Valve sleeve type blow-down valve

Abstract

The utility model discloses a valve sleeve type blow-down valve in the technical field of valves. The valve sleeve type blow-down valve comprises a valve body, the valve body comprises a feeding end and a discharging end, a valve cover is fixedly connected to the valve body, a valve sleeve is arranged in the valve cover, a material passing hole is formed in the valve sleeve, a valve element is arranged in the valve sleeve, the valve element is fixedly connected with a valve rod, and the valve rod extends out of the valve cover. The valve body is further detachably connected with a mounting plate, the mounting plate is close to the feeding end, the mounting plate is detachably connected with a filtering piece, and the filtering piece is located under the valve element. According to the blow-down valve in the scheme, sewage media can be filtered before entering the valve sleeve, large impurity particles are intercepted, the risk that the blow-down valve is blocked is further reduced, the filter part can be cleaned only by detaching the mounting plate from the valve body, and the maintenance efficiency of the blow-down valve is improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to valve technical field, especially a valve sleeve type blowdown valve. BACKGROUND

[0002] With the acceleration of industrialization and urbanization, environmental pollution problems are becoming increasingly serious. In the sewage treatment process, part of the plastic material is not easy to degrade naturally due to its chemical stability, and is easy to mix into sewage. Once these difficult-to-decompose plastic fragments enter the blowdown system, they may cause the blowdown equipment, especially the blowdown valve, to be blocked, affecting the normal operation of the system. When facing such situations, the traditional blowdown valve often appears to be inadequate, because they usually do not have a design that can effectively handle this type of foreign matter.

[0003] Although the valve sleeve type blowdown valve in the prior art has the advantages of simple structure and convenient operation, its use quality will be significantly affected when encountering the above-mentioned problems. After being blocked by plastic and other foreign matter, not only a lot of manpower and material resources are needed to clean up, but also secondary pollution to the environment may occur. In addition, when the valve body is blocked, the conventional cleaning method is inefficient, and sometimes the entire blowdown valve has to be disassembled for cleaning or replacement, increasing maintenance cost and time. SUMMARY

[0004] The utility model intends to provide a valve sleeve type blowdown valve to solve the problem that the existing valve sleeve type blowdown valve is easily blocked during blowdown.

[0005] The valve sleeve type blowdown valve in the present scheme comprises a valve body, the valve body comprises an inlet end and an outlet end, a valve cover is fixedly connected to the valve body, a valve sleeve is arranged in the valve cover, a material passing hole is arranged on the valve sleeve, a valve core is arranged in the valve sleeve, the valve core is fixedly connected with a valve rod, the valve rod extends out of the valve cover; an installation plate is detachably connected to the valve body, the installation plate is close to the inlet end, a filter element is detachably connected to the installation plate, and the filter element is located directly below the valve core.

[0006] The working principle and beneficial effects of the present scheme are as follows: when blowdown is needed, the valve rod is opened, the medium enters the valve body, and then the medium follows the inlet end to the filter element position, after being filtered by the filter element, the sewage medium enters the valve sleeve, and is discharged from the material passing hole to the outlet end. The blowdown valve in the present scheme can filter the sewage medium before it enters the valve sleeve, intercept larger impurity particles, and further reduce the risk of the blowdown valve being blocked. Only by disassembling the installation plate from the valve body can the filter element be cleaned, and the maintenance efficiency of the blowdown valve is improved.

[0007] Further, the inner wall of the valve body is provided with a spiral guide groove near the inlet end. When the sewage medium enters the inlet end, the spiral guide groove can guide the medium to produce spiral flow, and the sewage spiral flow hits the filter element, thereby achieving flushing of the filter element, preventing impurities from adhering and accumulating on the filter element, and reducing the possibility of the filter element being blocked.

[0008] Further, the filter element comprises a fixing ring, a plurality of reinforcing ribs are fixedly connected to the fixing ring, and a filter screen with a triangular cross section is arranged in the fixing ring, and two ends of the filter screen are fixedly connected with the reinforcing ribs. The reinforcing ribs can increase the strength and avoid damage of the filter element caused by water pressure impact.

[0009] Further, the filter screen comprises two symmetrically arranged inclined plates and two side sealing plates, the side sealing plates are used for fixing the inclined plates, filter holes are uniformly distributed on the inclined plates and the side sealing plates, and a plurality of reinforcing ribs are fixedly connected side by side on the inclined plates and the side sealing plates. The reinforcing ribs are used for fixing the inclined plates and the side sealing plates to avoid deformation.

[0010] Further, the outer wall of the valve core is provided with a scraping sealing strip, and the scraping sealing strip abuts against the valve sleeve. The scraping sealing strip scrapes the accumulated matters on the inner wall of the valve core downward and drops onto the filter screen as the valve core moves downward.

[0011] Further, the mounting plate is connected to the bottom of the valve body through bolts.

[0012] Further, the bottom of the valve core is arc-shaped and protruding, and the outer wall of the arc-shaped protrusion is provided with a plurality of pressure reduction grooves. In use, the pressure reduction grooves reduce the pressure of the sewage on the valve core and effectively avoid cavitation. BRIEF DESCRIPTION OF DRAWINGS

[0013] Figure 1 It is a structural schematic view of the valve sleeve type blowdown valve.

[0014] Figure 2 It is a structural schematic view of the valve sleeve type blowdown valve. Figure 1 It is an enlarged view of 7. DETAILED DESCRIPTION

[0015] The following will be further described in detail through specific embodiments:

[0016] The reference signs in the drawings of the specification comprise: a valve body 1, an inlet end 2, an outlet end 3, a valve sleeve 4, a filter hole 5, a valve rod 6, a filter element 7, a fixing ring 71, a reinforcing rib 72, an inclined plate 73, a side sealing plate 74, a mounting plate 8, a valve core 9, a pressure reduction groove 10, and a sealing strip 11.

