KR20100094250A - Sensing device for sensing leakage of pipe connecting portion - Google Patents

Abstract

PURPOSE: A detecting apparatus for sensing the leakage of a hose connection part, which can accurately check the damage to a hose connection part, is provided to prevent the large-scale accident or the citizen in advance by detecting the negative pressure on a connection part of a garbage transfer pipeline. CONSTITUTION: A detecting apparatus for sensing the leakage of a hose connection part comprises a cover, a detection sensor(20) and an exterior finishing member. A hole is formed on the upper side of the cover. The detection sensor is installed in the inner upper end of the cover. Copper coils(25) face to each other in a detection sensor closure(21). The exterior finishing member surrounds the cover. A plurality of inlet ports(22) is formed on the closure. A water swelling rubber(24) is attached to the rear side of the copper coil.

Description

SENSING DEVICE FOR SENSING LEAKAGE OF PIPE CONNECTING PORTION}

The present invention relates to a leak detection device for connecting the pipe material, more specifically, when leaking due to damage to the pipe material connection so that the contents do not flow out to the outside without disorder and out of the cover after passing through the sensor to the outside of the cover. When negative pressure is applied, a hole is formed in the upper part of the cover surrounding the connection part of the piping material so that the outside air flows in through the detection sensor and escapes to the damaged pipe material gap. The present invention relates to a detection device for leak detection of a pipe connection that can accurately check whether a connection of the pipe is damaged through a sensor.

Water pipes, gas pipes, oil pipes, oxygen or nitrogen supply pipes, sewer pipes, waste pipes, etc., which provide convenience to life, are used to connect various pipes by joints, flanges or welding to provide various materials for us. have. However, when these pipes are misconstructed at the initial stage, or the connection is broken due to corrosion or sedimentation, earthquake or shock during long-term use, gas leakage, tap water leakage or oil leakage may occur. It will not be picked up, which will make it difficult to collect garbage. Therefore, if these pipe connections are broken in real time, they can be recovered at the minimum cost, and large accidents can be prevented. However, our society has always been exposed to risks because of the lack of institutional mechanisms to prevent such risks and must be dealt with by reporters after the accident.

The pipelines that supply the necessary materials by using pipes include water pipes, gas pipes, oil pipes, sewage pipes, heavy water pipes, special gas pipes such as oxygen or nitrogen, waste pipes, and so on. In this case, it is common to respond after receiving a report, which causes a lot of inconvenience to citizens.

However, in order to monitor the leakage of the connecting portion of the pipe for transporting water, such as a water supply pipe recently buried underground, as shown in Figure 1, by coating a metal powder or the like on a ball made of a light material to rise by buoyancy Make a sensing ball (1), peel off part of the jump line (2) and install it on the upper part of the cube body, and if a leak occurs, the peeling part (3) and the sensing ball (1) induces a short when contacted Developed a leak detection sensor to attach to the pipe material or joint using adhesive, and if a leak occurs due to a certain pressure or more, the pressure sensor attached to the upper part of the cover is opened, so that the water leaks out to the upper part. As (1) comes up and contacts the stripped detection line, a leak detection sensor and a hard cover have been developed and are in use.

The reason why the pressure sensor is attached to the upper part of the cover is that the upper part of the cover is sealed even when external water flows in between the hard cover and the pipe gap, thereby preventing the water from filling up to the sensor part. This is to open the pressure sensor to the outside when the above pressure occurs.

In order for this method to be fully functional, the cover must be completely installed to prevent external water from flowing in and the pressure sensor must withstand a certain pressure so that the pressure sensor can operate in case of leakage. If the watertightness of the cover is insufficient, not only water is introduced outside, but water leaks out to this part when a leak occurs, and thus there is a problem that the pressure sensor does not operate and thus does not detect the leak.

Especially in the case of waste water pipes sent to the sewage terminal treatment plant, the pump is intermittently pumped only for a fixed time, so even if a leak occurs in the joint, the leak can be checked only temporarily when the pump is leaked. Since it is separated from the detection line, it is difficult to pinpoint whether it is a real leak.

Therefore, the key point for the normal operation of the system for monitoring the abnormality of the existing connection is that the water pressure of the hard cover is perfect, and if a certain water pressure is generated, the pressure sensor should be activated and a short phenomenon must be maintained in the sensor. In order to do this, water-expanded rubber should be inserted in the contact area between the cover and the pipe surface of the cover, and the water gap must be maintained until the pressure sensor is operated by water pressure. Many bolts and nuts have to be tightened to prevent it from being lost, which can be expensive and costly for construction.

