CN206352678U - Cage pressure maintaining valve for stablizing pipeline internal medium pressure - Google Patents
Cage pressure maintaining valve for stablizing pipeline internal medium pressure Download PDFInfo
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- CN206352678U CN206352678U CN201621112931.1U CN201621112931U CN206352678U CN 206352678 U CN206352678 U CN 206352678U CN 201621112931 U CN201621112931 U CN 201621112931U CN 206352678 U CN206352678 U CN 206352678U
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- valve
- cage
- valve body
- rod
- spring
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Abstract
The utility model is related to closure member to open and close gate valve or the guiding valve field along the slip of valve seat, specially a kind of cage pressure maintaining valve for being used to stablize pipeline internal medium pressure.A kind of cage pressure maintaining valve for being used to stablize pipeline internal medium pressure, including valve body (1), it is characterized in that：Also include valve cage (2), valve seat (3), valve rod (4), spring cavity (5), diaphragm (6), bearing disc (7), regulation spring (8) and valve seat (9), valve cage (2) is located at the interior intracavitary of valve barrel (12), wall relative both sides in valve cage (2) side respectively set a throttle orifice (21), and the bottom of valve cage (2) is fixed on the bottom surface of valve body (1)；Valve seat (3) is flange shape, and the bottom of valve rod (4) is in valve cage (2), and the top of valve rod (4) is passed out of valve seat (3) through hole.The utility model is simple in construction, is active in one's movements, and sealing is strong, and debugging is convenient, and regulating ratio is big.
Description
Technical field
The utility model is related to closure member to open and close gate valve or the guiding valve field along the slip of valve seat,
Specially a kind of cage pressure maintaining valve for being used to stablize pipeline internal medium pressure.
Background technology
Current self-contained pressure regulator uses cut-off type substantially, due to the regulating valve valve rod meeting when in use of this model
By the unidirectional impact of medium, valve rod is yielding to cause regulating valve stuck；To avoid the stuck overstriking valve rod of having to of regulating valve same
When reduce valve rod stroke, impact of the medium to valve rod is kept out with this, this allow for regulating valve negotiability reduction, it can
Adjust ratio only 7:1~10:1；Simultaneously under the impact of medium, the degree of regulation of regulating valve and sensitivity are also undesirable, it is impossible to very
The stabilization of pipeline pressure is kept well, and when flow increases, the drop range of pipeline pressure is by the professional standard more than 20%.
Utility model content
In order to overcome the defect of prior art, there is provided one kind is simple in construction, easy to use, negotiability is strong, service life
The high control valve of long, control accuracy, the utility model discloses a kind of cage voltage stabilizing for being used to stablize pipeline internal medium pressure
Valve.
The utility model reaches goal of the invention by following technical solution：
It is a kind of to be used to stablizing the cage pressure maintaining valve of pipeline internal medium pressure, including valve body, the two ends of valve body be respectively equipped with and
The water inlet and delivery port of body cavity insertion；The valve body connector of the top fixation flange-like of valve body, the endoporus of valve body connector and
The inner chamber insertion of valve body；Valve barrel is interconnected by respective one end by cylinder side plate and cylinder bottom plate and constituted, and side wall is provided with cylinder side plate
For the valve head hole on inclined-plane, valve barrel is in valve body, and the other end of cylinder side plate is fixed on the valve head on the water inlet of valve body, cylinder side plate
Endoporus of the hole just to valve body connector, the other end of cylinder bottom plate is fixed on the bottom surface of valve body, apopore of the cylinder bottom plate just to valve body；
The bottom surface of valve body is rotary with plug of valve body, is sealed between plug of valve body and valve body；It is characterized in that：Also include valve cage, valve seat, valve rod,
Spring cavity, diaphragm, bearing disc and regulation spring,
Valve cage is the tubular of bottom end closure open top, and valve cage is located at the interior intracavitary of valve barrel, the relative both sides of valve cage side wall
A throttle orifice is respectively set, the bottom of valve cage is fixed on the bottom surface of valve body, the top of valve cage is just to the valve head hole on cylinder side plate；Valve
