KR100771203B1 - Water pipe having the water leakage sense - Google Patents

Abstract

A high pressure water pipe having water leakage sensing function is provided to minimize water leakage by effectively plugging a gap formed in a joining portion of the water pipe, and to prevent water leakage by securely clamping the water pipes according to rise of water pressure. A high pressure water pipe having water leakage sensing function comprises a first water pipe(100), a backward flow prevention pipe(400), a transfer pipe(300), a second water pipe(200), a packing(500) and an electric current sensor(700). The first water pipe with open both ends, consists a flange(120) having a plurality of linking holes(121), and provided with a groove(150) in an inner surface. The backward flow prevention pipe has one end fitted to an end of an extension pipe(110) and the other end including a plurality of incision portions incised in a longitudinal direction. The transfer pipe has a fixing ridge(320) engaged with the groove in an outer circumferential surface of one end, and a first inclined surface(310) so as to be joined to an extended portion(111). The second water pipe is joined with the flange of the first water pipe, and linked by a linking member(C). The packing includes first and second conduction terminals(512,513) having electrically coupled rings. The electric current sensor is electrically interconnected to the first and second conduction terminals, and senses an electric current.

Description

Water pipe having the water leakage sense

1 is an exploded perspective view illustrating a joint structure of a water pipe according to the present invention;

2 is a sectional view showing a joint of a water pipe according to the present invention;

3 is a cross-sectional view showing the operation of the moving tube when the constant flows in the rectifying pipe according to the present invention,

4 is a cross-sectional view showing the state when the constant flow in the reverse flow in the water pipe according to the present invention,

5 is a perspective view illustrating an installation of the first and second energizing terminals according to the present invention;

6 is a circuit diagram schematically showing the installation of the first and second energizing terminals according to the present invention.

-Explanation of terms for main parts of attached drawings-

100; First water pipe 110; Extension

111; Protrusions 120, 220; flange

130; Fittings 140, 240; Extension

150; Groove 200; Second water pipe

300; Moving tube 310; First slope

320; Fixed jaw 330; Second slope

400; Countercurrent arrestor 410; Incision

500; Packing 511, 512; 1st and 2nd power terminal

700; Current sensor

The present invention relates to a high pressure constant water pipe having a leak detection function.

Water pipes underground or above the ground are divided into water pipes and sewer pipes. Here, the water pipe is a passage of purified and disinfected high water supply, and a large pressure must be applied to supply the water to a remotely located consumer. Therefore, the water pipe must have sufficient rigidity to support the pressure.

For this purpose, the water pipe is made of steel and the diameter is made as large as possible to minimize the amount of water pressure per unit area of the water pipe. Therefore, the water pressure received by the water pipe can be reduced, and the material of the water pipe itself performs the task as a water pipe without major problems.

By the way, since such a water pipe cannot be integrated from a water source to a consumer, a plurality of water pipes are piped afterwards. Thus, a joint is formed between the water pipe and the water pipe. However, a gap may be generated in such a joint and a constant flowing at high water pressure may leak through the gap.

Of course, this leak is compensated to some extent by packing it with synthetic resin covering the boundary of the joint where the gap occurs or by processing the shape so that the connection between the water pipes is close to each other, but it does not completely block the leak, As the joints between the water pipes and the water pipes open, the gap increases, which does not completely eliminate the occurrence of leakage due to the gaps formed in the joints.

On the other hand, if a leak occurs in the joint of the underground water pipe, it is not easy to recognize. In other words, if a leak occurs in the underground water pipe, it is not possible to quickly cope with it. Therefore, the water is unnecessarily consumed by continuous water leakage, and the cause of the water leak becomes worse, and eventually the water pipe needs to be replaced. will be.

Accordingly, the present invention has been invented to solve the above problems, to efficiently fill the gap formed in the joint portion of the water pipe to minimize the occurrence of leakage, and as the water pressure increases the tight connection between the water pipe and the water pipe It is a technical task to provide a high pressure water pipe having a leak detection function that can effectively prevent leakage, and promptly identify a leak when it occurs.

