阅读说明：本技术 一种超低温加注用阀门 (Valve for ultralow temperature filling ) 是由 谢书豪 于 2021-08-19 设计创作，主要内容包括：本发明属于阀门领域,具体的说是一种超低温加注用阀门,包括阀体,所述阀体的两端螺栓连接有六角螺栓,所述六角螺栓的内腔与阀体的内腔活动连接,所述阀体内腔的顶部螺栓连接有螺栓杆,所述螺栓杆外表面的上部套接有卡接外壳,所述螺栓杆的顶端固定连接有旋转把手,所述螺栓杆外表面的顶端与旋转把手内壁的轴心处套接。当使用者通过该装置进行加压时,压力变换器受到强力的作用力,将橡胶筒扩张开,吸收天然气液体产生的反作用力,减小天然气液体对改装塞的渗透压,进而减小天然气液体从改装塞渗透到外界的可能性,规避了传统阀门自身结构发生泄漏情况,减少了泄漏的风险,提高了阀门的安全性。(The invention belongs to the field of valves, and particularly relates to a valve for ultralow-temperature filling, which comprises a valve body, wherein two ends of the valve body are in bolted connection with hexagon bolts, an inner cavity of the hexagon bolts is movably connected with an inner cavity of the valve body, the top of the inner cavity of the valve body is in bolted connection with a bolt rod, the upper part of the outer surface of the bolt rod is sleeved with a clamping shell, the top end of the bolt rod is fixedly connected with a rotating handle, and the top end of the outer surface of the bolt rod is sleeved with the axis of the inner wall of the rotating handle. When the user pressurizes through the device, pressure transducer receives powerful effort, expands the rubber cylinder and opens, absorbs the reaction force that natural gas liquid produced, reduces the osmotic pressure of natural gas liquid to the repacking stopper, and then reduces natural gas liquid and fills up the possibility of permeating to the external world from the repacking, has avoidd traditional valve self structure and has taken place the leakage condition, has reduced the risk of leaking, has improved the security of valve.)

1. The utility model provides an ultra-low temperature is valve for filling, includes valve body (1), its characterized in that: the both ends bolted connection of valve body (1) has hex bolts (2), the inner chamber of hex bolts (2) and the inner chamber swing joint of valve body (1), the top bolted connection of valve body (1) inner chamber has shank of bolt (3), the joint shell has been cup jointed on the upper portion of shank of bolt (3) surface, the rotatory handle (4) of top fixedly connected with of shank of bolt (3), the top of shank of bolt (3) surface cup joints with the axle center department of rotatory handle (4) inner wall.

2. The ultra-low temperature filling valve according to claim 1, wherein: the valve body (1) comprises a reinforced metal shell (11), a round groove is formed in the bottom of the inner cavity of the reinforced metal shell (11), a detection port (7) is fixedly connected to the bottom of the inner cavity of the reinforced metal shell (11) through the round groove, pressure converters (5) are fixedly connected to two ends of the inner wall of the reinforced metal shell (11), a rubber cylinder (12) is fixedly connected to the outer surface of each pressure converter, metal fixing pieces (13) are fixedly connected to two ends of the rubber cylinder (12), the back of the outer surface of each metal fixing piece (13) is fixedly connected with the front of a hexagonal bolt (2), a sleeve (15) is fixedly connected to the top of the inner cavity of the reinforced metal shell (11) through the round groove, a bolt head (14) is connected to the bottom of the inner wall of the sleeve (15), and a modification plug (6) is fixedly connected to the lower surface of the bolt head (14), the upper surface of the bolt head (14) is fixedly connected with a connecting rod.

3. The ultra-low temperature filling valve according to claim 2, wherein: pressure converter (5) include bolt (51), the surface of bolt (51) passes through the trompil and strengthens the inner chamber fixed connection of metal-back (11), the bottom fixedly connected with slide bar (53) of bolt (51), powerful spring (52) have been cup jointed to the surface of slide bar (53), the equal sliding connection in both sides of slide bar (53) surface has hank piece (54), the left side of hank piece (54) inner wall is through perforation fixedly connected with rubber ring (55), the both ends of rubber ring (55) all with strengthen the inner wall fixed connection of metal-back (11).

