JP2019060432A - Instrument mount member and instrument mounting method - Google Patents

Abstract

To provide an instrument mount member that can install an instrument in an optional position after constructing hot water piping by suppressing a distance of main pipe between an outer peripheral surface to an instrument to a short length.SOLUTION: An instrument mount member includes: a base part 10 constituting cold hot water piping and connected to part in a circumferential direction in a main pipe 15 through which liquid flows; a communication pipe 11 projecting from the base part 10, of which inside can communicate to the main pipe 15; and a screw member 12 fixed to a tip part of the communication pipe 11.SELECTED DRAWING: Figure 2

Description

  The present invention relates to an instrument mounting member and a method of mounting a meter.

Conventionally, for example, cold and hot water piping of an air conditioner constituted by a main pipe through which liquid flows inside as shown in Patent Document 1 below is known.
In such cold and warm water piping, in order to grasp the pressure and the like of the liquid in the main pipe, an instrument is attached to the main pipe. In this case, the outer diameter of the main pipe is gradually reduced by joining a plurality of joints to the main pipe in accordance with the outer diameter of the mounting portion of the meter, and the tip of the thus reduced diameter joint Attach the meter to the screw provided on the.

JP, 2016-217426, A

However, in the conventional cold / hot water piping, when a plurality of joints are joined to reduce the diameter of the main pipe, for example, the distance from the outer peripheral surface of the main pipe to the meter is long. There is a problem that the installation of the instrument becomes difficult when the space is not secured.
Moreover, when it became necessary to attach an instrument after construction of cold / hot water piping, it was necessary to remove the constructed piping and construct a plurality of joints.

  This invention is made in view of the situation mentioned above, Comprising: The meter which can be installed in arbitrary positions after construction of warm water piping by restraining the distance from the outer peripheral surface of a main pipe to a meter short. It aims to provide a mounting member.

In order to solve the above-mentioned subject, the present invention proposes the following means.
The instrument mounting member according to the present invention constitutes a cold and hot water pipe, and a base connected to a part of a main pipe through which liquid flows in the circumferential direction, protrudes from the base, and the inside can communicate with the main pipe A communication pipe, and a screw member fixed to a tip of the communication pipe.

  Further, the method of mounting the meter according to the present invention is a method of mounting the meter to mount a meter by using the above-mentioned meter mounting member with respect to a main pipe which constitutes a cold and hot water piping and in which liquid flows inside. After the base connecting step of connecting the base to a part of the main pipe in the circumferential direction, the drilling step of drilling the main pipe from the inside of the communicating pipe after the base connecting step, and the drilling step And a step of attaching an instrument to the screw member.

According to these inventions, since the communication pipe whose screw member is fixed to the tip end projects from the base connected to a part of the main pipe in the circumferential direction, by attaching a meter to this screw member The meter can be attached to the main pipe without using a joint or the like. For this reason, compared with the structure which joins a some coupling | joint, for example and diameter-reduces a main pipe, the distance from the outer peripheral surface of a main pipe to a meter can be restrained short. Thereby, a meter can be installed in arbitrary positions after construction of cold / hot water piping.
Moreover, since the screw member is fixed in advance to the tip of the communicating pipe, there is no need to join the joint provided with the screw member to the main pipe in addition to the work of connecting the base to the main pipe. Work can be simplified.

  The screw member may be fitted inside the distal end portion of the communication pipe.

  In this case, the number of parts can be reduced and the distance from the outer peripheral surface of the main pipe to the meter can be reduced, as compared with a configuration in which the screw member is fixed to the tip of the communicating pipe via other members such as a joint. It can be kept short more effectively.

  The amount of projection from the outer peripheral surface of the main pipe at the tip end of the screw member may be 170 mm or less.

  In this case, the distance from the outer peripheral surface of the main pipe to the meter can be reliably reduced.

  ADVANTAGE OF THE INVENTION According to this invention, a meter can be installed in arbitrary positions after construction of cold / hot water piping by restraining the distance from the outer peripheral surface of a main pipe to a meter short.

It is the schematic of the air conditioner provided with the hot and cold water piping in which the meter attachment member of this invention is used. It is a side view in a meter attaching member concerning a 1st embodiment of the present invention. It is a side view of a meter attachment member concerning a 2nd embodiment of the present invention. It is a side view of a meter attaching member concerning a comparative example.

First Embodiment
Hereinafter, an instrument mounting member 1 according to a first embodiment of the present invention will be described with reference to FIGS. 1 and 2. The drawings used in the following description are schematic, and the length, width, thickness ratio, etc. are not necessarily the same as the actual ones, and can be changed as appropriate.

