CN212509687U - Slow-closing type pressure regulating and stabilizing valve - Google Patents
Slow-closing type pressure regulating and stabilizing valve Download PDFInfo
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- CN212509687U CN212509687U CN202021161645.0U CN202021161645U CN212509687U CN 212509687 U CN212509687 U CN 212509687U CN 202021161645 U CN202021161645 U CN 202021161645U CN 212509687 U CN212509687 U CN 212509687U
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Abstract
The utility model discloses a slow-closing pressure regulating and stabilizing valve, which is characterized by comprising a valve body, a valve cover, a ball valve, a pressure gauge, a needle-shaped regulating valve and a pressure reducing pilot valve, wherein a hydraulic cavity which can realize slow closing when the valve is closed is arranged between a diaphragm and the valve body; the utility model discloses surge damping valve simple structure, reasonable in design sets up adjustable pipe connection's hydraulic pressure chamber and stock solution chamber for surge damping valve closing speed tends to stably at the uniform velocity, has avoided the impact, has effectively reduced the wearing and tearing of valve clack and valve body, has avoided causing the damage to the stability of valve, makes the operation that the valve can be more reliable, prolongs surge damping valve's life.
Description
Technical Field
The utility model relates to the technical field of valves, more specifically say that it relates to a slowly-closed pressure regulating surge damping valve.
Background
The diaphragm pressure regulating and stabilizing valve is a special valve which is arranged on a pipeline of a water supply and drainage system of a high-rise building and reduces the inlet pressure to a certain required outlet pressure, the outlet pressure is kept stable at a set value by depending on the capacity of the special valve, namely, the outlet pressure is not changed due to the change of the inlet pressure and the flow, a self-cleaning filter screen is arranged at the inlet of a valve control system, and suspended particles with larger specific gravity and larger diameter cannot enter the control system by utilizing the fluid characteristic, so that the system is ensured to circulate smoothly without blockage, the valve can run safely and reliably, the valve control sensitivity is high, the safety and the reliability are realized, the debugging is simple and convenient, and the service life is long; the valve realizes pressure sealing based on the deformation elastic force of the spring, but the valve clack can be quickly closed under the influence of the spring when the medium pressure is suddenly reduced or disappears due to the overlarge elastic force of the spring, the stability of the valve can be damaged due to the impact caused by the quick closing of the valve clack, and particularly the abrasion on the contact surface of the valve clack and a valve body is serious.
Disclosure of Invention
The utility model provides a not enough to prior art exists, the utility model provides a slowly close formula pressure regulating surge damping valve, its simple structure utilizes the hydraulic pressure chamber that sets up, through the buffering of built-in liquid, realizes that the slow of surge damping valve when the valve closes is closed and closes.
In order to achieve the above purpose, the utility model provides a following technical scheme: a slowly-closed pressure-regulating and pressure-stabilizing valve comprises a valve body, a valve cover, a ball valve, a pressure gauge, a needle-type regulating valve and a pressure-reducing pilot valve, and is characterized in that the valve cover is provided with guide pipes which are respectively connected with the two ends of a water inlet end and a water outlet end of the valve body, the guide pipes are respectively provided with the ball valve and the pressure gauge for detecting the pressure of a medium flowing through the ball valve in real time, the guide pipe at the water inlet end of the valve body is also provided with the needle-type regulating valve, and the guide pipe at the outlet;
the valve body further comprises a valve rod and a valve clack fixedly arranged with the valve rod, a piston sheet and a diaphragm clamped by the piston sheet are further sleeved on the valve rod, a spring with two ends respectively abutting against the inner wall of the valve cover and the end face of the piston sheet is further sleeved on the valve rod, and the piston sheet, the valve clack and the valve rod can axially move along the valve rod under the combined action of medium pressure change in the valve body and the elastic force of spring reset;
the valve body is also internally provided with a hydraulic cavity for buffering the pressure applied to the diaphragm, the hydraulic cavity is positioned between the diaphragm and the valve body, the hydraulic cavity is isolated from the medium flow cavity in the valve body, and the hydraulic cavity is connected with a liquid storage cavity through a conduit.
As a further arrangement of the scheme, the number of the guide pipes arranged between the hydraulic cavity and the liquid storage cavity is two, a single-phase liquid valve is arranged, the guide pipes are respectively arranged for flowing out of the hydraulic cavity and flowing into the hydraulic cavity, the flow velocity of the guide pipes flowing into the hydraulic cavity is not limited, and the guide pipes flowing out of the hydraulic cavity are provided with adjusting valves used for controlling the flow velocity to realize slow closing.
As a further arrangement of the scheme, a sealing ring is arranged on the surface of the valve clack, which is abutted against the valve body, and magnets are respectively clamped between the sealing ring and the valve clack and between the sealing ring and the valve body, and are respectively arranged on the valve clack and the valve body, and the magnetic poles of the magnets are attracted.
As a further arrangement of the above scheme, the density of the medium in the liquid storage cavity is greater than that of the medium flowing through the valve body.
As a further arrangement of the scheme, one end of the valve rod, which is exposed out of the valve body, is also provided with a pull ring.
Set up through the above scheme, the utility model discloses the outside manometer of surge damping valve accessible removes audio-visual internal pressure and changes, set up through needle type governing valve etc. and adjust internal pressure, through the hydraulic pressure chamber that sets up between diaphragm and valve body, drive the valve rod on piston piece and diaphragm at spring action power effect, during the axial activity of valve clack, utilize liquid tension to carry out a buffering to the motion of valve clack, the liquid of hydraulic pressure intracavity fills fast into through the pipe of an unrestricted velocity of flow between stock solution chamber and the hydrovalve when opening the valve and does not influence the valve, and when closing the valve, the pipe that flows has speed limit and regulating power, make surge damping valve closing speed tend to stabilize at the uniform velocity, impact has been avoided, in order to reduce impact wear, the life of extension surge damping valve.
Has the advantages that: compared with the prior art, the utility model discloses the surge damping valve has increased the setting in hydraulic pressure chamber, has effectively reduced the wearing and tearing of valve clack and valve body, has avoided causing the damage to the stability of valve, makes the operation that the valve can be more reliable, long service life.
Drawings
FIG. 1 is a schematic structural diagram of the present invention when the valve is closed;
fig. 2 is a schematic view of the valve opening structure of the present invention.
Reference numerals: 1. a valve body; 2. a valve cover; 3. a valve flap; 4. a valve stem; 41. a pull ring; 5. a hydraulic chamber; 51. a liquid storage cavity; 52. a piston plate; 7. a spring; 8. a membrane; 1001. a needle-type regulating valve; 1002. a pressure gauge; 1003. a pressure reducing pilot valve; 1004. a ball valve.
Detailed Description
The present invention will be described in further detail with reference to the accompanying drawings.
As shown in fig. 1-2, the embodiment discloses a slow-closing pressure-regulating and pressure-stabilizing valve, which includes a valve body 1, a valve cover 2, a ball valve 1004, a pressure gauge 1002, a needle-type regulating valve 1001, and a pressure-reducing pilot valve 1003, and is characterized in that the valve cover 2 is provided with conduits respectively connected to two ends of a water inlet end and a water outlet end of the valve body 1, the conduits are respectively provided with the ball valve 1004 and the pressure gauge 1002 for detecting the pressure of a medium flowing through the ball valve 1004 in real time, the conduit of the water inlet end of the valve body 1 is further provided with the needle-type regulating valve 1001, and the conduit of the outlet end of the;
the valve body 1 further comprises a valve rod 4 and a valve clack 3 fixedly arranged with the valve rod 4, a piston sheet 52 and a diaphragm 8 clamped by the piston sheet 52 are further sleeved on the valve rod 4, a spring 7 with two ends respectively abutting against the inner wall of the valve cover 2 and the end face of the piston sheet 52 is further sleeved on the valve rod 4, and the piston sheet 52, the valve clack 3 and the valve rod 4 can move axially along the valve rod 4 under the combined action of medium pressure change in the valve body 1 and the elastic force of resetting of the spring 7;
still be equipped with hydraulic pressure chamber 5 that is used for buffering diaphragm 8 to receive in the valve body 1, hydraulic pressure chamber 5 is located between diaphragm 8 and the valve body 1, just hydraulic pressure chamber 5 keeps apart with medium flow chamber in the valve body 1 and sets up, hydraulic pressure chamber 5 has liquid storage chamber 51 through pipe connection.
As a further arrangement of the above scheme, two conduits are arranged between the hydraulic chamber 5 and the liquid storage chamber 51, and a single-phase liquid valve is provided, the conduits are respectively arranged for flowing out and flowing into the hydraulic chamber 5, the conduit for flowing into the hydraulic chamber 5 does not limit the flow rate, and the conduit for flowing out of the hydraulic chamber 5 is provided with an adjusting valve for controlling the flow rate to realize slow closing.
As a further arrangement of the above scheme, a sealing ring is arranged on the surface of the valve clack 3 abutting against the valve body 1, and magnets are respectively clamped between the sealing ring and the valve clack 3 and between the sealing ring and the valve body 1, and are respectively arranged on the valve clack 3 and the valve body 1, and magnetic poles of the magnets are attracted.
As a further arrangement of the above arrangement, the density of the medium in the reservoir chamber 51 is greater than the density of the medium flowing through the valve body 1.
As a further arrangement of the above solution, a pull ring 41 is further provided at one end of the valve rod 4 exposed out of the valve body 1.
Set up through the above scheme, the utility model discloses the outside manometer of surge damping valve accessible removes audio-visual internal pressure and changes, set up through needle type governing valve etc. and adjust internal pressure, through the hydraulic pressure chamber that sets up between diaphragm and valve body, drive the valve rod on piston piece and diaphragm at spring action power effect, during the axial activity of valve clack, utilize liquid tension to carry out a buffering to the motion of valve clack, the liquid of hydraulic pressure intracavity fills fast into through the pipe of an unrestricted velocity of flow between stock solution chamber and the hydrovalve when opening the valve and does not influence the valve, and when closing the valve, the pipe that flows has speed limit and regulating power, make surge damping valve closing speed tend to stabilize at the uniform velocity, impact has been avoided, in order to reduce impact wear, the life of extension surge damping valve.
Above-mentioned embodiment is for current scheme, the utility model discloses surge damping valve has increased the setting in hydraulic pressure chamber, has effectively reduced the wearing and tearing of valve clack and valve body, has avoided causing the damage to the stability of valve, makes the operation that the valve can be more reliable, long service life.
The above description is only the preferred embodiment of the present invention, and is not intended to limit the present invention, any modification, equivalent replacement, or improvement made within the design concept of the present invention should be included within the protection scope of the present invention.
Claims (5)
1. A slowly-closed pressure-regulating and pressure-stabilizing valve comprises a valve body (1), a valve cover (2), a ball valve (1004), a pressure gauge (1002), a needle-type regulating valve (1001) and a pressure-reducing pilot valve (1003), and is characterized in that the valve cover (2) is provided with guide pipes which are respectively connected with the two ends of a water inlet end and a water outlet end of the valve body (1), the guide pipes are respectively provided with the ball valve (1004) and the pressure gauge (1002) which detects the pressure of a medium flowing through the ball valve (1004) in real time, the guide pipe of the water inlet end of the valve body (1) is also provided with the needle-type regulating valve (1001), and the guide pipe of the outlet end of;
the valve body (1) further comprises a valve rod (4) and a valve clack (3) fixedly arranged with the valve rod (4), a piston sheet (52) and a diaphragm (8) clamped by the piston sheet (52) are further sleeved on the valve rod (4), a spring (7) with two ends respectively abutted to the inner wall of the valve cover (2) and the end face of the piston sheet (52) is further sleeved on the valve rod (4), and the piston sheet (52), the valve clack (3) and the valve rod (4) can axially move along the valve rod (4) under the combined action of medium pressure change in the valve body (1) and the reset elastic force of the spring (7);
still be equipped with hydraulic pressure chamber (5) that are used for buffering diaphragm (8) pressure that receives in valve body (1), hydraulic pressure chamber (5) are located between diaphragm (8) and valve body (1), just hydraulic pressure chamber (5) and valve body (1) interior medium flow chamber keep apart the setting, hydraulic pressure chamber (5) have stock solution chamber (51) through pipe connection.
2. A slowly-closing pressure-regulating and stabilizing valve as claimed in claim 1, characterized in that: the pipe that sets up between hydraulic pressure chamber (5) and stock solution chamber (51) is two, and is provided with single-phase liquid valve, the pipe sets up for flowing out and flowing into hydraulic pressure chamber (5) respectively, and is used for flowing into the pipe in hydraulic pressure chamber (5) and does not restrict the velocity of flow, and the pipe that flows out hydraulic pressure chamber (5) is provided with and is used for controlling the velocity of flow to realize the governing valve that slowly closes.
3. A slowly-closing pressure-regulating and stabilizing valve as claimed in claim 1, characterized in that: the sealing ring is arranged on the surface where the valve clack (3) abuts against the valve body (1), magnets are respectively clamped between the sealing ring and the valve clack (3) and between the sealing ring and the valve body (1), and the magnetic poles of the magnets are respectively arranged on the valve clack (3) and the valve body (1) and attract each other.
4. A slowly-closing pressure-regulating and stabilizing valve as claimed in claim 1, characterized in that: the density of the medium in the liquid storage cavity (51) is larger than that of the medium flowing in the valve body (1).
5. A slowly-closing pressure-regulating and stabilizing valve as claimed in claim 1, characterized in that: and one end of the valve rod (4) exposed out of the valve body (1) is also provided with a pull ring (41).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021161645.0U CN212509687U (en) | 2020-06-22 | 2020-06-22 | Slow-closing type pressure regulating and stabilizing valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021161645.0U CN212509687U (en) | 2020-06-22 | 2020-06-22 | Slow-closing type pressure regulating and stabilizing valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN212509687U true CN212509687U (en) | 2021-02-09 |
Family
ID=74438357
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202021161645.0U Active CN212509687U (en) | 2020-06-22 | 2020-06-22 | Slow-closing type pressure regulating and stabilizing valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN212509687U (en) |
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2020
- 2020-06-22 CN CN202021161645.0U patent/CN212509687U/en active Active
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