CN215720957U

CN215720957U - Intelligent dome valve for pneumatic conveying

Info

Publication number: CN215720957U
Application number: CN202121738510.0U
Authority: CN
Inventors: 王洋
Original assignee: Zhuozhou Fenghe Mechanical Equipment Co ltd
Current assignee: Zhuozhou Fenghe Mechanical Equipment Co ltd
Priority date: 2021-07-29
Filing date: 2021-07-29
Publication date: 2022-02-01
Anticipated expiration: 2031-07-29

Abstract

The utility model discloses an intelligent dome valve for pneumatic transmission, which comprises a conventional main body component, an air pressure sensor, a proximity switch, an upper temperature sensor and a controller, wherein the air pressure sensor is arranged on the outer wall of an air cylinder mounting cover and is communicated to an air pipe branch of an inflation interface; the two proximity switches are arranged on the outer wall of the cylinder mounting cover and can respectively detect the positions of the extending end of the rotating shaft driving the swing arm in the states of opening and closing the valve; the upper temperature sensor is arranged in the sensor mounting hole, and the inner end of the sensor mounting hole faces to the arc top of the valve core; the controller sets up on the outer wall of cylinder installation cover and has alarming function, and baroceptor, proximity switch, go up temperature sensor and all connect electrically to the controller. The intelligent dome valve for pneumatic transmission can monitor various parameters of the dome valve, send out early warning in advance and avoid great equipment loss.

Description

Intelligent dome valve for pneumatic conveying

Technical Field

The utility model relates to the technical field of pneumatic conveying facilities, in particular to an intelligent dome valve for pneumatic conveying.

Background

The dome valve is a special valve which is widely applied to the field of bulk material pneumatic transportation. The dome valve used in China at present is generally between DN50 and DN300 in specification, the working state of the dome valve is that the dome valve is sealed by pressurizing through a rubber sealing ring when the dome valve is closed, and the dome valve is rotated and opened after the dome valve is released from contact with a valve core when the dome valve is opened. The dome valve can cut off the flowing material flow or the static material column entering the pressure tank and then close to realize sealing, thereby ensuring that the filling rate of the pressure tank is 100 percent, and the dome valve does not need to rely on a material level meter of a sending tank, so the control principle is simple and reliable.

According to the years of experience in designing, manufacturing and using dome valves of various specifications, there are several situations in which a dome valve will fail during operation: 1. the pneumatic actuator does not act in place, and the valve seal fails; 2. the sealing pressure of the sealing ring is insufficient due to insufficient pressure of the air source, the valve is sealed and fails, and the sealing ring is rapidly abraded under the scouring of materials carried by air flow to cause valve damage; 3. because the improper design of control system causes the valve to damage, the not enough or not giving the sealing washer pressure release open operation by mistake, lead to the valve to damage. Moreover, in the existing dome valve action control, manual operation is generally adopted, the air pressure inside the dome valve, whether action is in place and the temperature cannot be known in the operation process, and the maintenance cannot be carried out in time when a valve body fails, so that the working efficiency is influenced.

Therefore, it is necessary to develop an intelligent dome valve for pneumatic transmission in view of the above-mentioned drawbacks.

SUMMERY OF THE UTILITY MODEL

The utility model aims to provide an intelligent dome valve for pneumatic transmission, which can monitor various parameters of the dome valve, send out early warning in advance and avoid great equipment loss.

In order to solve the technical problems, the utility model adopts the following technical scheme:

the utility model relates to an intelligent dome valve for pneumatic conveying, which comprises a lower valve body, a middle valve base plate, an upper valve cover plate, a valve core, a main sealing ring, a cylinder, a rotating shaft, a cylinder mounting cover, an air pressure sensor, a proximity switch, an upper temperature sensor and a controller, wherein the air pressure sensor is arranged on the outer wall of the cylinder mounting cover and is communicated to an air pipe branch of an inflation interface, and the inflation interface is communicated to an inflation groove at the back of the main sealing ring; the two proximity switches are arranged on the outer wall of the cylinder mounting cover and can respectively detect the positions of the rotating shaft detection end driving swing arm in the states of opening and closing the valve; the upper temperature sensor is arranged in a sensor mounting hole, and the inner end of the sensor mounting hole faces to the arc top of the valve core; the controller is arranged on the outer wall of the cylinder mounting cover and has an alarming function, and the air pressure sensor, the proximity switch and the upper temperature sensor are all electrically connected to the controller.

