CN201827389U - Low noise butterfly valve - Google Patents
Low noise butterfly valve Download PDFInfo
- Publication number
- CN201827389U CN201827389U CN2010205352803U CN201020535280U CN201827389U CN 201827389 U CN201827389 U CN 201827389U CN 2010205352803 U CN2010205352803 U CN 2010205352803U CN 201020535280 U CN201020535280 U CN 201020535280U CN 201827389 U CN201827389 U CN 201827389U
- Authority
- CN
- China
- Prior art keywords
- butterfly
- noise
- valve
- butterfly board
- rectification
- 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
Images
Landscapes
- Details Of Valves (AREA)
- Lift Valve (AREA)
Abstract
The utility model relates to a low noise butterfly valve, which comprises a valve body, a valve rod and a butterfly board. A front upstream side and a back downstream side of the butterfly board are respectively provided with a plurality of rectifying noise reducing boards. The rectifying noise reducing boards are uniformly provided with a plurality of rectifying noise reducing holes and are fixedly arranged on the butterfly board through bolts. The butterfly board dredges water current, improves current state and prevents gas etching and vortex phenomenon in the on and off process, consequently the vibration of the butterfly board and noise are reduced, the structure becomes simple and the cost becomes low. The utility model is applicable to metallurgy industry, chemical industry, electric power plant, water works and other working conditions which need noise and vibration reduction.
Description
Technical field
The utility model relates to a kind of butterfly valve, particularly about a kind of low noise butterfly valve.The utility model is applicable to that metallurgy, chemical industry, power and water plants etc. need noise reduction, vibration damping operating mode to use.
Background technique
Present domestic low noise butterfly valve generally has two kinds of structures, a kind of is that noise reducing plate or baffler are installed in the downstream line of butterfly valve, as patent publication No. is the noise reduction gas butterfly valve of CN101162053A, portion is fixed with hush pipe at valve rear end, be provided with the rectification cup in the hush pipe, the cup tube of rectification cup is tapered, the less end of diameter connects the cup end, the end that diameter is bigger is fixed on the described hush pipe inwall, and be positioned near valve body one side, the cup tube and the cup of rectification cup are evenly distributed with some rectification hole at the end, have solved the stream of breathing heavily of air-flow, the turbulent flow problem makes coal gas weaken significantly by the stream impact noise of breathing heavily of valve.This structure makes the product structure complexity, increases product cost.Another kind is that the butterfly plate structure is improved, and is the surge-proof butterfly valve of CN101126457A as patent publication No., is provided with guide plate at the back side of valve plate along the valve plate edge, and guide plate is provided with conduction hole, has effectively alleviated turbulent phenomenon, reduces vibration, reduces noise.But this structure will be improved design to the butterfly plate structure, makes the butterfly plate complex structure, has improved manufacture cost.
Summary of the invention
The purpose of this utility model is the shortcoming that exists at prior art, and the low noise butterfly valve that a kind of noise is low, vibration is little, simple in structure, cost is low is provided.
The technical solution of the utility model comprises valve body, valve rod, butterfly plate, mainly be several layers rectification acoustical panel to be set respectively at butterfly plate front upstream side and reverse side downstream side, evenly be shaped on some rectification bloops on the described rectification acoustical panel, and be installed on the butterfly plate by bolt.
The utility model has the advantages that at butterfly plate front upstream side and reverse side downstream side and by bolt the rectification acoustical panel is installed respectively, make butterfly plate in opening-closing process, comb water guide stream, improve fluidised form, prevent cavitation erosion and vortex phenomenon, thereby reduce the butterfly plate vibration, reduce noise, and simple in structure, cost is low.
Description of drawings
Fig. 1 is a structural representation of the present utility model.
Embodiment
Low noise butterfly valve as shown in Figure 1, comprise valve body 1, valve rod 5, butterfly plate 2, at butterfly plate front upstream side and reverse side downstream side several layers rectification acoustical panel 3 is set respectively, evenly is shaped on some rectification bloops on the described rectification acoustical panel, be fixedly mounted on the butterfly plate 2 by bolt 4.The number of plies of rectification acoustical panel 3 is provided with according to the difference of butterfly valve caliber size, and aperture of rectification bloop is provided with according to the difference of butterfly valve caliber size above it.Seal ring 6 is installed, the sealing surface of sealing circle 6 and the valve body 1 formation sealing pair that cooperatively interacts on the butterfly plate 2.Described butterfly plate front upstream side refers to that butterfly plate 2 is in a side of runner upstream when opening; And butterfly plate reverse side downstream side refers to that butterfly plate 2 is in a side in runner downstream when opening.
