CN214579069U - Safety shut-off combined functional valve - Google Patents
Safety shut-off combined functional valve Download PDFInfo
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- CN214579069U CN214579069U CN202120864678.XU CN202120864678U CN214579069U CN 214579069 U CN214579069 U CN 214579069U CN 202120864678 U CN202120864678 U CN 202120864678U CN 214579069 U CN214579069 U CN 214579069U
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- valve
- safety shut
- valve body
- function valve
- subassembly
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Abstract
The utility model discloses a turn-off combination function valve safely, turn-off unit subassembly, balanced unit subassembly, guide's control subassembly and combined function valve body including safety, the combined function valve body is provided with two cavitys, two through the auxiliary hole intercommunication between the cavity, turn-off unit subassembly and one side cavity cooperation installation safely, balanced unit subassembly and the cavity cooperation installation of opposite side of turning off, guide's control unit installs the side at the combined function valve body. The utility model discloses turn-off combination function valve safely turns off unit subassembly and balanced unit subassembly and carried out ingenious optimization integration, unites two into one two big function valves, has greatly reduced the cost, has saved the operation usage space, has further guaranteed sealed effect moreover, has improved factor of safety.
Description
Technical Field
The utility model belongs to the technical field of the combined function valve, concretely relates to safety shut-off combined function valve.
Background
As is well known, a safety shut-off valve is an important element in a pump-accumulator (high-pressure tank) high-pressure water descaling system, provides safety guarantee for a gas-water mixed high-risk system, can instantly release huge pressure when a main pipeline loses pressure suddenly due to certain factors, and plays an important role in preventing high-pressure gas leakage and other series of loss, safety accidents and other problems caused by the pressure. And the balance stop valve between the safety shut-off valve and the accumulator can completely cut off the connection between the accumulator and the main pipeline, thereby further ensuring the safety of the safety shut-off valve and the previous element during maintenance.
At present, the pump-accumulator is mostly in a structure of connecting a safety shut-off valve and a balance stop valve single valve in series and externally, and because the number of the structural joints is large, leakage factors and danger coefficients between the valves are increased, and the occupied space is large.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide a turn-off combination function valve safely to solve the problem that proposes among the above-mentioned background art.
In order to achieve the above object, the utility model provides a following technical scheme: the utility model provides a safety shut-off combination function valve, shuts off the unit subassembly, balances by unit subassembly, pilot control subassembly and combination function valve body including safety, the combination function valve body is provided with two cavitys, two through the auxiliary hole intercommunication between the cavity, the safety is shut off unit subassembly and one side cavity cooperation installation, the balance is by the unit subassembly and the cavity cooperation installation of opposite side, the pilot control unit mount is in the side of combination function valve body.
Preferably, the combined function valve body is fixedly provided with a flange assembly at one side of the auxiliary hole through a bolt, and a release valve is installed at the center of the flange assembly.
Preferably, a protective cover is arranged outside the air release valve.
Preferably, one side of the combined function valve body is fixedly provided with a hydraulic cylinder upper cavity, a hydraulic cylinder lower cavity is installed below the combined function valve body close to one side of the hydraulic cylinder upper cavity, the hydraulic cylinder lower cavity is connected with the combined function valve body through a water pipe, and a first ball valve, a second ball valve and a third ball valve are installed on the water pipe respectively.
Preferably, one side of the combined function valve body, which is close to the safety shut-off unit assembly, is provided with a water reversing valve through a water through hole, the water reversing valve is provided with a pneumatic control assembly through a pipeline, and one side of the pneumatic control assembly is fixedly connected with the pilot control assembly.
Preferably, the combined function valve body is provided with a pressure gauge at one side of the water reversing valve through a pressure measuring hole.
Preferably, a valve rod and a first valve seat are installed at the bottom end of the safety shutoff unit assembly, the first valve seat is fixedly connected with the combined function valve body, the bottom end of the valve rod is arranged inside the first valve seat, the valve rod is connected with the inner wall of the first valve seat through a sealing ring installed inside an arranged sealing groove to form a soft seal, and an inclined valve port of the valve rod is in contact fit with an inclined valve port of the first valve seat to form a hard seal between the valve ports.
Preferably, a valve sleeve, a second valve seat and a valve core are installed at the bottom end of the balance stop unit assembly, the valve sleeve is installed at the top end of the second valve seat, the second valve seat is fixedly connected with the combined function valve body, one end of the valve core penetrates through the valve sleeve and is arranged in the second valve seat, and a sealing ring is arranged between the outer side of the valve core and the inner wall of the valve sleeve to form soft sealing; the inclined plane valve port of the second valve seat is contacted and matched with the inclined plane valve port of the valve core to form hard seal between the valve ports, and the hard seal and the sealing ring form double seal effect.
