Exhaust device of heat exchanger for chemical petroleum refining

Abstract

The utility model discloses an exhaust device of a heat exchanger for chemical petroleum refining. The exhaust device comprises a main body, a first cavity is formed in the main body, and a motor, a transmission rod, a first gear, a second gear, a threaded rod, a limiting rod, a sliding block and a cylindrical plug are arranged in the first cavity; a motor drives a first gear to drive a second gear, and then a threaded rod is driven to rotate, so that a sliding block and a cylindrical plug are driven to move; a first connecting block is fixedly connected to one end of the outer side of the main body, a clamping rod is connected to the first connecting block, a second connecting block is detachably connected to the side, away from the main body, of the first connecting block, and a clamping groove matched with the clamping rod is formed in the side, close to the first connecting block, of the second connecting block. The exhaust device can perform exhaust control on the heat exchanger, ensures that the internal pressure of the heat exchanger is within a safe and ideal range, can be disassembled and maintained, and improves the durability of the exhaust device.

Description

Technical Field

[0001] The utility model relates to the technical field of chemical and petroleum refining, in particular to an exhaust device for a heat exchanger used in chemical and petroleum refining. Background Art

[0002] The chemical and petroleum refining industry occupies a crucial position in modern industry. In this complex production process, heat exchangers play a key role in realizing the effective exchange and transfer of heat. Due to the wide application of automation and intelligent technologies in the industrial field, the exhaust devices of heat exchangers are also developing towards automatic control and remote monitoring, so as to monitor the operation status of the exhaust devices in real time, discover and solve potential problems in a timely manner. A stable and reliable heat exchanger exhaust device is urgently needed in this field.

[0003] The exhaust devices of heat exchangers used in chemical and petroleum refining in the prior art, such as an exhaust device for a heat exchanger used in chemical and petroleum refining disclosed in Patent Application No. 202121916710.0, specifically disclose a heat exchanger body, and a pressure relief pipe is connected to the bottom of the heat exchanger body for exhausting gas through the pressure relief pipe; for another example, an exhaust device for a heat exchanger used in chemical and petroleum refining disclosed in Patent Application No. 201922471354.5 specifically discloses a heat exchange box, an air inlet pipe, a guide pipe, a first air flow pipe, an exhaust pipe, a second air flow pipe and a third air flow pipe. The above prior arts can all achieve gas exhaust, but it is found in the research that the following problems exist in the prior art:

[0004] 1. For the existing exhaust devices of heat exchangers used in chemical and petroleum refining, although they can exhaust gas, it is difficult to control the exhaust of the heat exchanger. In the prior art, it is impossible to ensure that the pressure inside the heat exchanger is within a safe and ideal range, reducing the stability and reliability during the operation of the heat exchanger.

[0005] 2. It can be seen from the above patents that the exhaust devices of heat exchangers used in chemical and petroleum refining in the prior art are usually integrated, making it difficult to disassemble and maintain the exhaust device, reducing the durability of the exhaust device. Summary of the Utility Model

[0006] Aiming at the deficiencies of the prior art, the utility model provides an exhaust device for a heat exchanger used in chemical and petroleum refining, which solves the problems in the prior art that it is difficult to control the exhaust of the heat exchanger, impossible to ensure that the pressure inside the heat exchanger is within a safe and ideal range, and difficult to disassemble and maintain the exhaust device as mentioned in the above background art.

[0007] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0008] An exhaust device for a heat exchanger used in chemical and petroleum refining, comprising: a main body; a first cavity is provided inside the main body, a motor is fixedly connected to the top end of the inner wall on one side of the first cavity, the output end of the motor is splined with a transmission rod, one end of the transmission rod is fixedly connected with a first gear, the surface of the first gear is meshed with a second gear, a threaded rod is fixedly penetrated through the center position of the second gear, and a limiting rod is fixedly connected at a position opposite to the threaded rod in the first cavity, a slider is connected to the surface of the threaded rod, and a cylindrical plug is connected to the slider;

[0009] One end of the outside of the main body is fixedly connected with a first connecting block, a clamping rod is arranged on the first connecting block, the second connecting block is detachably connected to the side of the first connecting block away from the main body, and a clamping groove matching with the clamping rod is opened on the side of the second connecting block close to the first connecting block.

