CN213145363U

CN213145363U - Emergency bleeding blocking valve

Info

Publication number: CN213145363U
Application number: CN202021633686.5U
Authority: CN
Inventors: 华志宇; 任占誉; 杨坤
Original assignee: Kunming Engineering & Research Institute Of Nonferrous Metallurgy Co ltd
Current assignee: Kunming Engineering & Research Institute Of Nonferrous Metallurgy Co ltd
Priority date: 2020-08-08
Filing date: 2020-08-08
Publication date: 2021-05-07
Anticipated expiration: 2030-08-08

Abstract

The utility model provides an emergent diffusion blocking valve, including the valve body of taking the cavity, locate the valve gap at valve body top, and locate the valve body bottom in it and establish the disk seat of case, the valve body links to each other with the coal gas intake pipe, be equipped with the coal gas export on the disk seat, its characterized in that disk seat is established to take big uncovered at the top, the bottom is taken little uncovered, interior toper seat for the toper chamber, the case is established to the big-end-up's that connects mutually with the toper chamber cone, the case top links to each other with the guide bar, the guide bar top is passed the valve gap and is linked to each other with external drive mechanism. The conical valve core is matched and connected with the conical cavity of the conical valve seat, the guide rod drives the valve core to ascend under the driving of the driving mechanism to open the valve and descend to close the valve, the sealing performance and the reliability of the valve are improved, the service life of the valve is prolonged, the sealing effect is reinforced by fully utilizing the air pressure in the cabinet and the dead weight of the valve core, the sealing performance is greatly improved, and the valve is reliable, durable, low in failure rate, easy to operate and low in cost.

Description

Emergency bleeding blocking valve

Technical Field

The utility model relates to a block valve, especially an promptly diffuse and block valve belongs to valve manufacturing and designing technical field.

Background

The cylindrical rubber mold sealing gas tank is widely used for storing industrial metallurgical gas. According to the volumes of different gas chambers, a plurality of emergency bleeding pipes are arranged on the chamber body and used for safely bleeding gas when equipment is overhauled or a gas chamber piston runs to the maximum stroke position of the gas chamber, so that the gas chamber piston is prevented from rushing to the top and damaging a piston structure and a sealing mechanism. The emergency bleeding pipe used on the existing gas cabinet has the following defects that (1) the existing bleeding valve is of a gravity type valve body structure, and a sealing ring is compressed by the dead weight of a valve plate to play a sealing role, but in actual application, the problem of gas leakage often occurs, and the failure rate is high. (2) The fixed pulley that the bleeder valve used is located the high altitude, and the regular replacement valve gap can increase the operation degree of difficulty and danger coefficient. (3) The rear part of the valve cover is required to be lifted by a large crane to be replaced when the sealing rubber ring of the valve cover is replaced, the overhauling difficulty is high, and the cost is high. There is therefore a need for improvements in the prior art.

Disclosure of Invention

The valve of diffusing for solving the use of current gas chamber has the fault rate height, sealed effect poor, change the high scheduling problem of the maintenance degree of difficulty, the utility model provides an emergent valve of diffusing and blocking.

The utility model discloses a following technical scheme accomplishes: the utility model provides an emergency diffusion blocking valve, including the valve body of taking the cavity, locate the valve gap at valve body top, and locate the valve body bottom in it establish the disk seat of case, the valve body links to each other with the coal gas intake pipe, be equipped with the coal gas export on the disk seat, its characterized in that disk seat establishes to take big uncovered at the top, the uncovered is little taken to the bottom, interior toper seat that is the toper chamber, the case is established to the cone that connects big-end-up who connects with the toper chamber mutually, the case top links to each other with the guide bar, the guide bar top is passed the valve gap and is linked to each other with external drive mechanism, so that connect through the toper case and the toper chamber of toper disk seat, improve the sealing performance and the.

The valve body is a vertical cylinder with a valve cover at the top, an opening at the bottom and a cavity in the bottom, the large opening at the top of the valve seat is connected with the opening at the bottom of the valve body, and the gas inlet pipe is communicated with the side wall of the valve body so as to introduce gas into the cavity of the valve body through the gas inlet pipe.

The big opening at the top of the valve seat is a gas inlet, the small opening at the bottom of the valve seat is a gas outlet, and the gas inlet is connected with the opening at the bottom of the valve body.

The top and the bottom of the valve core are respectively set to be horizontal planes, the side wall of the valve core is matched and connected with the inner wall of the cavity of the valve seat, and the upper part and the lower part of the side wall of the valve core are respectively sleeved with a sealing ring, so that sealing is realized through conical surface matching, and the sealing performance is further enhanced through the sealing rings.

