High-temperature hard-sealing zero-leakage baffle

Abstract

The utility model discloses a high-temperature hard-seal zero-leakage baffle plate, which belongs to the technical field of flue gas ducts and comprises a baffle plate main body and a sealing plate, the baffle plate main body comprises a first plate body, a first sealing groove and a first bulge, and the first sealing groove is arranged on the lower surface of the first plate body; according to the utility model, the first bulge is clamped in the second sealing groove, the second bulge is clamped in the first sealing groove, and the first sealing groove, the second sealing groove, the first bulge and the second bulge are all circular; the first protrusion and the second sealing groove are matched with the second protrusion and the first sealing groove, double sealing can be conducted on the gap between the baffle body and the sealing plate, the good sealing effect is achieved between the baffle body and the sealing plate, and the leakage rate is zero. And the first bulge, the first sealing groove, the second bulge and the second sealing groove are all made of hard materials, so that the sealing structure is not easy to deform at high temperature, and a good sealing effect is ensured.

Description

Technical Field

[0001] The utility model belongs to the technical field of flue ducts, and particularly relates to a high-temperature hard-sealing zero-leakage baffle. Background Art

[0002] High-temperature hard-sealing zero-leakage baffles are widely used in various devices in petrochemical, metallurgical, and environmental protection projects.

[0003] The existing sealing methods of the baffle are divided into the following types:

[0004] 1. The valve seat and the valve plate overlap, and its leakage rate can only reach 1%;

[0005] 2. Soft sealing materials are wrapped on the valve plate and then overlapped, and its leakage rate is 0.5%. However, after long-term use, it is easy to age and fall off;

[0006] 3. A thin steel sheet is added to the valve plate, and its leakage rate is 0.5%. And it is easy to deform at high temperatures;

[0007] However, the sealing effects of these three methods are not good. Therefore, a high-temperature hard-sealing zero-leakage baffle is needed to solve the above problems. Content of the Utility Model

[0008] The purpose of the utility model is to provide a high-temperature hard-sealing zero-leakage baffle to solve the problems raised in the above background art.

[0009] To achieve the above purpose, the utility model provides the following technical solution: A high-temperature hard-sealing zero-leakage baffle, including a baffle main body and a sealing plate. The baffle main body includes a first plate body, a first sealing groove, and a first protrusion. The first sealing groove is opened on the lower surface of the first plate body, and the first protrusion is connected to the lower surface of the first plate body. The sealing plate includes a second plate body, a second protrusion, and a second sealing groove. The second protrusion is connected to the upper surface of the second plate body, and the second sealing groove is opened on the upper surface of the second plate body. The second protrusion is clamped in the first sealing groove, and the first protrusion is clamped in the second sealing groove.

[0010] By setting the above structure, when the baffle needs to be used, the first protrusion is clamped in the second sealing groove, and the second protrusion is clamped in the first sealing groove. And the first sealing groove, the second sealing groove, the first protrusion, and the second protrusion are all set to be circular. The cooperation between the first protrusion and the second sealing groove and the second protrusion and the first sealing groove can double-seal the gap between the baffle main body and the sealing plate, so that there is a good sealing effect between the baffle main body and the sealing plate, and its leakage rate is zero. And because the first protrusion, the first sealing groove, the second protrusion, and the second sealing groove are all made of hard materials, it is not easy to deform at high temperatures, ensuring a good sealing effect.

[0011] As a preferred embodiment, the cross-sectional shape of the first sealing groove is set to a semicircle, and the shape of the first sealing groove is set to a circle.

[0012] As a preferred embodiment, the cross-sectional shape of the second sealing groove is set to a semicircle, and the shape of the second sealing groove is set to a circle.

[0013] As a preferred embodiment, the cross-sectional shape of the first protrusion is set to a semicircle, and the shape of the first protrusion is set to an annular shape.

[0014] As a preferred embodiment, the cross-sectional shape of the second protrusion is set to a semicircle, and the shape of the second protrusion is set to an annular shape.

[0015] As a preferred embodiment, a valve body is connected to the outside of the second plate body, and the first plate body is arranged inside the valve body.

[0016] Compared with the prior art, the beneficial effects of the present utility model are as follows:

[0017] In the present utility model, by providing the first protrusion, the first sealing groove, the second protrusion, the second sealing groove, the first plate body and the second plate body, when the baffle needs to be used, the first protrusion is clamped in the second sealing groove, and the second protrusion is clamped in the first sealing groove. Moreover, the first sealing groove, the second sealing groove, the first protrusion and the second protrusion are all set to be circular. The first protrusion and the second sealing groove cooperate with the second protrusion and the first sealing groove to double-seal the gap between the baffle main body and the sealing plate, so that there is a good sealing effect between the baffle main body and the sealing plate, and its leakage rate is zero. And because the first protrusion, the first sealing groove, the second protrusion and the second sealing groove are all made of hard materials, they are not easily deformed at high temperatures, ensuring a good sealing effect.

[0018] In the present utility model, by providing the first protrusion, the first sealing groove, the second protrusion and the second sealing groove, since the first sealing structure formed by the cooperation of the first protrusion and the second sealing groove and the second sealing structure formed by the cooperation of the second protrusion and the first sealing groove are arranged alternately, this structure further improves the sealing effect of the baffle. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 is a schematic perspective view of the front view of the present utility model;

[0020] Figure 2 is a schematic cross-sectional view of the front perspective view of the present utility model;

[0021] Figure 3 is the present utility model Figure 2 The enlarged schematic view of the structure at A in.

[0022] In the figure: 1. Baffle main body; 101. First plate body; 102. First sealing groove; 103. First protrusion; 2. Sealing plate; 201. Second plate body; 202. Second protrusion; 203. Second sealing groove; 3. Valve body. Specific embodiments

[0023] The following further describes the present utility model in conjunction with embodiments.

[0024] The following embodiments are used to illustrate the present utility model, but cannot be used to limit the protection scope of the present utility model. The conditions in the embodiments can be further adjusted according to specific conditions. Any simple improvement of the method of the present utility model under the premise of the concept of the present utility model belongs to the scope protected by the present utility model.

[0025] Please refer to Figures 1-3 , the present utility model provides a high-temperature hard-sealed zero-leakage baffle, including a baffle main body 1 and a sealing plate 2. The baffle main body 1 includes a first plate body 101, a first sealing groove 102 and a first protrusion 103. The first sealing groove 102 is opened on the lower surface of the first plate body 101, and the first protrusion 103 is connected to the lower surface of the first plate body 101. The sealing plate 2 includes a second plate body 201, a second protrusion 202 and a second sealing groove 203. The second protrusion 202 is connected to the upper surface of the second plate body 201, and the second sealing groove 203 is opened on the upper surface of the second plate body 201. The second protrusion 202 is clamped in the first sealing groove 102, and the first protrusion 103 is clamped in the second sealing groove 203. The cross-sectional shape of the first sealing groove 102 is set as a semi-circle, the shape of the first sealing groove 102 is set as a circle, the cross-sectional shape of the second sealing groove 203 is set as a semi-circle, the shape of the second sealing groove 203 is set as a circle, the cross-sectional shape of the first protrusion 103 is set as a semi-circle, the shape of the first protrusion 103 is set as an annular shape, the cross-sectional shape of the second protrusion 202 is set as a semi-circle, and the shape of the second protrusion 202 is set as an annular shape. By providing the first protrusion 103, the first sealing groove 102, the second protrusion 202 and the second sealing groove 203, since the first sealing structure formed by the mutual cooperation of the first protrusion 103 and the second sealing groove 203 and the second sealing structure formed by the mutual cooperation of the second protrusion 202 and the first sealing groove 102 are arranged in an alternating manner, this structure further improves the sealing effect of the baffle;

[0026] The second plate body 201 is externally connected with a valve body 3, and the first plate body 101 is arranged inside the valve body 3;

[0027] By setting the above structure, when the baffle needs to be used, the first protrusion 103 is clamped in the second sealing groove 203, the second protrusion 202 is clamped in the first sealing groove 102, and the first sealing groove 102, the second sealing groove 203, the first protrusion 103 and the second protrusion 202 are all circular. The first protrusion 103 and the second sealing groove 203 cooperate with the second protrusion 202 and the first sealing groove 102 to double-seal the gap between the baffle main body 1 and the sealing plate 2, so that there is a good sealing effect between the baffle main body 1 and the sealing plate 2, and its leakage rate is zero. Moreover, since the first protrusion 103, the first sealing groove 102, the second protrusion 202 and the second sealing groove 203 are all made of hard materials, they are not easily deformed at high temperatures, ensuring a good sealing effect.

[0028] The working principle and usage process of the present utility model: When the baffle needs to be used, the first protrusion 103 is clamped in the second sealing groove 203, the second protrusion 202 is clamped in the first sealing groove 102, and the first protrusion 103 and the second sealing groove 203 cooperate with the second protrusion 202 and the first sealing groove 102 to double-seal the gap between the baffle main body 1 and the sealing plate 2.

[0029] Although the embodiments of the present utility model have been shown and described, for those of ordinary skill in the art, it can be understood that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principle and spirit of the present utility model. The scope of the present utility model is defined by the appended claims and their equivalents.

Claims

1. A high-temperature hard-sealed zero-leakage baffle, comprising a baffle body (1) and a sealing plate (2), characterized in that: The baffle body (1) comprises a first plate body (101), a first sealing groove (102) and a first protrusion (103); the first sealing groove (102) is provided on the lower surface of the first plate body (101); the first protrusion (103) is connected to the lower surface of the first plate body (101); the sealing plate (2) comprises a second plate body (201), a second protrusion (202) and a second sealing groove (203); the second protrusion (202) is connected to the upper surface of the second plate body (201); the second sealing groove (203) is provided on the upper surface of the second plate body (201); the second protrusion (202) is snap-fitted into the first sealing groove (102); and the first protrusion (103) is snap-fitted into the second sealing groove (203).

2. A high temperature hard seal zero leakage baffle according to claim 1, characterized in that: The cross-sectional shape of the first sealing groove (102) is set to be semicircular, and the shape of the first sealing groove (102) is set to be circular.

3. A high temperature hard seal zero leakage baffle according to claim 1, characterized in that: The cross-sectional shape of the second sealing groove (203) is set to be semicircular, and the shape of the second sealing groove (203) is set to be circular.

4. A high temperature hard seal zero leakage baffle according to claim 1, characterized in that: The cross-sectional shape of the first protrusion (103) is set to be a semicircle, and the shape of the first protrusion (103) is set to be a circular ring.

5. The high temperature hard seal zero leakage baffle according to claim 1, characterized in that: The cross-sectional shape of the second protrusion (202) is set to be a semicircle, and the shape of the second protrusion (202) is set to be a circular ring.

6. A high temperature hard seal zero leakage baffle according to claim 1, characterized in that: The second plate body (201) is externally connected to a valve body (3), and the first plate body (101) is arranged inside the valve body (3).

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