CN208619778U - Adjustable three-port check damper - Google Patents
Adjustable three-port check damper Download PDFInfo
- Publication number
- CN208619778U CN208619778U CN201820836434.9U CN201820836434U CN208619778U CN 208619778 U CN208619778 U CN 208619778U CN 201820836434 U CN201820836434 U CN 201820836434U CN 208619778 U CN208619778 U CN 208619778U
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- valve
- adjusting rod
- cylinder
- valve seat
- adjustment spring
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Abstract
A kind of adjustable check valve, including valve seat, flap, valve clack cover, adjustment spring, adjusting rod, sliding shaft sleeve, baffle, valve body, adjustment spring；T-type is equipped with an import vertically, vertical place perpendicular to T-type is the two or three outlet, two or three outlet is communication port and axis point-blank and is lower than the axis of import, the axis of import is vertical with the two or three outlet axes antarafacial, the top of communication port is looping pit valve seat, valve seat top and inlet communication, the valve clack cover for being greater than annular bore dia is equipped with below looping pit valve seat, on the fixed adjusting rod of valve clack cover series connection, it is the cylinder of package adjusting rod above adjusting rod, valve seat, valve clack cover, adjusting rod and cylinder are on the horizontal line of T-type, but the vertical section of valve body is T-type sidewards, cylinder is integrated with valve body, ring on one is fixed on adjusting rod；Under the action of adjustment spring on cylinder, valve clack cover can be blocked looping pit valve seat neck bore by elastic force upwards.
Description
Technical field:
The utility model relates to a kind of three-port check dampers, are suitable for petroleum, chemical industry, chemical fertilizer, electric power, pesticide, chemical fibre, food
The check-valves that product, medicine, metallurgy, plumbing, fire-fighting, HVAC system use, is mountable to pump outlet, to prevent medium from falling
The damage of stream and water hammer to pump.
Background technique:
With the high speed development of the national economy in China, in China's oil, chemical industry, chemical fertilizer, electric power, pesticide, chemical fibre, food
Product, medicine, metallurgy, plumbing, fire-fighting, HVAC system use the check-valves for preventing medium from flowing backwards of plurality of specifications.Prevent medium
The damage of refluence and water hammer to pump.Conventional check valves are unadjustable, inconvenient to use, and maintenance cost is high.Three-port check damper is also not
Seeing has, and needs the commodity of three-port check damper on the market, and two of them outlet is unidirectional outlet, cannot have liquid to flow into,
It cannot be applied when reversed return water when especially the departments such as environmental protection intake.
Utility model content:
The utility model aim is to propose a kind of adjustable three-port check damper, prevents the liquid such as water with plurality of specifications
The check-valves that medium is flow backwards.Check-valves is adjustable, easy to use, and the effect for the easy to operate and sealed reliable having.Use increasing
Strong PTFE is as valve clack sealing surface, and closing is softer, and water hammer-resistant effect is more preferable, sealed reliable., use external adjustment spring
Structure, the convenient actuating pressure for adjusting check-valves, can be used in a variety of occasions.
The technical solution of the utility model is a kind of adjustable check valve, including valve seat, flap, valve clack cover, adjusting bullet
Spring, adjusting rod, sliding shaft sleeve, baffle, valve body, adjustment spring；T-type is equipped with an import vertically, perpendicular to the vertical of T-type
Place is the two or three outlet, and the two or three outlet is communication port and axis point-blank and is lower than the axis of import, import
Axis is vertical with the two or three outlet axes antarafacial, and the top of communication port is looping pit valve seat, valve seat top and inlet communication, annular
The valve clack cover for being greater than annular bore dia is equipped with below the valve seat of hole, valve clack cover is connected on fixed adjusting rod, is packet above adjusting rod
The cylinder of adjusting rod is wrapped up in, valve seat, valve clack cover, adjusting rod and cylinder are on the horizontal line of T-type, but the vertical section of valve body is sidewards
T-type, cylinder be it is integrated with valve body, ring on one is fixed on adjusting rod, the periphery of cylinder is cased with adjustment spring, adjustment spring position
Between cylinder and upper ring, the cylinder above adjusting rod is the gland for wrapping up adjusting rod, packing seal, O type sealing ring；In cylinder
Under the action of upper adjustment spring, valve clack cover can be blocked looping pit valve seat neck bore by elastic force upwards；When inlet channel
Pressure is greater than the elastic force of adjustment spring, and valve clack cover can not be blocked looping pit valve seat neck bore by elastic force upwards, liquid from
Hole between valve clack cover and flap flow to the two or three outlet mouth and flows out from the two or three outlet.
Further, upper ring spiral on adjusting rod connects.It is adjusted so as to the elasticity to adjustment spring.
Further, use enhancing PTFE ring as valve clack sealing surface sealing ring.
The utility model has the advantages that the utility model adjustable check valve, and there is the three-port structure of double outlets, it is convenient for uniform pressure regulation stream
Water, in particular for ordinary ball valve valve body in the deficiency for controlling unidirectional liquid flowing.This product be suitable for environmentally friendly water process and
The water process of tap water is mountable between two conditioning tanks, to prevent medium from flowing backwards.Use enhancing PTFE as water conservancy diversion
Body guarantees the smallest pressure loss, using adjustment spring, guarantees the accurate of pressure regulation.Sealing reliability is good, long service life.It is whole
Body is strong using corrosion-resistance treatment and low temperature resistant processing, corrosion resistance.Use enhancing PTFE as valve clack sealing surface, closes more
It is soft, sealed reliable.Using external adjustment spring structure, the convenient actuating pressure for adjusting check-valves be can be used more
Kind occasion.Using bottom cover form, can be connected with a variety of connection types.It can not have to, it is also possible to it is threadedly coupled bottom cover, it can also be into
Row is welded to connect, mode multiplicity.
