Mechanical sealing equipment with self-lubricating mechanism

Abstract

The utility model relates to the technical field of sealing equipment, in particular to mechanical sealing equipment with a self-lubricating mechanism, which comprises a valve body, a valve plate is rotatably mounted in the valve body, a mounting plate is fixed at one end of the outer ring surface of the valve body, a branch pipe is mounted on the upper side wall of the valve body, and two ends of the branch pipe penetrate into the valve body and face two sides of the upper end of the valve plate. During use, the valve plate has a self-lubricating effect to a certain degree in a manner of periodically spraying oil stain cleaning liquid, so that the phenomenon of unsmooth rotation caused by adhesion of oil stains on the surface of the valve plate is effectively avoided, namely, the disassembly frequency of the valve plate is effectively reduced during use of the scheme, and the service life of the valve plate is prolonged. Therefore, manpower, material resources and time cost are effectively saved.

Description

Technical Field

[0001] The utility model relates to the technical field of sealing equipment, in particular to a mechanical sealing equipment with a self-lubricating mechanism. Background Art

[0002] The existing Chinese patent application number: 201921817117.3 discloses a fully automatic adjustable mechanical sealing device, which is achieved by the following specific technical means: the valve body is composed of a fixed flange, a first sealing ring, a baffle, a smoke outlet and a second sealing ring; the valve body is cylindrical, and a square-shaped fixed flange is welded on the outer wall of the front end of the valve body, and the valve body is aligned with the front end surface of the fixed flange; the front end of the fixed flange is inlaid with a circular second sealing ring; the rear end of the fixed flange is inlaid with a square-shaped first sealing ring; a C-shaped baffle is welded on the inner wall of the rear end of the valve body, and the rear end surface of the baffle is aligned with the rear end surface of the valve body; an arc-shaped shell-shaped smoke outlet is welded on the rear end of the valve body, and the opening of the smoke outlet faces upward; a cylindrical valve core is sleeved on the inner side of the front end of the valve body, and the valve core is composed of a reducing interface, a shackle protrusion, a connecting part and a valve blade; the front end of the valve core is set as a reducing interface.

[0003] When the above-mentioned equipment is in use, although the valve core can be disassembled and repaired when the valve disc is jerky due to adhered oil and is not flexible in rotation, the above-mentioned operations require personnel to remove the valve core, and when removing the valve core, personnel need to rotate it multiple times, and the end of the valve core away from the valve body is connected to the external pipeline, that is, the personnel need to remove the pipeline from the valve core before rotating the valve core, which makes it still take a long time for personnel to replace the valve core. As a result, the above-mentioned technology cannot be used to conveniently clean the oil on the valve disc during use. Therefore, in order to solve the defect of the above-mentioned technology that the valve disc cannot be quickly cleaned due to the inability to quickly clean the oil on the valve disc, we propose a mechanical sealing device with a self-lubricating mechanism. Utility Model Content

[0004] The purpose of the utility model is to solve the shortcomings of the prior art and to propose a mechanical sealing device with a self-lubricating mechanism.

[0005] In order to achieve the above purpose, the present invention adopts the following technical solutions:

[0006] A mechanical sealing device with a self-lubricating mechanism includes a valve body, a valve disc is rotatably installed inside the valve body, a mounting plate is fixed to one end of the outer ring surface of the valve body, a branch pipe is installed on the upper wall of the valve body, both ends of the branch pipe pass through the interior of the valve body and face the two sides of the upper end of the valve disc, a liquid storage box for placing oil cleaning liquid is fixed on the lower side of the outer ring surface of the valve body, a pump is provided inside the liquid storage box, and the output end of the pump is connected to the branch pipe through a main pipe, and the main pipe is located on the rear side of the outside of the valve body.

[0007] Preferably, a water retaining block is fixed inside the valve body at one end of the air inlet, and the side of the water retaining block away from the valve plate is in an inclined state.

[0008] Preferably, a sealing plate is installed on the front side of the liquid storage box, and a liquid infusion tube is provided on the upper end of the sealing plate.

[0009] Preferably, the sealing plate is a transparent plate, and the end of the fluid infusion tube is provided with a dust cap.

[0010] Preferably, the end of the valve body away from the mounting plate is provided with a connecting protrusion for connecting to an external pipeline, and the end of the valve body away from the connecting protrusion is threadedly mounted with a flow guide cover, and the end of the flow guide cover located outside the valve body expands upward.

