JPH054640Y2 - - Google Patents

Description

[Detailed description of the invention] [Industrial application field] This invention collects gas coming out of multiple liquefied gas tanks, adjusts the collected gas to a predetermined pressure using a regulator, and then This relates to liquefied gas collection equipment that supplies gas to households, factories, etc.

[Prior Art] FIG. 5 shows a liquefied gas collection device 1 that has been used in the past. Gas discharged from each of the plurality of liquefied gas tanks 2 is sent into a collecting pipe 4 via a connecting pipe 3. The collected gas is sent to the regulator 5 through the collection line 4. Since the regulator 5 has a pressure reducing valve, it reduces the pressure of the sent collective gas to a predetermined pressure, and then supplies the gas to points of use such as homes and factories.

As shown in the figure, the liquefied gas tank 2 has a valve 6 at its upper part. Further, a number of valves 7 corresponding to the number of liquefied gas tanks 2 are attached to the side of the collecting pipe 4 . The connecting pipe 3 has one end connected to the valve 6 and the other end connected to the valve 7.

[Problems to be solved by the invention] In the conventional liquefied gas collection device 1, the valve 7 was installed by the following operations. Referring to FIG. 6, first, a number of holes 8 corresponding to the number of liquefied gas tanks 2 to be connected are provided on the side of a long pipe that is to become the collecting pipe 4. and,
Sleeve 9 with threads 9a formed on the outer peripheral surface
is attached to the hole 8, and then the sleeve 9 and the collecting pipe 4 are fixed by welding. Thereafter, by screwing the valve 7 into the sleeve 9, the installation of the valve 7 is completed.

However, the process of drilling the same number of holes as the number of liquefied gas tanks 2 to be placed in the side of the long pipe 4 and then fixing the sleeve 9 to each hole by welding is time-consuming. . Moreover, as the number of liquefied gas tanks 2 to be collected increases, the length of the pipe that should become the collection pipe line 4 also increases. Normally, the valve 7 is attached to the collecting pipe 4 at a dedicated assembly factory. And sleeve 9
is fixed to the collecting pipe 4 by welding, and then transported to the installation location of the liquefied gas collecting device. In this case, if the length of the pipe that is to become the collection pipe 4 is long, transportation will be hindered. Further, normally, a plurality of valves 7 are installed at equal intervals. However, depending on the location of the liquefied gas collection device 1, it may not be possible to arrange the liquefied gas tanks 2 at equal intervals. In such a case, if the length of the connecting pipe 3 is short, it becomes impossible to connect the liquefied gas tank 2 and the collecting pipe 4.

Therefore, the object of this invention is to provide a liquefied gas collection device that is easy to assemble and can be assembled according to the conditions of the installation site.

[Means for Solving the Problems] In the liquefied gas collection device according to this invention, the collection pipe is composed of a plurality of pipes arranged in series. The liquefied gas collection device also includes a T-shaped pipe joint, a threaded socket, and an O-ring. A T-type pipe joint connects a collector pipe made of a plurality of pipes and a connecting pipe. A threaded socket is fitted onto each pipe and threadedly secured to the T-fitting. The O-ring maintains an airtight seal between the T-fitting and the pipe that fits within the T-fitting.

A groove extending in the circumferential direction is formed on the outer circumferential surface of the end of each pipe constituting the collecting pipe, and a retaining ring is attached to this groove. The threaded socket is formed with a notch that comes into contact with the side and maximum outer diameter portion of the retaining ring when it is screwed into the T-shaped pipe joint. Further, the T-shaped pipe joint is formed with a stopper portion that abuts against the end surface of the pipe to be fitted and positions the insertion end of the pipe.

[Function] The collecting pipe that sends the collected gas to the regulator is
It is made by connecting multiple pipes in series. Now, an example of the operation of connecting two pipes, ie, a first pipe and a second pipe, will be explained. First, insert the first pipe into the T-shaped fitting. In this insertion, the end surface of the first pipe is T.
This is done until it comes into contact with the stopper part of the type pipe joint. The threaded socket fitted on the first pipe is then threaded onto the T-fitting.
During this screw-in operation, the notch of the T-type pipe fitting should be
until it comes into contact with the side of the retaining ring attached to the outer circumferential surface of the pipe. Since the notch of the T-shaped pipe joint also contacts the maximum outer diameter portion of the retaining ring, the retaining ring will not come off the groove formed on the first pipe. The first pipe is thus secured to the T-fitting. In addition.
Airtightness between the first pipe and the T-fitting is maintained by an O-ring.

The second pipe also underwent the same operation as described above, and the T
Fixed to type pipe fitting. By repeating this operation, a collection pipe of a predetermined length is created. In addition,
The connecting pipe, one end of which is connected to the liquefied gas tank, is connected at the other end to the remaining connection port of the T-shaped pipe joint.

