CN110987087B - Detection equipment for water quantity and temperature of drainage pipeline - Google Patents
Detection equipment for water quantity and temperature of drainage pipeline Download PDFInfo
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- CN110987087B CN110987087B CN201911358252.0A CN201911358252A CN110987087B CN 110987087 B CN110987087 B CN 110987087B CN 201911358252 A CN201911358252 A CN 201911358252A CN 110987087 B CN110987087 B CN 110987087B
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01D—MEASURING NOT SPECIALLY ADAPTED FOR A SPECIFIC VARIABLE; ARRANGEMENTS FOR MEASURING TWO OR MORE VARIABLES NOT COVERED IN A SINGLE OTHER SUBCLASS; TARIFF METERING APPARATUS; MEASURING OR TESTING NOT OTHERWISE PROVIDED FOR
- G01D21/00—Measuring or testing not otherwise provided for
- G01D21/02—Measuring two or more variables by means not covered by a single other subclass
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
- F17D—PIPE-LINE SYSTEMS; PIPE-LINES
- F17D5/00—Protection or supervision of installations
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Abstract
The invention discloses a detection device for water quantity and temperature of a drainage pipeline, which comprises a drainage pipe, wherein a fixed block is fixedly connected inside the drainage pipe, a limiting spring is fixedly connected on the right side of the fixed block, a toothed plate is fixedly connected on the right side of the limiting spring, a bearing wheel is meshed and connected with the top of the toothed plate, a connecting rod is rotatably connected on the surface of the bearing wheel, a flow rod is fixedly connected on the top of a temperature measuring cylinder, a floating block is slidably connected on the surface of the flow rod, a water level rod is fixedly connected on the top of the floating block, an upper hollow rod is fixedly connected on the top of the bearing block, a thermometer is fixedly connected on the top of the upper hollow rod, and a switch wheel is slidably connected on the left side of an inclined block. This a check out test set for drainage pipe water yield and temperature uses through the cooperation that holds the takeover wheel and hold the piece to reached and detected the effect that can not reduce precision and easy operation for a long time in adverse circumstances.
Description
Technical Field
The invention relates to the technical field of pipeline detection, in particular to a device for detecting water quantity and temperature of a drainage pipeline.
Background
The drainage pipeline refers to a system consisting of a pipeline collecting and discharging sewage, wastewater and rainwater and accessory facilities thereof, and comprises a main pipe, branch pipes and pipelines leading to a treatment plant, wherein the pipelines are built on a street or any other place, and the pipelines are used as drainage pipelines for statistics as long as the pipelines play a drainage role, in addition, most of the drainage pipelines are installed below the ground surface, but drainage pipelines installed in some sewage treatment plants are installed above the ground surface for the convenience of maintenance, and the drainage pipelines far away from a factory building are buried below the ground surface.
Drainage pipe need detect displacement and temperature at the in-process that uses, especially need often detect displacement and temperature in sewage treatment plant, whether block up in order to judge drainage pipe because detect the displacement, detect the temperature and be in order to prevent in the exhaust sewage material and drainage pipe inner wall to reach reaction condition, corrode the pipeline inner wall, current check out test set is through the detection instrument to temperature and water yield detection, but drainage pipe is mostly in very abominable environment, and it is a long-term process to detect, the detection instrument can descend through long-time use precision, in addition, the operation of detection instrument is complicated, need the professional just can use.
Disclosure of Invention
Technical problem to be solved
Aiming at the defects of the prior art, the invention provides the detection equipment for the water quantity and the temperature of the drainage pipeline, which has the advantages of capability of detecting in a severe environment for a long time without reducing the precision, simplicity in operation and the like, and solves the problems of reduced precision and simplicity in operation of the conventional detection instrument in the severe environment for the long time.