[0010] As a further technical solution, the connection between the slider and the cylindrical plug is specifically: the slider penetrates through the cylindrical plug, and after the slider penetrates through the cylindrical plug, it is slidably connected to the surface of the limiting rod.

[0011] As a further technical solution, a first exhaust pipe is fixedly connected to the side of the second connecting block away from the first connecting block.

[0012] As a further technical solution, the arrangement of the clamping rod on the first connecting block is specifically: a second cavity is opened inside the first connecting block, the clamping rod is connected to the inner side wall of the second cavity, one end of the clamping rod is movably connected to the inner side wall of the second cavity, and the other end extends outside the first connecting block.

[0013] As a further technical solution, a pressing rod is fixedly connected to one side surface of the clamping rod, and a spring is commonly connected between the other side and the inner bottom wall of the second cavity.

[0014] As a further technical solution, one end of the pressing rod extends outside the first connecting block, a pressing plate is fixedly connected to the end of the pressing rod extending outside the first connecting block, and anti-slip lines are opened on the surface of the pressing plate.

[0015] As a further technical solution, the first connecting block and the second connecting block have the same size and cross-section.

[0016] As a further technical solution, a sealing ring is commonly arranged between the first connecting block and the second connecting block, and the material of the sealing ring is rubber material.

[0017] As a further technical solution, a second exhaust pipe is fixedly connected to the end of the main body away from the first connecting block, and a protective net cover is installed inside the second exhaust pipe, and the protective net cover is used to prevent foreign objects from entering the inside of the main body.

[0018] As a further technical solution, a handle is provided on the surface of the main body, and a rubber sleeve is fixedly sleeved on the surface of the handle.

[0019] One or more technical solutions of the present utility model have the following beneficial effects:

[0020] (1) Through the settings of the motor, the first gear, the second gear, the threaded rod, the slider and the cylindrical plug in the present utility model, when the pressure inside the heat exchanger is too high, the motor is first started to drive the first gear to rotate forward, so that the first gear drives the threaded rod to rotate through the second gear, drives the slider threadedly connected to the threaded rod to move, and separates the cylindrical plug from the inner side wall of the first exhaust pipe, thereby opening the exhaust device to reduce the pressure inside the heat exchanger. The pressure inside the heat exchanger is adjusted by the forward and reverse rotation of the motor to prevent damage to the equipment caused by too high or too low pressure, ensuring the stable and reliable operation of the heat exchanger.

[0021] (2) Through the settings of the first connecting block, the clamping rod, the pressing rod, the spring and the second connecting block in the present utility model, when the maintenance personnel disassemble the exhaust device of the heat exchanger for chemical and petroleum refining, first press the pressing plate, so that the pressing plate drives the clamping rod to move through the pressing rod, and at the same time compresses the spring. When the clamping rod moves to a suitable position, the first connecting block and the second connecting block can be separated, thereby completing the disassembly of the exhaust device and maintaining it. It solves the problem that the exhaust device in the prior art is usually integrated and it is difficult to disassemble and maintain the exhaust device, improving the durability of the device. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] The specification drawings forming a part of the present utility model are used to provide a further understanding of the present utility model. The schematic embodiments and descriptions thereof of the present utility model are used to explain the present utility model and do not constitute an improper limitation to the present utility model.