Seat is flange shape, and the neck flange of valve seat is embedded in the valve head hole on cylinder side plate, and valve is lined between the valve head hole of valve seat and cylinder side plate
Seat sealing ring, the bottom of valve rod is in valve cage, and the top of valve rod is passed out of valve seat through hole, under valve rod is divided into from bottom to top
The external diameter of section, stage casing and epimere, valve rod hypomere and epimere is both greater than the external diameter of valve seat through-hole, and the external diameter in valve rod stage casing is less than valve seat
The external diameter of through hole, is all connected, valve rod between valve rod hypomere and stage casing and between the epimere of valve rod and stage casing by intermediate incline
Top fix valve head, valve head is placed on the open-mouth of valve cage, and valve rod spring is set on valve rod, and the two ends of valve rod spring are supported respectively
Firmly valve cage and valve rod；
Spring cavity is flange shape, and the flange chassis of the flange chassis of spring cavity just to valve body connector, diaphragm lining connects in valve body
Between the flange chassis of head and the flange chassis of spring cavity, between the flange chassis of diaphragm and valve body connector and diaphragm and spring
All it is lined with sealing ring between the flange chassis of chamber, the both sides of diaphragm are respectively valve body connector side and spring cavity side, bolt-pad-
Nut assembly fastens the flange chassis of the flange chassis of spring cavity, diaphragm and valve body connector, and the top of valve head props up diaphragm
Valve body connector side；
Bearing disc is fixed in the spring cavity side of diaphragm, and regulation spring is in spring cavity, and the bottom of regulation spring, which is fixed on, holds
On platen, the top of regulation spring props up the madial wall on spring cavity top by spring pad.
The described cage pressure maintaining valve for being used to stablize pipeline internal medium pressure, it is characterized in that：Also include regulating bolt and anti-
Nut is leaked, the end face of screw rod through the spring cavity neck flange of regulating bolt props up spring pad, leakproof after entering the endoporus of neck flange
Nut is spun on the screw rod of regulating bolt and is located at the outside of spring cavity and props up the end face of spring cavity neck flange.
The described cage pressure maintaining valve for being used to stablize pipeline internal medium pressure, it is characterized in that：Valve rod hypomere and epimere it is outer
Footpath is all the 105%~120% of valve seat through-hole aperture, and the external diameter in valve rod stage casing is the 75%~95% of valve seat through-hole external diameter.
The utility model by the water inlet and delivery port of valve body by the utility model in use, be connected on trandfer fluid
On pipeline, when not having fluid conveying, the transition that valve head is covered on the valve head hole on cylinder side plate and between valve rod epimere and stage casing is oblique
Face is filled in the through hole of valve seat, while upward elastic force and regulation spring that valve rod spring is applied by valve rod and valve head to diaphragm
The downward elastic force that diaphragm applies mutually is balanced each other by bearing disc, the utility model is closed；When having fluid from valve
After the arrow in left side shown in the water inlet of body along figure flows into valve barrel and flows into valve cage through throttle orifice, fluid is applied with upwards to valve rod
Thrust, valve rod moves upwardly so that the stage casing of valve rod is moved in the through hole of valve seat, and fluid passes through between valve rod and valve seat through-hole
Gap flow into valve body and through valve body delivery port outflow, the utility model be in opening；When the flow of fluid is excessive,
Fluid continues to press on valve rod and moves upwardly so that the intermediate incline between valve rod hypomere and stage casing is gradually inserted in the through hole of valve seat,
Gap between valve rod and valve seat through-hole is gradually reduced to reduce the flow of fluid；Such as with regulating bolt, rotation can be passed through
Enter or screw out the tightness that regulating bolt controls to adjust spring, change the bullet that regulation spring is applied by bearing disc to diaphragm
Power, so that the flow of regulation valve body trandfer fluid.
The utility model is high sensitivity, high precision cage structure Self-pressure stabilizing valve, and regulating ratio is reachable:, solve and cut
Only type direct-operated regulator degree of regulation is poor, and ability of having quick access to information is low, the problem of easily stuck, can be widely applied to petroleum and petrochemical industry, sea
The stabilization of the industry pipeline pressure such as platform chemical industry, pharmacy, chemical fertilizer.