(II) technical scheme
In order to achieve the purposes that the precision can not be reduced and the operation is simple when the detection is carried out for a long time in a severe environment, the invention provides the following technical scheme: a detection device for the water quantity and temperature of a drainage pipeline comprises a drainage pipe, wherein a fixed block is fixedly connected inside the drainage pipe, a limiting spring is fixedly connected on the right side of the fixed block, a toothed plate is fixedly connected on the right side of the limiting spring, a bearing wheel is meshed and connected with the top of the toothed plate, a connecting rod is rotatably connected on the surface of the bearing wheel, a water absorption cylinder is arranged at the top of the connecting rod, a toothed rod is rotatably connected on the right side of the connecting rod, a bearing block is connected on the right side of the toothed rod in a meshed manner, a lower hollow rod is arranged at the bottom of the bearing block, a supporting block is fixedly connected on the inner bottom wall of the bearing block, a hollow spring is fixedly connected at the top of the supporting block, a temperature measuring rod is fixedly connected at the top of the hollow spring through a water stop plate, a water inlet pipe is fixedly connected inside the lower hollow rod, and a water outlet pipe is fixedly connected inside the lower hollow rod and positioned on the left side of the water inlet pipe, the bottom of lower hollow rod has the temperature measurement cylinder through gas blanket sliding connection, the top fixedly connected with flow rod of temperature measurement cylinder, the surperficial sliding connection of flow rod has the kicking block, the top fixedly connected with water level pole of kicking block, the top fixedly connected with of bearing block goes up hollow rod, the top fixedly connected with thermometer of going up hollow rod, the left side fixedly connected with sloping block of going up hollow rod, the left side sliding connection of sloping block has the switch wheel.
Preferably, the top of the connecting rod is rotatably connected with a top rod.
Preferably, the top of the rack bar is provided with a limiting bar, so that the rack bar rotates anticlockwise by taking a contact point of the limiting bar and the rack bar as a circle center.
Preferably, the top of the water inlet pipe is positioned above the hollow spring, and the force is exerted in the upper part of the hollow spring, so that the water can cover the whole hollow spring conveniently, and the temperature of the water can be rapidly transferred to the hollow spring.
Preferably, a limiting valve is arranged on the left side of the water suction cylinder to prevent water from flowing into the water suction cylinder when detection is not needed.
Preferably, the top of the temperature measuring cylinder is provided with a one-way water inlet valve and a one-way water outlet valve.
Preferably, the lower hollow rod is positioned inside the temperature measuring cylinder and is provided with a water inlet hole and a water outlet hole.
Preferably, the hollow spring is filled with mercury.
(III) advantageous effects
Compared with the prior art, the invention provides a device for detecting the water quantity and the temperature of a drainage pipeline, which has the following beneficial effects:
1. this a check out test set for drainage pipe water yield and temperature uses through the cooperation of holding the wheel and holding the piece, combines temperature measurement cylinder and hollow spring's supplementary use, when needs detect, opens the motor, makes the switch wheel rotate.
Before the switching wheel does not rotate, water flow in the drainage pipe flows through the bearing wheel, so that the bearing wheel rotates clockwise and pushes a toothed plate meshed with the bearing wheel below, the bearing wheel cannot do circular motion under the limitation of a limiting spring, the bearing wheel is static when the elastic force of the limiting spring is equal to the water flow thrust, in the process of clockwise rotation of the bearing wheel, a connecting rod rotationally connected with the bearing wheel moves downwards, a toothed rod rotationally connected with the connecting rod rotates anticlockwise under the limitation of a top limiting rod by taking a contact point of the limiting rod and the bearing rod as a circle center, so that a bearing block meshed with the bearing wheel moves upwards, when the bearing block moves upwards, a lower hollow rod at the bottom is pulled, the lower hollow rod pulls an air sealing plate in a temperature measuring cylinder at the bottom to compress an area above the air sealing plate, namely, an area space above the air sealing plate and formed by a temperature measuring cylinder is compressed, and the water flow in the space is filled in a one-way in the right area of the lower hollow rod through the top of the temperature measuring cylinder, at the moment, the water is compressed in the area, the water enters the water inlet pipe through the water inlet hole formed in the lower hollow rod, then overflows from the top of the water inlet pipe, covers the hollow spring, and then flows out of the area on the left side of the lower hollow rod from the water outlet pipe below through the water outlet hole formed in the left side of the lower hollow rod.
When the bearing block moves upwards, the upper hollow rod can be jacked to move upwards, the upward height of the upper hollow rod can be checked by comparing the flow rod on the right side, and then the numerical value of the current flow velocity can be calculated by combining an empirical formula of the upward moving weight and the flow conversion moment, and the floating block can also change along with the change of the water level on the flow rod, so that the height of the water level in the drainage pipe can be obtained, and the total water quantity in one section of the drainage pipe can be calculated according to the length of the drainage pipe.
