KR200297519Y1 - quick open and close pressure vessel cover device - Google Patents

Abstract

The present invention relates to a high pressure gas container cover opening and closing device for quickly opening or closing the cover of the high pressure gas container.

The present invention forms a cover fixing part on the container body, and constitutes a cover of the inner cover and the outer cover inside the cover fixing part, and the inner cover maintains airtightness by the O-ring of the joint surface of the cover fixing part which abuts it. , Has an outer cover for pressing the inner cover over the inner cover, the outer cover is composed of two semi-circular left and right parts, the semi-circular left and right outer cover is attached to the surface, respectively, the movement guide for rotating the screw shaft, screw connection When the screw shaft is rotated by combining the right and left screw shafts formed on the left and right sides with the center of the center as the screw shaft rotates, the left and right outer covers move symmetrically with each other so that the cover fixing part can be fixed and opened and closed. And semi-circular left and right outer cover is a high-pressure gas container cover opening and closing device having a configuration to be moved up and down by a vertical screw shaft It relates.

Description

Quick open and close pressure vessel cover device

The present invention relates to a high pressure gas container cover opening and closing device for quickly opening or closing the cover of the high pressure gas container.

In general, medical and industrial high-pressure gas such as oxygen or nitrogen, or fuel gas such as LPG or LNG maintains a low-temperature liquid state under high pressure, but the phase changes to a gaseous state at room temperature, and a tank for storing such high-pressure gas. B. The movable high pressure gas moving container has a rigid structure that can withstand gas pressure sufficiently, and the material used therein is also made of steel, and has a rigid structure that is not damaged or deformed by external shocks or vibrations. Moreover, in such a high pressure gas container or a structure, it can be seen that it has a cover etc. for checking the inside of a high pressure gas container periodically.

In particular, the gas pipe for transporting the gas for fuel, such as city gas, can be seen that a pressure vessel for filtration of city gas with a filter for removing foreign matter contained in the gas is installed. It can be seen that the gas pressure vessel is dismantled periodically to replace the internal filter.

However, the city gas purification pressure vessel incorporating the conventional gas filter can be seen to have a rigid structure that withstands the gas pressure by fastening and fixing the container body and the cover with a plurality of bolts and nuts like the normal high pressure gas container, but dismantle the cover Since many bolts and nuts had to be loosened in order to do so, it can be seen that it takes a lot of time and effort, and even after replacing the gas filter, the cover was removed and assembled by fixing the cover to the container body by using bolts and nuts. The present invention was developed in consideration of having a lot of difficulties in the present invention, the present invention is to dismantle and fasten the cover of the high-pressure gas container from the container body in a short time by a simple operation, there is a fear of gas leakage with a strong coupling structure when combined It is to provide an opening and closing device of the high-pressure gas container so that there is no.

The high pressure gas container has a solid material and a solid structure that can sufficiently cope with the high pressure gas pressure.

Therefore, the high-pressure gas container uses a steel plate having a sufficient thickness, and constitutes the body of the container with a structurally strong cylindrical or spherical shape, and has a disc shaped inspection window or an opening / closing cover for inspecting the inside of the container. It can be seen that a plurality of bolts and nuts are coupled to the integrally formed flange and the like.

Therefore, in order to open the inspection window or cover to inspect the inside of the high-pressure gas container, it was necessary to loosen and disassemble the bolts one by one, which requires a lot of time and effort, and the dismantled cover or inspection window is also made of steel plate. The present invention was developed in consideration of the heavy weight which cannot be easily lifted, and the cover is detached from the container body by simple operation, and the separated cover is provided with a lifting means for lifting it. It is provided to facilitate the inspection of high-pressure gas container, replacement of accessories such as gas filter, etc. The configuration thereof will be described in more detail as follows.

1-a perspective view of a state of covering the cover of the present invention on the container body.

Figure 2 is a cross-sectional view of the cover state of the subject innovation on the container body.

3 is a cross-sectional view of a state in which the cover and the container body of the present invention are fastened.

Figure 4 is a perspective view of a state in which the cover of the present invention is raised above the container body.

5 is a cross-sectional view of a state in which the cover of the present invention is raised on the container body.

6-Cross-sectional view of the cover of the present invention is rotated on the container body.

7 is a partial cross-sectional view of the cover is fixed on the container body, a state in which the pressure is applied to the inside of the container body to prevent the screw shaft from rotating.

8 is a partial cross-sectional view of the cover is fixed on the container body, the screw shaft is rotatable by releasing the pressure inside the container body.

