CN219809438U - Diaphragm valve pilot type controller - Google Patents
Diaphragm valve pilot type controller Download PDFInfo
- Publication number
- CN219809438U CN219809438U CN202320891400.0U CN202320891400U CN219809438U CN 219809438 U CN219809438 U CN 219809438U CN 202320891400 U CN202320891400 U CN 202320891400U CN 219809438 U CN219809438 U CN 219809438U
- Authority
- CN
- China
- Prior art keywords
- sealing
- diaphragm
- main air
- air passage
- valve core
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
- 238000007789 sealing Methods 0.000 claims abstract description 90
- 239000007788 liquid Substances 0.000 claims abstract description 22
- 210000001503 joint Anatomy 0.000 claims abstract description 5
- 230000006698 induction Effects 0.000 claims description 5
- 239000010865 sewage Substances 0.000 abstract description 7
- 238000009434 installation Methods 0.000 description 4
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 4
- 238000010586 diagram Methods 0.000 description 3
- 238000004891 communication Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000012528 membrane Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 230000000149 penetrating effect Effects 0.000 description 1
- 230000000737 periodic effect Effects 0.000 description 1
- 230000008961 swelling Effects 0.000 description 1
Landscapes
- Fluid-Driven Valves (AREA)
Abstract
The utility model discloses a diaphragm valve pilot type controller which comprises a controller body, wherein an upper cavity is arranged in the controller body, a liquid level sensing interface is arranged at the top of the upper cavity, an upper diaphragm is arranged in the upper cavity, and a valve core is fixedly arranged on the upper diaphragm; a main air passage is arranged below the valve core, a negative pressure interface is arranged at the bottom of the main air passage in a communicating manner, an air suction port which is in butt joint with the air suction port of the diaphragm valve is arranged at the side surface of the main air passage in a communicating manner, and a sealing component for controlling the on-off of the negative pressure interface and the air suction port is arranged in the main air passage; the bottom of the upper chamber is also provided with an air return hole, and the valve core is provided with a first air passage which enables the upper chamber to be communicated with the main air passage. The utility model has the characteristics of pure mechanical design, simple structure, difficult damage, stable performance and small volume, and can be widely applied to the field of sewage treatment.
Description
Technical Field
The utility model relates to the field of sewage treatment equipment, in particular to a diaphragm valve pilot type controller.
Background
In the sewage collection and transportation, the vacuum negative pressure transportation has low cost and good effect, and is widely applied to urban and rural sewage treatment pipe networks. In general, a vacuum collecting well is arranged at the sewage collecting end, a diaphragm valve connected with a negative pressure conveying pipeline is arranged in the vacuum collecting well, when the liquid level in the vacuum collecting well reaches a set height, the diaphragm valve is opened, and the negative pressure conveying pipeline works to pump away sewage in the vacuum collecting well. At present, it is generally adopted to sense the height of the liquid level through a liquid level sensor and control the on-off of a diaphragm valve through an electromagnetic valve connected with the diaphragm valve. Because the moisture in the vacuum collection well is big, if the leakproofness is not good, the electrical equipment is damaged by the tide easily, in addition, still need the periodic replacement power to provide the electric energy for solenoid valve and level sensor to guarantee the normal operating of diaphragm valve. Therefore, the existing structure has the problems of easy damp damage, need of periodically replacing power supply equipment and high cost.
Disclosure of Invention
The utility model aims to provide a pilot type controller of an adjusting valve, which solves the problem that an existing diaphragm valve is controlled by an electromagnetic valve and the electromagnetic valve is easy to damage due to tide.
The technical scheme adopted for solving the technical problems is as follows: the pilot type controller of the diaphragm valve comprises a controller body, wherein an upper cavity is arranged in the controller body, a liquid level sensing interface is arranged at the top of the upper cavity, an upper diaphragm is arranged in the upper cavity, and a valve core is fixedly arranged on the upper diaphragm; a main air passage is arranged below the valve core, a negative pressure interface is arranged at the bottom of the main air passage in a communicating manner, an air suction port which is in butt joint with the air suction port of the diaphragm valve is arranged at the side surface of the main air passage in a communicating manner, and a sealing component for controlling the on-off of the negative pressure interface and the air suction port is arranged in the main air passage; the bottom of the upper chamber is also provided with an air return hole, and the valve core is provided with a first air passage which enables the upper chamber to be communicated with the main air passage.
