CN201028082Y - Differential pressure type continuous regulation valve - Google Patents
Differential pressure type continuous regulation valve Download PDFInfo
- Publication number
- CN201028082Y CN201028082Y CNU2007200956684U CN200720095668U CN201028082Y CN 201028082 Y CN201028082 Y CN 201028082Y CN U2007200956684 U CNU2007200956684 U CN U2007200956684U CN 200720095668 U CN200720095668 U CN 200720095668U CN 201028082 Y CN201028082 Y CN 201028082Y
- Authority
- CN
- China
- Prior art keywords
- end cap
- air inlet
- valve body
- eccentric
- cavity
- 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
Landscapes
- Sliding Valves (AREA)
Abstract
The utility model belongs to the throttling device field, in particular to a pressure difference type continuous control valve without power adjustment for powdery material flexibility atmospheric pressure conveying system, wherein, a valve body which is hermetically arranged between an air inlet end closure and an air outlet end closure is an eccentric valve body; an inner cavity of the eccentric valve body is an eccentric cylinder; a centre shaft of the air inlet end closure and the air outlet end closure is provided with a valve core capable of rotating in the inner cavity of the eccentric valve body; the valve core divides the inner cavity of the eccentric valve body into an upper reach cavity and a lower reach cavity; the upper reach cavity is communicated with an air inlet pipe nozzle by an air inlet hole on the air inlet end closure, and the lower reach cavity is directly communicated with an air outlet pipe nozzle; the valve core is provided with a spring. The utility model has the advantages of simple and unique structure and good whole performance, and can enormously improve the conveying efficiency of the powdery material flexibility conveying system, greatly save energy sources, lower cost and prolong service life of the conveying system; thereby, the utility model is an advanced and indispensable device in the present atmospheric pressure conveying system.
Description
Technical field
The utility model belongs to the throttling arrangement field, especially a kind of differential continuous modulating valve that need not to regulate power of special use in the flexible air-transport system of granular material.
Background technique
The throttling arrangement that often uses in air-transport system comprises at present: adjustable restrictive valve and various forms of orifice plate throttling element.Existing air-transport system takes place because gas flow and pressure in the conveyance conduit can not in time be controlled through regular meeting, and causes phenomenon of blocking in the pipeline when conveying powder material.In order to address this problem, guarantee smooth and easy the carrying out that transporting system is carried, a kind of new transporting system controlling method " the flexible air-transport system of granular material " has been come out.In this new method, need to install one can according to feed status (throughput and pressure) change adjust automatically open, the special-purpose throttling arrangement of aperture, its performance be existing various valve, throttling arrangement, orifice plate throttling element can not substitute and have.Though existing ratio adjusting valve can be adjusted aperture automatically, its structure is complicated, need control by electricity or other transfer modes, and cost is higher.Therefore develop a kind of simple, needn't adopt that electricity or other transfer modes are controlled, have can according to pipeline pressure change adjust automatically open, the special-purpose throttling arrangement of aperture be very important.
Summary of the invention
The purpose of this utility model is to overcome the deficiencies in the prior art, provide a kind of simple in structure, reasonable in design, directly change in the time of can utilizing pipeline pressure to change and the adjustment air inflow, transporting system is stablized remained on good feed status, to satisfy the unpowered differential continuous modulating valve of flexible conveying system needs.
The utility model solves its technical problem and is achieved through the following technical solutions:
A kind of differential continuous modulating valve, by the air inlet end cap, valve body, spool and exhaust end cap constitute, this air inlet end cap, valve body and the exhaust end cap is coaxial is installed together, the place, axle center of air inlet end cap is provided with the air inlet mouth of pipe, exhaust end covers exhaust pipe mouth is set, it is characterized in that: the valve body that sealing is installed between air inlet end cap and the exhaust end cap is that its inner chamber body is the eccentric valve body of eccentric cylinder, a spool that can rotate is installed at the axis place of air inlet end cap and exhaust end cap in the inner chamber body of this off-centre valve body, this spool is divided into upstream cavity and downstream cavity with eccentric valve intracoelomic cavity body, its upstream cavity covers made inlet hole by inlet end and is connected with the air inlet mouth of pipe, its downstream cavity directly is connected with exhaust pipe mouth, on this spool spring is installed.
And described air inlet end cap and exhaust end cap tighten together by uniform bolt and eccentric valve body thereon.
And, described spool by a central rotating shaft and its radially the made fan-shaped rotary valve plate of a side one constitute.
And exhaust end cap one end in central rotating shaft is axially installed with a rotating spring, and the other end of this rotating spring is installed in one of exhaust end cap and adjusts on the axle.
And, on the rotary valve plate of the downstream cavity of spool, a spring being installed, the other end of this spring is installed on the eccentric valve body.
And, the screw rod that can adjust initial air inflow radially is installed on eccentric valve body, the end overhead of this screw rod is on the rotary valve plate of upstream cavity one side.
