CN202252235U - Flow rate measuring and control device for diamond valve - Google Patents
Flow rate measuring and control device for diamond valve Download PDFInfo
- Publication number
- CN202252235U CN202252235U CN2011202957781U CN201120295778U CN202252235U CN 202252235 U CN202252235 U CN 202252235U CN 2011202957781 U CN2011202957781 U CN 2011202957781U CN 201120295778 U CN201120295778 U CN 201120295778U CN 202252235 U CN202252235 U CN 202252235U
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- valve
- pipeline
- valve plate
- plate
- flow rate
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Abstract
The utility model discloses a flow rate measuring and control device for a diamond valve. The flow rate measuring and control device comprises a valve body and a valve plate and is characterized by also comprising a wind differential pressure transducer, a valve front pipeline and a valve back pipeline, wherein a positive pressure interface of the wind differential pressure transducer is connected with an inner cavity of the valve front pipeline through a positive pressure connecting pipe, a negative pressure interface of the wind differential pressure transducer is connected with an inner cavity of the valve back pipeline through a negative pressure connecting pipe, the valve front pipeline is arranged at the front end of the valve body, and the valve back pipeline is arranged at the back end of the valve body. A flow passage formed by the valve plate and the valve body is in a square shape, two top points of the square shape are positioned on the highest point and the lowest point in the opening and closing direction of the valve plate, and in addition, the maximum value of the diagonal length equals to the inner diameter of the valve front pipeline or the valve back pipeline. The flow rate measuring and control device has the advantages that the structure is simple, compact and reasonable, the stability is good, the flow rate regulation range is wide, the metering precision is high, the air flow rate real-time regulation requirement of a sewage treatment accurate aeration system can be completely met, and in addition, the obvious energy saving effect is realized.
Description
Technical field
The utility model relates to a kind of flow measurement and control gear of rhombus valve, specifically is used on the accurate aerating system of sewage treatment accurately measuring and the isolated plant of control air flow, belongs to the mechanical structure technical field.
Background technique
In existing technology; In the accurate aerating system of sewage treatment, all adopt control valve and gas flowmeter to be installed in series, flowmeter is positioned on the export pipeline near control valve; The detected signal feed back of flowmeter is given intelligent automatic control system; By control system will with the corresponding order input control valve of technological requirement, make control valve action realizing instant adjusting, thereby satisfy in the sewage treatment process each stage the demands of different of air mass flow to flow.This flowmeter belongs to the thermal type flowmeter; Its principle is the variation of trying to achieve gas flow through the temperature variation of detecting head; Because the complexity of the motion of the pressure air in the pipeline and the nonuniformity of temperature distribution; Determined the measuring accuracy of this type of flowmeter low, poor stability, can't satisfy the accuracy of accurate aerating system to flow control, do not reach desirable energy-conservation requirement.
Summary of the invention
The purpose of the utility model is to overcome above-mentioned deficiency, thereby a kind of flow measurement and control gear of rhombus valve are provided, its good stability, and precision is high.
The technological scheme that provides according to the utility model; The flow measurement of rhombus valve and control gear comprise valve body, valve plate; In the said valve body valve plate is housed; Characteristic is: also comprise pipeline behind wind differential pressure transmitter, valve preceding pipeline and the valve, the positive pressure interface of said wind differential pressure transmitter is connected through the inner chamber of positive aluminium hydraulic pressed connecting pipe with the valve preceding pipeline, the negative pressure interface of said wind differential pressure transmitter through negative pressure take over valve after the inner chamber of pipeline be connected; Said valve preceding pipeline is arranged on the valve body front end, and pipeline is arranged on valve rear end behind the valve; The runner that said valve plate and valve body form is square, and foursquare wherein two summits are positioned on the highs and lows of keying direction of valve plate, and the maximum value of catercorner length equals internal diameter of the pipeline D behind valve preceding pipeline or the valve.
The tie point of said valve preceding pipeline is arranged on pipeline center's face vertical with the keying direction of valve plate, and with the axial distance of the median plane of valve plate be X.
Tie point behind the said valve on the pipeline is arranged on pipeline center's face vertical with the keying direction of valve plate, and with the axial distance of valve plate median plane be X.
Ratio X/D of internal diameter of the pipeline D is smaller or equal to 1 behind said axial distance X and valve preceding pipeline or the valve.Said valve plate is plate shaped, and valve plate thickness W is not more than 20mm.
Compared with present technology the utility model has the following advantages:
The utility model is simple in structure, compact, reasonable; Good stability, flow adjustment range is big, measuring accuracy is high, can satisfy the accurate aerating system of sewage treatment fully to the instant requirement of regulating of air mass flow, has remarkable energy saving effect.
Description of drawings
Fig. 1 is the structural representation of the utility model.
Fig. 2 is the A-A sectional view of Fig. 1.
Fig. 3 is the B-B sectional view of Fig. 1.
Embodiment
Following the utility model will combine accompanying drawing to further describe:
Like Fig. 1, Fig. 2, shown in Figure 3: it comprises that pipeline 5 behind valve body 1, seal ring 2, valve plate 3, valve preceding pipeline 4, the valve, wind differential pressure transmitter 6, positive aluminium hydraulic pressed connecting pipe 7, negative pressure take over 8 etc.
