CN211715849U - Intelligent pressure release device for double isolation valves - Google Patents

Abstract

The utility model discloses an intelligence pressure release for two isolation valves relates to the intelligence pressure release technical field of valve, for solving the current problem that lacks the pressure release of taking directional fueling injection equipment of intelligence pressure release for two isolation valves. Adjust knob's top is provided with the piston rod, adjust knob's below is provided with the connecting block, the lower extreme of connecting block is provided with the costal part, be provided with link gear between blocked mechanical system and the valve body, the outside of piston rod is provided with the disk seat, be provided with the damping tube between disk seat and the valve body, the inside of valve body is provided with the bellows, the inside of bellows is provided with the pressure regulating spring, the inside of pressure regulating spring is provided with the overflow pipe, be provided with the exhaust hole between bellows and the valve body, one side of overflow pipe is provided with the diaphragm air chamber, be provided with the diaphragm between overflow pipe.

Description

Intelligent pressure release device for double isolation valves

Technical Field

The utility model relates to an intelligence pressure release technical field of valve specifically is an intelligence pressure release for two isolation valve door.

Background

The isolation valve is designed to provide a double isolation barrier; typically, this is achieved using a double piston effect seat (ball or plate gate) valve or a double expansion gate valve. These types of valves are non-self-releasing. In fact, each valve seat is designed to provide a tight seal regardless of whether pressure is applied to the body from the line or from the body to the line. This means that the final overpressure is retained in the body cavity by the specific valve seat design, and an important issue in the design of the pressure relief device is where the excess pressure should be directed, from the purpose of passing the excess fluid from the body cavity to the High Pressure (HP) side of the valve, which should be isolated by a shut-off valve which has the function of preventing fluid from entering the low pressure conduit when closed, and therefore, the use of intelligent pressure relief devices for double isolation valves is becoming more widespread.

At present, the intelligent pressure release device for the double isolation valves on the market lacks a pressure release valve with a directional oil injection device to directionally spray out the released transformer oil and guide the transformer oil into an oil collecting tank through an oil guide pipe, so that splashing of hot oil is reduced, and the requirements of users cannot be met, therefore, the market urgently needs to develop an intelligent pressure release device for the double isolation valves to help people to solve the existing problems.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide an intelligence pressure release for two isolation valves to solve the current problem that lacks the pressure release of taking directional fueling injection equipment of intelligence pressure release for two isolation valves who proposes among the above-mentioned background art.

In order to achieve the above object, the utility model provides a following technical scheme: an intelligent pressure release device for a double-isolation valve comprises an adjusting knob, wherein a piston rod is arranged above the adjusting knob, a connecting block is arranged below the adjusting knob, a rib part is arranged at the lower end of the connecting block, a plurality of rib part reinforcing ribs are arranged outside the rib part in an annular array, a valve body is arranged below the rib part, a connecting flange is arranged between the rib part and the valve body, two connecting flanges are arranged, a fastening bolt is arranged between the two connecting flanges, a plurality of fastening bolts are arranged, an input end is arranged at one end of the valve body, an output end is arranged at the other end of the valve body, a locking mechanism is arranged outside the valve body, two locking mechanisms are arranged, a linkage mechanism is arranged between the locking mechanism and the valve body, a valve seat is arranged outside the piston rod, and a damping tube is arranged between the valve, the inside of valve body is provided with the bellows, the inside of bellows is provided with the pressure regulating spring, the inside of pressure regulating spring is provided with the overflow pipe, be provided with the exhaust hole between bellows and the valve body, one side of overflow pipe is provided with the diaphragm air chamber, be provided with the diaphragm between overflow pipe and the diaphragm air chamber.

Preferably, one end of the piston rod penetrates through the connecting block, one end of the piston rod extends into the valve seat, and the rib and the connecting block are of an integral structure.

Preferably, the adjusting knob is rotatably connected with the connecting block, and the rib valve body is in sealing connection through the connecting flange.

Preferably, the corrugated pipe is connected with the valve body in a sealing mode, and the corrugated pipe is fixedly connected with the pressure regulating spring.

Preferably, one end of the overflow pipe penetrates through and extends to the outside of the diaphragm air chamber, and the corrugated pipe is connected with the exhaust hole in a sealing mode.

Preferably, the locking mechanism is fixedly connected with a linkage mechanism, and the linkage mechanism is fixedly connected with the pressure regulating spring.

