JP6251493B2 - Piping structure - Google Patents

Description

  The present invention relates to a gas piping structure in a facility that intensively uses a plurality of types of medical gas, such as an operating room or an intensive care unit.

  Conventionally, in each facility such as an operating room or an intensive care unit in a hospital or the like, a plurality of types of gases such as oxygen gas, laughing gas, and compressed air are used depending on the purpose. In order to supply these gases, the piping from a gas supply source such as a gas cylinder to each facility includes a main gas pipe having a large diameter directly connected to the gas supply source, and a predetermined position of each facility from the main gas pipe. And a branch pipe that is branched and piped up to is used. And the outlet (piping terminal) provided with the various connectors is provided in the predetermined position of each chamber. In addition, the branch pipe is generally connected to a plurality of straight pipes cut to a required length by connecting them with elbow pipes or joints.

  For this reason, piping work, such as the design and various processing of the arrangement of straight pipes and elbow pipes, and joint work in the field, requires a lot of labor and time, which has been a factor of high costs. In addition, the possibility of gas leakage from the joint portion was high.

  Therefore, for example, as disclosed in Patent Document 1, it has been proposed to branch-connect from the main gas pipe of medical gas to the outlet of each facility by a flexible gas pipe without joints and joints.

JP 2002-147648 A

  However, in the technique disclosed in the same document, a wound copper pipe is used as a flexible gas pipe. It is necessary to improve workability, such as the need to do. In addition, a wound copper tube is originally preferable from the viewpoint of durability, workability, and airtightness, but there is a problem that it may be corroded depending on the gas used.

  Although it is possible to use a copper tube with an outer layer film, in this case, since the outer layer film melts when brazed, it is necessary to paint and color it again. Furthermore, in the case of a copper tube with an outer layer film, the outer layer film does not follow and tears at the bent portion, and it is necessary to paint and color that portion as well.

  The present invention has been invented in view of such circumstances, and uses a composite pipe having a resin layer at least on the outside as a material of the pipe, and further pipes the pipe in an endless loop shape from a required portion to make a cheese. The piping structure is obtained by branching to obtain input and output.

In order to solve the above-described problem, the piping structure according to the present invention has one gas pipe made of a composite pipe arranged in an endless loop along the outer wall surface of a facility that uses a plurality of types of gas. Attach the input cheese in the middle of the pipeline and supply the gas from the main gas pipe, attach multiple output cheeses in the middle of the same pipeline, and branch connect to the outlet provided on the inner wall surface of the facility A means of supplying gas was adopted.

  And the said composite pipe | tube employ | adopted the means that it is a three-layer pipe | tube which coat | covers the inner side and outer side of an aluminum pipe with resin.

  Or the means that the said composite pipe | tube is a double layer pipe | tube which coat | covers the outer side of a metal pipe with resin.

  And the means that the wall thickness of the outer side resin layer of this two-layer pipe | tube is 0.25-3.0 mm was employ | adopted.

  Alternatively, as another means, a means is adopted in which the composite pipe is a double-layer pipe made of a pipe made of copper on the inside and made of aluminum on the outside.

  Furthermore, a means was adopted in which the composite pipe was a double-layer pipe made of aluminum on the inside and copper on the outside.

  And in these piping structures, the connection with the input cheese and the output cheese was made by a one-touch connection joint.

  According to such a piping structure, a constant pressure gas is evenly supplied to the loop-shaped gas piping, so that the same stable gas pressure can be obtained even if the gas is branched from the arbitrary position via the output cheese. Can do.

Moreover, the gas piping employ | adopted the means of arrange | positioning so that the gas piping of a some unit may be arranged in parallel in the orthogonal | vertical direction.

  And in this case, while forming a mounting frame formed by arranging and fixing a plurality of output cheeses on a frame having a π-shaped cross section and fixing it to the outer wall surface of the facility in the vertical direction, the output side of each cheese The means of passing through and exposing the connecting joint to the inner wall surface side was adopted.

  In addition, the outer layer of the composite tube is colored by setting a color for each type of gas so that the type of gas can be identified by the color.

  According to the piping structure of the present invention according to the above configuration, each unit of gas piping is piped in an endless loop so as to surround the facility using a composite pipe, and one input cheese and one or more outputs are provided on the pipe line. As the cheese is connected, the gas pressure in the pipe line is always maintained evenly, and it can be expected to have an excellent effect that it can supply a gas with a constant and stable pressure regardless of which output cheese is opened. It is.

  In this case, the connection can be established by using a composite pipe such as a three-layer pipe in which the inner and outer sides of an aluminum pipe are coated with resin or a two-layer pipe in which the outer side of a metal pipe is coated with resin. Since it can be performed with a one-touch connection joint and bending is easy, there is an advantage that the piping work can be performed very easily and the construction and management of the facility are facilitated. And, since the brazing operation can be omitted by using the one-touch joint in this way, the trouble of painting and coloring again is eliminated by melting the outer layer film, for example, as in a conventional copper tube with an outer layer film. be able to.

