CN213575870U

CN213575870U - Pressure reducing valve with alarm structure

Info

Publication number: CN213575870U
Application number: CN202022511793.7U
Authority: CN
Inventors: 尹振岭
Original assignee: Qingdao Mufan Machinery Co ltd
Current assignee: Qingdao Mufan Machinery Co ltd
Priority date: 2020-10-26
Filing date: 2020-10-26
Publication date: 2021-06-29
Anticipated expiration: 2030-10-26

Abstract

The utility model discloses a relief valve with alarm structure, including relief pressure valve body and threaded rod, fixedly connected with flange on the relief pressure valve body, the one end top of relief pressure valve body inlays and is equipped with first a pair of takeover, the one end fixedly connected with pipe of first a pair of takeover, one side of seal box inlays and is equipped with the sleeve, fixedly connected with seal cover in the sleeve, the inside recess of seting up of seal cover, fixedly connected with slide rail in the recess, the block is connected with the slider in the slide rail, the inboard fixedly connected with internal thread board of slider, threaded rod threaded connection is in the internal thread board, one side fixedly connected with controller of pressure transmitter. This relief valve with alarm structure sets up when relief valve body inside pressure changes too big, and pressure transmitter conducts the receiver with the signal, and the receiver conducts the signal to the controller, and the controller control alarm twinkles and buzzes to warn operating personnel.

Description

Pressure reducing valve with alarm structure

Technical Field

The utility model relates to a relief pressure valve technical field specifically is a relief pressure valve with alarm structure.

Background

The pressure reducing valve is a valve which reduces the inlet pressure to a certain required outlet pressure through regulation and leads the outlet pressure to be automatically kept stable by relying on the energy of the medium. From the viewpoint of hydrodynamics, the pressure reducing valve is a throttling element with variable local resistance, namely, the flow speed and the kinetic energy of fluid are changed by changing the throttling area to cause different pressure losses, thereby achieving the purpose of pressure reduction. Then, the fluctuation of the pressure behind the valve is balanced with the spring force by means of the regulation of the control and regulation system, so that the pressure behind the valve is kept constant within a certain error range.

However, the pressure reducing valve used at present cannot give an alarm in time when the pressure range fluctuates greatly, resulting in poor safety.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a relief pressure valve with alarm structure to solve the relief pressure valve that uses on the existing market that above-mentioned background art provided and when meetting the undulant great condition of pressure range, can't in time report to the police, lead to the relatively poor problem of security.

In order to achieve the above object, the utility model provides a following technical scheme: a pressure reducing valve with an alarm structure comprises a pressure reducing valve body and a threaded rod, wherein a butt flange is fixedly connected to the pressure reducing valve body, an L-shaped pipe is fixedly connected to the butt flange, one end of the L-shaped pipe is fixedly connected with a pressure transmitter, a receiver is fixedly connected to one side of the pressure transmitter, and an alarm is fixedly connected to the lower portion of the receiver;

the one end top of relief pressure valve body inlays and is equipped with first butt joint pipe, the one end fixedly connected with pipe of first butt joint pipe, the one end fixedly connected with second butt joint pipe of pipe, the one end of second butt joint pipe inlays and establishes in the seal box, the top fixedly connected with manometer of seal box, one side of seal box inlays and is equipped with the sleeve, the through-hole has been seted up on the sleeve, fixedly connected with seal cover in the sleeve, the inside recess of seting up of seal cover, fixedly connected with slide rail in the recess, the joint is connected with the slider in the slide rail, the inboard fixedly connected with internal thread board of slider, threaded rod threaded connection is in the internal thread board, one side fixedly connected with controller of pressure transmitter.

Preferably, the pressure transmitter is electrically connected with the receiver, the receiver is electrically connected with the controller, and the controller is electrically connected with the alarm.

Preferably, the first butt joint pipe, the guide pipe, the second butt joint pipe and the pressure gauge are symmetrically arranged on the pressure reducing valve body in two groups, and the guide pipe is made of metal.

Preferably, the through holes are arranged on the sleeve in ten groups in an annular array, the depth of each through hole is equal to the sum of the thicknesses between the sleeve and the sealing sleeve, and the height of the lowest end of each through hole is equal to the height of the center line of the sleeve.

Preferably, four groups of grooves, sliding rails and sliding blocks are arranged between the sealing sleeve and the internal thread plate in an annular array, and the four groups of grooves, sliding rails and sliding blocks form a limiting structure.

Preferably, the threaded rod is equal to the sleeve, the sealing sleeve, the groove and the sliding rail in height, and the inner diameter of the sealing sleeve is equal to the outer diameter of the internal thread plate.

