Maintenance and leak detection equipment for oil and gas production heat exchanger

Abstract

The utility model provides an oil gas production heat exchanger maintenance leak detection device, which relates to the technical field of heat exchanger leak detection and comprises a support plate, and a water storage tank is fixed on one side surface of the support plate. According to the oil and gas production heat exchanger maintenance leakage detection equipment, a transmission frame is driven to rotate through a motor, a moving plate can move downwards through a transmission rod, connecting rods at the two ends of a connecting column can move downwards at the same time through cooperation between the moving plate and the connecting column, and two clamping rods are driven to get close to each other through the connecting rods; the position of the heat exchanger is fixed, the stability of the position of the heat exchanger when the heat exchanger is immersed into the water storage tank is improved, a threaded rod rotates in a transmission frame through a rocker, the position of a sliding block in a moving groove is adjusted through the threaded rod, and the descending height of a moving plate can be adjusted through a transmission rod; water in the water tank is prevented from overflowing the ventilation port when the heat exchanger model is replaced, and the water tank can be adjusted according to the area of different types of heat exchangers immersed in the water tank.

Description

Technical Field

[0001] The utility model relates to a heat exchanger leak detection device, specifically a leak detection device for maintaining oil and gas production heat exchangers, belonging to the technical field of heat exchanger leak 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, etc. In chemical production, heat exchangers can be used as heaters, coolers, condensers, evaporators, reboilers, etc. In order to improve the production efficiency of heat exchangers, it is necessary to detect the airtightness of heat exchangers.

[0003] A heat exchanger leak detection device disclosed in the Chinese Patent Application Publication Specification CN207036361U. The structure of this heat exchanger leak detection device is simple and reasonable. Multiple heat exchangers can be placed on a moving mechanism, and the moving mechanism moves the heat exchanger into a water storage tank for leak detection at the same time. By replacing manual handling with machinery, the labor intensity of workers is greatly reduced. Operators can intuitively and quickly find heat exchangers with quality problems, improving the detection efficiency.

[0004] Although the above patent solution can detect leaks in heat exchangers, the heat exchanger leak detection device in the above patent is not convenient for fixing both ends of the heat exchanger during detection, resulting in the heat exchanger being prone to shaking when immersed in the water storage tank, causing water in the heat exchanger to overflow, affecting the detection effect of the heat exchanger, and unable to adjust according to the immersion area of different types of heat exchangers in the water tank; therefore, a leak detection device for maintaining oil and gas production heat exchangers is proposed here. Content of the Utility Model

[0005] The utility model proposes a leak detection device for maintaining oil and gas production heat exchangers to solve the problems in the prior art that it is not convenient to fix both ends of the heat exchanger during detection and unable to adjust according to the immersion area of different heat exchangers in the water tank.

[0006] The utility model is realized through the following technical solutions: A leak detection device for maintaining oil and gas production heat exchangers includes a support plate. One side surface of the support plate is fixedly provided with a water storage tank. Above the water storage tank, there is a lifting plate, and between the lifting plate and the support plate, there is a lifting mechanism for driving the lifting plate to move up and down.

[0007] Furthermore, the lifting mechanism includes a support rod fixed on the top surface of the support plate. The bottom surface of the support rod is fixedly provided with a hydraulic rod, and the bottom end of the hydraulic rod is fixedly provided with a connecting frame sleeved on the outer surface of the lifting plate.

[0008] Furthermore, the lifting mechanism also includes a chute opened on one side surface of the support plate. One side surface of the connecting frame is fixedly provided with a connecting block sliding inside the chute.

[0009] Two groups of positioning frames are fixed to the bottom surface of the lifting plate. The bottom end of each group of positioning frames is slidably sleeved with a clamping rod for positioning the heat exchanger. A power mechanism for driving the clamping rod to move is arranged on the bottom surface of the lifting plate. The power mechanism includes a connecting rod rotatably connected to one side surface of the clamping rod. The bottom end of the connecting rod is rotatably sleeved with a connecting column. A moving plate is fixed to the middle section of the connecting column. The top end of the moving plate is rotatably connected to a transmission rod. The top end of the transmission rod is connected to a transmission frame. An adjusting mechanism for adjusting the moving distance of the transmission rod is arranged inside the transmission frame.

[0010] Further, the power mechanism includes a motor fixed to the bottom surface of the lifting plate, and the output end of the motor is fixed to one end of the transmission frame.

[0011] Further, the power mechanism further includes a limiting frame fixed to the bottom surface of the lifting plate and a limiting groove opened on one side surface of the moving plate. The bottom end of the limiting frame is slidably connected inside the limiting groove.

[0012] Further, lifting rods are fixedly sleeved at both ends of the connecting column, and the top end of each lifting rod is slidably connected inside the lifting plate.

[0013] Further, the adjusting mechanism includes a moving groove opened inside the transmission frame. A threaded rod is rotatably sleeved inside the moving groove. A slider slidable inside the moving groove is threadedly connected to the periphery of the threaded rod. One side surface of the slider is rotatably connected to the top end of the transmission rod. One end of the threaded rod penetrates through the transmission frame and is fixedly sleeved with a rocker.

[0014] The utility model provides an oil and gas production heat exchanger maintenance and leak detection device, and the beneficial effects thereof are as follows:

[0015] 1. For this oil and gas production heat exchanger maintenance and leak detection device, the transmission frame is rotated by the motor, and the moving plate can be moved downward through the transmission rod. Through the cooperation between the moving plate and the connecting column, the connecting rods at both ends of the connecting column can be moved downward simultaneously, and the two clamping rods are driven by the connecting rods to approach each other, so as to fix the position of the heat exchanger, and improve the stability of the position of the heat exchanger when it is immersed in the water storage tank.

[0016] 2. For this oil and gas production heat exchanger maintenance and leak detection device, the rocker is rotated by an external force, and the threaded rod is rotated inside the transmission frame through the rocker. By adjusting the position of the slider inside the moving groove through the threaded rod, the descending height of the moving plate can be adjusted through the transmission rod, so as to avoid the water in the water tank overflowing the air exchange port when replacing the heat exchanger model, and can be adjusted according to the immersion area of different types of heat exchangers in the water tank. Description of the Drawings

[0017] Figure 1 It is a three-dimensional structural schematic diagram of the lifting plate in the utility model;

[0018] Figure 2 This is a three-dimensional structural schematic diagram of the lifting mechanism in the present utility model;

[0019] Figure 3 This is a three-dimensional structural schematic diagram of the power mechanism in the present utility model;

[0020] Figure 4 This is a three-dimensional structural schematic diagram of the adjusting mechanism in the present utility model.

[0021] Description of the reference numerals in the drawings

[0022] 1. Support plate; 2. Water storage tank; 3. Lifting plate;

[0023] 4. Lifting mechanism; 41. Support rod; 42. Hydraulic rod; 43. Connecting frame; 44. Sliding groove; 45. Connecting block;

[0024] 5. Positioning frame; 6. Clamping rod;

[0025] 7. Power mechanism; 71. Motor; 72. Transmission frame; 73. Transmission rod; 74. Moving plate; 75. Connecting column; 76. Connecting rod; 77. Limiting groove; 78. Limiting frame; 79. Lifting rod;

[0026] 8. Adjusting mechanism; 81. Moving groove; 82. Threaded rod; 83. Slider; 84. Rocker. Detailed implementation manners

[0027] 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 of 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.

[0028] Please refer to Figures 1 to 4 , the embodiment of the present utility model provides an oil and gas production heat exchanger maintenance and leak detection device, including a support plate 1, a water storage tank 2 is fixed on one side surface of the support plate 1, a lifting plate 3 is arranged above the water storage tank 2, and a lifting mechanism 4 for driving the lifting plate 3 to move up and down is arranged between the lifting plate 3 and the support plate 1.

[0029] In the above solution, the fixed heat exchanger can be immersed in the water tank through the lifting mechanism 4.

[0030] Please pay special attention to Figure 1 and Figure 2, the lifting mechanism 4 includes a support rod 41 fixed to the top surface of the support plate 1. A hydraulic rod 42 is fixed to the bottom surface of the support rod 41, and a connecting frame 43 sleeved on the outer surface of the lifting plate 3 is fixed to the bottom end of the hydraulic rod 42.

[0031] The lifting mechanism 4 further includes a sliding groove 44 opened on one side surface of the support plate 1, and a connecting block 45 slidably arranged inside the sliding groove 44 is fixed to one side surface of the connecting frame 43.

