that the evaporator body 9 stops rotating as a whole, which is convenient for the staff to check the specific location of the leak. If there is no leak on the outside of the evaporator body 9, the leak is at the top, and the approximate location of the leak is locked by the discharge valve, which is convenient for the staff to carry out subsequent maintenance and rectification of the evaporator body 9 as a whole, thereby improving the practicality of the entire device.

[0024] Embodiment 2 This embodiment is different from the first embodiment. The sealing performance of the evaporator body 9 after being connected to the detection device is enhanced by the cooperation between the connection mechanism 3 and the sealing block 17. Figure 1 , Figure 5 , Figure 6 and Figure 7As shown: The connecting mechanism 3 includes a ventilation pipe 301, a through groove is provided on one side of the ventilation pipe 301, an air pressure sensor 13 is fixed on one side of the ventilation pipe 301, the through groove is connected to the inside of the air pressure sensor 13, a mounting groove is provided inside the ventilation pipe 301, and a spring A303 is fixed to the top of the mounting groove, a connecting plate 304 is fixed to the bottom end of the spring A303, a sleeve 302 is fixed to the inner side of the connecting plate 304, a through hole A305 is provided inside the connecting plate 304, a through hole B306 is provided on the outer surface of the bottom of the ventilation pipe 301, a screw hole 307 is provided at the connecting opening end of the evaporator body 9, and a bolt 309 is threadedly connected inside the screw hole 307 , the bolts 309 all penetrate the interior of the through hole A305 and the through hole B306; a support sleeve 308 is fixed inside the connecting opening of the evaporator main body 9, and when the screw hole 307 is threadedly connected with the bolt 309, the bottom end of the sleeve 302 fits with the support sleeve 308, and the inner diameter of the sleeve 302 is equal to the outer diameter of the support sleeve 308; a support seat 19 is fixed inside the water tank 8, and a sealing block 17 is fixed inside the support seat 19, and the size of the sealing block 17 matches the opening at the bottom end of the evaporator main body 9, a positioning rod 4 is fixed inside the support seat 19, and the opening at the bottom end of the evaporator main body 9 is provided with a positioning hole, and the cross-sectional size of the positioning hole is equal to the cross-sectional size of the positioning rod 4.

[0025] In this embodiment, when the evaporator main body 9 needs to be installed for inspection, after the stop valve at the bottom of the evaporator main body 9 is closed, the opening at the bottom of the evaporator main body 9 is engaged and connected with the sealing block 17 for sealing, and at the same time, the positioning hole of the bottom opening is engaged and connected with the positioning rod 4. Under the action of the self-weight of the evaporator main body 9, the bottom opening of the evaporator main body 9 fits with the inside of the support seat 19 to achieve the bottom sealing effect, and at the same time, the electric telescopic rod B18 is started to make the high-pressure pump 2 and the connecting mechanism 3 drop as a whole, so that the top opening of the evaporator main body 9 fits with the ventilation pipe 301, and the connection between the evaporator main body 9 and the ventilation pipe 301 is reinforced by rotating the bolt 309. At the same time, the inner wall of the sleeve 302 fits with the outer side of the support sleeve 308, so that the sleeve 302 blocks the connection between the evaporator main body 9 and the ventilation pipe 301, thereby improving the sealing effect, ensuring the smooth progress of the airtightness experiment, and improving the accuracy of the experimental data.

[0026] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art 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 appended claims and their equivalents.

Claims

1. An evaporator air tightness detection device, comprising a detection box (1), characterized in that: A support plate is fixed to one side of the inner wall of the detection box (1), and the bottom end of the support plate is rotatably connected to a threaded rod (5), the outer side of the threaded rod (5) is threadably connected to an internal threaded mounting block (6), and a positioning mechanism (7) is provided on one side of the internal threaded mounting block (6). The bottom end of the interior of the detection box (1) is rotatably connected to a water tank (8), and an evaporator body (9) is provided inside the water tank (8). An adjustment mechanism (16) is provided at the bottom end of the inner wall of the detection box (1), and the threaded rod (5) is driven to rotate indirectly by the adjustment mechanism (16), and the evaporator body (9) is arranged ) are provided with openings at both ends, the top end of the interior of the detection box (1) is rotatably connected to an electric telescopic rod B (18), and the bottom end of the electric telescopic rod B (18) is fixed with a high-pressure pump (2), the air outlet of the high-pressure pump (2) is connected to a connecting mechanism (3), and the connection between the high-pressure pump (2) and the top opening of the evaporator body (9) is achieved through the connecting mechanism (3), a reminder light (15) is fixed at the top of the detection box (1), a single-chip computer (14) is fixed on one side of the top of the inner wall of the detection box (1), and a liquid crystal control panel (12) is provided on one side of the detection box (1); The positioning mechanism (7) comprises an air induction seat (703) slidably connected to one side of the internal thread mounting block (6); a marking groove and a moving groove are respectively arranged on two sides inside the air induction seat (703); a piston (704) is slidably connected to the side of the marking groove close to the moving groove; a control switch (705) is fixed to the side of the inner wall of the moving groove close to the piston (704); a moving seat (708) is slidably connected to the inside of the moving groove; a trapezoidal air receiving groove (713) is arranged inside the moving seat (708); a connecting rod (710) is fixed to the side of the moving seat (708) close to the piston (704); the other end of the connecting rod (710) extends into the marking groove and is connected to the piston (704); an injection pipe (709) is arranged inside the air induction seat (703); one end of the injection pipe (709) is connected to one side of the bottom end of the marking groove; the other end of the injection pipe (709) extends to a side close to the evaporator body (9).