4. The ultra-low temperature filling valve according to claim 2, wherein: the modified plug (6) comprises a buckle piece (61), a slot (62) is formed in the bottom end of the buckle piece (61), a plug is fixedly connected to the top end of the buckle piece (61), a water baffle (64) is connected to the outer surface of the buckle piece (61) in a sliding mode, a fixing ring (63) is connected to the bottom end of the water baffle (64) in a rotating mode, and the outer surface of the fixing ring (63) is connected with the inner wall of the reinforced metal shell (11) in a sliding mode.

5. The ultra-low temperature filling valve according to claim 2, wherein: detect mouth (7) including end cover (71), the surface of end cover (71) and the lower part fixed connection of reinforceing metal-back (11) inner chamber, the waterproof cover of positive fixedly connected with (72) of end cover (71), the back of waterproof cover (72) and the inner wall fixed connection of reinforceing metal-back (11), the aperture has evenly been seted up to the back of end cover (71) inner chamber, the back of end cover (71) inner chamber passes through aperture fixedly connected with pressure release pipe (8), the surface bolted connection of end cover (71) has semicircle pullover (73).

6. The ultra-low temperature filling valve according to claim 5, wherein: pressure release pipe (8) are including a grooving section of thick bamboo (81), the surface of a grooving section of thick bamboo (81) passes through the back fixed connection of aperture and end cover (71) inner chamber, the inner chamber sliding connection of a grooving section of thick bamboo (81) has plastics end (83), the upper surface of a grooving section of thick bamboo (81) passes through spacing spring (82) and the lower part fixed connection of plastics end (83) surface, liquid outlet (84) have been seted up to the bottom of plastics end (83) inner chamber, the inner wall of plastics end (83) is link up on the top of liquid outlet (84).

Technical Field

The invention belongs to the field of valves, and particularly relates to a valve for ultralow-temperature filling.

Background

The main components of the liquefied natural gas are methane, a small amount of ethane, propane and other components, the boiling point of the liquefied natural gas is-162 ℃, the melting point of the liquefied natural gas is-182 ℃, and the burning point of the liquefied natural gas is 650 ℃. The liquid natural gas has small molecular weight, low viscosity, strong permeability and easy leakage and diffusion, and the low-temperature valve plays an extremely important role in the safe and reliable operation of the system in devices such as production, receiving, transportation, gasification and the like, wherein the liquid filling port is a filling device in the receiving system.

The existing valve is usually applied to the transfusion of common liquid, a low-temperature valve is needed for transporting inflammable substances such as liquefied natural gas, otherwise, explosion accidents are easily caused, and when the general filling valve is pressurized, the leakage condition is most easily caused due to the structure of the general filling valve, so that certain risks are generated.

Disclosure of Invention

Technical problem to be solved

Aiming at the defects of the prior art, the invention provides a valve, which solves the problem that the valve is easy to leak when pressurized.

(II) technical scheme

The technical scheme adopted by the invention for solving the technical problems is as follows: the valve for ultralow-temperature filling comprises a valve body, wherein hexagonal bolts are connected to two ends of the valve body through bolts, an inner cavity of each hexagonal bolt is movably connected with an inner cavity of the valve body, a bolt rod is connected to the top of the inner cavity of the valve body through a bolt, a clamping shell is sleeved on the upper portion of the outer surface of the bolt rod, a rotating handle is fixedly connected to the top end of the bolt rod, and the top end of the outer surface of the bolt rod is sleeved with the axis of the inner wall of the rotating handle.