[0011] Preferably, a nozzle is installed at the end of the branch pipe located inside the valve body, and the branch pipe is a hard pipe.

[0012] Preferably, a sealing gasket is provided on the side of the mounting plate away from the branch pipe, and bolt holes are provided at the four corners of the mounting plate and the sealing gasket.

[0013] The utility model proposes a mechanical sealing device with a self-lubricating mechanism, which has the following beneficial effects:

[0014] 1: In the utility model, the oil cleaning liquid in the liquid storage box is directly sprayed onto the two side surfaces of the valve plate through a pump to dissolve and clean the oil on the surface of the valve plate, so that the valve plate can be restored to smoothness, that is, the phenomenon of the valve plate rotating jerky due to oil adhesion is solved. In this process, the pump can be set to start at a timer, so that the valve plate cleaning process does not require too much human participation, that is, the present solution can provide an automatic cleaning effect for the valve plate, thereby automatically maintaining the smoothness of the valve plate rotation. Compared with the traditional solution, when this solution is used, the oil cleaning liquid can be sprayed regularly to make the valve plate have a certain degree of self-lubricating effect, thereby effectively avoiding the phenomenon of the valve plate rotating jerky due to oil adhesion on the surface, that is, when this solution is used, the frequency of valve plate disassembly is effectively reduced, thereby effectively saving manpower, material resources and time costs.

[0015] 2: The setting of the water retaining block in the utility model prevents the waste liquid from entering the external range hood pipe along the valve body, thus avoiding the phenomenon that the waste liquid flows back into the range hood and causes damage thereto; the setting of the liquid replenishing pipe facilitates the replenishment of the oil cleaning liquid into the liquid storage box, and the setting of the sealing plate as a transparent plate facilitates personnel to observe the remaining amount of the oil cleaning liquid inside the liquid storage box so as to replenish it in time; the setting of the guide cover allows the waste liquid to fall directly into the flue along the edge of the guide cover when it flows along the inner wall of the valve body into the flue, thus avoiding the phenomenon that the waste liquid contacts the mounting plate along the outer wall of the valve body, thereby avoiding the phenomenon that the waste liquid erodes the components at the mounting plate; the setting of the nozzle allows the oil cleaning liquid to be evenly sprayed on both sides of the upper end of the valve plate; the setting of the sealing gasket improves the sealing between the mounting plate and the external flue wall. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 This is a schematic diagram from one perspective of a mechanical sealing device with a self-lubricating mechanism proposed by the present invention;

[0017] Figure 2 This is a schematic diagram from another perspective of a mechanical sealing device with a self-lubricating mechanism proposed by the present invention;

[0018] Figure 3 The utility model proposes a mechanical sealing device with a self-lubricating mechanism Figure 2 A is an enlarged schematic diagram;

[0019] Figure 4 This is a schematic diagram of the interior of a liquid storage box of a mechanical sealing device with a self-lubricating mechanism proposed by the present invention;

[0020] Figure 5 This is a structural schematic diagram of a mechanical sealing device with a self-lubricating mechanism proposed by the utility model.

[0021] In the figure: 1. Valve body; 2. Valve plate; 3. Mounting plate; 4. Branch pipe; 5. Liquid storage box; 6. Pump; 7. Main pipe; 8. Water retaining block; 9. Sealing plate; 10. Liquid replenishing pipe; 11. Connecting protrusion; 12. Guide cover; 13. Nozzle; 14. Sealing gasket. DETAILED DESCRIPTION

[0022] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments. Example 1

[0023] Reference Figure 1-5A mechanical sealing device with a self-lubricating mechanism includes a valve body 1, a valve disc 2 is rotatably installed inside the valve body 1, a mounting plate 3 is fixed to one end of the outer ring surface of the valve body 1, and the mounting plate 3 is used to connect to the external flue wall. A branch pipe 4 is installed on the upper wall of the valve body 1, and both ends of the branch pipe 4 pass through the interior of the valve body 1 and face the two sides of the upper end of the valve disc 2. A liquid storage box 5 for placing oil cleaning liquid is fixed on the lower side of the outer ring surface of the valve body 1, and a pump 6 is provided inside the liquid storage box 5. The output end of the pump 6 is connected to the branch pipe 4 through a main pipe 7, and the main pipe 7 is located on the rear side of the outside of the valve body 1. Example 2

[0024] Reference Figure 1-5 , while other parts are the same as those in Example 1, the difference between this embodiment and Example 1 is:

