CN214789304U - Electric control pressure reducing valve - Google Patents
Electric control pressure reducing valve Download PDFInfo
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- CN214789304U CN214789304U CN202121239273.3U CN202121239273U CN214789304U CN 214789304 U CN214789304 U CN 214789304U CN 202121239273 U CN202121239273 U CN 202121239273U CN 214789304 U CN214789304 U CN 214789304U
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Abstract
The utility model provides an automatically controlled relief pressure valve, it includes: the device comprises an air source input port, an air output port, an air exhaust port, an air inlet pressurization module, an air exhaust decompression module and a pressure control module; the air inlet pressurization module is arranged between the air source input port and the output port and is controlled by the pressure control module to be communicated with or close a first channel between the air source input port and the output port; the exhaust pressure reduction module is arranged between the output port and the exhaust port and is controlled by the pressure control module to be communicated with or close the second channel between the output port and the exhaust port. The utility model can realize remote adjustment, and adjust the pressure and flow needed by the downstream by the given current or voltage signal; the upstream or downstream pressure condition can be read remotely, so that remote judgment is facilitated; and when the upstream air supply pressure is insufficient, the quick opening or closing can be realized, and whether the downstream pressure is maintained or not is selected.
Description
Technical Field
The utility model relates to a relief pressure valve especially relates to an automatically controlled relief pressure valve.
Background
As shown in fig. 1, it is a mechanical pressure reducing valve. The mechanical pressure reducing valve includes: the device comprises a reverse thread screw 1, a spring pressure plate 2, an exhaust port 3, a pressure adjusting spring 4, a valve rod 5, an output port 6, a valve head 7, a lower compression spring 8, an air source input port 9 and the like.
When the mechanical pressure reducing valve is used for air inlet pressurization: rotatory reverse-thread screw 1 makes spring pressure disk 2 downstream, and 4 elasticity of pressure regulating spring increase, and the pressure that is used in on the diaphragm increases (delta P), and the diaphragm drives 5 downstream of valve rod, opens the passageway between input port and the delivery outlet 6, increases 6 pressures of delivery outlet, and when 6 pressures of delivery outlet become delta P, 6 pressures of delivery outlet counteract in the balanced delta P of reverse side of diaphragm, and valve rod 5 moves upwards, closes the passageway between input port and delivery outlet 6.
When the mechanical pressure reducing valve exhausts and reduces output pressure:
the reverse thread screw 1 is rotated to enable the spring pressure plate 2 to move upwards, the spring elasticity is reduced, the delta P acting on the diaphragm can be reduced, the pressure of the output port 6 is larger than the delta P, the diaphragm moves upwards, the channel between the output port 6 and the exhaust port 3 is opened, and the channel between the output port 6 and the exhaust port 3 (between the upper part of the valve rod 5 and the diaphragm) is closed until the new delta P1 is balanced.
Therefore, the mechanical pressure reducing valve can only be adjusted in a manual mode, and certain inconvenience is brought to adjustment work. Therefore, it is necessary to provide a further solution to the above problems.
SUMMERY OF THE UTILITY MODEL
The utility model aims at providing an automatically controlled relief pressure valve to overcome the not enough that exists among the prior art.
In order to solve the technical problem, the technical scheme of the utility model is that:
an electrically controlled pressure relief valve, comprising: the device comprises an air source input port, an air output port, an air exhaust port, an air inlet pressurization module, an air exhaust decompression module and a pressure control module;
the air inlet pressurization module is arranged between the air source input port and the output port, and is controlled by the pressure control module to be communicated with or close a first channel between the air source input port and the output port;
the exhaust pressure reduction module is arranged between the output port and the exhaust port, and is controlled by the pressure control module to be communicated with or close a second channel between the output port and the exhaust port.
As the utility model discloses the improvement of automatically controlled relief pressure valve, the pressure boost module that admits air includes: the air inlet piezoelectric valve, the air inlet valve rod and the check valve;
the air inlet valve rod is arranged at the joint of the air source input port and the first channel and can be driven by the pressure control module to act after the air inlet piezoelectric valve receives a control signal; the check valve is arranged at the joint of the first channel and the output port and can be driven by the air inlet valve rod to be communicated or close the first channel between the air source input port and the output port.
As the utility model discloses the improvement of automatically controlled relief pressure valve, the air inlet valve rod with still be provided with a reset spring between the air supply entry.
As the improvement of the electric control pressure reducing valve, the check valve is a ball valve, and a second reset spring is also arranged between the output port and the check valve.