And it can be circular that described inlet end covers the inlet hole that is shaped on, and also can be fan-shaped; Inlet hole can be one, also can be a plurality of combinations.
Advantage of the present utility model and beneficial effect are:
1. unpowered differential continuous modulating valve is installed on the pipeline, this differential continuous modulating valve can directly be adjusted the area of passage and the flow of air-flow in the pipeline according to the variation of pipeline pressure.Electricity or other transfer modes need not be passed through again, thereby good throughput coupling can be obtained.
2. owing to need not to regulate the differential continuous modulating valve of power and can control effectively to the gas flow in the pipeline, and the pressure in the controlling plumbing fixtures makes it remain on the optimum state effectively in the air-transport system of granular material, therefore avoid and susceptible to plugging phenomenon in the pipeline when having stopped conveying powder material, realized the flexible delivery of granular material.
3. uniqueness simple in structure of the present utility model, overall performance are good, can significantly improve the transfer efficiency of granular material transporting system, greatly save the energy, reduce cost, prolonging the working life of transporting system, is device advanced, necessary in the present air-transport system.
Description of drawings
Fig. 1 is a plan view of the present utility model;
Fig. 2 is that the A-A of Fig. 1 is to sectional view;
Fig. 3 is that the B-B of Fig. 2 is to sectional view;
Fig. 4 is the utility model embodiment 2 a sectional view.
Embodiment
The utility model is described in further detail below by specific embodiment, and following examples are descriptive, is not determinate, can not limit protection domain of the present utility model with this.
This is unpowered differential continuous modulating valve, constitute by air inlet end cap 6, valve body, spool and exhaust end cap 1, this air inlet end cap, valve body and the exhaust end cap is coaxial is installed together, air inlet end cap and exhaust end cap tighten together with valve body by uniform bolt 2 thereon, and valve seal is clamped therebetween.In order to guarantee the sealing effect of valve body, a seal ring (not shown) is installed all between valve body and inlet and outlet end cap.The place, axle center of air inlet end cap is provided with the air inlet mouth of pipe 5, and exhaust end covers exhaust pipe mouth 3 is set.
Innovative point of the present utility model is: the valve body that sealing is installed between air inlet end cap and the exhaust end cap is that its inner chamber body is the eccentric valve body 7 of eccentric cylinder.The spool that can rotate is installed at the axis place of air inlet end cap and exhaust end cap in the inner chamber body of this off-centre valve body.This spool is made of a central rotating shaft 8 and a fan-shaped rotary valve plate 12, and this central rotating shaft and fan-shaped rotary valve plate are for being made into integration, and this fan-shaped rotary valve plate is formed on a radially side of central rotating shaft.
Spool is divided into upstream cavity and downstream cavity with the inner chamber body of eccentric valve body, and its upstream cavity covers made inlet hole 11 by inlet end and is connected with the air inlet mouth of pipe, and this inlet hole can be circular, also can be fan-shaped (as shown in Figure 4) or other shapes; Inlet hole can be one, also can be a plurality of combinations.This inlet hole shape, size and quantity design according to parameter.The downstream cavity of the inner chamber body of eccentric valve body directly is connected with exhaust pipe mouth.
Spring is installed on the spool, and it has two kinds of mounting types: embodiment 1 (as shown in Figure 2), and close exhaust end cap one end in central rotating shaft is axially installed with a rotating spring 9, and the other end of this rotating spring is installed in one and adjusts on the axle 4.It is corresponding with the central rotating shaft position that this adjusts axle, and this adjustment spool is installed in exhaust end by pin and covers; Embodiment 2 (as shown in Figure 4) is equipped with a spring 13 on the rotary valve plate of the downstream cavity of spool, the other end of this spring is installed on the eccentric valve body.The effect of spring is: according to the best operational position of operating conditions regulating spool, to obtain best air feed parameter.
Because therefore the initial air inflow difference during actual the use in the pipeline is equipped with the screw rod 10 that can adjust initial air inflow on eccentric valve body, the end overhead of this screw rod is on the rotary valve plate of upstream cavity one side.
Working principle of the present utility model:
This differential continuous modulating valve that need not to regulate power is with the flange wafer type or be installed in the thread engagement mode on the admission line of transporting system.Because the angle difference that rotary valve plate is rotated in eccentric valve body, rotary valve plate is also different with respect to the gap of eccentric valve interior wall, thereby has obtained different area of passages.The rotation of rotary valve plate is controlled automatically by upstream and downstream pressure reduction again, and when upstream and downstream pressure reduction becomes big (when pipeline pressure reduces), rotary valve plate rotates to opening direction, and it is big that area of passage and air inflow also become thereupon; When upstream and downstream pressure reduction diminishes (when pipeline pressure increases), rotary valve plate rotates to closing direction, and area of passage and air inflow reduce thereupon.Pressure change when the utility model can be according to line transportation by the rotation of rotary valve plate, is directly controlled air inflow at any time, to reach the stable the optimum state that keeps of transporting system, thoroughly stops the purpose of line clogging.