The beneficial effects of the utility model are：It is simple in construction, it is active in one's movements, sealing is strong, debugging is convenient, regulating ratio is big.
Brief description of the drawings
Fig. 1 is sectional view of the present utility model.
Embodiment
The utility model is further illustrated below by way of specific embodiment.
Embodiment 1
A kind of cage pressure maintaining valve for being used to stablize pipeline internal medium pressure, including valve body 1, valve cage 2, valve seat 3, valve rod 4, bullet
Spring chamber 5, regulating bolt 51, leakproof nut 52, diaphragm 6, bearing disc 7 and regulation spring 8, as shown in figure 1, concrete structure is：
The two ends of valve body 1 are respectively equipped with water inlet and delivery port with the inner chamber insertion of valve body 1；The top fixation of valve body 1
The valve body connector 11 of flange-like, the inner chamber insertion of the endoporus and valve body 1 of valve body connector 11；Valve barrel 12 is by cylinder side plate 121 and cylinder bottom plate
122 by respective one end interconnect constitute, be provided with cylinder side plate 121 side wall be inclined-plane valve head hole, valve barrel 12 be located at valve body 1
Interior, the other end of cylinder side plate 121 is fixed on valve head hole on the water inlet of valve body 1, cylinder side plate 121 just in valve body connector 11
Hole, the other end of cylinder bottom plate 122 is fixed on the bottom surface of valve body 1, apopore of the cylinder bottom plate 122 just to valve body 1；The bottom of valve body 1
Face is rotary with plug of valve body 13, is sealed between plug of valve body 13 and valve body 1；
Valve cage 2 is the tubular of bottom end closure open top, and valve cage 2 is located at the interior intracavitary of valve barrel 12, and the side wall of valve cage 2 is relative
Both sides respectively set a throttle orifice 21, and the bottom of valve cage 2 is fixed on the bottom surface of valve body 1, and the top of valve cage 2 is just to cylinder side plate 121
On valve head hole；Valve seat 3 is flange shape, and the neck flange of valve seat 3 is embedded in the valve head hole on cylinder side plate 121, valve seat 3 and cylinder side plate
Valve seat insert 31 is lined between 121 valve head hole, the bottom of valve rod 4 is in valve cage 2, top the leading to from valve seat 3 of valve rod 4
Passed in hole, valve rod 4 is divided into hypomere, stage casing and epimere from bottom to top, the external diameter of the hypomere of valve rod 4 and epimere is both greater than valve seat 3 and led to
The external diameter in hole, the external diameter in the stage casing of valve rod 4 is less than the external diameter of the through hole of valve seat 3, between the hypomere of valve rod 4 and stage casing and valve rod 4 it is upper
All connected between section and stage casing by intermediate incline, valve head 41 is fixed on the top of valve rod 4, and valve head 41 is placed on the open-mouth of valve cage 2,
Valve rod spring 42 is set on valve rod 4, and the two ends of valve rod spring 42 are respectively held against valve cage 2 and valve rod 4；
Spring cavity 5 is flange shape, and the flange chassis of the flange chassis of spring cavity 5 just to valve body connector 11, diaphragm 6 is served as a contrast in valve
Between the flange chassis of body joint 11 and the flange chassis of spring cavity 5, between the flange chassis of diaphragm 6 and valve body connector 11 and
Sealing ring 61 is all lined between diaphragm 6 and the flange chassis of spring cavity 5, the both sides of diaphragm 6 are respectively valve body connector side and spring
Chamber side, bolt-pad-nut assembly 62 fastens the flange chassis of the flange chassis of spring cavity 5, diaphragm 6 and valve body connector 11,
The top of valve head 41 props up the valve body connector side of diaphragm 6；
Bearing disc 7 is fixed in the spring cavity side of diaphragm 6, and regulation spring 8 is in spring cavity 5, and the bottom of regulation spring 8 is fixed
On bearing disc 7, the top of regulation spring 8 props up the madial wall on the top of spring cavity 5 by spring pad 81；
The end face of the screw rod of regulating bolt 51 through the neck flange of spring cavity 5 props up spring pad after entering the endoporus of neck flange
81, leakproof nut 52 is spun on the screw rod of regulating bolt 51 and is located at the outside of spring cavity 5 and props up the end of the neck flange of spring cavity 5
Face.
