Classifications

• • G—PHYSICS
  • G01—MEASURING; TESTING
  • G01L—MEASURING FORCE, STRESS, TORQUE, WORK, MECHANICAL POWER, MECHANICAL EFFICIENCY, OR FLUID PRESSURE
  • G01L19/00—Details of, or accessories for, apparatus for measuring steady or quasi-steady pressure of a fluent medium insofar as such details or accessories are not special to particular types of pressure gauges
  • G01L19/0007—Fluidic connecting means
  • G01L19/0015—Fluidic connecting means using switching means
• • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
  • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
  • F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
  • F16K5/00—Plug valves; Taps or cocks comprising only cut-off apparatus having at least one of the sealing faces shaped as a more or less complete surface of a solid of revolution, the opening and closing movement being predominantly rotary
  • F16K5/06—Plug valves; Taps or cocks comprising only cut-off apparatus having at least one of the sealing faces shaped as a more or less complete surface of a solid of revolution, the opening and closing movement being predominantly rotary with plugs having spherical surfaces; Packings therefor
  • F16K5/0663—Packings
  • F16K5/0668—Single packings

Definitions

• the present invention relates to a gas pipe used for evacuating and sealing a gas-tight container and monitoring the internal pressure of the container using a pressure gauge.
• a conventional gas pipe is configured by fastening a commercially available on-off valve or an adapter having a supply / exhaust section with a pressure gauge, a packing, a nut, a pipe, or the like.
• the present invention solves the above-described problems, and consolidates the functions of opening and closing and air supply and exhaust, which are necessary functions in a gas pipe, into one part, thereby reducing external dimensions and cost.
• An object of the present invention is to provide a gas pipe block and a gas pipe using the block, which are made possible.
• the gas pipe block according to the present invention may include a pressure gauge mounting portion for mounting a gas pressure gauge, a gas supply / exhaust portion for supplying / exhausting gas from outside, and a gas switching component at different positions on the outer surface. And a working hole for inserting a handle for operating a gas opening / closing part which has a communication passage communicating with the storage space and which is externally inserted into the storage space.
• a gas passage communicating with the pressure gauge mounting portion, the air supply / exhaust portion, and the storage space is formed in the inside.
• the gas switching part of the present invention is a valve stem used together with the gas piping block of the present invention, and comprises a cylindrical first cylindrical body and a concentric circle with the first cylindrical body.
• a second cylindrical body having a radius larger than the radius of the first cylindrical body and connected to the first cylindrical body, and a packing on the outer peripheral surface of the first cylindrical body. And a threaded part for screwing and screwing into the threaded part formed in the work hole of the piping block to rotate and slide. It is configured.
• Another gas opening / closing part according to the present invention is a ball valve used together with the gas pipe block according to the present invention, wherein the whole is formed into a spherical shape, has a through hole in the center, and has a spherical side surface. It is configured to have a groove to be fitted with a turning operation handle.
• a pressure gauge mounting portion for mounting a gas pressure gauge, a gas supply / exhaust portion for supplying / exhausting gas from outside, and a gas opening / closing part may be inserted at different positions on the outer surface.
• a storage space provided with an adapter mounting portion for mounting an adapter having a pipe connection function, and a communication passage communicating with the storage space, for opening and closing gas which is externally inserted into the storage space.
• a work hole for inserting a handle for operating the part is provided.
• a supply / exhaust part Inside the pressure gauge mounting part, a supply / exhaust part, A gas pipe block in which a gas passage communicating with the storage space is formed, a gas opening / closing part that is inserted into the storage space and opens and closes the gas passage, and a pressure attached to the pressure gauge mounting portion. And an adapter having a pipe connection function mounted on the adapter mounting section, and a pipe mounted on the pipe connection section of the adapter.
• the functions of opening and closing the ventilation section and the functions of supplying and exhausting gas to and from the gas-tight container, which are functions necessary for the gas pipe, can be integrated into one component, so that the outer dimensions of the gas pipe can be reduced. it can.
