CN211203010U

CN211203010U - High-temperature high-pressure spring type safety valve

Info

Publication number: CN211203010U
Application number: CN201921559287.6U
Authority: CN
Inventors: 包鑫发
Original assignee: Shanghai Meilong Valve Co ltd
Current assignee: Shanghai Meilong Valve Co ltd
Priority date: 2019-09-19
Filing date: 2019-09-19
Publication date: 2020-08-07
Anticipated expiration: 2029-09-19

Abstract

The utility model discloses a high temperature high pressure spring formula relief valve, which comprises a valve body, the valve body outside is equipped with the metal covering, and the equal spiro union in metal covering lateral wall top and bottom position department has the liquid joint, valve body bottom and lateral wall are equipped with feed liquor pipe and drain pipe respectively, and feed liquor pipe and drain pipe all pass the metal covering lateral wall, valve body bottom inner wall is equipped with the passage of intercommunication feed liquor pipe, it has the valve rod to peg graft on the valve body top, the valve rod bottom is equipped with the sprue, the sprue is inserted and is established in the passage, and is equipped with the sealed bulge loop with sprue looks adaptation in the passage, the passage lateral wall is close to sealed bulge loop top position department and opens the through-hole that has the equidistance to be the annular and distributes. The utility model discloses conveniently adjust the trigger pressure of relief valve, it is convenient to adjust, easy operation combines the annular net piece that sets up simultaneously, can filter the material, riches the relief valve function, reduces the probability that the relief valve blockked up.

Description

High-temperature high-pressure spring type safety valve

Technical Field

The utility model relates to a relief valve technical field especially relates to a high temperature high pressure spring formula relief valve.

Background

The safety valve is a special valve, wherein the opening and closing part is in a normally closed state under the action of external force, and when the pressure of a medium in equipment or a pipeline rises to exceed a specified value, the medium is discharged to the outside of the system to prevent the pressure of the medium in the pipeline or the equipment from exceeding the specified value. The safety valve is mainly used for boiler, pressure container and pipeline, and its control pressure is not greater than specified value, so that it can play important role in protecting personal safety and equipment operation.

SUMMERY OF THE UTILITY MODEL

The utility model aims at solving the defects existing in the prior art and providing a high-temperature high-pressure spring type safety valve.

In order to achieve the above purpose, the utility model adopts the following technical scheme:

a high-temperature high-pressure spring type safety valve comprises a valve body, wherein a metal sleeve is arranged on the outer side of the valve body, liquid connectors are respectively screwed at the top end and the bottom end of the side wall of the metal sleeve, a liquid inlet pipe and a liquid outlet pipe are respectively arranged at the bottom end and the side wall of the valve body, the liquid inlet pipe and the liquid outlet pipe penetrate through the side wall of the metal sleeve, a guide cylinder communicated with the liquid inlet pipe is arranged on the inner wall of the bottom end of the valve body, a valve rod is inserted at the top end of the valve body, a blocking block is arranged at the bottom end of the valve rod and is inserted in the guide cylinder, a sealing convex ring matched with the blocking block is arranged in the guide cylinder, through holes which are distributed in an annular shape at equal intervals are formed in the position, close to the top end of the through hole, of the side wall of the guide cylinder, an annular net piece is sleeved, the valve rod passes the adjusting sleeve, valve rod outer wall cover is equipped with first spring part, and the valve rod lateral wall is close to first spring part bottom position department and is equipped with spacing bulge loop, protective sheath inner wall is equipped with the becket bridle, and first spring part top and becket bridle butt, peg graft and have the second spring part first spring part inner wall, and the second spring part cup joints with the valve rod, second spring part top and adjusting sleeve bottom butt.

Preferably, the flange rings are welded at the end, away from the valve body, of the liquid inlet pipe and the liquid outlet pipe, and the sealing rings are bonded on the side walls of the two flange rings.

Preferably, the top end of the valve rod is provided with a through hole.

Preferably, the outer wall of the bottom end of the plugging block is provided with a screw hole, and the inner wall of the screw hole is in threaded connection with a temperature sensor.

Preferably, the position of the side wall of the valve rod, which is close to the top end of the valve body, is provided with an annular sealing groove, and the inner wall of the annular sealing groove is clamped with a sealing ring.

The utility model has the advantages that:

through the first spring part and the second spring part that set up, combine the adjusting collar that sets up, conveniently adjust the trigger pressure of relief valve, it is convenient to adjust, easy operation combines the annular net piece that sets up simultaneously, can filter the material, richenes the relief valve function, reduces the probability that the relief valve blockked up, combines metal covering, the liquid joint that sets up, convenient and circulation water path connection, conveniently cools down the valve body, promotes the high temperature resistant ability of valve body.

Drawings

Fig. 1 is a schematic structural diagram of a high-temperature and high-pressure spring type safety valve provided by the present invention;

fig. 2 is the utility model provides a sectional structure schematic diagram of high temperature high pressure spring safety valve.

In the figure: the device comprises a flange ring 1, a liquid inlet pipe 2, a valve body 3, a metal sleeve 4, a liquid receiving joint 5, a protective sleeve 6, an adjusting sleeve 7, a valve rod 8, a liquid outlet pipe 9, a material guide cylinder 10, an annular net piece 11, a block piece 12, a temperature sensor 13, a first spring part 14, a metal ring piece 15 and a second spring part 16.

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.