Compared with the prior art, the beneficial effects of the utility model are that: this relief valve with alarm structure:

1. the pressure transmitter is a device for converting pressure into an electric signal for control and remote transmission, and can convert physical pressure parameters of gas, liquid and the like sensed by a pressure measuring element sensor into standard electric signals;

2. the pressure relief valve is provided with a sleeve, a through hole, a sealing sleeve, an internal thread plate and a threaded rod, if the internal pressure is too high, the threaded rod is rotated, and the internal thread plate cannot rotate along with the rotation of the threaded rod due to the existence of a sliding rail and a sliding block, so that the threaded rod drives the internal thread plate to move upwards while rotating, and the internal thread plate moves to the upper part of the through hole, thereby forming a passage and relieving the pressure in the pressure relief valve body;

3. be provided with seal cover, recess, slide rail and slider, and seal cover inside diameter equals with internal thread board outside diameter, improves the leakproofness, prevents that relief pressure valve body when the usual use internal pressure from revealing, and recess, slide rail and slider are the annular array between seal cover and internal thread board and are provided with four groups, can enough restrict internal thread board, increase the stability of internal thread board when reciprocating simultaneously.

Drawings

FIG. 1 is a schematic structural view of the present invention;

FIG. 2 is a schematic view of the L-shaped tube structure of the present invention;

fig. 3 is a schematic view of the sleeve structure of the present invention.

In the figure: 1. a pressure reducing valve body; 2. butting flanges; 3. an L-shaped tube; 4. a pressure transmitter; 5. a receiver; 6. an alarm; 7. a first docking pipe; 8. a conduit; 9. a second pair of adapter tubes; 10. a sealing box; 11. a pressure gauge; 12. a sleeve; 13. a through hole; 14. sealing sleeves; 15. a groove; 16. a slide rail; 17. a slider; 18. an internally threaded plate; 19. a threaded rod; 20. and a controller.

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.

Referring to fig. 1-3, the present invention provides a technical solution: a pressure reducing valve with an alarm structure comprises a pressure reducing valve body 1, a butt flange 2, an L-shaped pipe 3, a pressure transmitter 4, a receiver 5, an alarm 6, a first butt pipe 7, a guide pipe 8, a second butt pipe 9, a seal box 10, a pressure gauge 11, a sleeve 12, a through hole 13, a seal sleeve 14, a groove 15, a slide rail 16, a slide block 17, an internal thread plate 18, a threaded rod 19 and a controller 20, wherein the butt flange 2 is fixedly connected to the pressure reducing valve body 1, the L-shaped pipe 3 is fixedly connected to the butt flange 2, one end of the L-shaped pipe 3 is fixedly connected to the pressure transmitter 4, a receiver 5 is fixedly connected to one side of the pressure transmitter 4, and the alarm 6 is fixedly connected to the lower portion of the;

a first butt joint pipe 7 is embedded above one end of the pressure reducing valve body 1, one end of the first butt joint pipe 7 is fixedly connected with a guide pipe 8, one end of the guide pipe 8 is fixedly connected with a second butt joint pipe 9, one end of the second butt joint pipe 9 is embedded in a sealing box 10, a pressure gauge 11 is fixedly connected above the sealing box 10, two groups of the first butt joint pipe 7, the guide pipe 8, the second butt joint pipe 9 and the pressure gauge 11 are symmetrically arranged on the pressure reducing valve body 1, the guide pipe 8 is made of metal to prevent the guide pipe 8 from deforming, a sleeve 12 is embedded on one side of the sealing box 10, a through hole 13 is formed in the sleeve 12, ten groups of the through holes 13 are arranged on the sleeve 12 in an annular array, the depth of the through hole 13 is equal to the sum of the thicknesses between the sleeve 12 and the sealing sleeve 14, and the height of the lowest end of the through, the sleeve 12 can be sealed, a sealing sleeve 14 is fixedly connected in the sleeve 12, a threaded rod 19 is equal to the height of the sleeve 12, the height of the sealing sleeve 14, the height of a groove 15 and the height of a sliding rail 16 are equal, the inner diameter of the sealing sleeve 14 is equal to the outer diameter of an internal thread plate 18, the sealing performance is improved, the groove 15 is formed in the sealing sleeve 14, the sliding rail 16 is fixedly connected in the groove 15, a sliding block 17 is connected in the sliding rail 16 in a clamping manner, four groups of the groove 15, the sliding rail 16 and the sliding block 17 are arranged between the sealing sleeve 14 and the internal thread plate 18 in an annular array, the four groups of the groove 15, the sliding rail 16 and the sliding block 17 form a limiting structure to prevent the internal thread plate 18 from rotating along with the rotation of the threaded rod 19, the internal thread plate 18 is fixedly connected on the inner side of the sliding block 17, pressure transmitter 4 and receiver 5 electric connection, and receiver 5 and controller 20 electric connection to controller 20 and alarm 6 electric connection make controller 20 can filter the signal and control alarm 6's work.

