CN203297750U - Novel check valve - Google Patents
Novel check valve Download PDFInfo
- Publication number
- CN203297750U CN203297750U CN2013202932726U CN201320293272U CN203297750U CN 203297750 U CN203297750 U CN 203297750U CN 2013202932726 U CN2013202932726 U CN 2013202932726U CN 201320293272 U CN201320293272 U CN 201320293272U CN 203297750 U CN203297750 U CN 203297750U
- Authority
- CN
- China
- Prior art keywords
- valve body
- pipe
- suction pump
- filtering
- valve
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Lifetime
Links
- 238000001914 filtration Methods 0.000 claims abstract description 15
- 230000006835 compression Effects 0.000 claims description 3
- 238000007906 compression Methods 0.000 claims description 3
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 abstract description 6
- 239000012535 impurity Substances 0.000 abstract description 2
- 230000000903 blocking effect Effects 0.000 abstract 1
- 239000010865 sewage Substances 0.000 description 16
- 239000000463 material Substances 0.000 description 8
- 238000004062 sedimentation Methods 0.000 description 4
- QTBSBXVTEAMEQO-UHFFFAOYSA-N Acetic acid Chemical compound CC(O)=O QTBSBXVTEAMEQO-UHFFFAOYSA-N 0.000 description 3
- 239000002253 acid Substances 0.000 description 3
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 2
- 230000002378 acidificating effect Effects 0.000 description 2
- 230000007797 corrosion Effects 0.000 description 2
- 238000005260 corrosion Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- GRYLNZFGIOXLOG-UHFFFAOYSA-N Nitric acid Chemical compound O[N+]([O-])=O GRYLNZFGIOXLOG-UHFFFAOYSA-N 0.000 description 1
- 238000003723 Smelting Methods 0.000 description 1
- 229910000831 Steel Inorganic materials 0.000 description 1
- XSQUKJJJFZCRTK-UHFFFAOYSA-N Urea Chemical compound NC(N)=O XSQUKJJJFZCRTK-UHFFFAOYSA-N 0.000 description 1
- 239000004202 carbamide Substances 0.000 description 1
- 230000008021 deposition Effects 0.000 description 1
- 238000009776 industrial production Methods 0.000 description 1
- 229910052742 iron Inorganic materials 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 230000007257 malfunction Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 229910017604 nitric acid Inorganic materials 0.000 description 1
- 230000001590 oxidative effect Effects 0.000 description 1
- 238000005554 pickling Methods 0.000 description 1
- 230000002265 prevention Effects 0.000 description 1
- 239000013049 sediment Substances 0.000 description 1
- 239000006104 solid solution Substances 0.000 description 1
- -1 steam Substances 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
Images
Landscapes
- Check Valves (AREA)
- Filtration Of Liquid (AREA)
Abstract
The utility model provides a novel check valve comprising a valve body, a water suction pump and a filtering pipe. The lower end of the valve body is the inlet end, the upper end of the valve body is the outlet end, the outlet end of the valve body is connected with the water suction pump through an outflow pipe, one end of the filtering pipe is connected with the inlet end of the valve body, the other end of the filtering pipe is provided with a cover plate, the cover plate and the pipe wall of the filtering pipe are provided with filtering holes, and a pipeline used for introducing of compressed air is externally connected with the pipe wall of the filtering pipe. The novel check valve has the advantages that impurities in cesspits can be blocked out of the check valve; silt at the inlet end of the valve body and the filtering holes of the filtering pipe can be cleaned due to the fact that the compressed air is introduced into the filtering pipe periodically, and the deposited silt can be effectively prevented from blocking the filtering holes of the filtering pipe or the inlet end of the valve body; the water suction pump is prevented from idling, the probability of damage of the water suction pump is reduced, and cost is saved.
Description
Technical field
The utility model relates to a kind of non-return valve.
Background technique
In industrial production, the medium that safety check is mainly used in restriction conduit can only flow to a direction, with the generation of Accident prevention.By selecting different materials, safety check is applicable to mediums such as water, steam, oil product, nitric acid, acetic acid, strong oxidizing property medium and urea, and it is mainly to open voluntarily or throttle down prevents what medium from flowing backwards by the strength of media flow.
In the smelting iron and steel industry, safety check often is used in the sewage sump of solid solution pickling section, because safety check is to be submerged in spent acid, therefore, be not easy examination and maintenance, can not in time understand the service condition of safety check, just it be changed when safety check is plugged cisco unity malfunction often.And because condition of water quality in sewage sump is more abominable, rubbish impurity easily stops up the entry end of safety check, and, the spent acid acid mud that produces in process of production also directly enters in sewage sump, when the sediment deposition in sewage, silt also can be blocked the entrance of safety check, and sewage in sewage sump can't normally be discharged; In addition, after safety check stops up, also easily cause sour pump idle running, cause sour pump to damage, the spare parts consumption cost is improved.Application publication number is that the Chinese patent of CN101943290A has been announced a kind of Filtering ball valve, comprises valve body, and valve body is provided with arm, is provided with filter screen in arm, and filter screen stretches into the inside of valve body.Although the filter screen of this ball valve can filter the foreign material in pipeline,, this ball valve can't be removed the silt that stops up the valve body entrance.
