CN214334113U

CN214334113U - Explosion-proof differential pressure transmitter for high-pressure gasifier

Info

Publication number: CN214334113U
Application number: CN202120213402.5U
Authority: CN
Inventors: 邱德梅
Original assignee: Yidong Shenzhen Sensor Co ltd
Current assignee: Yidong Shenzhen Sensor Co ltd
Priority date: 2021-01-26
Filing date: 2021-01-26
Publication date: 2021-10-01
Anticipated expiration: 2031-01-26

Abstract

The utility model discloses an explosion-proof differential pressure transmitter for a high-pressure gasifier, which comprises a high-pressure gasifier body and a safety device arranged on the high-pressure gasifier body, wherein the side wall of the safety device is connected with an air pressure valve body through a connecting pipe, and the top of the air pressure valve body is provided with a sealing component; the pneumatic valve comprises a pneumatic valve body and is characterized in that three piston blocks are connected to the inner side wall of the pneumatic valve body in a sliding mode, and a reset mechanism is connected to the upper surfaces of the piston blocks. The utility model discloses, through mutually supporting between safety device, the atmospheric pressure valve body, canceling release mechanical system, the piston piece, the air duct, alarm mechanism and the fender gas board, when pressure is too big, the piston piece that gaseous entering atmospheric pressure valve is internal and promote the below in proper order removes, along with the removal of piston piece, gaseous finally through air duct, discharge entering alarm in, the alarm begins alarm work, reminds the staff in time to look over unusually, avoid equipment to move under the high-pressure condition for a long time and influence its life, reduce the potential safety hazard.

Description

Explosion-proof differential pressure transmitter for high-pressure gasifier

Technical Field

The utility model relates to a high pressure vaporizer technical field especially relates to an explosion-proof differential pressure transmitter for high pressure vaporizer.

Background

The vaporizer is a device for heating the liquid gas in the vaporizer until the gas is vaporized, and in short, the ice-cold liquid gas is changed into a gaseous gas after passing through the "introduction vaporizer". The heating may be indirect, such as steam heated gasifiers, hot water bath gasifiers, natural draft air bath gasifiers, forced draft gasifiers, electrically heated gasifiers, solid heat conducting gasifiers, or heat transfer fluids, etc., or direct, such as hot gas or submerged combustion.

The present differential pressure transmitter applied to gas equipment or pipelines can only realize opening the valve to discharge gas outwards when internal pressure is too big usually, when internal pressure lasts too big, the relief valve can last outside discharge gas, though production safety has been guaranteed to a certain extent, but because gas lasts outside discharge, lead to the staff probably can't detect the gasifier condition that pressure is too big in time, and equipment lasts long-term operation under the too big condition of pressure, easily reduce the life of equipment, still there is production potential safety hazard simultaneously, for this reason, we have designed a high pressure gasifier and have solved above-mentioned problem with explosion-proof differential pressure transmitter.

SUMMERY OF THE UTILITY MODEL

The utility model aims at solving the defects existing in the prior art, and providing an explosion-proof differential pressure transmitter for a high-pressure gasifier.

In order to achieve the above purpose, the utility model adopts the following technical scheme: an explosion-proof differential pressure transmitter for a high-pressure gasifier comprises a high-pressure gasifier body and a safety device arranged on the high-pressure gasifier body, wherein the side wall of the safety device is connected with an air pressure valve body through a connecting pipe, and the top of the air pressure valve body is provided with a sealing assembly; the inner side wall of the air pressure valve body is connected with three piston blocks in a sliding manner, the upper surfaces of the piston blocks are connected with a resetting mechanism, and the resetting mechanism positioned at the top is connected with the sealing assembly; the outer side wall of the air pressure valve body is penetrated and fixedly connected with three air guide pipes, the three air guide pipes and the three piston blocks are arranged in a vertically staggered mode, and one side, away from the air pressure valve body, of each air guide pipe is connected with the same alarm assembly; the pneumatic valve comprises a pneumatic valve body and is characterized in that an air guide cavity is formed in the inner side wall of the pneumatic valve body, an air inlet is formed in the inner side wall of the bottom of the air guide cavity, three air outlets are formed in the inner side wall of the air guide cavity and are respectively located above three piston blocks in an inclined mode, an air baffle plate which is in contact with the outer side of each air outlet is fixedly connected to the upper surface of each piston block, and a plurality of air outlet holes are formed in the outer side wall of the air baffle plate.