The present invention to achieve the above technical problem,
An open end of the tubular shape, the end is an extension of the expansion of the inner diameter and has a flange having a plurality of fastening holes, and has an extension tube extending in the longitudinal direction, the space between the inner surface of the extension and the outer surface of the extension tube A first water conduit forming a fitting hole, a protrusion protruding from an inner surface of the distal end of the extension tube to have a slope greater than that of an inner surface, and a groove formed on an inner surface thereof;
One end of the tubular shape is fixed to the end of the extension tube, the other end has a plurality of incisions cut in the longitudinal direction, the backflow blocking tube made of an elastic material that can be bent;
Once in the outer circumferential surface having a fixing jaw to engage with the groove, inserted into the extension tube is fixed to be movable in the range of the groove, once the inner circumferential surface is inclined to narrow the inner diameter toward the inner side to form a second slope The other end outer circumferential surface is a moving tube forming a first slope inclined to engage with the protrusion;
A tubular shape of which both ends are open, the end portion of which is extended to the inner diameter is an extension portion is inserted into the extension tube and has a flange having a plurality of fastening holes, while engaging with the flange of the first water pipe is fastened via a fastening member Two-water pipe;
An elastic material inserted between the extension pipe including the fitting hole and the inner surface of the expansion part in the expansion part of the first and second water pipes fastened to each other, and a plurality of them are arranged side by side and electrically connected to each other while surrounding the outer circumferential surface. A packing having first and second conducting terminals having rings, wherein the rings of the first and second conducting terminals are adjacent to each other but are not in contact with each other; And
A current sensor electrically connected to the first and second conducting terminals to sense current when the respective rings of the first and second conducting terminals are energized with each other as a leakage constant;

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It is a high pressure water pipe with leak detection function.

Hereinafter, the present invention will be described in detail with reference to the accompanying drawings.

1 is an exploded perspective view illustrating a joint structure of a water pipe according to the present invention, and FIG. 2 is a cross-sectional view illustrating a joint part of a water pipe according to the present invention.

The water pipe according to the present invention includes flanges 120 and 220 at ends connected to other water pipes adjacent to the water pipes, and a plurality of fastening holes 121 and 221 are formed in the flanges 120 and 220, so that the water pipes are fastened. The adjacent water pipes 100 and 200 may be firmly fixed to each other through the fastening member C passing through the balls 121 and 221.

The water pipe (100, 200) is a pair of the first water pipe 100 and the second water pipe 200, each other, the first water pipe 100 is an extension pipe 110 protruding in the longitudinal direction It includes more.

As shown in the drawing, the extension pipe 110 is integrally formed with the first water pipe 100 and is inserted into the second water pipe 200 to be engaged with the second water pipe 200.

The inner side of the extension tube 110 has a protrusion 111 having a shape in which the inner diameter is gradually narrowed toward the end and rapidly expands at the end. In other words, the protrusion 111 formed on the inner surface of the extension pipe 110 is gradually inclined toward the end while the inclination is sharp.

Subsequently, a fitting hole 130 is formed between the extension pipe 110 and the flange 120. One end of the packing 500 is fitted into the fitting hole 130. The packing 500 is a synthetic resin having elasticity close to the outer peripheral surface of the extension tube 110 to wrap it.

The water pipe preferably has a constant inner diameter at all times regardless of its position. In other words, the bottleneck does not occur. Accordingly, the water pipe according to the present invention has a diameter of the end of the first and second water pipes 100 and 200 such that the bottleneck is minimized by the configuration of the packing 500 and the extension pipe 110 inserted into the joint. It is desirable to have these enlarged extensions 140, 240.

The expansion parts 140 and 240 extend beyond the average inner diameter of the first and second water pipes 100 and 200, and in the case of the first water pipe 100, the fitting holes 130 are extended by the expansion part 140. To secure space. Of course, in the case of the first water pipe 100 there is no expansion for the passage through which the constant flows due to the extension pipe 110. On the other hand, the end of the extension pipe 110 is to be in contact with the boundary of the expansion 240 of the second water pipe 200, by the extension pipe 110 at the time of interconnection of the first and second water pipes (100, 200) The diameter of the passage through which the constant flows is maintained substantially constant regardless of the presence or absence of the extension parts 140 and 240, and the outer surface and the extension parts 140 and 240 of the extension pipe 110 around the fitting hole 130. Spaced spaces are formed between the inner surfaces of the surfaces.