Preferably, the driving device of the balance cut-off unit assembly is electric
Compared with the prior art, the beneficial effects of the utility model are that:
(1) the utility model discloses a this combination function valve compact structure function unites two into one, greatly the cost is reduced has saved the operation usage space, has further guaranteed sealed effect moreover, has improved factor of safety.
(2) The utility model discloses it has two kinds of states simply to say that the valve operation has: the first ball valve, the second ball valve and the third ball valve are opened, and the pilot control assembly does not work in the state that the third ball valve is closed; the second ball valve, the first ball valve and the third ball valve are opened, the second ball valve is closed, and the pilot control assembly can only act at the moment. The specific process is as follows: firstly, after a valve is installed, a main valve in an initial state is in a closed state, at the moment, a third ball valve needs to be closed, a first ball valve and a second ball valve are opened, at the moment, high-pressure water on the pump receiving side pushes up a valve rod of a safety shutoff unit assembly to open the valve, and the high-pressure water is pumped into a lower cavity of a hydraulic cylinder of the safety shutoff unit assembly through an external pipeline; the pressure of the upper cavity and the lower cavity is basically balanced when the pressure flows into the upper cavity of the hydraulic cylinder through the central hole of the valve rod, and the valve rod is easier to open; however, since the third ball valve is closed, the water switching valve and the water passage are blocked, and water cannot enter, that is, the pilot control unit cannot be automatically controlled. At the moment, in order to enable the pilot control assembly to function, the second ball valve needs to be closed, the first ball valve and the third ball valve are opened, the water reversing valve is a passage, high-pressure water can enter the lower cavity of the hydraulic cylinder only through the water reversing valve, the water reversing valve controls reversing through the pneumatic control assembly, and the water in the hydraulic cylinder is determined to enter or be discharged. The pneumatic control assembly controls the water reversing valve in a normal opening state to enable high-pressure water to enter the lower cavity of the hydraulic cylinder and enter the upper cavity of the hydraulic cylinder through the central hole of the valve rod, the state at the moment is consistent with the closing state of the third ball valve, and the opening states of the first ball valve and the second ball valve are consistent; however, when the high-pressure side of the pump is rapidly decompressed for some reason, the pressure intensity of the side of the connecting tank is too large, a large amount of pressure can be rapidly released, the valve rod can be rapidly closed by a large pressure difference, the electromagnetic valve of the pneumatic control assembly part obtains a reversing signal at the moment, the water reversing valve is controlled to reverse, the lower cavity is communicated with the outside, the water in the lower cavity of the hydraulic cylinder is removed, and the valve rod 18 is completely closed by the pressure difference of the upper cavity and the lower cavity at the moment. When the valve is overhauled, the balance stop unit assembly is closed, the first ball valve is closed, the second ball valve is opened, the pipeline pressure is exhausted, the air release valve is opened, the pressure in the valve is exhausted, and the valve can be safely overhauled.
Drawings
Fig. 1 is a schematic view of the overall structure of a safety shut-off combined functional valve of the present invention;
fig. 2 is a schematic view of the installation of the water pipe of the safety shut-off combined functional valve of the present invention;
fig. 3 is the utility model relates to a manometer installation sketch map of turn-off combination function valve safely.
In the figure: 1. a safety shutdown unit assembly; 2. a balanced cutoff unit assembly; 3. a pilot control assembly; 4. a combined function valve body; 5. a cavity; 6. an auxiliary hole; 7. a flange assembly; 8. a deflation valve; 9. an upper cavity of the hydraulic cylinder; 10. a lower cavity of the hydraulic cylinder; 11. a water pipe; 12. a first ball valve; 13. a second ball valve; 14. a third ball valve; 15. a water diverter valve; 16. a pneumatic control assembly; 17. a pressure gauge; 18. a valve stem; 19. a first valve seat; 20. a valve housing; 21. a second valve seat; 22. a valve core.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.
Please refer to fig. 1-3, the utility model provides a safety shut-off combination function valve, including safety shut-off unit subassembly 1, balanced unit subassembly 2, pilot control subassembly 3 and combination function valve body 4, combination function valve body 4 is for forging the valve body, combination function valve body 4 is provided with two cavitys 5, communicate through auxiliary hole 6 between two cavitys 5, safety shut-off unit subassembly 1 and one side cavity 5 cooperation installation, balanced unit subassembly 2 and the cavity 5 cooperation installation of opposite side of closing, pilot control subassembly 3 installs the side at combination function valve body 4.
