CN105987794A - Alkaline solution leakage sensing device - Google Patents
Alkaline solution leakage sensing device Download PDFInfo
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- CN105987794A CN105987794A CN201510042232.8A CN201510042232A CN105987794A CN 105987794 A CN105987794 A CN 105987794A CN 201510042232 A CN201510042232 A CN 201510042232A CN 105987794 A CN105987794 A CN 105987794A
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Abstract
The invention relates to an alkaline solution leakage sensing device, which comprises a band-based film layer made of film materials, an electric lead formed on the upper surface of the band-based film layer along the length direction, and a coating layer coated onto the band-based film layer to prevent the electric lead from being exposed to the outside. The coating layer changes in resistance value when reacting with the alkaline solution. According to the technical scheme of the invention, the alkaline solution leakage sensing device can be easily mounted in a pipeline, and is low in manufacturing cost and strong in price competitiveness. In addition, the device can make an alarm sound according to the types of alkaline solutions. Therefore, the device can quickly and accurately take corresponding measures for various leaked solutions.
Description
Technical field
The present invention relates to a kind of alkaline solution leakage sensing device, particularly relate to the alkaline solution leakage sensing device of a kind of leakage for sensing the alkaline matters such as caustic soda, ammoniacal liquor, NaOH and leakage solution type.
Background technology
The applicant has applied for multinomial relevant banding leakage sensor patent, and obtains mandate (patent No.: 10-0909242,100827385).Described banding leakage sensor may be disposed at the place easily leaking and leaks for sensing.
As depicted in figs. 1 and 2, described leakage sensor 100 includes from the bottom to top lower adhesion layer the 120th, basal film layer 110 and the upper protective film layer 130 that lamination is arranged successively.
Described lower adhesion layer 120, in viscose glue banding, sticks to the position leaking；Described basal film layer 110 above is formed with conductor wire the 111st, 112, and in order to enable to form conductor wire the 111st, 112 with mode of printing, described basal film layer 110 is made up of the film of PET, PE, PTFE, PVC or other polytetrafluoroethylene (PTFE) series material.
The upper surface of described basal film layer 110 is provided with in banding, in a certain distance apart from one another, the conductor wire that be arranged in parallel along its length the 111st, 112.The 111st, described conductor wire 112 is formed by electrically conductive ink or silver (Silver) compound printing.
Described upper protective film layer 130 lamination is arranged above basal film layer 110, is used for protecting conductor wire the 111st, 112 so that it is from external damage.Described upper protective film layer 130, such as basal film layer, is also made up of PET, PE, PTFE, PVC or other polytetrafluoroethylene (PTFE) series material, and is being provided with sensing bore 131 in a certain distance apart from one another with conductor wire the 111st, 112 corresponding positions.
Therefore, when there is drainage, the water spilling is flowed into by the sensing bore 131 at the place of leaking, and makes two conductor wires be energized under the effect of water.Now, remote controllers are according to its "on" position, i.e. whether the state sensing forming Guan Bi circuit leaks, and sends associated alarm.
But, this film-type leakage sensor 100 can detect that the leakage of conductive solution because having electric conductivity, however, it is very difficult to detect alkaline solution selectively.
It is, the alkaline solution of water or alkaline matter all has electric conductivity, therefore, it is impossible to induce the leakage of alkaline solution selectively.
Content of the invention
It is an object of the invention to make up the deficiencies in the prior art, provide a kind of on conductor wire coating be dissolved only in alkaline solution and water-fast coat, in order to detect the alkaline solution leakage sensing device of alkaline solution selectively.
It is a further object of the present invention to provide a kind of based on the upper and lower resistance limit value of basic resistance value setting, by measuring the time that resistance value changes in the range of resistance limit value, identify the alkaline solution leakage sensing device of the solution type of leakage.
To achieve these goals, this invention takes following technical scheme:
Conductor wire and the material being made resistance value change by reacting on alkaline solution that the alkaline solution leakage sensing device of the present invention by the basal film layer of film material, is formed along its length at the upper surface of described basal film layer form and are coated on the coat making described conductor wire not expose above basal film layer and constitute.
The above lamination of described coat is provided with the upper protective film layer being made up of film material, and described upper protective film layer is formed in a certain distance apart from one another and for making the conductor wire on basal film layer upwards expose sensing bore.