Furthermore, the sensor mounting hole is arranged on the upper valve cover plate, and the sensor mounting hole is a blind hole, and the opening end of the sensor mounting hole is arranged on the outer circle side wall of the upper valve cover plate.

Furthermore, the distance between the bottom surface of the sensor mounting hole and the inner hole wall of the upper valve cover plate is 2-5 mm.

Furthermore, the temperature measuring valve further comprises a lower temperature sensor, wherein the lower temperature sensor is arranged at the bottom of the circumferential side wall of the lower valve body, and the temperature measuring end of the lower temperature sensor extends into the cavity of the lower valve body.

Furthermore, the lower temperature sensor is arranged in a return stroke area of the supporting arm in the valve core, the temperature measuring end of the lower temperature sensor is arranged as an elastic cantilever, and the inner supporting arm can touch the temperature measuring end.

Further, the rock wool board is cleaned in the touching side of interior support arm is installed through the clamp plate, it can be right when the return stroke to clean the rock wool board the clearance is cleaned to the temperature measuring end.

Furthermore, a wireless communication module is arranged in the controller and is communicated with the industrial control upper computer through the wireless communication module.

Compared with the prior art, the intelligent dome valve for pneumatic transmission has the beneficial effects that:

according to the intelligent dome valve for pneumatic conveying, the temperature of the intelligent dome valve for pneumatic conveying close to a material channel is monitored by setting the control parameters of the controller, and an emergency opening action is adopted when overheating occurs, so that the sealing ring is prevented from being damaged by overheated powder; the inflation pressure of the inflation groove is monitored through the air pressure sensor, the faults of under-pressure closing or pressure maintaining opening are avoided, and the sealing element is protected; through the setting of two proximity switches, can detect whether the action of swing arm targets in place, avoid taking place to close or open and not target in place and the trouble that arouses. When a fault occurs, the alarm module of the controller sends out audible and visual alarm to show the attention of operation and maintenance personnel, find out fault treatment in time and avoid loss expansion. The intelligent dome valve for pneumatic transmission can monitor various parameters of the dome valve, send out early warning in advance and avoid great equipment loss.

In addition, the sensor mounting hole is formed in the upper valve cover plate, so that the measuring point of the upper temperature sensor is closest to a material passing through the valve, the real temperature of a reaction material close to the valve core is measured close to the main sealing ring, and the accuracy and controllability of the temperature are improved. The lower temperature sensor is arranged at the bottom of the circumferential side wall of the lower valve body, so that the temperature in the cavity of the lower valve body can be monitored, and the influence caused by overheating of the bottom is avoided; the temperature measuring end of the lower temperature sensor is an elastic cantilever, the inner support arm can touch the temperature measuring end, and when the inner support arm can touch the temperature measuring end, the vibrating temperature measuring end timely removes dust attached to the vibrating temperature measuring end, so that the influence of measurement errors on the real temperature is avoided; through the arrangement of the wiping rock wool plate, the temperature measuring end can be wiped for dust removal in the process of opening the valve core when the inner support arm returns, and the accuracy of temperature measurement is ensured. Through the arrangement of the line communication module, the intelligent dome valve for pneumatic transmission is conveniently integrated into an intelligent control system of a factory for unified management, the operation condition of the valve is observed in real time, a report is recorded, and the management level is improved.

Drawings

The utility model is further illustrated in the following description with reference to the drawings.

FIG. 1 is a schematic perspective view of an intelligent dome valve for pneumatic conveying according to the present invention;

FIG. 2 is a schematic top view of the intelligent dome valve for pneumatic conveying of the present invention;

FIG. 3 is a schematic sectional view taken along line A-A in FIG. 2;

FIG. 4 is a schematic cross-sectional view of B-B of FIG. 2;

fig. 5 is a schematic sectional structure view of C-C in fig. 2.