As shown in FIG. 1, the instrument mounting member 1 according to the present embodiment constitutes a hot and cold water piping 50 of the air conditioner 100 and is connected to a main pipe 15 through which liquid flows. A flowmeter or a pressure gauge as a meter 30 is attached to the main pipe 15 in order to grasp the state of the liquid flowing inward.
Here, first, the air conditioner 100 provided with the hot and cold water piping 50 will be described.

  As shown in FIG. 1, the air conditioner 100 includes a hot water boiler 60, a refrigerator 70, a fan coil unit 80, an air handling unit (AHU) 90, an expansion tank 95, and a cooling tower 110 in addition to hot and cold water piping 50. ing. The whole of the pipeline for transporting the cold / hot water which enters and exits the cooling tower 110 is constituted by the main pipe 15. In the following description, the direction along the tube axis O of the main pipe 15 is referred to as the axial direction, the direction orthogonal to the tube axis O is referred to as the radial direction, and the direction around the tube axis O is referred to as the circumferential direction.

The main pipe 15 includes an inner layer, an intermediate layer, and an outer layer. The inner layer is located radially inward. The middle layer and the outer layer are laminated in this order on the outer peripheral surface of the inner layer.
The inner layer and the outer layer are formed of, for example, a polyolefin resin material such as polybutene resin, high density polyethylene resin, medium density polyethylene resin, and polypropylene resin.
The middle layer is a fiber reinforced layer and is formed of a polyolefin resin material and glass fiber. The main pipe 15 is provided with strength because the intermediate layer is a fiber reinforced layer containing glass fibers.

Moreover, the main pipe 15 is equipped with the functional layer laminated | stacked the outer side of the radial direction of an outer layer. The functional layer comprises an adhesive layer and a gas barrier layer. The adhesive layer and the gas barrier layer are laminated in this order on the outer peripheral surface of the outer layer.
The adhesive layer bonds the gas barrier layer to the outer peripheral surface of the outer layer of the main pipe 15. The gas barrier layer contains a gas barrier resin and provides the main tube 15 with gas barrier properties.

The thickness of the adhesive layer is, for example, 50 μm or more, preferably 75 μm or more and 200 μm or less, preferably 150 μm or less. The thickness of the adhesive layer is not limited to such an embodiment, and can be arbitrarily changed.
The thickness of the gas barrier layer is, for example, 75 μm or more, preferably 100 μm or more and 200 μm or less, preferably 150 μm or less. The thickness of the gas barrier layer is not limited to such an embodiment, and can be arbitrarily changed. Moreover, the main pipe 15 does not need to be equipped with a functional layer.

In the present embodiment, the instrument mounting member 1 is a screw fixed to the distal end portion of the communication pipe 11 and the base 10 connected to a part of the main pipe 15 in the circumferential direction, the communication pipe 11 projecting from the base 10 A member 12;
The base 10 has a rectangular shape in a front view, and has a semi-cylindrical shape having a circular arc shape circumferentially curved along the outer peripheral surface of the main pipe 15 when viewed from the axial direction.
The communicating pipe 11 extends in the radial direction with the base 10 connected to the main pipe 15. The communication tube 11 is connected to the central portion of the base 10 in a front view. The inside of the communication pipe 11 can communicate with the main pipe 15.

  The base 10 and the communicating pipe 11 are integrally formed. The base 10 and the communicating pipe 11 are formed of, for example, a polyolefin resin material such as polybutene resin, high density polyethylene resin, medium density polyethylene resin, and polypropylene resin. The base 10 is provided with a heating wire 10A embedded on the inner peripheral surface side of the peripheral wall of the base 10, and a connector attachment portion 10B which protrudes outward from the outer peripheral surface of the base 10.

  By attaching a cable connector such as a fusion machine to the connector attachment portion 10B, current can be supplied to the heating wire 10A. The connector mounting portion 10B is integrally formed with the base portion 10. The connector mounting portion 10B is disposed on the outer peripheral surface of the base 10. The connector mounting portions 10 </ b> B are separately provided at both axial end portions of the outer peripheral surface of the base 10. And a pair of connector attachment parts 10B are conducted by the heating wire 10A.

The heating wire 10A is disposed on the inner circumferential surface of the base 10. The heating wire 10 </ b> A is disposed so as to go around the communication pipe 11 a plurality of times in a front cross-sectional view.
Then, with the inner circumferential surface of the base 10 facing inward in the radial direction being in contact with the outer circumferential surface of the main pipe 15, heat is generated by energizing the heating wire 10A, and of the inner circumferential surfaces of the base 10, The base 10 and the main pipe 15 are connected by melting the resin of the portion positioned around the heating wire 10A and the outer surface of the main pipe 15.

As shown in FIG. 2, the screw member 12 is fitted inside the distal end of the communication pipe 11. In the illustrated example, a female screw member is employed as the screw member 12.
The screw member 12 is formed integrally with the communication tube 11 by insert molding, for example. The screw member 12 is undercut fitted inside the distal end portion of the communication pipe 11. In addition, it is not restricted to such an aspect, For example, the screw member 12 may be fixed to the internal peripheral surface of the front-end | tip part of the communicating pipe 11 with an adhesive agent etc. FIG. Further, as the screw member 12, a male screw member may be adopted.
The amount of projection L from the outer peripheral surface of the main pipe 15 at the front end portion of the screw member 12 (the radial distance from the outer peripheral surface of the main pipe 15 to the front end portion of the screw member 12) L is 170 mm or less. In the illustrated example, the outer diameter of the main pipe 15 is 50 mm, and the protrusion amount L of the screw member 12 is 105 mm.

Next, a method of attaching an instrument using the instrument attachment member 1 to the main pipe 15 will be described.
In the method of mounting the meter 30 according to the present embodiment, the main pipe 15 is perforated from the inside of the communication pipe 11 after the base connection step of connecting the base portion 10 to a part of the main pipe 15 in the circumferential direction The drilling process and the instrument mounting process for attaching the meter 30 to the screw member 12 after the drilling process are provided.

  In the base connecting step, the inner peripheral surface of the base 10 is brought into contact with and fixed to the outer peripheral surface of the main pipe 15 in a state where the flow of the liquid inside the main pipe 15 is temporarily blocked. Then, a cable connector such as a fusion machine is attached to a connector attachment portion 10B provided on the outer peripheral surface of the base 10, and the heating wire 10A is energized. Thus, the base 10 is connected to the main pipe 15.

Next, in the perforation process, a cutter for perforation is made to enter the inside of the communication pipe 11 to perforate the main pipe 15 from the inside of the communication pipe 11. As a result, the inside of the main pipe 15 and the inside of the communication pipe 11 communicate with each other.
And finally, the meter 30 is mounted on the screw member 12 in the meter mounting process. At this time, the male screw portion provided at the tip of the meter 30 is screwed to the screw member 12. As a result, the meter 30 is attached to the main pipe 15 via the instrument mounting member 1.

As described above, according to the instrument mounting member 1 according to the present embodiment, the communication pipe 11 having the screw member 12 fixed to the tip end portion is connected to a part of the main pipe 15 in the circumferential direction It protrudes. Therefore, by mounting the meter 30 on the screw member 12, the meter 30 can be mounted on the main pipe 15 without using other couplings and the like. For this reason, compared with the structure which joins a some coupling | joint and diameter-reduces the main pipe 15, for example, the distance from the outer peripheral surface of the main pipe 15 to the meter 30 can be restrained short. Thereby, after installation of cold / hot water piping 50, meter 30 can be installed in arbitrary positions.
Further, since the screw member 12 is fixed in advance to the distal end of the communication pipe 11, it is necessary to join the joint provided with the screw member 12 to the main pipe 15 in addition to the operation of connecting the base 10 to the main pipe 15. As a result, the installation work of the meter 30 can be simplified.

Also, a screw member 12 is fitted inside the distal end portion of the communication pipe 11. Therefore, the number of parts can be reduced and the outer periphery of the main pipe 15 can be more effectively reduced as compared with the configuration in which the screw member 12 is fixed to the tip end of the communication pipe 11 via other members such as a joint. The distance from the surface to the meter 30 can be kept short.
In addition, since the amount L of projection from the outer peripheral surface of the main pipe 15 at the tip of the screw member 12 is 170 mm or less, the distance from the outer peripheral surface of the main pipe 15 to the instrument 30 can be reliably shortened. it can.

Second Embodiment
Next, a second embodiment of the present invention will be described with reference to FIG. In the following embodiments, the same components as those of the first embodiment are denoted by the same reference numerals, and the description thereof is omitted. Only different points will be described.
In the second embodiment, the screw member 12 is fixed to the distal end of the communication pipe 11 via the joint member 20. As the joint member 20, for example, an electric fusion joint can be adopted. The joint member 20 is formed of, for example, a polyolefin resin material such as polybutene resin, high density polyethylene resin, medium density polyethylene resin, polypropylene resin and the like. The joint member 20 includes a pair of connector attachment portions 20A provided at both end portions in the radial direction, and a heating wire (not shown) electrically connected to the connector attachment portion 20A and embedded in the inner peripheral surface of the peripheral wall of the joint member 20. And.