[Embodiment] The feature of this invention lies in the structure of the connecting portion between the connecting pipe 3 and the collecting pipe 4 shown in FIG. The collecting pipe 4 is not composed of a single long pipe, but is composed of a plurality of pipes connected in series in this invention. Below are
This will be explained using an example of two pipes to be connected.

FIG. 1 is a front view showing the main parts of an embodiment of this invention, a part of which is shown in cross section. The two pipes 10 and 11 constituting the collection pipe 4 are T
They are connected in series via a type pipe joint 12. The T-type pipe joint 12 has three connection ports, namely a first connection port 12a, a second connection port 12b, and a third connection port 1.
It has 2c. One pipe 10 is connected to the first connection port 12a, and the other pipe 11 is connected to the second connection port 12b. Further, the connecting pipe 3 shown in FIG. 5 is connected to the third connection port 12c. A valve that opens and closes the flow path by rotating the handle 13 is built into the third connection port 12c. For example, when replacing the liquefied gas tank 2, the handle 13 is operated to close the flow path of the valve in the third connection port 12c.

FIG. 2 shows the pipe 10, which is a component of the collecting pipe 4, alone. Also, Figure 3 shows the second
The main parts of the figure are shown enlarged. As shown in the figure, threaded sockets 14 are fitted onto the outer peripheral surface of both ends of the pipe 10. A male thread 16 is formed on the outer peripheral surface of the screw socket 14. Correspondingly, a female thread 17 is formed on the inner circumferential surface of the first connection port 12a of the T-shaped pipe joint 12 to be screwed into the male thread 16 of the threaded socket 14. Note that a screw socket 15 is also fitted onto the outer peripheral surface of the other pipe 11 to be connected to the pipe 10. The connection structure between the pipe 11 and the T-type pipe fitting 12 is as follows:
Since the connection structure between the pipe 10 and the T-shaped pipe joint 12 is the same, only the connection structure between the pipe 10 and the T-shaped pipe joint 12 will be described below.

Referring to FIG. 3, a groove 18 extending in the circumferential direction is formed on the outer circumferential surface of the end portion of the pipe 10. As shown in FIG.
A retaining ring 19 is attached to this groove 18. Further, on the inner peripheral surface of the end of the screw socket 14, the screw socket 14 is connected to the T-shaped pipe joint 1.
A notch 20 is formed that comes into contact with the side and maximum outer diameter portion of the retaining ring 19 when the retaining ring 19 is screwed into the retaining ring 19 .

Referring to FIG. 1, the T-shaped pipe joint 12 is formed with a stopper portion 21 that abuts against the end surface of the pipe 10 to be fitted and positions the insertion end of the pipe 10. Further, as shown in the figure, an O-ring 22 is installed between the outer peripheral surface of the pipe 10 and the T-shaped pipe joint 12. This O-ring 22 is T
The type pipe joint 12 prevents gas from leaking from the connection part with the pipe 10.

By employing the above-described structure, the collection pipe 4 for sending the collection gas to the regulator can be assembled at the location where the liquefied gas collection device is installed. In this case, the plurality of pipes constituting the collection pipe 4 can be separated and transported, which is very convenient. Furthermore, if pipes of different lengths are prepared as the pipes constituting the collection pipe, it is possible to select the optimum length of the pipe depending on the situation of the location where the liquefied gas collection device is installed.

The specific steps for assembling the collecting pipe are as follows. Referring to FIG. 1, first, the pipe 10 is inserted into the first connection port 12a of the T-shaped pipe joint 12. This insertion is continued until the end surface of the pipe 10 comes into contact with the abutment stop 21 of the T-shaped pipe joint 12. Thereafter, the threaded socket 14 is screwed into the T-shaped fitting 12. This screwing is continued until the notch 20 of the screw-in socket 14 comes into contact with the side of the retaining ring 19. Since the notch 20 of the threaded socket 14 is also in contact with the maximum outer diameter portion of the retaining ring 19, even if the retaining ring 19 is pressed in the longitudinal direction of the pipe 10 by the threaded socket 14, the retaining ring 19 will not come off the groove 18 of the pipe 10. Thus, in the state shown in FIG. 1, the pipe 10 is prevented from moving to the left in the figure because its end surface comes into contact with the abutment stop 21 of the T-shaped pipe joint 12, and the pipe 10 is prevented from moving to the right in the figure. Movement of the retaining ring 19 is prohibited by abutting against the notch 20 of the threaded socket 14. In this manner, the pipe 10 can be secured to the T-shaped fitting 12 by simply screwing the threaded socket 14. This operation is very simple and can be done in a short time.

The pipe 11 is also connected to the second connection port 12b of the T-shaped pipe joint 12 in the same manner as described above. By repeating this procedure, a desired length of the collecting pipe can be obtained. After that, the third part of the T-type pipe joint 12
The connecting pipe 3 shown in FIG. 5 is connected to the connection port 12c.
is connected.