In addition, in order to compensate for the above problems, the outside of the cover may be wrapped with a tape or the like, but since the cover is assembled using bolts and nuts, not only the wings are exposed to the outside of the cover but also because of the fastening bolts and nuts. Difficult and expensive. And since the pressure sensor is protruded on the top of the cover, there is a risk of being damaged by the fork-lane during the backfill construction, the bolts and nuts may be corroded to the salt when installed in the salt area.

On the other hand, in order to monitor the entire network in real time with TDR, the entire network must be connected in one piece, and in order to monitor the long-distance pipe network, the energy pulse transmitted from the TDR should be transmitted far through the sensing line to reduce the cost for the detection system. Therefore, when making a sensing tube, the sensing line is inserted between the coating layers, and even when the sensing line is attached to the outside of the tube, it is wrapped with tape to prevent attenuation of energy pulses, and a jump line connecting the sensing line and the sensing line exposed to the end of the tube. Also, those coated with a resin such as polyethylene or PVC are used.

However, the existing connection leak sensor is located in the upper part of the enclosure consisting of a hexahedron by stripping the coating of the line used as the jump line (3), and put a special ball (1) coated with a metal component floating in the buoyancy at the bottom When the special ball (1) coated by the buoyancy is made to touch the stripped line (3) to detect when a lot of attenuation occurs because of this exposed area. Therefore, due to the effect of this attenuation, when the front sensor is operated, there is a disadvantage that it is not possible to accurately determine whether or not the leak occurs in the back.

In addition, in the above method, since the contact surface (two point contact) of the stripping portion 3 of the jump line 2 and the sensing ball 1 is small, the sensing performance may be degraded.

In addition, a sensing line made of copper wire or the like is inserted between the outer coating layers of the pipe to recognize in real time whether or not the pipe is damaged by using a TDR (measuring device), or a dedicated tape made by inserting the sensing wire is wound around the outside of the pipe. After connecting one pipe side by side and connecting the sensing lines exposed to the ends of adjacent pipes in order to monitor the entire pipeline as one network, use a jump line (2) coated with polyethylene or PVC. In order to check the leakage of welded joints or joints or flanges, a part of the coated jump line is removed to make a sensing sensor, which reduces the energy pulse transmitted from the TDR, thereby shortening the monitoring distance.

The present invention has been made to solve the conventional problems as described above, the object of the present invention is to develop a real-time monitoring whether the leakage of water pipes and sewage pipe connections buried underground and the sensor and cover in use In addition to improving the irrationality of the more accurate and economical way to improve, in addition to providing a sensor and a detection device that can be used in gas pipes, oil pipes, oxygen transport pipes, nitrogen transport pipes, waste transport pipes, and the like.

That is, the present invention can be applied regardless of the place, whether underground buried pipe or indoor installation pipe, and also overcomes the limitation that can be recognized only when water is introduced, such as a water pipe or a wastewater pipe, and a gas such as a gas. For leak detection or oil leakage in real time, especially in case of breakage of connection due to corrosion, cracking or abrasion, improved leak detection for real-time detection of abnormality of garbage pipes that suck in garbage with vacuum It is to provide a sensing sensor and a sensing device including the same has an object.

In addition, the present invention instead of using a part of the jump line in direct stripping to solve the problem of shortening the monitoring distance by attenuating the energy pulse transmitted from the TDR by using a detection sensor by making a part of the jump line coated in the prior art. It is intended to increase the efficiency of TDR and reduce the overall installation cost by preventing the attenuation of energy pulses by making a separate sensor and connecting it with a jump line.

In order to achieve the above object, in the present invention, in the detection device to be installed in each connection to check whether the abnormality in real time when the contents leak from the joined connection of the piping material, leaked when the contents leaked due to damage to the pipe connection The cover is formed on the upper side of the cover so that air is easily introduced from the outside when the contents escape to the outside or a negative pressure is generated, and is installed on the inner upper end of the cover so that the contents are leaked to the outside or the negative pressure is generated. When the air is introduced through the hole, the copper plate is installed to face the inside of the enclosure so as to check whether the connection part is abnormal due to the leaked contents or the air pressure. If the copper plate is in contact Wrapping the cover to prevent the sensor from escaping by gas pressure or water pressure due to external earth pressure or internal connection breakage, and preventing the contents from leaking between the contact area or the cover and the outer surface of the piping material. There is provided a sensing device comprising an outer finishing member.

