JP3638067B2 - A method for determining the position of a nail punched into a hot water pipe of a floor heating system - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a method for determining the position of a punched nail when a hot water pipe in a hot water panel (mat) for floor heating is punched.
[0002]
[Prior art]
There are four types of floor heating system installation: flooring, cork, carpet, and tatami. In this construction example, especially in the flooring finish, the flooring material is constructed by a method of driving nails from the top to the wood called the small joists provided in the warm water panel or the warm water pipe. You may hit nails.
[0003]
Conventionally, nailing (punching) of such nails is often found by an airtight inspection performed at the end of construction, but cannot be found (detected) by an airtight inspection if the adhesion between the hot water pipe and the punched nail is good. Sometimes.
Therefore, the present applicant forms a conductive layer on the hot water panel, applies a voltage between the water in the hot water pipe and the conductive layer, and an electrical short circuit (conduction) occurs between the conductive layer and the water. In such a case, a nail punching monitoring method for determining that this short circuit is caused by punching of a nail as a conductor has been proposed (Japanese Patent Application Nos. 8-260435 and 8-260436).
[0004]
[Problems to be solved by the invention]
However, in the above-described nail punching monitoring method, the nail punching itself can be found, but the position is not known. For this reason, the flooring floor is peeled off while relying on experience and intuition to determine the punching position of the nail, but the probability of finding it at one time is low, and in extreme cases it will peel off more than half of the flooring floor There is also a waste of time and money.
[0005]
The present invention is proposed in view of such points, and can specify a nail punching position in a very narrow range, and can deal with a case where a nail is punched only by peeling off only the flooring flooring at this position. The purpose is to propose a method.
[0006]
[Means for Solving the Problems]
The method for determining the punching position of the nail proposed to achieve the above object is as follows.
[0007]
1. A hot water pipe with the inlet side connected to a header arranged at one location of the panel is meandered in the panel, the outlet side of the hot water pipe is connected to the header, and a conductive layer is formed on the entire top surface of the panel An inlet electrode and an outlet electrode are provided on the inlet side and outlet side of the hot water pipe connected to the header so as to contact the water in the hot water pipe, respectively, and in the vicinity of the header When a nail punching inspection is performed, a hot water pipe is filled with water, and a voltage is first applied between the inlet side electrode and the conductive layer side electrode. If there is no change in the resistance value, it is determined that the nail is not punched. On the other hand, if there is a change in the resistance value, the resistance value at this time is measured, and the outlet side electrode and the conductive layer side are further measured. Between electrodes Obtains the ratio of the both resistance values by measuring the resistance value at this time by applying a voltage, this ratio, from the inlet side in the length direction of the hot water pipe, by replacing the ratio of the outlet side, floor A method for determining the position of a nail punched into a hot water pipe of a heating device.
[0008]
2. A hot water pipe with the inlet side connected to a header arranged at one location of the panel is meandered in the panel, the outlet side of the hot water pipe is connected to the header, and a conductive layer is formed on the entire top surface of the panel In the hot water panel, a resistor having a constant width is disposed along the upper portion of the hot water pipe, and an insulator layer is formed between the resistor and the conductive layer. In addition to providing an inlet side electrode on the inlet side, an outlet side electrode on the outlet side, and further providing the conductive layer side electrode in the vicinity of the header in the conductor layer, First, if a voltage is applied between the entrance side electrode and the conductive layer side electrode and there is no change in the resistance value at this time, it is determined that there is no punching of the nail. of time In addition to measuring the resistance value, the distance from the inlet side of the hot water pipe to the nail punching point is obtained from the amount of change in the resistance value. A resistance value is obtained by applying a voltage between the conductive layer side electrodes, and the ratio is obtained by comparing the resistance value obtained on the inlet side with the resistance value obtained on the outlet side. A method of obtaining the position of a nail punched into a hot water pipe of a floor heating device by replacing the ratio from the inlet side to the outlet side in the vertical direction .