Further, seal assembly is including setting up the sealing block in main air flue, is provided with the second air flue that link up from top to bottom on the sealing block, still includes the sealing rod that one end inserted in the second air flue, for closing the intercommunication of induction port and negative pressure interface, be provided with in the second air flue with sealing rod complex first sealing washer, for opening the intercommunication of induction port and negative pressure interface, still be provided with the sealing washer recess of stepping down on the sealing rod, provide restoring force for sealing rod upward movement, be provided with first reset spring between sealing block and the sealing rod.
Further, the main air passage is internally provided with a limit boss on the sealing rod, and the air suction port is positioned above the limit boss on the sealing rod.
When the pressure in the liquid level sensing interface is reduced, the valve core can move upwards to restore to an initial state, and a second reset spring is arranged between the lower part of the valve core and the upper limit boss of the sealing rod; in order to ensure the tightness between the valve core and the valve core mounting hole, a second sealing ring is arranged between the valve core and the valve core mounting hole.
In order to ensure the air tightness of the sealing block, a third sealing ring is arranged between the sealing block and the inner wall of the main air passage.
In order to reduce the resistance of the first sealing ring to the sealing rod when the sealing rod moves up and down, the sealing ring abdication groove is of a cambered surface structure.
In order to facilitate processing and assembly, the controller body comprises a shell, a sealing seat arranged at the bottom of the shell, and a sealing cover arranged above the shell; for better fixed mounting of the upper diaphragm, a diaphragm mounting groove is formed in the upper end face of the shell, and the outer ring of the upper diaphragm is clamped in the diaphragm mounting groove.
The utility model has the beneficial effects that: the utility model controls the negative pressure interface to be communicated with the air suction port or the air return port by sensing the change of the liquid level pressure in the vacuum collecting well through the liquid level sensing interface, thereby controlling the opening and closing of the diaphragm valve. The utility model is driven by the upper diaphragm and the valve core through the design of the main air passage and the sealing component, and has the advantages of simple structure and small volume, thus the whole cost is low, and the installation and the arrangement are convenient.
The utility model will be described in more detail below with reference to the drawings and examples.
Drawings
Fig. 1 is a sectional view of the patent.
Fig. 2 is a front view of the present patent.
Fig. 3 is a schematic perspective view of the present patent.
Fig. 4 is a schematic diagram of the connection of the patent and the diaphragm valve.
Figure 5 is a schematic diagram of the controller's gas flow when the diaphragm valve of the present patent is in operation.
FIG. 6 is a schematic diagram of the controller gas flow when the diaphragm valve of the present patent is not in operation.
Detailed Description
In an embodiment, as shown in fig. 1 to 6, a diaphragm valve pilot type controller includes a controller body 1, the controller body 1 is composed of a housing 101, a seal seat 102 provided at the bottom of the housing 101, and a seal cover 103 provided above the housing 101. An upper chamber 2 is arranged in the controller body 1, a liquid level sensing interface 3 is arranged at the top of the upper chamber 2, and the liquid level sensing interface 3 is connected with a liquid level sensing tube 16 arranged in a vacuum collecting well 14. An upper diaphragm 4 is arranged in the upper chamber 2, the upper diaphragm 4 divides the upper chamber 2 into an upper independent chamber and a lower independent chamber, and a valve core 5 which moves up and down along with the upper diaphragm 4 is fixedly arranged on the upper diaphragm 4. When the water level in the vacuum collection well 14 rises, the pressure in the liquid level sensing tube 16 increases, and the air pressure in the space where the liquid level sensing port 3 and the upper chamber 2 thereof are positioned above the upper membrane 4 increases. When the air pressure is increased to a certain value, the upper diaphragm 4 deforms to drive the valve core 5 connected with the upper diaphragm to move downwards. In order to facilitate the installation and fixation of the upper diaphragm, an upper diaphragm installation groove 104 is formed in the upper end face of the upper casing 101, and the outer ring of the upper diaphragm 4 is press-fitted in the upper diaphragm installation groove 104. In order to prevent the upper diaphragm 4 from swelling and deforming when air pressure acts on the upper diaphragm 4, the deforming force of the upper diaphragm 4 cannot effectively act on the valve core 5, and a supporting plate 41 is arranged below the upper diaphragm 4.