[0025] The valve body 1 is provided with a water retaining block 8 at one end of the air inlet, and the water retaining block 8 is inclined away from the side of the valve plate 2. The setting of the water retaining block 8 enables the branch pipe 4 to clean the oil stains on the surface of the valve plate 2, thereby ensuring the lubrication effect of the valve plate 2, that is, ensuring that the valve plate 2 rotates smoothly, the waste liquid flowing down will not follow the valve body 1 into the external range hood pipe, that is, the waste liquid follows the valve body 1 into the external flue, thereby avoiding the waste liquid from flowing back into the range hood and causing damage to it; a sealing plate 9 is installed on the front side of the liquid storage box 5, and a liquid replenishing pipe 10 is provided at the upper end of the sealing plate 9. The setting of the liquid replenishing pipe 10 is convenient for replenishing the oil cleaning liquid inside the liquid storage box 5. The plate body of the sealing plate 9 is a transparent plate body, and the end of the liquid replenishing pipe 10 is provided with a dustproof cap. The setting of the sealing plate 9 as a transparent plate body makes it convenient for personnel to observe the residual amount of oil cleaning liquid inside the liquid storage box 5, so as to replenish it in time.

[0026] The end of the valve body 1 away from the mounting plate 3 is provided with a connecting protrusion 11 for connecting to an external pipe. The end of the valve body 1 away from the connecting protrusion 11 is threadedly installed with a flow deflector 12. The flow deflector 12 is located at the end outside the valve body 1 and expands upward. The setting of the flow deflector 12 allows the waste liquid to flow along the inner wall of the valve body 1 into the flue and fall directly into the flue along the edge of the flow deflector 12, thereby avoiding the waste liquid from contacting the mounting plate 3 along the outer wall of the valve body 1, thereby avoiding the waste liquid from eroding the components of the mounting plate 3. The branch pipe 4 is located at the end of the valve body 1 and is equipped with a nozzle 13. The branch pipe 4 is a hard pipe. The setting of the nozzle 13 allows the oil cleaning liquid to be evenly sprayed on both sides of the upper end of the valve plate 2, which also reduces the waste of the oil cleaning liquid. The mounting plate 3 is provided with a sealing gasket 14 on the side away from the branch pipe 4. The mounting plate 3 and the sealing gasket 14 are provided with bolt holes at the four corners. The setting of the sealing gasket 14 improves the sealing between the mounting plate 3 and the external flue wall, thereby avoiding the phenomenon of smoke backflow in the external flue.

[0027] Principle and advantages of use: During use, the valve body 1 is installed on the wall of the external flue through the mounting plate 3, wherein the end of the valve body 1 extending into the flue is the air outlet end, and the end of the valve body 1 located outside the flue is the air inlet end, which is connected to the external range hood pipe, that is, the oil smoke gas sucked by the external range hood is transported into the valve body 1, and then transported into the flue after the valve plate 2 is opened. In this process, as the valve plate 2 is used, its surface gradually adheres to the oil smoke gas, and as the oil stains adhere to the surface of the valve plate 2 This causes the valve plate 2 to become stiff and unable to be flipped flexibly and promptly during use, which can easily cause the oil smoke gas to be blocked at the valve body 1 and unable to be discharged, or the gas in the external flue can flow smoothly back into the range hood. The traditional solution requires the valve core, i.e., the valve plate 2, to be disassembled at this time, and the valve plate 2 to be taken out from the valve body 1 for replacement or cleaning. This method requires a certain amount of time for disassembly and cleaning of the valve plate 2 in actual use, and requires personnel to operate it personally, resulting in a waste of manpower and material resources.

[0028] In the above process, when this solution is adopted, the oil cleaning liquid in the liquid storage box 5 is directly sprayed onto the two side surfaces of the valve plate 2 through the pump 6, so that the oil on its surface is dissolved and cleaned by the oil cleaning liquid, so that the valve plate 2 is restored to smoothness, that is, the phenomenon of the valve plate 2 rotating jerkily due to the adhesion of oil is solved. In this process, the pump 6 can be set to start at a timer, so that the valve plate 2 cleaning process does not require too much human participation, that is, the present solution can provide an automatic cleaning effect for the valve plate 2, thereby automatically maintaining the smoothness of the rotation of the valve plate 2. Compared with the traditional solution, when this solution is used, the valve plate 2 can have a certain degree of self-lubricating effect by regularly spraying the oil cleaning liquid, thereby effectively avoiding the phenomenon of the valve plate 2 rotating jerkily due to the adhesion of oil on the surface, that is, when this solution is used, the frequency of disassembly of the valve plate 2 is effectively reduced, thereby effectively saving manpower, material resources and time costs.

