CN204142298U - A kind of inner chamber protector of Venturi tube - Google Patents
A kind of inner chamber protector of Venturi tube Download PDFInfo
- Publication number
- CN204142298U CN204142298U CN201420629615.6U CN201420629615U CN204142298U CN 204142298 U CN204142298 U CN 204142298U CN 201420629615 U CN201420629615 U CN 201420629615U CN 204142298 U CN204142298 U CN 204142298U
- Authority
- CN
- China
- Prior art keywords
- venturi tube
- end cap
- inner chamber
- positioning disk
- protector
- 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 - Fee Related
Links
Abstract
The utility model relates to a kind of inner chamber protector of Venturi tube; include Venturi tube; the two ends of described Venturi tube are fixed with the first end cap, the second end cap respectively; described first end covers and is provided with air intake opening; air intake opening place is provided with operation valve; the second described end cap is provided with pressure detection mouth, and pressure detection mouth place is provided with the tensimeter for detecting Venturi tube chamber pressure, the first described end cap, seals arrange between the second end cap and Venturi tube.Adopt technique scheme, the utility model provides a kind of inner chamber protector of Venturi tube, and can prevent it from getting rusty well, measuring accuracy be high, can not pollute medium.
Description
Technical field
The utility model relates to a kind of inner chamber protector of Venturi tube.
Background technology
Venturi tube is divided into concealed Venturi pipe and plug-in type Venturi tube by structure, in the boiler First air of the combustion air of steel plant's heat generator, cold wind, gas measurement (blast furnace gas, coke-oven gas, coal gas of converter) and cogeneration plant, Secondary Air Large Diameter Pipeline, low flow velocity pipeline measurement amount, have received good effect.But outside the inner chamber of Venturi tube is directly exposed to, long-time placement gets rusty easily, and makes its measuring accuracy low, and, can pollute medium.
Summary of the invention
The purpose of this utility model: in order to overcome the defect of prior art, the utility model provides a kind of inner chamber protector of Venturi tube, can prevent it from getting rusty well, measuring accuracy be high, can not pollute medium.
The technical solution of the utility model: a kind of inner chamber protector of Venturi tube, it is characterized in that: include Venturi tube, the two ends of described Venturi tube are respectively equipped with the first end cap, second end cap, first end cap, second end cap is fixedly connected with Venturi tube through locating device respectively, described first end covers and is provided with air intake opening, air intake opening place is provided with operation valve, the second described end cap is provided with pressure detection mouth, pressure detection mouth place is provided with the tensimeter for detecting Venturi tube chamber pressure, the first described end cap, seal between second end cap and Venturi tube and arrange.
Adopt technique scheme, during use, open operation valve, connect air compressor machine, extract the air of Venturi tube inner chamber out, as far as possible close to vacuum; Valve-off, connects nitrogen cylinder, opens valve, be inflated to about 10KPa; Valve-off, connects air compressor machine, opens valve, again extracts equipment inner chamber gas out; Valve-off, connect nitrogen cylinder, open valve, be inflated to about 10KPa ~ 100KPa, can prevent it from getting rusty well like this, measuring accuracy be high, can not pollute medium.
Further setting of the present utility model: described locating device includes positioning disk, bolt, nut, the sidewall of Venturi tube is provided with annular flange flange, the inner side end of positioning disk and annular flange flange is conflicted, and fixes between described positioning disk and the first end cap, between positioning disk and the second end cap through bolt, nut.
Adopt above-mentioned further setting, the locating device of this structure, structure is simple, and installation, convenient disassembly are more practical.
Setting further more of the present utility model: the internal diameter of described positioning disk is greater than the external diameter of Venturi tube, and the inner ring face of described positioning disk is provided with some flexure strips, and the outer wall of described flexure strip and described Venturi tube is conflicted.
Adopting and above-mentionedly to arrange further again, when installing positioning disk, being conflicted by flexure strip and Venturi tube outer wall, can prevent positioning disk generation axis from rocking, make its location more stable.
Of the present utility modelly further to arrange: the first described end cap, between the second end cap and Venturi tube, be equipped with O-ring seal.
Adopt and above-mentionedly further to arrange again, realize the first end cap by O-ring seal, sealing between the second end cap and Venturi tube arranges, structure is simple, good airproof performance.
Further setting of the present utility model: the first described end cap, the second end cap are equipped with seal groove, and the end face at described Venturi tube two ends is provided with inclined-plane, and described O-ring seal is pressed in seal groove through inclined-plane.
Adopt and above-mentionedly further to arrange again, by inclined-plane, O-ring seal is pressed in seal groove, makes the location of O-ring seal more reliable.
Accompanying drawing explanation
Fig. 1 is the schematic diagram of the utility model specific embodiment;
Fig. 2 is I part partial enlarged drawing in Fig. 1.