In one embodiment of the present invention, the detection sensor is installed on the upper side inside the cover installed in the connection portion of the pipe material for transporting water, when the water leakage in the pipe material connection portion is formed with a plurality of inlets through which the water can be introduced It consists of a cube body, two connecting wires directly connected to the jump line, a copper plate connected to each end of the connecting line, and installed to face each other inside the enclosure, and a water-expandable rubber attached to the rear surface of the copper plate, The enclosure may include a space portion through which the water-expandable rubber may be expanded by water, and when water flows into the inlet, the water-expanded rubber may be expanded to detect the copper plates in contact with each other.

As another embodiment of the present invention, the detection sensor is installed on the upper side inside the cover installed in the connection portion of the pipe material for transporting gas or oil, the inlet and outlet are provided so that the contents leaked into the pipe material connection flows in and out Comprising a housing, two connecting wires directly connected to the jump line, and a copper plate connected to the end of the connecting line, respectively, and installed to face each other inside the enclosure, any one of the copper plate is installed on the inlet side, the other One is installed on the outlet side, the copper plate provided on the inlet side is formed with a V-shaped connecting portion, when the gas or oil flows through the inlet, the copper plate is bent to the opposite side by the pressure The contact may be detected by contacting the outlet side copper plate.

Here, the detection sensor is attached to the secondary iron plate on the inlet side copper plate so that the short state is maintained until the repair if the leakage occurs, and the magnet is installed behind the outlet side copper plate so that the two copper plates are completely contacted and sensed.

In another embodiment of the present invention, the detection sensor is installed on the inner side of the cover installed in the pipe connection portion of the waste transport pipe, if the damage occurs in the pipe connection portion when the negative pressure is generated from the outside air flows into the pipeline It consists of a housing having an inlet and an outlet, and two connecting lines directly connected to the jump line, and a copper plate respectively connected to the ends of the connecting line, and installed to face each other inside the enclosure, wherein any one of the copper plate is Is installed on the inlet side, the other is installed on the outlet side, the copper plate is installed on the inlet side is formed with a V-shaped connection, when the outside air flows through the inlet when the negative pressure is generated The copper plate is bent to the opposite side so that the connection portion can be detected by contacting the outlet side copper plate.

Here, the detection sensor is attached to the secondary iron plate on the inlet side copper plate so that the short state is maintained until the repair if the leakage occurs, and the magnet is installed behind the outlet side copper plate so that the two copper plates are completely contacted and sensed.

In the present invention, the jump line and the detection sensor is connected to the connection line to be integrated, and in the field construction can be constructed by connecting the jump line with the detection sensor and the detection line of the adjacent pipe.

In the present invention, a hose may be connected to the hole so that the leaked contents in the cover are discharged out of the cover without the inflow of external water through the hole, or when external air is introduced when a negative pressure occurs.

Here, the groove may be formed so that the hose can be inserted into the outside of the cover to protect the hose during earth pressure, rotation pressure or construction.

In addition, the groove may be made of a straight (-) type or S-shaped (S) type.

In the present invention, in order to prevent the hose from being separated from the hole or the groove is connected to the hole and the connection portion of the hose inserted into the groove with a strong tape finish, or using a resin such as ceramic, polyurea, epoxy To form a closed structure.

In the present invention, the cover is made of a material that can withstand the pressure of the outside and the inside, it may be made of any one selected from compressed rubber, ABS resin, compressed styrofoam, compressed polyurethane, reinforced plastic, coated iron sheet. .

In the present invention, when the cover is made of compressed styrofoam or compressed polyurethane, the inside and the outside may be coated with a material such as ceramic, polyurea or epoxy so as not to be damaged by external pressure or internal water pressure even during long-term use. have.

In the present invention, the outer finishing member is covered with any one of the outer finishing tape, sheet, tube containing a resin such as gypsum, ceramic, polyurea, epoxy to cover the connection portion to strengthen the water tightness of the cover and withstand the external pressure Made of one can be wrapped around the cover.

In the present invention, the cover is composed of at least two or more covers, including the upper cover and the lower cover, the pressure sensor does not generate a sewage pipe is installed in the middle of the pipe connection, the other detection sensor inside the upper cover Can be installed on

In the present invention, the cover is composed of at least two or more covers including the upper cover and the lower cover, when the sacrificial anode method is easy to pull out the connecting line connected to the sacrificial anode to the outside of the cover for each distance of the connection portion In order to maintain the airtightness of the hole and to prevent external water from being introduced, a water-swollen rubber having a predetermined size may be inserted into the hole.