In the said valve body 1 valve plate 3 is housed, valve body 1 is provided with seal ring 2.The positive pressure interface of said wind differential pressure transmitter 6 is connected with the inner chamber of valve preceding pipeline 4 through positive aluminium hydraulic pressed connecting pipe 7; The negative pressure interface of said wind differential pressure transmitter 6 through negative pressure take over 8 with valve after the inner chamber of pipeline 5 be connected; Said valve preceding pipeline 4 is arranged on valve body 1 front end, and pipeline 5 is arranged on valve body 1 rear end behind the valve.Said valve plate 3 is plate shaped; Valve plate thickness W generally is not more than 20mm; Valve plate 3 is square with the runner that valve body 1 forms; Foursquare wherein two summits are positioned on the highs and lows of keying direction of valve plate 3, and the maximum value of catercorner length equals pipeline 5 inside diameter D behind valve preceding pipeline 4 or the valve.
The tie point of said valve preceding pipeline 4 is arranged on pipeline center's face vertical with the keying direction of valve plate 3, and with the axial distance of the median plane of valve plate 3 be X.Tie point behind the said valve on the pipeline 5 is arranged on pipeline center's face vertical with the keying direction of valve plate 3, and with the axial distance of valve plate 3 median planes be X.Ratio X/the D of pipeline 5 inside diameter D is smaller or equal to 1 behind axial distance X and valve preceding pipeline 4 or the valve.
Arrow Q is the pressure air flow direction.In the test and engineering practice of accurate aerating system; The aeration rate in each stage (being air mass flow) is different; When technological requirement changes flow; Differential pressure transmitter 6 can discern whether according with process requirements of instant flow for intelligent control system, system instant detected signal feed back automatically, and concurrent load instruction moves up and down valve plate 3; Aperture until valve plate 3 meets command request (valve plate 3 moves to dotted line position in like Fig. 3) fully, at this moment the instant flow of ducted air mass flow according with process requirements.
Claims (5)
1. the flow measurement of a rhombus valve and control gear; Comprise valve body (1), valve plate (3); Valve plate (3) is housed in the said valve body (1); It is characterized in that: also comprise pipeline (5) behind wind differential pressure transmitter (6), valve preceding pipeline (4) and the valve, the positive pressure interface of said wind differential pressure transmitter (6) is connected through the inner chamber of positive aluminium hydraulic pressed connecting pipe (7) with valve preceding pipeline (4), and the negative pressure interface of said wind differential pressure transmitter (6) takes over through negative pressure that the inner chamber of pipeline (5) is connected behind (8) and the valve; Said valve preceding pipeline (4) is arranged on valve body (1) front end, and pipeline behind the valve (5) is arranged on valve body (1) rear end; Said valve plate (3) is square with the runner that valve body (1) forms; Foursquare wherein two summits are positioned on the highs and lows of keying direction of valve plate (3), and the maximum value of catercorner length equals pipeline (5) inside diameter D behind valve preceding pipeline (4) or the valve.
2. the flow measurement of rhombus valve as claimed in claim 1 and control gear; It is characterized in that: the tie point of said valve preceding pipeline (4) is arranged on pipeline center's face vertical with the keying direction of valve plate (3), and with the axial distance of the median plane of valve plate (3) be X.
3. the flow measurement of rhombus valve as claimed in claim 1 and control gear; It is characterized in that: the tie point on the pipeline behind the said valve (5) is arranged on pipeline center's face vertical with the keying direction of valve plate (3), and with the axial distance of valve plate (3) median plane be X.
4. like the flow measurement and the control gear of claim 2 or 3 described rhombus valves, it is characterized in that: the ratio X/D of pipeline (5) inside diameter D is smaller or equal to 1 behind said axial distance X and valve preceding pipeline (4) or the valve.
5. the flow measurement of rhombus valve as claimed in claim 1 and control gear is characterized in that: said valve plate (3) is plate shaped, and valve plate (3) thickness W is not more than 20mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011202957781U CN202252235U (en) | 2011-08-13 | 2011-08-13 | Flow rate measuring and control device for diamond valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011202957781U CN202252235U (en) | 2011-08-13 | 2011-08-13 | Flow rate measuring and control device for diamond valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202252235U true CN202252235U (en) | 2012-05-30 |
Family
ID=46113477
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011202957781U Expired - Lifetime CN202252235U (en) | 2011-08-13 | 2011-08-13 | Flow rate measuring and control device for diamond valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202252235U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102734520A (en) * | 2012-07-10 | 2012-10-17 | 无锡杰尔压缩机有限公司 | V-shaped valve for measuring and controlling flow |
| CN103574082A (en) * | 2013-11-12 | 2014-02-12 | 无锡杰尔压缩机有限公司 | Throttling and pressure-reducing combined device of rhombic valve |
-
2011
- 2011-08-13 CN CN2011202957781U patent/CN202252235U/en not_active Expired - Lifetime
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102734520A (en) * | 2012-07-10 | 2012-10-17 | 无锡杰尔压缩机有限公司 | V-shaped valve for measuring and controlling flow |
| CN103574082A (en) * | 2013-11-12 | 2014-02-12 | 无锡杰尔压缩机有限公司 | Throttling and pressure-reducing combined device of rhombic valve |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C56 | Change in the name or address of the patentee | ||
| CP03 | Change of name, title or address |
Address after: 214101 No. 38, Qian Lian Road, Xishan Economic Development Zone, Xishan District, Jiangsu, Wuxi Patentee after: JIANGSU GL-TURBO CORPORATION Address before: 214192 Jiangsu Province, Wuxi city Xishan District of Xishan Economic Development Zone in three Furong Road No. 99 building six room 507 zuiun Patentee before: Wuxi Jieer Compressor Co., Ltd. |
|
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20120530 |