[0009]
3. The floor heating according to claim 2, wherein the resistor is formed in a tape shape having a width equal to or more than three times the outer diameter of the hot water pipe, and the tape-shaped resistor is disposed along the upper portion of the hot water pipe. A method for determining the position of a nail punched into a hot water pipe of a device.
[ 0010 ]
[Action]
In the case of the present invention, first, a voltage is applied between the conductive layer and the inlet side electrode of the hot water pipe. In this case, for example, if there is no change in the resistance value between the conductive layer and the entrance side electrodes, it can be determined that there is no punching of nails.
[ 0011 ]
On the other hand, if there is a change in resistance, a short circuit in any position, it is determined that that is used to be a punching nails, this time, not only the inlet side, also change in resistance at the outlet side And determine the ratio of both resistance values. Since the total length of the hot water pipe is known in advance, the punching position of the nail can be specified by replacing the ratio of the resistance values with the ratio of the length from the inlet side to the outlet side of the hot water pipe. The above is the case of the invention according to claim 1.
With respect to the invention according to claim 2, a voltage is applied to the conductive layer side electrode and the entrance side of the resistor and, if necessary, to the exit side electrode, and a nail punching position is obtained in the same manner as in the invention of claim 1 above. To identify.
[ 0012 ]
DETAILED DESCRIPTION OF THE INVENTION
In the present invention, in the case of claim 1, no special device is used for the hot water panel. The hot water pipe is usually a crosslinked bottom density polyethylene, the panel (mat) is made of expanded polyethylene or expanded polystyrene, and the conductive layer is an aluminum sheet layer attached to the surface of the panel for heat transfer. It is because it can also serve. However, the conductive layer may be formed of other materials having excellent conductivity and heat transfer performance, for example, a copper sheet. In the present invention, the conductive layer is not limited to the aluminum sheet. In addition, you may comprise so that an insulation may be aimed at by interposing an electrical insulation sheet between a warm water pipe and a conductive layer as needed.
[ 0013 ]
Electrodes are provided in the aluminum sheet and the hot water pipe as an example of the conductive layer so as to be in contact with water. Then, when resistance is measured by applying a voltage between the electrode on the aluminum sheet side and the electrode on the inlet side or outlet side of the hot water pipe filled with water, the electrical resistance can be regarded as insulation when there is no nail punching. Although the value is shown, if the nail is punched, the aluminum sheet and the water in the hot water pipe are in a conductive state, that is, an electrical short circuit state, and at this time, the resistance value changes. When the resistance value is changed in this way, the resistance value is measured at the outlet side electrode in addition to the inlet side electrode of the hot water pipe, and the ratio between the two is obtained. In addition, you may make it extend the lead wire for an application from each electrode.
Since the total length of the hot water pipe is known in advance, the punching position of the nail can be specified by replacing the ratio of the resistance values with the ratio of the length from the inlet / outlet of the hot water pipe.
[ 0014 ]
[Example 1]
This point will be described in more detail with reference to FIG. In FIG. 1, 1 is a hot water panel, 2 is a hot water pipe piped to the hot water panel 1, 3 is an aluminum sheet, 4 is a header, and the inlet A and outlet B of the hot water pipe 2 are connected to the header 4. Has been. C is a nail punching position. In a state where the hot water pipe 2 is filled with water, the total resistance of water between A and C and B and C is 10 MΩ. On the other hand, since the volume resistivity of the aluminum sheet 3 is 5.5 × 10 −8 (Ω · m), it can be sufficiently ignored when viewed from the resistance of the water. Moreover, since the cross-sectional area of the hot water pipe 2 is uniform, the punching position of the nail can be obtained from X: Y = (resistance between A and C) :( resistance between B and C).
[ 0015 ]
However, since the resistance value varies depending on the state of nail penetration or the resistance value of water in the pipe, the position is actually specified by assembling a bridge circuit as shown in FIG.
In this bridge circuit, the variable resistance Rv is adjusted so that the pointer value of the galvanometer becomes zero, and X (distance between A and C) and Y (B) from the ratio of Rv and fixed resistance Rc at that time -Distance between -C). In this way, if a bridge circuit is built, neither an ammeter nor a mega tester is required, and it becomes unnecessary to correct the contact resistance of the nail part and the resistance value of the water in the hot water pipe, making it very easy and accurate. The punching position can be obtained.
[ 0016 ]
If the above Symbol Example 1, it is a method for measuring without making any hand in warm water panel which has been conventionally used, for example, the outer diameter of the hot water pipe on the hot water pipe and the same or more, 3 times less Even if a tape-shaped resistor having a width of 5 mm is arranged and a voltage is applied between the resistor and the aluminum sheet and the resistance value is measured, the position of the punched nail, that is, the distance to the nail can be obtained. In this method, if the resistance value per length of the resistor is known in advance, the distance from the application point to the nail punching position can be obtained from the amount of change in the resistance value .
[ 0017 ]
A method for obtaining this distance will be described with reference to FIG.
In FIG. 3, A-E-C is a conductive layer, B-F-D is a flexible tube, E-F is a punched portion of a nail, R1 is an electrical resistance between A-E, and R2 is an electrical resistance between E-C. , R3 is the electrical resistance (contact resistance + nail resistance) of the nailing portion.
Here, a voltage V is applied to the end points A and B, and a current i12 flowing through the circuit AEFB is measured.
[ 0018 ]
If the resistance of the nail R3 can be ignored by Ohm's law,
R1 + R3 = V / i12
Since R3 = 0 can be considered, R1 = V / i12 [Ω].
Since the resistance value R [Ω / m] per unit length is known, the nail punching position x [m] is x [m] = R 1 / R [m].
Thus, the nail punching position can be estimated.
When the resistance value of the conductive layer per unit length is unknown, R2 can be estimated in the same manner by applying a voltage to the other ends C and D, and R1: R2 = i1: i2 can be calculated.
[ 0019 ]
Figure 4 is a cross-sectional view of the hot water panel 1, 2 is heated pipe, 3 is the aluminum sheet, A 'is the entrance-side electrode position, B' is the exit-side electrode position, D is aluminum sheet side electrode, is 5 A A voltage application measuring circuit for applying a voltage between -D and BD and measuring the resistance value at that time, 6 is between A'-D and B'-D measured by the voltage application measuring circuit 5 determine the specific resistance value is an arithmetic circuit for calculating the ratio of the distance from this ratio the electrode a, to a position of the nail punched respectively B.
[ 0020 ]
[ Example 2 ]
In the second embodiment , as shown in FIG. 5, a resistor (tape) 7 having a double width of the outer diameter of the hot water pipe 2 is disposed on the hot water pipe 2 , and the inlet side electrode and the conductive layer are arranged on the inlet side. by applying a voltage between the resistor 7 and the aluminum sheet 3 from the side electrode, calculating a resistance value per length of the known resistor 7, the inlet-side short-circuited portion from the electrode, the distance to that is punched out nails To do. Reference numeral 8 denotes an electrical insulator layer. Note that the resistor 7 is kept as close to the hot water pipe 2 as possible. In the case of a flooring floor, the resistor 7 is usually fixed by driving a nail diagonally, so that it should be at least about three times the outer diameter of the hot water pipe 2 when viewed from the safety side. On the other hand, in the case of the construction example in which the nail is driven vertically, the lower limit width is limited to the same width as the outer diameter of the hot water pipe 2. There is.
The measurement method of Example 2 is performed in the same manner as the procedure of Example 1 above.
In Example 2, the resistance of the conductive layer may be unknown. At this time, in conjunction with the measurement of the resistance value from the inlet side, the resistance value between the outlet side electrode and the conductive layer is measured to obtain the ratio, and this ratio is calculated from the inlet side of the hot water pipe 2 and from the outlet side. Replace the length ratio to specify the position.