Described coat is mixed by 70～99 weight percentage of silicon Series of Polyurethane resins and 1～30 percentage by weight polystyrene resin phase.
The mixture that described coat is dissolved or corroded by 50～98 percentage by weights the resin material in alkaline solution, 1～50 percentage by weight volatile solvent and 1～10 percentage by weight curing agent is formed.
Described resin material is alkyd resin, Merlon (PC), polymethyl methacrylate (PMMA), polyarylate (PAR), PEI (PEI), polyimides (PI), phenolic resin (PF), polyamidoimide (PAI), polybutylene terephthalate (PBT) (PBT), polyacetal copolymer, any one in polymer composite.
Described volatile solvent is solvent series solvent.
Described curing agent is isocyanates or melamine.
Conductor wire that the alkaline solution leakage sensing device of the present invention by the basal film layer of film material, is formed along its length at the upper surface of described basal film layer and for covering described conductor wire and being dissolvable in water the coat of alkaline solution and constitute alkaline solution sensor, being connected with controller on described alkaline solution sensor, described controller is for generating alarm according to the resistance value changing in time while described conductor wire supplies remote sensing power supply.
Alkaline solution of the present invention leakage sensing device is by the basal film layer of film material, constituted alkaline solution sensor at the conductor wire that the upper surface of described basal film layer is formed along its length and the material that makes resistance value change to react on alkaline solution is formed, being connected with controller on described alkaline solution sensor, described controller is for generating alarm according to the resistance value changing in time while described conductor wire supplies remote sensing power supply.
Alkaline solution of the present invention leakage two conductor wires being put by being separated by side by side of sensing device and be coated on the clad outside described conductor wire with the material being dissolved in alkaline solution and constituted alkaline solution sensor, being connected with controller on described alkaline solution sensor, described controller is for generating alarm according to the resistance value changing in time while described conductor wire supplies remote sensing power supply.
It is set with the reference resistor value of described alkaline solution sensor in described controller, described reference resistor value "+" direction and "-" direction setting have upper limit resistance value and the lower resistance value of alarm set value.
Described conductor wire is by the upper surface formation adhesive agent at basal film layer, and sprays conductive powder on described adhesive agent and formed.
Alkaline solution of the present invention leakage sensing device includes the basal film layer of film material, at the above conductor wire being formed along its length of described basal film layer, described basal film layer is formed by synthetic resin material, and described conductor wire is mixed by conductive carbon 50～99 percentage by weight and synthetic resin adhesive 1～50 percentage by weight and formed with mode of printing printing.
Described conductive carbon dispersion liquid is activated carbon or carbon black or CNT (CNT) or Graphene (graphene) or carbon black powder.
Described adhesive is alkyd resin, Merlon (PC), polymethyl methacrylate (PMMA), polyarylate (PAR), PEI (PEI), polyimides (PI), phenolic resin (PF), polyamidoimide (PAI), polybutylene terephthalate (PBT) (PBT), polyacetal copolymer, any one in polymer composite.
Described conductor wire is formed side by side by the first conductor wire and the second conductor wire, and described first conductor wire and the second conductor wire are mixed with adhesive by activated carbon or carbon black or CNT (CNT) or Graphene (graphene)；Or when described first conductor wire is made up of silver compound or sheet metal or other electric conductors, described second conductor wire is then mixed with adhesive by activated carbon or carbon black or CNT (CNT) or Graphene (graphene).
Spraying (sputtering) technique is utilized to form described conductor wire.
The alkaline solution leakage sensing device of the present invention utilizes the material being dissolved in alkaline solution at the above formation coat of conductor wire, makes two conductor wires only be energized under the effect of alkaline solution, thus can accurately sense alkaline components；Further, described conductor wire is due in banding, therefore, is not only easy to be arranged on pipeline etc., and low cost of manufacture, there is stronger price competitiveness.
Additionally, the present invention also can sound the alarm according to alkaline solution species, therefore, quickly and accurately corresponding measure can be taked to various leakage solution.
Brief description
Fig. 1 is the STRUCTURE DECOMPOSITION schematic diagram of existing leakage sensor.
Fig. 2 is the sectional drawing of existing leakage sensor.
Fig. 3 is alkaline solution of the present invention leakage sensing device decomposition texture schematic diagram.
Fig. 4 is the sectional drawing of alkaline solution of the present invention leakage sensing device.
