Heat exchanger and heat exchanger sealing device

Abstract

The utility model provides a heat exchanger sealing device which comprises a heat exchanger body, a tube plate and a tube box. The tube plate and the tube box are detachably connected, so that the heat exchanger is more convenient and faster to install and maintain. The damping spring arranged at the bottom of the inner side of the tube box body can effectively relieve various vibrations borne by the heat exchanger in the operation process. The damping design can protect the heat exchange assembly and prevent the heat exchange assembly from being deformed or damaged due to vibration, meanwhile, the sealing assembly is prevented from being damaged due to vibration, the lasting and stable sealing effect is ensured, and leakage is avoided. In addition, the fan is further arranged at the bottom of the inner side of the tube box body and can promote gas to flow in the heat exchanger, and therefore the heat exchange efficiency is improved. Therefore, the device is convenient to install and maintain, and has the advantages of good damping effect, heat exchange promotion and the like. The heat exchanger has the advantages of being convenient to maintain and detect, good in damping effect, high in heat exchange efficiency and the like.

Description

Technical Field

[0001] The utility model relates to the technical field of heat exchangers, in particular to a heat exchanger and a heat exchanger sealing device. Background Art

[0002] In the process of chemical industry, energy, refrigeration and other fields, heat exchanger is the key equipment for heat exchange, and its performance directly affects the operating efficiency of the whole system. In the traditional heat exchanger design, although many optimizations have been made in sealing and heat exchange efficiency, it still faces some challenges when facing complex operating environments.

[0003] Traditional heat exchangers are provided with tube sheets at both ends, and tube boxes are connected to the tube sheets, but the existing tube box structure is relatively simple. During operation, the heat exchanger will be affected by various vibrations, which may come from external equipment, instability of fluid flow, etc. These vibrations may not only cause deformation of the heat exchange components, but also damage the sealing structure, thereby causing leakage problems. Of course, during the heat exchange process, the fluidity and temperature distribution of the fluid have an important influence on the heat exchange efficiency. Therefore, it is necessary to propose a heat exchanger and a heat exchanger sealing device. Utility Model Content

[0004] The utility model aims to provide a heat exchanger and a heat exchanger sealing device. The heat exchanger sealing device has the function of absorbing shock to the heat exchanger body, avoiding damage to the sealing structure at the connection, and also can better exchange heat for the fluid.

[0005] A heat exchanger sealing device comprises a heat exchanger body, a tube sheet and a tube box, the tube sheets are welded and fixed at both ends of the heat exchanger body, and the tube box can be detachably connected to the tube sheets, the end portion of the heat exchanger body protrudes from the tube sheet, at least two cylindrical positioning holes are arranged on the tube sheet, a plurality of first threaded holes are arranged on the outer periphery of the tube sheet, and a circle of grooves are arranged on the tube sheet, and a sealing assembly is arranged on the groove; the tube box comprises a tube box body with an open end and a connecting plate arranged at the end of the open end of the tube box body, a cylindrical positioning column with a conical end is arranged on the connecting plate, a plurality of second threaded holes adapted to the first threaded holes are arranged on the outer periphery of the connecting plate, and at least two damping springs and a fan are arranged at the inner bottom of the tube box body.

[0006] Preferably, the sealing assembly is a rubber ring arranged around the outer side of the annular protrusion.

[0007] Furthermore, the cross section of the rubber ring is a structure with a pointed end, and one side of the pointed end is located away from the side of the connecting plate.

[0008] Preferably, an air inlet and an air outlet are respectively provided on the sides of the two pipe box bodies, and a waterproof ring and a corrosion-resistant ring are provided at the air inlet and the air outlet.

[0009] Preferably, an air inlet blocking device is provided at the air inlet, and the end of the air inlet away from the heat exchanger body is configured to be a structure with a trapezoidal cross-section, and the opening of the air inlet on the side close to the heat exchanger body is larger, and the air inlet blocking device includes an air inlet blocking head with a trapezoidal cross-section, the diameter of the air inlet blocking head on the side close to the heat exchanger body is larger, the large diameter of the air inlet blocking head is smaller than the bottom diameter of the air inlet, and a plurality of telescopic rods are provided between the side of the air inlet blocking head close to the heat exchanger body and the heat exchanger body.

