Scouring-resistant stop valve for steam-water pipeline

Abstract

The utility model relates to the technical field of stop valves, and discloses a scouring-resistant stop valve for a steam-water pipeline, which comprises a stop valve body, a water inlet pipe is communicated with the left side of the stop valve body close to the bottom end, a water outlet pipe is communicated with the right side of the stop valve body close to the bottom end, and scouring-resistant mechanisms are arranged in the water outlet pipe and the water inlet pipe; the washing-resistant mechanism comprises a fixing ring, a washing-resistant sleeve and a pin rod, a plurality of supporting plates are fixedly installed on the inner side of the fixing ring, the outer walls of the supporting plates are fixedly sleeved with the washing-resistant sleeve, and the washing-resistant sleeve is in close contact with the surface of the inner wall of the water outlet pipe. The inner walls of the water outlet pipe and the water inlet pipe can be well protected through the washing-resistant sleeve in the washing-resistant mechanism, so that steam or water does not make direct contact with the water outlet pipe and the water inlet pipe, washing abrasion to the water outlet pipe and the water inlet pipe is reduced, and therefore the service life of the stop valve is prolonged.

Description

Technical Field

[0001] The utility model relates to the technical field of stop valves, in particular to a scour-resistant stop valve for steam-water pipelines. Background Art

[0002] The stop valve is a tool that relies on the pressure of the valve stem to make the valve disc sealing surface fit tightly with the valve seat sealing surface to prevent the flow of media. It is a forced sealing valve and one of the most widely used valves. The stop valve is divided into four types according to the channel direction: straight-through stop valve, direct-flow stop valve, angle stop valve, and plunger stop valve;

[0003] However, in actual use, there may be some strong solids in the medium. When the medium is transmitted through the valve, the solids in the medium will impact the inner walls of the water inlet and outlet, causing damage to the valve. For this reason, we propose a scour-resistant stop valve for steam and water pipelines. Utility Model Content

[0004] The purpose of the utility model is to provide a scour-resistant stop valve for a steam-water pipeline, thereby solving the problems in the background technology.

[0005] To achieve the above-mentioned object, the present invention provides the following technical solution: a scour-resistant stop valve for a steam-water pipeline, comprising a stop valve body, wherein the stop valve body is connected to a water inlet pipe near the left side of the bottom end thereof, and the stop valve body is connected to a water outlet pipe near the right side of the bottom end thereof, and both the water outlet pipe and the water inlet pipe are provided with scour-resistant mechanisms;

[0006] The scour-resistant mechanism includes a fixing ring, a scour-resistant sleeve, and a pin rod, a support plate fixedly installed on the inner side of the fixing ring, and the number of the support plates is several, the scour-resistant sleeve fixing sleeve is arranged on the outer walls of several support plates, the scour-resistant sleeve is in close contact with the inner wall surface of the water outlet pipe, the fixing sleeve on the outer wall of the water outlet pipe is provided with a link, a positioning rod is fixedly installed on the outer side of the link, a rod hole 1 is opened on the link, the positioning rod movably passes through the link through the rod hole 1, the outer wall of the fixing ring is fixedly installed with a fixing plate, the fixing plate is provided with a rod hole 2, the pin rod movably passes through the fixing plate through the rod hole 2, the outer wall of the positioning rod is provided with a pin groove, the pin rod is inserted in the pin groove, the outer wall fixing sleeve of the pin rod is provided with a limit plate, the outer wall of the pin rod is surrounded by a spring, one end of the spring is fixedly installed on the top of the limit plate, and the other end of the spring is fixedly installed on the bottom end of the fixing plate.

[0007] Preferably, a pull plate is fixedly installed on the top end of the pin rod. By providing the pull plate, it is convenient for personnel to pull the pin rod through the pull plate, thereby facilitating personnel operation.

[0008] Preferably, the number of the positioning rods and the rod hole one is four, and the number of the fixing plates and the pin rods is also four. By providing the pin rods, the pin rods can be inserted into the pin grooves, thereby limiting the positioning rods.

[0009] Preferably, a hole pad is fixedly installed on the inner wall of the rod hole 1, and the hole pad is in close contact with the outer wall surface of the positioning rod. The material of the hole pad is wear-resistant rubber. By setting the hole pad, the connection tightness between the positioning rod and the rod hole 1 is increased, thereby improving the installation stability of the fixing ring.

[0010] Preferably, the support plate and the scour-resistant sleeve are inclined, and the support plate and the scour-resistant sleeve have the same length. By setting the support plate and the scour-resistant sleeve to have the same length, the support stability of the support plate on the scour-resistant sleeve is improved.

[0011] Preferably, the pin rod is matched with the second rod hole and the pin groove.