The external diameter of the hypomere of valve rod 4 and epimere is all the 105%~120% of the through-hole aperture of valve seat 3, and the present embodiment all takes 110%；
The external diameter in the stage casing of valve rod 4 is the 75%~95% of the through hole external diameter of valve seat 3, and the present embodiment takes 80%.
The present embodiment is in use, the present embodiment to be connected on to the pipe of trandfer fluid by the water inlet and delivery port of valve body 1
On road, when not having fluid conveying, valve head 41 is covered on the valve head hole on cylinder side plate 121 and the mistake between the epimere of valve rod 4 and stage casing
Inclined-plane plug is crossed in the through hole of valve seat 3, while the upward elastic force that valve rod spring 42 is applied by valve rod 4 and valve head 41 to diaphragm
The downward elastic force that diaphragm 6 applies mutually is balanced each other by bearing disc 7 with regulation spring 8, the present embodiment is closed；When
After the arrow for having left side shown in water inlet along Fig. 1 of the fluid from valve body 1 flows into valve barrel 12 and flows into valve cage 2 through throttle orifice 21, stream
Body is applied with upward thrust to valve rod 4, and valve rod 4 moves upwardly so that the stage casing of valve rod 4 is moved in the through hole of valve seat 3, fluid
Valve body 1 and delivery port stream of the arrow through valve body 1 along on the right side of shown in Fig. 1 are flowed into by the gap between valve rod 4 and the through hole of valve seat 3
Go out, the present embodiment is in opening；When the flow of fluid is excessive, fluid continues to press on valve rod 4 and moves upwardly so that valve rod 4
Intermediate incline between hypomere and stage casing is gradually inserted in the through hole of valve seat 3, and the gap between valve rod 4 and the through hole of valve seat 3 is gradually
Reduce to reduce the flow of fluid；Such as with regulating bolt 51, it can be controlled to adjust by precession or back-out regulating bolt 51
The tightness of spring 8, changes the elastic force that regulation spring 8 is applied by bearing disc 7 to diaphragm 6, so that the transport Stream of regulation valve body 1
The flow of body.
Claims (3)
1. a kind of cage pressure maintaining valve for being used to stablize pipeline internal medium pressure, including valve body (1), the two ends of valve body (1) are set respectively
There are the water inlet and delivery port with valve body (1) inner chamber insertion；The valve body connector (11) of the top fixation flange-like of valve body (1), valve
The inner chamber insertion of the endoporus and valve body (1) of body joint (11)；Valve barrel (12) is by cylinder side plate (121) and cylinder bottom plate (122) by respective
One end interconnect and constitute, the valve head hole that side wall is inclined-plane is provided with cylinder side plate (121), valve barrel (12) in valve body (1),
The other end of cylinder side plate (121) is fixed on valve head hole on the water inlet of valve body (1), cylinder side plate (121) just to valve body connector
(11) endoporus, the other end of cylinder bottom plate (122) is fixed on the bottom surface of valve body (1), and cylinder bottom plate (122) is just to valve body (1)
Apopore；The bottom surface of valve body (1) is rotary with plug of valve body (13), is sealed between plug of valve body (13) and valve body (1)；It is characterized in that：
Also include valve cage (2), valve seat (3), valve rod (4), spring cavity (5), diaphragm (6), bearing disc (7) and regulation spring (8),
Valve cage (2) is the tubular of bottom end closure open top, and valve cage (2) is located at the interior intracavitary of valve barrel (12), valve cage (2) side wall phase
To both sides respectively set a throttle orifice (21), the bottom of valve cage (2) is fixed on the bottom surface of valve body (1), and the top of valve cage (2) is just
To the valve head hole on cylinder side plate (121)；Valve seat (3) is flange shape, and the neck flange of valve seat (3) is embedded in the valve on cylinder side plate (121)
In head bore, valve seat insert (31) is lined between the valve head hole of valve seat (3) and cylinder side plate (121), the bottom of valve rod (4) is located at valve