[0010] Preferably, an air outlet sealing device is provided at the air outlet, and the end of the air outlet close to the heat exchanger body is configured as a structure with a trapezoidal cross-section, and the opening of the air outlet on the side away from the heat exchanger body is larger, and the air outlet sealing device includes a air outlet sealing head with a trapezoidal cross-section, the diameter of the air outlet sealing head on the side away from the heat exchanger body is larger, the large diameter of the air outlet sealing head is smaller than the diameter of the side of the air inlet away from the heat exchanger body, and a plurality of telescopic rods are provided between the side of the air outlet sealing head away from the heat exchanger body and the air outlet.

[0011] A heat exchanger comprises a heat exchanger body and the heat exchanger sealing device.

[0012] Preferably, the heat exchanger body includes a heat exchanger shell and a plurality of heat exchange coils arranged in the heat exchanger shell, the heat exchange coils include a plurality of heat exchange tubes and a plurality of U-shaped tubes, the heat exchange tubes are arranged relatively to each other, and the U-shaped tube is connected between the ends of two adjacent heat exchange tubes.

[0013] Preferably, a plurality of air blocking plates are arranged between the heat exchange coils, a circular vent is provided in the middle of the air blocking plate, and the diameter of the circular vent is 1 / 6 to 1 / 4 of the longest length of the air blocking plate.

[0014] Compared with the prior art, the utility model has the following beneficial effects: the utility model provides a heat exchanger sealing device, including a heat exchanger body, a tube sheet and a tube box. The tube sheet and the tube box are designed to be detachably connected, so that the installation and maintenance of the heat exchanger are more convenient and quick. The damping spring arranged at the bottom of the inner side of the tube box body can effectively alleviate various vibrations to which the heat exchanger is subjected during operation, such as vibration of external equipment, instability of fluid flow, etc. This shock-absorbing design can protect the heat exchange component from deformation or damage due to vibration, thereby extending the service life of the heat exchanger, while also avoiding damage to the sealing component due to vibration, ensuring the lasting stability of the sealing effect, and preventing leakage. In addition, a fan is also arranged at the bottom of the inner side of the tube box body, and the fan can promote the flow of gas inside the heat exchanger, thereby improving the heat exchange efficiency. Therefore, the heat exchanger sealing device is easy to install and maintain, and at the same time, the heat exchanger installed with the heat exchanger sealing device has the advantages of good shock absorption effect and high heat exchange efficiency. The utility model also provides a heat exchanger, which has the advantages of convenient maintenance and inspection, good shock absorption effect, and high heat exchange efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a schematic diagram of the cross-sectional structure of the heat exchanger sealing device according to the utility model;

[0016] Figure 2 It is a three-dimensional structural schematic diagram of the heat exchanger sealing device described in the utility model;

[0017] Figure 3 It is a partial structural schematic diagram of the heat exchanger described in the utility model;

[0018] in:

[0019] 1-heat exchanger body, 2-tube sheet, 3-tube box, 4-connecting plate, 11-heat exchanger shell, 12-column positioning hole, 13-column positioning column, 14-second threaded hole, 15-heat exchange coil, 31-damping spring, 32-fan, 33-tube box body. DETAILED DESCRIPTION

[0020] The embodiments described below are only some embodiments of the utility model, not all embodiments. Based on the embodiments of 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.

[0021] See also Figure 1 to Figure 3The present embodiment provides a heat exchanger sealing device, comprising a heat exchanger body 1, a tube sheet 2 and a tube box 3, the tube sheets 2 are welded and fixed at both ends of the heat exchanger body 1, and the tube box 3 can be detachably connected to the tube sheets 2, the end portion of the heat exchanger body 1 protrudes from the tube sheet 2, at least two cylindrical positioning holes 12 are arranged on the tube sheet 2, a plurality of first threaded holes are arranged on the outer periphery of the tube sheet 2, and a circle of grooves are arranged on the tube sheet 2, and a sealing component is arranged on the groove; the tube box 3 comprises a tube box body 33 with an open end and a connecting plate 4 arranged at the end of the open end of the tube box body 33, a cylindrical positioning column 13 with a conical end is arranged on the connecting plate 4, a plurality of second threaded holes 14 adapted to the first threaded holes are arranged on the outer periphery of the connecting plate 4, and at least two damping springs 31 and a fan 32 are arranged at the inner bottom of the tube box body 33.