Compared with the prior art, the beneficial effects of the utility model are that:

1. this an intelligent pressure relief device for two isolation valves is through setting up the overflow pipe, the input is in the same place with the oil tank cap threaded connection of transformer, this moment, the overflow pipe that gets into in the input set up through the orientation flows into the below of disk seat, through rotatory adjust knob, the piston rod of adjust knob linkage slides in the disk seat, there is the aperture under the disk seat, thereby block or the current-limiting to the flow of hot oil, hot oil passes through the overflow pipe that the damping tube got into the opposite side, the overflow pipe of being connected with the opposite side output is discharged hot oil, can be with the directional blowout of hot oil that releases, and the leading-in oil catch basin of overflow pipe, prevent that oil from splashing, the problem of the pressure relief valve that the lack of the directional oil.

2. This an intelligent pressure release for two isolation valve is through setting up link gear and pressure regulating spring, and link gear constantly compresses the pressure regulating spring, and the pressure regulating spring compresses to the diaphragm air chamber of one side, when the valve body internal pressure exceeded the atmospheric pressure value of settlement, carries out atmospheric pressure through the exhaust hole and discharges, and simultaneously, when pressure dropped to the closed pressure value, the valve body carried out reliable closing, kept the malleation in the messenger's oil tank, and outside air, moisture content and other impurity can't get into the valve body.

Drawings

Fig. 1 is a front view of the present invention;

FIG. 2 is a schematic view of the internal structure of the present invention;

fig. 3 is a partial enlarged view of the area a of the present invention.

In the figure: 1. a piston rod; 2. adjusting a knob; 3. a rib portion; 4. connecting blocks; 5. a connecting flange; 6. fastening a bolt; 7. a locking mechanism; 8. a linkage mechanism; 9. an input end; 10. an output end; 11. a bellows; 12. a pressure regulating spring; 13. an overflow pipe; 14. an exhaust hole; 15. a diaphragm air chamber; 16. a damper tube; 17. a membrane; 18. a valve seat; 19. a rib portion reinforcing rib; 20. a valve body.

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. 1-3, the present invention provides an embodiment: an intelligent pressure release device for a double-isolation valve comprises an adjusting knob 2, a piston rod 1 is arranged above the adjusting knob 2, a connecting block 4 is arranged below the adjusting knob 2, a rib part 3 is arranged at the lower end of the connecting block 4, a plurality of rib part reinforcing ribs 19 are arranged outside the rib part 3 in an annular array to reinforce the whole structure, a valve body 20 is arranged below the rib part 3, connecting flanges 5 are arranged between the rib part 3 and the valve body 20, two connecting flanges 5 are arranged, fastening bolts 6 are arranged between the two connecting flanges 5, a plurality of fastening bolts 6 are arranged, one end of the valve body 20 is provided with an input end 9, the other end of the valve body 20 is provided with an output end 10, a locking mechanism 7 is arranged outside the valve body 20, two locking mechanisms 7 are arranged, and a linkage mechanism 8 is arranged between the locking mechanism 7 and the, the piston rod 1 is provided with a valve seat 18 outside, a damping tube 16 is arranged between the valve seat 18 and the valve body 20, a corrugated tube 11 is arranged inside the valve body 20, a pressure regulating spring 12 is arranged inside the corrugated tube 11, an overflow tube 13 is arranged inside the pressure regulating spring 12, released hot oil can be sprayed out in a directional mode and guided into an oil collecting pool through the overflow tube, oil splashing is prevented, an exhaust hole 14 is arranged between the corrugated tube 11 and the valve body 20, a diaphragm air chamber 15 is arranged on one side of the overflow tube 13, and a diaphragm 17 is arranged between the overflow tube 13 and the diaphragm air chamber 15.

Further, one end of the piston rod 1 penetrates through the connecting block 4, one end of the piston rod 1 extends into the valve seat 18, the rib portion 3 and the connecting block 4 are of an integral structure, and the whole structure is good.

Furthermore, the adjusting knob 2 is rotatably connected with the connecting block 4, the rib part 3 and the valve body 20 are in sealing connection through the connecting flange 5, and the sealing connection performance is good.

Furthermore, the corrugated pipe 11 is hermetically connected with the valve body 20, the corrugated pipe 11 is fixedly connected with the pressure regulating spring 12, and the connection between the structures is more reasonable.

Furthermore, one end of the overflow pipe 13 penetrates and extends to the outside of the diaphragm air chamber 15, the corrugated pipe 11 is hermetically connected with the exhaust hole 14, and the released hot oil can be directionally sprayed out and guided into the oil collecting tank through the overflow pipe, so that the oil can be prevented from splashing.