Referring to fig. 1-2, a high temperature and high pressure spring type safety valve comprises a valve body 3, a metal sleeve 4 is arranged on the outer side of the valve body 3, liquid connectors 5 are screwed at the top end and the bottom end of the side wall of the metal sleeve 4, a liquid inlet pipe 2 and a liquid outlet pipe 9 are respectively arranged at the bottom end and the side wall of the valve body 3, the liquid inlet pipe 2 and the liquid outlet pipe 9 penetrate through the side wall of the metal sleeve 4, a material guide cylinder 10 communicated with the liquid inlet pipe 2 is arranged on the inner wall of the bottom end of the valve body 3, a valve rod 8 is inserted at the top end of the valve body 3, a plugging block 12 is arranged at the bottom end of the valve rod 8, the plugging block 12 is inserted in the material guide cylinder 10, a sealing convex ring matched with the plugging block 12 is arranged in the material guide cylinder 10, through holes which are distributed annularly at equal intervals are arranged at the position of the side wall of the material guide cylinder 10 close to the, and 6 top spiro union of protective sheath have adjusting collar 7, valve rod 8 passes adjusting

collar

7, 8 outer wall covers of valve rod are equipped with

first spring part

14, and 8 lateral walls of valve rod are close to 14 bottom positions of first spring part and locate to be equipped with spacing bulge loop, 6 inner walls of protective sheath are equipped with

becket piece

15, and 14 tops of first spring part and 15 butts of becket piece, 14 inner walls of first spring part are pegged graft and are had second spring part 16, and second spring part 16 cup joints with

valve rod

8, 16 tops of second spring part and 7 bottom butts of adjusting collar.

The utility model discloses in, 3 one ends of valve body are kept away from to feed liquor pipe 2 and drain pipe 9 and all welded flange ring 1, and two 1 lateral walls of flange ring all bond there is the sealing washer, and 8 tops of valve rod are equipped with the perforation, and 12 bottom outer walls of sprue are opened there is the screw, and screw inner wall spiro union has

temperature sensor

13, and 8 lateral walls of valve rod are close to 3 top position departments of valve body and open and have the annular seal slot, and annular seal slot inner wall joint has the sealing washer.

The working principle is as follows: during the use, flange ring 1 on through feed liquor pipe 2 and drain pipe 9, with installation valve fixed mounting in suitable pipeline, through rotation regulation cover 7, can carry out the butt with second spring part 16, thereby adjust second spring part 16 to the pressure with valve rod 8, combine the first spring part 14 that sets up, thereby adjust the trigger pressure of relief valve, when pressure is too big, sprue 12 moves up, the material passes the through-hole, filter through annular net piece 11, discharge by drain pipe 9, through the tube coupling of two liquid connectors 5 with the circulative cooling equipment, through the cooling liquid of supply to the metal covering 4 mesocycle, the realization is to the cooling of valve body 3.

The above, only be the concrete implementation of the preferred embodiment of the present invention, but the protection scope of the present invention is not limited thereto, and any person skilled in the art is in the technical scope of the present invention, according to the technical solution of the present invention and the utility model, the concept of which is equivalent to replace or change, should be covered within the protection scope of the present invention.

Claims

1. A high-temperature high-pressure spring type safety valve comprises a valve body (3) and is characterized in that a metal sleeve (4) is arranged on the outer side of the valve body (3), liquid receiving connectors (5) are respectively screwed at the top end and the bottom end of the side wall of the metal sleeve (4), a liquid inlet pipe (2) and a liquid outlet pipe (9) are respectively arranged at the bottom end and the side wall of the valve body (3), the liquid inlet pipe (2) and the liquid outlet pipe (9) penetrate through the side wall of the metal sleeve (4), a material guide cylinder (10) communicated with the liquid inlet pipe (2) is arranged on the inner wall of the bottom end of the valve body (3), a valve rod (8) is inserted at the top end of the valve rod (8), plugging blocks (12) are arranged at the bottom end of the material guide cylinder (10), a sealing convex ring matched with the plugging blocks (12) is arranged in the material guide cylinder (10), through holes which are distributed in an annular shape at equal intervals are formed at the position, close to the top end, and the position of the side wall of the material guide cylinder (10) close to the top end of the through hole is sleeved with an annular net piece (11), the annular net sheet (11) is abutted against the inner wall of the valve body (3), the top end of the valve body (3) is provided with a protective sleeve (6), an adjusting sleeve (7) is screwed at the top end of the protective sleeve (6), the valve rod (8) penetrates through the adjusting sleeve (7), a first spring part (14) is sleeved on the outer wall of the valve rod (8), a position-limiting convex ring is arranged on the side wall of the valve rod (8) near the bottom end of the first spring part (14), a metal ring sheet (15) is arranged on the inner wall of the protective sleeve (6), the top end of the first spring part (14) is abutted against the metal ring sheet (15), the inner wall of the first spring part (14) is inserted with a second spring part (16), and the second spring part (16) is sleeved with the valve rod (8), and the top end of the second spring part (16) is abutted against the bottom end of the adjusting sleeve (7).

2. A high-temperature high-pressure spring type safety valve according to claim 1, wherein the ends of the liquid inlet pipe (2) and the liquid outlet pipe (9) far away from the valve body (3) are welded with flange rings (1), and the side walls of the two flange rings (1) are bonded with sealing rings.

3. A high temperature and high pressure spring type safety valve according to claim 2, wherein the top end of the valve rod (8) is provided with a through hole.

4. A high-temperature high-pressure spring type safety valve according to claim 3, wherein the outer wall of the bottom end of the block (12) is provided with a screw hole, and the inner wall of the screw hole is screwed with the temperature sensor (13).

5. A high-temperature high-pressure spring type safety valve according to claim 4, characterized in that the side wall of the valve rod (8) is provided with an annular sealing groove at a position close to the top end of the valve body (3), and the inner wall of the annular sealing groove is clamped with a sealing ring.