[0029] It should be further explained that the setting of the water retaining block 8 enables the branch pipe 4 to clean the oil stains on the surface of the valve plate 2, thereby ensuring the lubrication effect of the valve plate 2, that is, ensuring that when the valve plate 2 rotates smoothly, the waste liquid flowing down will not follow the valve body 1 into the external range hood pipe, that is, the waste liquid follows the valve body 1 into the external flue, thereby avoiding the waste liquid from flowing back into the range hood and causing damage thereto, and because the side of the water retaining block 8 away from the valve plate 2 is in an inclined state, the water retaining block 8 is avoided from causing significant interference to the flow rate of the oil smoke gas transported from the external range hood to the inside of the valve body 1; the setting of the liquid replenishing pipe 10 facilitates the replenishment of oil stains into the liquid storage box 5 The cleaning liquid is provided with a transparent sealing plate 9, which makes it easy for personnel to observe the remaining oil cleaning liquid in the liquid storage box 5 so as to replenish it in time; the provision of the deflector 12 allows the waste liquid to flow along the inner wall of the valve body 1 into the flue, and directly fall into the flue along the edge of the deflector 12, thereby avoiding the waste liquid from contacting the mounting plate 3 along the outer wall of the valve body 1, thereby avoiding the waste liquid from corroding the components of the mounting plate 3; the provision of the nozzle 13 allows the oil cleaning liquid to be evenly sprayed on both sides of the upper end of the valve plate 2; the provision of the sealing gasket 14 improves the sealing between the mounting plate 3 and the external flue wall.

[0030] The above is only a preferred specific implementation method of the present invention, but the protection scope of the present invention is not limited to this. Any technician familiar with the technical field within the technical scope disclosed by the present invention can make equivalent replacements or changes based on the technical solution and utility model concept of the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A mechanical sealing device with a self-lubricating mechanism, comprising a valve body (1), characterized in that: A valve disc (2) is rotatably mounted inside the valve body (1), a mounting plate (3) is fixed at one end of the outer ring surface of the valve body (1), a branch pipe (4) is mounted on the upper wall of the valve body (1), both ends of the branch pipe (4) pass through the interior of the valve body (1) and face both sides of the upper end of the valve disc (2), a liquid storage box (5) for storing oil cleaning liquid is fixed on the lower side of the outer ring surface of the valve body (1), a pump (6) is provided inside the liquid storage box (5), and the output end of the pump (6) is connected to the branch pipe (4) through a main pipe (7), and the main pipe (7) is located on the rear side of the exterior of the valve body (1).

2. A mechanical sealing device with a self-lubricating mechanism according to claim 1, characterized in that: A water retaining block (8) is fixed inside the valve body (1) at one end of the air inlet, and the side of the water retaining block (8) away from the valve plate (2) is in an inclined state.

3. The mechanical sealing device with a self-lubricating mechanism according to claim 1, characterized in that: A sealing plate (9) is installed on the front side of the liquid storage box (5), and a liquid infusion tube (10) is provided at the upper end of the sealing plate (9).

4. The mechanical sealing device with a self-lubricating mechanism according to claim 3, characterized in that: The sealing plate (9) is a transparent plate, and the end of the fluid infusion tube (10) is provided with a dust cap.

5. The mechanical sealing device with a self-lubricating mechanism according to claim 1, characterized in that: The end of the valve body (1) away from the mounting plate (3) is provided with a connection protrusion (11) for connecting to an external pipeline, and the end of the valve body (1) away from the connection protrusion (11) is threadedly mounted with a flow guide cover (12), and the end of the flow guide cover (12) located outside the valve body (1) expands upward.

6. The mechanical sealing device with a self-lubricating mechanism according to claim 1, characterized in that: The end of the branch pipe (4) located inside the valve body (1) is installed with a nozzle (13), and the branch pipe (4) is a hard pipe.

7. The mechanical sealing device with a self-lubricating mechanism according to claim 1, characterized in that: A sealing gasket (14) is provided on the side of the mounting plate (3) away from the branch pipe (4), and bolt holes are provided at the four corners of the mounting plate (3) and the sealing gasket (14).

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