CN203670911U

CN203670911U - Duckbill valve with adjustable flow

Info

Publication number: CN203670911U
Application number: CN201320641127.2U
Authority: CN
Inventors: 池万青
Original assignee: 池万青
Current assignee: Zhejiang Lianchi Water Equipment Co., Ltd.
Priority date: 2013-10-17
Filing date: 2013-10-17
Publication date: 2014-06-25
Anticipated expiration: 2023-10-17

Abstract

The utility model discloses a duckbill valve with the adjustable flow. The duckbill valve comprises a valve body and a flow regulator, wherein the flow regulator is arranged in the valve body, the valve body sequentially comprises an inlet section, an elastic flat-cone-shaped transition section and an elastic flat outlet section, the flow regulator comprises an outer pipe and an inner pipe, the outer pipe and the inner pipe are connected in a sleeved mode, a gap is formed between the inner wall of the outer pipe and the outer wall of a connection section, media can flow through the gap, at least one flow division hole is formed in the side wall of the connection section, and is communicated with the gap, an outlet hole is formed in the lower end of the outer pipe, the media can flow out through the outlet hole, the outlet hole is formed in the transition section (12), and the lower end of the connection section is provided with a plugging end used for plugging the outlet hole. According to the duckbill valve with the adjustable flow, the flow can be adjusted as needed so as to be applicable to different working environments; due to the fact that the flow regulator is arranged in the valve body, the circulation track of the media is changed, a gap in a valve mouth cannot deform due to large-area medium circulation, and the service life is prolonged.

Description

Adjustable-flow duckbill Valve

Technical field

The utility model relates to valve and manufactures field, especially relates to a kind of adjustable-flow duckbill Valve.

Background technique

Existing flexible duckbill check valve is a kind of valve that allows medium to do one-way flow, is widely used in the conveying of the various media such as water, gas; It adopts elastic material to make, and the valve nozzle place of flat has a gap, and in the time that medium pressurized passes valve body, open in this gap, and medium passes through valve body smoothly; In the time that valve body quits work, when the inside and outside pressure balanced of valve body or external pressure are greater than interior pressure, gap relies under elastic force and external pressure effect closed, stops medium back flow inlet valve body, reaches the effect of non-return.

In recent years, duckbill check valve is applied to be used in the aeration tank of sewage treatment, and gas transfers to duckbill check valve through aeration tube, sprays in the body of pond via the valve nozzle place of duckbill Valve; Duckbill Valve is non-stop run in 24 hours in aeration tank, gap, valve nozzle place is for a long time in stressed open configuration, in addition the material of valve body itself is easily aging or be corroded, cause gap increasing, final lost its bounce, make the valve body cannot tight close, in the aqueous reflux inlet valve body in pond and damage valve, so there is the inhomogeneous phenomenon of aeration in aeration tank.

Model utility content

The utility model, in order to overcome the deficiencies in the prior art, provides a kind of long-time adjustable-flow duckbill Valve that causes valve nozzle metaboly that uses that prevents.

To achieve these goals, the utility model is by the following technical solutions: a kind of adjustable-flow duckbill Valve, comprise valve body and be located at the flow regulator in valve body, valve body comprises the changeover portion of inducer, the flat taper of elasticity and the outlet section of flexible flat shape successively, and described flow regulator comprises outer tube and the inner tube of mutual socket; Between outer tube wall and the outer wall of linkage section, be provided with the gap for medium circulation, the sidewall of linkage section is provided with at least one tap hole being communicated with gap; Outer tube underpart is provided with the exit orifice flowing out for medium, and exit orifice is placed in changeover portion 12; Linkage section underpart has the shutoff end for this exit orifice of shutoff.

Further, linkage section and/or inner tube are provided with the regulation structure for controlling this shutoff end and exit orifice spacing.

As preferably, described regulation structure is the internal thread of being located at the outside thread of linkage section outer wall and being located at outer tube wall.

The outer end of described outer tube is provided with and protrudes from valve body prolonged section, and described inner tube is connected with medium transport pipe.

On described outer tube wall, be along outer tube diameter to the flange collar arranging with linkage section contacting point.

Or further, described regulation structure is to be located at the locking nut being sheathed on linkage section, one end of this locking nut is connected with linkage section, and the other end is connected with the outer end of outer tube.

Described tap hole serve as reasons interior to outer media flow direction tilt inclined hole.