A main air passage 6 is arranged below the valve core 5, a valve core mounting hole 62 for the valve core 5 to pass through is arranged between the upper chamber 2 and the main air passage 6, and a second sealing ring 12 is arranged between the valve core 5 and the valve core mounting hole 62, so that the tightness between the valve core 5 and the valve core mounting hole 62 is ensured. The bottom of the main air channel 6 is communicated with a negative pressure interface 7, and the negative pressure interface 7 is connected with a negative pressure conveying pipeline 15; the bottom of the upper chamber 2 is also provided with an air return hole 10, the air return hole 10 is communicated with the outside atmosphere, and the valve core 5 is provided with a first air passage 51 which enables the upper chamber 2 to be communicated with the main air passage 6. The side of the main air passage 6 is communicated with an air suction port 8 which is in butt joint with an air suction port 141 of a diaphragm valve 17, and a sealing component 9 which controls the on-off of the negative pressure interface 7 and the air suction port 8 is arranged in the main air passage 6.
Specifically, the sealing assembly 9 includes a sealing block 91 and a sealing rod 92 disposed in the main air duct 6, the sealing block 91 is provided with a second air duct 911 penetrating up and down, one end of the sealing rod 92 is inserted into the second air duct 911, and the diameter of the sealing rod 92 is slightly smaller than the inner diameter of the second air duct 911, so as to form a gap through which air passes.
A first sealing ring 93 matched with the sealing rod 92 is arranged in the second air channel 911, a sealing ring abdication groove 921 is also arranged on the sealing rod 92, when the first sealing ring 93 and the sealing ring abdication groove 921 are staggered, the first sealing ring 93 is matched with the sealing rod 92 for sealing, and the negative pressure interface 7 is disconnected with the air suction port 8; when the first sealing ring 93 and the sealing ring abdication groove 921 are at the same height, the first sealing ring 93 and the sealing ring abdication groove 921 are in clearance fit to form a gas circulation gap, and at this time, the negative pressure interface 7 and the air suction port 8 are communicated through the second air passage 911. In order to reduce the resistance of the sealing rod 92 and the first sealing ring 93 in moving fit, the sealing ring yielding groove 921 is in an arc surface structure. Meanwhile, in order to ensure the tightness between the sealing block 91 and the main air passage 6, a third sealing ring 13 is disposed between the sealing block 91 and the inner wall of the main air passage 6.
To limit the upper stroke of the sealing rod, a sealing rod upper limit boss 61 is disposed in the main air channel 6, meanwhile, the air suction port 8 is located above the sealing rod upper limit boss 61, when the valve core 5 moves downward, the lower end of the valve core 5 abuts against the upper end of the sealing rod 92, the bottom of the first air channel 51 is blocked by the sealing rod 92, so that the air suction port 8 and the air return hole 10 are disconnected.
A first return spring 94 is disposed between the sealing block 91 and the sealing rod 92 to provide an upward elastic restoring force for the sealing rod 92. Similarly, a second return spring 11 is arranged between the lower part of the valve core 5 and the inner wall of the main air passage 6, and provides elastic return force for upward movement of the valve core 5.
As shown in fig. 4, the negative pressure interface 7 is connected with a negative pressure conveying pipeline 15 in the vacuum collecting well 14, the air suction port 8 is communicated with an air suction interface of the diaphragm valve 17, the liquid level sensing interface 3 is connected with a liquid level sensing pipe 16, when the water level rises, gas in the liquid level sensing pipe 16 is compressed, and the air pressure in the liquid level sensing interface 3 is increased; when the water level drops, the air pressure decreases.