[0023] Figure 1 It is a schematic diagram of the overall structure of the exhaust device of the heat exchanger for chemical and petroleum refining of the present utility model;

[0024] Figure 2 It is a schematic diagram of the oblique view structure of the exhaust device of the heat exchanger for chemical and petroleum refining of the present utility model;

[0025] Figure 3 It is a sectional view structure diagram of the first connecting block and the second connecting block in the exhaust device of the heat exchanger for chemical and petroleum refining of the present utility model;

[0026] Figure 4 It is a schematic diagram of the sectional view structure of the main body in the exhaust device of the heat exchanger for chemical and petroleum refining of the present utility model.

[0027] Wherein: 1. Main body; 2. Motor; 3. First gear; 4. Second gear; 5. Threaded rod; 6. Slide block; 7. Cylindrical plug; 8. First connecting block; 9. Locking rod; 10. Pressing rod; 11. Spring; 12. Second connecting block; 13. First exhaust pipe; 14. Limiting rod; 15. Pressing plate; 16. Handle; 17. Rubber sleeve; 18. Second exhaust pipe; 19. Sealing ring. Detailed implementation manners

[0028] It should be noted that the following detailed descriptions are all illustrative and are intended to provide further explanations of the present utility model. Unless otherwise specified, all technical and scientific terms used in the present utility model have the same meanings as those commonly understood by those of ordinary skill in the technical field to which the present utility model belongs.

[0029] Embodiment 1

[0030] The present utility model provides an exhaust device for a heat exchanger used in chemical and petroleum refining, as Figure 1 shown in the overall structural schematic diagram, including a main body 1, and again as Figure 4 shown in the sectional structural schematic diagram of the main body, a first cavity is opened inside the main body 1. At the top of one inner wall of the first cavity, a motor 2 is fixedly connected. The output end of the motor 2 is splined with a transmission rod. One end of the transmission rod is fixedly connected with a first gear 3. The surface of the first gear 3 is meshed with a second gear 4. A threaded rod 5 is fixedly and penetratingly connected at the central position of the second gear 4. And at a position in the first cavity opposite to the threaded rod, a limiting rod 14 is fixedly connected. A slide block is threadedly connected to the surface of the threaded rod 5. And a cylindrical plug is connected to the slide block. Specifically: still as Figure 4 shown, the slide block penetrates through the cylindrical plug, and after passing through the cylindrical plug, the slide block is slidably connected to the surface of the limiting rod. Through the settings of the motor 2, the first gear 3, the second gear 4, the threaded rod 5, the slide block 6 and the cylindrical plug 7, when the pressure inside the heat exchanger is too high, first start the motor 2 to drive the first gear 3 to rotate forward, so that the first gear 3 drives the threaded rod 5 to rotate through the second gear 4, drives the slide block 6 threadedly connected to the threaded rod 5 to move, and then drives the cylindrical plug 7 to move, thereby opening the exhaust device to reduce the pressure inside the heat exchanger. Adjust the pressure inside the heat exchanger through the forward and reverse rotation of the motor 2 to prevent damage to the equipment caused by too high or too low pressure, and ensure the stable operation of the heat exchanger. At the same time, through the setting of the limiting rod 14, the stability of the slide block 6 during movement is ensured.