At this moment, along with the starting of the motor, the inclined block is pressed downwards by the pressure rod on the switch wheel to move to the initial position and then leaves, so that the upper hollow rod presses the bearing block, the gear lever rotates reversely to return to the initial position, the bearing wheel and the connecting rod can also return to the initial position under the pushing of the limiting spring, and then the process can be continuously repeated by the bearing wheel due to the fact that the switch wheel presses the inclined block intermittently.
When the supporting wheel rotates repeatedly, the lower hollow rod can move up and down repeatedly, water is sucked into the supporting block continuously to cover the hollow spring, then the water is discharged through the water outlet pipe and the one-way water outlet valve arranged at the top of the temperature measuring cylinder, circulation is achieved, the hollow spring is filled with mercury, the hollow spring can expand rapidly after being heated and can contract rapidly after being cooled, the air spring can stretch and contract correspondingly, the temperature measuring rod is further moved up and down, and therefore the moving height of the temperature measuring rod is compared with the thermometer, and the numerical value of the temperature in the drainage pipe can be obtained.
The power equipment of above equipment only has the motor, only needs to open the motor when needing to detect, and the operation is very simple, does not need the professional, and the transmission of equipment mechanism is very simple simultaneously, does not have electronic instrument, can not damage easily, therefore can not reduce the accuracy to reached and detected the effect that can not reduce precision and easy operation for a long time in adverse circumstances.
2. This a check out test set for drainage pipe water yield and temperature, cooperation through the jar that absorbs water and connecting rod is used, at the in-process of accepting round circulation is reciprocal, reciprocating motion about the connecting block, go the region through ejector pin and the inside gas block that seals of jar that absorbs water to the top and breathe in and exhaust, the restriction valve that sets up through the jar left side of absorbing water with the water in the drainage pipe when breathing in absorbs, the one-way outlet valve that rethread jar top set up discharges, be collected by the staff, be used for water quality testing, thereby reached and run to the effect that the drainage pipe exit collected water at the time of need not wasting time.
Drawings
FIG. 1 is a schematic structural view of the present invention;
FIG. 2 is an enlarged view of the connecting position of the toothed plate and the adapting wheel in the structure of the invention;
FIG. 3 is an enlarged view of the top mechanism of the drain pipe of the present invention;
FIG. 4 is an enlarged view of the internal mechanism of the structural receiving block of the present invention;
FIG. 5 is an enlarged view of the connecting portion of the connecting rod and the rack bar according to the present invention.
In the figure: 1. the water outlet pipe comprises a water outlet pipe, 2, a toothed plate, 3, a limiting spring, 4, a bearing wheel, 5, a connecting rod, 6, a toothed bar, 7, a water absorption cylinder, 8, a bearing block, 9, a lower hollow bar, 10, a water inlet pipe, 11, a supporting block, 12, a hollow spring, 13, a water outlet pipe, 14, a temperature measuring cylinder, 15, a temperature measuring rod, 16, a flow rod, 17, a thermometer, 18, an inclined block, 19, a switch wheel, 20, a floating block, 21, an upper hollow bar, 22, a water level bar, 23 and a fixed block.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Referring to fig. 1-5, a detection device for water quantity and temperature of a drainage pipeline comprises a drainage pipe 1, a fixed block 23 is fixedly connected inside the drainage pipe 1, a limiting spring 3 is fixedly connected to the right side of the fixed block 23, a toothed plate 2 is fixedly connected to the right side of the limiting spring 3, the toothed plate 2 is made of stainless steel, so that the device can be effectively prevented from being corroded, the service life of the device is greatly prolonged, the production cost is reduced, and an enterprise is indispensible, a bearing wheel 4 is engaged and connected to the top of the toothed plate 2, a connecting rod 5 is rotatably connected to the surface of the bearing wheel 4, a top rod is rotatably connected to the top of the connecting rod 5, a water suction cylinder 7 is arranged at the top of the connecting rod 5, a limiting valve is arranged at the left side of the water suction cylinder 7, water is prevented from flowing into the water suction cylinder 