As the utility model discloses the improvement of automatically controlled relief pressure valve, the pressure boost module that admits air still includes the flat membrane head of admission valve, the flat membrane head of admission valve set up in admit air between piezoelectric valve and the valve rod that admits air.
As the utility model discloses the improvement of automatically controlled relief pressure valve, exhaust decompression module includes: the exhaust valve flat membrane head is arranged in the second channel and can be driven by the pressure control module to act after the exhaust piezoelectric valve receives a control signal.
As the utility model discloses the improvement of automatically controlled relief pressure valve, the flat membrane head of discharge valve with still be provided with third reset spring between the delivery outlet.
As the utility model discloses the improvement of automatically controlled relief pressure valve, the pressure control module includes: a pressure sensor and a drive diaphragm; the driving diaphragm triggers the actions of the air inlet pressurization module and the air exhaust decompression module, and the pressure sensor can acquire an air pressure signal at the output port and feed back a command signal to the air inlet pressurization module and the air exhaust decompression module.
As the utility model discloses the improvement of automatically controlled relief pressure valve, automatically controlled relief pressure valve still includes: the valve core comprises a valve core upper cover, an intermediate body and a base;
the gas source input port and the gas source output port are arranged on the base, the gas exhaust port is arranged on the intermediate body, and the gas inlet pressurization module and the gas exhaust decompression module are integrated in a space defined by the valve core upper cover and the intermediate body.
Compared with the prior art, the beneficial effects of the utility model are that: the utility model discloses an automatically controlled relief pressure valve passes through pressure sensor's detection, adopts the pressure control technique, and then controls low reaches demand pressure. The electric control pressure reducing valve of the utility model can realize remote adjustment, and adjust the pressure and flow required by the downstream by given current or voltage signals; the upstream or downstream pressure condition can be read remotely, so that remote judgment is facilitated; and when the upstream air supply pressure is insufficient (such as pipeline leakage and the like), the quick opening or closing can be realized, and whether the downstream pressure is maintained or not is selected.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings needed to be used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments described in the present invention, and for those skilled in the art, other drawings can be obtained according to the drawings without creative efforts.
FIG. 1 is a schematic structural diagram of a conventional mechanical pressure reducing valve;
FIG. 2 is a schematic structural view of an embodiment of the electrically controlled pressure reducing valve of the present invention;
FIG. 3 is a schematic diagram of the opening of the piezoelectric valve, wherein the pressure of the air source enters from the port 1 and is output from the port 2, and the port 2 is output to the driving diaphragm;
fig. 4 is a schematic diagram of the piezoelectric valve closed, in which the input of the 1 port of the gas source is closed, the 2-port residual pressure is discharged through the 3 port, and the residual pressure discharged from the 3 port is discharged through the exhaust port.
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.
As shown in fig. 2, the utility model provides an automatically controlled relief pressure valve, it includes: an air supply input port 10, an output port 20, an exhaust port 30, an intake plenum module 40, an exhaust plenum module 50, and a pressure control module 60.
The air inlet pressurization module 40 is arranged between the air source input port 10 and the output port 20, and is controlled by the pressure control module 60 to communicate or close a first channel 70 between the air source input port 10 and the output port 20;
the exhaust pressure reduction module 50 is disposed between the output port 20 and the exhaust port 30, and is controlled by the pressure control module 60 to communicate or close the second passage 80 between the output port 20 and the exhaust port 30.
The technical solution of the electrically controlled pressure reducing valve will be described below by way of example with reference to an embodiment.
As shown in fig. 2, the electrically controlled pressure reducing valve of the present embodiment includes: an air supply input port 10, an output port 20, an exhaust port 30, an intake plenum module 40, an exhaust plenum module 50, and a pressure control module 60.
The intake air supercharging module 40 is used for realizing the intake air supercharging of the electrically controlled decompression valve of the embodiment.
The intake plenum module 40 is disposed between the air source input port 10 and the output port 20 and is controlled by the pressure control module 60 to communicate with or close a first passage 70 between the air source input port 10 and the output port 20.
Specifically, the intake air supercharging module 40 includes: an intake piezoelectric valve 41, an intake valve stem 42, and a check valve 43.