In cage (2), the top of valve rod (4) is passed out of valve seat (3) through hole, valve rod (4) be divided into from bottom to top hypomere, stage casing and on
The external diameter of section, valve rod (4) hypomere and epimere is both greater than the external diameter of valve seat (3) through hole, and the external diameter in valve rod (4) stage casing is less than valve seat
(3) external diameter of through hole, valve rod (4) all passes through intermediate incline between hypomere and stage casing and between the epimere of valve rod (4) and stage casing
Valve head (41) is fixed on connection, the top of valve rod (4), and valve head (41) is placed on the open-mouth of valve cage (2), and valve rod spring (42) is set in
On valve rod (4), the two ends of valve rod spring (42) are respectively held against valve cage (2) and valve rod (4)；
Spring cavity (5) is flange shape, the flange chassis of the flange chassis of spring cavity (5) just to valve body connector (11), diaphragm (6) lining
Between the flange chassis of valve body connector (11) and the flange chassis of spring cavity (5), the flange of diaphragm (6) and valve body connector (11)
Sealing ring (61), the both sides point of diaphragm (6) are all lined between chassis and between the flange chassis of diaphragm (6) and spring cavity (5)
Not Wei valve body connector side and spring cavity side, bolt-pad-nut assembly (62) is by the flange chassis of spring cavity (5), diaphragm (6)
Fastened with the flange chassis of valve body connector (11), the top of valve head (41) props up the valve body connector side of diaphragm (6)；
Bearing disc (7) is fixed in the spring cavity side of diaphragm (6), and regulation spring (8) is in spring cavity (5), the bottom of regulation spring (8)
End is fixed on bearing disc (7), and the top of regulation spring (8) props up the madial wall on spring cavity (5) top by spring pad (81).
2. the cage pressure maintaining valve as claimed in claim 1 for being used to stablize pipeline internal medium pressure, it is characterized in that：Also include regulation
Bolt (51) and leakproof nut (52), the end face of screw rod through spring cavity (5) neck flange of regulating bolt (51) enter neck flange
Endoporus after prop up spring pad (81), leakproof nut (52) is spun on the screw rod of regulating bolt (51) and located at spring cavity (5)
End face that is outside and propping up spring cavity (5) neck flange.
3. the cage pressure maintaining valve as claimed in claim 1 or 2 for being used to stablize pipeline internal medium pressure, it is characterized in that：Valve rod (4)
The external diameter of hypomere and epimere is all the 105%~120% of valve seat (3) through-hole aperture, and the external diameter in valve rod (4) stage casing is that valve seat (3) leads to
The 75%~95% of hole external diameter.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621112931.1U CN206352678U (en) | 2016-10-11 | 2016-10-11 | Cage pressure maintaining valve for stablizing pipeline internal medium pressure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621112931.1U CN206352678U (en) | 2016-10-11 | 2016-10-11 | Cage pressure maintaining valve for stablizing pipeline internal medium pressure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206352678U true CN206352678U (en) | 2017-07-25 |
Family
ID=59346262
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201621112931.1U Active CN206352678U (en) | 2016-10-11 | 2016-10-11 | Cage pressure maintaining valve for stablizing pipeline internal medium pressure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206352678U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2020015581A1 (en) * | 2018-07-19 | 2020-01-23 | 范瑶飞 | Pressure maintaining valve |
| CN115030884A (en) * | 2022-06-07 | 2022-09-09 | 湖南腾智机电有限责任公司 | Miniature diaphragm formula electron vacuum pump |
-
2016
- 2016-10-11 CN CN201621112931.1U patent/CN206352678U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2020015581A1 (en) * | 2018-07-19 | 2020-01-23 | 范瑶飞 | Pressure maintaining valve |
| CN115030884A (en) * | 2022-06-07 | 2022-09-09 | 湖南腾智机电有限责任公司 | Miniature diaphragm formula electron vacuum pump |
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