Valve capable of reducing height of valve body

Abstract

The utility model discloses a valve capable of reducing the height of a valve body, and relates to the technical field of valves. The valve capable of reducing the height of the valve body comprises a pipe body connected with a main pipeline, the valve body is arranged at the top of the pipe body, a flow guide sleeve is arranged in the pipe body, the valve body is provided with a pressing plate which is flush with the flow guide sleeve and limits the flow guide sleeve, and the pressing plate is provided with fixing pieces on the front side and the rear side of the flow guide sleeve. The fixing piece and the top end of the flow guide sleeve are staggered, and the fixing piece is connected with the pipe body. According to the valve capable of reducing the height of the valve body, the top of the flow guide sleeve is pressed by the pressing plate, the pressing plate is fixed by the four fixing pieces, and the fixing pieces and the top of the flow guide sleeve are staggered, so that the fixing pieces can be connected with a pipe body, the fixing pieces can be inserted into a deeper depth, the exposed heights of the fixing pieces and the pressing plate are lower, and the valve body can be designed to be shorter. The valve with the height of the valve body reduced can adapt to occasions with limited installation space, the application range is wider, and manufacturing materials are saved.

Description

Technical Field

[0001] This utility model relates to the field of valve technology, specifically to a valve with a reduced valve body height. Background Technology

[0002] The hydrostatic test plug valve is used in the main steam pipeline of thermal power generating units to seal the test medium in the pipeline during the overall hydrostatic test of the unit. It is installed on the steam pipelines at the boiler superheater outlet and reheater inlet and outlet as an isolation device for static hydrostatic testing. After the hydrostatic test, the internal plug plate and support plate are removed, and a flow guide sleeve is installed to allow the pipeline to enter normal use. When a hydrostatic test is required again, the flow guide sleeve is removed, and the plug plate and support plate are reinstalled.

[0003] As per the instruction manual Figure 2 As shown, the pressure components and screws of the existing plugging valve that restrict the flow guide sleeve from the top are fixed in the center position. Therefore, the height of the valve body needs to be considered when designing the valve body height. Generally, the valve body needs to be raised by 45mm to accommodate the pressure components and screws, which increases the overall material cost of the valve. Furthermore, for the main steam pipeline of some thermal power generating units with limited space, the heightened plugging valve is difficult to install properly.

[0004] Therefore, existing technologies need to be improved. Utility Model Content

[0005] The technical problem to be solved by this utility model is that the existing water pressure test plug valve has a high height. The purpose is to provide a valve with a reduced valve body height. By adopting the corresponding technical means, it has the beneficial effects of saving material costs, reducing the overall height, and expanding the application range.

[0006] This utility model is achieved through the following technical solution:

[0007] This utility model provides a valve for reducing valve body height, which includes a pipe body connected to a main pipeline, a valve body disposed at the top of the pipe body, a flow guide sleeve disposed inside the pipe body, a pressure plate disposed on the valve body that is flush with the flow guide sleeve and restricts the flow guide sleeve, and a fixing member disposed on the front and rear sides of the pressure plate on the flow guide sleeve, the fixing member being offset from the top end of the flow guide sleeve, and the fixing member being connected to the pipe body.

[0008] Furthermore, in this utility model, the top of the aforementioned guide sleeve is provided with an abutting plane, which is connected to the bottom surface of the pressure plate.

[0009] Furthermore, in this utility model, the pressure plate is provided with a support plate, and the support plate is provided with a through hole for the fixing member to pass through.

[0010] Furthermore, in this invention, the aforementioned fastener is configured as a bolt.

[0011] Further, in the utility model, the fixed part is symmetrically arranged on the front and back sides of the flow guide sleeve, and the fixed part is symmetrically arranged on the upper and lower sides of the flow guide sleeve.

[0012] Further, in the utility model, the valve body is internally provided with a valve cover.

[0013] Further, in the utility model, the side of the valve cover is provided with a ring groove, and the ring groove is sleeved with a sealing ring.

[0014] Further, in the utility model, the top of the valve cover is provided with a four-open ring, and the top of the four-open ring is provided with a cover plate.

[0015] Further, in the utility model, the cover plate is provided with a screw connected with the valve cover.

[0016] Further, in the utility model, the top of the valve cover is provided with a lifting ring screw.

[0017] Compared with the prior art, the utility model has the following advantages and beneficial effects:

[0018] In the valve for reducing the height of the valve body of the utility model, the top of the flow guide sleeve is pressed by the pressing plate, and the pressing plate is fixed by four fixed parts, the top of the flow guide sleeve is staggered with the fixed part, so that the fixed part can be connected with the pipe body, the fixed part can be inserted to a deeper depth, and the height of the fixed part and the pressing plate exposed outside is lower, and the valve body can be designed to be shorter. The valve for reducing the height of the valve body can adapt to the occasion with limited installation space, has a wider application range, saves the manufacturing material, and reduces the material cost. BRIEF DESCRIPTION OF DRAWINGS

[0019] The drawings described herein are used to provide further understanding of the embodiments of the utility model and constitute a part of the application, and do not constitute the limitation to the embodiments of the utility model. In the drawings:

[0020] Figure 1 It is a sectional view of the valve for reducing the height of the valve body of the utility model;

[0021] Figure 2 It is a sectional view of the existing valve;

[0022] Figure 3 It is a top view of the valve for reducing the height of the valve body of the utility model;

[0023] Figure 4 It is Figure 3 It is a partial view of the section B-B;

[0024] Figure 5The utility model discloses a valve with reduced valve body height, and a half-section schematic view of the valve is shown.

