Composite high-temperature-resistant screen

Abstract

The utility model discloses a composite high-temperature-resistant screen which comprises a screen body and an installation pipe arranged at an equipment port, and further comprises a telescopic assembly arranged on the installation pipe and used for providing a telescopic space for deformation of the screen body under temperature change, and the telescopic assembly comprises a telescopic hole formed in the side, close to the screen body, of the installation pipe. And the telescopic hole is connected with an end sealing ring in a sliding manner. Through the arrangement of the telescopic assembly, under the matching action of the fixing assembly, the installation sealing performance and firmness of the screen body are guaranteed, meanwhile, a telescopic space is provided for deformation of the screen body at the high temperature, and therefore the telescopic screen body adapts to the overall size change of the screen body under the temperature change; the accumulation of stress on the screen body is reduced, so that the risk that the screen body is broken due to stress concentration is further reduced, and the use stability of the screen body at high temperature is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of screen meshes, in particular to a composite high-temperature resistant screen mesh. Background Technique

[0002] The screen mesh body is successively provided with an upper anti-corrosion layer, an upper surface layer, an upper high-temperature resistant layer, an anti-static layer, a base layer, a lower high-temperature resistant layer, a lower surface layer and a lower anti-corrosion layer from top to bottom. Each layer is made by a hot pressing process of a hot pressing composite machine. Glue is applied while hot pressing, and the composite between adjacent layers is achieved by heat and pressure. Finally, the screen mesh body is obtained, so that the screen mesh has multiple functions such as anti-corrosion and anti-static while having a certain temperature resistance.

[0003] For the screen mesh installed at the port of precision equipment, bolts and pins are often used for fixed connection. Although the sealing and firmness of the screen mesh installation are ensured, however, the screen mesh used at high temperature will expand and contract thermally, resulting in changes in the size and shape of the screen mesh. The fixed installation makes it difficult to adapt to the overall size change caused by temperature change, and it is easy to cause stress concentration and fracture, thereby reducing the stability of the screen mesh used at high temperature.

[0004] Therefore, there is an urgent need for a composite high-temperature resistant screen mesh to solve the above problems. Content of the Utility Model

[0005] The purpose of the utility model is to provide a composite high-temperature resistant screen mesh to solve the problem that the fixed installation in the above background technique makes it difficult to adapt to the overall size change caused by temperature change and is easy to cause stress concentration and fracture.

[0006] [[ID=2,2]]To achieve the above purpose, the utility model provides the following technical solution: A composite high-temperature resistant screen mesh, including a screen mesh body and an installation pipe arranged at the equipment port, and further including a telescopic assembly arranged on the installation pipe for providing a telescopic space for the deformation of the screen mesh body under temperature change;

[0007] The telescopic assembly includes a telescopic hole opened on one side of the installation pipe close to the screen mesh body, the telescopic hole is slidably connected with an end sealing ring, the end sealing ring is provided with a fixing assembly for fixing the screen mesh body, the bottom wall of the telescopic hole is fixedly connected with a plurality of telescopic pipes, each telescopic pipe is slidably connected with a telescopic rod, one end of each telescopic rod is connected with the end sealing ring, the other end of each telescopic rod is located inside the telescopic pipe and is fixedly connected with a telescopic plate, a telescopic spring is sleeved on the inner side wall of each telescopic rod inside the telescopic pipe, and both ends of each telescopic spring are respectively connected with the telescopic plate and the inner wall of the telescopic pipe.

[0008] A side wall sealing ring is arranged on one side of the end sealing ring close to the screen mesh body.

[0009] One side of the side wall sealing ring away from the end sealing ring is chamfered.

[0010] The fixing component includes a plurality of fixing tubes fixedly connected to one side of the end sealing ring close to the screen body. A sliding plate is arranged in each fixing tube through a guiding component. U-shaped plates are fixedly connected to opposite sides of each sliding plate. A rotating plate is connected to the two U-shaped plates through a rotating shaft. A torsion spring is arranged on the side wall of the rotating shaft. Each fixing tube is provided with a driving component for driving the two rotating plates. Two through holes are formed in the side wall of each fixing tube, and the two through holes are arranged in a matching manner with the rotating plate. A plurality of fixing holes are formed in the side wall of the screen body, and each fixing hole is arranged in a matching manner with the fixing tube.

[0011] The guiding component includes two symmetrically arranged guiding grooves formed in the inner wall of the fixing tube. The two guiding grooves are slidably connected with a guiding plate, and opposite ends of the two guiding plates are connected to the sliding plate.