[0012] The utility model provides a scour-resistant stop valve for a steam-water pipeline. The scour-resistant stop valve for a steam-water pipeline has the following beneficial effects:

[0013] (1) The scour-resistant stop valve for the steam-water pipeline can provide good protection for the inner walls of the outlet pipe and the inlet pipe through the scour-resistant sleeve in the scour-resistant mechanism, so that steam or water does not directly contact the outlet pipe and the inlet pipe, reducing the scour wear of the outlet pipe and the inlet pipe, thereby increasing the service life of the stop valve;

[0014] (2) The scour-resistant stop valve for steam and water pipelines can facilitate personnel to disassemble and replace the scour-resistant sleeve through the cooperation of the positioning rod, rod hole 1, spring, fixed plate, pin rod, pull plate, limit plate, pin groove and rod hole 2 in the scour-resistant mechanism, thereby ensuring the normal use effect of the scour-resistant sleeve and improving the disassembly and assembly efficiency of personnel. It has a simple structure and strong practicality. BRIEF DESCRIPTION OF THE DRAWINGS

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

[0016] Figure 2 This is a schematic diagram of the front cross-sectional structure of the water outlet pipe of the utility model;

[0017] Figure 3 This is a schematic diagram of the structure of the scour-resistant sleeve of the utility model;

[0018] Figure 4 For this utility model Figure 2 Schematic diagram of the enlarged structure of part A in the middle.

[0019] In the figure: 1. Stop valve body; 2. Outlet pipe; 3. Inlet pipe; 4. Anti-scour mechanism; 5. Hole pad; 401. Fixed ring; 402. Support plate; 403. Anti-scour sleeve; 404. Link; 405. Positioning rod; 406. Rod hole 1; 407. Spring; 408. Fixed plate; 409. Pin rod; 410. Pull plate; 411. Limit plate; 412. Pin groove; 413. Rod hole 2. DETAILED DESCRIPTION

[0020] 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.

[0021] like Figure 1-4 As shown, the utility model provides a technical solution: a scour-resistant stop valve for a steam-water pipeline, comprising a stop valve body 1, a water inlet pipe 3 is connected to the left side of the stop valve body 1 near the bottom end, a water outlet pipe 2 is connected to the right side of the stop valve body 1 near the bottom end, and a scour-resistant mechanism 4 is provided in both the water outlet pipe 2 and the water inlet pipe 3;

[0022] The anti-scour mechanism 4 includes a fixed ring 401, an anti-scour sleeve 403, and a pin rod 409. A support plate 402 is fixedly installed on the inner side of the fixed ring 401. The number of support plates 402 is several. The anti-scour sleeve 403 is fixedly sleeved on the outer wall of several support plates 402. The anti-scour sleeve 403 is in close contact with the inner wall surface of the outlet pipe 2. The support plate 402 and the anti-scour sleeve 403 are inclined, and the support plate 402 and the anti-scour sleeve 403 have the same length. By setting the support plate 402 and the anti-scour sleeve 403 to be the same length, the support stability of the support plate 402 on the anti-scour sleeve 403 is improved. The outer wall fixed sleeve of the outlet pipe 2 is provided with a link 404, and a positioning rod 405 is fixedly installed on the outside of the link 404. A rod hole 406 is provided, and a positioning rod 405 is movable through the rod hole 406 to penetrate the chain 404. There are four positioning rods 405 and four rod holes 406, and there are four fixing plates 408 and four pin rods 409. By setting the pin rod 409, the pin rod 409 can be inserted into the pin groove 412, thereby limiting the positioning rod 405. A hole pad 5 is fixedly installed on the inner wall of the rod hole 406. The hole pad 5 is in close contact with the outer wall surface of the positioning rod 405. The material of the hole pad 5 is wear-resistant rubber. By setting the hole pad 5, the connection tightness between the positioning rod 405 and the rod hole 406 is increased, thereby improving the installation stability of the fixing ring 401. The outer wall of the fixing ring 401 is fixedly installed with a fixing plate 408, a rod hole 2 413 is provided on the fixed plate 408, and the pin rod 409 passes through the rod hole 2 413 and moves through the fixed plate 408. A pull plate 410 is fixedly installed on the top of the pin rod 409. By setting the pull plate 410, it is convenient for personnel to pull the pin rod 409 through the pull plate 410, thereby facilitating personnel operation. A pin groove 412 is provided on the outer wall of the positioning rod 405, and the pin rod 409 is inserted in the pin groove 412. The pin rod 409 is adapted to the rod hole 2 413 and the pin groove 412. A limit plate 411 is fixedly sleeved on the outer wall of the pin rod 409. A spring 407 is surrounded by the outer wall of the pin rod 409. One end of the spring 407 is fixedly installed on the top of the limit plate 411, and the other end of the spring 407 is fixedly installed on the fixed plate 408 At the bottom end, the scour-resistant sleeve 403 in the scour-resistant mechanism can provide good protection for the inner walls of the outlet pipe 2 and the water inlet pipe 3, so that steam or water does not directly contact the outlet pipe 2 and the water inlet pipe 3, reducing the scour wear of the outlet pipe 2 and the water inlet pipe 3, thereby improving the service life of the stop valve. Through the cooperation of the positioning rod 405, rod hole 1 406, spring 407, fixing plate 408, pin rod 409, pull plate 410, limit plate 411, pin groove 412 and rod hole 2 413 in the scour-resistant mechanism, it is convenient for personnel to disassemble and replace the scour-resistant sleeve 403, ensure the normal use effect of the scour-resistant sleeve 403, improve the disassembly and assembly efficiency of personnel, and have a simple structure and strong practicality.

[0023] When the scour-resistant stop valve for the steam-water pipeline is in use, the scour-resistant sleeve 403 is inserted into the outlet pipe 2 and the inlet pipe 3, so that the scour-resistant sleeve 403 is in close contact with the inner walls of the outlet pipe 2 and the inlet pipe 3, and the pull plate 410 is pulled. The pull plate 410 drives the pin rod 409 to move upward, so that the pin rod 409 is not on the side of the rod hole 1 406. The pin rod 409 drives the limiting plate 411 to compress the spring 407, and then the positioning rod 405 passes through the rod hole 1 406. The pull plate 410 is released, and the limiting plate 411 will drive the pin rod 409 to insert into the pin groove 412 under the restoring force of the spring 407, thereby limiting the positioning rod 405 and completing the installation of the scour-resistant sleeve 403. The scour-resistant sleeve 403 in the mechanism can provide good protection for the inner walls of the outlet pipe 2 and the inlet pipe 3, so that steam or water does not directly contact the outlet pipe 2 and the inlet pipe 3, reducing the scour wear of the outlet pipe 2 and the inlet pipe 3, thereby increasing the service life of the stop valve; through the cooperation of the positioning rod 405, rod hole 1 406, spring 407, fixing plate 408, pin rod 409, pull plate 410, limit plate 411, pin groove 412 and rod hole 2 413 in the mechanism, it is convenient for personnel to disassemble, assemble and replace the scour-resistant sleeve 403, ensure the normal use effect of the scour-resistant sleeve 403, improve the disassembly and assembly efficiency of personnel, and have a simple structure and strong practicality.

[0024] 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.

[0025] 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 scour-resistant stop valve for a steam-water pipeline, comprising a stop valve body (1), characterized in that: The stop valve body (1) is connected to a water inlet pipe (3) on the left side near the bottom end, and is connected to a water outlet pipe (2) on the right side near the bottom end. Both the water outlet pipe (2) and the water inlet pipe (3) are provided with a scouring resistance mechanism (4). The anti-scour mechanism (4) comprises a fixed ring (401), an anti-scour sleeve (403), and a pin (409). A support plate (402) is fixedly installed on the inner side of the fixed ring (401). The number of the support plates (402) is several. The anti-scour sleeve (403) is fixedly sleeved on the outer walls of several support plates (402). The anti-scour sleeve (403) is in close contact with the inner wall surface of the outlet pipe (2). The outer wall fixed sleeve of the outlet pipe (2) is provided with a link (404). A positioning rod (405) is fixedly installed on the outer side of the link (404). A rod hole (406) is opened on the link (404). The positioning rod (405) movably penetrates the link through the rod hole (406). Ring (404), a fixing plate (408) is fixedly installed on the outer wall of the fixing ring (401), a rod hole (413) is provided on the fixing plate (408), the pin rod (409) is movably passed through the fixing plate (408) through the rod hole (413), a pin groove (412) is provided on the outer wall of the positioning rod (405), the pin rod (409) is inserted into the pin groove (412), a limiting plate (411) is fixedly sleeved on the outer wall of the pin rod (409), a spring (407) is surrounded on the outer wall of the pin rod (409), one end of the spring (407) is fixedly installed on the top of the limiting plate (411), and the other end of the spring (407) is fixedly installed on the bottom of the fixing plate (408).

2. The scour-resistant stop valve for steam and water pipelines according to claim 1, characterized in that: A pull plate (410) is fixedly mounted on the top end of the pin rod (409).

3. The scour-resistant stop valve for steam and water pipelines according to claim 1, characterized in that: The number of the positioning rods (405) and the rod hole (406) is four, and the number of the fixing plates (408) and the pin rods (409) is also four.

4. The scour-resistant stop valve for steam and water pipelines according to claim 1, characterized in that: A hole pad (5) is fixedly mounted on the inner wall of the rod hole 1 (406), and the hole pad (5) is in close contact with the outer wall surface of the positioning rod (405). The material of the hole pad (5) is wear-resistant rubber.

5. The scour-resistant stop valve for steam and water pipelines according to claim 1, characterized in that: The support plate (402) and the scour-resistant sleeve (403) are inclined, and the support plate (402) and the scour-resistant sleeve (403) have the same length.

6. The scour-resistant stop valve for steam and water pipelines according to claim 1, characterized in that: The pin rod (409) is matched with the second rod hole (413) and the pin groove (412).

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