Description of reference numerals: 1. a lower valve body; 2. a middle valve base plate; 3. an upper valve cover plate; 301. an inflation groove; 302. an inflation interface; 303. a sensor mounting hole; 4. a valve core; 5. a primary seal ring; 6. a cylinder; 7. a rotating shaft; 701. swinging arms; 8. a cylinder mounting cover; 9. an air passage block; 10. an air pressure sensor; 11. a proximity switch; 12. a controller; 13. a lower temperature sensor; 14. and (4) wiping the rock wool board.

Detailed Description

The core of the utility model is to provide the intelligent dome valve for pneumatic transmission, which can monitor various parameters of the dome valve, send out early warning in advance and avoid great equipment loss.

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 a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope 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.

Referring to the drawings, FIG. 1 is a schematic perspective view of an intelligent dome valve for pneumatic conveying according to the present invention; FIG. 2 is a schematic top view of the intelligent dome valve for pneumatic conveying of the present invention; FIG. 3 is a schematic sectional view taken along line A-A in FIG. 2; FIG. 4 is a schematic cross-sectional view of B-B of FIG. 2;

fig. 5 is a schematic sectional structure view of C-C in fig. 2.

In a specific embodiment, as shown in fig. 1 to 5, the intelligent dome valve for pneumatic conveying of the present invention comprises a lower valve body 1, a middle valve seat 2, an upper valve cover plate 3, a valve core 4, a main seal ring 5, a cylinder 6, a rotating shaft 7, a cylinder mounting cover 8, a middle valve seat 2, and an upper valve cover plate 3. Fix at lower valve body 1 top through countersunk head screw, fixed main seal 5 between the two, main seal 5 is the rubber seal of C shape, and the inside wall of main seal 5 can top pressure on case 4. The main sealing ring 5 contains a sealing inner ring with a plurality of inflation channels along the circumferential direction and is communicated with the inflation groove 301. The bottom of the valve core 4 is connected with a two-end type rotating shaft 7 through an inner support arm, the rotating shaft 7 is rotatably connected in a shaft sleeve of the lower valve body 1, the extending end of the rotating shaft 7 is connected with the working end of the cylinder 6 through a swing arm, and the cylinder 6 can drive the valve core 4 to make 90-degree reciprocating rotation motion around the rotating shaft 7. The cylinder 6 is connected to the cylinder mounting cover 8 through a middle pin shaft hinge shaft.

The intelligent dome valve for pneumatic transmission comprises an air pressure sensor 10, a proximity switch 11, an upper temperature sensor and a controller 12, wherein the air pressure sensor 10 is installed on the outer wall of the cylinder installation cover 8 and is communicated to an air pipe branch of an inflation connector 302, and the inflation connector 302 is communicated to an inflation groove 301 at the back of the main sealing ring 5. The proximity switches 11 are two and are all installed on the outer wall of the cylinder installation cover 8 and can detect the positions of the rotating shaft 7 extending end driving swing arm 701 in the states of opening and closing the valve respectively. The upper temperature sensor is arranged in the sensor mounting hole 303, and the inner end of the sensor mounting hole 303 faces the arc top of the round gap part of the valve core 4. The controller 12 is installed on the outer wall of the cylinder installation cover 8 and has an alarm function, and the air pressure sensor 10, the proximity switch 11 and the upper temperature sensor are all electrically connected to the controller 12.

By setting the control parameters of the controller 12, the temperature of the intelligent dome valve for pneumatic conveying close to the material channel is monitored, and emergency opening action is adopted when overheating occurs, so that damage to a sealing ring caused by overheated powder is avoided; the inflation pressure of the inflation groove 301 is monitored through the air pressure sensor 10, so that the faults of under-pressure closing or pressure maintaining opening are avoided, and the sealing element is protected; through the arrangement of the two proximity switches 11, whether the action of the swing arm 701 is in place or not can be detected, and faults caused by the fact that the swing arm is closed or opened not in place are avoided. When a fault occurs, the alarm module of the controller 12 sends out an audible and visual alarm to show the attention of operation and maintenance personnel, find out the fault in time and process the fault, and avoid the loss expansion. The intelligent dome valve for pneumatic transmission can monitor various parameters of the dome valve, send out early warning in advance and avoid great equipment loss.