The working principle is as follows: when the pressure reducing valve with the alarm structure is used, the device is simply known, firstly, a proper pressure transmitter 4 is selected, the pressure transmitter 4 is a device for converting pressure into an electric signal for control and remote transmission, the device can convert physical pressure parameters of gas, liquid and the like sensed by a load cell sensor into a standard electric signal, when the pressure change in the pressure reducing valve body 1 is overlarge, the pressure transmitter 4 transmits the signal to a receiver 5, the receiver 5 transmits the signal to a controller 20, the controller 20 controls the alarm 6 to flash and sound so as to warn an operator, when the pressure in the pressure reducing valve body 1 is in a normal pressure range, the receiver 5 transmits the signal to the controller 20, the controller 20 does not start the alarm 6, and meanwhile, the pressure in the pressure reducing valve body 1 is kept consistent with the pressure in a sealing box 10 through a first butt joint pipe 7, a guide pipe 8 and a second butt joint pipe 9, therefore, the pressure gauge 11 can measure the internal pressure of the pressure reducing valve body 1, the internal pressure of the pressure reducing valve body 1 is monitored through two different systems, if the internal pressure is too high, the threaded rod 19 is rotated, and due to the existence of the sliding rail 16 and the sliding block 17, the internal thread plate 18 cannot rotate along with the rotation of the threaded rod 19, so that the threaded rod 19 drives the internal thread plate 18 to move upwards while rotating, the internal thread plate 18 moves to the upper part of the through hole 13, a passage is formed, and the pressure is relieved in the pressure reducing valve body 1.

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 may be made to the embodiments or portions thereof without departing from the spirit and scope of the invention.

Claims

1. The utility model provides a relief valve with alarm structure, includes relief valve body (1) and threaded rod (19), its characterized in that: a butt flange (2) is fixedly connected to the pressure reducing valve body (1), an L-shaped pipe (3) is fixedly connected to the butt flange (2), a pressure transmitter (4) is fixedly connected to one end of the L-shaped pipe (3), a receiver (5) is fixedly connected to one side of the pressure transmitter (4), and an alarm (6) is fixedly connected to the lower portion of the receiver (5);

the pressure reducing valve is characterized in that a first butt joint pipe (7) is embedded above one end of the pressure reducing valve body (1), a guide pipe (8) is fixedly connected to one end of the first butt joint pipe (7), a second butt joint pipe (9) is fixedly connected to one end of the guide pipe (8), one end of the second butt joint pipe (9) is embedded in a sealing box (10), a pressure gauge (11) is fixedly connected to the upper portion of the sealing box (10), a sleeve (12) is embedded in one side of the sealing box (10), a through hole (13) is formed in the sleeve (12), a sealing sleeve (14) is fixedly connected in the sleeve (12), a groove (15) is formed in the sealing sleeve (14), a sliding rail (16) is fixedly connected in the groove (15), a sliding block (17) is connected in the sliding rail (16) in a clamping manner, and an inner threaded plate (18) is fixedly, the threaded rod (19) is in threaded connection with the inner threaded plate (18), and a controller (20) is fixedly connected to one side of the pressure transmitter (4).

2. A pressure reducing valve having an alarm structure according to claim 1, wherein: the pressure transmitter (4) is electrically connected with the receiver (5), the receiver (5) is electrically connected with the controller (20), and the controller (20) is electrically connected with the alarm (6).

3. A pressure reducing valve having an alarm structure according to claim 1, wherein: the first butt joint pipe (7), the guide pipe (8), the second butt joint pipe (9) and the pressure gauge (11) are symmetrically arranged in two groups on the pressure reducing valve body (1), and the guide pipe (8) is made of metal.

4. A pressure reducing valve having an alarm structure according to claim 1, wherein: the sleeve (12) is provided with ten groups of through holes (13) in an annular array, the depth of each through hole (13) is equal to the sum of the thicknesses of the sleeve (12) and the sealing sleeve (14), and the height of the lowest end of each through hole (13) is equal to the height of the center line of the sleeve (12).

5. A pressure reducing valve having an alarm structure according to claim 1, wherein: the four groups of grooves (15), the four groups of sliding rails (16) and the four groups of sliding blocks (17) are arranged between the sealing sleeve (14) and the inner thread plate (18) in an annular array, and the four groups of grooves (15), the four groups of sliding rails (16) and the four groups of sliding blocks (17) form a limiting structure.

6. A pressure reducing valve having an alarm structure according to claim 1, wherein: the threaded rod (19) is equal to the sleeve (12), the sealing sleeve (14), the groove (15) and the sliding rail (16) in height, and the inner diameter of the sealing sleeve (14) is equal to the outer diameter of the inner thread plate (18).