The valve body is including reinforceing the metal casing, the circular slot has been seted up to the bottom of reinforceing the metal casing inner chamber, the bottom of reinforceing the metal casing inner chamber is through circular slot fixedly connected with detection mouth, the equal fixedly connected with pressure transducer in both ends of reinforceing the metal casing inner wall, the outer fixed surface of pressure transducer links there is the rubber section of thick bamboo, the equal fixedly connected with metal stationary blade in both ends of rubber section of thick bamboo, the back of metal stationary blade surface and hex bolts's positive fixed connection, the top of reinforceing the metal casing inner chamber is through circular slot fixedly connected with sleeve, the bottom bolted connection of sleeve inner wall has the bolt head, the lower fixed surface of bolt head is connected with the repacking stopper, the last fixed surface of bolt head is connected with the connecting rod.

The pressure converter comprises a bolt, the outer surface of the bolt is fixedly connected with the inner cavity of the reinforced metal shell through an opening, a sliding rod is fixedly connected to the bottom end of the bolt, a strong spring is sleeved on the outer surface of the sliding rod, twisting pieces are connected to the two sides of the outer surface of the sliding rod in a sliding mode, a rubber ring is fixedly connected to the left side of the inner wall of each twisting piece through a through hole, and the two ends of the rubber ring are fixedly connected with the inner wall of the reinforced metal shell.

The modified plug comprises a buckle piece, a slot is formed in the bottom end of the buckle piece, a plug is fixedly connected to the top end of the buckle piece, a water baffle is connected to the outer surface of the buckle piece in a sliding mode, a fixing ring is connected to the bottom end of the water baffle in a rotating mode, and the outer surface of the fixing ring is connected with the inner wall of the reinforced metal shell in a sliding mode.

The detection port comprises a bottom sleeve, the outer surface of the bottom sleeve is fixedly connected with the lower portion of the reinforced metal shell inner cavity, the front fixedly connected with waterproof sleeve of the bottom sleeve is fixedly connected with the inner wall of the reinforced metal shell, small holes are uniformly formed in the back of the bottom sleeve inner cavity, the back of the bottom sleeve inner cavity is fixedly connected with a pressure relief pipe through the small holes, and the outer surface of the bottom sleeve is connected with a semicircular sleeve head through bolts.

The pressure relief pipe comprises a grooving barrel, the outer surface of the grooving barrel is fixedly connected with the back of the inner cavity of the bottom sleeve through a small hole, the inner cavity of the grooving barrel is connected with a plastic end in a sliding mode, the upper surface of the grooving barrel is fixedly connected with the lower portion of the outer surface of the plastic end through a limiting spring, a liquid outlet is formed in the bottom end of the inner cavity of the plastic end, and the top end of the liquid outlet penetrates through the inner wall of the plastic end.

The invention has the following beneficial effects:

1. when the user pressurizes through the device, clockwise rotation handle, rotation handle passes through the connecting rod and slides down the bolt head spiral, strengthen the inner space of metal casing this moment sharply and reduce, inside natural gas liquid pressure boost, natural gas liquid is to strengthening the reaction force increase of metal casing, pressure transducer receives powerful effort this moment, expand the rubber tube and open, absorb the reaction force that natural gas liquid produced, reduce the osmotic pressure of natural gas liquid to repacking stopper, and then reduce the natural gas liquid and follow the possibility that repacking stopper permeates to the external world, it takes place the leakage condition to avoid traditional valve self structure, the risk of leaking has been reduced, the security of valve has been improved.

2. The repacking stopper has two kinds of functions, repacking stopper only plays ordinary piston effect under normal conditions, when the person of receiving rotates rotatory handle and will repack the stopper excessively when extrudeing, the buckle spare of repacking stopper can joint each other, construct the inside drum skeleton of repacking stopper, can prevent the user on the one hand and excessively screw, on the other hand, the repacking stopper that possesses the drum skeleton is more firm, can effectively bear the powerful pressure that inside liquid gave, the breakwater section of outside this moment is acute angle triangle-shaped shape, the impact force that can effectively cushion liquid and give.

3. Because the device is for an ultra-low temperature adds valve for notes, the user can not touch easily, there is the risk of frostbite easily, but if want to detect the inside liquid composition of valve, have to dismantle the detection with the valve again, make detection achievement more troublesome, the user uses professional instrument to take off semicircle pullover from the end cover this moment, pressurize the valve, the plastics end receives the inner chamber gliding along the grooved drum after pressure, the extrusion force that the bottom of plastics end received reduces, the liquid outlet grow under the effect of pressure, liquid oozes from the liquid outlet, the inside liquid of valve can be collected under the condition of not dismantling the valve this moment to the measurement personnel, and then accomplish detection achievement, it is fairly convenient.

Drawings

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

FIG. 2 is a cross-sectional view of the valve body of the present invention;

FIG. 3 is a schematic diagram of the pressure transducer of the present invention;

FIG. 4 is a schematic structural view of the retrofit plug of the present invention;

FIG. 5 is a schematic view of the structure of the detection port of the present invention;

FIG. 6 is a schematic view of the construction of the pressure relief tube of the present invention.

In the figure: the valve comprises a valve body 1, a hexagon bolt 2, a bolt rod 3, a rotary handle 4, a reinforced metal shell 11, a rubber cylinder 12, a metal fixing sheet 13, a bolt head 14, a sleeve 15, a pressure converter 5, a bolt 51, a strong spring 52, a sliding rod 53, a twisting piece 54, a rubber ring 55, a modified plug 6, a buckling piece 61, a slot 62, a fixing ring 63, a water baffle plate 64, a detection port 7, a bottom sleeve 71, a waterproof sleeve 72, a semicircular sleeve head 73, a pressure relief pipe 8, a slotted cylinder 81, a limiting spring 82, a plastic end 83 and a liquid outlet 84.

Detailed Description

One embodiment of the present invention will be described below with reference to fig. 1 to 6.

As shown in fig. 1-6, the valve for ultralow temperature filling according to the present invention comprises a valve body 1, both ends of the valve body 1 are bolted with hex bolts 2, an inner cavity of the hex bolts 2 is movably connected with an inner cavity of the valve body 1, a top of the inner cavity of the valve body 1 is bolted with a bolt rod 3, an upper portion of an outer surface of the bolt rod 3 is sleeved with a clamping housing, a top end of the bolt rod 3 is fixedly connected with a rotating handle 4, and a top end of the outer surface of the bolt rod 3 is sleeved with an axis of an inner wall of the rotating handle 4.

The valve body 1 comprises a reinforced metal shell 11, a circular groove is formed in the bottom of an inner cavity of the reinforced metal shell 11, a detection port 7 is fixedly connected to the bottom of the inner cavity of the reinforced metal shell 11 through the circular groove, pressure transducers 5 are fixedly connected to two ends of an inner wall of the reinforced metal shell 11, a rubber cylinder 12 is fixedly connected to the outer surface of each pressure transducer, metal fixing pieces 13 are fixedly connected to two ends of the rubber cylinder 12, the back of the outer surface of each metal fixing piece 13 is fixedly connected with the front of a hexagonal bolt 2, a sleeve 15 is fixedly connected to the top of the inner cavity of the reinforced metal shell 11 through the circular groove, a bolt head 14 is connected to the bottom of the inner wall of the sleeve 15 through a bolt, a modification plug 6 is fixedly connected to the lower surface of the bolt head 14, a connecting rod is fixedly connected to the upper surface of the bolt head 14, and when a user pressurizes the valve body through the device, clockwise rotation handle 4, rotation handle 4 slides down the bolt head 14 spiral through the connecting rod, the inner space of strengthening metal casing 11 this moment sharply reduces, inside natural gas liquid pressure boost, the reaction force increase of natural gas liquid to strengthening metal casing 11, pressure transducer 5 receives powerful effort this moment, expand rubber tube 12 and open, absorb the reaction force that natural gas liquid produced, reduce the osmotic pressure of natural gas liquid to repacking stopper 6, and then reduce the natural gas liquid and follow the possibility that repacking stopper 6 permeates to the external world, the condition of leaking has been avoided taking place to traditional valve self structure, the risk of leaking has been reduced, the security of valve has been improved.