Structural representation when Fig. 5 a is to be connected with controller in alkaline solution of the present invention leakage sensing device embodiment one and embodiment two.
Circuit diagram when Fig. 5 b is to be connected with controller in alkaline solution of the present invention leakage sensing device embodiment one and embodiment two.
Fig. 6 is the schematic diagram that conductor wire resistance value is dissolved with coat or corroded and changes.
Structural representation when Fig. 7 a is to be connected with controller in alkaline solution of the present invention leakage sensing device embodiment three.
Circuit diagram when Fig. 7 b is to be connected with controller in alkaline solution of the present invention leakage sensing device embodiment three.
Fig. 8 is that controller sends the state diagram of alarm according to the resistance value changing with the alkaline solution species of leakage.
Fig. 9 is the another kind of structural representation of alkaline solution sensor of the present invention.
Figure 10 and Figure 11 is that conductor wire forms schematic diagram.
In figure: the 210th, basal film layer；211st, the 212nd, conductor wire；220th, lower adhesion layer；230th, upper protective film layer；231st, sensing bore；240th, coat；300th, controller；400th, top connector；500th, terminator terminating junctor.
Detailed description of the invention
The present invention is described in detail below in conjunction with the accompanying drawings.
The basic structure of alkaline solution sensor 200 of the present invention is identical with the structure shown in Fig. 1 and Fig. 2.The alkaline solution sensing device of the present invention includes from the bottom to top lower adhesion layer the 220th, basal film layer the 210th, coat 240 and the upper protective film layer 230 that lamination successively arranges, and described basal film layer 210 is formed conductor wire the 211st, 212.At this mainly to for cover basal film layer 210 and conductor wire the 211st, 212 the composition material of coat 240 illustrate.
It is known that the aqueous slkali of the alkaline matters such as caustic soda, ammoniacal liquor, NaOH has electric conductivity, the 211st, the conductor wire utilizing conductive ink or the conductive material such as silver compound, sheet metal to be formed 212 does not dissolves in alkaline solution.
In the embodiment of the present invention one, described coat 240 is mixed by 70～99 weight percentage of silicon Series of Polyurethane resins and 1～30 percentage by weight polystyrene resin phase, so that it is water insoluble and be dissolved only in alkaline solution.
The purpose using silicon Series of Polyurethane resin is in order to waterproof, owing to described polyurethane resin is water insoluble, therefore can stop current direction conductor wire the 211st, 212, thus prevent the irregular operating being caused by water, and make coating liquid easily be attached to basal film layer 210.
As shown in Figure 3, Figure 4, by the coating liquid of mixing with 2～20 thickness be coated on the upper surface of described basal film layer 210 forming coat 240, be used for covering conductor wire the 211st, 212.
The above lamination of the basal film layer 210 being coated with described coat 240 is provided with upper protective film layer 230, and described upper protective film layer 230 is used for protecting conductor wire the 211st, 212 so that it is not by outside stimulus.Described upper protective film layer 230 such as basal film layer 210; also by PET, PE, PC, PI, PTFE, PVC or other polytetrafluoroethylene (PTFE) series material formed, the corresponding conductor wire of described upper protective film layer 230 the 211st, 212 position on be equipped with sensing bore 231 in a certain distance apart from one another.
That is, it is being easier the outdoor by external environment influence, in order to protect the best lamination of coat 240 to arrange upper protective film layer 230, then in indoor according to circumstances lamination can arrange or be not provided with upper protective film layer 230.
The mixture that coat 240 in the embodiment of the present invention two is dissolved or corroded by 50～98 percentage by weights the resin in alkaline solution, 1～50 percentage by weight volatile solvent, 1～10 percentage by weight curing agent mix, is coated with (Bar by bar type
Coating), slit is coated with the mode such as (slot die), intaglio plate coating and is formed.
Described resin can use any one in alkyd resin, Merlon (PC), polymethyl methacrylate (PMMA), polyarylate (PAR), PEI (PEI), polyimides (PI), phenolic resin (PF), polyamidoimide (PAI), polybutylene terephthalate (PBT) (PBT), polyacetal copolymer；Volatile solvent can use solvent series (MEK, THF, toluene, ECA, BCA etc.)；Curing agent can use isocyanates or melamine.
Resin as above is dissolved in alkaline solution, but water insoluble.When being coated with above-mentioned resin, volatile solvent and curing agent are used for making its rapid solidification, thus are stably formed the coat 240 of printing.