According to the present invention as described above, in case of breakage of sewage pipes in which water pressure is not generated, including when water pressure of a certain pressure is generated due to a fault in a connection part of a water pipe or a waste water pipe, or water does not leak gas, oxygen, nitrogen It can be detected in real time even if leakage of oil and oil leaks, and it can be monitored in real time even when negative pressure is generated due to the breakage of the connection part of the waste transportation pipe by vacuum pressure. Therefore, it is possible to recover at a minimum cost and to prevent large-scale accidents or inconveniences of citizens in advance.

In addition, the existing detection sensor uses part of the jump line connecting the detection line and the detection line of both pipes and uses it as a detection sensor, so that a certain length of detection line is exposed at each connection, so that the energy pulse transmitted from the TDR (detector) Is shortened due to the light emitted to the exposed area, and the monitoring distance is reduced.If water leaks to two or more sensors at the same time, a short occurs due to the attenuation phenomenon. If the detection sensor of the present invention is used, the detection line is not directly exposed and thus attenuation is less generated. Since the detection sensor (box) is configured to be separated from the jump line, the construction is also easy.

In addition, the function is much improved and the cost is greatly reduced than the existing sensor or cover has the effect of reducing the construction cost.

And since the existing cover is used by attaching a pressure sensor to the cover located at the upper part to operate when a pressure above a certain pressure occurs, the parts of excessively expanding rubber are put in each contact for watertightness, and by using many bolts and nuts Not only is it expensive, but it is also expensive to construct and use. However, if the cover of the present invention is used, a separate hose may be provided to allow the contents to be easily passed through the easily designed passage in case of internal leakage, gas leakage or oil leakage. By attaching the sensor, the sensor is operated with minimum pressure or water, so the material cost for manufacturing the cover is less, the construction cost is low, and the construction can be simplified. In particular, there is little concern about the occurrence of defects even if skilled technicians do not do the construction.

Hereinafter, an embodiment of the sensing device of the present invention will be described in detail with reference to the accompanying drawings.

2 is a cross-sectional view showing the overall configuration of the sensing device of the present invention, Figure 3 is a perspective view showing a cover of the present invention.

Welding pipes made by inserting copper wires or optical cables between the outer layers of steel pipes to monitor the damage or leakage of underground buried pipes, or pipes made by winding special sensing tapes inserted with copper or optical cables on the outside of ordinary pipes. System that can be monitored by TDR (measurement device) installed externally by using a jump-coated dedicated jump wire connected by welding, fusion, flange or joint, and inserting a sensing wire It is commercially available.

In order to solve the problems arising in the prior art of using a system as a detection sensor by removing a portion of the coated jump line to check the leakage of the connection using this system, the detection device and the detection sensor of the present invention is devised.

The existing method for detecting leaks in connection parts is to attach a detection sensor that can be detected when leakage occurs at the connection part to the outside of the pipe or joint using adhesive, and this sensor is not completely sealed by the operator's mistake. Even if external water flows in, the water does not go up to the sensor box, and if a leak occurs, the pressure sensor installed at the top of the cover is opened by water pressure so that the pressure sensor is attached to the cover located at the top so that the water can rise to the sensor. It is made by using exclusive cover. If the upper cover is blocked by the pressure sensor and no water pressure is generated, even if external water flows into the pipe material gap, the water does not rise to the sensor under natural pressure. At this time, the detection sensor used is located in the upper part of the detection sensor enclosure consisting of hexahedron by removing some of the coated jump line, and put a ball coated with a metal component buoyant by buoyancy in the lower part of the enclosure to leak more than the pipe connection part. When a certain amount of water pressure is generated, the pressure sensor is operated so that the water is forced out through the pressure sensor so that the metal-coated ball comes up by buoyancy and contacts the exposed sensing line.

The present invention improves the detection performance by changing the shape of the detection sensor and the cover, and overcomes the limitation of detecting only water leakage such as tap water under the existing detection system, and the pipeline of gas, oil, special gas and waste transport pipe It can be applied to check whether the connection is abnormal, and can greatly reduce the manufacturing cost of the sensor, cover manufacturing cost and installation cost of the site.

The detection device of the present invention is to be installed for each connection to check whether the abnormality in real time when the contents leaked from the bonded connection portion 8 of the piping material (7), the contents leaked from the piping material connecting portion (8) to the outside of the contents When a negative pressure occurs due to a breakout or damage to the connection part, the cover 10 having a hole 14 formed on the upper side so that air or the like is easily introduced from the outside, When the negative pressure is generated to enter and exit through the hole 14, the detection sensor 20 to check the abnormality of the connection by the leaked water, gas or oil, and the jump line for connecting the detection lines of the adjacent pipe ( 40) and the cover 10 so as not to be separated by gas pressure or water pressure, and the contents are not leaked between a portion where the cover 10 is in contact with each other or between the cover 10 and the contact surface of the pipe member 7. So that is configured to include an outer surface finishing tape (sheet) (not shown) covering over the cover.

The cover 10 connects a hose 15 to the hole 14 to discharge the leaked contents of the cover out of the cover 10 without introducing external water through the hole 14 to a pipe material height or less. By positioning it, the external water is not normally introduced through the hose 15, but can leak through the hole 14 and the hose 15 when leakage or leakage occurs.

In addition, in order to protect the hose 15 from the external earth pressure or fork crane during construction, the groove 16 may be formed to insert the hose 15 to the outside of the cover, the groove 16 is a work It may be of the (-) or S-shaped (S) type.

In the present invention, the hose 15 connected to the hole 14 is not pulled out, and the distal end portion of the hose 15 is below the pipe material position, and the hose 15 inserted into the groove 16 is protected. To this end, the area may be covered with a strong tape or coated with ceramic or polyurea to form a closed structure.

The cover 10 is preferably made of any one selected from compressed rubber, ABS resin, compressed styrofoam, compressed polyurethane, reinforced plastic, coated iron sheet, the cover 10 is made of compressed styrofoam or compressed polyurethane In this case, even during long-term use, it can be coated with ceramic, polyurea or epoxy on the inside and the outside so as not to be damaged by external pressure or internal water pressure.

Wrap the connection 8 with the cover 10 and then wrap it with a tape or tube containing gypsum, ceramic, polyurea or epoxy to reinforce the watertightness and protect the cover 10 from external pressure, or a flexible tape ( Sheet) and then coated with a resin such as ceramic, polyurea or epoxy.

In addition, the cover 10 is composed of two or more, that is, the upper cover and the lower cover according to the diameter, when the electric method by the sacrificial anode method covers the connecting line connected to the sacrificial anode for each connection portion 8 of a certain distance ( 10) When water is taken out, external water flows in through the hole 12 through which the connection line passes, or when water leaks out from the connection part, it is sacrificed to escape to the hose 15 connected to the hole 14 in the upper part of the cover. In order to maintain the airtightness of the hole 12 through which the anode connection line is passed, a hole 12 into which a predetermined size of water-expandable rubber is inserted may be formed.

The cover 10 is made of an economical material can significantly reduce the manufacturing cost, and can significantly reduce the construction cost to assemble a number of bolts and nuts to withstand the appropriate pressure.

In addition, the area where the covers are in contact with each other, and the area where the cover is in contact with the piping material is first taped, and additionally, the entire cover 10 is wrapped with tape or covered with a tube, and then coated with epoxy, ceramic, polyurea, or the like to finish. Due to the treatment, it is difficult for the leaked contents to escape through the pipe and cover contact portions, and a hose 15 for discharging the contents of the leaked contents through the hole 14 formed on the cover 10 is connected to prevent leakage or leakage. If leaking, it can be checked completely before leaking into the hose. And since the sensor is located on the cover 10, the end portion of the hose 15 is located under the pipe member 7 and the entirety of the remaining is sealed in the exposed state, there is no fear that the sensor is normally operated.

In addition, the cover 10 may selectively use various types of covers in consideration of economical efficiency depending on site conditions. In other words, in a good construction site, compressed styrofoam or compressed urethane foam may be used as it is. If the condition is normal, polyurea, ceramic, or epoxy may be coated on the compressed styrofoam or compressed urethane foam. In order to protect the cover, the cover is covered with a tape (sheet) containing a resin such as gypsum, ceramic, polyurea, polyurethane, etc. on the outside of the cover.

In this case, the hose for effectively discharging the contents inside is exposed to the bottom of the outer surface of the cover, and then the tape (sheet) is covered or the tube is covered so that the contents can be smoothly leaked in case of leakage or leakage. In addition, in order to prevent the hose from protruding to the outside when the taping or the tube work on the outside of the cover 10 to affect the work or the hose 15 is deformed and blocked, the outside of the size of the hose (-) type or S-shaped ( After forming the groove of S), insert the hose into it and attach this part with strong adhesive tape, or integrate the whole outer surface of the cover by coating with resin such as ceramic, polyurea or epoxy.

On the other hand, the detection sensor of the present invention, unlike the existing detection sensor to direct the jump line to cause a short, jump line 40 is directly connected to the detection line of the adjacent pipe and connected to the separate sensor separately produced sensor 20 Mounted on the top of the cover, using a separate connection line 42 to connect the sensor and the jump line 40. One end of the connection line 42 is integrated with the detection sensor, the other end is separated after the part of the jump line 40 is terminated using an anti-corrosive tape 41 and the like.

By doing this, even when the connection part cover 10 is incorrectly installed, the sensor 20 may be prevented from operating even when external water flows into the connection part.

And there are three kinds of detection sensors depending on the application.

First, the detection sensor 20 used in the pipe for transporting water, such as water pipes, heavy water pipes, agricultural water pipes, sewage, waste water pipes, sewer pipes, as shown in Figs. When water leaks into the inlet 22 is formed to the water is introduced, the water is provided with a housing 21 is provided with a space to expand the rubber expandable by the water, and the jump line 40 is directly connected Two connecting wires 42, a copper plate 25 connected to each end of the connecting wire 42 and installed to face each other inside the enclosure 21, and a water expansion attached to the rear surface of the copper plate 25. Made of rubber 24.

In addition, the housing 21 has a space in which the water-expandable rubber 24 can be expanded by water, and when water flows into the inlet 22, the water-expanded rubber 24 is expanded to the copper plate ( 25) is pushed into contact with each other to sense.

The enclosure 21 is composed of a hexahedron, and the water-expanded rubber 24 is expanded by 4-8 times when it comes in contact with water. When the rubber 24 is inflated, the copper plate 25 maintains a contact state for a long time, so that if the water is not pumped, the short ball is separated from the detection line, and thus the problem of the conventional detection sensor that is difficult to locate can be easily solved.

When the sensor is used in the sewage pipe, it is possible to effectively detect a defect in the connection part of the sewage pipe that uses only a part of the space inside the pipe by not installing water pressure in the middle of the connection part.

When the sensor 20 is used in the sewage pipe, it is possible to effectively detect a defect in the connection part of the sewage pipe using only a part of the inner space without the water pressure by installing the middle of the pipe.

Secondly, as a detection sensor for real-time checking of leakage and leakage of connection parts such as pipes for special gas transporting gas, oxygen, nitrogen, etc., or oil supply pipes, as shown in FIGS. 6A and 6B, pipe material connection parts An enclosure 121 having an inlet opening 122 and an outlet opening 123 to flow in and out of the contents leaked from (8), two connecting lines 42 directly connected to the jump line 40, and the connecting line ( Each of the copper plates 124 and 125 is connected to an end of each of the copper plates 124 and 125, and the copper plates 124 and 125 are installed to face each other inside the enclosure 121. Is installed on the side, the other is installed on the outlet 123 side, the copper plate 124 installed on the inlet side forms a V-shaped connecting portion 124a, through the inlet 122 When the gas or oil is introduced, the copper plate 124 is bent to the opposite side Exit 123 side has a configuration for sensing contact with the copper plate (125).

The enclosure 121 is completely sealed except for the inlet 122 and the outlet 123 so that the gas or oil introduced into the inlet 122 may exit through the outlet 123 in FIG. 7. As shown, using a separate hose 126 is coupled to the hole 14 formed on the top of the cover 10 connected to the external hose 15.

In such a sensor, the copper plate 124 installed on the inlet 122 side is easily bent by the pressure when the gas or oil introduced into the inlet 122 exits the copper plate 125 on the outlet 123 side. It is in easy contact with.

8 and 9, the upper portion of the copper plate 324 is formed into a V-shape, and the copper plates 324 and 325 are kept at an appropriate distance. The auxiliary iron plate 327 may be attached to a V-shaped portion of the inlet side copper plate 324, and a magnet 326 may be installed behind the outlet side copper plate 325.

In this case, when a certain amount of leakage or pressure occurs, the auxiliary iron plate 327 is attached to the V-shaped portion of the inlet side copper plate 324 to maintain the short state until repair, and behind the outlet side copper plate 325. When the magnet 326 is installed and the connection part 8 is abnormal, the two copper plates 324 and 325 may be completely contacted and sensed to maximize the effect.

Third, if damage occurs due to pinhole corrosion or internal abrasion at the connection part of the waste transport pipe, negative pressure is generated when the transport pipe is operated. . That is, it can be easily solved by changing the positions of the front and rear surfaces of the copper plate among the internal structures of the sensor which can recognize the leakage or leakage of the gas or oil.

Referring to FIG. 10, when a breakdown occurs in the pipe member 8, the sensor 221 includes an inlet 223 and an outlet 222 so that air is introduced from the outside when the negative pressure occurs. And two connecting lines 42 directly connected to the jump line 40 and copper plates 224 and 225 respectively connected to the ends of the connecting line 42 and installed to face each other inside the enclosure 221. Is made, any one of the copper plate is installed on the inlet 223 side, the other is installed on the outlet 222 side, the upper portion of the copper plate 224 installed on the inlet side V-shaped (V) When the auxiliary iron plate 227 is attached to the V-shaped portion of the copper plate 224, and a magnet 226 is installed behind the outlet side copper plate 225, and a negative pressure is generated so that a connection abnormality occurs. The two copper plates 224 and 225 can be detected in perfect contact with each other. have.

Of course, the inlet groove formed on the inlet side copper plate 224 may be configured to be in contact with the outlet side copper plate 225 by bending the copper plate 224 to the opposite side when the negative pressure is introduced through the inlet.

The sensor of the present invention is the jump line 40 and the sensor 20, 120, 220 is connected to the connection line 42 is integrated, so when the construction site, the jump line 40 is attached to the detection sensor Can be installed in connection with the sensing line of adjacent pipes.

Since the detection sensor of the present invention is in contact with the surfaces of the copper plate, even if water leakage (leakage) or leakage or negative pressure occurs, the detection performance is improved as compared to the conventional method, even if the water in the cover by the water-expanded rubber It can keep the short status continuously and can check the leak accurately. Therefore, when using an intermittent pipeline such as a wastewater pipe, it can solve the problem of detecting a leak during operation and not detecting it when not in operation.

In addition, in the case of the existing leak detection system, instead of making a detection sensor by using a part of the jump line 40 connected to the adjacent pipe, in the present design, a separate detection sensor 20, 120, 220 to check whether there is an abnormality in the connection part. (320) to connect to the jump line 40 using the connecting line 42, and then finished by using a tape 41 to prevent the attenuation of the energy pulse transmitted from the TDR to send out to a far distance than the conventional method This can reduce the number of TDR equipment installed in the field, thereby reducing the cost.

1 is a cross-sectional view showing a conventional sensor;

2 is a cross-sectional view showing the overall configuration of the sensing device of the present invention;

3 is a perspective view showing a cover of the present invention,

Figure 4 shows an embodiment of the sensor of the present invention, a cross-sectional view showing a sensor for water, sewage, heavy water, sewage pipe,

5 is a perspective view showing the sensor of Figure 4,

6a and 6b are views showing another embodiment of the sensor of the present invention, a cross-sectional view showing a sensor for gas, oxygen, nitrogen, oil pipe,

7 is a perspective view showing another embodiment of the sensor of the present invention installed on the cover,

8 is a cross-sectional view showing another embodiment of the sensor of the present invention, a sensor for gas, oxygen, nitrogen, oil pipe,

9 is a perspective view of the sensor of Figure 8,

10 is a cross-sectional view showing another embodiment of a detection sensor of the present invention, a sensor for garbage transport pipe.

<Description of the symbols for the main parts of the drawings>

7: piping material 8: connection part

10 cover 12 hole

14: hole 15: hose

20: sensor 21: enclosure

22: inlet 23: outlet

24: water-expanded rubber 40: jump line

42: connecting line 25: copper plate

Claims (16)