At the end of the extension pipe 110, the backflow stop pipe 400 is connected in the longitudinal direction. The extension pipe 110 is made of a metal material of the same material as the water pipe, so that bending does not easily occur. On the other hand, the backflow stopper 400 is made of a synthetic resin material having elasticity, and is cut along the circumferential surface of the distal end so that partial bending occurs and forms an incision 410.

The moving tube 300 is inserted into the extension tube 110. The movable pipe 300 is movable in the longitudinal direction in accordance with the flow of the constant in the first constant pipe 100, in order to limit the movement range has a fixed jaw 320 protruding outward on one side outer peripheral surface, the movable pipe An inner surface of the first water pipe 100 to which the 300 abuts has a groove 150 into which the fixing jaw 320 is movably engaged. Therefore, within the range of the groove 150, the moving pipe 300 moves along the longitudinal direction of the first water pipe 100.

Subsequently, the other outer surface of the moving tube 300 has a first slope 310 inclined to correspond to the extension tube 110 in which the inner surface is inclined.

As described above, the inner surface of the extension tube 110 is projected to narrow the inner diameter toward the end to form a protrusion 111 having an inclined surface. Therefore, while the outer surface of the moving tube 300 which is in contact with the inclined surface also forms the first slope 310, when the moving tube 300 is pushed and moved by a constant water pressure, the force 111 is projected through the first slope 310. Is delivered to the extension tube 110 to receive. The end of the extension tube 110 is radially applied to the packing 500 is inserted into the fitting hole 130, the packing 500 is the joint between the first and second water pipes (100, 200) The boundary is tightly sealed and sealed.

Of course, as the constant pressure increases, the horizontal moving force of the moving pipe 300 increases, and the pressure of the extension pipe 110 that presses the packing 500 increases in proportion to the pressure of the first and second constant pipes 100 and 200. The packing 500 effectively fills and seals the gap enlarged by the gap.

The moving tube 300 forms a second slope 330 on one inner surface of the moving tube 300 opposite to the first slope 310. The second slope 330 faces constants so as to minimize vortices of constants that may occur due to sudden protrusion, while horizontal forces due to constant pressure are transmitted to the moving tube 300. Therefore, the movable pipe 300 is able to receive a sufficient force from the flow of constant to apply a force to the protrusion 111.

Figure 3 is a cross-sectional view showing the operation of the moving tube when the constant flow in the rectification in the water pipe according to the present invention, will be described with reference to this.

As described above, when the constant flowing through the first and second constant pipes 100 and 200 is rectified, the moving pipe 300 is caused by the collision of the constant and the friction between the second slope 330 and the constant. Move. Of course, the first slope 310 is engaged with the protruding portion 111 of the extension pipe 110 to apply a radial force of the extension pipe 110, which causes the packing 500 of the first and second water supply pipes (100, 200) It closely engages with the inside.

Figure 4 is a cross-sectional view showing a state when the constant flow in the reverse flow in the water pipe according to the present invention, will be described with reference to this.

On the other hand, the water pipe according to the present invention further includes a configuration for preventing reverse flow of the constant. In such a configuration, there is a backflow stopping pipe 400, and the moving pipe 300 also has a function of preventing backflow of a constant.

The backflow stop tube 400 is fixed to the end of the extension pipe 110, and is made of an elastic material so that when the constant flows back, it is bent toward the center of the water pipe with its force. At this time, the backflow stop pipe 400 is a plurality of cutouts 410 is formed so that the end can be individually bent, so that the backflow stop pipe 400 is easily squeezed by the force of the constant flow back.

This deflection narrows the space in the water conduit, obstructing the flow of the constant, and eventually inhibits the reverse flow of the constant.

On the other hand, when the constant flow back flows through the backflow stop pipe 400 and the flow force is transferred to the moving pipe 300, the moving pipe 300 moves along the flow of the constant back flow, the fixed jaw 320 is the groove 150 When moving to the end of the moving tube 300 stops further movement.

In this case, since the first slope 310 of the moving tube 300 forms a space between the inner surface of the extension tube 110, the first slope 310 provides resistance to a constant backflow. Therefore, since the portion of the first slope 310 of the movable pipe 300 is slightly curved to narrow the space where the constant flows, the reverse flow stop pipe 400 together with the constant backflow is prevented.

5 is a perspective view illustrating an installation of the first and second energizing terminals according to the present invention, and FIG. 6 is a circuit diagram schematically illustrating an installation of the first and second energizing terminals according to the present invention. Explain.