2. The evaporator air tightness detection device according to claim 1, characterized in that: Slide blocks (707) are fixed to both ends of the movable seat (708); a slide groove (706) is provided inside the air induction seat (703); and the slide groove (706) is slidably connected to the slide block (707); a spring C (712) is fixed to one side of the slide groove (706) away from the piston (704); and the other side of the spring C (712) is connected to the slide block (707).

3. The evaporator air tightness detection device according to claim 2, characterized in that: The sliding blocks (707) are each provided with a groove A inside, and a ball (711) is rotatably connected inside the groove A. The ball (711) is fitted with the slide groove (706), and the ball (711) and the groove are symmetrically arranged about the central axis of the air induction seat (703).

4. The evaporator air tightness detection device according to claim 1, characterized in that: The internal thread mounting block (6) is provided with a receiving groove, and a spring B (701) is fixed on one side of the receiving groove, and a support rod (702) is fixed on the other side of the spring B (701), and the support rod (702) extends to the outside of the internal thread mounting block (6), and one end of the support rod (702) is fixedly connected to one side of the air induction seat (703), and a pull rod is fixed to the top end of the air induction seat (703).

5. The evaporator air tightness detection device according to claim 1, characterized in that: The regulating mechanism (16) comprises a motor slot provided at the bottom end of the inner wall of the detection box (1), a reduction motor (1606) being arranged inside the motor slot, an output shaft of the reduction motor (1606) being fixedly connected to the bottom end of the water tank (8), a rotating seat (1605) being fixed to the bottom end of the water tank (8), a connecting slot being provided at the bottom end of the inner wall of the high-pressure pump (2), a gear (1603) being rotatably connected to one side of the inner wall of the connecting slot, the gear (1603) being connected to the screw The bottom end of the threaded rod (5) is fixedly connected, the connecting groove is rotatably connected to the rotating seat (1605), the outer side of the rotating seat (1605) is fixed with teeth (1604), and the teeth (1604) are meshingly connected with the gear (1603), one side of the internal thread mounting block (6) is fixed with a guide block (1601), and one side of the interior of the detection box (1) is provided with a guide groove (1602), and the guide groove (1602) is slidably connected to the guide block (1601).

6. The evaporator air tightness detection device according to claim 5, characterized in that: The motor slot and the support seat (19) are on the same vertical plane, the teeth (1604) occupy one sixth of the circumference of the rotating seat (1605), and the cross-sectional size of the guide block (1601) and the guide slot (1602) are adapted.

7. The evaporator air tightness detection device according to claim 1, characterized in that: The connecting mechanism (3) comprises a ventilation pipe (301), a through groove is provided on one side of the ventilation pipe (301), an air pressure sensor (13) is fixed on one side of the ventilation pipe (301), the through groove is connected to the inside of the air pressure sensor (13), a mounting groove is provided inside the ventilation pipe (301), a spring A (303) is fixed to the top of the mounting groove, a connecting plate (304) is fixed to the bottom end of the spring A (303), a sleeve (302) is fixed to the inner side of the connecting plate (304), a through hole A (305) is provided inside the connecting plate (304), a through hole B (306) is provided on the outer surface of the bottom of the ventilation pipe (301), a screw hole (307) is provided at the connection opening end of the evaporator body (9), a bolt (309) is threadedly connected to the inside of the screw hole (307), and the bolt (309) passes through the inside of the through hole A (305) and the through hole B (306).

8. The evaporator air tightness detection device according to claim 7, characterized in that: A support sleeve (308) is fixed inside the connection opening of the evaporator body (9); when the screw hole (307) is threadedly connected to the bolt (309), the bottom end of the sleeve (302) fits into the support sleeve (308); the inner diameter of the sleeve (302) is equal to the outer diameter of the support sleeve (308).

9. The evaporator air tightness detection device according to claim 1, characterized in that: A support seat (19) is fixed inside the water tank (8), and a sealing block (17) is fixed inside the support seat (19), the size of the sealing block (17) matches the opening at the bottom end of the evaporator body (9), a positioning rod (4) is fixed inside the support seat (19), and a positioning hole is provided at the opening at the bottom end of the evaporator body (9), and the cross-sectional size of the positioning hole is equal to the cross-sectional size of the positioning rod (4).

10. The evaporator air tightness detection device according to claim 9, characterized in that: An electric telescopic rod A (11) is fixed to the inner wall of the detection box (1), and a clamping seat (10) is fixed to the telescopic end of the electric telescopic rod A (11) on the side opposite to the threaded rod (5), and a clamping groove is provided on the side of the clamping seat (10) close to the evaporator body (9) and the side of the induced draft seat (703) close to the evaporator body (9), and the top view of the clamping groove is arranged in a trapezoidal shape, and a groove B is provided inside the induced draft seat (703) and the clamping seat (10), and a lubricating ball is rotatably connected inside the groove B.

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