CN202302003U - Big-caliber butterfly valve - Google Patents
Big-caliber butterfly valve Download PDFInfo
- Publication number
- CN202302003U CN202302003U CN2011203522255U CN201120352225U CN202302003U CN 202302003 U CN202302003 U CN 202302003U CN 2011203522255 U CN2011203522255 U CN 2011203522255U CN 201120352225 U CN201120352225 U CN 201120352225U CN 202302003 U CN202302003 U CN 202302003U
- Authority
- CN
- China
- Prior art keywords
- valve
- flap
- clack
- valve clack
- butterfly 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 - Fee Related
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Abstract
The utility model discloses a big-caliber butterfly valve, which comprises a valve body, a valve rod and a valve clack, wherein the valve rod extends downwards into a fluid channel of the valve body and is matched with the valve body through threads, the valve clack is fixedly connected to the lower end of the valve rod, the valve clack is positioned in the fluid channel and is matched with the inner wall of the fluid channel in a sealing mode, an annular sealing ring is arranged around the edge of the valve clack, and the surface of the valve clack is provided with an annular reinforcing rib and a strip-shaped reinforcing rib. The big-caliber butterfly valve disclosed by the utility model has a simple structure, a good sealing performance and high valve clack strength, the anti-stress capacity of the valve clack is improved through the annular reinforcing rib and the strip-shaped reinforcing rib so as to prevent the valve clack from cracking under the impact of strong pressure, and the service life of the valve is greatly prolonged.
Description
Technical field
The utility model relates to a kind of large-diameter butterfly valve.
Background technique
Large-diameter butterfly valve is simple in structure, volume is little, in light weight, only form by few parts.And only need half-twist to get final product fast opening and closing, simple to operate, this valve has good fluid control characteristic simultaneously.When butterfly valve was in full open position, butterfly plate thickness was MEDIA FLOW unique resistance when valve body, therefore fall through the pressure that this valve produced very little, so have metering characteristics preferably.Butterfly valve has two kinds of seals style of sealing of bullet sealing and metal.Elastic packing valve, seal ring can be embedded on the valve body or be attached to the butterfly plate periphery.
Adopt the valve of metallic seal generally long, but be difficult to accomplish to seal fully than the life of valve of elastic packing.Metallic seal can adapt to higher operating temperature, and elastic packing then has the defective of the temperature limitation of receiving.
If require butterfly valve to use as flow control, main is size and the type of correctly selecting valve.The structural principle of butterfly valve especially is fit to make large-diameter butterfly valve.Butterfly valve not only is used widely on general industries such as oil, coal gas, chemical industry, water treatment, but also is applied to the cooling water system of cogeneration power plant.
The model utility content
The purpose of the utility model provides a kind of large-diameter butterfly valve, and the sealing that solves existing large-diameter butterfly valve is not good, the problem of flap easy-rupturing.
The technological scheme of the utility model is following:
A kind of large-diameter butterfly valve; Include valve body, valve rod and flap; Described valve rod extend downwardly in the fluid passage of valve body and with the valve body screw-thread fit, described flap is fixedly connected on the lower end of valve rod, it is characterized in that: described flap is positioned at the fluid passage and cooperates with the inner wall sealing of fluid passage; Edge around flap is provided with O-ring seal, and the surface of said flap is provided with ring stiffener and bar shaped stiffening rib.
Described large-diameter butterfly valve is characterized in that: the two ends of said fluid passage are respectively equipped with fitting seat.
The beneficial effect of the utility model:
The utility model is simple in structure, good airproof performance, and flap intensity is high, and ring stiffener and bar shaped stiffening rib have improved the anti-stress of flap, thereby make flap under the impact of strong pressure, can not produce fracture, have prolonged the working life of valve greatly.
Description of drawings
Fig. 1 is the utility model structural representation.
Embodiment
Referring to Fig. 1; A kind of large-diameter butterfly valve includes valve body 1, valve rod 2 and flap 3, valve rod 2 extend downwardly in the fluid passage 4 of valve body 1 and with valve body 1 screw-thread fit; Flap 3 is fixedly connected on the lower end of valve rod 2; Flap 3 is positioned at fluid passage 4 and cooperates with the inner wall sealing of fluid passage 4, and the edge that centers on flap 3 is provided with O-ring seal 5, and the surface of flap 3 is provided with ring stiffener 6 and bar shaped stiffening rib 7.
Further, the two ends of fluid passage 4 are respectively equipped with fitting seat 8.
Claims (2)
1. large-diameter butterfly valve; Include valve body, valve rod and flap; Described valve rod extend downwardly in the fluid passage of valve body and with the valve body screw-thread fit, described flap is fixedly connected on the lower end of valve rod, it is characterized in that: described flap is positioned at the fluid passage and cooperates with the inner wall sealing of fluid passage; Edge around flap is provided with O-ring seal, and the surface of said flap is provided with ring stiffener and bar shaped stiffening rib.
2. large-diameter butterfly valve according to claim 1 is characterized in that: the two ends of said fluid passage are respectively equipped with fitting seat.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011203522255U CN202302003U (en) | 2011-09-20 | 2011-09-20 | Big-caliber butterfly valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011203522255U CN202302003U (en) | 2011-09-20 | 2011-09-20 | Big-caliber butterfly valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202302003U true CN202302003U (en) | 2012-07-04 |
Family
ID=46370901
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011203522255U Expired - Fee Related CN202302003U (en) | 2011-09-20 | 2011-09-20 | Big-caliber butterfly valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202302003U (en) |
-
2011
- 2011-09-20 CN CN2011203522255U patent/CN202302003U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20120704 Termination date: 20120920 |