[0032] In the above solution, when the hydraulic rod 42 is started, the lifting plate 3 can be moved downward through the hydraulic rod 42 and the connecting frame 43, which is convenient for immersing the surface of the heat exchanger into the water tank. When the surface of the heat exchanger is immersed in the water tank, air is blown into the air exchange port through an external air blowing device, and the heat exchanger is leak-tested by observing whether there are bubbles generated inside the water tank.

[0033] Please refer particularly to Figure 3 and Figure 4 , two groups of positioning frames 5 are fixed to the bottom surface of the lifting plate 3. A clamping rod 6 for positioning the heat exchanger is slidably sleeved at the bottom end of each group of positioning frames 5. A power mechanism 7 for driving the clamping rod 6 to move is arranged on the bottom surface of the lifting plate 3. The power mechanism 7 includes a connecting rod 76 rotatably connected to one side surface of the clamping rod 6. A connecting column 75 is rotatably sleeved at the bottom end of the connecting rod 76. A moving plate 74 is fixed to the middle section of the connecting column 75. A transmission rod 73 is rotatably connected to the top end of the moving plate 74. The top end of the transmission rod 73 is connected to a transmission frame 72, and an adjusting mechanism 8 for adjusting the moving distance of the transmission rod 73 is arranged inside the transmission frame 72.

[0034] In the above solution, the two ends of the heat exchanger are fixed by the two groups of clamping rods 6, which improves the position stability of the heat exchanger when it is immersed in water.

[0035] Please refer particularly to Figure 3 , the power mechanism 7 includes a motor 71 fixed to the bottom surface of the lifting plate 3, and the output end of the motor 71 is fixed to one end of the transmission frame 72.

[0036] The power mechanism 7 further includes a limiting frame 78 fixed to the bottom surface of the lifting plate 3 and a limiting groove 77 opened on one side surface of the moving plate 74. The bottom end of the limiting frame 78 is slidably connected inside the limiting groove 77.

[0037] Lifting rods 79 are fixedly sleeved at both ends of the connecting column 75, and the top end of each lifting rod 79 is slidably connected inside the lifting plate 3.

[0038] In the above solution, the transmission frame 72 is rotated by the motor 71, and the moving plate 74 can be moved downward through the transmission rod 73. Through the cooperation between the moving plate 74 and the connecting column 75, the connecting rods 76 at both ends of the connecting column 75 can be moved downward simultaneously, and the two clamping rods 6 are driven to approach each other through the connecting rods 76.

[0039] Please refer specifically to Figure 4 , the adjusting mechanism 8 includes a moving groove 81 opened inside the transmission frame 72. A threaded rod 82 is rotatably sleeved inside the moving groove 81. A slider 83 that slides inside the moving groove 81 is threadedly connected to the outer periphery of the threaded rod 82. One side surface of the slider 83 is rotatably connected to the top end of the transmission rod 73. One end of the threaded rod 82 penetrates through the transmission frame 72 and is fixedly sleeved with a rocker 84.

[0040] In the above solution, by externally rotating the rocker 84 and causing the threaded rod 82 to rotate inside the transmission frame 72 through the rocker 84, and adjusting the position of the slider 83 inside the moving groove 81 through the threaded rod 82, the height at which the moving plate 74 descends can be adjusted through the transmission rod 73.

[0041] When the present utility model is in use: Place the heat exchanger between the two clamping rods 6, then start the motor 71. The motor 71 causes the transmission frame 72 to rotate, and the moving plate 74 can be moved downward through the transmission rod 73. Through the cooperation between the moving plate 74 and the connecting column 75, the connecting rods 76 at both ends of the connecting column 75 can be moved downward simultaneously, and the two clamping rods 6 are driven by the connecting rods 76 to move closer to each other, fixing the position of the heat exchanger and improving the position stability of the heat exchanger when it is immersed in the water storage tank 2; Start the hydraulic rod 42, and the hydraulic rod 42 and the connecting frame 43 can cause the lifting plate 3 to move downward, facilitating the immersion of the surface of the heat exchanger into the water tank. When the surface of the heat exchanger is immersed in the water tank, blow air into the air exchange port through an external air blowing device, and perform a leak detection test on the heat exchanger by observing whether there are bubbles generated inside the water tank; According to the depth at which different heat exchangers are immersed in the water tank, externally rotate the rocker 84, and cause the threaded rod 82 to rotate inside the transmission frame 72 through the rocker 84. By adjusting the position of the slider 83 inside the moving groove 81 through the threaded rod 82, the height at which the moving plate 74 descends can be adjusted through the transmission rod 73, avoiding the water inside the water tank from overflowing the air exchange port when changing the heat exchanger model and improving the versatility of the leak detection device.