[0012] The driving component includes a threaded rod rotatably connected in the fixing tube. The sliding plate is threadedly connected to the threaded rod. One end of the threaded rod away from the end sealing ring penetrates through the fixing tube and is fixedly connected with a rotating handle.

[0013] Compared with the prior art, the beneficial effects of the present utility model are as follows:

[0014] Through the arrangement of the telescopic component and in cooperation with the fixing component, the present utility model ensures the installation tightness and firmness of the screen body, provides a telescopic space for the deformation of the screen body at high temperature, thereby adapting to the overall dimensional change of the screen body under temperature change, reducing the accumulation of stress on the screen body, further reducing the risk of fracture of the screen body due to stress concentration, and improving the stability of the screen body when used at high temperature. Description of the Drawings

[0015] Figure 1 is a schematic diagram of the overall structure of the present utility model;

[0016] Figure 2 is a schematic diagram of the internal structure of the telescopic component of the present utility model;

[0017] Figure 3 is Figure 2 the enlarged view at A in

[0018] Figure 4 is a schematic diagram of the end sealing ring and the side wall sealing ring of the present utility model;

[0019] Figure 5 is a schematic diagram of the internal structure of the fixing component of the present utility model.

[0020] In the figure: 101, screen body; 102, installation pipe; 201, telescopic hole; 202, end sealing ring; 203, telescopic pipe; 204, telescopic rod; 205, telescopic plate; 206, telescopic spring; 207, side wall sealing ring; 208, bevel angle; 401, fixed pipe; 402, sliding plate; 403, U-shaped plate; 404, rotating shaft; 405, rotating plate; 406, through hole; 407, fixing hole; 501, guiding groove; 502, guiding plate; 601, threaded rod; 602, rotating handle. Detailed implementation mode

[0021] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0022] Embodiment 1

[0023] Please refer to Figures 1-5 , a composite high-temperature resistant screen shown in the figure, including a screen body 101 and an installation pipe 102 arranged at the equipment port, and further including a telescopic component arranged on the installation pipe 102 for providing a telescopic space for the deformation of the screen body 101 under temperature changes;

[0024] The telescopic component includes a telescopic hole 201 opened on the side of the installation pipe 102 close to the screen body 101. The telescopic hole 201 is slidably connected with an end sealing ring 202. The end sealing ring 202 is provided with a fixing component for fixing the screen body 101. The bottom wall of the telescopic hole 201 is fixedly connected with a plurality of telescopic pipes 203. Each telescopic pipe 203 is slidably connected with a telescopic rod 204. One end of each telescopic rod 204 is connected to the end sealing ring 202. The other end of each telescopic rod 204 is located inside the telescopic pipe 203 and is fixedly connected with a telescopic plate 205. A telescopic spring 206 is sleeved on the inner side wall of each telescopic rod 204 inside the telescopic pipe 203. The two ends of each telescopic spring 206 are respectively connected to the telescopic plate 205 and the inner wall of the telescopic pipe 203;

[0025] It should be noted here that: through the setting of the telescopic component, under the cooperation of the fixing component, while ensuring the installation tightness and firmness of the screen body 101, a telescopic space is provided for the deformation of the screen body 101 at high temperature, so as to adapt to the overall size change of the screen body 101 under temperature changes, reduce the accumulation of stress on the screen body 101, and further reduce the risk of fracture of the screen body 101 due to stress concentration, and improve the stability of the screen body 101 when used at high temperature.

[0026] Please refer to Figures 2-4 , on the side of the end sealing ring 202 close to the screen body 101 in the figure, there is a side wall sealing ring 207;

[0027] It should be noted here that: through the setting of the side wall sealing ring 207, it is used for sealing between the screen body 101 and the side wall of the installation pipe 102, and at the same time provides a telescopic space for the side deformation of the screen body 101.

[0028] It is worth noting that: the end sealing ring 202 and the side wall sealing ring 207 are made of polytetrafluoroethylene with high temperature resistance and chemical stability, so that the end sealing ring 202 and the side wall sealing ring 207 have a certain hardness and toughness at the same time.

[0029] Please refer to Figures 2-4 , on the side of the side wall sealing ring 207 away from the end sealing ring 202 in the figure, there is an inclined angle 208;

[0030] It should be noted here that: through the setting of the inclined angle 208, it provides guidance for the installation of the screen body 101, thus providing convenience for the installation of the screen body 101.