The specific working principle of the utility model is as follows: when the liquid level in the vacuum collecting well 14 rises, the gas in the liquid level sensing tube 16 is continuously compressed, so that the air pressure on the butt joint side of the upper die cavity 1 communicated with the liquid level sensing interface 3 is continuously increased, and when the air pressure is increased to a certain value, the upper diaphragm 4 overcomes the elastic force of the second reset spring 11 and drives the valve core 5 to move downwards. The bottom of the valve core 5 is pressed on the upper end of the sealing rod 92 and drives the sealing rod 92 to move downwards together, at this time, the air suction port 8 and the air return hole 10 are disconnected because the first air channel 51 is blocked, when the sealing rod 92 descends to the position where the sealing ring yielding groove 921 is aligned with the first sealing ring 93, the second air channel 911 is opened to form a gap channel for air circulation, the negative pressure interface 7 is communicated with the air suction port 8 through the second air channel 911, the diaphragm valve is opened, the negative pressure conveying pipeline 15 starts to work to pump away sewage in the vacuum collecting well 14, and the circulation path of air flow is shown in fig. 5.
When the water level in the vacuum collecting well 14 drops to a certain height, the air pressure in the liquid level sensing interface 3 is reduced, the pressure of the air pressure acting on the valve core 5 is smaller than the upward elastic force of the second reset spring 11, the valve core 5 moves upward to be separated from the sealing rod 92, normal pressure air in the air return hole 10 enters the upper chamber 2 and enters the main air passage 6 through the first air passage 51 to realize the communication between the air suction port 8 and the air return hole 10, meanwhile, the first sealing ring 93 and the sealing ring relief groove 921 are staggered, the first sealing ring 93 is sealed with the sealing rod 92, the second air passage 911 is disconnected, the communication between the negative pressure interface 7 and the air suction port 8 is disconnected, the diaphragm valve 17 is closed to stop working, and the flow path of air flow is shown in fig. 6.
The patent is described above by way of example with reference to the accompanying drawings. It will be clear that the utility model is not limited to the embodiments described above. As long as various insubstantial improvements are made using the method concepts and technical solutions of the present utility model; or the utility model is not improved, and the conception and the technical scheme are directly applied to other occasions and are all within the protection scope of the utility model.
Claims (7)
1. A diaphragm valve pilot operated controller, characterized by: the intelligent controller comprises a controller body (1), wherein an upper cavity (2) is arranged in the controller body (1), a liquid level sensing interface (3) is arranged at the top of the upper cavity (2), an upper diaphragm (4) is arranged in the upper cavity (2), and a valve core (5) is fixedly arranged on the upper diaphragm (4); the utility model discloses a valve core, including case (5), main air flue (6), case (5), main air flue (6) are provided with negative pressure interface (7) in the bottom intercommunication, and the side intercommunication of main air flue (6) is provided with induction port (8) with the butt joint of diaphragm valve induction port, be provided with seal assembly (9) of control negative pressure interface (7) and induction port (8) break-make in main air flue (6), the bottom of going up cavity (2) still is provided with return air hole (10), be provided with on case (5) and make first air flue (51) that go up cavity (2) and main air flue (6) keep the intercommunication.
2. The diaphragm valve pilot controller of claim 1, wherein: the sealing assembly (9) comprises a sealing block (91) arranged in a main air passage (6), a second air passage (911) which is vertically communicated is arranged on the sealing block (91), the sealing assembly further comprises a sealing rod (92) with one end inserted into the second air passage (911), a first sealing ring (93) matched with the sealing rod (92) is arranged in the second air passage (911), a sealing ring abdicating groove (921) is further formed in the sealing rod (92), and a first reset spring (94) is arranged between the sealing block (91) and the sealing rod (92).
3. The diaphragm valve pilot controller of claim 2, wherein: the main air flue (6) is internally provided with a sealing rod upper limit boss (61), and the air suction port (8) is positioned above the sealing rod upper limit boss (61).
4. A diaphragm valve pilot controller as claimed in claim 3, wherein: a second reset spring (11) is arranged between the lower part of the valve core (5) and an upper limit boss (61) of the sealing rod, a valve core mounting hole (62) for the valve core (5) to pass through is arranged between the upper chamber (2) and the main air passage (6), and a second sealing ring (12) is arranged between the valve core (5) and the valve core mounting hole (62).
5. The diaphragm valve pilot controller of claim 2, wherein: a third sealing ring (13) is arranged between the sealing block (91) and the inner wall of the main air passage (6).
6. The diaphragm valve pilot controller of claim 2, wherein: the seal ring abdication groove (921) is of a cambered surface structure.
7. The diaphragm valve pilot controller of claim 1, wherein: the controller body (1) comprises a shell (101), a sealing seat (102) arranged at the bottom of the shell (101), and a sealing cover (103) arranged above the shell (101); a diaphragm mounting groove (104) is formed in the upper end face of the shell (101), and the outer ring of the upper diaphragm (4) is clamped in the diaphragm mounting groove (104).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320891400.0U CN219809438U (en) | 2023-04-17 | 2023-04-17 | Diaphragm valve pilot type controller |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320891400.0U CN219809438U (en) | 2023-04-17 | 2023-04-17 | Diaphragm valve pilot type controller |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN219809438U true CN219809438U (en) | 2023-10-10 |
Family
ID=88208959
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202320891400.0U Active CN219809438U (en) | 2023-04-17 | 2023-04-17 | Diaphragm valve pilot type controller |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN219809438U (en) |
-
2023
- 2023-04-17 CN CN202320891400.0U patent/CN219809438U/en active Active
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN219809438U (en) | Diaphragm valve pilot type controller | |
| EP0459434B1 (en) | Hydropneumatic constant pressure device for automatic control of the operation and stopping of electrical motorpumps | |
| CN112627306A (en) | Split type full-pneumatic control vacuum toilet | |
| CN219452957U (en) | Mechanical diaphragm valve controller | |
| CN212455715U (en) | High-pressure large-flow pilot-operated electromagnetic valve for hydrogen fuel cell | |
| CN201293130Y (en) | Control valve for adjusting water level of pond | |
| CN113152609A (en) | Pneumatic control magnetic suction on-off type water valve | |
| CN209557141U (en) | A kind of novel external fuel pump core connection structure | |
| CN103629435B (en) | The secondary active lubrication device of a kind of guiding valve for railway vehicle control valve | |
| CN208778768U (en) | Liquid level Pneumatic valve and respective negative pressure water system | |
| CN218440705U (en) | Mechanism for controlling closed part to open water channel according to negative pressure generated by pump extraction | |
| CN107621031B (en) | Upward water adding humidifier | |
| CN219813837U (en) | Fluid switch device for opening channel according to negative pressure | |
| CN217027294U (en) | Pressure regulating device for energy-saving pump | |
| CN218347943U (en) | Mechanism for controlling lever to open water inlet according to negative pressure generated by pump suction | |
| CN218954068U (en) | Fluid control valve | |
| CN214008177U (en) | Novel flow induction device | |
| CN218440649U (en) | Mechanism for opening water channel according to negative pressure | |
| CN216789366U (en) | Armature structure of hydrogen isolation valve for fuel cell | |
| CN214063802U (en) | Pilot-operated type electromagnetic valve | |
| CN218236158U (en) | Electromagnetic valve structure based on Bernoulli principle | |
| CN218326475U (en) | Mechanism for controlling closed part to open water channel according to negative pressure generated by pump extraction | |
| CN115844210A (en) | Fluid switch device for opening channel according to negative pressure | |
| CN218761566U (en) | Pilot-operated type pneumatic control vacuum mechanical valve | |
| CN215634995U (en) | Flywheel battery and novel vacuum door pump interface thereof |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |