Stop valve for high-temperature and high-pressure power station

Abstract

The utility model relates to the technical field of valves, and discloses a high-temperature and high-pressure power station stop valve which comprises a stop valve body, and a protection mechanism is arranged outside a control structure of the stop valve body. The protection mechanism comprises a first half protection cover and a second half protection cover, a first connecting plate is fixedly installed on the outer wall of the first half protection cover, a second connecting plate is fixedly installed on the outer wall of the second half protection cover, a positioning column is fixedly installed on the inner side of the first connecting plate, and a column hole is formed in the second connecting plate. The first semi-protective cover and the second semi-protective cover can protect the control structure of the stop valve body, abrasion of threads in the control structure of the stop valve body caused by the external environment is reduced, the service life of the stop valve body is prolonged, and the problem that when an existing high-temperature and high-pressure power station stop valve is used, the control structure is exposed outside for a long time, and the service life is prolonged is solved. The problems that a control structure is prone to abrasion and corrosion, and the service life of the stop valve is short are solved.

Description

Technical Field

[0001] The utility model relates to the technical field of valves, in particular to a high-temperature and high-pressure power station stop valve. Background Art

[0002] A globe valve generally consists of a valve body, valve seat, valve cover, valve disc, valve stem, and a transmission mechanism. The transmission mechanism drives the valve stem and valve disc up and down to open, close, or regulate the medium in the valve body channel. For high-temperature globe valves in thermal power plants, the valve body and valve cover are generally made of forged steel, and the valve disc and valve seat sealing surfaces are welded with hard alloy materials to improve temperature resistance and erosion resistance.

[0003] When the existing high-temperature and high-pressure power station stop valve is in use, its control structure is exposed to the outside for a long time, which makes the control structure prone to wear and corrosion, and the service life of the stop valve is short. Therefore, we propose a high-temperature and high-pressure power station stop valve. Utility Model Content

[0004] The purpose of the utility model is to provide a high-temperature and high-pressure power station stop valve, which solves the problems in the background technology.

[0005] To achieve the above-mentioned object, the present invention provides the following technical solution: a high-temperature and high-pressure power station stop valve, comprising a stop valve body, wherein a protection mechanism is provided on the outside of the stop valve body control structure;

[0006] The protective mechanism includes a half protective cover 1 and a half protective cover 2. The outer wall of the half protective cover 1 is fixedly installed with a connecting plate 1, and the outer wall of the half protective cover 2 is fixedly installed with a connecting plate 2. A positioning column is fixedly installed on the inner side of the connecting plate 1, and a column hole is provided on the connecting plate 2. The positioning column movably passes through the connecting plate 2 through the column hole. A card slot is provided on the outer wall of the positioning column. The outer side of the connecting plate 2 is rotatably connected to a rotating shaft through a bearing. The outer wall of the rotating shaft is fixedly sleeved with a card plate, and the card plate is clamped in the card slot. A rotating plate is fixedly installed on one end of the rotating shaft, and a slot pad is fixedly installed on the inner wall of the slot. The slot pad is in close contact with the surface of the outer wall of the card plate.

[0007] Preferably, the number of the positioning posts on the connecting plate one and the number of the post holes on the connecting plate two are both two, and the positioning posts are adapted to the post holes. By providing the positioning posts and the post holes, the connecting plate one can be limited.

[0008] Preferably, the inner walls of the half protective cover 1 and the half protective cover 2 are both provided with sponges, and a mounting block is fixedly installed on the outside of the sponge. The inner walls of the half protective cover 1 and the half protective cover 2 are provided with mounting grooves, and the mounting blocks are inserted into the mounting grooves.

[0009] Preferably, the number of the mounting blocks and the number of the mounting grooves are both two, thereby improving the installation strength of the sponge.

[0010] Preferably, a wall pad is fixedly installed on the inner wall of the mounting groove, and the wall pad is in close contact with the outer wall surface of the mounting block. By providing the wall pad, the connection tightness between the mounting block and the mounting groove can be increased, thereby improving the installation stability of the sponge.

[0011] Preferably, the wall pad and the groove pad are both made of wear-resistant rubber. By using wear-resistant rubber for the wall pad and the groove pad, the service life of the wall pad and the groove pad can be increased.

[0012] Preferably, the number of the upper connecting plate 1 of the half protective cover 1 and the upper connecting plate 2 of the half protective cover 2 are both two.

[0013] The utility model provides a high-temperature and high-pressure power station stop valve. The high-temperature and high-pressure power station stop valve has the following beneficial effects:

[0014] (1) The high-temperature and high-pressure power station stop valve is provided with a protective mechanism, so that the half-protective cover 1 and the half-protective cover 2 can protect the stop valve body control structure, reduce the wear of the threads in the stop valve body control structure caused by the external environment, and improve the service life of the stop valve body. This solves the problem that the control structure of the existing high-temperature and high-pressure power station stop valve is exposed to the outside for a long time during use, resulting in the control structure being easily worn and corroded, and the stop valve having a short service life;

[0015] (2) The high-temperature and high-pressure power station stop valve can absorb the water vapor that may exist in the protective cover by setting a sponge, thereby preventing the control structure of the stop valve body from rusting and further improving the protection quality of the stop valve body. In addition, by setting a mounting block, a mounting groove, and a wall pad, it is convenient for personnel to disassemble, install, and replace the sponge, thereby ensuring the normal use effect of the sponge. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 This is a schematic diagram of the overall structure of the utility model;

[0017] Figure 2 This is a schematic diagram of the disassembled structure of the half protective cover 1 and the half protective cover 2 of the utility model;

[0018] Figure 3 This is a front cross-sectional structural diagram of the half protective cover 1 and the half protective cover 2 of the utility model;

[0019] Figure 4 This is a front cross-sectional structural diagram of the connecting plate 1 and the connecting plate 2 of the present invention;

[0020] Figure 5 For this utility model Figure 3 Schematic diagram of the enlarged structure of part A in the middle.

[0021] In the figure: 1. Stop valve body; 2. Protection mechanism; 3. Sponge; 4. Mounting block; 5. Mounting groove; 6. Wall pad; 201. Half protective cover 1; 202. Half protective cover 2; 203. Connecting plate 1; 204. Connecting plate 2; 205. Positioning column; 206. Column hole; 207. Rotating shaft; 208. Clamping plate; 209. Clamping groove; 210. Slot pad; 211. Rotating plate. DETAILED DESCRIPTION

[0022] In order to have a clearer understanding of the technical features, purposes and effects of the present invention, the specific implementation methods of the present invention are now described with reference to the accompanying drawings.

[0023] Example 1:

[0024] The high temperature and high pressure power station stop valve provided by the utility model is preferably implemented as follows Figures 1 to 5 As shown: a stop valve for a high-temperature and high-pressure power station, comprising a stop valve body 1, a protection mechanism 2 being provided outside the control structure of the stop valve body 1;

[0025] The protective mechanism 2 includes a half protective cover 1 201 and a half protective cover 202. A connecting plate 1 203 is fixedly installed on the outer wall of the half protective cover 1 201, and a connecting plate 204 is fixedly installed on the outer wall of the half protective cover 202. A positioning column 205 is fixedly installed on the inner side of the connecting plate 1 203. A column hole 206 is provided on the connecting plate 204. The positioning column 205 moves through the connecting plate 204 through the column hole 206. A card slot 209 is provided on the outer wall of the positioning column 205. The outer side of the connecting plate 204 is rotatably connected to a rotating shaft 207 through a bearing. A card plate 208 is fixedly sleeved on the outer wall of the rotating shaft 207, and the card plate 208 is clamped in the card slot 209. A rotating plate 211 is fixedly installed on one end of the rotating shaft 207. A slot pad 210 is fixedly installed on the inner wall of the card slot 209. The slot pad 210 is in close contact with the outer wall surface of the card plate 208.

[0026] Specifically, the above technical solution is that when the high-temperature and high-pressure power station stop valve is in use, the protective mechanism 2 is sleeved on the outside of the control structure of the stop valve body 1, so that the positioning column 205 passes through the column hole 206 and penetrates the connecting plate 204, and then the rotating plate 211 is rotated. The rotating plate 211 drives the clamping plate 208 to rotate, so that the clamping plate 208 rotates 90°, so that the clamping plate 208 is clamped in the clamping groove 209, so that the clamping plate 208 limits the positioning column 205, thereby completing the connection between the half-protective cover 1 201 and the half-protective cover 202, so that the half-protective cover 1 201 and the half-protective cover 202 protect the control structure of the stop valve body 1, reduce the wear of the threads in the control structure of the stop valve body 1 caused by the external environment, and improve the service life of the stop valve body 1, solving the problem that the control structure of the existing high-temperature and high-pressure power station stop valve is exposed to the outside for a long time when in use, which makes the control structure prone to wear and corrosion, and the service life of the stop valve is short.

[0027] Furthermore, the number of the positioning posts 205 on the connecting plate 1 203 and the post holes 206 on the connecting plate 2 204 are both two, and the positioning posts 205 and the post holes 206 are adapted to each other;

[0028] Among them, by setting the positioning column 205 and the column hole, the connecting plate 203 can be limited.

[0029] Furthermore, the number of the connecting plate 1 203 on the half protective cover 1 201 and the number of the connecting plate 2 204 on the half protective cover 2 202 are both two.