Embodiment
As Fig. 1, shown in 2, a kind of inner chamber protector of Venturi tube, include Venturi tube 1, the two ends of described Venturi tube 1 are respectively equipped with the first end cap 2, second end cap 3, first end cap 2, second end cap 3 is fixedly connected with Venturi tube 1 through locating device 6 respectively, the first described end cap 2 is provided with air intake opening 11, air intake opening 11 place is provided with operation valve 4, the second described end cap 3 is provided with pressure detection mouth 12, pressure detection mouth 12 place is provided with the tensimeter 5 for detecting Venturi tube 1 chamber pressure, the first described end cap 2, seal between second end cap 3 and Venturi tube 1 and arrange.During use, open operation valve 4, connect air compressor machine, extract the air of Venturi tube 1 inner chamber out, as far as possible close to vacuum; Valve-off, connects nitrogen cylinder, opens valve, be inflated to about 10KPa; Valve-off, connects air compressor machine, opens valve, again extracts equipment inner chamber gas out; Valve-off, connect nitrogen cylinder, open valve, be inflated to about 10KPa ~ 100KPa, can prevent it from getting rusty well like this, measuring accuracy be high, can not pollute medium.
In the utility model specific embodiment, described locating device 6 includes positioning disk 61, bolt 62, nut 63, the sidewall of Venturi tube 1 is provided with annular flange flange 64, annular flange flange 64 and Venturi tube 1 sidewall weld are fixed, positioning disk 61 is conflicted with the inner side end of annular flange flange 64, fixes between described positioning disk 61 and the first end cap 2, between positioning disk 61 and the second end cap 3 through bolt 62, nut 63.Wherein, the internal diameter of described positioning disk 61 is greater than the external diameter of Venturi tube 1, and the inner ring face of described positioning disk 61 is provided with some flexure strips 611, and described flexure strip 611 is conflicted with the outer wall of described Venturi tube 1.Like this, when installing positioning disk 61, being conflicted by flexure strip 611 and Venturi tube 1 outer wall, can prevent positioning disk 61 from producing and axially rocking, making its location more stable.
In the utility model specific embodiment, between the first described end cap 2, second end cap 3 and Venturi tube 1, be equipped with O-ring seal 7.The sealing realized between the first end cap 2, second end cap 3 and Venturi tube 1 by O-ring seal 7 is arranged, and structure is simple, good airproof performance.The first described end cap 2, second end cap 3 is equipped with seal groove 21,31, and the end face at described Venturi tube 1 two ends is provided with inclined-plane 13, and described O-ring seal 7 is pressed in seal groove 21,31 through inclined-plane 13.By inclined-plane 13, O-ring seal 7 is pressed in seal groove, makes the location of O-ring seal 7 more reliable.
Claims (5)
1. the inner chamber protector of a Venturi tube; it is characterized in that: include Venturi tube; the two ends of described Venturi tube are respectively equipped with the first end cap, the second end cap; first end cap, the second end cap are fixedly connected with Venturi tube through locating device respectively; described first end covers and is provided with air intake opening; air intake opening place is provided with operation valve; the second described end cap is provided with pressure detection mouth; pressure detection mouth place is provided with the tensimeter for detecting Venturi tube chamber pressure, the first described end cap, seals arrange between the second end cap and Venturi tube.
2. the inner chamber protector of Venturi tube according to claim 1; it is characterized in that: described locating device includes positioning disk, bolt, nut; the sidewall of Venturi tube is provided with annular flange flange; the inner side end of positioning disk and annular flange flange is conflicted, and fixes between described positioning disk and the first end cap, between positioning disk and the second end cap through bolt, nut.
3. the inner chamber protector of Venturi tube according to claim 2; it is characterized in that: the internal diameter of described positioning disk is greater than the external diameter of Venturi tube; the inner ring face of described positioning disk is provided with some flexure strips, and the outer wall of described flexure strip and described Venturi tube is conflicted.
4. the inner chamber protector of the Venturi tube according to claim 1 or 2 or 3, is characterized in that: the first described end cap, be equipped with O-ring seal between the second end cap and Venturi tube.
5. the inner chamber protector of Venturi tube according to claim 4; it is characterized in that: the first described end cap, the second end cap are equipped with seal groove; the end face at described Venturi tube two ends is provided with inclined-plane, and described O-ring seal is pressed in seal groove through inclined-plane.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420629615.6U CN204142298U (en) | 2014-10-28 | 2014-10-28 | A kind of inner chamber protector of Venturi tube |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420629615.6U CN204142298U (en) | 2014-10-28 | 2014-10-28 | A kind of inner chamber protector of Venturi tube |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204142298U true CN204142298U (en) | 2015-02-04 |
Family
ID=52418979
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420629615.6U Expired - Fee Related CN204142298U (en) | 2014-10-28 | 2014-10-28 | A kind of inner chamber protector of Venturi tube |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204142298U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2018232471A1 (en) * | 2017-06-23 | 2018-12-27 | Gary Stanley | A flange |
-
2014
- 2014-10-28 CN CN201420629615.6U patent/CN204142298U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2018232471A1 (en) * | 2017-06-23 | 2018-12-27 | Gary Stanley | A flange |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20150204 Termination date: 20171028 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |