CN214662036U

CN214662036U - Tank car anticorrosive emergency cut-off valve

Info

Publication number: CN214662036U
Application number: CN202023293228.4U
Authority: CN
Inventors: 金可刚; 颜士娟; 陈晓宇; 王委
Original assignee: Zhejiang Nanhua Anticorrosion Equipments Co ltd
Current assignee: Zhejiang Nanhua Anticorrosion Equipments Co ltd
Priority date: 2020-12-31
Filing date: 2020-12-31
Publication date: 2021-11-09
Anticipated expiration: 2030-12-31

Abstract

The utility model discloses an anticorrosive type emergency cut-off valve of tank car, including last valve body, it is equipped with down the valve body to go up the valve body below, it is equipped with the flange to go up port under the valve body, lower valve body up end is equipped with the lower flange, go up the flange and pass through bolt fixed connection with lower flange, it is equipped with the valve gap to go up the flange top, it has the core hole to open on the valve gap, the poor case that is equipped with in the core hole, the case periphery is around having sticising spring, the case lower extreme is equipped with and hinders the liquid stopper, it is equipped with the liquid outlet respectively to go up valve body left and right sides both ends, the lower valve body left end is equipped with annotates the liquid mouth, lower valve body bottom is equipped with the cylinder, the output of cylinder is equipped with ejector pin, the anticorrosive bellows of the peripheral suit of ejector pin, the ejector pin top is equipped with and hinders the liquid stopper cooperation and use. The utility model overcomes the relatively poor problem of anticorrosive effect of traditional trip valve that exists among the prior art. The utility model has the advantages of corrosion resistance is strong, the installation is maintained conveniently, the security is high and long service life.

Description

Tank car anticorrosive emergency cut-off valve

Technical Field

The utility model relates to a trip valve structure, more specifically say, relate to an anticorrosive type emergency cut-off valve of tank car.

Background

The emergency cut-off valve for the road transportation liquid dangerous cargo tank vehicle is commonly called a safety cut-off valve, can be automatically closed under the condition of encountering an emergency accident, ensures the complete sealing property of a tank body, and avoids the leakage of liquid dangerous goods. With the increasing requirements on the safety of road transportation of liquid dangerous goods, the emergency cut-off valve is used as a safety protection accessory for preventing leakage of a vehicle tank and is now necessary equipment of a liquid dangerous goods transportation vehicle. In order to ensure the strength and certain corrosion resistance, the emergency cut-off valve on the market at present is mostly made of stainless steel, but is seriously corroded by acid, alkali or oxidizing overflowing media and the like, so that the potential safety hazard is relatively large. And the built-in type of cylinder is adopted to the quick action emergency valve mostly, and the installation and the dismantlement are numerous and diverse, are not convenient for the maintenance in later stage and the change of spare part etc..

SUMMERY OF THE UTILITY MODEL

The utility model discloses an overcome the relatively poor problem of anticorrosive effect of traditional trip valve that exists among the prior art, now provide and have anticorrosive type emergency trip valve of tank car that anticorrosive effect is good.

The utility model discloses an anticorrosive type emergency cut-off valve of tank car, including last valve body, last valve body below be equipped with down the valve body, last valve body under the port be equipped with the flange, lower valve body on the port be equipped with the lower flange, last flange pass through bolt fixed connection with lower flange, last flange top be equipped with the valve gap, the valve gap on open and to have the core hole, core hole interpolation be equipped with the case, the case periphery around having compression spring, the case lower extreme be equipped with and hinder the liquid stopper, last valve body left and right sides both ends be equipped with the liquid outlet respectively, lower valve body left end be equipped with and annotate the liquid mouth, lower valve body bottom be equipped with the cylinder, the output of cylinder be equipped with ejector pin, the peripheral anticorrosive bellows of piston pin suit, the piston ejector pin top be equipped with and hinder the top stopper cooperation use of liquid.

The upper valve body is made of hard anticorrosive plastic, the lower valve body is made of light aluminum alloy inner layer lining plastic or glass fiber reinforced plastic and other high-strength anticorrosive materials, the compression spring is sleeved with a polytetrafluoroethylene and other anticorrosive plastic pipe, and the piston ejector rod is wrapped with polytetrafluoroethylene and other anticorrosive plastic materials of sealing corrugated pipes.

The utility model discloses an upper and lower valve body components of a whole that can function independently connected mode goes up the valve body and embeds, and the concave type shearing groove of lower valve body flange lower edge design cuts off by oneself when meeting with the striking, goes up valve body self-closing, ensures the complete leakproofness of the jar body, avoids the leakage of liquid hazardous articles.

The utility model discloses an external pattern of cylinder design, with lower valve body flange joint, the installation is with tearing open portably, does benefit to the change etc. of maintaining and spare part, and the cylinder is external, compares the cylinder and embeds, and the valve body overflows the flux under can effective dilatation, shortens to load and unload the material consuming time.

Preferably, a sealing ring mounting seat is arranged on the inner wall below the liquid injection port of the lower flange, a sealing ring is arranged at the upper end of the sealing ring mounting seat, a push rod groove is formed in the center of the liquid blocking plug, and a shearing groove is formed in the periphery of the lower valve body.

Preferably, the right end of the cylinder is provided with an air tap, the bottom of the cylinder is provided with an fusible plug, a cylinder groove is arranged in the cylinder, the end part of the piston mandril is inserted into the cylinder groove, and the bottom of the piston mandril positioned in the cylinder groove is provided with a stroke sensing element.