Claims (1)
1. low noise butterfly valve, comprise valve body (1), valve rod (5), butterfly plate (2), it is characterized in that several layers rectification acoustical panel (3) being set respectively at butterfly plate front upstream side and reverse side downstream side, evenly be shaped on some rectification bloops on the described rectification acoustical panel, and be fixedly mounted on the butterfly plate (2) by bolt (4).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010205352803U CN201827389U (en) | 2010-09-20 | 2010-09-20 | Low noise butterfly valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010205352803U CN201827389U (en) | 2010-09-20 | 2010-09-20 | Low noise butterfly valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201827389U true CN201827389U (en) | 2011-05-11 |
Family
ID=43965925
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010205352803U Expired - Fee Related CN201827389U (en) | 2010-09-20 | 2010-09-20 | Low noise butterfly valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201827389U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103174874A (en) * | 2013-04-02 | 2013-06-26 | 环球阀门集团有限公司 | Low-noise line pipe butterfly valve |
| CN104713262A (en) * | 2013-12-11 | 2015-06-17 | Gvt有限公司 | Cryocooler for noise and vibration reduction and cryopump including the same |
| CN108612880A (en) * | 2018-05-28 | 2018-10-02 | 珠海格力电器股份有限公司 | Kitchen ventilator check-valves and kitchen ventilator |
-
2010
- 2010-09-20 CN CN2010205352803U patent/CN201827389U/en not_active Expired - Fee Related
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103174874A (en) * | 2013-04-02 | 2013-06-26 | 环球阀门集团有限公司 | Low-noise line pipe butterfly valve |
| CN103174874B (en) * | 2013-04-02 | 2014-12-24 | 环球阀门集团有限公司 | Low-noise line pipe butterfly valve |
| CN104713262A (en) * | 2013-12-11 | 2015-06-17 | Gvt有限公司 | Cryocooler for noise and vibration reduction and cryopump including the same |
| CN104713262B (en) * | 2013-12-11 | 2017-04-12 | Gvt有限公司 | Cryocooler for noise and vibration reduction and cryopump including the same |
| CN108612880A (en) * | 2018-05-28 | 2018-10-02 | 珠海格力电器股份有限公司 | Kitchen ventilator check-valves and kitchen ventilator |
| CN108612880B (en) * | 2018-05-28 | 2024-03-29 | 珠海格力电器股份有限公司 | Range hood check valve and range hood |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN101725740B (en) | Impeller type water hammer-resistant mute check valve | |
| KR101327340B1 (en) | Direct-connection low-speed small mixed-flow hydroturbine for hydrodynamic energy-saving cooling tower | |
| CN201827389U (en) | Low noise butterfly valve | |
| CN101737533B (en) | Water hammer-resistant mute check valve | |
| CN201723796U (en) | Anechoic check valve | |
| CN203531058U (en) | One-hole or multi-hole air injection water-saving and pressurizing faucet water outlet nozzle | |
| CN202812636U (en) | Noise reduction device for outlet of ship drainage pipeline | |
| CN203009310U (en) | Cavitation-resistant type vane pump | |
| CN109229271A (en) | A kind of drag reduction mechanism peculiar to vessel | |
| CN102207092B (en) | High-concentration centrifugal pulp pump capable of spraying water on outer corner | |
| CN202081945U (en) | Novel automobile decorative tail pipe | |
| CN203146407U (en) | Rear vertical shaft tubular pump device with front guide vane | |
| CN204730736U (en) | A kind of flushing plate type heat exchanger | |
| CN103174874B (en) | Low-noise line pipe butterfly valve | |
| CN202598109U (en) | Draining valve with a plurality of stages of throttle orifice plates | |
| CN206221344U (en) | Energy-efficient automobile engine cooling water pump | |
| CN202370738U (en) | Hydraulic power generation device | |
| CN212155267U (en) | Tailing slurry pressurizing centrifugal water pump | |
| JP6478228B2 (en) | Stern shape and ship with stern duct and fins | |
| CN101776165B (en) | Waterproof hammer muting check valve with impeller type case | |
| CN215891359U (en) | Three-way pipeline valve capable of improving pressure distribution | |
| CN205446855U (en) | Valve body of turbulent device is prevented in area | |
| CN201953547U (en) | Water turbine runner with water outlet guide vanes | |
| CN108974305B (en) | Resonance silencing inter-board flow channel | |
| CN209687804U (en) | A kind of guide-vane compressor fore filter |
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: 20110511 Termination date: 20130920 |