Figure 9 is a cross-sectional view of another angle in a fixed state such that the screw shaft is not rotated in the present invention.

10 is a cross-sectional view of another angle of the screw shaft in a rotatable state in the present invention;

11 is a schematic perspective view of a conventional city gas filter vessel.

12 is a schematic exploded perspective view of a conventional city gas filter vessel.

In the high-pressure gas container having a cover for opening and closing the container on the container body, the container body 11 has a cover fixing portion 12 above, the cover fixing portion 12 inside the junction that the inner cover 21 abuts It has a border (13), the joining border (13) has a circular groove (14) into which the O-ring (15) is fitted, and the inner border of the cover fixing part (12) has a semicircular left and right outer cover (22) It has an outer cover fixing groove 16 to be fixed, and has a screw shaft central support portion 31 in the center of the inner cover 21, the screw shaft central support portion 31 has a right and a right screw thread left and right The central portion of the formed screw shaft 32 is sintered, and the left and right movement guides 25 which are integrally fixed to the semicircular left and right outer cover 22 on the left, right right and left threads of the screw shaft 32. ) Is coupled to the screw type, the inner side above the screw shaft central support portion 31 Ends of the vertical screw shaft 33 for moving the dog 21 and the semi-circular left and right outer cover 22 up and down are rotated freely, and the handle 34 and the end of the vertical screw shaft 33 are rotated. In the middle of the vertical screw shaft 33 has a rotary guide 42 for moving the vertical screw shaft 33 up and down, the rotary guide 42 has one side end of the support (41) of the "a" shape Attached, the other end of the "a" shaped support 41 is to be rotatably connected to the support shaft 44 of the support shaft support plate 43 protrudingly attached to the container body (11).

The screw shaft central support part 31 formed at the center of the inner cover 21 has a screw shaft between the lower restraint member 51 having the semicircular groove 52 and the upper restraint member 53 having the semicircular groove 54 thereon. 32 is fastened to each other by the bolts 55 after being fitted, and the upper preventive body cover 56 fastening the end of the vertical screw shaft 33 to the upper surface of the upper preventive body 53 by bolts 57. The left and right movement stop nuts 35 which prevent the movement of the screw shaft 32 from side to side are fixed to the left and right sides of the upper and lower supports 51 and 53 to which the screw shaft 32 is fitted. It is done.

In addition, the safety pin operating groove (32-2) is formed in the central portion of the screw shaft 32, the safety pin 27 having a spring 28 is fitted in the inner central portion of the inner cover 21 and the lower prevention member (31). It has a safety pin operation hole 26, the inlet of the safety pin operation hole 26 is fastened to the plug 29 having a pressure action hole (29-1), the safety pin (27) up and down to keep the airtight O-rings 30-1 and 30-2 and spring actuating plate 27-1 are provided.

In addition, when the present invention is used as a gas purification container on the city gas pipe line, the container body 11 has a filtration filter 61 inside, and the container body 11 includes an inlet pipe 62 and a gas inflowing gas. It has a gas exhaust pipe 63 for discharging, and each inlet pipe 62 and the exhaust pipe 63 has an inlet pipe open / close valve and an exhaust pipe open / close valve, respectively.

In the figure, reference numeral 64 denotes a drain valve.

Looking at the operation of the present invention having such a structure as follows.

The inner cover 31 abuts the joint edge 13 of the cover fixing part 12 above the container body 11 to seal the container body 11, and the screw shaft center which protrudes from the inner cover 21 center part. The screw shaft 32 rotatably installed on the branch 31 has a left-handed thread on the left side and a right-handed thread on the right side with the center of the center as the bolt head 32-1 formed on one side of the screw shaft 32. When the screw shaft 32 is rotated so that the movement guide 25 fastened to the left thread of the screw shaft 32 and the movement guide 25 fastened to the right thread are mutually based on the center of the screw shaft 32. Since the semicircular outer cover 22 attached to the left and right movement guide 25 is moved symmetrically with each other like the left and right movement guide 25, the left and right movement guides 25 are moved symmetrically.

Therefore, after matching the inner cover 21 on the cover fixing part 12 inner joining edge 13, when rotating the screw shaft 32 using the screw head 32-1 on one side of the screw shaft 32 When the right and left screw threads of the shaft 32 are rotated and the left and right movement guides 25 screwed thereto are moved outwards, the movement guides 25 are left and right semicircular and left attached to the same. , The right outer cover 22 is moved to the outside and the edge is coupled to the outer cover coupling groove 16 formed in the cover fixing portion 12 inner edge is to be fixed and coupled to the container body (11).

