CN201916553U - Pressure reducing valve bank - Google Patents
Pressure reducing valve bank Download PDFInfo
- Publication number
- CN201916553U CN201916553U CN2011200157029U CN201120015702U CN201916553U CN 201916553 U CN201916553 U CN 201916553U CN 2011200157029 U CN2011200157029 U CN 2011200157029U CN 201120015702 U CN201120015702 U CN 201120015702U CN 201916553 U CN201916553 U CN 201916553U
- Authority
- CN
- China
- Prior art keywords
- flow tube
- air inlet
- valve group
- inlet flow
- reduction 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
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Abstract
The utility model provides a pressure reducing valve bank, which includes a tapered gas inlet, a plurality of gas inlet overcurrent pipes connected on the bottom surface of the tapered gas inlet, a tapered gas outlet, and a plurality of gas outlet overcurrent pipes connected on the bottom surface of the tapered gas outlet, wherein the gas inlet overcurrent pipes and the gas outlet overcurrent pipes are same in number; the gas inlet overcurrent pipes are connected with the corresponding gas outlet overcurrent pipes respectively through butterfly valves; and current guide pillars are arranged at pipe openings of the gas inlet overcurrent pipes in the diameter directions. The pressure reducing valve bank is further provided with wear-resisting bushings on the inner walls of the gas inlet overcurrent pipes. The introduction of the current guide pillars and the wear-resisting bushings reduces the damage degree of the pressure reducing valve bank, and prolongs the service life of the pressure reducing valve bank. The service life of the pressure reducing valve bank can be longer than 18 months.
Description
Technical field
The utility model relates to a kind of reduction valve group, particularly relates to a kind of reduction valve group of metallurgy industry blast furnace gas on half purified gas pipeline behind the gravitational dust collection that be applied to.
Background technique
In the metallurgy industry, the coal gas that blast furnace produces can be divided into two-way usually through behind the gravitational dust collection, wherein a road continue to become purified gas after the dedusting through the pure qi (oxygen) pipeline, another road is then led to behind more than half purified gas pipelines as half purified gas and is diffused tower.Exceptionally, when the pure qi (oxygen) pipeline can't proper functioning, the coal gas that blast furnace produces can all enter behind more than half purified gas pipelines and diffuse tower.Owing to have very high pressure difference inside and outside the blast furnace, therefore, need regulate the pressure in the blast furnace, in order to realize this purpose, common way is on pure qi (oxygen) pipeline and half purified gas pipeline the reduction valve group to be set.In half purified gas pipeline, because working medium is half purified gas, wherein contain a large amount of dusts, and has very high flow velocity, promptly contain a large amount of dusts in half purified gas of the reduction valve group that on more than half purified gas pipelines, is provided with, and has very high flow velocity, need its flow velocity be reduced by the reduction valve group, and then with the low pressure medium transport to diffusing tower, flow velocity reduces used up energy demand and consumes by the reduction valve group, half purified gas has caused the reduction valve group very easily to be damaged to directly washing away of reduction valve group, and existing application only is about 3 months the working life of the reduction valve group of metallurgy industry blast furnace gas on half purified gas pipeline behind the gravitational dust collection usually.
Therefore, need improve in the reduction valve group of metallurgy industry blast furnace gas on half purified gas pipeline behind the gravitational dust collection, to improve the working life of reduction valve group to existing application.
The model utility content
In order to address the above problem, the utility model aims to provide a kind of reduction valve group that is provided with diversion column at the mouth of pipe of air inlet flow tube along diametric(al).
The technological scheme of the utility model reduction valve group is as follows:
The utility model reduction valve group comprises the taper suction port, be connected a plurality of air inlet flow tubes, the taper air outlet on the described taper suction port bottom surface and be connected on the bottom surface, described taper air outlet and the identical flow tube of giving vent to anger of described air inlet flow tube quantity, described air inlet flow tube is connected with the corresponding described flow tube of giving vent to anger by butterfly valve respectively, and it is characterized in that: the mouth of pipe of described air inlet flow tube is provided with diversion column along diametric(al).
Further, the diversion column on the described air inlet flow tube is less than or equal to the cross-section area of respective direction of the butterfly plate of the described butterfly valve that is connected with described air inlet flow tube by the cross-section area that cuts perpendicular to described diametric plane.
Further, the inwall of described air inlet flow tube is provided with anti-wearing liner.
Further, described anti-wearing liner is an integral body.
The beneficial effect of the utility model reduction valve group is:
First, because the mouth of pipe at the air inlet flow tube of the utility model reduction valve group is provided with diversion column along diametric(al), described diversion column can reduce the flow velocity of half purified gas air-flow effectively, change the fluidised form of half purified gas, realized pressure reduction with classification with the butterfly valve acting in conjunction, avoid half purified gas to directly the washing away of butterfly valve well, thereby alleviated the damaged condition to the reduction valve group.
The second, owing on the inwall of the utility model reduction valve group air inlet flow tube, inlayed anti-wearing liner, increased the anti-scouring capability of reduction valve group further, thereby prolonged the working life of reduction valve group.
Prolong the working life of the utility model reduction valve group greatly, generally can reach more than 18 months.
Description of drawings
Fig. 1 is the perspective view of the utility model reduction valve group;
Fig. 2 is the perspective view of the taper suction port of the utility model reduction valve group;
Fig. 3 is the diversion column of reflection the utility model reduction valve group and the perspective view of anti-wearing liner position;
Fig. 4 is the schematic cross-section of the flow tube of the utility model reduction valve group.
Description of reference numerals:
1-taper suction port 2-air inlet flow tube
The 3-butterfly valve 4-flow tube of giving vent to anger
5-taper air outlet 6-diversion column
7-anti-wearing liner 8-suction port bottom surface
Bottom surface, 9-air outlet 10-diversion column
Embodiment
Describe mode of execution of the present utility model with reference to the accompanying drawings in detail.
Shown in Fig. 1～4, the utility model reduction valve group comprises taper suction port 1, is connected a plurality of air inlet flow tubes 2, the taper air outlet 5 on taper suction port 1 bottom surface and is connected the flow tube 4 of giving vent to anger identical with air inlet flow tube 2 quantity on 5 bottom surfaces, taper air outlet, air inlet flow tube 2 is connected with the flow tube 4 of giving vent to anger accordingly by butterfly valve 3 respectively, and the mouth of pipe of air inlet flow tube 2 is provided with diversion column 6 or 10 along diametric(al).Diversion column 6 on the air inlet flow tube 2 or 10 can be less than or equal to the cross-section area of respective direction of the butterfly plate of the butterfly valve 3 that is connected with air inlet flow tube 2 by the cross-section area that cuts perpendicular to diametric plane, to avoid influencing overcurrent efficient.When being applied to the utility model reduction valve group on the half purified gas pipeline of metallurgy industry blast furnace gas behind gravitational dust collection, diversion column 6 or 10 shape can design according to the size and the half purified gas flow rate of fluid of taper suction port 1 and air inlet flow tube 2.
When being applied to the utility model reduction valve group on the half purified gas pipeline of metallurgy industry blast furnace gas behind gravitational dust collection, because the mouth of pipe at the air inlet flow tube 2 of the utility model reduction valve group is provided with diversion column 6 or 10 along diametric(al), diversion column 6 or 10 can reduce the flow velocity of half purified gas air-flow effectively, change the fluidised form of half purified gas, realized pressure reduction with classification with butterfly valve 3 actings in conjunction, avoid half purified gas to directly the washing away of butterfly valve 3 well, thereby alleviated the damaged condition to the reduction valve group.
Shown in Fig. 1～4, on the inwall of air inlet flow tube 2 anti-wearing liner 7 can be set.
When being applied to the utility model reduction valve group on the half purified gas pipeline of metallurgy industry blast furnace gas behind gravitational dust collection, owing on the inwall of the utility model reduction valve group air inlet flow tube 2, inlayed anti-wearing liner 7, increase the anti-scouring capability of reduction valve group further, thereby prolonged the working life of reduction valve group.
When being applied to the utility model reduction valve group on the half purified gas pipeline of metallurgy industry blast furnace gas behind gravitational dust collection, half purified gas enters the reduction valve group by taper suction port 1, flow velocity reduces when being arranged at diversion column 6 on the air inlet flow tube 2 along diametric(al), fluidised form is changed, and afterwards, half purified gas after flow velocity reduces is through butterfly valve 3, flow velocity is reduced once more, at last, half purified gas just through flow tube 4 backs 5 outflows from the taper air outlet of giving vent to anger, is transported to and diffuses tower.
When the utility model reduction valve group was applied on the half purified gas pipeline of metallurgy industry blast furnace gas behind gravitational dust collection, prolonged working life greatly, generally can reach more than 18 months.
Certainly; the above is a preferred implementation of the present utility model; should be understood that; for those skilled in the art; under the prerequisite that does not break away from the utility model principle; can also make some improvements and modifications, these improvements and modifications also are considered as protection domain of the present utility model.
Claims (4)
1. reduction valve group, comprise the taper suction port, be connected a plurality of air inlet flow tubes, the taper air outlet on the described taper suction port bottom surface and be connected on the bottom surface, described taper air outlet and the identical flow tube of giving vent to anger of described air inlet flow tube quantity, described air inlet flow tube is connected with the corresponding described flow tube of giving vent to anger by butterfly valve respectively, and it is characterized in that: the mouth of pipe of described air inlet flow tube is provided with diversion column along diametric(al).
2. reduction valve group according to claim 1 is characterized in that: the diversion column on the described air inlet flow tube is less than or equal to the cross-section area of respective direction of the butterfly plate of the described butterfly valve that is connected with described air inlet flow tube by the cross-section area that cuts perpendicular to described diametric plane.
3. reduction valve group according to claim 1 is characterized in that: the inwall of described air inlet flow tube is provided with anti-wearing liner.
4. reduction valve group according to claim 3 is characterized in that: described anti-wearing liner is an integral body.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011200157029U CN201916553U (en) | 2011-01-18 | 2011-01-18 | Pressure reducing valve bank |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011200157029U CN201916553U (en) | 2011-01-18 | 2011-01-18 | Pressure reducing valve bank |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201916553U true CN201916553U (en) | 2011-08-03 |
Family
ID=44416349
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011200157029U Expired - Lifetime CN201916553U (en) | 2011-01-18 | 2011-01-18 | Pressure reducing valve bank |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201916553U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102586521A (en) * | 2011-01-18 | 2012-07-18 | 秦皇岛秦冶重工有限公司 | Pressure reducing valve bank |
-
2011
- 2011-01-18 CN CN2011200157029U patent/CN201916553U/en not_active Expired - Lifetime
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102586521A (en) * | 2011-01-18 | 2012-07-18 | 秦皇岛秦冶重工有限公司 | Pressure reducing valve bank |
| CN102586521B (en) * | 2011-01-18 | 2013-10-30 | 秦皇岛秦冶重工有限公司 | Pressure reducing valve bank |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20110803 Effective date of abandoning: 20131030 |
|
| RGAV | Abandon patent right to avoid regrant |