[0031] Working principle: The screen body 101 is successively provided with an upper anti-corrosion layer, an upper surface layer, an upper high-temperature resistant layer, an anti-static layer, a base layer, a lower high-temperature resistant layer, a lower surface layer and a lower anti-corrosion layer from top to bottom. Each layer is made by the hot pressing process of a hot pressing composite machine, applying glue and hot pressing at the same time, and realizing the composite between adjacent layers by heat and pressure. Finally, the screen body 101 is obtained, so that the screen body 101 has certain temperature resistance performance while also having multiple functions such as anti-corrosion and anti-static;

[0032] When the screen body 101 is in use, first, the screen body 101 is installed and fixed on the end sealing ring 202 in the telescopic hole 201 by using the fixing component. After the installation of the screen body 101 is completed, it can be used to filter the gas at the equipment port, so as to ensure the cleanliness of the gas entering the equipment. During the use of the screen body 101, due to the gas temperature and the heat generated by the operation of the equipment, the screen body 101 deforms due to thermal expansion and contraction. During the deformation of the screen body 101, under the flexible deformation of the end sealing ring 202 and the side wall sealing ring 207, a telescopic space is provided for the deformation of the screen body 101, adapting to the overall dimensional change of the screen body 101 under temperature change, reducing the accumulation of stress on the screen body 101, and further reducing the risk of fracture of the screen body 101 due to stress concentration, improving the stability of the screen body 101 when used at high temperature. At the same time, under the elastic abutting action of the telescopic spring 206, using the sealing action of the end sealing ring 202 and the side wall sealing ring 207, the sealing between the screen body 101 and the installation pipe 102 is ensured.

[0033] Embodiment 2

[0034] Please refer to Figure 5 , this embodiment further illustrates Embodiment 1. The fixing component shown in the figure includes a plurality of fixing pipes 401 fixedly connected to the side of the end sealing ring 202 close to the screen body 101. A sliding plate 402 is arranged in each fixing pipe 401 through a guiding component. U-shaped plates 403 are fixedly connected to the opposite sides of each sliding plate 402. A rotating plate 405 is connected to the two U-shaped plates 403 through a rotating shaft 404. A torsion spring is arranged on the side wall of the rotating shaft 404. Each fixing pipe 401 is provided with a driving component for driving the two rotating plates 405. Two through holes 406 are opened on the side wall of each fixing pipe 401. The two through holes 406 are arranged in a matching manner with the rotating plate 405. A plurality of fixing holes 407 are opened on the side wall of the screen body 101, and each fixing hole 407 is arranged in a matching manner with the fixing pipe 401;

[0035] It should be noted here that: through the setting of the fixing component, when installing the screen body 101, first align the screen body 101 with the installation pipe 102, then push the screen body 101 to move closer to the installation pipe 102, and make the fixing pipe 401 insert into the fixing hole 407 on the screen body 101. When one end of the screen body 101 abuts against the end sealing ring 202, the driving component is used to drive the sliding plate 402 to move in the fixing pipe 401;

[0036] During the movement of the sliding plate 402, the rotating plates 405 on both sides will be driven to move synchronously. When the two rotating plates 405 coincide with the through holes 406, under the elastic action of the torsion springs, the two rotating plates 405 will be driven to rotate away from each other. With the continuous movement of the sliding plate 402, when the two rotating plates 405 rotate to the horizontal state, under the blocking action of the U-shaped plate 403, they will not rotate anymore. At this time, the two rotating plates 405 will continue to move closer to the screen body 101 while maintaining the horizontal state. When the end faces of the two rotating plates 405 abut against the screen body 101, the movement of the sliding plate 402 is stopped, and thus, by the abutting action of the two rotating plates 405, the installation and fixation of the screen body 101 are realized;

[0037] When it is necessary to disassemble the screen body 101, the driving component is used to drive the sliding plate 402 to move reversely in the fixed tube 401, further driving the two rotating plates 405 to move away from the screen body 101. When the side walls of the two rotating plates 405 abut against the inner walls of the through holes 406, under the driving force, the two rotating plates 405 will be pushed to rotate towards each other. Thus, during the continuous movement of the sliding plate 402 away from the screen body 101, the two rotating plates 405 will be driven to contract into the fixed tube 401. Thus, while releasing the fixation of the screen body 101, it is convenient to disassemble the screen body 101. Thus, under the action of the fixing component, not only the firmness of the fixation of the screen body 101 is ensured, but also the convenience of disassembling the screen body 101 is improved. At the same time, the fixing component and the end sealing ring 202 are integrally designed without separate scattered parts, thus avoiding the loss of fixing parts.