[0031] As Figure 1As shown in the overall structure schematic diagram, one end outside the main body 1 is fixedly connected with a first connecting block 8. A clamping rod 9 is arranged and connected on the first connecting block. And the side of the first connecting block 8 far from the main body 1 is detachably connected with a second connecting block 12. The first connecting block 8 and the second connecting block 12 have the same size and cross-section. A clamping groove matching the clamping rod 9 is opened on the side of the second connecting block 12 close to the first connecting block 8. When the clamping groove is engaged with the clamping rod 9, the first connecting block 8 and the second connecting block 12 are connected. When the clamping rod 9 is separated from the clamping groove, the first connecting block 8 and the second connecting block 12 are also separated. The side of the second connecting block 12 far from the first connecting block 8 is fixedly connected with a first exhaust pipe 13. Specifically: As Figure 3 As shown in the cross-sectional view structure diagram of the first connecting block and the second connecting block, a second cavity is opened inside the first connecting block 8. The inner side wall of the second cavity is connected with the clamping rod 9. One end of the clamping rod 9 is movably connected to the inner side wall of the second cavity, and the other end extends outside the first connecting block. A pressing rod 10 is fixedly connected to one side surface of the clamping rod 9. A spring 11 is jointly connected between the other side and the inner bottom wall of the second cavity. Through the settings of the first connecting block 8, the clamping rod 9, the pressing rod 10, the spring 11 and the second connecting block 12, when maintenance personnel disassemble the exhaust device of the chemical and petroleum refining heat exchanger, first press the pressing plate 15, so that the pressing plate 15 drives the clamping rod 9 to move through the pressing rod 10, and at the same time compresses the spring 11. When the clamping rod 9 moves to a suitable position, the first connecting block 8 and the second connecting block 12 can be separated, so as to complete the disassembly of the exhaust device and maintain it, improving the durability of the device. Preferably, in order to enhance the stability during clamping, the above-mentioned clamping rod 9, pressing rod 10, and spring 11 are symmetrically arranged in two groups. Similarly, two groups of clamping grooves matching the clamping rod 9 are also arranged.

[0032] In this embodiment, as Figure 3 shown, one end of the pressing rod 10 extends outside the first connecting block 8. As Figure 2 shown, a pressing plate 15 is fixedly connected to the end of the pressing rod 10 extending outside the first connecting block 8. Through the setting of the pressing plate 15, it is convenient for the staff to press the pressing rod 10. And anti-slip lines are opened on the surface of the pressing plate 15 to increase the friction during pressing and prevent slipping. As Figure 3 shown, a sealing ring 19 is jointly arranged between the first connecting block 8 and the second connecting block 12. Through the setting of the sealing ring 19, the sealing performance of the device during use is improved. The material of the sealing ring 19 is rubber material, and the sealing effect is better. As Figure 2 shown, one end of the main body 1 far from the first connecting block 8 is fixedly connected with a second exhaust pipe 18. A protective net cover is installed inside the second exhaust pipe 18. Through the setting of the protective net cover, foreign objects can be prevented from entering the inside of the main body 1 and damaging the internal components. Still as Figure 2As shown in the figure, a handle 16 is provided on the surface of the main body 1. By setting the handle 16, it is convenient for the staff to move the device. A rubber sleeve 17 is fixedly sleeved on the surface of the handle 16 to increase the friction during the movement and prevent slipping.

[0033] An exhaust device for a chemical petroleum refining heat exchanger mentioned in this embodiment, its specific working principle is divided into how to ensure that the pressure inside the heat exchanger is within a safe and ideal range, and how to disassemble and maintain it, as follows:

[0034] I. When the pressure inside the heat exchanger is too high, first start the starting motor 2. The motor 2 starts to drive the first gear 3 to rotate forward. The rotation of the first gear 3 drives the second gear 4 to rotate, and then drives the threaded rod 5 to rotate, thereby driving the slider 6 threadedly connected to the threaded rod 5 to move, so that the cylindrical plug 7 is separated from the inner side wall of the first exhaust pipe, thus opening the exhaust device, and then reducing the pressure inside the heat exchanger. The pressure inside the heat exchanger is adjusted by the forward and reverse rotation of the motor 2 to prevent damage to the equipment caused by too high or too low pressure, and ensure the safe and stable operation of the heat exchanger.

[0035] II. If the operator needs to disassemble and maintain the exhaust device of the chemical petroleum refining heat exchanger, the operator first needs to press the pressing plate 15, so that the pressing plate 15 drives the clamping rod 9 to move through the pressing rod 10, and at the same time compresses the spring 11. When the clamping rod 9 moves to a suitable position, the first connecting block 8 and the second connecting block 12 can be separated, thus completing the disassembly of the exhaust device and maintaining it. Compared with the integrated structure in the prior art, this device greatly improves the durability of the device.