The air inlet valve rod 42 is disposed at a connection position of the air source input port 10 and the first channel 70, and can be driven by the pressure control module 60 to act after the air inlet piezoelectric valve 41 receives a control signal. In this manner, intake valve stem 42 may be axially actuated by pressure control module 60 to open or close the connection between air supply input port 10 and first passageway 70. To effect the return of the inlet valve stem 42, a first return spring 44 is also provided between the inlet valve stem 42 and the source inlet. The first return spring 44 may be a pagoda spring, with the bottom abutting the source input port 10 and the top abutting the end of the inlet valve stem 42, as desired.
In addition, the intake pressurization module 40 further includes an intake valve flat membrane head 45, the intake valve flat membrane head 45 is disposed between the intake piezoelectric valve 41 and the intake valve rod 42, and an end of the intake valve rod 42 is connected to the intake valve flat membrane head 45. In this way, the air inlet valve rod 42 and the air inlet valve flat membrane head 45 can synchronously move downwards under the action of the pressure control module 60.
The check valve 43 is disposed at the junction of the first passage 70 and the output port 20 and is capable of being actuated by the inlet valve stem 42 to communicate with or close the first passage 70 between the source input port 10 and the output port 20. In one embodiment, check valve 43 is a ball valve. In order to achieve the return of the check valve 43, a second return spring 46 is further provided between the check valve 43 and the output port 20.
The exhaust pressure reduction module 50 is disposed between the output port 20 and the exhaust port 30, and controls to communicate or close the second passage 80 between the output port 20 and the exhaust port 30 by the pressure control module 60.
Specifically, the exhaust relief module 50 includes: an exhaust piezoelectric valve 51 and an exhaust valve flat membrane head 52.
The exhaust valve flat membrane head 52 is disposed in the second passage 80 and can be driven by the pressure control module 60 to operate after receiving a control signal from the exhaust piezoelectric valve 51. In this way, the exhaust valve flat membrane head 52 can be axially actuated by the pressure control module 60 to open or close the second passage 80 between the output port 20 and the exhaust port 30. In order to realize the reset of the exhaust valve flat membrane head 52, a third reset spring is also arranged between the exhaust valve flat membrane head 52 and the output port 20.
The pressure control module 60 is used for triggering the actions of the intake air supercharging module 40 and the exhaust gas decompression module 50.
Specifically, the pressure control module 60 includes: a pressure sensor 61 and a drive diaphragm 62.
Wherein, the pressure sensor 61 is integrated on a circuit board 610, and the pressure sensor 61 can collect the air pressure signal at the output port 20 and feed back the command signal to the intake pressure increasing module 40 and the exhaust pressure reducing module 50 to control the operation of the intake piezoelectric valve 41 and the exhaust piezoelectric valve 51. The driving diaphragms 62 are used for triggering the operations of the intake pressurizing module 40 and the exhaust depressurizing module 50, and are arranged between the intake piezoelectric valve 41 and the intake valve flat membrane head 45, and between the exhaust piezoelectric valve 51 and the exhaust valve flat membrane head 52. Therefore, when the intake piezoelectric valve 41 and the exhaust piezoelectric valve 51 operate, a certain pressure difference can be generated between the two sides of the driving diaphragm 62, and the intake pressurizing module 40 and the exhaust depressurizing module 50 are triggered to operate. In one embodiment, the drive diaphragm 62 may be a butterfly piezoelectric valve output drive diaphragm 62.
When the electric control pressure reducing valve is used for air inlet pressurization, an air source is input from an air source input port 10, an air inlet valve rod 42 is in a closed state, when an air inlet piezoelectric valve 41 is opened by a control signal, an air pressure driving diaphragm 62 presses an air inlet flat membrane head and the air inlet valve rod 42 to move downwards, a channel between the air source input port 10 and a check valve 43 is opened, and the check valve 43 is opened by air pressure to flow to an output port 20; the output port 20 is connected with the pressure sensor 61, when the pressure sensor 61 detects that the output pressure reaches a set value, the air inlet piezoelectric valve 41 is closed, the air pressure acting on the air pressure driving diaphragm 62 is discharged through the 3 ports of the air inlet piezoelectric valve 41, the air inlet valve rod 42 moves upwards under the action of the lower spring, and the channel between the air source input port 10 and the output port 20 is closed.
When the electric control pressure reducing valve exhausts and reduces pressure: when the pressure sensor 61 detects that the pressure of the output port 20 is greater than a set value, the control signal opens the exhaust piezoelectric valve 51, the air pressure drives the diaphragm 62, the exhaust valve flat diaphragm head 52 moves downwards, a channel between the output port 20 and the exhaust port 30 is opened, and the air is exhausted from the exhaust port 30; when the pressure of the output port 20 is reduced to a set value, the exhaust piezoelectric valve 51 is closed, the air pressure acting on the air pressure driving diaphragm 62 is exhausted through the 3 ports of the exhaust piezoelectric valve 51, and under the action of the spring force arranged on the exhaust valve flat membrane head 52, the exhaust valve flat membrane head 52 drives the valve head to move upwards, so that the channel between the output port 20 and the exhaust port 30 is closed.
Further, the electrically controlled pressure reducing valve further comprises: a valve core upper cover 90, a middle body 100 and a base 110. Wherein, the valve core upper cover 90 is installed on the top of the middle body 100, and a cavity suitable for assembling the air inlet piezoelectric valve 41 and the air outlet piezoelectric valve 51 is formed between the two. The first passage 70 is formed in the intermediate body 100, and the intake valve stem 42, the intake valve flat head 45 and the check valve 43 are integrated at one side of the inside of the intermediate body 100; the second passage 80 is formed in the middle body 100, and the exhaust valve flat membrane head 52 is integrated at the other side of the inside of the middle body 100. The base 110 is installed at the bottom of the middle body 100 with a sealing member 120 interposed therebetween. For example, the seal 120 may be a gasket. Further, the chamber between the check valve 43 and the base 110 communicates with the output port 20. The gas source input port 10 and the gas source output port 20 are opened on the base 110, and the gas exhaust port 30 is opened on the intermediate body 100.
Based on the same technical conception, the utility model also provides a technical scheme of automatically controlled decompression method.
The electronic control decompression method comprises the following steps:
receiving a first control signal, driving the diaphragm 62 to act under the action of air pressure, and communicating a first channel 70 between the air source input port and the air source output port through an air inlet valve rod 42 and a check valve 43;
when the pressure value at the output port is detected to reach a first set value, the driving diaphragm 62 is reset, and the air inlet valve rod 42 and the check valve 43 close a first channel 70 between the air source input port and the output port;
receiving a second control signal, driving the diaphragm 62 to act under the action of air pressure, and opening a second channel 80 between the output port and the exhaust port through the exhaust valve flat membrane head 52;
when the air pressure at the output port reaches a second set value, the driving diaphragm 62 is reset, and the exhaust valve flat diaphragm head 52 closes the second channel 80 between the output port and the exhaust port.
The technical scheme of the electric control pressure reducing method is exemplified by combining the specific structure of the electric control pressure reducing valve.
The electrically controlled pressure reduction method of the present embodiment includes: an intake air supercharging step and an exhaust gas decompression step.
Wherein the intake air supercharging step includes:
s1, inputting an air source from an air source input port, closing an air inlet valve rod, driving a diaphragm by air pressure when an air inlet piezoelectric valve is opened by a control signal, pressing an air inlet flat diaphragm head and the air inlet valve rod to move downwards, opening a channel between the air source input port and a check valve, and opening the check valve by the air pressure to flow to an output port;
and S2, when the pressure sensor detects that the output pressure reaches a set value, closing the air inlet piezoelectric valve, discharging the air pressure acting on the air pressure driving diaphragm through an opening of the air inlet piezoelectric valve, and enabling the air inlet valve rod to move upwards under the action of the lower spring to close a channel between the air source input port and the air source output port.
Wherein the step of exhausting and depressurizing comprises the following steps:
s3, when the pressure sensor detects that the pressure of the output port is greater than a set value, a control signal opens the exhaust piezoelectric valve, the air pressure drives the diaphragm, the flat diaphragm head of the exhaust valve moves downwards, a channel between the output port and the exhaust port is opened, and the gas is exhausted from the exhaust port;
and S4, when the pressure of the output port is reduced to a set value, closing the exhaust piezoelectric valve, discharging the air pressure acting on the air pressure driving diaphragm through the port of the exhaust piezoelectric valve, and driving the valve head of the exhaust valve to move upwards by the flat membrane head of the exhaust valve under the action of the spring arranged on the flat membrane head of the exhaust valve so as to close the channel between the output port and the exhaust port.
To sum up, the utility model discloses an automatically controlled relief pressure valve passes through pressure sensor's detection, adopts the pressure control technique, and then controls low reaches demand pressure. The electric control pressure reducing valve of the utility model can realize remote adjustment, and adjust the pressure and flow required by the downstream by given current or voltage signals; the upstream or downstream pressure condition can be read remotely, so that remote judgment is facilitated; and when the upstream air supply pressure is insufficient (such as pipeline leakage and the like), the quick opening or closing can be realized, and whether the downstream pressure is maintained or not is selected.