7 when detection is not needed, a toothed rod 6 is rotatably connected to the right side of the connecting rod 5, the top of the toothed bar 6 is provided with a limiting rod, so that the toothed bar 6 rotates anticlockwise by taking a contact point of the limiting rod and the toothed bar as a circle center, the right side of the toothed bar 6 is meshed and connected with a bearing block 8, the bearing block 8 is made of stainless steel, the corrosion of equipment can be effectively prevented, the service life of the equipment is greatly prolonged, the production cost is reduced, and the bearing block has an indispensable effect on enterprises, the bottom of the bearing block 8 is provided with a lower hollow bar 9, the lower hollow bar 9 is positioned inside a temperature measuring cylinder 14 and is provided with a water inlet hole and a water outlet hole, the inner bottom wall of the bearing block 8 is fixedly connected with a supporting block 11, the top of the supporting block 11 is fixedly connected with a hollow spring 12, the inside of the hollow spring 12 is filled with mercury, the top of the hollow spring 12 is fixedly connected with a temperature measuring rod 15 through a water stop, the inside of the lower hollow bar 9 is fixedly connected with a water inlet pipe 10, and the top of the water inlet pipe 10 is positioned above the hollow spring 12, the water-temperature-measuring hollow spring is convenient for covering the whole hollow spring 12 by water, so that the temperature of the water is rapidly transmitted to the hollow spring 12, the lower hollow rod 9 is internally and fixedly connected with a water outlet pipe 13 positioned on the left side of a water inlet pipe 10, the bottom of the lower hollow rod 9 is connected with a temperature-measuring cylinder 14 in a sliding manner through an air sealing plate, the top of the temperature-measuring cylinder 14 is provided with a one-way water inlet valve and a one-way water outlet valve, the top of the temperature-measuring cylinder 14 is fixedly connected with a flow rod 16, the surface of the flow rod 16 is connected with a floating block 20 in a sliding manner, the top of the floating block 20 is fixedly connected with a water level rod 22, the top of the bearing block 8 is fixedly connected with an upper hollow rod 21, the top of the upper hollow rod 21 is fixedly connected with a thermometer 17, the left side of the upper hollow rod 21 is fixedly connected with an inclined block 18, and the left side of the inclined block 18 is connected with a switch wheel 19 in a sliding manner.
In use, the motor is switched on to rotate the switch wheel 19.
Before the motor does not start the switch wheel 19 and does not rotate, the water flow in the drain pipe 1 flows through the bearing wheel 4, so that the bearing wheel 4 rotates clockwise, the toothed plate 2 meshed with the lower part of the bearing wheel is pushed, under the limitation of the limiting spring 3, the distance of pushing the toothed plate 2 by the bearing wheel 4 is not enough to complete circular motion, namely, the distance is smaller than the rotating diameter of the connecting rod 5 on the bearing wheel 4, the toothed plate is static when the elastic force of the limiting spring 3 is equal to the water flow thrust, in the clockwise rotation process of the bearing wheel 4, the connecting rod 5 rotationally connected with the bearing wheel moves downwards, the toothed rod 6 rotationally connected with the connecting rod 5 rotates anticlockwise under the limitation of the top limiting rod by taking the contact point of the limiting rod and the connecting rod as the circle center, the bearing block 8 meshed with the bearing block moves upwards, when the bearing block 8 moves upwards, the lower hollow rod 9 at the bottom is pulled, the lower hollow rod 9 pulls the air sealing plate in the temperature measuring cylinder 14 at the bottom to compress the area above the air sealing plate, both air-lock top compresses with the regional space that temperature measurement cylinder 14 constitutes, and the one-way water intaking valve that the rivers set up through temperature measurement cylinder 14 top will fill up down the region on hollow rod 9 right side in this space, compress this region this moment, water will enter into inlet tube 10 through the inlet opening that hollow rod 9 was seted up down in, the material of inlet tube 10 is the stainless steel, can effectively prevent that equipment from being corroded, very big extension the life of equipment, manufacturing cost has been reduced, there is indispensable effect to the enterprise, then spill over from inlet tube 10 top, cover hollow spring 12, the outlet pipe 13 of following again flows out the left region of hollow rod 9 down through the apopore that hollow rod 9 left side was seted up down.