Detailed description of the invention:
FIG. 1 is a schematic structural view of the utility model.
Fig. 2 is the sectional view of Fig. 1.
Specific embodiment:
It is as shown in the figure: 1, bracket, 2, adjusting nut, 3, adjust lid, 4, adjustment spring, 5, the two or three outlet on valve body, 6 pressures
Lid, 7, packing seal, 8, O-ring seal, 9, adjusting rod, 10, valve seat, 11, valve clack cover, 12, O-ring seal, 13, bottom cover,
14, gasket seal.When fluid is flowed along flow direction of medium, fluid flowing when fluid is along media flow opposite direction flowing, due to
Under spring and Fluid pressure double acting, flap 10 prevents reverse flow of fluids, by adjusting adjusting rod 9, so that it may convenient setting
The fluid rated pressure to be flowed.The longitudinal section of valve body is T-type (being a horizontal T-type), and T-type is equipped with import vertically, vertically
It is the two or three outlet in the vertical place of T-type, the two or three outlet is communication port and axis point-blank and lower than import
Axis, the axis of import is vertical with the two or three outlet axes antarafacial, and the top of communication port is looping pit valve seat, above valve seat with into
Mouth is connected to, and the valve clack cover for being greater than annular bore dia is equipped with below looping pit valve seat, and valve clack cover is connected on fixed adjusting rod, is adjusted
It is the cylinder of package adjusting rod above bar, valve seat, valve clack cover, adjusting rod and cylinder are on the horizontal line of T-type, but the perpendicular of valve body is cut
Face is T-type sidewards, and cylinder is integrated with valve body, and ring on one is fixed on adjusting rod, and the periphery of cylinder is cased with adjustment spring, is adjusted
Spring is saved between cylinder and upper ring, the cylinder above adjusting rod is the gland for wrapping up adjusting rod, packing seal, O-shaped sealing
Circle；Under the action of adjustment spring on cylinder, valve clack cover can be blocked looping pit valve seat neck bore by elastic force upwards；Work as import
The pressure of runner is greater than the elastic force of adjustment spring, and valve clack cover can not be blocked looping pit valve seat neck bore by elastic force upwards,
Hole of the liquid between valve clack cover and flap flow to the two or three outlet mouth and flows out from the two or three outlet.Use enhancing PTFE
Ring is as valve clack sealing surface.
Upper ring spiral on adjusting rod connects.It is adjusted so as to the elasticity to adjustment spring.
Use enhancing PTFE as valve clack sealing surface.
The above description is only the embodiments of the present invention, is not intended to limit the utility model, all practical at this
Made any modifications, equivalent replacements, and improvements etc. within novel spirit and principle, the guarantor to be included in the utility model
Within the scope of shield.
Claims (3)
1. a kind of adjustable check valve, it is characterized in that include valve seat, flap, valve clack cover, adjustment spring, adjusting rod, sliding shaft sleeve,
Baffle, valve body, adjustment spring；T-type is equipped with an import vertically, exports perpendicular to the vertical place of T-type for the two or three, second
Three outlets are communication port and axis point-blank and are lower than the axis of import, the axis of import and the two or three outlet axes
Antarafacial is vertical, and the top of communication port is looping pit valve seat, valve seat top and inlet communication, is equipped with below looping pit valve seat and is greater than ring
The valve clack cover of shape bore dia, valve clack cover are connected on fixed adjusting rod, are the cylinder of package adjusting rod above adjusting rod, valve seat,
Valve clack cover, adjusting rod and cylinder are on the horizontal line of T-type, and the vertical section of valve body is T-type sidewards, and cylinder is integrated with valve body
, ring on one is fixed on adjusting rod, the periphery of cylinder is cased with adjustment spring, and adjustment spring is adjusted between cylinder and upper ring
Cylinder above bar is the gland for wrapping up adjusting rod, packing seal, O-ring seal；Under the action of adjustment spring on cylinder, flap
Lid can be blocked looping pit valve seat neck bore by elastic force upwards；When inlet channel pressure be greater than adjustment spring elastic force,
Valve clack cover can not be blocked looping pit valve seat neck bore by elastic force upwards, and hole of the liquid between valve clack cover and flap is flow to
Two or three outlet mouth is simultaneously flowed out from the two or three outlet.
2. adjustable check valve according to claim 1, it is characterized in that upper ring spiral on adjusting rod connects, so as to
The elasticity of adjustment spring is adjusted.
3. adjustable check valve according to claim 1, it is characterized in that using enhancing PTFE ring close as valve clack sealing surface
Seal ring.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820836434.9U CN208619778U (en) | 2018-05-31 | 2018-05-31 | Adjustable three-port check damper |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820836434.9U CN208619778U (en) | 2018-05-31 | 2018-05-31 | Adjustable three-port check damper |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208619778U true CN208619778U (en) | 2019-03-19 |
Family
ID=65700900
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201820836434.9U Active CN208619778U (en) | 2018-05-31 | 2018-05-31 | Adjustable three-port check damper |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208619778U (en) |
-
2018
- 2018-05-31 CN CN201820836434.9U patent/CN208619778U/en active Active
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| GR01 | Patent grant |