[0036] The standard parts used in this embodiment can all be purchased from the market, and can also be customized according to the description of the specification and the drawings. The specific connection methods of each part all adopt conventional means such as bolts, rivets, and welding in the prior art. The machines, parts and equipment all adopt conventional models in the prior art, and the components known to those skilled in the art, their structures and principles can all be known by those skilled in the art through technical manuals or through conventional experimental methods.

[0037] The above are only the preferred embodiments of the present invention and are not used to limit the present invention. For those skilled in the art, the present invention can have various changes and modifications. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention shall be included within the protection scope of the present invention.

Claims

1. An exhaust device for a heat exchanger used in chemical and petroleum refining, characterized in that, Including: A main body; A first cavity is formed inside the main body. At the top of one inner wall of the first cavity, a motor is fixedly connected. The output end of the motor is splined with a transmission rod. One end of the transmission rod is fixedly connected with a first gear. The surface of the first gear is meshed with a second gear. A threaded rod is fixedly penetrated through the center position of the second gear. And at a position opposite to the threaded rod inside the first cavity, a limiting rod is fixedly connected. A slider is connected to the surface of the threaded rod, and a cylindrical plug is connected to the slider; One end of the outside of the main body is fixedly connected with a first connecting block. A clamping rod is arranged on the first connecting block. The side of the first connecting block away from the main body is detachably connected with a second connecting block. A clamping groove matching with the clamping rod is formed on the side of the second connecting block close to the first connecting block.

2. The exhaust device of a heat exchanger for chemical and petroleum refining according to claim 1, characterized in that, The connection between the slider and the cylindrical plug is specifically: the slider penetrates through the cylindrical plug, and after the slider penetrates through the cylindrical plug, it is slidably connected to the surface of the limiting rod.

3. The exhaust device of a heat exchanger for chemical and petroleum refining as described in claim 1, characterized in that, One side of the second connecting block away from the first connecting block is fixedly connected with a first exhaust pipe.

4. The exhaust device of a heat exchanger for chemical and petroleum refining according to claim 1, characterized in that, The arrangement of the clamping rod on the first connecting block is specifically: a second cavity is formed inside the first connecting block. The inner side wall of the second cavity is connected with the clamping rod. One end of the clamping rod is movably connected to the inner side wall of the second cavity, and the other end extends outside the first connecting block.

5. The exhaust device of a chemical and petroleum refining heat exchanger according to claim 4, characterized in that A pressure rod is fixedly connected to one side surface of the clamping rod, and a spring is commonly connected between the other side and the inner bottom wall of the second cavity.

6. The exhaust device of a chemical and petroleum refining heat exchanger according to claim 5, characterized in that, One end of the pressure rod extends outside the first connecting block. A pressing plate is fixedly connected to the end of the pressure rod extending outside the first connecting block. Anti-slip lines are formed on the surface of the pressing plate.

7. The exhaust device of a heat exchanger for chemical and petroleum refining as described in claim 1, characterized in that, The first connecting block and the second connecting block have the same size and cross-section.

8. The exhaust device of a heat exchanger for chemical and petroleum refining according to claim 1, characterized in that A sealing ring is commonly arranged between the first connecting block and the second connecting block. The material of the sealing ring is rubber material.

9. The exhaust device of a heat exchanger for chemical and petroleum refining as described in claim 1, characterized in that, One end of the main body away from the first connecting block is fixedly connected with a second exhaust pipe. A protective mesh cover is installed inside the second exhaust pipe. The protective mesh cover is used to prevent foreign objects from entering the inside of the main body.

10. The exhaust device of a heat exchanger for chemical and petroleum refining as described in claim 1, characterized in that, A handle is arranged on the surface of the main body. A rubber sleeve is fixedly sleeved on the surface of the handle.

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