Furthermore, the locking mechanism 7 is fixedly connected with the linkage mechanism 8, and the linkage mechanism 8 is fixedly connected with the pressure regulating spring 12, so that positive pressure is kept in the oil tank, and external air, moisture and other impurities cannot enter the valve body 20.

The working principle is as follows: when the pressure regulating valve is used, firstly, the valve body 20 is of a stainless steel structure, corrosion resistance and durability are good, the pressure regulating valve is in threaded connection with an oil tank cover of a transformer through the input end 9, at the moment, hot oil entering the input end 9 flows into the lower part of the valve seat 18 through the overflow pipe 13 which is arranged in a directional mode, the piston rod 1 linked with the adjusting knob 2 slides in the valve seat 18 by rotating the adjusting knob 2, a small hole is formed in the lower part of the valve seat 18 so as to block or limit the flow of the hot oil, the hot oil enters the overflow pipe 13 at the other side through the damping pipe 16, the overflow pipe 13 connected with the output end 10 at the other side discharges the hot oil, the released hot oil can be sprayed out in a directional mode and is guided into an oil collecting tank through the overflow pipe to prevent the oil from splashing, meanwhile, the locking mechanism 7 is opened, the locking mechanism 7 drives, when the pressure in the valve body 20 exceeds the set pressure value, the air pressure is discharged through the vent hole 14, and simultaneously, when the pressure is reduced to the closing pressure value, the valve body 20 is reliably closed, so that the positive pressure is maintained in the oil tank, and external air, moisture and other impurities cannot enter the valve body 20.

It is obvious to a person skilled in the art that the invention is not restricted to details of the above-described exemplary embodiments, but that it can be implemented in other specific forms without departing from the spirit or essential characteristics of the invention. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.

Claims (6)

1. An intelligent pressure relief device for a double isolation valve, comprising an adjusting knob (2), characterized in that: the adjusting mechanism is characterized in that a piston rod (1) is arranged above the adjusting knob (2), a connecting block (4) is arranged below the adjusting knob (2), rib parts (3) are arranged at the lower end of the connecting block (4), a plurality of rib part reinforcing ribs (19) are arranged outside the rib parts (3) in an annular array, a valve body (20) is arranged below the rib parts (3), a connecting flange (5) is arranged between the rib parts (3) and the valve body (20), two connecting flanges (5) are arranged, a fastening bolt (6) is arranged between the two connecting flanges (5), a plurality of fastening bolts (6) are arranged, an input end (9) is arranged at one end of the valve body (20), an output end (10) is arranged at the other end of the valve body (20), a locking mechanism (7) is arranged outside the valve body (20), and two locking mechanisms (7) are arranged, be provided with link gear (8) between blocked mechanical system (7) and valve body (20), the outside of piston rod (1) is provided with disk seat (18), be provided with damping tube (16) between disk seat (18) and valve body (20), the inside of valve body (20) is provided with bellows (11), the inside of bellows (11) is provided with pressure regulating spring (12), the inside of pressure regulating spring (12) is provided with overflow pipe (13), be provided with exhaust hole (14) between bellows (11) and valve body (20), one side of overflow pipe (13) is provided with diaphragm air chamber (15), be provided with diaphragm (17) between overflow pipe (13) and diaphragm air chamber (15).

2. The intelligent pressure relief device for a double isolation valve of claim 1, wherein: one end of the piston rod (1) penetrates through the connecting block (4), one end of the piston rod (1) extends into the valve seat (18), and the rib portion (3) and the connecting block (4) are of an integrated structure.

3. The intelligent pressure relief device for a double isolation valve of claim 1, wherein: adjusting knob (2) and connecting block (4) rotate to be connected, rib portion (3) valve body (20) are through flange (5) sealing connection.

4. The intelligent pressure relief device for a double isolation valve of claim 1, wherein: bellows (11) and valve body (20) sealing connection, bellows (11) and pressure regulating spring (12) fixed connection.

5. The intelligent pressure relief device for a double isolation valve of claim 1, wherein: one end of the overflow pipe (13) penetrates through and extends to the outside of the diaphragm air chamber (15), and the corrugated pipe (11) is connected with the exhaust hole (14) in a sealing mode.

6. The intelligent pressure relief device for a double isolation valve of claim 1, wherein: the locking mechanism (7) is fixedly connected with the linkage mechanism (8), and the linkage mechanism (8) is fixedly connected with the pressure regulating spring (12).

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