As a further description of the above technical solution:

the sealing assembly comprises a sealing plate inserted on the inner side of the top of the air pressure valve body, the top of the sealing plate is fixedly connected with a cover plate with an inverted L-shaped cross section, and the vertical end of the cover plate is arranged downwards.

As a further description of the above technical solution:

the resetting mechanism comprises a resetting spring, the upper end and the lower end of the resetting spring are fixedly connected with mounting blocks, and slots matched with the mounting blocks are correspondingly formed in the upper side and the lower side of the piston block.

As a further description of the above technical solution:

the outer side wall of the mounting block positioned at the top is inserted with a connecting block, and the top of the connecting block is fixedly connected with the lower surface of the sealing plate.

As a further description of the above technical solution:

the alarm assembly comprises an alarm, the outer side wall of the alarm is connected with a gas collecting pipe through a gas inlet pipe, one end, far away from the gas inlet pipe, of the gas collecting pipe is connected with three gas guide pipes, and the side walls of the gas guide pipes are connected with one-way valves.

As a further description of the above technical solution:

the air inlet is positioned at the bottommost part of the piston block obliquely below.

The utility model discloses following beneficial effect has:

1. compared with the prior art, this explosion-proof differential pressure transmitter for high pressure vaporizer, through the safety device, the atmospheric pressure valve body, canceling release mechanical system, the piston piece, the air duct, mutually support between alarm mechanism and the gas baffle, when pressure is too big, gaseous piston piece that gets into in the atmospheric pressure valve body and promote the below in proper order removes, along with the removal of piston piece, gaseous finally gets into in the alarm through the air duct, the discharge, the alarm begins alarm work, remind the staff in time to look over unusually, avoid equipment to move under the high pressure condition for a long time and influence its life, reduce the potential safety hazard.

2. Compared with the prior art, this explosion-proof differential pressure transmitter for high pressure vaporizer through the mutual cooperation between reset spring, installation piece, connecting block, closing plate and the apron, after equipment operation, can regularly take off apron and closing plate, after taking off the whole back of atmospheric pressure valve body, can maintain the change to elements such as inside reset spring, piston piece, avoid reducing the holistic sensitivity of device because of the use loss.

Drawings

Fig. 1 is a schematic structural view of an explosion-proof differential pressure transmitter for a high-pressure gasifier according to the present invention;

FIG. 2 is a cross-sectional view of the air pressure valve body in the anti-explosion differential pressure transmitter for the high pressure gasifier;

FIG. 3 is an enlarged view taken at A in FIG. 2;

fig. 4 is the utility model provides a connecting structure sketch map of reset spring and piston block among the explosion-proof differential pressure transmitter for high pressure gasifier.

Illustration of the drawings:

1. a high pressure gasifier body; 2. a safety device; 3. a connecting pipe; 4. a pneumatic valve body; 5. a piston block; 6. an air duct; 7. a gas conducting cavity; 8. an air inlet; 9. an air outlet; 10. a gas baffle; 11. an air outlet; 12. a sealing plate; 13. a cover plate; 14. a return spring; 15. mounting blocks; 16. a slot; 17. connecting blocks; 18. an alarm; 19. an air inlet pipe; 20. a gas collecting pipe; 21. a one-way valve.

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.

In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplification of description, but do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention; the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance, and furthermore, unless otherwise explicitly stated or limited, the terms "mounted," "connected," and "connected" are to be construed broadly and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.

Referring to fig. 1-4, the utility model provides a pair of explosion-proof differential pressure transmitter for high pressure vaporizer: the safety device comprises a high-pressure gasifier body 1 and a safety device 2 arranged on the high-pressure gasifier body 1, wherein the side wall of the safety device 2 is connected with an air pressure valve body 4 through a connecting pipe 3, and a sealing assembly is arranged at the top of the air pressure valve body 4; the sealing assembly comprises a sealing plate 12 inserted on the inner side of the top of the air pressure valve body 4, the top of the sealing plate 12 is fixedly connected with a cover plate 13 with an inverted L-shaped cross section, and the vertical end of the cover plate 13 is arranged downwards, so that the sealing plate 12 and the cover plate 13 can be integrally taken down, and the piston block 5 in the air pressure valve body 4 can be taken out for maintenance.