[0042] The above shows and describes the basic principles, main features, and advantages of the present utility model. Those skilled in the art of this industry should understand that the present utility model is not limited by the above embodiments. What is described in the above embodiments and the specification only illustrates the principles of the present utility model. Without departing from the spirit and scope of the present utility model, the present utility model will have various changes and improvements, and these changes and improvements all fall within the scope of the present utility model claimed. The scope of protection claimed by the present utility model is defined by the appended claims and their equivalents.

Claims

1. A maintenance and leak detection device for an oil and gas production heat exchanger, comprising a support plate (1), characterized in that: A water tank (2) is fixed to one side of the support plate (1), a lifting plate (3) is arranged above the water tank (2), and a lifting mechanism (4) is arranged between the lifting plate (3) and the support plate (1) to drive the lifting plate (3) to move up and down; Two groups of positioning frames (5) are fixed to the bottom surface of the lifting plate (3), and the bottom end of each group of positioning frames (5) is slidably sleeved with a clamping rod (6) for positioning the heat exchanger. The bottom surface of the lifting plate (3) is provided with a power mechanism (7) for driving the clamping rod (6) to move, and the power mechanism (7) includes a connecting rod (76) rotatably connected to a side of the clamping rod (6), the bottom end of the connecting rod (76) is rotatably sleeved with a connecting column (75), the middle section of the connecting column (75) is fixed with a moving plate (74), the top end of the moving plate (74) is rotatably connected to a transmission rod (73), the top end of the transmission rod (73) is connected to a transmission frame (72), and the interior of the transmission frame (72) is provided with an adjustment mechanism (8) for adjusting the moving distance of the transmission rod (73).

2. The oil and gas production heat exchanger maintenance and leak detection equipment according to claim 1, characterized in that: The lifting mechanism (4) comprises a support rod (41) fixed on the top surface of the support plate (1), a hydraulic rod (42) fixed on the bottom surface of the support rod (41), and a connecting frame (43) sleeved on the outer surface of the lifting plate (3) fixed on the bottom end of the hydraulic rod (42).

3. The oil and gas production heat exchanger maintenance and leak detection equipment according to claim 2, characterized in that: The lifting mechanism (4) further comprises a slide groove (44) provided on one side of the support plate (1), and a connecting block (45) sliding inside the slide groove (44) is fixed on one side of the connecting frame (43).

4. The oil and gas production heat exchanger maintenance and leak detection equipment according to claim 1, characterized in that: The power mechanism (7) comprises a motor (71) fixed to the bottom surface of the lifting plate (3), and the output end of the motor (71) is fixed to one end of a transmission frame (72).

5. The oil and gas production heat exchanger maintenance and leak detection equipment according to claim 1, characterized in that: The power mechanism (7) further comprises a limiting frame (78) fixed on the bottom surface of the lifting plate (3) and a limiting groove (77) provided on a side surface of the moving plate (74), wherein the bottom end of the limiting frame (78) is slidably connected to the inside of the limiting groove (77).

6. The oil and gas production heat exchanger maintenance and leak detection equipment according to claim 1, characterized in that: Both ends of the connecting column (75) are fixedly sleeved with lifting rods (79), and the top end of each lifting rod (79) is slidably connected to the inside of the lifting plate (3).

7. The oil and gas production heat exchanger maintenance and leak detection equipment according to claim 1, characterized in that: The adjusting mechanism (8) comprises a moving groove (81) provided inside the transmission frame (72), a threaded rod (82) being rotatably sleeved inside the moving groove (81), a slider (83) being slidable inside the moving groove (81) through a threaded connection on the outer periphery of the threaded rod (82), a side surface of the slider (83) being rotatable on the top end of the transmission rod (73), and one end of the threaded rod (82) passing through the transmission frame (72) and being fixedly sleeved with a rocker (84).

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