In an embodiment of the present invention, as shown in fig. 2 and 5, the sensor mounting hole 303 is provided on the upper bonnet plate 3, the sensor mounting hole 303 is a blind hole and has an open end on the outer circumferential side wall of the upper bonnet plate 3.

Specifically, as shown in fig. 5, the bottom surface of the sensor mounting hole 303 is 2 to 5 mm away from the inner hole wall of the upper valve cover plate 3.

The sensor mounting hole 303 is formed in the upper valve cover plate 3, so that the measuring point of the upper temperature sensor is closest to the material passing through the valve, the real temperature of the reaction material close to the valve core is measured close to the main sealing ring 5, and the accuracy and controllability of the temperature are improved.

In an embodiment of the present invention, as shown in fig. 2 and 4, the intelligent dome valve for pneumatic conveying of the present invention further comprises a lower temperature sensor 13, the lower temperature sensor 13 is disposed at the bottom of the circumferential sidewall of the lower valve body 1, and the temperature measuring end of the lower temperature sensor 13 protrudes into the cavity of the lower valve body 1.

Specifically, as shown in fig. 2 and 4, the lower temperature sensor 13 is disposed in a return stroke area of an inner arm of the valve core 4, and a temperature measuring end of the lower temperature sensor 13 is disposed as an elastic cantilever, and the inner arm can touch the temperature measuring end.

Specifically, as shown in fig. 4, a wiping rock wool panel 14 is attached to the contact side of the inner arm via a pressing plate, and the wiping rock wool panel 14 can wipe and clean the temperature measuring end during the return stroke.

The lower temperature sensor 13 is arranged at the bottom of the circumferential side wall of the lower valve body 1, so that the temperature in the cavity of the lower valve body 1 can be monitored, and the influence caused by overheating of the bottom is avoided; the temperature measuring end of the lower temperature sensor 13 is an elastic cantilever, the inner support arm can touch the temperature measuring end, and when the inner support arm can touch the temperature measuring end, the vibrating temperature measuring end timely removes dust attached to the vibrating temperature measuring end, so that the influence of measurement errors on the real temperature is avoided; through the arrangement of the wiping rock wool plate 14, the temperature measuring end can be wiped and dedusted during the return stroke of the inner support arm in the process of opening the valve core, so that the accuracy of temperature measurement is ensured.

In an embodiment of the present invention, the controller 12 is provided with a wireless communication module therein, and communicates with the industrial control upper computer through the wireless communication module.

Through the arrangement of the line communication module, the intelligent dome valve for pneumatic transmission is conveniently integrated into an intelligent control system of a factory for unified management, the operation condition of the valve is observed in real time, a report is recorded, and the management level is improved.

According to the intelligent dome valve for pneumatic conveying, the temperature of the intelligent dome valve for pneumatic conveying close to a material channel is monitored by setting the control parameters of the controller 12, and emergency opening action is adopted when overheating occurs, so that damage to a sealing ring caused by overheated powder is avoided; the inflation pressure of the inflation groove 301 is monitored through the air pressure sensor 10, so that the faults of under-pressure closing or pressure maintaining opening are avoided, and the sealing element is protected; through the arrangement of the two proximity switches 11, whether the action of the swing arm 701 is in place or not can be detected, and faults caused by the fact that the swing arm is closed or opened not in place are avoided. When a fault occurs, the alarm module of the controller 12 sends out an audible and visual alarm to show the attention of operation and maintenance personnel, find out the fault in time and process the fault, and avoid the loss expansion. The intelligent dome valve for pneumatic transmission can monitor various parameters of the dome valve, send out early warning in advance and avoid great equipment loss. In addition, the sensor mounting hole 303 is formed in the upper valve cover plate 3, so that the measuring point of the upper temperature sensor is closest to the material passing through the valve, the temperature of the real reaction material close to the valve core is measured close to the main sealing ring 5, and the accuracy and controllability of the temperature are improved. The lower temperature sensor 13 is arranged at the bottom of the circumferential side wall of the lower valve body 1, so that the temperature in the cavity of the lower valve body 1 can be monitored, and the influence caused by overheating of the bottom is avoided; the temperature measuring end of the lower temperature sensor 13 is an elastic cantilever, the inner support arm can touch the temperature measuring end, and when the inner support arm can touch the temperature measuring end, the vibrating temperature measuring end timely removes dust attached to the vibrating temperature measuring end, so that the influence of measurement errors on the real temperature is avoided; through the arrangement of the wiping rock wool plate 14, the temperature measuring end can be wiped and dedusted during the return stroke of the inner support arm in the process of opening the valve core, so that the accuracy of temperature measurement is ensured. Through the arrangement of the line communication module, the intelligent dome valve for pneumatic transmission is conveniently integrated into an intelligent control system of a factory for unified management, the operation condition of the valve is observed in real time, a report is recorded, and the management level is improved.