[0017] The embodiment is basically as shown in the accompanying drawings Figure 1 and Figure 2The utility model discloses a valve bush type blowdown valve, including the valve body 1, the left end of valve body 1 is feed end 2, the right end of valve body 1 is discharge end 3, the inner wall of valve body 1 is close to the position of feed end 2 is equipped with spiral guide groove, is fixedly connected with the valve cover on valve body 1, is equipped with bushing 4 in the valve cover, is equipped with the material hole 5 on bushing 4, is vertically slidably connected with the valve core 9 in bushing 4, the bottom of valve core 9 is arc convex, and the outer wall of arc convex has four pressure relief groove 10, and the outer wall of valve core 9 is fixed and is ringed and is equipped with the scraping material sealing strip 11, and the scraping material sealing strip 11 is supported with bushing 4, and valve core 9 is fixedly connected with valve stem 6, and valve stem 6 extends to the valve cover outside, and bushing 4 is set on valve core 9, is bolted on valve body 1 with the mounting plate 8, and the mounting plate 8 is close to feed end 2, and is screwed on the mounting plate 8 with filter piece 7, and filter piece 7 is located directly below valve core 9, and filter piece 7 includes fixed ring 71, and a plurality of reinforcing ribs 72 are fixedly connected on fixed ring 71, and the filter screen with the section of triangle is equipped in fixed ring 71, and both ends of filter screen are fixedly connected with reinforcing rib 72, and filter screen includes two symmetrical inclined plates 73 and two side sealing plates 74, and side sealing plate 74 is used for fixing inclined plate 73, and filter hole is uniformly distributed on inclined plate 73 and side sealing plate 74, and a plurality of reinforcing ribs 72 are fixedly connected side by side on inclined plate 73 and side sealing plate 74.

[0018] When needing to carry out blowdown, open valve stem 6. After sewage medium enters feed end 2, spiral guide groove can guide medium to produce spiral flow, and sewage spiral flow rushes to filter screen, realizes the flushing of filter screen, prevents impurities from adhering and accumulating on filter screen, reduces the possibility of filter screen being blocked, and then medium follows feed end 2 to filter piece 7 position, and the reinforcing rib 72 connected with the fixed ring 71 can increase the strength of filter piece 7, avoids the deformation of filter screen being washed by water pressure, and the reinforcing rib 72 on the triangular filter screen can prevent the deformation of filter screen, increase the strength, and the triangular filter screen is also more stable, as valve core 9 opens along with valve stem 6, valve core 9 no longer blocks material hole 5, and the arc convex on valve core 9 can respond to the impact of water pressure, and pressure relief groove 10 avoids the deformation of valve core 9, avoids the poor sealing effect of valve core 9, and sewage medium enters bushing 4, and is discharged from material hole 5 to discharge end 3. The blowdown valve in the scheme can filter sewage medium before entering bushing 4, intercept larger impurity particles, further reduce the risk of blowdown valve being blocked, and only need to detach mounting plate 8 from valve body 1 to clean filter piece 7, improve the maintenance efficiency of blowdown valve.

[0019] The above only is the embodiment of the present application, and the well-known specific structure and characteristics and other common knowledge in the scheme are not described too much here. It should be pointed out that, for those skilled in the art, without departing from the structure of the present application, a number of modifications and improvements can be made, which should also be considered as the protection scope of the present application, and these will not affect the effect and practicality of the present application. The protection scope claimed in the present application should be subject to the content of its claims, and the specific implementation mode and the like recorded in the specification can be used to explain the content of the claims.

Claims

1. A valve-in-housing blowdown valve characterized by: The utility model provides a valve, including valve body, the valve body includes feed end and delivery end, and the valve cover is fixedly connected on the valve body, and the valve cover is equipped with valve sleeve, and the valve sleeve is equipped with the material hole, and the valve sleeve is equipped with the valve core, and the valve core is fixedly connected with valve rod, and the valve rod extends to the valve cover outside, the valve body still can detachably connect with the mounting panel, and the mounting panel is close to feed end, and the mounting panel is detachably connected with filter piece, and the filter piece is located the right below valve core.

2. A valve-in-housing type blowdown valve according to claim 1, characterized in that: The inner wall of the valve body is provided with a spiral flow guide groove near the feed end.

3. A valve-in-housing drain valve according to claim 2, wherein: The filter piece includes a fixed ring, a plurality of reinforcing ribs are fixedly connected to the fixed ring, and a filter screen with a triangular cross section is arranged in the fixed ring, and the two ends of the filter screen are fixedly connected to the reinforcing ribs.

4. A valve-in-housing drain valve according to claim 3, wherein: The filter screen includes two symmetrically arranged inclined plates and two side sealing plates for fixing the inclined plates, filter holes are uniformly distributed on the inclined plates and the side sealing plates, and a plurality of reinforcing ribs are fixedly connected to the inclined plates and the side sealing plates side by side.

5. A valve-in-housing drain valve according to claim 4, wherein: The outer wall of the valve core is annularly provided with a scraping sealing strip, and the scraping sealing strip abuts against the valve sleeve.

6. A valve-in-housing drain valve according to claim 5, wherein: The bottom of the valve body and the mounting panel are connected by bolts.

7. A valve-in-housing drain valve according to claim 6, wherein: The bottom of the valve core is arc-shaped and protruding, and the outer wall of the arc-shaped protrusion is annularly provided with a plurality of pressure reduction grooves.

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