The ends of the edge of the semi-circular left and right outer cover 22 has a tapered edge 22-1, and the outer cover coupling recess 16 of the cover fixing part 12 is also tapered face 16-1. The tapered edge 22-1 of the semicircular left and right outer cover 22 is mounted on the tapered surface 16-1 of the coupling recess 16 so that the semicircular left and right outer cover 22 is coupled thereto. When the semi-circular left and right outer cover 22 lowers the inner cover 21 to enhance the adhesion between the inner cover 21 and the joining edge 13 of the cover fixing portion 12, the semi-circular left and right outer The cover 22 is fastened to the cover fixing portion and a firm binding force.

As described above, in order to open the inner cover 21 and the semicircular left and right outer cover 22 fixed to the cover fixing part 12 above the container body 11, a hand tool such as a spanner is used, but one side of the screw shaft 32 is used. The screw shaft 32 is rotated when the screw head (32-1) of the rotation in the opposite direction when the lock is to move the left, right movement guide (25) screwed to it inward, left, The semi-circular left and right outer cover 22, which is fixed integrally at the same time as the inner movement of the right movement guide 25, moves inward, and the left and right semi-circular outer cover 22 edges cover the outer cover of the fixing part 12. Out of the fixing groove 16 is released, the coupling state is released, then rotate the handle 34 of the end of the vertical screw shaft 33 to rotate the vertical screw shaft 33, the vertical screw shaft 33 is While moving up and down along the rotary guide 42, the inner cover 21 and the semi-circular left and right outer side left at the bottom of the vertical screw shaft 33 The dog 22 is raised at the same time becomes.

After both the inner cover 21 and the semicircular left and right outer cover 22 come out of the cover fixing part 12, the "a" type support 41 is rotated when the "a" type support 41 is rotated. Rotation of the support shaft 44 of the support shaft support plate 43 protruding from the container body 11 is to open the inlet of the container body (11).

As such, the present invention, when rotating the vertical screw shaft 33 with the handle 34 of the vertical screw shaft 33, the inner cover 21 and the semi-circular left and right outer cover that is left at the end of the vertical screw shaft 33 ( 22) can be easily moved up and down at the same time, when rotating the screw shaft 32 for opening and closing the semicircular left and right outer cover 22 with a hand tool such as a spanner, the semicircular left and right outer cover 22 and the container body (11) It is to provide a simple fastening structure that can easily disassemble the upper cover fixing portion 12.

In addition, the present invention has a safety device for fixing the screw shaft 32 for operating the semi-circular left and right outer cover 22 to the pressure inside the container body (11).

That is, when the cover of the container body 11 is to be opened, the gas inside the container body 11 must be discharged in advance to open the cover when there is no gas pressure of the container body 11, and when the cover is opened when the gas pressure is applied. It can develop into a large accident caused by a gas leak.

Therefore, the present invention has a safety device that prevents the screw shaft 32 that opens the semi-circular left and right outer cover 22 from operating when gas pressure acts on the inside of the container body 11.

That is, a safety pin operating hole 26 into which the spring 28 and the safety pin 27 are fitted is formed in the inner cover 21 and the inner central portion of the lower prevention member 31, and the inlet of the safety pin operating hole 26 is a pressure action hole. (29-1) having a stopper 29 formed, the safety pin 27 having a spring 28 is fitted with a safety device to be fitted into the safety pin operating groove (32-2) formed on the screw shaft (32) Will have

Such a safety device covers the inner cover 21 and the semicircular left and right outer cover 22 on the cover fixing part 12 on the container body 11, and then operates the screw shaft 32 to operate the semicircular left and right outer cover 22. Is fixed to the cover fixing part 12, and when the pressure is applied to the container body 11, the gas pressure is raised by pressing the safety pin 27 through the pressure action hole 29-1 of the stopper 29 to the safety pin (27) ) End of the screw shaft 32 is inserted into the safety pin operating groove 32-2 of the screw shaft 32 to fix the screw shaft 32 so as not to rotate.

However, when the gas pressure of the container body 11 is removed through the drain valve 64 or other valves, the safety pin 27 is lowered by the spring force of the spring 28 so that the end of the safety pin 27 is screw shaft 32. Out of the safety pin operating groove (32-2) of the screw shaft 32 to release the lock state is to enable the screw shaft (32) to rotate.

The safety pin 27 has upper and lower O-rings 30-1 and 30-2, and the spring actuating plate 27-1 at the bottom of the safety pin 27 is in contact with the inner circumferential surface of the safety pin operating hole 26. There is no gas leakage from the safety pin, ie the safety device.

