Self-sealing plug door

Abstract

The utility model discloses a kind of self-sealing plug-in door, including shell, the shell includes valve seat and plug-in cavity;Still including pressing device;The plug-in plate is provided in the shell, and the plug-in plate is connected with transmission device;Sealing element is provided in the plug-in cavity;The pressing device is used to press the plug-in plate in plug-in cavity after the plug-in plate is closed.The utility model does not need special driving mechanism to press the plug-in plate, can guarantee that plug-in door has good sealing property, simple structure, reduces production cost.

Description

Technical Field

[0001] This utility model relates to the field of waste gas treatment technology, specifically to a self-sealing insert door. Background Technology

[0002] The core function of a slide gate is to obstruct and isolate the flow of fluids or media through the movement of slide plates. It is indispensable in industries such as thermal power plants, chemical plants, and heating systems, and is often installed in critical locations such as boiler hot and cold air ducts and flue gas pipelines to ensure safety during boiler equipment switching and maintenance, while preventing the leakage of hazardous media such as toxic or high-temperature flue gases. With increasingly stringent environmental requirements and improved industrial production efficiency, industrial settings not only require slide gates to perform basic on / off functions, but also demand "zero leakage" sealing performance to reduce energy waste, prevent environmental pollution, and ensure personnel safety.

[0003] To ensure good sealing performance, existing sliding door systems require a matching actuator, which results in complex structures and high costs. Utility Model Content

[0004] To address the aforementioned issues, this invention provides a self-sealing slide gate that eliminates the need for a dedicated drive mechanism to press the slide gate, thus ensuring excellent sealing performance. The structure is simple and reduces production costs.

[0005] To achieve the above objectives, the technical solution adopted by this utility model is as follows: a self-sealing insert door, comprising a housing, the housing including a valve seat and an insert cavity; further comprising a pressing device; an insert plate is provided inside the housing, the insert plate being connected to a transmission device; a sealing element is provided inside the insert cavity; the pressing device is used to press the insert plate into the insert cavity after the insert plate is closed.

[0006] As a preferred technical solution of this utility model: the pressing device includes at least one set of cams disposed on the insert plate cavity; the insert plate is provided with a pressure plate that matches the cams; the cams and the pressure plate cause the insert plate and the sealing element to fit together after the insert plate is closed.

[0007] As a preferred technical solution of this utility model, the cam has four sets.

[0008] As a preferred technical solution of this utility model: the transmission device includes an opening and closing actuator disposed at the top of the insert plate cavity; a lead screw is disposed on the insert plate cavity, and the opening and closing actuator is connected to the lead screw; a nut seat is disposed on the lead screw; a connecting rod is disposed on the nut seat, and the connecting rod is connected to the insert plate.

[0009] As a preferred technical solution of this utility model, the valve seat is provided with at least one set of drain ports.

[0010] As a preferred technical solution of this utility model, the material of the sealing element is polytetrachloroethylene.

[0011] This utility model has the following beneficial effects:

[0012] The clamping device eliminates the need for a dedicated drive mechanism to clamp the insert plate, thus ensuring good sealing performance of the insert door. Its simple structure reduces production costs. Attached Figure Description

[0013] Figure 1 This is a top view of the overall structure of this utility model;

[0014] Figure 2 This is a left view of the overall structure of this utility model;

[0015] Figure 3 This is a side view of the overall structure of this utility model;

[0016] Figures 1-3 In the middle, 1. housing; 2. valve seat; 3. slide plate cavity; 4. clamping device; 5. slide plate; 6. transmission device; 7. seal; 8. drain outlet; 9. cam; 10. pressure plate; 11. opening and closing actuator; 12. lead screw; 13. nut seat; 14. connecting rod. Detailed Implementation

[0017] To make the objectives and advantages of this utility model clearer, the present utility model will be further described in detail below with reference to embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present utility model and are not intended to limit the present utility model.