Wherein, 4 inside wall sliding connection of air pressure valve body has three

piston piece

5, 5 surface connection of piston piece has canceling release mechanical system, canceling release mechanical system includes reset spring 14, the equal fixedly connected with installation piece 15 in both ends about reset spring 14, both sides correspond about piston piece 5 set up with the slot 16 of installation piece 15 looks adaptation, the canceling release mechanical system that is located the top is connected with seal assembly, the 15 lateral wall of installation piece that is located the top is inserted and is equipped with connecting block 17, connecting block 17 top and closing plate 12 fixed surface are connected, the mode installation of establishing is inserted in reset spring 14 both ends adoption promptly, can wholly take off installation piece 15 and reset spring 14, so that more new reset spring 14 when needs.

The outer side wall of the air pressure valve body 4 is penetrated and fixedly connected with three air guide pipes 6, the three air guide pipes 6 and the three piston blocks 5 are arranged in a vertically staggered mode, and one side, far away from the air pressure valve body 4, of each air guide pipe 6 is connected with the same alarm assembly; the alarm assembly comprises an alarm 18, the outer side wall of the alarm 18 is connected with a gas collecting pipe 20 through a gas inlet pipe 19, the gas collecting pipe 20 is far away from one end of the gas inlet pipe 19 and connected with three gas guide pipes 6, the side wall of each gas guide pipe 6 is connected with a one-way valve 21, the one-way valves 21 and the alarm 18 are standard parts in the prior art, and the one-way valves 21 are used for avoiding reverse backflow of gas through the gas collecting pipe 20.

An air guide cavity 7 is formed in the inner side wall of the air pressure valve body 4, an air inlet 8 is formed in the inner side wall of the bottom of the air guide cavity 7, the air inlet 8 is located below the bottommost piston block 5 in an inclined manner, three air outlets 9 are formed in the inner side wall of the air guide cavity 7, the three air outlets 9 are respectively located above the three piston blocks 5 in an inclined manner, an air baffle plate 10 which is in contact with the outer sides of the air outlets 9 is fixedly connected to the upper surface of the piston block 5, a plurality of air outlets 11 are formed in the outer side wall of the air baffle plate 10, wherein the air outlets 11 on the air baffle plate 10 are sequentially raised from top to bottom, that is, the distance between the air outlet 11 of the air baffle plate 10 at the top and the piston block 5 is smaller than the distance between the air outlet 11 of the air baffle plate 10 at the bottom and the corresponding piston block 5, the upward movement of the piston block 5 means that the air pressure is larger, therefore, more gas can enter the gas collecting pipe 20 conveniently, the alarm 18 is aggravated in the alarm condition, and the worker can know the condition of overlarge gas pressure timely.

The working principle is as follows: after all the components are connected, in the initial state, the bottom one-way valve 21 is in the open state, the other one-way valves 21 are in the closed state, when the internal air pressure of the high-pressure gasifier body 1 exceeds the normal air pressure, the air enters the air pressure valve body 4, part of the air enters the air guide cavity 7 through the air inlet 8, simultaneously along with the increase of the air, the air pressure at the bottom of the air pressure valve body 4 is increased and pushes the piston block 5 at the bottom to move upwards, the piston block 5 starts to extrude the return spring 14 corresponding to the upper part, simultaneously, the piston block 5 drives the corresponding air baffle plate 10 to move upwards, when the position of the air outlet 11 on the air baffle plate 10 at the bottom does not correspond to the air outlet 9 at the bottom, the increased pressure is still in the controllable range, when the position of the air outlet 11 on the air baffle plate 10 at the bottom corresponds to the air outlet 9 at the bottom, the air starts to enter between the two piston blocks 5 and starts to flow along the air guide tube 6, The gas manifold 20 enters the alarm 18 and the alarm 18 begins to sound an alarm indicating an abnormal pressure within the device that requires attention.