When the bearing block 8 moves upwards, the upper hollow rod 21 is jacked to move upwards, the upward height of the upper hollow rod 21 can be checked by comparing the right flow rod 16, and the numerical value of the current flow speed can be calculated by combining an empirical formula of the upward moving weight and the flow conversion moment, and the floating block 20 can also change along with the change of the water level on the flow rod 16, so that the height of the water level in the drain pipe 1 can be obtained, and the total water quantity in one section of the drain pipe 1 can be calculated according to the length of the drain pipe 1.
At this time, along with the starting of the motor, the inclined block 18 is pressed downwards by the pressure rod on the switch wheel 19 to an initial position and then leaves, so that the upper hollow rod 21 presses the bearing block 8, the rack rod 6 rotates reversely to the initial position, the bearing wheel 4 and the connecting rod 5 can also return to the initial position under the pushing of the limiting spring 3, and then the bearing wheel 4 can continuously repeat the process because the switch wheel 19 presses the inclined block 18 intermittently.
When the receiving wheel 4 rotates repeatedly, the lower hollow rod 9 can move up and down repeatedly, water is sucked into the receiving block 8 continuously to cover the hollow spring 12, then the water is discharged through the water outlet pipe 13 and the one-way water outlet valve arranged at the top of the temperature measuring cylinder 14 to achieve circulation, the hollow spring 12 is filled with mercury, the hollow spring can expand rapidly after being heated and contract rapidly after being cooled, the air spring can stretch and contract correspondingly, the temperature measuring rod 15 moves up and down, and therefore the moving height of the temperature measuring rod 15 is compared with the thermometer 17, and the value of the temperature in the drain pipe 1 can be obtained.
The power equipment of the equipment only has the motor, only the motor needs to be started when detection is needed, the operation is very simple, no professional is needed, meanwhile, the transmission of the equipment mechanism is very simple, no electronic instrument exists, the equipment mechanism cannot be easily damaged, and therefore the accuracy cannot be reduced.
In the process of the cyclic reciprocation of the bearing wheel 4, the connecting block moves up and down in a reciprocating manner, the upper part is subjected to air suction and exhaust through the ejector rod and the air sealing block inside the water suction cylinder 7, water in the water discharge pipe 1 is absorbed through the limiting valve arranged on the left side of the water suction cylinder 7 when the water is sucked, and the water is discharged through the one-way water outlet valve arranged on the top of the water suction cylinder 7 and collected by a worker for water quality detection.
Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
Claims (8)
1. The utility model provides a check out test set for drainage pipe water yield and temperature, includes drain pipe (1), its characterized in that: the water draining pipe is characterized in that a fixed block (23) is fixedly connected to the inside of the water draining pipe (1), a limiting spring (3) is fixedly connected to the right side of the fixed block (23), a toothed plate (2) is fixedly connected to the right side of the limiting spring (3), a bearing wheel (4) is meshed and connected to the top of the toothed plate (2), a connecting rod (5) is rotatably connected to the surface of the bearing wheel (4), a water absorbing cylinder (7) is arranged at the top of the connecting rod (5), a toothed rod (6) is rotatably connected to the right side of the connecting rod (5), a bearing block (8) is meshed and connected to the right side of the toothed rod (6), a lower hollow rod (9) is arranged at the bottom of the bearing block (8), a supporting block (11) is fixedly connected to the inner bottom wall of the bearing block (8), a hollow spring (12) is fixedly connected to the top of the supporting block (11), and a temperature measuring rod (15) is fixedly connected to the top of the hollow spring (12), the water temperature measuring device is characterized in that a water inlet pipe (10) is fixedly connected to the inside of the lower hollow rod (9), a water outlet pipe (13) is fixedly connected to the left side of the water inlet pipe (10) and is located inside the lower hollow rod (9), the bottom of the lower hollow rod (9) is connected with a temperature measuring cylinder (14) in a sliding mode through an air sealing plate, the top of the temperature measuring cylinder (14) is fixedly connected with a flow rod (16), the surface of the flow rod (16) is connected with a floating block (20) in a sliding mode, the top of the floating block (20) is fixedly connected with a water level rod (22), the top of the bearing block (8) is fixedly connected with an upper hollow rod (21), the top of the upper hollow rod (21) is fixedly connected with a thermometer (17), the left side of the upper hollow rod (21) is fixedly connected with an inclined block (18), and the left side of the inclined block (18) is connected with a switch wheel (19) in a sliding mode;
during the use, sloping block (18) are left after being pushed down to initial position by the depression bar on switch wheel (19), lead to last hollow rod (21) to push down and hold piece (8), and then ratch (6) reverse rotation returns initial position, hold under the promotion of restriction spring (3) and take over wheel (4) and connecting rod (5) and also can return initial position, later because switch wheel (19) are intermittent to pushing down of sloping block (18), consequently hold and take over wheel (4) and can constantly repeat above-mentioned process.