[0030] Example 2:

[0031] On the basis of the first embodiment, the high temperature and high pressure power station stop valve provided by the present invention is preferably implemented as follows Figures 1 to 5 As shown: the inner walls of the half protective cover 1 201 and the half protective cover 2 202 are both provided with sponges 3, and the outer side of the sponge 3 is fixedly installed with a mounting block 4. The inner walls of the half protective cover 1 201 and the half protective cover 2 202 are provided with mounting grooves 5, and the mounting blocks 4 are inserted into the mounting grooves 5.

[0032] Specifically, the above technical solution is to provide a sponge 3 to absorb any water vapor that may exist in the protective cover, thereby preventing the control structure of the stop valve body 1 from rusting, and further improving the protection quality of the stop valve body 1. In addition, by providing a mounting block 4, a mounting groove 5, and a wall pad 6, it is convenient for personnel to disassemble, assemble, and replace the sponge 3, thereby ensuring the normal use of the sponge 3.

[0033] Furthermore, the number of the mounting blocks 4 and the number of the mounting grooves 5 are both two, thereby improving the mounting strength of the sponge 3 .

[0034] Furthermore, a wall pad 6 is fixedly mounted on the inner wall of the mounting groove 5 , and the wall pad 6 is in close contact with the outer wall surface of the mounting block 4 ;

[0035] Among them, by providing the wall pad 6, the connection tightness between the mounting block 4 and the mounting groove 5 can be increased, thereby improving the installation stability of the sponge 3.

[0036] Furthermore, the wall pad 6 and the groove pad 210 are made of wear-resistant rubber;

[0037] Among them, by using wear-resistant rubber for the wall pad 6 and the groove pad 210, the service life of the wall pad 6 and the groove pad 210 can be increased.

[0038] It should be noted that, in this document, relational terms such as first and second, etc., are used only to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, the terms "comprises," "comprising," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that includes a list of elements includes not only those elements but also other elements not explicitly listed, or elements inherent to such process, method, article, or apparatus.

[0039] Finally, it should be noted that the above description is merely a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art will be able to modify the technical solutions described in the aforementioned embodiments or replace some of the technical features therein with equivalents. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the present invention shall be included within the scope of protection of the present invention.

Claims

1. A high-temperature and high-pressure power station stop valve, comprising a stop valve body (1), characterized in that: A protection mechanism (2) is provided outside the control structure of the stop valve body (1); The protective mechanism (2) comprises a half protective cover (201) and a half protective cover (202), wherein a connecting plate (203) is fixedly mounted on the outer wall of the half protective cover (201), and a connecting plate (204) is fixedly mounted on the outer wall of the half protective cover (202), and a positioning column (205) is fixedly mounted on the inner side of the connecting plate (203), and a column hole (206) is provided on the connecting plate (204), and the positioning column (205) is movable through the column hole (206) and penetrates the connecting plate (204). A slot (209) is provided on the outer wall of the positioning column (205), and a rotating shaft (207) is rotatably connected to the outer side of the connecting plate (204) via a bearing. A clamping plate (208) is fixedly sleeved on the outer wall of the rotating shaft (207), and the clamping plate (208) is clamped in the slot (209). A rotating plate (211) is fixedly installed on one end of the rotating shaft (207), and a slot pad (210) is fixedly installed on the inner wall of the slot (209), and the slot pad (210) is in close contact with the outer wall surface of the clamping plate (208).

2. The high-temperature and high-pressure power station stop valve according to claim 1, characterized in that: The number of the positioning posts (205) on the connecting plate 1 (203) and the post holes (206) on the connecting plate 2 (204) are both two, and the positioning posts (205) and the post holes (206) are adapted to each other.

3. The high-temperature and high-pressure power station stop valve according to claim 1, characterized in that: The inner walls of the half protective cover 1 (201) and the half protective cover 2 (202) are both provided with sponges (3), and a mounting block (4) is fixedly mounted on the outer side of the sponge (3). The inner walls of the half protective cover 1 (201) and the half protective cover 2 (202) are provided with mounting grooves (5), and the mounting blocks (4) are plugged into the mounting grooves (5).

4. The high-temperature and high-pressure power station stop valve according to claim 3, characterized in that: The number of the mounting blocks (4) and the number of the mounting slots (5) are both two.

5. The high-temperature and high-pressure power station stop valve according to claim 3, characterized in that: A wall pad (6) is fixedly mounted on the inner wall of the mounting groove (5), and the wall pad (6) is in close contact with the outer wall surface of the mounting block (4).

6. The high-temperature and high-pressure power station stop valve according to claim 5, characterized in that: The wall pad (6) and the groove pad (210) are both made of wear-resistant rubber.

7. The high-temperature and high-pressure power station stop valve according to claim 1, characterized in that: The number of the upper connecting plate 1 (203) of the half protective cover 1 (201) and the upper connecting plate 2 (204) of the half protective cover 2 (202) are both two.

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