[0025] Figure 6 For Figure 5 An enlarged schematic view of A in the middle.

[0026] Markings in the drawings and corresponding names of parts: 1 - pipe body, 2 - valve body, 3 - flow guide sleeve, 301 - abutting plane, 4 - pressing plate, 401 - support plate, 402 - through hole, 5 - fixing piece, 6 - valve cover, 601 - ring groove, 602 - lifting ring screw, 7 - sealing ring, 8 - four open rings, 9 - cover plate, 10 - screw. DETAILED DESCRIPTION

[0027] In order to make the purpose, technical scheme and advantages of the utility model more clear and intelligible, the utility model will be further described in detail below in combination with examples and drawings, and the schematic implementation mode and the description thereof of the utility model are only used for explaining the utility model, and do not serve as the limitation of the utility model. The following detailed description of the examples of the utility model provided in the drawings is not intended to limit the scope of the claimed utility model, but only represents selected examples of the utility model. Based on the examples in the utility model, all other examples obtained by those skilled in the art without making creative efforts fall within the scope of protection of the utility model.

[0028] It should be noted that: similar signs and letters represent similar items in the following drawings, therefore, once an item is defined in one drawing, it does not need to be further defined and explained in the subsequent drawings. In the description of the utility model examples, it also needs to be explained that, unless explicitly defined and limited, if the terms "arrange", "mount", "connect" appear, they should be understood broadly, for example, can be fixedly connected, or can be detachably connected, or integrally connected; can be mechanically connected, or electrically connected; can be directly connected, or indirectly connected through an intermediate medium, or the communication inside two elements. For those skilled in the art, the specific meaning of the above terms in the utility model can be understood according to the specific circumstances.

[0029] EXAMPLE

[0030] In combination Figures 1-6 with the drawings, the present example provides a valve with reduced valve body height, and the specific structure is described as follows.

[0031] In combination Figure 1As shown, the valve for reducing valve body height according to this utility model mainly includes three parts: pipe body 1, valve body 2, and flow guide sleeve 3. Pipe body 1 is cylindrical and is used to connect to the main pipeline. Valve body 2 is cylindrical, and its bottom end is fixedly connected to pipe body 1. An annular mounting groove is provided inside pipe body 1, located directly below valve body 2, and the circular flow guide sleeve 3 is installed within the mounting groove.

[0032] Furthermore, in combination Figure 1 , Figure 3 and Figure 4 As shown, the pressure plate 4 is elongated and located at the top of the flow guide sleeve 3. The bottom surface of the pressure plate 4 abuts against the top surface of the flow guide sleeve 3, and the flow guide sleeve 3 is fixed by pressing it with the pressure plate 4. The flow guide sleeve 3 is perpendicular to the extension direction of the tube body 1, and the pressure plate 4 is also perpendicular to the extension direction of the tube body 1, so the pressure plate 4 and the flow guide sleeve 3 are flush.

[0033] It should be noted that an abutment surface 301 is provided on the top of the guide sleeve 3, and the abutment surface 301 abuts against the bottom surface of the pressure plate 4 to prevent the guide sleeve 3 from jumping and rotating.

[0034] Combination Figure 3 As shown, the upstream side of the guide sleeve 3 is taken as the front side ( Figure 3 The middle left side), the downstream side is the rear side ( Figure 3 (Right side of the middle). Figure 3 , Figure 4 , Figure 5 and Figure 6 As shown, the pressure plate 4 is equipped with four support plates 401. The support plates 401 have through holes 402. The fastener 5 passes through the through holes 402 and is inserted into the screw hole of the tube body 1, thereby fixing the pressure plate 4.

[0035] It should be noted that the fasteners 5 can be bolts, which are convenient to install and disassemble and have a good effect. In addition, the four fasteners 5 are symmetrical with respect to the front and back and top and bottom of the guide sleeve 3, which makes the pressure plate 4 evenly stressed and has a good fixing effect on the guide sleeve 3.

[0036] In this embodiment, when installing the valve cover 6 and related components, the sealing ring 7 is first fitted into the annular groove 601 on the side of the valve cover 6, and then the valve cover 6 is installed inside the valve body 2. Next, a four-ring 8 is installed on the top of the valve cover 6, and finally the cover plate 9 is placed on top of the four-ring 8. A screw 10 is passed through the mounting hole on the cover plate 9 and screwed into the corresponding screw hole of the valve cover 6 to fix the cover plate 9 on the valve cover 6. Finally, a lifting eye screw 602 is installed on the top of the valve cover 6.