The end of described shutoff end is provided with seal washer, on described exit orifice, is provided with seal ring with shutoff end corresponding part.

Further, the inwall of the inducer of described valve body and/or outer wall are roughened surface.

The inducer of described valve body is arranged with outward strengthens hoop.

In sum, the utlity model has following advantage: 1. adjust flux size as required, to be suitable for different working environments; 2. by being located at the flow regulator in valve body, change the circulation track of medium, the gap at valve nozzle place can be out of shape because of large-area medium circulation, extended working life; 3. pass through to control the flow of fluid, thereby make the aeration oxygen amount in pond reach sufficient utilization, greatly increased microbial activity; 4. thoroughly solved the inhomogeneous problem of whole pond aeration, made whole pond aeration reach full and uniform; 5. because oxygen amount is fully used, improve purification efficiency, reduced cost of production, there is obvious effect of energy.

Brief description of the drawings

Fig. 1 is structural representation of the present utility model.

Embodiment

In order to make those skilled in the art person better understand the utility model scheme, below in conjunction with the accompanying drawing in the utility model embodiment, the technological scheme in the utility model embodiment is carried out to clear, complete description.

As shown in Figure 1, a kind of adjustable-flow duckbill Valve, comprise valve body 1 and be located at the flow regulator in valve body 1, valve body 1 comprises the changeover portion 12 of inducer 11, the flat taper of elasticity and the outlet section 13 of flexible flat shape successively, described flow regulator comprises outer tube 2 and the inner tube 3 of mutual socket, and inner tube 3 lower ends have the linkage section 31 being coated by outer tube 2; Between outer tube 2 inwalls and the outer wall of linkage section, be provided with the gap 23 for medium circulation, concrete, on described outer tube 2 inwalls with linkage section 31 contacting points (being the outer end of outer tube), be provided with the flange collar 25 that a circle radially arranges along outer tube 2, be connected with linkage section by this flange collar, so can form certain gap 23 between the inner of outer tube and linkage section for medium circulation, obviously, also taper can be arranged to in the inner of outer tube, can produce equally gap; On the sidewall of linkage section, be symmetrically distributed with two tap holes 32 that are communicated with gap 23, outer tube 2 underparts are provided with the exit orifice 22 flowing out for medium, and this exit orifice is placed in changeover portion 12, and linkage section underpart has the shutoff end 33 for this exit orifice 22 of shutoff; The setting of this flow regulator, change the circulation track of medium, discharge to outlet section from original diffusivity, till now centralized flowed out to part, reduce the impact force to outlet section 13 peripheries, avoided cracking that outlet section causes because of the long-time and comprehensive impact of medium, the problem such as follow the string; Duckbill Valve after improvement has been concentrated the circulating direction of medium, medium flows out in the middle of valve outlet section, the amplitude of opening of both sides is originally so not large, so the impact force that outlet section periphery is subject to reduces a lot, effectively avoid losing because opening transition the problem of restoring force, use in aeration tank for a long time, without replacing, also there will not be aeration non-uniform phenomenon; Linkage section and/or inner tube are provided with the regulation structure for controlling this shutoff end 33 and exit orifice 22 spacing, cooperation distance between the adjustable inner and outer pipes of this regulation structure, move inward inner tube or outside mobile outer tube, all can change the cooperation distance between inner and outer pipes, and then change spacing between exit orifice 22 and shutoff end 33, to regulate the uninterrupted of medium; In the time that shutoff end 33 and exit orifice 22 closely cooperate, valve closing, in the time that between shutoff end 33 and exit orifice 22, distance widens, MEDIA FLOW flux is larger, can be according to different Environmental Conditions adjust fluxes, as regulated aeration degree according to the difference of content of organics in cesspool, give microorganism most suitable aeration rate, save the trouble of changing valve, saved cost, improved working efficiency;

Concrete, described regulation structure is the internal thread of being located at the outside thread of linkage section outer wall and being located at outer tube wall.In other embodiments, described regulation structure is to be located at the locking nut being sheathed on linkage section, one end of this locking nut is connected with linkage section, the other end is connected with the outer end of outer tube, while needing adjust flux, unclamp locking nut, after the distance between mobile inner and outer pipes, again screw locking nut;