The guide rod is a vertical rod, the bottom of the guide rod is connected with the center of the valve core, and the top of the guide rod penetrates through the valve cover to be connected with an external driving mechanism, so that the guide rod drives the valve core to ascend to open the valve and descend to close the valve under the driving of the driving mechanism.

The driving mechanism is a power cylinder or a winch and is used for lifting or descending the guide rod and the valve core.

The utility model has the advantages of it is following and effect: by adopting the scheme, the conical valve core can be conveniently matched and connected with the conical cavity of the conical valve seat, the valve core is driven by the guide rod to ascend by the driving mechanism to open the valve and descend to close the valve, the sealing capability and reliability of the valve are improved, the service life of the valve is prolonged, the sealing effect can be further enhanced by fully utilizing the air pressure in the cabinet and the dead weight of the valve core, the sealing performance is higher, the reliability and the durability are high, the failure rate is low, the operation is easy, and the cost is low. The emergency relief valve is an ideal emergency relief valve.

Drawings

Fig. 1 is a structural diagram of the present invention.

Detailed Description

The present invention will be further described with reference to the accompanying drawings.

The utility model provides an urgent diffusion shutoff valve, including the valve body 1 of taking the cavity, locate the valve gap 2 at 1 top of valve body to and locate the disk seat 8 of establishing case 7 in it of 1 bottom of valve body, valve body 1 links to each other with coal gas intake pipe 5, is equipped with the coal gas export on the disk seat 8, wherein: the valve seat 8 is a conical seat with a large opening at the top, a small opening at the bottom and a conical cavity inside, the valve core 7 is a cone with a large upper part and a small lower part matched with the conical cavity, the top of the valve core 7 is connected with the guide rod 4, and the top of the guide rod 4 passes through the valve cover 2 and is connected with the external driving mechanism 3; the valve body 1 is a vertical cylinder with a valve cover 2 at the top, an opening at the bottom and a cavity inside, a large opening at the top of the valve seat 8 is connected with the opening at the bottom of the valve body 1, and a gas inlet pipe 5 is communicated with the side wall of the valve body 1 so as to introduce gas into the cavity of the valve body 1 through the gas inlet pipe 5; the big opening at the top of the valve seat 8 is a gas inlet, the small opening at the bottom is a gas outlet, and the gas inlet is connected with the opening at the bottom of the valve body 1; the top and the bottom of the valve core 7 are respectively set as horizontal planes, the side wall of the valve core 7 is matched and connected with the inner wall of the cavity of the valve seat 8, and the upper part and the lower part of the side wall of the valve core 7 are respectively sleeved with a sealing ring 6, so that sealing is realized through conical surface matching, and the sealing performance is further enhanced through the sealing ring 6; the guide rod 4 is a vertical rod, the bottom of the guide rod is connected with the center of the valve core 7, the top of the guide rod penetrates through the valve cover 2 to be connected with the external driving mechanism 3, and the driving mechanism 3 is a power cylinder or a winch, so that the guide rod drives the valve core to ascend to open the valve and descend to close the valve under the driving of the driving mechanism 3.

Claims

1. The utility model provides an emergent diffusion shutoff valve, including the valve body of taking the cavity, locate the valve gap at valve body top, and locate the valve body bottom in it establish the disk seat of case, the valve body links to each other with the coal gas intake pipe, be equipped with the coal gas export on the disk seat, its characterized in that disk seat is established to take big uncovered, the bottom is taken little uncovered, interior toper seat for the toper chamber, the case is established to the big-end-up's that connects with the toper chamber Cone, the case top links to each other with the guide bar, the guide bar top is passed the valve gap and is linked to each other with external drive mechanism.

2. The emergency bleeding shutoff valve according to claim 1, wherein said valve body is a vertical cylinder having a valve cover at the top, an opening at the bottom and a cavity therein, the large opening at the top of the valve seat is connected to the opening at the bottom of the valve body, and the gas inlet pipe is connected to the side wall of the valve body.

3. The emergency bleeding shut-off valve according to claim 1, wherein the large opening at the top of said valve seat is a gas inlet, the small opening at the bottom is a gas outlet, and the gas inlet is connected to the opening at the bottom of the valve body.

4. The emergency bleeding shutoff valve according to claim 1, wherein the top and bottom of said spool are respectively set to horizontal surfaces, the side wall of said spool is fitted to the inner wall of the cavity of said valve seat, and the upper and lower portions of the side wall of said spool are respectively fitted with a sealing ring.

5. The emergency bleeding shut-off valve of claim 1, wherein said guide rod is formed as a vertical rod, the bottom of which is connected to the center of the valve cartridge and the top of which is connected to the external driving mechanism through the valve cover.

6. The emergency bleeding block valve of claim 1, wherein the drive mechanism is a power cylinder or a winch that raises or lowers the guide rod and spool.