Described coat 240 can be formed by the various polymer composites of not 100% insulator, and the 211st, described conductor wire 212 can be made up of electrically conductive ink or silver compound.
Below, the sensing process that the example being provided with upper protective film layer 230 by lamination leaks sensing device to alkaline solution of the present invention illustrates.
Alkaline solution of the present invention leakage sensing device due in banding, can twine and set or adhere to it may happen that the welding position in the storage pond such as the pipeline junction of alkaline solution leakage or tank car, or adhere to indoor or outdoors wall or ground.
When alkaline solution is flowed into by the sensing bore 231 of upper protective film layer 230, the alkaline solution of leakage is contacted with coat 240 and carries out reacting with the resin forming coat 240 and make resistance value change.
I.e., coat 240 has bigger resistance value before contacting with alkaline solution and does not makes conductor wire the 211st, 212 be in "on" position, when coat 240 is contacted with alkaline solution, resin dissolves under the effect of alkaline solution or corrodes, and mix with the alkaline solution phase with electric conductivity, under the alkaline solution effect of mixing, the resistance value of coat 240 diminishes, so that the 211st, conductor wire 212 is in "on" position.Now, remote controllers receive power on signal, judge whether sewing of alkaline solution with this.
As shown in Figure 5 a, the two ends of alkaline solution sensor 200 are connected with top connector 400 and terminator terminating junctor 500, described top connector 400 is connected with controller 300, and described terminator terminating junctor 500 then connects conductor wire the 211st, 212 in the termination of alkaline solution sensor 200.
As shown in Figure 5 b, when the first conductor wire 211 and the second conductor wire 212 are energized and make resistance value change, whether long-range controller 300 can judge the leakage of alkaline solution by the change of resistance value.
Be above to conductor wire the 211st, 212 the explanation of the above present configuration being formed with coat 240 but it also may take conductor wire the 211st, 212 structure reacting itself with alkaline solution.
To this end, described conductor wire is the 211st, 212 by 50～99% activated carbons or CNT (CNT:Carbon Nano
Or Graphene (Graphene) or carbon black (Carbon Tube)
Etc. black) there is the linear conductive carbon dispersion liquid and 1～50% of conduction and utilize alkyd resin, Merlon (PC), polymethyl methacrylate (PMMA), polyarylate (PAR), PEI (PEI), polyimides (PI), phenolic resin (PF), polyamidoimide (PAI), polybutylene terephthalate (PBT) (PBT), polyacetal copolymer, in polymer composite, any one adhesive mixes and forms electric conductive carbon printing ink, described electric conductive carbon printing ink can be passed through intaglio printing, silk screen prints, the various mode of printing such as air brushing is printed on basal film layer 210, to form conductor wire 211, 212.
The 211st, described conductor wire 212 can be made up of various ways, as shown in table 1.
Table 1:
When the first conductor wire 211 and the second conductor wire 212 are mixed with adhesive by activated carbon or carbon black or CNT (CNT) or Graphene (graphene), sensing bore 231 is set in the position corresponding with described first conductor wire and the second conductor wire.
But, when the first conductor wire 211 is made up of electric conductors such as silver compound, sheet metal, electrically conductive inks, when second conductor wire 212 is then mixed with adhesive by activated carbon or carbon black or CNT (CNT) or Graphene (graphene), only sensing bore 231 is set in the position corresponding with the second conductor wire 212.
This is because need when the first conductor wire 211 is formed by the more weak material of alkali resistance solution ability to be protected.
When there is leakage in alkaline solution, alkaline solution is flowed into by the sensing bore 231 that leak occurs, with constitute conductor wire the 211st, 212 adhesive react, and As time goes on described adhesive generation bulging, make the arrangement generation avalanche of conductive carbon ion, as shown in Figure 6.
Thus, conductor wire the 211st, 212 resistance value increase, remote controllers by receive described conductor wire the 211st, 212 increased resistance value, it may be judged whether have alkaline solution to leak.
Structural representation when Fig. 7 a is to be connected with controller in alkaline solution of the present invention leakage sensing device embodiment three, circuit diagram when Fig. 7 b is to be connected with controller in alkaline solution of the present invention leakage sensing device embodiment three.First conductor wire 211 of embodiment three is made up of electric conductors such as silver compound, sheet metal, electrically conductive inks, second conductor wire 212 is mixed with adhesive by activated carbon or carbon black or CNT (CNT) or Graphene (graphene), and the second conductor wire 212 reacts with alkaline solution and makes resistance value change.