At the moment, the check valve 21 in the middle can be opened, the air baffle plate 10 is started to push the middle piston block 5 to move along with the continuous rising of the bottom piston block 5, air starts to enter between the two piston blocks 5 above and enters the alarm 18 through the middle air duct 6, so that the alarm 18 continuously gives an alarm, similarly, the top check valve 21 can be opened, when the air enters the alarm 18 through the top air duct 6, the pressure is continuously increased, and a corresponding pressure reduction measure needs to be taken.

After the pressure returns to the normal value, each piston block 5 moves downwards and resets under the action of the corresponding return spring 14 so as to continue to monitor the pressure condition of the equipment, and meanwhile, the air pressure valve body 4 can be integrally taken down when needed, the cover plate 13 and the sealing plate 12 are taken out, elements such as the internal return spring 14 and the piston block 5 can be maintained and replaced, and the reduction of the integral sensitivity of the device due to use loss is avoided.

Finally, it should be noted that: although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that modifications and variations can be made in the embodiments or in part of the technical features of the embodiments without departing from the spirit and the scope of the invention.

Claims

1. The utility model provides an explosion-proof differential pressure transmitter for high pressure vaporizer, includes high pressure vaporizer body (1) and sets up safety device (2) on high pressure vaporizer body (1), its characterized in that: the side wall of the safety device (2) is connected with an air pressure valve body (4) through a connecting pipe (3), and a sealing assembly is arranged at the top of the air pressure valve body (4);

the inner side wall of the air pressure valve body (4) is connected with three piston blocks (5) in a sliding mode, the upper surfaces of the piston blocks (5) are connected with a resetting mechanism, and the resetting mechanism located at the top is connected with the sealing assembly;

the outer side wall of the air pressure valve body (4) penetrates through and is fixedly connected with three air guide pipes (6), the three air guide pipes (6) and the three piston blocks (5) are arranged in a vertically staggered mode, and one side, far away from the air pressure valve body (4), of each air guide pipe (6) is connected with the same alarm assembly;

air guide cavity (7) have been seted up to atmospheric pressure valve body (4) inside wall, air inlet (8) have been seted up to air guide cavity (7) bottom inside wall, three gas outlet (9) have been seted up to air guide cavity (7) inside wall, it is three gas outlet (9) are located threely respectively piston piece (5) oblique top, fixed surface is connected with fender gas board (10) with gas outlet (9) outside contact on piston piece (5), a plurality of ventholes (11) have been seted up to fender gas board (10) lateral wall.

2. The explosion-proof differential pressure transmitter for the high-pressure gasifier of claim 1, wherein: the sealing assembly comprises a sealing plate (12) inserted on the inner side of the top of the air pressure valve body (4), the top of the sealing plate (12) is fixedly connected with a cover plate (13) with an inverted L-shaped cross section, and the vertical end of the cover plate (13) is arranged downwards.

3. The explosion-proof differential pressure transmitter for the high-pressure gasifier of claim 2, wherein: the resetting mechanism comprises a resetting spring (14), mounting blocks (15) are fixedly connected to the upper end and the lower end of the resetting spring (14), and slots (16) matched with the mounting blocks (15) are correspondingly formed in the upper side and the lower side of the piston block (5).

4. The explosion-proof differential pressure transmitter for the high-pressure gasifier of claim 3, wherein: the outer side wall of the mounting block (15) positioned at the top is inserted with a connecting block (17), and the top of the connecting block (17) is fixedly connected with the lower surface of the sealing plate (12).

5. The explosion-proof differential pressure transmitter for the high-pressure gasifier of claim 1, wherein: the alarm assembly comprises an alarm (18), the outer side wall of the alarm (18) is connected with a gas collecting pipe (20) through a gas inlet pipe (19), one end of the gas collecting pipe (20) far away from the gas inlet pipe (19) is connected with three gas guide pipes (6), and the side wall of each gas guide pipe (6) is connected with a one-way valve (21).

6. The explosion-proof differential pressure transmitter for the high-pressure gasifier of claim 1, wherein: the air inlet (8) is positioned at the bottommost part of the piston block (5) obliquely below.