FIG. 4 is a diagram showing a main part of another embodiment of this invention, a part of which is shown in cross section. In the embodiment shown in FIG. 4, the same numbers as those shown in FIG. 1 indicate the same or equivalent elements, and therefore the description thereof will be omitted.
In the embodiment shown in FIG. 4, a female thread 26 is formed on the outer peripheral surface of the T-shaped pipe joint 25. As shown in FIG. A female thread 27 is formed on the inner peripheral surface of the threaded sockets 23 and 24 to be fitted onto the pipes 10 and 11, and is threaded into the male thread 26. Also in this embodiment, the two pipes 10 and 11 can be connected in series via the T-shaped pipe joint 25 by simply screwing the screw sockets 23 and 24. The connecting pipe 3 shown in FIG. 5 is connected to the remaining connection port of the T-shaped pipe joint 25.

[Effects of the invention] As described above, according to this invention, the collection pipe for collecting the gas sent from each liquefied gas tank and sending it to the regulator is composed of a plurality of pipes, and The pipes are connected in series to each other by T-fittings and threaded sockets. Therefore, the conventional work of drilling a long pipe and fixing a threaded sleeve to the hole by welding becomes unnecessary, and the assembly work can be performed efficiently. Furthermore, with conventional liquefied gas collection equipment, the collection pipe was made up of one long pipe, making it difficult to transport it, but with this idea, the multiple pipes that make up the collection pipe are separated. Since the product can be transported as it is, there are no problems with transportation as in the past. Moreover, according to this invention, the collection pipe can be assembled at the location where the liquefied gas collection device is installed. Therefore, if several types of pipes of different lengths are prepared as the pipes constituting the collection pipe, it is possible to select the pipe with the optimum length depending on the situation at the actual installation location.

Furthermore, in the liquefied gas collection device of this invention, T
Movement of the pipe inserted into the type pipe joint in one direction is prohibited by the abutting part, and movement in the other direction is prohibited by the retaining ring and threaded socket, so that the pipe does not shift in position. .
Furthermore, since no particularly excessive pressure is applied to the pipe, damage to the pipe is less likely to occur.

[Brief explanation of the drawing]

FIG. 1 is a front view showing a main part of an embodiment of this invention, a part of which is shown in cross section. FIG. 2 shows the pipe 10 and threaded socket 14 shown in FIG. FIG. 3 is an enlarged cross-sectional view of the main part of FIG. 2.
FIG. 4 is a front view showing the main parts of another embodiment of this invention, a part of which is shown in cross section. FIG. 5 is a diagram showing a conventional liquefied gas collection device. FIG. 6 shows the collection pipe 4 shown in FIG.
FIG. 3 is a diagram for explaining a conventional structure for connecting the connecting pipe 3 and the connecting pipe 3; In the figure, 1 is a liquefied gas collection device, 2 is a liquefied gas tank, 3 is a connecting pipe, 4 is a collection pipe, 5 is a regulator, 10 and 11 are pipes, 12 is a T-shaped pipe joint,
14 and 15 are screw-in sockets, 16 is a male screw,
17 is a female thread, 18 is a groove, 19 is a retaining ring, 20 is a notch, 21 is a stopper, and 22 is an O-ring.

Claims (1)

[Scope of Claim for Utility Model Registration] (1) A plurality of liquefied gas tanks that store liquefied gas inside, and a plurality of connecting pipes each having one end connected to the liquefied gas tank and leading the gas out of the tank. and connecting the other end of each of the connecting pipes to the side surface thereof,
A collection pipe that collects the gas introduced through each of the connecting pipes and sends it to a predetermined location; and a collection pipe that adjusts the gas sent through the collection pipe to a predetermined pressure and supplies it to a predetermined use point. A liquefied gas collection device including a regulator, wherein the collection pipe line is composed of a plurality of pipes arranged in series, and further, the collection pipe line made of the plurality of pipes and the connecting pipe are connected to each other. a T-type pipe fitting to be connected; a threaded socket that is fitted onto each of the pipes and is screwed and fixed to the T-type pipe fitting; the T-type pipe fitting; an O-ring that maintains airtightness between the pipe and the pipe, a groove extending in the circumferential direction is formed on the outer peripheral surface of the end of the pipe, a retaining ring is attached to the groove, and the screw-in The socket is formed with a notch that contacts the side and maximum outer diameter portion of the retaining ring when screwed into the T-shaped pipe fitting, and the T-shaped pipe fitting has a notch that abuts the side portion and the maximum outer diameter portion of the retaining ring. A liquefied gas collection device, characterized in that a contact stop is formed to abut against an end face and position the insertion end of the pipe. (2) The utility model according to claim 1, wherein a male thread is formed on the outer circumferential surface of the threaded socket, and a female thread is formed on the T-shaped pipe joint to be screwed into the male thread. Liquefied gas collection equipment. (3) The liquefier according to claim 1, wherein the T-shaped pipe joint has a male thread formed on its outer circumferential surface, and the threaded socket has a female thread that is screwed into the male thread. Gas gathering device.