[ 0021 ]
Figure 6 is an example of forming an insulating layer 10 and the conductive layer 11 and resistive layer 9 on the surface of the hot water pipe 2, in this case, the distance to the nail punched in the same manner as the actual施例2 Can be sought .
[ 0022 ]
【The invention's effect】
Since the present invention can determine the position of the nail punched into the floor heating device by the above method, when the nail is punched and the flooring floor is peeled off, the position can be specified in a narrow range, so that repair etc. There is no needless labor and cost.
[Brief description of the drawings]
FIG. 1 is an explanatory diagram of a method for determining the position of a punched nail according to a first embodiment.
FIG. 2 is an explanatory diagram of a bridge circuit for determining the position of a punched nail.
FIG. 3 is an explanatory view of a measurement principle for obtaining a position of a nail punched from a resistance value of a resistor.
FIG. 4 is an explanatory diagram of a method for specifying a nail punching position according to the first embodiment.
FIG. 5 is an explanatory diagram of Example 2 in which a resistor is arranged on a hot water pipe.
FIG. 6 is an explanatory diagram of an example in which a resistance layer, an insulating layer, and a conductive layer are formed on a hot water pipe so that the position of a punched nail can be obtained.
[Explanation of symbols]
DESCRIPTION OF SYMBOLS 1 Hot water panel 2 Hot water pipe 3 Aluminum sheet 4 Header 5 Voltage application measurement circuit 6 Arithmetic circuit 7 Resistor 8 Insulator layer 9 Resistive layer 10 Insulating layer 11 Conductive layer A Inlet A 'Inlet side electrode B Outlet B' Outlet side electrode C Nail punching position D Aluminum sheet side electrode

Claims (3)

A hot water pipe with the inlet side connected to a header arranged at one location of the panel is meandered in the panel, the outlet side of the hot water pipe is connected to the header, and a conductive layer is formed on the entire top surface of the panel An inlet electrode and an outlet electrode are provided on the inlet side and outlet side of the hot water pipe connected to the header so as to contact the water in the hot water pipe, respectively, and in the vicinity of the header When a nail punching inspection is performed, a hot water pipe is filled with water, and a voltage is first applied between the inlet side electrode and the conductive layer side electrode. If there is no change in the resistance value, it is determined that the nail is not punched. On the other hand, if there is a change in the resistance value, the resistance value at this time is measured, and the outlet side electrode and the conductive layer side are further measured. Between electrodes Obtains the ratio of the both resistance values by measuring the resistance value at this time by applying a voltage, this ratio, from the inlet side in the length direction of the hot water pipe, by replacing the ratio of the outlet side, floor A method for determining the position of a nail punched into a hot water pipe of a heating device. A hot water pipe with the inlet side connected to a header arranged at one location of the panel is meandered in the panel, the outlet side of the hot water pipe is connected to the header, and a conductive layer is formed on the entire top surface of the panel In the hot water panel, a resistor having a constant width is disposed along the upper portion of the hot water pipe, and an insulator layer is formed between the resistor and the conductive layer. In addition to providing an inlet side electrode on the inlet side, an outlet side electrode on the outlet side, and further providing the conductive layer side electrode in the vicinity of the header in the conductor layer, First, if a voltage is applied between the entrance side electrode and the conductive layer side electrode and there is no change in the resistance value at this time, it is determined that there is no punching of the nail. of time In addition to measuring the resistance value, the distance from the inlet side of the hot water pipe to the nail punching point is obtained from the amount of change in the resistance value. A resistance value is obtained by applying a voltage between the conductive layer side electrodes, and the ratio is obtained by comparing the resistance value obtained on the inlet side with the resistance value obtained on the outlet side. A method of obtaining the position of a nail punched into a hot water pipe of a floor heating device by replacing the ratio from the inlet side to the outlet side in the vertical direction . The floor heating according to claim 2, wherein the resistor is formed in a tape shape having a width equal to or more than three times the outer diameter of the hot water pipe, and the tape-like resistor is disposed along the upper portion of the hot water pipe. A method of determining the position of a nail punched into the hot water pipe of the device.

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