The utility model discloses at the built-in stroke sensing element of cylinder piston, show piston ejector pin round trip. When the air pressure value is met, if the stroke of the piston mandril is reduced, the valve body clamping groove can be judged in advance; if the air is leaked, the stroke of the ejector rod is reduced, and the failure of the compression spring can be judged in advance. Is convenient for timely maintenance and eliminates potential safety hazards.

The upper valve body is made of hard anticorrosive plastic, the lower valve body is made of light aluminum alloy inner layer lining plastic or glass fiber reinforced plastic and other high-strength anticorrosive materials, a compression spring is sleeved with a polytetrafluoroethylene and other anticorrosive plastic pipe, and a cylinder piston ejector rod is wrapped with polytetrafluoroethylene and other anticorrosive plastic materials of sealing corrugated pipes. Acid and alkali resistance, oxidation and the like, and does not generate chemical reaction with a transport medium, so that the practicability and the application range of the stop valve are improved, and the stop valve is safer and more environment-friendly.

The utility model discloses following beneficial effect has: the corrosion resistance is strong, the installation and maintenance are convenient, the safety is high, and the service life is long.

Drawings

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

The anti-explosion valve comprises an upper valve body 1, a lower valve body 2, an upper flange 3, a lower flange 4, a valve cover 5, a valve core 6, a liquid blocking plug 7, a liquid outlet 8, a liquid injection port 9, a cylinder 10, a piston ejector rod 11, a top plug 12, a sealing ring mounting seat 13, a sealing ring 14, a shearing groove 15, an air tap 16, an fusible plug 17, a cylinder groove 18 and a stroke sensing element 19.

Detailed Description

The technical solution of the present invention is further specifically described below by way of examples and with reference to the accompanying drawings.

Example 1: the utility model is further explained according to the attached figure 1, the tank car anticorrosion emergency cut-off valve of this embodiment comprises an upper valve body 1, a lower valve body 2 is arranged below the upper valve body 1, an upper flange 3 is arranged at the lower port of the upper valve body 1, a lower flange 4 is arranged at the upper port of the lower valve body 2, the upper flange 3 is fixedly connected with the lower flange 4 through bolts, a valve cover 5 is arranged at the top of the upper flange 3, a core hole is arranged on the valve cover 5, a valve core 6 is inserted in the core hole, a compression spring is wound on the periphery of the valve core 6, a liquid blocking plug 7 is arranged at the lower end of the valve core 6, liquid outlets 8 are respectively arranged at the left end and the right end of the upper valve body 1, a cylinder 10 is arranged at the bottom of the liquid injection valve body 2, a piston mandril 11 is arranged at the output end of the cylinder 10, an anticorrosion corrugated pipe is sleeved on the periphery of the piston mandril 11, the top of the piston mandril 11 is provided with a top plug 12 which is matched with the liquid blocking plug 7.

And a sealing ring mounting seat 13 is arranged on the inner wall below the liquid injection port 9 of the lower flange 4, a sealing ring 14 is arranged at the upper end of the sealing ring mounting seat 13, a push rod groove is formed in the center of the liquid blocking plug 7, and a shearing groove 15 is formed in the periphery of the lower valve body 2.

The right end of the cylinder 10 is provided with an air tap 16, the bottom of the cylinder 10 is provided with an fusible plug 17, a cylinder groove 18 is arranged in the cylinder 10, the end part of the piston mandril 11 is inserted into the cylinder groove 18, and the bottom of the piston mandril 11 positioned in the cylinder groove 18 is provided with a stroke sensing element 19.

The above description is only for the specific embodiment of the present invention, but the structural features of the present invention are not limited thereto, and any person skilled in the art can make changes or modifications within the scope of the present invention.

Claims

1. An anticorrosive emergency cut-off valve for a tank car comprises an upper valve body (1), wherein a lower valve body (2) is arranged below the upper valve body (1), and is characterized in that an upper flange (3) is arranged at a lower port of the upper valve body (1), a lower flange (4) is arranged at an upper port of the lower valve body (2), the upper flange (3) is fixedly connected with the lower flange (4) through bolts, a valve cover (5) is arranged at the top of the upper flange (3), a core hole is formed in the valve cover (5), a valve core (6) is inserted in the core hole, a compression spring is wound on the periphery of the valve core (6), a liquid blocking plug (7) is arranged at the lower end of the valve core (6), liquid outlets (8) are respectively arranged at the left end and the right end of the upper valve body (1), a liquid injection port (9) is arranged at the left end of the lower valve body (2), a cylinder (10) is arranged at the bottom of the lower valve body (2), the anti-corrosion corrugated pipe is characterized in that a piston ejector rod (11) is arranged at the output end of the cylinder (10), the periphery of the piston ejector rod (11) is sleeved with the anti-corrosion corrugated pipe, and a top plug (12) matched with the liquid blocking plug (7) is arranged at the top of the piston ejector rod (11).

2. The tank car anti-corrosion type emergency shut-off valve as claimed in claim 1, wherein a sealing ring mounting seat (13) is arranged on the inner wall below the liquid injection port (9) of the lower flange (4), a sealing ring (14) is arranged at the upper end of the sealing ring mounting seat (13), a ejector rod groove is formed in the center of the liquid blocking plug (7), and a shearing groove (15) is formed in the periphery of the lower valve body (2).

3. The tank car anti-corrosion type emergency cut-off valve as claimed in claim 1, wherein an air tap (16) is arranged at the right end of the cylinder (10), an fusible plug (17) is arranged at the bottom of the cylinder (10), a cylinder groove (18) is formed in the cylinder (10), the end part of the piston ejector rod (11) is inserted into the cylinder groove (18), and a stroke sensing element (19) is arranged at the bottom of the piston ejector rod (11) positioned in the cylinder groove (18).