Alkaline solution includes caustic soda, ammoniacal liquor, NaOH etc., of a great variety.Use as described above by conductor wire the 211st, 212 energising make the structure that resistance value changes, the resistance change situation that can only occur according to leaking with alkaline solution detect leak condition, and is difficult to confirm the species of the alkaline solution of leakage.
The present invention can confirm to occur the species of the alkaline solution of leakage according to time dependent resistance value.
Described controller 300 receives increased resistance value or conductor wire the 211st, 212 increased resistance value occurring because of mutual energising of the conductor wire 212 described in embodiment the first, embodiment two and embodiment three, and confirm the resistance value changing in time, according to the species of its result identification alkaline solution.
The running status chart of the controller 300 according to the resistance change situation identification alkaline solution species between two conductor wires the 211st, 212 when Fig. 8 is the coat 240 being formed such as embodiment one and embodiment two for explanation.Described controller 300 is set with the reference resistor value of the sensor length based on alkaline solution sensor 200, on the basis of described reference resistor value, be set with "+" compensate (offset) value and "-" offset, to compensate the change of the self-resistance value causing because of factors such as outside temperature, humidity, electric noise, physical contacts.
Described offset can be adjusted according to the installation environment of alkaline solution sensor 200.
Described controller 300 be set be positioned at reference resistor value "+" alarm set value (High Limit) in direction, i.e. upper limit resistance value and the alarm set value (Low Limit) being positioned at resistance value "-" direction, i.e. lower resistance value.Can adjust sensing sensitivity by the scope regulating alarm set value.
It when alkaline solution occurs leakage, is gradually lowered and enters the time in range of set value by the resistance value between mensuration conductor wire the 211st, 212, identify the species of alkaline solution.
For example, when chemical solution A leakage, when contacting with coat 240, coat 240 dissolves or is etched, and makes resistance value change.At this moment, the time in the range of controller 300 measures the resistance value entrance alarm set value starting to change to change from resistance value, and according to the species of its minute identification alkaline solution.
For chemical solution B, chemical solution C and chemical solution D, compared with chemical solution A, the time used in the range of resistance value starts to change to enter alarm set value is shorter, and described controller 300 is identified the alkaline solution species of leakage by measuring this kind of time.
When the increased resistance value of various chemical solutions is consistent with alarm set value (High Limit), send alarm at this positioner 300, continue the change of induced electricity resistance afterwards.When a certain specified chemical solution is such as chemical solution D, resistance value changes and exceeds alarm set value (Low
Limit), when, controller 300 is beyond alarm set value (Low
Limit) position sends alarm.
Various alkaline solution time dependent resistance value data are stored in described controller 300, therefore, start to change to the time in the range of increased resistance value enters alarm set value from resistance value by measuring, send alarm for the i.e. alkaline solution species of the chemical solution corresponding to this time.
For embodiment three, when under the effect of alkaline solution, the resistance value of conductor wire 212 increases, elapsed time is longer, and resistance value is bigger.
First, embodiment two and embodiment three i.e., according to embodiments of the present invention, when conductor wire the 211st, 212 resistance value be decreased or increased when, the alkaline solution species of leakage according to resistance value degree over time, can be identified.
In addition, alkaline solution of the present invention leakage sensing device can substitute described banding pattern alkaline solution sensor 200 with cable type sensors.As it is shown in figure 9, the 610th, cable type sensors 600 by two strands of conductor wires 620 is separated by side by side and puts, the clad 630 being made up of the material being dissolved in alkaline solution can be coated outside it.
Described clad 630 can use the material coating of the coat 240 being same as the embodiment of the present invention one and embodiment two to form, as long as the various materials dissolving or corroding in alkaline solution all can be as covering material.
Therefore, when alkaline solution is contacted with described clad 630, described clad 630 dissolves or corrodes, and makes resistance value change, and conductor wire the 610th, the resistance value between 620 also changes therewith.
Its operation principle is described above.