The pressure converter 5 comprises a bolt 51, the outer surface of the bolt 51 is fixedly connected with the inner cavity of the reinforced metal shell 11 through an opening, the bottom end of the bolt 51 is fixedly connected with a slide rod 53, the outer surface of the slide rod 53 is sleeved with a strong spring 52, two sides of the outer surface of the slide rod 53 are both slidably connected with a twisting piece 54, the left side of the inner wall of the twisting piece 54 is fixedly connected with a rubber ring 55 through a perforation, two ends of the rubber ring 55 are both fixedly connected with the inner wall of the reinforced metal shell 11, the rubber ring 55 keeps a certain annular state under normal conditions, once the device is internally pressurized, the rubber ring 55 is compressed into an oval shape after being pressurized, at the moment, the strong spring 52 is restored to open the right side of the twisting piece 54, the rubber ring 55 pulls the periphery of the rubber cylinder 12 apart under the resultant force effect, so that the effective caliber of the rubber cylinder 12 is expanded, and the flow rate of the liquefied natural gas is larger, in the process, the inner wall of the rubber cylinder 12 buffers the reaction force generated by the liquefied natural gas, when the inside of the device is decompressed, the pressure received by the inner wall of the rubber cylinder 12 is reduced, the rubber ring 55 starts to recover, the right end of the twisting piece 54 extrudes the strong spring 52, the strong spring 52 stores elastic potential energy, and the rubber ring 55 can be compressed more quickly next time.

The modified plug 6 comprises a buckling piece 61, a slot 62 is formed in the bottom end of the buckling piece 61, a plug is fixedly connected to the top end of the buckling piece 61, a water baffle 64 is connected to the outer surface of the buckling piece 61 in a sliding mode, a fixing ring 63 is connected to the bottom end of the water baffle 64 in a rotating mode, the outer surface of the fixing ring 63 is connected with the inner wall of the reinforced metal shell 11 in a sliding mode, the modified plug 6 has two functions, the modified plug 6 only has a common piston effect under normal conditions, when a user rotates and rotates the handle 4 to extrude the modified plug 6 excessively, the buckling pieces of the modified plug 6 are clamped with each other to form an internal cylinder framework of the modified plug 6, on one hand, the user can be prevented from screwing excessively, on the other hand, the modified plug 6 with the cylinder framework is firmer, the strong pressure given by internal liquid can be effectively borne, and the section of the external water baffle 64 is in an acute triangle shape, the impact force given by the liquid can be effectively buffered.

The detection port 7 comprises a bottom sleeve 71, the outer surface of the bottom sleeve 71 is fixedly connected with the lower portion of the inner cavity of the reinforced metal shell 11, the front side of the bottom sleeve 71 is fixedly connected with a waterproof sleeve 72, the back of the waterproof sleeve 72 is fixedly connected with the inner wall of the reinforced metal shell 11, small holes are uniformly formed in the back of the inner cavity of the bottom sleeve 71, the back of the inner cavity of the bottom sleeve 71 is fixedly connected with a pressure relief pipe 8 through the small holes, and the outer surface of the bottom sleeve 71 is connected with a semicircular sleeve head 73 through bolts.