Claims (7)
1. differential continuous modulating valve, by the air inlet end cap, valve body, spool and exhaust end cap constitute, this air inlet end cap, valve body and the exhaust end cap is coaxial is installed together, the place, axle center of air inlet end cap is provided with the air inlet mouth of pipe, exhaust end covers exhaust pipe mouth is set, it is characterized in that: the valve body that sealing is installed between air inlet end cap and the exhaust end cap is that its inner chamber body is the eccentric valve body of eccentric cylinder, a spool that can rotate is installed at the axis place of air inlet end cap and exhaust end cap in the inner chamber body of this off-centre valve body, this spool is divided into upstream cavity and downstream cavity with eccentric valve intracoelomic cavity body, its upstream cavity covers made inlet hole by inlet end and is connected with the air inlet mouth of pipe, its downstream cavity directly is connected with exhaust pipe mouth, on this spool spring is installed.
2. differential continuous modulating valve according to claim 1 is characterized in that: described air inlet end cap and exhaust end cap tighten together by uniform bolt and eccentric valve body thereon.
3. differential continuous modulating valve according to claim 1 is characterized in that: described spool by a central rotating shaft and its radially the made fan-shaped rotary valve plate of a side one constitute.
4. differential continuous modulating valve according to claim 3 is characterized in that: exhaust end cap one end in central rotating shaft is axially installed with a rotating spring, and the other end of this rotating spring is installed in one of exhaust end cap and adjusts on the axle.
5. differential continuous modulating valve according to claim 3 is characterized in that: on the rotary valve plate of the downstream cavity of spool a spring is installed, the other end of this spring is installed on the eccentric valve body.
6. differential continuous modulating valve according to claim 1 is characterized in that: the screw rod that can adjust initial air inflow radially is installed on eccentric valve body, and the end overhead of this screw rod is on the rotary valve plate of upstream cavity one side.
7. differential continuous modulating valve according to claim 1 is characterized in that: it can be circular that described inlet end covers the inlet hole that is shaped on, and also can be fan-shaped; Inlet hole can be one, also can be a plurality of combinations.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007200956684U CN201028082Y (en) | 2007-04-02 | 2007-04-02 | Differential pressure type continuous regulation valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007200956684U CN201028082Y (en) | 2007-04-02 | 2007-04-02 | Differential pressure type continuous regulation valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201028082Y true CN201028082Y (en) | 2008-02-27 |
Family
ID=39132294
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2007200956684U Expired - Fee Related CN201028082Y (en) | 2007-04-02 | 2007-04-02 | Differential pressure type continuous regulation valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201028082Y (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114767307A (en) * | 2016-01-25 | 2022-07-22 | 洁碧有限公司 | Reduced form factor oral irrigator |
-
2007
- 2007-04-02 CN CNU2007200956684U patent/CN201028082Y/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114767307A (en) * | 2016-01-25 | 2022-07-22 | 洁碧有限公司 | Reduced form factor oral irrigator |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN2204898Y (en) | Proportional flow controlling valve | |
| WO2018196479A1 (en) | Pneumatic conveying feeder and transfer pipe connecting structure | |
| CN209177581U (en) | Full packages ultra-dense phase is energy-efficient to control the defeated grey the powder system of stifled abrasionproof pilot-operated type | |
| CN103968090B (en) | Butterfly-lock formula choke valve | |
| CN206175730U (en) | Be used for air conveying material pipeline auto -change over device | |
| CN201028082Y (en) | Differential pressure type continuous regulation valve | |
| CN203836242U (en) | Butterfly-gate-type throttle valve | |
| CN206398100U (en) | One kind, which is vacuumized, uses suction type regulating valve | |
| CN208487214U (en) | A kind of choke valve suitable for pneumatic conveying | |
| CN209800775U (en) | Safe sealing angle valve | |
| CN207421334U (en) | A kind of adjustable exhaust valve | |
| CN208417586U (en) | A kind of small fire regulating valve and a kind of novel flow rate valve | |
| CN221743217U (en) | Multi-stage flow-regulating angle throttle valve | |
| CN219155864U (en) | Powder pneumatic conveying pipeline switching valve | |
| CN213039874U (en) | Novel sanding powder three-way distributing valve | |
| CN221120985U (en) | Cock baiting valve | |
| CN213140595U (en) | High-efficient loading attachment of convenient dismouting | |
| CN212791467U (en) | Novel farmland water-saving pipeline spray head | |
| CN220102096U (en) | Two-way sealing butterfly valve | |
| CN110185820A (en) | Disjunctor valve ahead of gas stove | |
| CN218564424U (en) | Sleeve type valve core throttle valve | |
| CN216343944U (en) | Industrial chemical valve | |
| CN220017641U (en) | Split type air quantity regulating valve | |
| CN218146519U (en) | Glove box transition chamber sealing door structure | |
| CN202203593U (en) | Novel divisional adjusting pipe |
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: 20080227 Termination date: 20110402 |