[0022] See also Figure 3 During installation, align the connecting plate 4 of the tube box 3 with the tube sheet 2 to ensure that the conical cylindrical positioning column 13 on the connecting plate 4 can be accurately inserted into the cylindrical positioning hole 12 on the tube sheet 2. Gently rotate or adjust the position of the tube box 3 to ensure that the conical cylindrical positioning column 13 can smoothly enter the cylindrical positioning hole 12 without getting stuck or offset. At this time, the part of the heat exchanger body 1 protruding from the connecting plate 4 extends into the tube box 3. After extending into the tube box 3, the damping spring 31 supports the part of the heat exchanger body 1 protruding from the connecting plate 4. After the conical cylindrical positioning column 13 is fully inserted into the cylindrical positioning hole 12, use a bolt 5 or other fastener to pass through the second threaded hole 14 on the connecting plate 4 and tighten it to the first threaded hole on the tube sheet 2.

[0023] It should be noted that a telescopic rod is sleeved inside the damping spring 31, one end of the telescopic rod is connected to the telescopic rod, and the other end of the telescopic rod is connected to the pipe box 3. Of course, it is also possible that the damping spring 31 is not sleeved with a telescopic rod, in which case, the number of damping springs 31 can be set to multiple.

[0024] Preferably, the sealing component is a rubber ring arranged around the outer side of the annular protrusion. Further, the cross section of the rubber ring is a structure with a tip, and one side of the tip is located away from the connecting plate 4. When the sealing connection is made, the tip of the rubber ring can be inserted into the groove to make the seal tighter.

[0025] See also Figure 2Preferably, an air inlet and an air outlet are respectively arranged on the sides of the two pipe box bodies 33, and a waterproof ring 34 and a corrosion-resistant ring 35 are arranged at the air inlet and the air outlet. The movable installation of the waterproof ring 34 increases the waterproof effect of the device, and the movable installation of the corrosion-resistant ring 35 increases the corrosion-resistant effect of the device, ensuring the waterproof and corrosion-resistant performance of the air inlet and the air outlet.

[0026] Preferably, an air inlet plugging device is provided at the air inlet, the end of the air inlet away from the heat exchanger body 1 is set to a structure with a trapezoidal cross section, and the air inlet is opened larger on the side close to the heat exchanger body 1, and the air inlet plugging device includes an air inlet plugging head with a trapezoidal cross section, the diameter of the air inlet plugging head on the side close to the heat exchanger body 1 is larger, the large diameter of the air inlet plugging head is smaller than the bottom diameter of the air inlet, and a plurality of telescopic rods are provided between the side of the air inlet plugging head close to the heat exchanger body 1 and the heat exchanger body 1. When the gas flows in normally, the air inlet plugging head automatically descends under the action of the air flow to ensure smooth gas circulation; and when the gas flows back, the gas pushes the air inlet plugging head to rise, and the telescopic rod is extended accordingly, so that the air inlet plugging head blocks the air inlet, thereby reducing gas leakage and ensuring the stable operation of the heat exchanger.