When conductor wire the 211st, 212 formed by activated carbon or carbon black or CNT (CNT) or Graphene (Graphene) when, mode of printing can be used, also can by prepare to be formed on basal film layer 210 conductor wire the 211st, 212 position sticking two-faced adhesive tape or coating adhesive formed after adhesive agent 211-1,212-1, dusting shape activated carbon or carbon black or CNT (CNT) or Graphene (Graphene) and formed, as shown in Figure 10.
That is, by conductive powder is sprinkling upon adhesive agent 211-1,212-1 upper formation conductor wire the 211st, 212.
Therefore, only could adhere to electric conductivity activated carbon or carbon black or CNT (CNT) or Graphene (Graphene) in the place being formed with adhesive agent 211-1,212-1 and form conductor wire.
Additionally, utilize spraying (suttering) method also can form conductor wire the 211st, 212.Described spraying method is to arrange to have the metal of electric conductivity and basal film layer 210 of the present invention in vacuum chamber, now, described basal film layer 210 will overlap in addition to the position of conductor wire to be formed upper protective film 213, as shown in figure 11.
Described diaphragm 213 can be made up of synthetic resin adhesive tape.
Adding negative voltage on conducting metal, after adding positive voltage, injecting argon gas in vacuum chamber on basal film layer 210, the ion deposition at this moment spilling because ionization argon gas clashes with conducting metal is at basal film layer 210.
Depositing operation removes diaphragm 213 and just forms conductor wire the 211st, 212 after terminating.
Why use above-mentioned spraying method, be because when conductor wire the 211st, 212 formed by conductive materials such as electrically conductive ink, silver compound, sheet metal or sheet metals when, its thickness is 5～10, there is bigger resistance value, if being coated coat 240 at an upper portion thereof, then conductor wire the 211st, 212 and the thickness of coat 240 will reach 30～50, additionally, being affected by conductor wire the 211st, 212 thickness, coat 240 is difficult to be stably adhered on basal film layer 210.
But, if use spraying method, conductor wire the 211st, 212 thickness be only 0.1～1, thickness diminishes, thus coat 240 can be made to be stably adhered on basal film layer 240.
Additionally, conductor wire the 211st, 212 not necessarily two, one can be only formed by activated carbon or carbon black or CNT the above of basal film layer 210
Or the conductor wire that constitutes of Graphene (Graphene), and the two ends of one conductor wire can be connected to controller by conductive cable (CNT).
Claims (17)
1. alkaline solution leakage sensing device, it is characterised in that: conductor wire and the material being made resistance value change by reacting on alkaline solution that it by the basal film layer of film material, forms along its length at the upper surface of described basal film layer form and are coated on the coat making described conductor wire not expose above basal film layer and constitute.
2. alkaline solution according to claim 1 leakage sensing device; it is characterized in that: the above lamination of described coat is provided with the upper protective film layer being made up of film material, described upper protective film layer is formed in a certain distance apart from one another and for making the conductor wire on basal film layer upwards expose sensing bore.
3. alkaline solution according to claim 1 leakage sensing device, it is characterised in that: described coat is mixed by 70～99 weight percentage of silicon Series of Polyurethane resins and 1～30 percentage by weight polystyrene resin phase.
4. alkaline solution according to claim 1 leakage sensing device, it is characterised in that: the mixture that described coat is dissolved or corroded by 50～98 percentage by weights the resin material in alkaline solution, 1～50 percentage by weight volatile solvent and 1～10 percentage by weight curing agent is formed.
5. alkaline solution according to claim 4 leakage sensing device, it is characterised in that: described resin material is alkyd resin, Merlon (PC), polymethyl methacrylate (PMMA), polyarylate (PAR), PEI (PEI), polyimides (PI), phenolic resin (PF), polyamidoimide (PAI), polybutylene terephthalate (PBT) (PBT), polyacetal copolymer, any one in polymer composite.
6. alkaline solution according to claim 4 leakage sensing device, it is characterised in that: described volatile solvent is solvent series solvent.
7. alkaline solution according to claim 4 leakage sensing device, it is characterised in that: described curing agent is isocyanates or melamine.
8. an alkaline solution leakage sensing device, it is characterized in that: the conductor wire that by the basal film layer of film material, formed along its length at the upper surface of described basal film layer and for covering described conductor wire and being dissolvable in water the coat of alkaline solution and constitute alkaline solution sensor, being connected with controller on described alkaline solution sensor, described controller is for generating alarm according to the resistance value changing in time while described conductor wire supplies remote sensing power supply.