  By attaching a cable connector such as a fusion machine to the pair of connector attachment parts 20A and energizing the heating wire, the inner peripheral surface of the joint member 20 is the outer peripheral surface of the communicating pipe 11 and the screw member 12 is inside. It is connected with the outer peripheral surface of the fitted intermediate joint 40. The medium joint 40 is formed of, for example, a polyolefin resin material such as polybutene resin, high density polyethylene resin, medium density polyethylene resin, polypropylene resin, etc., and the screw member 12 is fitted at one end of the radial direction.

  As described above, according to the instrument mounting member 2 according to the present embodiment, since the screw member 12 is fixed to the distal end portion of the communicating pipe 11 via the joint member 20, the size of the outer diameter of the instrument 30 The screw member 12 having a desired inner diameter can be arbitrarily selected in accordance with the above. Thereby, the versatility of the instrument attachment member 1 with respect to the meter 30 of various sizes can be improved.

(inspection result)
Next, the verification result of the effect described above will be described.
In this verification test, the distance L between the tip of the screw member 12 and the outer peripheral surface of the main pipe 15 due to the difference in configuration (hereinafter referred to as the amount of protrusion of the screw member 12) was confirmed.
And the instrument attachment member 1 which concerns on 1st Embodiment is employ | adopted as Example 1, and the instrument attachment member 2 which concerns on 2nd Embodiment is employ | adopted as Example 2. FIG. Further, as a comparative example, as shown in FIG. 4, the main pipe 15 was gradually reduced in diameter by three joint members, and a configuration in which the screw member 12 was attached to the tip of the reduced diameter pipe was adopted. And in each of these composition, projection amount of screw member 12 was measured. The results are shown in Table 1.

  As a result of this verification, in the configuration of Comparative Example 1, the protrusion amount of the screw member 12 is 557 mm, while in the case where the outer diameter of the main pipe 15 is 150 mm the same as Comparative Example 1, 113 mm in Example 1, In Example 2, it is 167 mm. For this reason, in Example 1 and Example 2 with respect to the comparative example, the protrusion amount of the screw member 12 is shortened significantly. Thereby, it was confirmed that the distance from the outer peripheral surface of the main pipe to the meter 30 can be shortened by the meter mounting member 1 of the present invention.

  The technical scope of the present invention is not limited to the above embodiment, and various modifications can be made without departing from the scope of the present invention.

  For example, although the example in which the cold and hot water piping 50 is used for the air conditioner 100 is shown in each of the above embodiments, the present invention is not limited to such an aspect. The hot and cold water piping 50 is, for example, a hot water supply water supply piping of a hot water supply device such as a gas water heater and a hot water boiler, a hot water supply water supply piping such as an apartment house and a detached house, a humidified water supply piping to a humidifier, It can also be applied to Further, a liquid other than water may flow inside the cold / hot water piping 50 as a refrigerant.

  Moreover, in said each embodiment, although the protrusion amount L from the outer peripheral surface of the main pipe 15 in the front-end | tip part of the screw member 12 showed 170 mm or less, it is not restricted to such an aspect. The amount of projection at the tip of the female screw may be greater than 170 mm.

  In addition, it is possible to replace components in the embodiment with known components as appropriate without departing from the spirit of the present invention, and the above-described modifications may be combined as appropriate.

1, 2 Instrument mounting member 10 Base 11 Communication pipe 12 Screw member 15 Main pipe

Claims (4)

A base that constitutes a cold / hot water pipe and is connected to a part in a circumferential direction of a main pipe through which a liquid flows inside;
A communicating pipe which protrudes from the base and whose inside can communicate with the main pipe;
And a screw member fixed to a distal end portion of the communication tube.   The said screw member is fitted inside the front-end | tip part of the said communicating pipe, The instrument attachment member of Claim 1 characterized by the above-mentioned.   The instrument mounting member according to claim 1 or 2, wherein an amount of projection from the outer peripheral surface of the main pipe at a tip end portion of the screw member is 170 mm or less. It is the attachment method of the measuring instrument which attaches a measuring instrument to the main pipe which comprises a cold / hot water piping and which a liquid flows inside using the instrument mounting member which concerns on any one of Claim 1 to 3,
A base connecting step of connecting the base to a part of the main pipe in the circumferential direction;
Drilling the main pipe from the inside of the communicating pipe after the base connecting step;
And a step of attaching an instrument to the screw member after the drilling step.

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