[0027] Preferably, a gas outlet plugging device is provided at the gas outlet, and the end of the gas outlet close to the heat exchanger body 1 is set to a structure with a trapezoidal cross section, and the opening of the gas outlet on the side away from the heat exchanger body 1 is larger, and the gas outlet plugging device includes a gas outlet plugging head with a trapezoidal cross section, the diameter of the gas outlet plugging head on the side away from the heat exchanger body 1 is larger, and the large diameter of the gas outlet plugging head is smaller than the diameter of the side of the gas inlet away from the heat exchanger body 1, and a plurality of telescopic rods are provided between the side of the gas outlet plugging head away from the heat exchanger body 1 and the gas outlet. When the gas flows out normally, the gas outlet plugging head rises under the action of the airflow, and the gas outlet is opened; and when the gas refluxes, the gas outlet plugging head moves downward under the push of the reflux gas, and the telescopic rod follows the extension, and then the gas outlet plugging head blocks the gas outlet to prevent the gas from flowing back.

[0028] The heat exchanger sealing device provided by the utility model comprises a heat exchanger body 1, a tube sheet 2 and a tube box 3. The tube sheet 2 and the tube box 3 are designed to be detachably connected, so that the installation and maintenance of the heat exchanger are more convenient and quick. The damping spring 31 arranged at the inner bottom of the tube box body 33 can effectively alleviate various vibrations to which the heat exchanger is subjected during operation, such as vibration of external equipment, instability of fluid flow, etc. This shock-absorbing design can protect the heat exchange component from deformation or damage due to vibration, thereby extending the service life of the heat exchanger, while also avoiding damage to the sealing component due to vibration, ensuring the lasting stability of the sealing effect and preventing leakage. In addition, a fan 32 is also arranged at the inner bottom of the tube box body 33, and the fan 32 can promote the flow of gas inside the heat exchanger, thereby improving the heat exchange efficiency. Therefore, the heat exchanger sealing device is easy to install and maintain, and at the same time, the heat exchanger installed with the heat exchanger sealing device has the advantages of good shock absorption effect and high heat exchange efficiency.

[0029] This embodiment also provides a heat exchanger, including a heat exchanger body 1 and the heat exchanger sealing device.

[0030] Preferably, the heat exchanger body 1 comprises a heat exchanger shell 11 and a plurality of heat exchange coils 15 arranged in the heat exchanger shell 11, wherein the heat exchange coils 15 comprise a plurality of heat exchange tubes and a plurality of U-shaped tubes, wherein the heat exchange tubes are arranged relative to each other, and the U-shaped tubes are connected between the ends of two adjacent heat exchange tubes, so that the fluid can form a more complex flow path when flowing through the heat exchange coils 15, thereby increasing the contact area and contact time between the fluid and the heat exchange tubes.

[0031] Preferably, a plurality of air baffles are arranged between the heat exchange coils 15, and a circular vent is provided in the middle of the air baffle, and the diameter of the circular vent is 1 / 6 to 1 / 4 of the longest length of the air baffle. The arrangement of the air baffle allows the high-temperature gas to flow through the channels formed between the different air baffles, thereby increasing the flow path of the gas in the heat exchanger body 1. The circular vent significantly improves the fluidity of the gas in the heat exchanger. It allows part of the gas to flow directly through the vent, reducing the resistance to gas flow, so that the gas can be more evenly distributed around the heat exchange coil 15, which not only increases the contact area between the gas and the heat exchange coil 15, but also increases the frequency and efficiency of heat exchange. The size design of the circular vent is also crucial. A vent that is too small may restrict the flow of gas, resulting in reduced heat exchange efficiency; while a vent that is too large may cause the gas flow rate to be too fast, reducing the contact time between the gas and the heat exchange coil 15. Therefore, the diameter of the vent is set to 1 / 6 to 1 / 4 of the longest part of the wind baffle, which not only ensures the smoothness of gas circulation, but also ensures sufficient contact time between the gas and the heat exchange coil 15, thereby maximizing the heat exchange efficiency. This not only improves the heat exchange speed of the heat exchanger, the equipment can reach the predetermined temperature requirements faster, but also reduces energy consumption and operating costs. At the same time, due to the enhanced gas circulation, the pressure distribution inside the equipment is also more uniform, reducing equipment failures caused by poor gas flow or excessive pressure, and enhancing the stability and reliability of the equipment.

[0032] The heat exchanger provided by the utility model has the advantages of convenient maintenance and inspection, good shock absorption effect, high heat exchange efficiency, etc.