It is obvious to a person skilled in the art that the invention is not restricted to details of the above-described exemplary embodiments, but that it can be implemented in other specific forms without departing from the spirit or essential characteristics of the invention. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.
Furthermore, it should be understood that although the present description refers to embodiments, not every embodiment may contain only a single embodiment, and such description is for clarity only, and those skilled in the art should integrate the description, and the embodiments may be combined as appropriate to form other embodiments understood by those skilled in the art.
Claims (9)
1. An electrically controlled pressure relief valve, comprising: the device comprises an air source input port, an air output port, an air exhaust port, an air inlet pressurization module, an air exhaust decompression module and a pressure control module;
the air inlet pressurization module is arranged between the air source input port and the output port, and is controlled by the pressure control module to be communicated with or close a first channel between the air source input port and the output port;
the exhaust pressure reduction module is arranged between the output port and the exhaust port, and is controlled by the pressure control module to be communicated with or close a second channel between the output port and the exhaust port.
2. The electrically controlled pressure reducing valve of claim 1, wherein the intake plenum module comprises: the air inlet piezoelectric valve, the air inlet valve rod and the check valve;
the air inlet valve rod is arranged at the joint of the air source input port and the first channel and can be driven by the pressure control module to act after the air inlet piezoelectric valve receives a control signal; the check valve is arranged at the joint of the first channel and the output port and can be driven by the air inlet valve rod to be communicated or close the first channel between the air source input port and the output port.
3. The electrically controlled pressure reducing valve according to claim 2, wherein a first return spring is further provided between the inlet valve stem and the air supply inlet.
4. An electrically controlled pressure reducing valve according to claim 2 wherein the non-return valve is a ball valve and a second return spring is provided between the non-return valve and the outlet.
5. The electrically controlled pressure reducing valve according to claim 2, wherein the intake pressurization module further comprises an intake valve flat membrane head disposed between the intake piezoelectric valve and the intake valve stem.
6. The electrically controlled pressure relief valve of claim 1, wherein the vent relief module comprises: the exhaust valve flat membrane head is arranged in the second channel and can be driven by the pressure control module to act after the exhaust piezoelectric valve receives a control signal.
7. The electrically controlled pressure reducing valve according to claim 6, wherein a third return spring is further disposed between the exhaust valve flat membrane head and the output port.
8. The electronically controlled pressure relief valve of claim 1, wherein the pressure control module comprises: a pressure sensor and a drive diaphragm; the driving diaphragm triggers the actions of the air inlet pressurization module and the air exhaust decompression module, and the pressure sensor can acquire an air pressure signal at the output port and feed back a command signal to the air inlet pressurization module and the air exhaust decompression module.
9. The electrically controlled pressure relief valve according to claim 1, further comprising: the valve core comprises a valve core upper cover, an intermediate body and a base;
the gas source input port and the gas source output port are arranged on the base, the gas exhaust port is arranged on the intermediate body, and the gas inlet pressurization module and the gas exhaust decompression module are integrated in a space defined by the valve core upper cover and the intermediate body.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121239273.3U CN214789304U (en) | 2021-06-03 | 2021-06-03 | Electric control pressure reducing valve |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121239273.3U CN214789304U (en) | 2021-06-03 | 2021-06-03 | Electric control pressure reducing valve |
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| CN214789304U true CN214789304U (en) | 2021-11-19 |
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| CN202121239273.3U Active CN214789304U (en) | 2021-06-03 | 2021-06-03 | Electric control pressure reducing valve |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113175553A (en) * | 2021-06-03 | 2021-07-27 | 苏州鹰创智能科技有限公司 | Electric control pressure reducing valve and electric control pressure reducing method |
| CN115970207A (en) * | 2022-12-27 | 2023-04-18 | 湖南中联重科应急装备有限公司 | Fire extinguishing system for fire truck and fire truck |
-
2021
- 2021-06-03 CN CN202121239273.3U patent/CN214789304U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113175553A (en) * | 2021-06-03 | 2021-07-27 | 苏州鹰创智能科技有限公司 | Electric control pressure reducing valve and electric control pressure reducing method |
| CN115970207A (en) * | 2022-12-27 | 2023-04-18 | 湖南中联重科应急装备有限公司 | Fire extinguishing system for fire truck and fire truck |
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