• FIG. 1 is a configuration diagram of a gas pipe according to Embodiment 1 of the present invention.
• FIG. 2 is a configuration diagram of a gas pipe block according to Embodiment 1 of the present invention.
• FIG. 3 is a front view, a rear view, and a side sectional view of the valve stem according to Embodiment 1 of the present invention.
• FIG. 4 is a perspective view of the valve stem according to Embodiment 1 of the present invention.
• FIG. 5 is a partially enlarged view of a valve stem according to Embodiment 1 of the present invention.
• FIG. 6 is a configuration diagram of a gas pipe according to Embodiment 2 of the present invention, and shows a state in which a gas passage is closed.
• FIG. 7 is a diagram showing a main part of a gas pipe according to Embodiment 2 of the present invention, and is a diagram showing a gas passage in an open state.
• FIG. 8 is a perspective view showing an example of a ball valve according to Embodiment 2 of the present invention.
• FIG. 9 is a perspective view showing an example of a spacer according to Embodiment 2 of the present invention.
• FIGS. 1 to 5 show a gas pipe, a block for gas pipes, and a gas switching part according to Embodiment 1 of the present invention.
• the same reference numerals indicate the same or corresponding parts.
• FIG. 1 shows the overall configuration of a gas pipe according to Embodiment 1 of the present invention.
• FIG. 1 (a) is a front view
• FIG. 1 (b) is a sectional view of FIG. 1 (a). It is a side sectional view in the A line.
• a pressure gauge 9 is connected to a pressure gauge mounting portion 2 of a gas pipe block 1 (the details of the gas pipe block will be described later with reference to FIG. 2) via a nut 10.
• An adapter 11 for connecting the gas pipe block 1 and a pipe (not shown) is connected to the adapter mounting portion 4 of the gas pipe block 1.
• the pipe connection 18 of the adapter 11 is connected to a pipe (not shown) connected to a gas-tight container (for example, a tank, not shown).
• valve stem 12 as a gas opening / closing part having a packing 13 disposed in a groove is inserted. (The details of this valve stem will be described later with reference to FIGS. 3 to 5.)
• valve stem 12 When a handle (not shown) is inserted through the work hole 7 of the piping block 1 and the end of the handle is fitted to the flat portion of the valve stem 12, the valve stem 12 can be rotated.
• valve rod 12 slides in the axial direction by the screw portion 8 inside the gas pipe block 1, and the through hole 5 as the gas passage can be closed and opened. That is, when the outer circumference of the end face 17 of the valve stem comes into contact with the bottom surface of the storage space 6, the through hole 5 is closed at the contact surface. (Fig. 1 shows the through hole 5 closed.)
• gas pipe block 1 used for the above-described gas pipe will be described in detail.
• FIG. 2 is a configuration diagram of a block for a gas pipe.
• FIG. 2 (a) is a front view
• FIG. 2 (b) is a side sectional view taken along line AA of FIG. 2 (a).
• a gas piping block 1 is made of, for example, a metal cube such as brass or aluminum, and has a pressure gauge mounting portion 2 for mounting a pressure gauge on each outer surface and an externally mounted pressure gauge mounting portion.
• a supply / exhaust section 3 for supplying / exhausting gas is provided, and a storage space 6 in which a valve stem as a gas opening / closing part can be inserted.
• a through hole 5 is formed inside the cube to form a gas passage by connecting the pressure gauge mounting section 2, the air supply / exhaust section 3, and the storage space 6.
• a work hole 7 for inserting a handle (not shown) for operating the valve stem 12 is provided on a side of the cube facing the storage space 6.
• the work hole 7 is provided in the storage space 6. It has a communication passage that penetrates to the storage space and communicates linearly with the cable.
• the storage space 6 is provided with an adapter mounting portion 4 for mounting an adapter 11 having a function of connecting piping.
• valve stem which is a gas opening / closing component used together with the above-described gas piping block 1 will be described.
• FIG. 3 shows a valve stem according to the first embodiment of the present invention.
• Fig. 3 (a) is a front view
• Fig. 3 (c) is a rear view
• Fig. 3 (b) is a third view.
• FIG. 3 is a side sectional view taken along line AA in FIG.
• FIG. 4 is a perspective view of the valve stem
• FIG. 5 is a partially enlarged view of a portion X in FIG. 3 (b).
• valve stem 12 has a cylindrical first cylindrical body 12 A and a concentric circle with the first cylindrical body 12 A. Than the radius of And a second cylindrical body 12B having a large radius and connected to the first cylindrical body.