The embodiments in the present description are described in a progressive manner, each embodiment focuses on differences from other embodiments, and the same and similar parts among the embodiments are referred to each other. The device disclosed by the embodiment corresponds to the method disclosed by the embodiment, so that the description is simple, and the relevant points can be referred to the method part for description.

The above-described embodiments are merely illustrative of the preferred embodiments of the present invention, and do not limit the scope of the present invention, and various modifications and improvements of the technical solution of the present invention can be made by those skilled in the art without departing from the spirit of the present invention, and the scope of the present invention is defined by the claims.

Claims

1. An intelligent dome valve for pneumatic conveying comprises a lower valve body (1), a middle valve base plate (2), an upper valve cover plate (3), a valve core (4), a main sealing ring (5), an air cylinder (6), a rotating shaft (7) and an air cylinder mounting cover (8), and is characterized by further comprising an air pressure sensor (10), a proximity switch (11), an upper temperature sensor and a controller (12), wherein the air pressure sensor (10) is arranged on the outer wall of the air cylinder mounting cover (8) and communicated to an air pipe branch of an inflation interface (302), and the inflation interface (302) is communicated to an inflation groove (301) behind the main sealing ring (5); the two proximity switches (11) are arranged on the outer wall of the cylinder mounting cover (8) and can respectively detect the positions of the extending end of the rotating shaft (7) for driving the swing arm (701) to open and close the valve; the upper temperature sensor is arranged in a sensor mounting hole (303), and the inner end of the sensor mounting hole (303) faces to the arc top of the valve core (4); the controller (12) is arranged on the outer wall of the cylinder mounting cover (8) and has an alarming function, and the air pressure sensor (10), the proximity switch (11) and the upper temperature sensor are all electrically connected to the controller (12).

2. The intelligent dome valve for pneumatic conveying of claim 1, wherein: the sensor mounting hole (303) is formed in the upper valve cover plate (3), the sensor mounting hole (303) is a blind hole, and the opening end of the sensor mounting hole is formed in the outer circle side wall of the upper valve cover plate (3).

3. The intelligent dome valve for pneumatic conveying of claim 2, wherein: the distance between the bottom surface of the sensor mounting hole (303) and the inner hole wall of the upper valve cover plate (3) is 2-5 mm.

4. The intelligent dome valve for pneumatic conveying of claim 1, wherein: the temperature measuring valve is characterized by further comprising a lower temperature sensor (13), wherein the lower temperature sensor (13) is arranged at the bottom of the circumferential side wall of the lower valve body (1), and the temperature measuring end of the lower temperature sensor (13) stretches into the cavity of the lower valve body (1).

5. The intelligent dome valve for pneumatic conveying of claim 4, wherein: the lower temperature sensor (13) is arranged in a return stroke area of an inner support arm of the valve core (4), a temperature measuring end of the lower temperature sensor (13) is arranged as an elastic cantilever, and the inner support arm can touch the temperature measuring end.

6. The intelligent dome valve for pneumatic conveying of claim 5, wherein: the touching side of interior support arm is installed through the clamp plate and is cleaned rock wool board (14), it can be right when the return stroke to clean rock wool board (14) the clearance is cleaned to the temperature measurement end.

7. The intelligent dome valve for pneumatic conveying of claim 1, wherein: and a wireless communication module is arranged in the controller (12) and is communicated with the industrial control upper computer through the wireless communication module.