2. The apparatus as claimed in claim 1, wherein the water volume and temperature of the drain pipe is detected by the following steps: the top of the connecting rod (5) is rotatably connected with a mandril.
3. The apparatus as claimed in claim 1, wherein the water volume and temperature of the drain pipe is detected by the following steps: and a limiting rod is arranged at the top of the toothed rod (6).
4. The apparatus as claimed in claim 1, wherein the water volume and temperature of the drain pipe is detected by the following steps: the top of the water inlet pipe (10) is positioned in the inner ring above the hollow spring (12).
5. The apparatus as claimed in claim 1, wherein the water volume and temperature of the drain pipe is detected by the following steps: and a limiting valve is arranged on the left side of the water suction cylinder (7).
6. The apparatus as claimed in claim 1, wherein the water volume and temperature of the drain pipe is detected by the following steps: the top of the temperature measuring cylinder (14) is provided with a one-way water inlet valve and a one-way water outlet valve.
7. The apparatus as claimed in claim 1, wherein the water volume and temperature of the drain pipe is detected by the following steps: the lower hollow rod (9) is positioned inside the temperature measuring cylinder (14) and is provided with a water inlet hole and a water outlet hole.
8. The apparatus as claimed in claim 1, wherein the water volume and temperature of the drain pipe is detected by the following steps: the hollow spring (12) is filled with mercury.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201911358252.0A CN110987087B (en) | 2019-12-25 | 2019-12-25 | Detection equipment for water quantity and temperature of drainage pipeline |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201911358252.0A CN110987087B (en) | 2019-12-25 | 2019-12-25 | Detection equipment for water quantity and temperature of drainage pipeline |
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| CN110987087B true CN110987087B (en) | 2021-11-19 |
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| JPS5118868B2 (en) * | 1973-05-21 | 1976-06-12 | ||
| US4141249A (en) * | 1977-03-14 | 1979-02-27 | Nippon Kokan Kabushiki Kaisha | Sub-lance assembly for sampling and temperature-measuring of molten metal during refining |
| US20100146692A1 (en) * | 2008-12-11 | 2010-06-17 | Arnold Ramirez | Leak prevention fill valve control system for toilet tank |
| CN104111090B (en) * | 2013-04-22 | 2016-06-15 | 清华大学 | A kind of drainage pipeline networks multi objective on-Line Monitor Device |
| CN104236626B (en) * | 2014-09-04 | 2016-05-25 | 北京清控人居环境研究院有限公司 | The integrated on-line monitoring system of drainage pipeline liquid level and flow |
| CN206818249U (en) * | 2017-06-07 | 2017-12-29 | 李坤煌 | The monitoring system of subsoil drain |
| CN207019722U (en) * | 2017-08-08 | 2018-02-16 | 浙江瑞启检测技术有限公司 | One kind is on environmental pollution by water sampling detecting device |
| CN208722033U (en) * | 2018-10-25 | 2019-04-09 | 阳光学院 | A kind of city supply and discharge pipe network intelligent monitor system based on narrowband Internet of Things |
| CN209841079U (en) * | 2019-04-18 | 2019-12-24 | 上海原本生物科技有限公司 | High-precision water temperature and water pressure detection equipment for sewage pipeline |
| CN110398268A (en) * | 2019-07-29 | 2019-11-01 | 杭州铭铄机电科技有限公司 | A kind of water flow of pipeline temperature detection self-regulation equipment based on gas law |
| CN110426499B (en) * | 2019-09-05 | 2023-12-22 | 山东省水利科学研究院 | Water quality detection device and detection method for water resource protection |
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