[0037] During normal use of the valve with reduced valve body height, the sealing property and the connection of each part of the valve with reduced valve body height are periodically checked. If leakage is found, the sealing ring 7 is checked in time to see if it is damaged, and if damaged, it is replaced in time. When internal maintenance of the valve is needed, the cover plate 9 and the four open rings 8 are first disassembled, and then the valve cover 6 is taken out from the valve body 2, so that the internal part of the valve can be checked and maintained.

[0038] In combination Figure 1 and Figure 2 As shown in the figure, the valve with reduced valve body height of the utility model moves the fixing part 5 to the two sides of the top of the flow guide sleeve 3 for connection, offsets the center position of the top of the flow guide sleeve 3, and has a deeper position on the pipe body 1 for the connection of the fixing part 5, so that the overall height of the exposed fixing part 5 and the pressing plate 4 on the top of the flow guide sleeve 3 is low, and the valve body 2 can be designed to be shorter in size.

[0039] In summary, the utility model provides a valve with reduced valve body height, which comprises a pipe body 1 connected with a main pipeline, a valve body 2 arranged at the top of the pipe body 1, a flow guide sleeve 3 arranged in the pipe body 1, a pressing plate 4 arranged flush with the flow guide sleeve 3 and limiting the flow guide sleeve 3, fixing parts 5 arranged on the front and back sides of the flow guide sleeve 3, the fixing parts 5 being offset from the top of the flow guide sleeve 3, and the fixing parts 5 being connected with the pipe body 1. The top of the flow guide sleeve 3 is provided with an abutting plane 301 connected with the bottom surface of the pressing plate 4. The pressing plate 4 is provided with a support plate 401 provided with a through hole 402 through which the fixing part 5 passes. The fixing part 5 is configured as a bolt. The fixing parts 5 are symmetrically arranged on the front and back sides of the flow guide sleeve 3, and the fixing parts 5 are symmetrically arranged on the upper and lower sides of the flow guide sleeve 3. The valve body 2 is provided with a valve cover 6. The side edge of the valve cover 6 is provided with a ring groove 601, and the ring groove 601 is sleeved with a sealing ring 7. The top of the valve cover 6 is provided with a four open ring 8, and the top of the four open ring 8 is provided with a cover plate 9. The cover plate 9 is provided with a screw 10 connected with the valve cover 6. The top of the valve cover 6 is provided with a lifting ring screw 602.

[0040] Therefore, the valve with reduced valve body height has the beneficial effects of saving material cost, reducing overall height, and having a wider application range.

[0041] The above specific embodiments further illustrate the purpose, technical scheme and beneficial effects of the utility model, and it should be understood that the above description is only a specific embodiment of the utility model, and is not used to limit the protection scope of the utility model. Any modification, equivalent replacement, improvement, etc. within the spirit and principle of the utility model should be included in the protection scope of the utility model.

Claims

1. A valve having a reduced valve body height, characterized in that The utility model provides a valve body (2) is provided with the valve cover (6) in the pipe body (1) of connecting with the main pipe line, the valve cover (6) is provided with the four open ring (8) on the top, the four open ring (8) is provided with the cover plate (9) on the top, the cover plate (9) is provided with the screw (10) with the valve cover (6) is connected, the valve cover (6) is provided with the ring groove (601) on the side, the ring groove (601) is provided with the sealing ring (7) of setting, the valve cover (6) is provided with the lug screw (602) on the top.

2. The reduced valve height valve of claim 1, wherein, The top of the flow guide sleeve (3) is provided with an abutting plane (301) connected with the bottom surface of the pressing plate (4).

3. The reduced valve height valve of claim 1, wherein, The pressing plate (4) is provided with a support plate (401) provided with a through hole (402) for the fixing member (5) to pass through.

4. The reduced valve height valve of claim 3, wherein, The fixing member (5) is configured as a bolt.

5. The reduced valve height valve of claim 3, wherein, The fixing member (5) is symmetrically arranged on the front and back sides of the flow guide sleeve (3), and the fixing member (5) is symmetrically arranged on the upper and lower sides of the flow guide sleeve (3).

6. The reduced height valve of any one of claims 1-5, wherein, The valve body (2) is provided with a valve cover (6).

7. The reduced valve height valve of claim 6, wherein, The side of the valve cover (6) is provided with a ring groove (601) sleeved with a sealing ring (7).

8. The reduced valve height valve of claim 6, wherein, The top of the valve cover (6) is provided with a four-open ring (8), and the top of the four-open ring (8) is provided with a cover plate (9).

9. The reduced valve height valve of claim 8, wherein, The cover plate (9) is provided with a screw (10) connected with the valve cover (6).

10. The reduced valve height valve of claim 6, wherein, The top of the valve cover (6) is provided with a lifting ring screw (602).

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