9. an alkaline solution leakage sensing device, it is characterized in that: by the basal film layer of film material, constituted alkaline solution sensor at the conductor wire that the upper surface of described basal film layer is formed along its length and the material that makes resistance value change to react on alkaline solution is formed, being connected with controller on described alkaline solution sensor, described controller is for generating alarm according to the resistance value changing in time while described conductor wire supplies remote sensing power supply.
10. an alkaline solution leakage sensing device, it is characterized in that: two conductor wires being put by being separated by side by side and be coated on the clad outside described conductor wire with the material being dissolved in alkaline solution and constituted alkaline solution sensor, being connected with controller on described alkaline solution sensor, described controller is for generating alarm according to the resistance value changing in time while described conductor wire supplies remote sensing power supply.
Alkaline solution leakage sensing device described in 11. according to Claim 8 or 9 or 10, it is characterized in that: in described controller, be set with the reference resistor value of described alkaline solution sensor, described reference resistor value "+" direction and "-" direction setting have upper limit resistance value and the lower resistance value of alarm set value.
The 12. alkaline solution leakage sensing devices according to claim 1 or 8, it is characterised in that: described conductor wire is by the upper surface formation adhesive agent at basal film layer, and sprays conductive powder on described adhesive agent and formed.
13. 1 kinds of alkaline solution leakage sensing devices, it is characterized in that: it includes the basal film layer of film material, at the above conductor wire being formed along its length of described basal film layer, described basal film layer is formed by synthetic resin material, and described conductor wire is mixed by conductive carbon 50～99 percentage by weight and synthetic resin adhesive 1～50 percentage by weight and formed with mode of printing printing.
14. alkaline solutions according to claim 13 leakage sensing devices, it is characterised in that: described conductive carbon dispersion liquid is activated carbon or carbon black or CNT (CNT) or Graphene (graphene) or carbon black powder.
15. alkaline solutions according to claim 14 leakage sensing devices, it is characterised in that: described adhesive is alkyd resin, Merlon (PC), polymethyl methacrylate (PMMA), polyarylate (PAR), PEI (PEI), polyimides (PI), phenolic resin (PF), polyamidoimide (PAI), polybutylene terephthalate (PBT) (PBT), polyacetal copolymer, any one in polymer composite.
16. alkaline solution according to claim 13 leakage sensing devices, it is characterized in that: described conductor wire is formed side by side by the first conductor wire and the second conductor wire, described first conductor wire and the second conductor wire are mixed with adhesive by activated carbon or carbon black or CNT (CNT) or Graphene (graphene)；Or when described first conductor wire is made up of silver compound or sheet metal or other electric conductors, described second conductor wire is then mixed with adhesive by activated carbon or carbon black or CNT (CNT) or Graphene (graphene).
The 17. alkaline solution leakage sensing devices according to claim 1 or 8, it is characterised in that: utilize spraying (sputtering) technique to form described conductor wire.
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| CN109141766A (en) * | 2018-06-04 | 2019-01-04 | 北京爱尔斯姆科技有限公司 | A kind of surface mount type quartz crystal resonator gas leakage detection liquid |
| CN109764247A (en) * | 2019-03-28 | 2019-05-17 | 合肥鑫晟光电科技有限公司 | A kind of liquid leak detection device |
| CN110243550A (en) * | 2019-06-11 | 2019-09-17 | 中国地质大学（武汉） | A kind of cavity infiltration monitoring device |
| CN114127548A (en) * | 2019-07-12 | 2022-03-01 | 株式会社恩西提 | Harmful chemical substance detection device |
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| CN109141766A (en) * | 2018-06-04 | 2019-01-04 | 北京爱尔斯姆科技有限公司 | A kind of surface mount type quartz crystal resonator gas leakage detection liquid |
| CN109764247A (en) * | 2019-03-28 | 2019-05-17 | 合肥鑫晟光电科技有限公司 | A kind of liquid leak detection device |
| CN110243550A (en) * | 2019-06-11 | 2019-09-17 | 中国地质大学（武汉） | A kind of cavity infiltration monitoring device |
| CN114127548A (en) * | 2019-07-12 | 2022-03-01 | 株式会社恩西提 | Harmful chemical substance detection device |
| CN114127548B (en) * | 2019-07-12 | 2023-12-26 | 株式会社恩西提 | Detection device for harmful chemical substances |
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Application publication date: 20161005 |