• a groove 14 for inserting the packing 13 and a screw portion 15 for rotating and sliding are formed on the curved side surface of the first cylindrical body 12 A of the valve stem 12. . Further, as shown in FIG. 5, the end surface of the second cylindrical body 1 2B is formed at a portion where the first cylindrical body 12A and the second cylindrical body 12B having different radii are connected. 7 is configured such that the angle formed by the center axis of the valve stem is smaller than a right angle by ⁇ °, that is, an acute angle.
• both ends of the valve stem 12 are cut so as to have a width across flats 16 respectively.
• One of the two flat portions 16 A is used to fit a handle for rotating the valve stem 12.
• the other width across flats, 16 mm is used to secure the ventilation without blocking the through hole 5 when the valve stem 12 slides inside the gas piping block 1 and comes into contact with the adapter 11. Is provided.
• the gas piping block 1 has the functions of opening and closing the ventilation section and supplying and exhausting gas to and from the gas-tight container. Can be reduced compared to conventional gas piping.
• gas piping block, valve stem and adapter which constitute the gas piping, all have a small external shape and can be manufactured by general machining, so that the cost can be reduced.
• FIGS. 6 to 9 show a gas pipe, a gas pipe block, and gas switching parts according to Embodiment 2 of the present invention.
• the storage space 6 of the gas pipe block 1 is provided at a position different from that of the first embodiment. It is configured to use a ball valve as a closing part.
• the pole valve 19 used in the second embodiment is made of a metal (for example, brass or aluminum), is formed into a substantially spherical shape, and has a through hole 2 serving as a gas passage in the center. 2 and a groove 21 parallel to the through hole 22.
• a metal for example, brass or aluminum
• the storage space 6 for the gas pipe block 1 is provided on the side (the lower surface in the figure) where the direction of entry of the pole vanoleb intersects the communication path of the work hole 7.
• the gas pipe of the second embodiment has a substantially spherical pole valve 19 in the storage space 6 of the gas pipe block 1 and a groove 21 provided in the side face. Inserted to work hole 7.
• the ball valve 19 is formed by molding a resin (for example, Teflon) into a cylindrical shape, and by using a spacer 20 having a chamfered inside of one end surface, the storage space 6 is formed. It is arranged so as to sandwich it in the depth direction. Then, an adapter 11 having a function of connecting a pipe is attached to the adapter attaching section 4, a pressure gauge 9 is attached to the pressure gauge attaching section 2, and a pipe is connected to the pipe connecting section 18 of the adapter 11 (not shown). Is installed.
• a resin for example, Teflon
• Lubricating oil is applied between the ball valve 19 and the spacer 20.
• a handle (not shown) is inserted through the work hole 7 of the gas piping block 1, and the tip of the handle is attached to the ball.
• the ball valve 19 can be rotated.
• the through hole 22 of the pole valve 19 becomes almost perpendicular to the through hole 5 inside the gas pipe block 1
• Hole 5 is opened (state in Fig. 7).
• the functions of opening and closing the ventilation section and supplying and exhausting gas to and from the gas-tight container are integrated in the gas pipe block 1.
• gas piping blocks, adapters, ball valves, spacers, etc. that make up the gas piping are all small in size and can be manufactured by general machining, thereby reducing costs.
• the present invention can be used for gas piping in general, such as a gas insulated switchgear, and is highly applicable.

Landscapes

• Engineering & Computer Science (AREA)
• General Engineering & Computer Science (AREA)
• Mechanical Engineering (AREA)
• Physics & Mathematics (AREA)
• General Physics & Mathematics (AREA)
• Valve Housings (AREA)
• Taps Or Cocks (AREA)
• Examining Or Testing Airtightness (AREA)
• Measuring Fluid Pressure (AREA)

Priority Applications (4)

Applications Claiming Priority (1)

Publications (1)

Family

ID=34717654

Family Applications (1)

Country Status (4)

Cited By (1)

Families Citing this family (2)

Citations (3)

Family Cites Families (5)

• 2003
  • 2003-12-25 WO PCT/JP2003/016661 patent/WO2005064304A1/ja active Application Filing
  • 2003-12-25 CN CN200380110310.9A patent/CN1771432A/zh active Pending
  • 2003-12-25 JP JP2005512791A patent/JP4566131B2/ja not_active Expired - Fee Related
• 2004
  • 2004-04-01 TW TW093109028A patent/TWI252287B/zh not_active IP Right Cessation

Patent Citations (3)

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