In the sensing device to be installed for each connection to check the abnormality in real time when the contents leak from the bonded connection of the piping material, A cover having a hole formed at an upper side such that air leaks easily from the outside when the contents leak out due to damage to the pipe material connection part, or when negative pressure occurs; It is installed on the inner top of the cover and the contents are leaked out due to the breakage of the connection part or when the air flows through the hole when negative pressure is generated, it is possible to check the abnormality of the connection part by the leaked contents or air pressure. A sensor installed to face the copper plate, and a connecting sensor connected to the copper plate is connected to a jump line to detect an abnormality of the connecting unit by contacting the copper plate when an abnormality occurs in the connecting unit; And an outer finishing member surrounding the cover to prevent the cover from being separated by earth pressure, gas pressure, or hydraulic pressure, and to prevent the contents from leaking between the contact portion of the cover or the outer surface of the cover and the piping material. The method of claim 1, The sensor is to be installed on the upper side inside the cover installed in the connection portion of the pipe material for transporting water, A housing of a hexahedron in which a plurality of inlets through which the water flows is formed when water leaks into the pipe material connection part; Two connection lines directly connected to the jump line, A copper plate connected to each end of the connection line and installed to face each other inside the enclosure; It is made of a water-expanded rubber attached to the back of the copper plate, The housing is provided with a space that the water-expandable rubber can be expanded by water so that when the water enters the inlet, the water-expanded rubber is expanded to detect the copper plate is in contact with each other. The method of claim 1, The detection sensor is to be installed on the upper side inside the cover installed in the connection portion of the piping material for transporting gas or oil, A housing provided with an inlet and an outlet so that the contents leaked from the pipe material connection part flow in and out; Two connection lines directly connected to the jump line, Is made of a copper plate connected to each end of the connecting line, and installed to face each other inside the enclosure, One of the copper plate is installed on the inlet side, the other is installed on the outlet side, The copper plate installed on the inlet side is formed with a V-shaped connection part, and when the gas or oil is introduced through the inlet port, the copper plate is bent to the opposite side by pressure and the connection part contacts the outlet plate copper plate and is detected. Sensing device, characterized in that. The method of claim 3, The detection sensor is attached to the secondary iron plate on the inlet side copper plate so that the short state is maintained until repair, if the leakage occurs, and the magnet is installed behind the outlet side copper plate to detect the two copper plates in perfect contact. Sensing device. The method of claim 1, The sensor is to be installed on the upper side inside the cover installed in the pipe connection material of the waste transport pipe, In case the breakage occurs in the pipe material connection unit, the inlet and outlet are provided so that air is introduced from the outside when the negative pressure is generated to flow into the pipe; Two connection lines directly connected to the jump line, Is made of a copper plate connected to each end of the connecting line, and installed to face each other inside the enclosure, One of the copper plates is installed on the inlet side, the other is installed on the oil outlet side, The copper plate installed on the inlet side is formed with a V-shaped connecting portion, and when the outside air is introduced through the inlet when negative pressure is generated, the copper plate is bent to the opposite side to detect the contact portion by contacting the outlet copper plate. Sensing device, characterized in that. The method of claim 5, The detection sensor is attached to the secondary iron plate on the inlet side copper plate so that the short state is maintained until repair, if the leakage occurs, and the magnet is installed behind the outlet side copper plate to detect the two copper plates in perfect contact. Sensing device. The method of claim 1, The jump line and the detection sensor is connected to the connection line is integrated, and in the case of construction on-site, the detection device is characterized in that the construction is connected to the detection line of the adjacent pipe with the detection line attached to the sensor. The method of claim 1, Sensing device, characterized in that for connecting the hose to the hole so that the outside water does not flow through the hole to leak the contents inside the cover out of the cover, or when the outside air flows when a negative pressure occurs. The method of claim 8, Sensing device, characterized in that to form a groove so that the hose can be inserted to the outside of the cover to protect the hose during earth pressure, rotation pressure or construction. 10. The method of claim 9, The groove is a sensing device, characterized in that made of a straight (-) type or S-shaped (S) type. 10. The method of claim 9, In order to prevent the hose from being separated from the hole or the groove, the connection portion of the hose inserted into the groove is finished with strong tape or finished, or a closed structure is formed by using resin such as ceramic, polyurea, epoxy, etc. Sensing device. The method of claim 1, The cover is made of a material that can withstand the pressure of the outside and the inside, the sensing device, characterized in that made of any one selected from compressed rubber, ABS resin, compressed styrofoam, compressed polyurethane, reinforced plastic, coated steel sheet. The method of claim 12, When the cover is made of compressed styrofoam or compressed polyurethane, the sensing device is coated with a material such as ceramic, polyurea or epoxy on the inside and the outside so as not to be damaged by external pressure or internal water pressure even during long-term use. . The method of claim 1, The outer finishing member is made of any one of the outer finishing tape, sheet, tube containing a resin such as gypsum, ceramic, polyurea, epoxy so as to cover the connection portion to strengthen the watertightness of the cover and withstand the external pressure Sensing device, characterized in that wrapping. The method of claim 1, The cover comprises at least two covers, including an upper cover and a lower cover, The detection sensor of the sewer pipe does not generate pressure is installed in the middle of the pipe connection, the other detection sensor is characterized in that installed in the upper cover. The method of claim 1, The cover comprises at least two covers, including an upper cover and a lower cover, In the case of electric method by sacrificial anode method, the hole is formed to easily pull out the connection line connected to the sacrificial anode to the outside of the cover for each distance of the connection part. Sensing device characterized in that the expansion rubber is inserted into the hole.

Images