The pressure relief pipe 8 comprises a grooving barrel 81, the outer surface of the grooving barrel 81 is fixedly connected with the back of the inner cavity of the bottom sleeve 71 through a small hole, the inner cavity of the grooving barrel 81 is slidably connected with a plastic end 83, the upper surface of the grooving barrel 81 is fixedly connected with the lower part of the outer surface of the plastic end 83 through a limiting spring 82, a liquid outlet 84 is formed in the bottom of the inner cavity of the plastic end 83, the top end of the liquid outlet 84 penetrates through the inner wall of the plastic end 83, because the device is a valve for ultralow temperature filling, a user cannot easily touch the valve and is easy to have the risk of frostbite, but if the user wants to detect the liquid component in the valve, the valve has to be detached and detected, so that the detection work is more troublesome, at the moment, the user uses a professional tool to take the semicircular sleeve head 73 off from the bottom sleeve 71 to pressurize the valve, and the plastic end 83 slides down along the inner cavity of the grooving barrel 81 after being pressurized, the extrusion force that the bottom of plastics end 83 received reduces, and liquid outlet 84 grow under the effect of pressure, and liquid oozes from liquid outlet 84, and the inside liquid of valve can be collected under the circumstances of not dismantling the valve to the measurement personnel this moment, and then accomplish detection achievement, and is fairly convenient.

The specific working process is as follows:

when the user pressurizes through the device, clockwise rotation handle 4, rotation handle 4 slides down the bolt head 14 spiral through the connecting rod, strengthen the inner space of metal casing 11 this moment sharply and reduce, inside natural gas liquid pressure boost, natural gas liquid increases the reaction force of strengthening metal casing 11, pressure transducer 5 receives powerful effort this moment, expand rubber cylinder 12 and open, absorb the reaction force that natural gas liquid produced, reduce the osmotic pressure of natural gas liquid to repacking stopper 6, and then reduce the natural gas liquid and fill out the possibility to the external world from repacking stopper 6, it takes place the leakage condition to avoid traditional valve self structure, the risk of leaking has been reduced, the security of valve has been improved.

Repacking stopper 6 has two kinds of functions, 6 only play ordinary piston effects of repacking stopper under normal condition, when the person of receiving rotates rotatory handle 4 and will repack stopper 6 and excessively extrude, the buckle spare of repacking stopper 6 can joint each other, construct the inside drum skeleton of repacking stopper 6, can prevent the user on the one hand and excessively screw, on the other hand, the repacking stopper 6 that possess the drum skeleton is more firm, can effectively bear the powerful pressure that inside liquid gave, the 64 sections of breakwater of outside this moment are acute triangle-shaped shape, the impact force that can effectively cushion liquid and give.

Rubber ring 55 keeps certain annular state under normal conditions, in case the inside pressurization of device, rubber ring 55 is compressed into the ellipse after the pressurized, powerful spring 52 restores and opens the right side of hank piece 54 this moment, rubber ring 55 pulls open all around rubber tube 12 under the resultant force effect, and then expanded the effective bore of rubber tube 12, make liquefied natural gas's flow bigger, at this in-process, the inner wall of rubber tube 12 has cushioned the counter-acting force that liquefied natural gas produced, when the inside decompression of device, the pressure that the inner wall of rubber tube 12 received reduces, rubber ring 55 begins to restore, hank piece 54 right-hand member extrudes powerful spring 52, make powerful spring 52 store elastic potential energy, make rubber ring 55 can be compressed more fast next time.

Because the device is for an ultra-low temperature adds and uses the valve, the user can not touch easily, there is the risk of frostbite easily, but if want to detect the inside liquid composition of valve, have to dismantle the detection with the valve again, make detection achievement more troublesome, the user uses professional instrument to take off semicircle pullover 73 from end cover 71 this moment, pressurize the valve, plastics end 83 receives the inner chamber gliding along grooved tube 81 after pressure, the extrusion force that receives of plastics end 83's bottom reduces, liquid outlet 84 grow under the effect of pressure, liquid oozes from liquid outlet 84, the inside liquid of valve can be collected under the condition of not dismantling the valve this moment to the measurement personnel, and then accomplish detection achievement, it is fairly convenient.

While the present invention has been described with reference to the embodiments shown in the drawings, the present invention is not limited to the embodiments, which are illustrative and not restrictive, and it will be apparent to those skilled in the art that various changes and modifications can be made therein without departing from the spirit and scope of the invention as defined in the appended claims.