In the present embodiment, what adopt is the mode that inner tube is connected with the delivery pipe (as aeration tube) of medium, the outer end of outer tube has the prolonged section 24 stretching out in outside valve body 1, it is convenient that this Placement is adjusted flow, when adjustment, can adjust flow by rotating this prolonged section 24, avoided screwing valve body and cause between valve body and outer tube being connected loosening; Inner tube is had relatively high expectations with the tightness that coordinates of external pipe connection synapsis, also can between inner tube and linkage section, seal washer be set; Obviously, by inner tube integral coating, in outer tube, outer tube is connected with delivery pipe, and this Placement also belongs to protection domain of the present utility model, but its flow is adjusted inconvenience.Also having one is also to select inner tube to be connected with delivery pipe, but outer tube there is no prolonged section, so the outer wall of delivery pipe is connected with valve body, while needing Flow-rate adjustment, screw outer tube and regulate from entering in valve nozzle, be not also to facilitate especially, but can reach the effect increasing the service life equally.

Further, in order to be conducive to medium circulation, the described tap hole 32 interior inclined hole tilting to outer media flow direction of serving as reasons, exit orifice is interior large outer little cone shape hole, is conducive to concentrate the dynamics ejecting of medium.

The end of described shutoff end 33 is provided with seal washer 34, on described exit orifice 22, be provided with seal ring 25 with shutoff end 33 corresponding parts, to improve tightness, in the time that inner tube lower end is pushed into outer tube end, realize the shutoff of valve, when the valve nozzle place of valve body damages cannot non-return time, can realize throttle down by the shutoff of shutoff end, compared to the traditional duckbill Valve that cannot close, safer, there is better practicability.

The inducer 11 of described valve body has latticed coarse inwall 111 and coarse outer wall 112, is conducive to coordinating between inwall and outer tube or delivery pipe, and outer wall is made as coarse, is beneficial to and strengthens the fixing of hoop, prevents valve body entrance point cracking, increases the service life.

Obviously, described embodiment is only a part of embodiment of the present utility model, instead of whole embodiments.Based on the embodiment in the utility model, those of ordinary skill in the art are not making the every other embodiment who obtains under creative work prerequisite, all should belong to the scope of the utility model protection.

Claims

1. an adjustable-flow duckbill Valve, comprise valve body (1) and be located at the flow regulator in valve body (1), valve body (1) comprises the changeover portion (12) of inducer (11), the flat taper of elasticity and the outlet section (13) of flexible flat shape successively, it is characterized in that: described flow regulator comprises outer tube (2) and the inner tube (3) of mutual socket; Between outer tube (2) inwall and the outer wall of linkage section, be provided with the gap (23) for medium circulation, the sidewall of linkage section is provided with at least one tap hole (32) being communicated with gap (23); Outer tube underpart is provided with the exit orifice (22) flowing out for medium, and exit orifice is placed in changeover portion 12; Linkage section underpart has the shutoff end (33) for this exit orifice of shutoff (22).

2. adjustable-flow duckbill Valve according to claim 1, is characterized in that: linkage section and/or inner tube are provided with the regulation structure for controlling this shutoff end (33) and exit orifice (22) spacing.

3. adjustable-flow duckbill Valve according to claim 2, is characterized in that: described regulation structure is the internal thread of being located at the outside thread of linkage section outer wall and being located at outer tube wall.

4. adjustable-flow duckbill Valve according to claim 3, is characterized in that: the outer end of described outer tube is provided with and protrudes from valve body (1) prolonged section (24), and described inner tube is connected with medium transport pipe.

5. adjustable-flow duckbill Valve according to claim 3, is characterized in that: on described outer tube (2) inwall, be the flange collar (25) radially arranging along outer tube (2) with linkage section (31) contacting point.

6. adjustable-flow duckbill Valve according to claim 2, is characterized in that: described regulation structure is to be located at the locking nut being sheathed on linkage section, and one end of this locking nut is connected with linkage section, and the other end is connected with the outer end of outer tube.

7. adjustable-flow duckbill Valve according to claim 1, is characterized in that: described tap hole (32) serve as reasons interior to outer media flow direction tilt inclined hole.

8. adjustable-flow duckbill Valve according to claim 1, is characterized in that: the end of described shutoff end (33) is provided with seal washer (34), and on described exit orifice (22) and shutoff end corresponding part is provided with seal ring (25).

9. adjustable-flow duckbill Valve according to claim 1, is characterized in that: the inwall (111) of the inducer (11) of described valve body and/or outer wall (112) are roughened surface.

10. adjustable-flow duckbill Valve according to claim 9, is characterized in that: outer being arranged with of inducer (11) of described valve body strengthened hoop.