  Also, when using composite pipes such as double-layer pipes made of copper on the inside and aluminum pipes on the outside, or double-layer pipes made of aluminum on the inside and copper pipes on the outside, copper should be highly malleable. Therefore, aluminum is lightweight and tough, and the overall weight of the piping structure can be reduced.

  On the other hand, when performing gas piping of a plurality of units in parallel in the vertical direction, by forming a mounting frame body in which a plurality of output cheeses are arranged and fixed on the frame body, a connection joint on the output side of the output cheese Can be directly used as the outlet, so that the piping connection between the output cheese and the outlet can be omitted. Thereby, cost reduction can be aimed at.

  And by using a composite pipe made by coating a metal pipe with a resin for each pipe, it is easy to connect and bend, and the outer resin layer is colored with a color set for each type of gas. As a result, the gas used can be easily identified, and the effect of reliably preventing accidents due to misidentification can be expected, and the aesthetics are improved.

It is a perspective view showing the outline of the whole piping structure concerning the present invention. It is also a plan view. It is explanatory drawing which shows the specific example of the cheese part of piping. It is a perspective view which shows other embodiment of a piping structure. It is also a plan view. It is the side view and top view of an attachment frame body of cheese. It is a perspective view which shows the example of the structure of a three-layer pipe.

  Hereinafter, the piping structure according to the present invention will be described with reference to some preferred embodiments shown in the drawings.

  In FIGS. 1 and 2, (R) is a facility that requires a plurality of types of gas such as an operating room or an intensive care unit, and one gas pipe 1 is formed in an endless loop along its outer wall surface (W). A plurality of units of gas pipes 1, 1,... Are disposed as a unit unit. As an example of the composite pipe, the gas pipe 1 is composed of, for example, a bendable three-layer pipe in which an inner side and an outer side of an aluminum pipe are covered with a resin. In the figure, eight are arranged so as to surround the facility (R). 2 is an input cheese having a one-touch joint, which is attached to the loop-shaped gas pipe 1 through this one-touch joint, and a copper pipe (P) branched from a main gas pipe (not shown), A required gas is supplied into the gas pipe 1 by connecting an open / close valve 3 with an appropriate joint in the middle.

  4, 4... Are output cheeses having one-touch joints, which are attached to the loop-shaped gas pipe 1 through the one-touch joints, and the branched output side is copper tube conversion joints 5, 5 Is connected to an existing outlet (pipe terminal) (O) via. This outlet is provided with a connection joint for each type of gas and is conventionally used. Therefore, the copper pipe conversion joint 5 is interposed in order to connect the gas pipe 1 of the three-layer pipe to the existing joint of the outlet (O).

  Moreover, this outlet can be provided in the arbitrary several places of the inner wall of a facility (R) as needed. Further, as shown in the figure, it is possible to provide an outlet on the ceiling. Similarly to the above, an outlet cheese 4 ′, 4 ′,... Connect to the ceiling outlet (O) with gas piping. Also in this case, a copper pipe conversion joint 5 'is interposed.

  Thus, the gas branched and supplied from the main gas pipe is always supplied to the loop-shaped gas pipe 1 and can be branched and output from the arbitrary position of the gas pipe 1 via the cheese 4. In that case, the output can be obtained with the same gas pressure regardless of the location and number of branches due to the nature of the loop shape.

  FIG. 3 shows an example of specific means for piping the gas pipes 1 in parallel. In FIG. 2A, an L-shaped angle 6 is attached to the outer wall surface (W), and the cheese 4 is attached to the lower surface of the horizontal basket using an appropriate attachment band 7. In FIG. (B), it is attached directly to the ceiling surface using an appropriate attachment band 7. In FIG. (C), when piping to the ceiling, it is attached to the upper surface of the horizontal rod of the L-shaped angle 6 attached to the outer wall surface (W) using an appropriate attachment band 7 '. Of course, in addition to the cheese portion, the gas piping is instructed with appropriate bands 8, 8,... So that the gas piping is not loosened even in the middle of the pipeline.

  Next, in FIGS. 4 and 5 which are other embodiments, three to three units are arranged along the outer wall surface (W) of a facility (R) that requires various gases such as an operating room and an intensive care unit. It is the same that the gas pipes 11, 11... Made of layer pipes are arranged in an endless loop shape, but in this embodiment, the gas pipes 11 are arranged in parallel in the vertical direction (eight in this figure). Is arranged so as to surround. Reference numeral 12 denotes an input cheese having a one-touch joint, which is attached to the loop-shaped gas pipe 11 through the one-touch joint, and a copper pipe branched from a main gas pipe (not shown) is appropriately placed in the middle. The open / close valve 13 is connected by a simple joint, and the required gas is supplied into the gas pipe 11.

  14 and 14 are cheeses for output, but the output side penetrates the wall of the facility to directly expose the connection joint in the room. That is, as shown in FIG. 6, for example, a mounting frame 15 in which a plurality of cheeses 14, 14. It is made to fix to a wall surface, and the connection joint of the output side of each cheese penetrated and exposed to the inner wall surface is made to function as an outlet. Thereby, it is possible to attach a plurality of cheeses 14 at a time, and the construction becomes easy. The attachment frame body 15 having this cheese can be attached to any location in the middle of the gas pipe 11, and the outlet can be installed at any location in the facility as required. Although not shown, it can be provided on the ceiling as in the previous example.

  In each of the above embodiments, a three-layer pipe formed by coating the inside and the outside of an aluminum pipe with a resin is used as an example of a composite pipe for gas piping. For example, as shown in FIG. 7, this three-layer tube has a three-layer structure in which a reinforced aluminum pipe 31 having both flexibility and toughness is coated with high heat-resistant polyethylene 32 and 33 on the inside and outside. It is easy to handle and strong. That is, it has excellent stretch characteristics, hardly stretches or bends, has excellent elastic characteristics, can be bent easily, does not repel even when bent, and maintains its bent shape. Moreover, since the bending radius is small, handling is easy and the installation location is not selected. In addition, resin which coat | covers the inner side and outer side of a pipe is not limited to high heat-resistant polyethylene, Various resin can be employ | adopted as needed.

  Moreover, as a composite pipe, a two-layer pipe formed by coating the outside of a metal pipe such as copper with a resin may be used. The two-layer pipe having such a configuration also has substantially the same characteristics as the three-layer pipe, has excellent flexibility and toughness, and is easy to handle such as bending. And it is preferable that the thickness of the outer side resin layer of this two-layer pipe is about 0.25 mm to 3.0 mm. This is because, if it has only a very thin wall thickness, like a conventional copper tube with a retrofitted film, it will not be able to bend and will tear, so it will need to be painted and colored again. It was because it required.

  In addition, as the composite pipe, there may be used a composite pipe such as a double-layer pipe made of a copper pipe on the inside and an aluminum pipe on the outside, or a double-layer pipe made of a pipe made of aluminum on the inside and copper on the outside. The double-layer pipe with such a structure is excellent in malleability of copper, so it is flexible and tough, easy to bend, and aluminum is lightweight and tough. Contribute to.

  And when these composite pipes are used, it is possible to connect by simply inserting them by using a one-touch joint or appropriate joint, etc., so construction is easy, workability and workability are excellent, and work time can be shortened. It is. Further, since the outer layer is not melted by brazing, it is not necessary to perform post-treatment such as painting and coloring.

  Also, since the resin layer on the outer surface is easy to color, if the color to be used for each gas type is set in advance, the gas type can be easily identified by that color, thus preventing misidentification. be able to. In addition, aesthetics are also improved.

1 Gas piping 2 Input cheese 3 Open / close valve 4, 4 'Output cheese
5 Copper tube conversion joint 6 L-shaped angle 7 Mounting band 8 Band 11 Gas piping 12 Input cheese 13 Opening valve 14 Output cheese 15 Mounting frame 15a Frame 31 Reinforced aluminum pipes 32, 33 Heat resistant polyethylene

Claims (8)

Along the outer wall of a facility that uses multiple types of gas, a single gas pipe consisting of a composite pipe is placed in an endless loop, and input cheese is attached to the middle of the pipe from the main gas pipe. A plurality of cheeses for output are attached in the middle of the same pipeline, and the gas is supplied by branch connection to an outlet provided on the inner wall surface of the facility. The unit gas pipes are arranged in parallel in the vertical direction so as to surround the facility, while the plurality of output cheeses are arranged and fixed on a frame having a π-shaped cross section to form an attachment frame. A piping structure characterized by being fixed to an outer wall surface of a facility in a vertical direction and having an outlet by passing through and exposing a connection joint on the output side of each cheese to the inner wall surface side. Composite pipe, the pipe structure according to claim 1, wherein the inner and outer aluminum pipe is a three-layered tube formed by coating a resin. Composite pipe, the pipe structure according to claim 1, wherein a two-layer tube made by coating the outside of the metal pipe with the resin. The piping structure according to claim 3 , wherein the thickness of the outer resin layer of the two-layer pipe is 0.25 to 3.0 mm. Composite pipe, the pipe structure according to claim 1, wherein inner copper, a two-layer tube outer is made of an aluminum pipe. Composite tube, inside aluminum piping structure according to claim 1, wherein the outer is a two-layer tube made of copper pipe. The piping structure according to any one of claims 1 to 6 , wherein the input cheese and the output cheese are connected by a one-touch connection joint. The piping structure according to any one of claims 1 to 7 , wherein the outer layer of the composite pipe is colored by setting a color for each type of gas so that the type of gas can be identified by the color.

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