[0033] The preferred embodiments of the utility model disclosed above are only used to help explain the utility model, and do not limit the utility model to the specific implementation methods described. Obviously, modifications and changes can be made according to the content of this specification. The embodiments selected and specifically described in this specification are to better explain the principles and practical applications of the utility model, so that technicians in the relevant technical field can understand and use the utility model well. It is not a limitation of the utility model. Any solution that is a simple deformation of the utility model belongs to the protection scope of the utility model.

Claims

1. A heat exchanger sealing device, comprising a heat exchanger body, a tube sheet and a tube box, wherein the tube sheets are welded and fixed at both ends of the heat exchanger body, and the tube box is detachably connected to the tube sheet, characterized in that: The end portion of the heat exchanger body protrudes from the tube sheet, the tube sheet is provided with at least two cylindrical positioning holes, the outer periphery of the tube sheet is provided with a plurality of first threaded holes, and the tube sheet is provided with a circle of grooves, and a sealing assembly is provided on the groove; The pipe box includes a pipe box body with an open end and a connecting plate arranged at the end of the open end of the pipe box body, the connecting plate is provided with a cylindrical positioning column with a tapered end, the outer periphery of the connecting plate is provided with a plurality of second threaded holes adapted to the first threaded holes, and at least two damping springs and a fan are provided at the inner bottom of the pipe box body.

2. A heat exchanger sealing device according to claim 1, characterized in that: The sealing component is a rubber ring arranged around the groove.

3. A heat exchanger sealing device according to claim 2, characterized in that: The cross section of the rubber ring is a structure with a pointed end, and one side of the pointed end is located away from the side of the connecting plate.

4. A heat exchanger sealing device according to claim 1, characterized in that: An air inlet and an air outlet are respectively arranged on the sides of the two pipe box bodies, and a waterproof ring and a corrosion-resistant ring are arranged at the air inlet and the air outlet.

5. A heat exchanger sealing device according to claim 4, characterized in that: An air inlet blocking device is provided at the air inlet, and the end of the air inlet away from the heat exchanger body is configured as a structure with a trapezoidal cross-section, and the opening of the air inlet on the side close to the heat exchanger body is larger. The air inlet blocking device includes an air inlet blocking head with a trapezoidal cross-section, the diameter of the air inlet blocking head on the side close to the heat exchanger body is larger, the large diameter of the air inlet blocking head is smaller than the bottom diameter of the air inlet, and a plurality of telescopic rods are provided between the side of the air inlet blocking head close to the heat exchanger body and the heat exchanger body.

6. A heat exchanger sealing device according to claim 4, characterized in that: An air outlet sealing device is provided at the air outlet, and the end of the air outlet close to the heat exchanger body is set to a structure with a trapezoidal cross-section, and the opening of the air outlet on the side away from the heat exchanger body is larger. The air outlet sealing device includes a air outlet sealing head with a trapezoidal cross-section, the diameter of the air outlet sealing head on the side away from the heat exchanger body is larger, the large diameter of the air outlet sealing head is smaller than the diameter of the side of the air inlet away from the heat exchanger body, and a plurality of telescopic rods are provided between the side of the air outlet sealing head away from the heat exchanger body and the air outlet.

7. A heat exchanger, comprising a heat exchanger body and a heat exchanger sealing device, characterized in that: The heat exchanger sealing device is the heat exchanger sealing device according to any one of claims 1 to 6.

8. The heat exchanger according to claim 7, characterized in that: The heat exchanger body includes a heat exchanger shell and a plurality of heat exchange coils arranged in the heat exchanger shell. The heat exchange coils include a plurality of heat exchange tubes and a plurality of U-shaped tubes. The heat exchange tubes are arranged relatively to each other, and the U-shaped tubes are connected between the ends of two adjacent heat exchange tubes.

9. The heat exchanger according to claim 8, characterized in that: A plurality of air blocking plates are arranged between the heat exchange coils, a circular vent is provided in the middle of the air blocking plate, and the diameter of the circular vent is 1 / 6 to 1 / 4 of the longest length of the air blocking plate.

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