Summary of the invention
The utility model aims to provide a kind ofly can prevent that the sedimentation in water-stop body stops up the non-return valve of its entrance.
A kind of non-return valve, comprise valve body, suction pump and screen pipe, the lower end of valve body is that entry end, upper end are outlet end, the valve outlet end is connected with suction pump by outlet pipe, one end of screen pipe is connected with the valve body entry end, the other end is provided with cover plate, filter opening all is set, the pipeline that the tube wall of inherent filtration pipe external passes into for the compression air on the tube wall of cover plate and screen pipe.
The utility model has the advantage of: all be covered with filter opening on (1) screen pipe and cover plate, foreign material in sewage sump can be blocked in outside safety check, avoid foreign material to block the valve body entry end of safety check; (2) contain many silts in sewage, increase along with sedimentation amount in sewage sump, around screen pipe 7 and the silt of valve body entry end also can get more and more, the utility model can be by regularly passing into pressurized air in screen pipe, silt to valve body entry end and screen pipe filter opening place cleans, can effectively avoid the silt that deposits to stop up screen pipe filter opening or valve body entry end, make when suction pump starts again, sewage can't enter in valve body under the suction of suction pump; (3) avoid the idle running of suction pump, reduce the probability of its damage, save cost.
Further improve and be:
1) mounted valve on pipeline, control compressed-air actuated supply and flow, rationally effectively economizes on resources;
2) screen pipe and valve body are integrated, and can prevent that both joints from being caused fracture by the corrosion of the acidic materials in sewage.
Description of drawings
Fig. 1 is longitudinal sectional view of the present utility model;
Fig. 2 is the structural drawing of cover plate of the present utility model.
Embodiment
Now illustrate by reference to the accompanying drawings mode of execution of the present utility model:
In conjunction with Fig. 1, shown in Figure 2, a kind of non-return valve, comprise valve body 1, suction pump 12 and screen pipe 7, the lower end of valve body 1 is that entry end 4, upper end are outlet end 5, valve outlet end 5 is connected with suction pump 12 by outlet pipe 15, one end of screen pipe 7 is connected with valve body entry end 4, the other end is provided with cover plate 10, on the tube wall of cover plate 10 and screen pipe 7, filter opening 8 is set all, the pipeline 11 that the tube wall of inherent filtration pipe 7 external passes into for the compression air.
The utility model has the advantage of: all be covered with filter opening 8 on (1) screen pipe 7 and cover plate 10, foreign material in sewage sump 14 can be blocked in outside safety check, avoid foreign material to block the valve body entry end 4 of safety check; (2) contain many silts in sewage, increase along with sedimentation amount in sewage sump 14, around screen pipe 7 and the silt of valve body entry end 4 also can get more and more, the utility model can be by regularly passing into pressurized air in screen pipe 7, silt to valve body entry end 4 and screen pipe filter opening 8 places cleans, can effectively avoid the silt that deposits to stop up screen pipe filter opening 8 or valve body entry end 4, make when suction pump 12 starts again, sewage can't enter in valve body 1 under the suction of suction pump 4; (3) avoid the idle running of suction pump 12, reduce the probability of its damage, save cost.
Further improve and be:
1) on pipeline 11 mounted valve 9(is as shown in Figure 1), compressed-air actuated supply and flow are controlled, rationally effectively economize on resources;
2) screen pipe 7 is integrated with valve body 1, can prevent that both joints from being caused fracture by the corrosion of the acidic materials in sewage.
The utility model be a kind of simple in structure, save cost and can avoid sedimentation to stop up the non-return valve of its entrance.
Claims (3)
1. non-return valve, comprise valve body, suction pump and screen pipe, the lower end of valve body is that entry end, upper end are outlet end, the valve outlet end is connected with suction pump by outlet pipe, it is characterized in that: an end of screen pipe is connected with the valve body entry end, the other end is provided with cover plate, filter opening all is set, the pipeline that the tube wall of inherent filtration pipe external passes into for the compression air on the tube wall of cover plate and screen pipe.
2. a kind of non-return valve according to claim 1, is characterized in that: mounted valve on pipeline.
3. a kind of non-return valve according to claim 1, it is characterized in that: screen pipe and valve body are integrated.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013202932726U CN203297750U (en) | 2013-05-27 | 2013-05-27 | Novel check valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013202932726U CN203297750U (en) | 2013-05-27 | 2013-05-27 | Novel check valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203297750U true CN203297750U (en) | 2013-11-20 |
Family
ID=49573757
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2013202932726U Expired - Lifetime CN203297750U (en) | 2013-05-27 | 2013-05-27 | Novel check valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203297750U (en) |
-
2013
- 2013-05-27 CN CN2013202932726U patent/CN203297750U/en not_active Expired - Lifetime
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20131120 |