CN2703926Y - High-torque large butterfly valve - Google Patents
High-torque large butterfly valve Download PDFInfo
- Publication number
- CN2703926Y CN2703926Y CN 200420067304 CN200420067304U CN2703926Y CN 2703926 Y CN2703926 Y CN 2703926Y CN 200420067304 CN200420067304 CN 200420067304 CN 200420067304 U CN200420067304 U CN 200420067304U CN 2703926 Y CN2703926 Y CN 2703926Y
- Authority
- CN
- China
- Prior art keywords
- spool
- valve
- transmission shaft
- valve core
- valve body
- 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
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Abstract
The utility model relates to a high-torque large butterfly valve. A valve core opening and closing device comprises a propeller shaft 5, a screw rod 6 and a draw rod 8, the propeller shaft 5 is fixed on a valve body 1 and is connected with a driving device out of the valve body. The draw rod 8 is vertically fixed on a valve core 3 at one side of the propeller shaft, one end of the screw rod 6 is matched with a nut 7 on the draw rod 8, and the other end is connected with the propeller shaft 5 via a universal coupling 4. Compared with the opening and closing mode of the valve core axle, the utility model can increase the starting torque about 10 times, the anti dust deposition ability can be increased, and the utility model can satisfy the requirements of flue gas pipeline in the field of nonferrous metallurgy industry and sulphuric acid industry, etc.
Description
Affiliated technical field the utility model relates to a kind of macrotype butterfly valve that is used for field major diameter high-temperature flue gas pipelines such as nonferrous smelting industry, sulfuric acid industry.
All there are shortcomings such as anti-laying dust ability, poor reliability in various degree in the butterfly valve that background technique is mainly used on field major diameter high-temperature flue gas pipelines such as nonferrous smelting industry, sulfuric acid industry at present.Characteristics such as corrosivity is strong because the fume pipe in fields such as nonferrous smelting industry, sulfuric acid industry exists, high temperature, dust-laden are big, laying dust is serious in the pipeline, cause valve opening and closing not smooth, even the phenomenon that valve is difficult to open occurs, existing various large-scale valves all can not meet the demands.
Summary of the invention is to be solved in the utility model to be the anti-laying dust ability of above-mentioned butterfly valve, open and close not smooth problem.
At have the shortcoming that butterfly valve exists now in the fume pipe environment in fields such as nonferrous smelting industry, sulfuric acid industry, the utility model provides a kind of high torque (HT) macrotype butterfly valve that spool is opened changes distance that increases: it comprises valve body, spool and spool start-stop device, spool is fixed in the body cavity by rotating shaft, the spool start-stop device is made up of transmission shaft, screw rod and pull bar, transmission shaft is fixed on the valve body by bearings, one end stretches in the body cavity of spool one side, and spatially vertical with valve core shaft, transmission shaft is connected with drive unit outside valve body; Pull bar is vertically fixed on the spool of transmission shaft one side, and pull bar is provided with the attaching nut; Screw rod one end cooperates with nut, and the other end links to each other with transmission shaft by universal joint.
Promote valve core rotation owing to adopt transmission shaft to rotate by universal joint drive screw rod, make to open and close and compare because the arm of force prolongs greatly with traditional valve core shaft opening/shutting mode, starting changes apart from increasing nearly ten times, anti-laying dust ability improves greatly, can satisfy the requirement of the fume pipe in fields such as nonferrous smelting industry, sulfuric acid industry, and structure is also very simple, easy to operate.
Description of drawings Fig. 1 is the utility model structural representation.
Fig. 2 be among Fig. 1 A to structural representation.
Fig. 3 be among Fig. 1 B to structural representation.
Fig. 4 is the utility model spool opening state schematic representation.
Embodiment the utility model high torque (HT) macrotype butterfly valve structure is by shown in Figure 1, spool [3] is fixed on the valve body [1] by valve core shaft [2], the spool start-stop device is made up of transmission shaft [5], screw rod [6] and pull bar [8], transmission shaft [5] is supported and fixed on the valve body [1] by bearing (among the figure draw in the end), one end stretches in the body cavity of spool one side, and spatially vertical with valve core shaft [2], transmission shaft is connected with drive unit (among the figure draw in the end) outside valve body; Pull bar [8] is vertically fixed on the outer end of the valve core diameter vertical with valve core shaft, the pull bar front end is provided with attaching nut [7], as shown in Figure 2, is fixed with rotating shaft [10] on the nut [7], the pull bar front end is connected with the collar [9] that cooperates with rotating shaft, makes pull bar and nut be hinged; Screw rod [6] one ends cooperate with nut [7], and the other end links to each other with transmission shaft [5] by universal joint [4], as shown in Figure 3.Spool shown in Fig. 1 [3] is in closed condition, transmission shaft during unlatching [5] is the rotation of direction shown in the arrow in figure, driving screw rod [6] by universal joint [4] rotates, make nut [7] move down at screw rod [6] upper edge screw axial, promote spool [3] and valve core shaft [2] rotating opening spool by pull bar [8], as shown in Figure 4; The transmission shaft counterrotating gets final product when closing.
Claims (2)
1, a kind of high torque (HT) macrotype butterfly valve, comprise valve body [1] and spool [3], spool [3] is fixed in valve body [1] inner chamber by rotating shaft [2], it is characterized in that it also comprises a spool start-stop device, this device is made up of transmission shaft [5], screw rod [6] and pull bar [8], and transmission shaft [5] is fixed on the valve body [1] by bearings, and an end stretches in the body cavity of spool [3] one sides, and spatially vertical with valve core shaft [2], transmission shaft is connected with drive unit outside valve body; Pull bar [8] is vertically fixed on the spool [3] of transmission shaft one side, and pull bar [8] is provided with attaching nut [7]; Screw rod [6] one ends cooperate with nut [7], and the other end links to each other with transmission shaft [5] by universal joint [4].
2, butterfly valve according to claim 1 is characterized in that described pull bar [8] is fixed on the outer end of the valve core diameter vertical with valve core shaft [2].
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200420067304 CN2703926Y (en) | 2004-06-02 | 2004-06-02 | High-torque large butterfly valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200420067304 CN2703926Y (en) | 2004-06-02 | 2004-06-02 | High-torque large butterfly valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2703926Y true CN2703926Y (en) | 2005-06-08 |
Family
ID=34777818
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200420067304 Expired - Fee Related CN2703926Y (en) | 2004-06-02 | 2004-06-02 | High-torque large butterfly valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2703926Y (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107537239A (en) * | 2017-09-29 | 2018-01-05 | 神华集团有限责任公司 | For the wheat flour purifier structure of pulverized coal preparation system and the powder removing method of pulverized coal preparation system |
-
2004
- 2004-06-02 CN CN 200420067304 patent/CN2703926Y/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107537239A (en) * | 2017-09-29 | 2018-01-05 | 神华集团有限责任公司 | For the wheat flour purifier structure of pulverized coal preparation system and the powder removing method of pulverized coal preparation system |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |