CN215763353U

CN215763353U - Wisdom valve system of compressed air pipeline

Info

Publication number: CN215763353U
Application number: CN202121953784.1U
Authority: CN
Inventors: 王博; 王朋; 李志波; 陈晓峰
Original assignee: Airthink Energy Saving Technology Shanghai Co ltd
Current assignee: Airthink Energy Saving Technology Shanghai Co ltd
Priority date: 2021-08-19
Filing date: 2021-08-19
Publication date: 2022-02-08
Anticipated expiration: 2031-08-19

Abstract

A smart valve system for a compressed air conduit, mounted on a system conduit, comprising: the inlet and the outlet of the electric air valve are connected in series on the system pipeline and are used for controlling the opening and the closing of the system pipeline and the opening, and the electric air valve is driven to open and control the opening through electric power; the two air pressure detection devices are respectively installed on the system pipelines at the two ends of the electric air valve in parallel through pressure measuring pipelines and are communicated with the system pipelines, so that the air pressure detection devices respectively detect the air pressures of the system pipelines at the two ends of the electric air valve; and the signal end of the controller is respectively in communication connection with the signal output ends of the two air pressure detection devices and the control end of the electric air valve, so that pressure signals output by the two air pressure detection devices are collected, and a control command can be input into the electric air valve to control the working state of the electric air valve. The utility model can intelligently connect all system pipelines of different pressure sections so as to realize automatic overflow, compensation, constant pressure and emergency air supply among the pipelines.

Description

Wisdom valve system of compressed air pipeline

Technical Field

The utility model relates to a compressed air system pipeline technology, in particular to an intelligent valve system of a compressed air pipeline.

Background

With the application of energy-saving technology of compressed air systems, partial pressure air supply is popularized, air compressors with different pressures are adopted to provide compressed air with different pressures for processes with different air pressure requirements, and a factory compressed air system is split into a plurality of subsystems to operate. If each system operates independently, a standby machine is required to be arranged in each system. If the field and the power distribution of a certain system are limited and the fluctuation of the gas amount is large, the self-regulation difficulty in the system is large, and the system cannot independently and stably operate.

In view of this, the inventor has designed an intelligent valve system for compressed air pipelines, which can intelligently connect various system pipelines at different pressure sections to achieve automatic overflow, compensation, constant pressure and emergency air supply among the pipelines.

SUMMERY OF THE UTILITY MODEL

In view of the above-mentioned drawbacks of the prior art, an object of the present invention is to provide an intelligent valve system for compressed air pipes.

To achieve the above object, the present invention provides an intelligent valve system for a compressed air pipe, which is installed on a system pipe connecting two air supply systems, comprising:

the inlet and the outlet of the electric air valve are connected in series on the system pipeline and are used for controlling the opening and the closing of the system pipeline and the opening, and the electric air valve is driven to open and control the opening through electric power;

the two air pressure detection devices are respectively installed on the system pipelines at the two ends of the electric air valve in parallel through pressure measuring pipelines and are communicated with the system pipelines, so that the air pressure detection devices respectively detect the air pressures of the system pipelines at the two ends of the electric air valve;

and the signal end of the controller is respectively in communication connection with the signal output ends of the two air pressure detection devices and the control end of the electric air valve, so that pressure signals output by the two air pressure detection devices are collected, and a control instruction can be input into the electric air valve to control the working state of the electric air valve, so that the air flow between the two air supply systems is controlled.

Preferably, the mechanical valve comprises a valve body, a valve cavity is arranged in the valve body, a valve seat is installed in the valve cavity, a penetrating valve hole is formed in the valve seat, and the valve hole is clamped, sealed and assembled with the valve core in a sliding mode; the valve core is used for controlling the on-off and the opening of the valve cavity positioned at the two ends of the valve hole;

the air inlet pipe head is communicated with a main air inlet pipe through a first air inlet pipe, and the main air inlet pipe is communicated with a system pipeline positioned in front of the electric air valve; the exhaust pipe head is communicated with an exhaust pipe, and the exhaust pipe is communicated with a system pipeline behind the electric air valve.

Preferably, the valve core is installed at one end of the valve rod, a damping cavity is further arranged in the valve body, a damping ring is sleeved on a part, located in the damping cavity, of the valve rod, a spring and a push ring are further installed in the damping cavity respectively, the push ring is installed at one end of the damping cylinder, the spring is sleeved on a part, located between the damping ring and the push ring, of the valve rod and used for applying elastic force, located between the damping ring and the push ring, to the damping ring and used for blocking the damping ring from moving towards the push ring, and therefore opening pressure of the valve core is guaranteed.

Preferably, the other end of the damping cylinder penetrates out of the valve body and then is assembled with the second valve plate in a circumferentially rotatable and axially movable manner, the damping cylinder is axially slidably sleeved on the valve rod, a threaded sleeve is sleeved outside the damping cylinder, the threaded sleeve and the second valve plate are assembled in a circumferentially rotatable and axially immovable manner, the threaded sleeve and the damping cylinder are assembled in a screwed manner through threads, a worm wheel is sleeved outside the threaded sleeve, the worm wheel and the worm part are in meshing transmission, the worm part is arranged on the worm shaft, and the worm shaft and the fifth valve plate are assembled in a circumferentially rotatable and axially immovable manner; the fifth valve plate and the second valve plate are both arranged on the first valve plate, and the first valve plate is arranged on the valve body.

Preferably, the valve further comprises a button switch, the other end of the valve rod penetrates through the valve body and then is assembled with the trigger plate, the button switch is installed on the third valve plate, and the third valve plate is installed on the first valve plate; the button switch is in an off state when pressed and in a closed state when not pressed, a signal end of the button switch is connected to the controller, and the trigger plate presses the button switch in an initial state.

Preferably, the stroke switch is further included, the triggering end of the stroke switch faces the triggering plate, the stroke switch is installed on the fourth valve plate, and the fourth valve plate is installed on the first valve plate.

Preferably, a lubricating oil cavity is further arranged in the valve body, a sealing ring and an auxiliary sealing ring are respectively mounted on the part of the valve body between the valve cavity and the damping cavity, the sealing ring is sealed with the valve rod and can be axially assembled in a sliding manner, the inner side of the auxiliary sealing ring is tightly attached to the valve rod and can be axially assembled in a sliding manner, a pressure maintaining air cavity, a lubricating strip mounting groove and a lubricating hole are respectively arranged on the auxiliary sealing ring, the pressure maintaining air cavity is communicated with a second air inlet pipe through a pressure maintaining air pipe, and the second air inlet pipe is communicated with the main air inlet pipe;

lubricating strip mounting groove, lubrication hole communicate each other, and lubrication hole one end runs through the inside wall of supplementary sealing ring, install the lubricating strip in the lubricating strip mounting groove, in the one end entering lubrication ring inslot of lubricating strip, the setting of lubrication ring groove is in the lubrication ring, and the lubrication ring is installed on the valve body and the lubrication ring groove passes through the lubricating oil intercommunication in drainage tube and the lubrication oil chamber.

Preferably, a through filling hole is formed in the position, located in the lubricating oil cavity, of the valve body, and the filling hole is sealed and plugged through a sealing plug.

Preferably, the auxiliary sealing ring is made of a high-elasticity material, and the lubricating strip is made of a sponge.

The utility model has the beneficial effects that:

the utility model uses the air pressure at the two ends or one end of the electric air valve as a control parameter to control the opening, closing and opening of the electric air valve, and the whole control process is very sensitive, quick and accurate, thereby effectively coping with the condition of large air pressure fluctuation and realizing the self-regulation of the air supply system.

In addition, the utility model also designs a standby mechanical valve, and the mechanical valve can not only prevent the mechanical valve from interfering the electric air valve through the damping design of the mechanical valve, but also can be emergently started when the electric air valve breaks down, thereby increasing the stability of the system.

Drawings

Fig. 1 is a schematic structural diagram of the first embodiment.

Fig. 2 is a schematic structural diagram of the first embodiment.

Fig. 3 is a schematic view of the structure of the mechanical valve.

Fig. 4 is an enlarged view of fig. 3 at F1.

Detailed Description

The technical solution in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention.

In the description of the present invention, it is to be understood that the terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer", and the like, indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, are merely for convenience in describing the present invention and simplifying the description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be construed as limiting the present invention.

Example one

Referring to fig. 1, the intelligent valve system of the present embodiment is installed on a system pipeline 110 connecting two air supply systems (system No. 1 and system No. 2 in the present embodiment), and each air supply system can independently supply air to a workshop; the wisdom valve system includes:

the inlet and the outlet of the electric air valve 210 are connected in series to the system pipeline 110 for controlling the opening and closing and the opening of the system pipeline, and the electric air valve is driven by electric power to open and control the opening. The electric air valve 210 of this embodiment is an electric butterfly valve, and the cross section (opening) of the system pipeline 110 at the two ends of the electric air valve 210 can be controlled by the butterfly valve.

Two air pressure detecting devices 220, the two air pressure detecting devices 220 are respectively installed on the system pipelines 110 at the two ends of the electric air valve 210 in parallel through the pressure measuring pipelines 120 and are communicated with the system pipelines 110, so that the air pressure detecting devices 220 respectively detect the air pressures of the system pipelines 110 at the two ends of the electric air valve 210. The air pressure detecting device 220 of the present embodiment may be an electronic barometer or a pressure sensor.

And a signal end of the controller 230 is in communication connection with the signal output ends of the two air pressure detection devices 220 and the control end of the electric air valve 210, so that pressure signals output by the two air pressure detection devices 220 can be collected, and a control instruction is input to the electric air valve 210 to control the opening, closing, opening and the like of the electric air valve 210, so as to control the air flow between the two air supply systems. The controller of this embodiment is used for receiving and dispatching analysis control instruction and carries out parameter operation, program operation, can select for use PLC, MCU, CPU, industrial computer etc. preferably PLC.

The operation process of this embodiment is as follows:

1. constant pressure overflow mode

When the overflow mode is set, the system collects the pressure in front of the electric air valve 210 through the two air pressure detection devices 220, when the pressure is greater than the set pressure, the electric air valve 210 is automatically opened, the difference value between the collected pressure and the set pressure is calculated in real time through the controller, the controller outputs a valve opening adjusting instruction to the electric air valve 210, and the electric air valve 210 opens the corresponding opening according to the instruction, so that intelligent overflow is realized, and the constant pressure of the system in front of the electric air valve 210 is ensured. The front of the present embodiment refers to the end of the air inlet of the electric air valve 210.

2. Automatic air supplement mode

When the automatic air supply mode is set, the system collects the pressure behind the electric air valve 210 through the two air pressure detection devices 220, when the pressure is smaller than the set pressure, the electric air valve 210 is automatically opened, the difference value between the collected pressure and the set pressure is calculated in real time through the controller, the controller outputs an opening adjusting instruction of the electric air valve 210, the electric air valve 210 opens corresponding opening according to the instruction, automatic air supply is achieved, and the constant pressure of the system behind the electric air valve 210 is ensured. The term "rear" in this embodiment refers to the end of the electric air valve 210 at the air outlet.

3. Emergency air supply mode

When the emergency air supply mode is set, the system collects the front/back pressure of the electric air valve 210, and when any pressure value is smaller than the set lowest pressure value of the system, the electric air valve 210 is automatically opened, so that emergency air supply from any air supply system to another air supply system is realized, and emergency guarantee that a certain system is insufficient in standby or not started timely before and after the electric air valve 210 is ensured.

4. Synthetic mode

The comprehensive mode can be compatible with the various modes, and according to the actual requirements on site, various instructions are activated, so that intelligent communication among different gas supply system pipelines is realized.

Example two

Referring to fig. 2 to 4, in the first embodiment, the air pressure in front of and/or behind the electric air valve 210 is monitored, and then the opening, closing and opening of the electric air valve 210 are controlled, but the pure electric control mode has sensitive response, simple structure and accurate adjustment, but the electric air valve 210 cannot be opened due to signal interruption, power failure and equipment failure, and the air pressure between the two air supply systems cannot be adjusted at this time. In order to avoid the above problems, the inventor adds a mechanical valve 300, and the mechanical valve 300 uses the air pressure difference between the front and the back of the electric air valve 210 to realize opening and closing and opening adjustment, so as to be used as a backup device of the electric air valve 210, and directly uses the mechanical valve 300 to control the air flow communication of the two air supply systems when the electric air valve 210 has a fault.

The mechanical valve 300 comprises a valve body 310, a valve cavity 311 is arranged in the valve body 310, a valve seat 320 is installed in the valve cavity 311, a penetrating valve hole 321 is formed in the valve seat 320, and the valve hole 321 is clamped, sealed and assembled with a valve core 330 in a sliding mode; the valve cavity 311 is connected to the inlet pipe head 151 and the outlet pipe head 152 at the two sides of the valve seat 320, and the valve core 330 is used to control the on-off and the opening of the valve cavity at the two ends of the valve hole. The air inlet pipe head 151 is communicated with a main air inlet pipe 130 through a first air inlet pipe 131, and the main air inlet pipe 130 is communicated with a system pipeline 110 positioned in front of an electric air valve 210; the exhaust head 152 is in communication with the exhaust pipe 140, and the exhaust pipe 140 is in communication with a system conduit located behind the electric gas valve 210.

The valve core 330 is installed on one end of the valve rod 340, the other end of the valve rod 340 penetrates through the valve body 310 and then is assembled with the trigger plate 342, the valve body 310 is also internally provided with a lubricating oil cavity 313 and a damping cavity 312, the part of the valve rod 340 located in the damping cavity 312 is sleeved with a damping ring 341, the damping cavity 312 is also internally provided with a spring 510 and a push ring 431, the push ring 431 is installed on one end of the damping cylinder 430, and the spring is sleeved on the part of the valve rod 340 located between the damping ring 341 and the push ring 431 and used for applying elastic force to the damping ring 341 to prevent the damping ring from moving towards the push ring, so that the opening pressure of the valve core is ensured;

the other end of the damping cylinder 430 penetrates through the valve body 310 and then is assembled with the second valve plate 352 in a circumferential rotating and axial moving mode, the damping cylinder 430 is axially slidably sleeved on the valve rod 340, a threaded sleeve 440 is sleeved outside the damping cylinder 430, the threaded sleeve 440 and the second valve plate 352 are assembled in a circumferential rotating and axial non-moving mode, the threaded sleeve 440 and the damping cylinder 430 are assembled in a screwing mode through threads, a worm wheel 610 is sleeved outside the threaded sleeve 440, the worm wheel 610 is in meshing transmission with a worm part 620, the worm part 620 is arranged on the worm shaft 420, and the worm shaft 420 and the fifth valve plate 355 are assembled in a circumferential rotating and axial non-moving mode. Fifth valve plate 355 and second valve plate 352 are mounted on first valve plate 351, and first valve plate 351 is mounted on valve body 310. When the valve core is used, the worm shaft 420 can be rotated to drive the threaded sleeve 440 to rotate circumferentially, so that the damping cylinder 430 is driven to move axially to control the compression length of the spring, and the opening force of the valve core is controlled. The opening force of the valve core is set so long as the mechanical valve 300 and the electric air valve 210 are prevented from interfering with each other. Before the air pressure does not reach the opening force of the valve core, the electric air valve 210 is adopted for control. Once the electric air valve 210 cannot be opened, as long as the air pressure difference between the air inlet pipe 151 and the air outlet pipe 152 is greater than the opening force of the valve core, the valve core will overcome the elastic force of the spring to move away from the valve hole, thereby connecting the system pipes 110 on both sides of the electric air valve 210. Although the design can cause larger errors, the standby device can avoid interference on the electric air valve 210 and can be automatically opened for standby when the electric air valve 210 has faults, so that the stability of the system is greatly improved, time can be provided for overhauling of the electric air valve 210, and normal operation of the system is ensured.

Preferably, in order to detect whether the mechanical valve 300 is activated to signal to the system that the electric gas valve 210 has failed, the inventors have also devised a push button switch 250, the push button switch 250 being mounted on the third valve plate 353, the third valve plate 353 being mounted on the first valve plate 351; the button switch 250 is in an off state when pressed and in an on state when not pressed, a signal end of the button switch 250 is connected to the controller, and in an initial state, the trigger board presses the button switch. Once the valve core is opened, the trigger plate releases the press of the button switch, the button switch can input signals to the controller, the controller judges that the mechanical valve 300 is started, and the electric air valve 210 has faults, so that a worker can be informed of overhauling according to a preset program.

More preferably, in order to timely feed back to the system that the pressure difference of the system pipeline at the two ends of the electric air valve 210 reaches an early warning value to remind the staff that the electric air valve must be serviced, the inventor has added a travel switch 240, the triggering end of the travel switch 240 faces the triggering plate and the travel switch is installed on a fourth valve plate 354, and the fourth valve plate 354 is installed on the first valve plate 351. When the valve core opening reaches the maximum value, the trigger plate triggers the travel switch, the travel switch sends a signal to the controller, and the controller judges that the pressure difference reaches an early warning value, so that the highest-level maintenance early warning is sent to the workers, and the workers can be maintained preferentially.

Preferably, a sealing ring 530 and an auxiliary sealing ring 530 are respectively installed on a portion of the valve body 310 between the valve cavity 311 and the damping cavity 312, the sealing ring 530 is sealed with the valve rod 340 and can be axially assembled in a sliding manner, the inner side of the auxiliary sealing ring 530 is tightly attached to and sealed with the valve rod 340 and can be axially assembled in a sliding manner, a pressure maintaining air cavity 531, a lubricating strip installation groove 532 and a lubricating hole 533 are respectively arranged on the auxiliary sealing ring 530, the pressure maintaining air cavity 531 is communicated with the second air inlet pipe 132 through the pressure maintaining air pipe 160, and the second air inlet pipe 132 is communicated with the main air inlet pipe 130. Lubricating strip mounting groove 532, lubrication hole 533 communicate each other, and lubrication hole 533 one end runs through the inside wall of auxiliary seal ring 530, install lubricating strip 710 in lubricating strip mounting groove 532, in the one end entering lubrication ring groove 721 of lubricating strip 710, lubrication ring groove 721 sets up in lubrication ring 720, lubrication ring 720 installs on valve body 310 and lubrication ring groove 721 passes through the lubricating oil intercommunication in drainage tube 170 and the lubricating oil chamber 313, valve body 310 is located lubricating oil chamber 313 department and is provided with filling hole 314 that runs through, and filling hole 314 seals up through sealing plug 410. When in use, the sealing plug can be pulled out to fill lubricating oil into the lubricating oil cavity 313.

The auxiliary sealing ring 530 is made of high-elasticity material, such as rubber and silica gel; the lubricating strip 710 is made of sponge, and this design can slowly guide the lubricating oil to the lubricating hole 533, and then the lubricating oil flows out from the lubricating hole 533 to the valve rod to lubricate the valve rod. And pressurize air cavity 531 exerts the interior extrusion force to the valve rod extrusion of auxiliary sealing ring 530 through the atmospheric pressure of total intake pipe to auxiliary sealing ring 530, can increase the leakproofness of auxiliary sealing ring 530 on the one hand, lubricating oil can be extruded from lubricating strip 710 during on the other hand extrusion, thereby increase the lubrication of valve rod, with the reduction sealing washer, the damping that the auxiliary sealing ring applyed to the valve rod, and utilize lubricating oil to form the oil blanket effect in the inboard of auxiliary sealing ring 530, with the increase leakproofness, thereby can deal with the leakproofness requirement when total intake pipe department input high-pressure draught.