[0018] like Figures 1-3 As shown, this utility model embodiment provides a self-sealing slide gate, including a housing 1, which includes a valve seat 2 and a slide cavity 3; it also includes a pressing device 4; a slide 5 is disposed inside the housing 1, and the slide 5 is connected to a transmission device 6; a sealing element 7 is disposed inside the slide cavity 3, preferably made of nitrile rubber, polytetrachloroethylene, or other materials, preferably high-temperature resistant polytetrachloroethylene; the valve seat 2 is provided with at least one set of drain outlets 8; the pressing device 4 is used to press the slide 5 into the slide cavity 3 after the slide 5 is closed. After the transmission device 6 drives the slide 5 to close, the pressing device 4 tightly fits the slide 5 with the sealing element 7, so that after the slide gate is closed, no special drive mechanism is needed to press the slide, thus ensuring good sealing performance of the slide gate. The structure is simple and reduces production costs. The preferred material for the insert plate 5 is Q235+2205, meaning that the part in contact with the flue gas is made of 2205 material with better corrosion resistance, while the part not in contact with the flue gas is made of Q235 material with lower price, thus reducing the cost of use while meeting the actual requirements of on-site use.

[0019] The transmission device 6 includes an opening / closing actuator 11 disposed at the top of the slide plate cavity 3; a lead screw 12 is disposed on the slide plate cavity 3, and the opening / closing actuator 11 is connected to the lead screw 12; a nut seat 13 is disposed on the lead screw 12; a connecting rod 14 is disposed on the nut seat 13, and the connecting rod 14 is connected to the slide plate 5. The opening / closing actuator 11 drives the lead screw 12 to rotate, thereby driving the nut seat 13 to move along the direction of the lead screw 12, and then drives the slide plate 5 to move through the connecting rod 14. The pressing device 4 includes at least one set of cams 9 disposed on the slide plate cavity 3; a pressure plate 10 is disposed on the slide plate 5 to match the cams 9; in this embodiment, preferably there are four sets of cams 9, and four sets of pressure plates 10 corresponding to them. The transmission device 6 drives the slide plate 5 to move within the valve seat 2, causing the cams 9 to push up the pressure plates 10. After the slide plate 5 is closed, the cams 9 and the pressure plates 10 make the slide plate 5 and the sealing element 7 fit together, achieving a self-sealing effect.

[0020] In the description of this utility model, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicating orientation or positional relationships, are based on the orientation or positional relationships shown in the accompanying drawings and are only for the convenience of describing this utility model and simplifying the description. They do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation on this utility model. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance. In the description of this utility model, it should be noted that unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0021] The above description is only a preferred embodiment of the present utility model. It should be noted that for those skilled in the art, several improvements and modifications can be made without departing from the principle of the present utility model, and these improvements and modifications should also be considered within the protection scope of the present utility model.

Claims

1. A self-sealing slide gate, comprising a housing (1), the housing (1) including a valve seat (2) and a slide chamber (3); characterized in that: It also includes a pressing device (4); a insert plate (5) is provided inside the housing (1), and the insert plate (5) is connected to the transmission device (6); a sealing element (7) is provided inside the insert plate cavity (3); the pressing device (4) is used to press the insert plate (5) into the insert plate cavity (3) after the insert plate (5) is closed.

2. The self-sealing slide gate door according to claim 1, characterized in that: The pressing device (4) includes at least one set of cams (9) disposed on the insert plate cavity (3); the insert plate (5) is provided with a pressure plate (10) that matches the cams (9); the cams (9) and the pressure plate (10) make the insert plate (5) and the seal (7) fit together after the insert plate (5) is closed.

3. A self-sealing insert door according to claim 2, characterized in that: The cam (9) has four sets.

4. A self-sealing slide gate door according to claim 1, characterized in that: The transmission device (6) includes an opening and closing actuator (11) disposed at the top of the insert cavity (3); a lead screw (12) is disposed on the insert cavity (3), and the opening and closing actuator (11) is connected to the lead screw (12); a nut seat (13) is disposed on the lead screw (12); a connecting rod (14) is disposed on the nut seat (13), and the connecting rod (14) is connected to the insert plate (5).

5. A self-sealing slide gate door according to any one of claims 1-4, characterized in that: The valve seat (2) is provided with at least one set of drain outlets (8).

6. A self-sealing insert door according to claim 5, characterized in that: The sealing element (7) is made of polytetrachloroethylene.

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