Spraying protection device for sealing end face of heat exchanger tube bundle

Abstract

The utility model discloses a spraying protection device for a sealing end face of a heat exchanger tube bundle, and relates to the technical field of spraying protection devices, the spraying protection device for the sealing end face of the heat exchanger tube bundle comprises a supporting ring, a connecting hole is formed in the middle of the supporting ring, and a shielding ring is installed in one side of the supporting ring; a negative pressure assembly is installed in the shielding ring and comprises an air suction pipe, a control valve is installed in the middle of the air suction pipe, an air suction ring is installed on one side of the air suction pipe, a connecting pipe is installed on one side of the air suction ring, and an air suction device is arranged on one side of the connecting pipe. According to the device, the clamping assembly and the sealing assembly are used in cooperation, the silica gel ring is attached to the sealing end face, the two sides of the silica gel ring are sealed through the two sealing rings, and therefore the sealing effect of the device on the sealing end face is improved, a threaded rod is made to rotate by rotating a rotating handle to push an anti-skid plate to move, and the anti-skid effect is improved. Therefore, clamping and fixing are carried out.

Description

Technical Field

[0001] The utility model relates to the technical field of spray protection devices, in particular to a spray protection device for the sealing end surface of a heat exchanger tube bundle. Background Art

[0002] A heat exchanger, also known as a heat exchanger, is a device that transfers some of the heat from a hot fluid to a cold fluid. It plays a vital role in chemical, petroleum, power, food, and many other industrial production processes, and is widely used, making it an indispensable piece of equipment in chemical production. Heat is transferred through the tube bundle within the heat exchanger. The tube bundle cools one fluid and heats another to meet their respective needs. To prevent aging and wear of the heat exchanger tube bundle, the ends of the tube bundle are sprayed with anti-corrosion material to ensure its service life.

[0003] The existing patent CN220941329U proposes a spray protection device for the sealing end face of the heat exchanger tube bundle, including a shielding tube, a sealing ring is fixed on the lower end surface of the shielding tube, a fixing ring is fixed on the upper end of the outer ring surface of the shielding tube, a rotating tube is threadedly sleeved on the outer ring surface of the fixing ring, bolts are threadedly inserted in the middle of the ring body around the connecting ring along the horizontal direction, a rotating ring is fixed on the end surface of the rotating tube away from the connecting ring, and a baffle is fixed on the top of the inner ring surface of the rotating ring. During use, it helps to shield and protect the part of the end of the heat exchanger tube bundle used for installation, so as to avoid affecting the flatness of the installation position of the end of the heat exchanger tube bundle.

[0004] However, the spray protection device for the sealing end face of the heat exchanger tube bundle still has certain defects. During use, the limiting effect is insufficient due to the limitation by bolts, resulting in poor fit between the sealing ring and the sealing section, resulting in poor sealing effect. In addition, the device seals the sealing end door as a whole, which makes spraying inconvenient due to the obstruction of the sealing structure during spraying.

[0005] Based on this, a spray protection device for the sealing end face of a heat exchanger tube bundle is now provided, which can eliminate the disadvantages of the existing device. Utility Model Content

[0006] The purpose of the utility model is to provide a spray protection device for the sealing end surface of a heat exchanger tube bundle, so as to solve the problems of poor sealing effect and inconvenience in use in the background art.

[0007] To achieve the above objectives, the present invention provides the following technical solutions:

[0008] A spray protection device for the sealing end face of a heat exchanger tube bundle comprises a support ring, a connection hole is opened in the middle of the support ring, and a shielding ring is installed inside one side of the support ring;

[0009] A negative pressure assembly is installed inside the shielding ring, and the negative pressure assembly includes an exhaust pipe, a control valve is installed in the middle of the exhaust pipe, an exhaust ring is installed on one side of the exhaust pipe, a connecting pipe is installed on one side of the exhaust ring, and an exhaust device is provided on one side of the connecting pipe;

[0010] A sealing assembly is installed on the other side of the support ring.

[0011] On the basis of the above technical solutions, the present invention also provides the following optional technical solutions:

[0012] In an optional solution, clamping components for clamping are installed around the support ring.

[0013] In an optional solution: the clamping assembly includes a support frame, which is installed around the support ring. The support frame is rotatably connected to a threaded rod inside, a rotating handle is installed on one side of the threaded rod, and an anti-slip plate is rotatably connected to the other side of the threaded rod.

[0014] In an optional solution, the support frame is L-shaped, and the threaded rod and the support frame are rotationally connected via threads.

[0015] In an optional solution: the sealing assembly includes a connecting ring, which is installed on the other side of the support ring, a mounting hole is opened in the middle of the connecting ring, a silicone ring is installed in the middle of one side of the connecting ring, an adsorption cavity is opened on one side of the silicone ring, and sealing rings are installed on the inner and outer sides of the silicone ring.

[0016] In an optional solution: the silicone ring and the sealing ring are both made of silicone rubber with a Shore hardness of 50A-70A.

[0017] In an optional solution, the exhaust pipe passes through the connecting hole, the mounting hole and the silicone ring and is connected to the adsorption chamber.

[0018] Compared with the prior art, the beneficial effects of the present invention are as follows:

[0019] 1. The utility model improves the sealing effect of the device by cooperating with the clamping component and the sealing component. The silicone ring fits the sealing end face, and the two sealing rings seal the two sides of the silicone ring, thereby improving the sealing effect of the device on the sealing end face. The threaded rod is rotated by rotating the handle to push the anti-slide plate to move, thereby clamping and fixing the device, improving the firmness of the clamping and fixing of the device, and avoiding the problem of insufficient sealing effect caused by poor fitting between the sealing ring and the silicone ring.

[0020] 2. The utility model improves the adsorption effect of the silicone ring through the negative pressure component. When the vacuum device is running, the gas inside the adsorption chamber is extracted through the vacuum pipe, so that the adsorption chamber generates negative pressure, which drives the silicone ring to adsorb the sealing end face, thereby improving the sealing effect of the device and avoiding the problem of poor spray protection effect due to poor sealing effect during use. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 It is a schematic diagram of the overall structure of the utility model.

[0022] Figure 2 This is a schematic diagram of the support ring and clamping assembly of the utility model.

[0023] Figure 3 This is a schematic diagram of the negative pressure component of the present invention.

[0024] Figure 4 This is a schematic diagram of the sealing component of the present invention.

[0025] Notes on the accompanying drawings: 1. Support ring; 11. Connecting hole; 12. Shielding ring; 13. Support frame; 14. Threaded rod; 15. Turning handle; 16. Anti-slip plate; 2. Exhaust pipe; 21. Control valve; 22. Exhaust ring; 23. Connecting pipe; 24. Exhaust device; 3. Connecting ring; 31. Mounting hole; 32. Silicone ring; 33. Adsorption chamber; 34. Sealing ring. DETAILED DESCRIPTION

[0026] In order to make the purpose, technical solutions and advantages of the present invention more clear, the present invention is further described in detail below with reference to the accompanying drawings and embodiments.

[0027] In one embodiment, Figure 1-Figure 4 As shown, a spray protection device for the sealing end face of a heat exchanger tube bundle comprises a support ring 1, a connecting hole 11 is opened in the middle of the support ring 1, and a shielding ring 12 is installed inside one side of the support ring 1;

[0028] A negative pressure assembly is installed inside the shielding ring 12, and the negative pressure assembly includes an exhaust pipe 2, a control valve 21 is installed in the middle of the exhaust pipe 2, an exhaust ring 22 is installed on one side of the exhaust pipe 2, a connecting pipe 23 is installed on one side of the exhaust ring 22, and an exhaust device 24 is provided on one side of the connecting pipe 23;

[0029] A sealing assembly is installed on the other side of the support ring 1 .

[0030] In this embodiment, the shielding ring 12 is used to shield excess material during spraying, thereby avoiding the problem of paint being sprayed onto the control valve 21 and causing damage. By operating the exhaust device 24, the interior of the exhaust ring 22 is evacuated through the connecting pipe 23, so that the exhaust pipe 2 is evacuated, thereby cooperating with the sealing component to improve the sealing effect of the device.

[0031] In one embodiment, Figure 1 and Figure 2 As shown, clamping components for clamping are installed around the support ring 1. The clamping of the clamping components increases the fitting effect between the sealing component and the sealing end face.

[0032] In one embodiment, Figure 1 and Figure 2 As shown, the clamping assembly includes a support frame 13, which is installed around the support ring 1. The support frame 13 is rotatably connected to a threaded rod 14 inside, a rotating handle 15 is installed on one side of the threaded rod 14, and an anti-slip plate 16 is rotatably connected to the other side of the threaded rod 14. By rotating the rotating handle 15, the threaded rod 14 is driven to rotate inside the support frame 13, thereby pushing the anti-slip plate 16 to clamp, thereby improving the stability of the support ring 1.

[0033] In one embodiment, Figure 1 and Figure 2 As shown, the support frame 13 is L-shaped, and the threaded rod 14 and the support frame 13 are rotatably connected via threads. The threaded rod 14 rotates inside the support frame 13, thereby driving the threaded rod 14 to move.

[0034] In one embodiment, Figure 1 and Figure 4 As shown, the sealing assembly includes a connecting ring 3, which is installed on the other side of the support ring 1. A mounting hole 31 is provided in the middle of the connecting ring 3. A silicone ring 32 is installed in the middle of one side of the connecting ring 3. An adsorption chamber 33 is provided on one side of the silicone ring 32. Sealing rings 34 are installed on the inner and outer sides of the silicone ring 32. The silicone ring 32 fits the sealing end face, and the two sealing rings 34 on both sides thereof are used to seal the two sides of the silicone ring 32, thereby improving the sealing effect of the device. Through the cooperation of the adsorption chamber 33 and the negative pressure assembly, the adsorption chamber 33 generates a negative pressure adsorption sealing section.

[0035] In one embodiment, Figure 1 and Figure 4 As shown, the silicone ring 32 and the sealing ring 34 are both made of silicone rubber with a Shore hardness of 50A-70A. The materials of the silicone ring 32 and the sealing ring 34 can better fit the sealing end surface.

[0036] In one embodiment, Figure 1-Figure 4 As shown, the exhaust pipe 2 passes through the connecting hole 11 , the mounting hole 31 and the silicone ring 32 and is connected to the adsorption chamber 33 , so that the exhaust pipe 2 can absorb air from the interior of the adsorption chamber 33 .

[0037] The above embodiment discloses a spray protection device for the sealing end face of a heat exchanger tube bundle, wherein the support ring 1 is installed on one side of the sealing end face, so that the silicone ring 32 on one side of the connecting ring 3 fits the sealing end face, and the two sealing rings 34 on the inner and outer sides of the silicone ring 32 fit the end face at the same time, thereby sealing the contact point between the silicone ring 32 and the sealing end face, improving the sealing effect of the device and achieving a double-layer sealing effect, thereby avoiding the problem of the sealing section being sprayed, and by rotating the handle 15, the threaded rod 14 is driven to rotate inside the support frame 13, thereby pushing the anti-slide plate 16 to clamp, thereby clamping and fixing the device, and improving the sealing effect. The fit between the sealing ring 34 and the silicone ring 32 and the sealing end face improves the protection effect of the device on the sealing end face. Since the sealing end face is provided with a hole for installation, the control valve 21 in the exhaust pipe 2 corresponding to the hole is closed, thereby avoiding the problem that the adsorption chamber 33 cannot be sealed and adsorption cannot be caused. Through the operation of the exhaust device 24, the interior of the exhaust ring 22 is exhausted through the connecting pipe 23, thereby driving the exhaust pipe 2 to exhaust the interior of the adsorption chamber 33, so that the adsorption chamber 33 generates negative pressure, thereby improving the fit of the silicone ring 32 to the sealing end face, improving the protection effect of the device on the sealing end face, and avoiding the problem of insufficient sealing effect.

[0038] The above description is merely a specific embodiment of the present application, but the scope of protection of the present application is not limited thereto. Any changes or substitutions that can be easily conceived by a person skilled in the art within the technical scope disclosed in this application should be included in the scope of protection of the present application. Therefore, the scope of protection of the present application should be based on the scope of protection of the claims.

Claims

1. A spray protection device for the sealing end face of a heat exchanger tube bundle, comprising a support ring (1), a connection hole (11) being provided in the middle of the support ring (1), and a shielding ring (12) being installed inside one side of the support ring (1); It is characterized in that A negative pressure assembly is installed inside the shielding ring (12), and the negative pressure assembly includes an air extraction pipe (2), a control valve (21) is installed in the middle of the air extraction pipe (2), an air extraction ring (22) is installed on one side of the air extraction pipe (2), a connecting pipe (23) is installed on one side of the air extraction ring (22), and an air extraction device (24) is provided on one side of the connecting pipe (23); A sealing assembly is installed on the other side of the support ring (1).

2. A spray protection device for the sealing end surface of a heat exchanger tube bundle according to claim 1, characterized in that: Clamping components for clamping are installed around the support ring (1).

3. The spray protection device for the sealing end surface of a heat exchanger tube bundle according to claim 2, characterized in that: The clamping assembly comprises a support frame (13), the support frame (13) being mounted around the support ring (1), the interior of the support frame (13) being rotatably connected to a threaded rod (14), a rotating handle (15) being mounted on one side of the threaded rod (14), and an anti-slip plate (16) being rotatably connected to the other side of the threaded rod (14).

4. A spray protection device for the sealing end surface of a heat exchanger tube bundle according to claim 3, characterized in that: The support frame (13) is L-shaped, and the threaded rod (14) and the support frame (13) are rotatably connected via threads.

5. The spray protection device for the sealing end surface of a heat exchanger tube bundle according to claim 1, characterized in that: The sealing assembly comprises a connecting ring (3), the connecting ring (3) being mounted on the other side of the supporting ring (1), a mounting hole (31) being provided in the middle of the connecting ring (3), a silicone ring (32) being mounted in the middle of one side of the connecting ring (3), an adsorption cavity (33) being provided on one side of the silicone ring (32), and sealing rings (34) being mounted on both the inner and outer sides of the silicone ring (32).

6. A spray protection device for the sealing end surface of a heat exchanger tube bundle according to claim 5, characterized in that: The silicone ring (32) and the sealing ring (34) are both made of silicone rubber with a Shore hardness of 50A-70A.

7. The spray protection device for the sealing end surface of a heat exchanger tube bundle according to claim 5, characterized in that: The exhaust pipe (2) passes through the connecting hole (11), the mounting hole (31), and the silicone ring (32) to be connected to the adsorption chamber (33).

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