The utility model is not described in detail, but is well known to those skilled in the art.

The foregoing detailed description of the preferred embodiments of the utility model has been presented. It should be understood that numerous modifications and variations could be devised by those skilled in the art in light of the present teachings without departing from the inventive concepts. Therefore, the technical solutions available to those skilled in the art through logic analysis, reasoning and limited experiments based on the prior art according to the concept of the present invention should be within the scope of protection defined by the claims.

Claims

1. The utility model provides a wisdom valving of compressed air pipeline, its installation is on the system pipeline which characterized in that includes:

2. The intelligent valve system according to claim 1, further comprising a mechanical valve, wherein the mechanical valve comprises a valve body, a valve cavity is arranged in the valve body, a valve seat is arranged in the valve cavity, a through valve hole is arranged on the valve seat, and the valve hole is clamped, sealed and slidably assembled with the valve core; the valve core is used for controlling the on-off and the opening of the valve cavity positioned at the two ends of the valve hole;

3. The intelligent valve system according to claim 2, wherein the valve core is installed at one end of the valve stem, a damping cavity is further provided in the valve body, a damping ring is sleeved on a portion of the valve stem located in the damping cavity, a spring and a push ring are further installed in the damping cavity, the push ring is installed at one end of the damping cylinder, and the spring is sleeved on a portion of the valve stem located between the damping ring and the push ring and is used for applying an elastic force to the damping ring to prevent the damping ring from moving towards the push ring, so as to ensure the opening pressure of the valve core.

4. The intelligent valve system according to claim 3, wherein the other end of the damping cylinder penetrates through the valve body and is assembled with the second valve plate in a circumferentially rotatable and axially movable manner, the damping cylinder is axially slidably sleeved on the valve rod, a threaded sleeve is sleeved outside the damping cylinder and is assembled with the second valve plate in a circumferentially rotatable and axially immovable manner, the threaded sleeve and the damping cylinder are assembled in a screwed manner, a worm wheel is sleeved outside the threaded sleeve, the worm wheel is in meshing transmission with a worm part, the worm part is arranged on a worm shaft, and the worm shaft is assembled with the fifth valve plate in a circumferentially rotatable and axially immovable manner; the fifth valve plate and the second valve plate are both arranged on the first valve plate, and the first valve plate is arranged on the valve body.

5. The smart valve system as claimed in claim 4, further comprising a push button switch, the other end of the stem penetrating the valve body and being assembled with the trigger plate, the push button switch being mounted on the third valve plate, the third valve plate being mounted on the first valve plate; the button switch is in an off state when pressed and in a closed state when not pressed, a signal end of the button switch is connected to the controller, and the trigger plate presses the button switch in an initial state.

6. The smart valve system of claim 5 further comprising a travel switch, an activation end of the travel switch facing the activation plate and the travel switch mounted to the fourth valve plate, the fourth valve plate mounted to the first valve plate.

7. The intelligent valve system according to any one of claims 3 to 6, wherein a lubricating oil cavity is further formed in the valve body, a sealing ring and an auxiliary sealing ring are respectively mounted on the portion of the valve body located between the valve cavity and the damping cavity, the sealing ring is sealed and axially slidably assembled with the valve rod, the inner side of the auxiliary sealing ring is tightly sealed and axially slidably assembled with the valve rod, a pressure maintaining air cavity, a lubricating strip mounting groove and a lubricating hole are respectively formed in the auxiliary sealing ring, the pressure maintaining air cavity is communicated with the second air inlet pipe through a pressure maintaining air pipe, and the second air inlet pipe is communicated with the main air inlet pipe;

8. The intelligent valve system according to claim 7, wherein the valve body is provided with a filling hole which penetrates through the valve body at the position of the lubricating oil cavity, and the filling hole is sealed and blocked by a sealing plug.

9. The intelligent valve system as claimed in claim 7, wherein the auxiliary sealing ring is made of high elastic material and the lubricating strip is made of sponge.