In the embodiment, preferably, the combined function valve body 4 is fixedly provided with a flange assembly 7 on one side of the auxiliary hole 6 through a bolt, a gas release valve 8 is installed in the center of the flange assembly 7, residual gas in the cavity can be removed through the gas release valve 8 when the valve is overhauled, pressure is released, and safety of operating personnel is guaranteed;
in the embodiment, preferably, a protective cover is arranged on the outer side of the air release valve 8, so that the normal action effect and the service life of the air release valve 8 are ensured;
in this embodiment, preferably, a hydraulic cylinder upper chamber 9 is fixedly disposed on one side of the combined function valve body 4, a hydraulic cylinder lower chamber 10 is disposed below one side of the combined function valve body 4 close to the hydraulic cylinder upper chamber 9, the hydraulic cylinder lower chamber 10 is connected to the combined function valve body 4 through a water pipe 11, a first ball valve 12, a second ball valve 13 and a third ball valve 14 are respectively disposed on the water pipe 11, a water reversing valve 15 is disposed on one side of the combined function valve body 4 close to the safety shut-off unit component 1 through a water through hole, a pneumatic control component 16 is disposed on the water reversing valve 15 through a pipeline, one side of the pneumatic control component 16 is fixedly connected to the pilot control component 3, the pneumatic control component 16 is connected to the water reversing valve 15 through the water pipe 11, the water pipe 11 is provided with a first ball valve 12, a second ball valve 13 and a third ball valve 14 to control the flow direction of water and further control the main valve part, and the safety shut-off combined functional valve has the advantages that: the combined valve body integrates two valves with different functions, so that the installation space is greatly saved, the connection of a connecting pipe part is reduced between the two valves, the whole leakage points are reduced, the possibility of valve leakage is reduced, the safety is enhanced, the service life is prolonged, and the reasonable layout of the pilot control assembly 3, the pneumatic control assembly 16, the water reversing valve 15 and the control water pipe 11 ensures that the valves are controlled very simply and conveniently;
in this embodiment, preferably, the combined function valve body 4 is provided with a pressure gauge 17 on one side of the water reversing valve 15 by forming a pressure measuring hole;
in this embodiment, preferably, the bottom end of the safety shut-off unit assembly 1 is provided with a valve rod 18 and a first valve seat 19, the first valve seat 19 is fixedly connected with the combined function valve body 4, the bottom end of the valve rod 18 is arranged inside the first valve seat 19, the valve rod 18 is connected with the inner wall of the first valve seat 19 by installing a sealing ring inside an opened sealing groove, and a valve port of the valve rod 18 and a valve port of the first valve seat 19 are matched to be hard sealing;
in this embodiment, preferably, a valve sleeve 20, a second valve seat 21 and a valve core 22 are installed at the bottom end of the balance cut-off unit assembly 2, the valve sleeve 20 is installed at the top end of the second valve seat 21, the second valve seat 21 is fixedly connected with the combined function valve body 4, one end of the valve core 22 passes through the valve sleeve 20 and is arranged inside the second valve seat 21, a sealing ring is arranged between the outer side of the valve core 22 and the inner wall of the valve sleeve 20, and a valve port of the valve core 22 and a valve port of the second valve seat 21 form a hard seal;
in this embodiment, the driving device of the balance cut-off unit assembly 2 is preferably electrically driven.
The utility model discloses a theory of operation as follows and use flow: firstly, after the valve is installed, a main valve is in a closed state in an initial state, the third ball valve 14 needs to be closed, the first ball valve 12 and the second ball valve 13 are opened to open the safety shut-off unit assembly 1, and at the moment, high-pressure water on one side of a pump is connected to push a valve rod 18 of the safety shut-off unit assembly 1 upwards to open the valve and pump the high-pressure water into a lower cavity of a hydraulic cylinder 10 of the safety shut-off unit assembly 1 through an external pipeline; the water flows into the upper cavity 9 of the hydraulic cylinder through the central hole of the valve rod 18, the pressure of the upper cavity and the pressure of the lower cavity are basically balanced, and the valve rod 18 is easier to open; however, since the third ball valve 14 is closed, the passage between the water change valve 15 and the water is blocked, and the water cannot enter the water change valve 15, that is, the automatic control of the pilot control unit 3 cannot be performed. In order to achieve the function of automatic control, the second ball valve 13 needs to be closed, the first ball valve 12 and the third ball valve 14 need to be opened, the water reversing valve 15 is a passage, high-pressure water can enter the lower cavity 10 of the hydraulic cylinder only through the water reversing valve 15, and the water reversing valve 15 is controlled to reverse through the pneumatic control assembly 16 to determine the entering or discharging of water in the hydraulic cylinder. The pneumatic control assembly 16 controls the water reversing valve 15 under the normal opening state to enable high-pressure water to enter the lower cavity 10 of the hydraulic cylinder and enter the upper cavity 9 of the hydraulic cylinder through the central hole of the valve rod 18, and the state at the moment is consistent with the state that the third ball valve 14 is closed and the first ball valve 12 and the second ball valve 13 are opened; however, when the high-pressure side of the pump is rapidly decompressed for some reason, the pressure intensity of the high-pressure side of the connecting tank is too high, a large amount of pressure can be rapidly released, a large pressure difference can preferentially and rapidly close the valve rod 18, the solenoid valve of the pneumatic control assembly 16 part obtains a reversing signal at the moment, the water reversing valve 15 is controlled to reverse, the lower cavity 10 is communicated with the outside, water in the lower cavity of the hydraulic cylinder is removed, and the pressure difference between the upper cavity and the lower cavity enables the valve rod 18 to be completely closed. When the valve is overhauled, the balance stop unit component 2 is closed, the first ball valve 12 is closed, the second ball valve 13 is opened, the pipeline pressure is exhausted, the air release valve 8 is opened, the pressure in the valve is exhausted, and then the valve can be safely overhauled.
Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
Claims (9)
1. A safety shut-off combination function valve characterized by: including safety shut-off unit subassembly (1), balanced unit subassembly (2), pilot control subassembly (3) and combined function valve body (4) of ending, combined function valve body (4) are provided with two cavities (5), two communicate through auxiliary hole (6) between cavity (5), safety shut-off unit subassembly (1) and one side cavity (5) cooperation installation, the balance is by unit subassembly (2) and the cavity (5) cooperation installation of opposite side, the side at combined function valve body (4) is installed in pilot control subassembly (3).
2. A safety shut-off combination function valve as defined in claim 1 wherein: the combined function valve body (4) is fixedly provided with a flange component (7) on one side of the auxiliary hole (6) through a bolt, and a deflation valve (8) is installed in the center of the flange component (7).
3. A safety shut-off combination function valve as defined in claim 2 wherein: and a protective cover is arranged on the outer side of the air release valve (8).
4. A safety shut-off combination function valve as defined in claim 1 wherein: the hydraulic cylinder upper cavity (9) is fixedly arranged on one side of the combined function valve body (4), the hydraulic cylinder lower cavity (10) is installed below one side of the combined function valve body (4) close to the hydraulic cylinder upper cavity (9), the hydraulic cylinder lower cavity (10) is connected with the combined function valve body (4) through a water pipe (11), and a first ball valve (12), a second ball valve (13) and a third ball valve (14) are installed on the water pipe (11) respectively.
5. A safety shut-off combination function valve as defined in claim 1 wherein: the combined functional valve body (4) is close to one side of the safety shut-off unit component (1) and is provided with a water reversing valve (15) through a water through hole, the water reversing valve (15) is provided with a pneumatic control component (16) through a pipeline, and one side of the pneumatic control component (16) is fixedly connected with the pilot control component (3).
6. A safety shut off combination function valve according to claim 5 wherein: and a pressure gauge (17) is arranged on one side of the water reversing valve (15) of the combined function valve body (4) through a pressure measuring hole.
7. A safety shut-off combination function valve as defined in claim 1 wherein: valve rod (18) and first disk seat (19) are installed to the bottom of safety shut-off unit subassembly (1), first disk seat (19) and combined function valve body (4) fixed connection, the bottom setting of valve rod (18) is in the inside of first disk seat (19), valve rod (18) are through the inner wall connection at the seal groove internally mounted sealing washer of seting up and first disk seat (19).
8. A safety shut-off combination function valve as defined in claim 1 wherein: the balance cut-off valve is characterized in that a valve sleeve (20), a second valve seat (21) and a valve core (22) are installed at the bottom end of the balance cut-off unit component (2), the valve sleeve (20) is installed at the top end of the second valve seat (21), the second valve seat (21) is fixedly connected with the combined function valve body (4), one end of the valve core (22) penetrates through the valve sleeve (20) to be arranged inside the second valve seat (21), and a sealing ring is arranged between the outer side of the valve core (22) and the inner wall of the valve sleeve (20).
9. A safety shut-off combination function valve as defined in claim 1 wherein: the driving device of the balance cut-off unit component (2) is electric.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120864678.XU CN214579069U (en) | 2021-04-25 | 2021-04-25 | Safety shut-off combined functional valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120864678.XU CN214579069U (en) | 2021-04-25 | 2021-04-25 | Safety shut-off combined functional valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN214579069U true CN214579069U (en) | 2021-11-02 |
Family
ID=78328138
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202120864678.XU Active CN214579069U (en) | 2021-04-25 | 2021-04-25 | Safety shut-off combined functional valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN214579069U (en) |
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2021
- 2021-04-25 CN CN202120864678.XU patent/CN214579069U/en active Active
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