[0038] Please refer to Figure 5 , in the figure, the guiding component includes two symmetrically arranged guiding grooves 501 opened on the inner wall of the fixed tube 401. Two guiding plates 502 are slidably connected to the two guiding grooves 501, and one end of the two guiding plates 502 facing each other is connected to the sliding plate 402;

[0039] It should be noted here that: through the setting of the guiding component, it provides guiding and resetting functions for the movement of the sliding plate 402.

[0040] Please refer to Figure 5 , in the figure, the driving component includes a threaded rod 601 rotatably connected in the fixed tube 401. The sliding plate 402 is threadedly connected to the threaded rod 601. One end of the threaded rod 601 far from the end sealing ring 202 penetrates through the fixed tube 401 and is fixedly connected with a rotating handle 602;

[0041] It should be noted here that: through the setting of the driving component, by rotating the rotating handle 602, the threaded rod 601 is driven to rotate. Thus, under the action of the threaded meshing transmission between the threaded rod 601 and the sliding plate 402 and the guiding action of the guiding component, the sliding plate 402 will be driven to move within the fixed tube 401.

[0042] For those skilled in the art, it is obvious that the present utility model is not limited to the details of the above exemplary embodiments, and can be implemented in other specific forms without departing from the spirit or basic characteristics of the present utility model. Therefore, from any point of view, the embodiments should be regarded as exemplary and non-limiting. The scope of the present utility model is defined by the appended claims rather than the above description. Therefore, all changes falling within the meaning and scope of the equivalent elements of the claims are intended to be included in the present utility model. Any reference signs in the claims should not be regarded as limiting the claims involved.

Claims

1. A composite high-temperature resistant screen, comprising: a screen body (101) and an installation pipe (102) arranged at the equipment port; characterized in that it further comprises: a telescopic component arranged on the installation pipe (102) to provide a telescopic space for the deformation of the screen body (101) under temperature changes; The telescopic component includes a telescopic hole (201) opened on the side of the installation pipe (102) close to the screen body (101), the telescopic hole (201) is slidably connected with an end sealing ring (202), the end sealing ring (202) is provided with a fixing component for fixing the screen body (101), the bottom wall of the telescopic hole (201) is fixedly connected with a plurality of telescopic pipes (203), each telescopic pipe (203) is slidably connected with a telescopic rod (204), one end of each telescopic rod (204) is connected with the end sealing ring (202), the other end of each telescopic rod (204) is located in the telescopic pipe (203) and is fixedly connected with a telescopic plate (205), a telescopic spring (206) is sleeved on the inner side wall of each telescopic rod (204) located in the telescopic pipe (203), and both ends of each telescopic spring (206) are respectively connected with the telescopic plate (205) and the inner wall of the telescopic pipe (203).

2. The composite high-temperature resistant screen mesh according to claim 1, characterized in that: One side of the end sealing ring (202) close to the screen body (101) is provided with a side wall sealing ring (207).

3. The composite high-temperature resistant screen mesh according to claim 2, characterized in that: One side of the side wall sealing ring (207) away from the end sealing ring (202) is provided with an inclined angle (208).

4. The composite high-temperature resistant screen mesh according to claim 1, wherein: The fixing component includes a plurality of fixing pipes (401) fixedly connected to the side of the end sealing ring (202) close to the screen body (101), a sliding plate (402) is arranged in each fixing pipe (401) through a guiding component, U-shaped plates (403) are fixedly connected to the opposite sides of each sliding plate (402), a rotating plate (405) is connected between the two U-shaped plates (403) through a rotating shaft (404), a torsion spring is arranged on the side wall of the rotating shaft (404), each fixing pipe (401) is provided with a driving component for driving the two rotating plates (405), two through holes (406) are opened on the side wall of each fixing pipe (401), the two through holes (406) are arranged in a matching manner with the rotating plate (405), and a plurality of fixing holes (407) are opened on the side wall of the screen body (101), and each fixing hole (407) is arranged in a matching manner with the fixing pipe (401).

5. The composite high-temperature resistant screen mesh according to claim 4, wherein: The guiding component includes two symmetrically arranged guiding grooves (501) opened on the inner wall of the fixing pipe (401), the two guiding grooves (501) are slidably connected with a guiding plate (502), and one end of the two guiding plates (502) opposite to each other is connected with the sliding plate (402).

6. The composite high-temperature resistant screen mesh according to claim 4, characterized in that: The driving component includes a threaded rod (601) rotatably connected in the fixing pipe (401), the sliding plate (402) is threadedly connected to the threaded rod (601), and one end of the threaded rod (601) away from the end sealing ring (202) penetrates through the fixing pipe (401) and is fixedly connected with a rotating handle (602).

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