The present invention is provided with a gas filter 61 inside the container body 11 to form a gas inlet pipe 62 for introducing gas into the container body 11 and a gas discharge pipe 63 for discharging the gas, respectively. When the on-off valves to open and close them are formed, the high-pressure gas filtration filter is simply to be used to provide a high-pressure gas container.

In general, the high-pressure gas container can be seen to combine the container body and the cover using a plurality of bolts and nuts.

As such, fastening the body and cover of the pressure vessel with a plurality of bolts and nuts prevents leakage of high pressure gas by maintaining a firm fastening force, but when developing a high pressure gas container to check the inside of the high pressure gas container, Since it is necessary to loosen and disassemble the bolts and nuts, it can be seen that much effort and time are required for this, but the present invention rotates the screw shaft when rotating the screw head provided at one end of the screw shaft, and the rotating screw shaft is coupled thereto. Move the guides symmetrically to each other to easily release the fixing between the cover fixing part and the semicircular left and right outer cover, and lift the inner cover and outer cover on the container body by rotating the vertical screw shaft with the handle of the vertical screw shaft. Simply open the container body and rotate the screw shaft with a simple hand tool to It can be easily opened and closed, and especially the present invention has a safety device that can not rotate the screw shaft opening the container cover when the gas pressure acts on the container body to prevent gas leakage and safety accidents that may be caused by this It is a very useful design that can be done.

Claims (4)

In the high-pressure gas container having a cover for opening and closing the container on the container body, having a cover fixing part 12 above the container body 11, the inner side of the cover fixing part 12 is joined to the inner cover 21 abuts It has a frame (13), the joining border (13) has a circular groove (14) into which the packing (15) is fitted, and the inner edge of the cover fixing part (12) has a semicircular left and right outer cover (22) It has an outer cover fixing groove 16 to be fixed, and has a screw shaft central support portion 31 in the center of the inner cover 21, the screw shaft central support portion 31 has a right and a right screw thread left and right The central portion of the formed screw shaft 32 is installed, and the left, right right and left screw threads of the screw shaft 32, the left and right movement guide which is fixed integrally with the semi-circular left and right outer cover 22 (25) is coupled to the screw type, the inner side above the screw shaft central support portion 31 Ends of the vertical screw shaft 33 for moving the cover 21 and the semicircular left and right outer cover 22 up and down are rotated freely, and the handle 34 and the end of the vertical screw shaft 33 are rotated freely. In the middle of the vertical screw shaft 33 has a rotary guide 42 for moving the vertical screw shaft 33 up and down, the rotary guide 42 has one side end of the support (41) of the "a" shape High pressure, characterized in that the other end of the "41" shaped support 41 is rotatably connected to the support shaft 44 of the support shaft support plate 43 protrudingly attached to the container body (11) Cover opening of the gas container. According to claim 1, wherein the screw shaft central support portion 31 formed in the center of the inner cover (21) is a lower prevention member (51) having a semicircular groove (52) and an upper prevention member (53) having a semicircular groove (54) thereon. After the central portion of the screw shaft 32 is inserted therebetween is fastened to each other by a bolt 55, the upper prevention member cover 56 bolts to the upper prevention member 53 to rotatably end the end of the vertical screw shaft 33 bolts. The left and right movement stop nut 35 which prevents the screw shaft 32 from moving from side to side on the right and left sides of the upper and lower prevention retainers 51 and 53 to which the screw shaft 32 is fitted, is fastened to (57). Cover opening and closing device of the high-pressure gas container, characterized in that the screw shaft 32 is fixed to the left and right. According to claim 1, wherein the container body 11 has a filtration filter 61 inside, the container body 11 has an inlet pipe 62 for introducing gas and a gas exhaust pipe 63 for discharging the gas, respectively The opening and closing device of the high pressure gas container, characterized in that the inlet pipe 62 and the exhaust pipe 63 of the inlet pipe opening and closing valve and the exhaust pipe opening and closing valve, respectively. The safety pin (27) of claim 1, wherein the safety pin operating groove (32-2) is formed at the center of the screw shaft (32), and the safety pin (27) has a spring (28) at the inner central portion of the inner cover (21) and the lower prevention member (31). ) Is fitted with a safety pin actuation hole 26, the inlet of the safety pin actuation hole 26 is fastened to the stopper 29 having a pressure acting hole (29-1), the safety pin 27 is kept airtight Cover opening and closing device of the high-pressure gas container, characterized in that it has an upper and lower o-ring (30-1) (30-2) and a spring action plate (27-1).