Through the above-described structure, the first and second water pipes 100 and 200 according to the present invention are closely connected to each other to minimize the occurrence of leakage. However, if a leak occurs in such a structure, it is to be quickly detected, and a sensing structure and system for this should be inexpensively constructed. This is because the connection points between the water pipes are so large that expensive leak sensors cannot be installed everywhere.

To this end, the present invention applies a structure that recognizes the current by using the leaked constant as a current collector and detects whether or not the leakage occurs.

A plurality of rings surrounding the tubular packing 500 are arranged in parallel on the outer circumferential surface or inside of the packing 500, and each ring is electrically connected to form first and second conducting terminals 511 and 512. At this time, the ring of the first conducting terminal 511 and the ring of the second conducting terminal 512 do not contact each other but overlap each other to surround the packing 500.

On the other hand, as shown in Figure 6, the current sensor 700 is provided in a circuit including a power supply unit 600 for supplying electricity to the first and second conducting terminals 511 and 512, respectively. The power supply unit 600 continuously flows electricity into the circuit. However, since the first and second conducting terminals 511 and 512 are not in electrical contact, no current flows through the circuit. Thus, the current sensor 700 does not react.

By the way, when a gap occurs in the joints of the first and second water pipes 100 and 200 and leaks, the constant flips the outer surface of the packing 500 and overlaps the first and second conducting terminals 511 and 512. ) Ring. As a result, the leaked constant becomes the energization medium to energize the first and second energization terminals 511 and 512 for a long time or temporarily. Thus, a current is generated in the circuit and the current sensor 700 detects this.

The detection result of the current sensor 700 is transmitted to the management center for managing the water pipe, through which the administrator can check whether the water pipe leaks.

According to the present invention as described above, the gap formed in the joint portion of the water supply pipe tightly closes the greater the hydraulic power and pressure of the constant to minimize the possibility of leakage, and also prevent the backflow to induce a smooth flow of constant It can be effective.

In addition, it is possible to quickly check whether or not the water leakage in the joint of the water pipe, but the installation and management cost for this is low, there is an effect that can be economically managed water pipe.

Claims (1)

An open end of the tubular shape, the end is an extension of the inner diameter is extended 140 and has a flange 120 having a plurality of fastening holes 121, and is provided with an extension tube 110 extending in the longitudinal direction The inner surface of the extension part 140 and the outer surface of the extension tube 110 are spaced apart to form the fitting holes 130, and the inclination of the outer surface at the distal inner surface of the extension tube 110 is greater than the inclination of the inner surface. A first water pipe (100) forming a protrusion (111) protruding to be formed and having a groove (150) formed on an inner surface thereof; One end of the tubular shape is inserted into the end of the extension pipe 110, the other end has a plurality of incisions 410 cut in the longitudinal direction, the backflow stop pipe 400 made of an elastic material that can be bent ; Once in the outer circumferential surface having a fixing jaw 320 to engage with the groove 150, inserted into the extension pipe 110 is fixed in the tubular shape so as to be movable within the range of the groove 150, once the inner circumferential surface inward Moving pipe 300 to form a second slope 330 is gradually inclined to narrow the inner diameter, the other end of the outer peripheral surface forms a first slope 310 inclined to engage the protrusion 111; The first constant is provided in a tubular shape with both ends opened, and an end portion thereof has an extension diameter 240 and an extension portion 240 into which the extension tube 110 is inserted, and a flange 220 having a plurality of fastening holes 221. A second water pipe 200 engaged with the flange 120 of the pipe 100 and fastened through the fastening member C; Between the extension pipe 110 including the fitting hole 130 and the inner surfaces of the expansion parts 140 and 240 in the expansion parts 140 and 240 of the first and second water pipes 100 and 200 fastened to each other. It is an elastic material that is inserted and arranged, the plurality of first and second conducting terminals 511 and 512 having a ring electrically connected to each other and arranged side by side surrounding the outer peripheral surface spaced apart from each other, the first and second conducting terminals 511, The rings of 512 are packed 500 so as to be adjacent but not in contact; And When the first and second conducting terminals 511 and 512 are electrically connected to each other, and the respective rings of the first and second conducting terminals 511 and 512 are electrically energized using the leakage constant as the conducting medium. Detecting the current sensor 700; High pressure water pipe having a leak detection function, characterized in that consisting of.

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