CN218411362U - Laser type water level gauge - Google Patents
Laser type water level gauge Download PDFInfo
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- CN218411362U CN218411362U CN202222729667.8U CN202222729667U CN218411362U CN 218411362 U CN218411362 U CN 218411362U CN 202222729667 U CN202222729667 U CN 202222729667U CN 218411362 U CN218411362 U CN 218411362U
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- laser
- water level
- laser emission
- emission channel
- level gauge
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- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title claims abstract description 107
- 238000006073 displacement reaction Methods 0.000 claims abstract description 35
- 230000008093 supporting effect Effects 0.000 claims description 13
- 230000000903 blocking effect Effects 0.000 claims description 6
- 230000003014 reinforcing effect Effects 0.000 claims description 4
- 238000000034 method Methods 0.000 abstract description 9
- 230000000694 effects Effects 0.000 abstract description 2
- 238000011144 upstream manufacturing Methods 0.000 description 8
- 238000009434 installation Methods 0.000 description 7
- 239000006260 foam Substances 0.000 description 6
- 238000006243 chemical reaction Methods 0.000 description 4
- 239000012535 impurity Substances 0.000 description 4
- 230000004936 stimulating effect Effects 0.000 description 4
- 230000001976 improved effect Effects 0.000 description 3
- 230000005540 biological transmission Effects 0.000 description 2
- 238000005259 measurement Methods 0.000 description 2
- 230000001737 promoting effect Effects 0.000 description 2
- 229910001335 Galvanized steel Inorganic materials 0.000 description 1
- 229910000831 Steel Inorganic materials 0.000 description 1
- 230000001174 ascending effect Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000001914 filtration Methods 0.000 description 1
- 239000008397 galvanized steel Substances 0.000 description 1
- 230000002262 irrigation Effects 0.000 description 1
- 238000003973 irrigation Methods 0.000 description 1
- 230000000149 penetrating effect Effects 0.000 description 1
- 239000004033 plastic Substances 0.000 description 1
- 239000002985 plastic film Substances 0.000 description 1
- 229920006255 plastic film Polymers 0.000 description 1
- 230000002265 prevention Effects 0.000 description 1
- 238000005096 rolling process Methods 0.000 description 1
- 239000007921 spray Substances 0.000 description 1
- 239000010935 stainless steel Substances 0.000 description 1
- 229910001220 stainless steel Inorganic materials 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
- 238000005728 strengthening Methods 0.000 description 1
- 239000002023 wood Substances 0.000 description 1
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A10/00—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE at coastal zones; at river basins
- Y02A10/30—Flood prevention; Flood or storm water management, e.g. using flood barriers
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- Measurement Of Levels Of Liquids Or Fluent Solid Materials (AREA)
Abstract
The utility model relates to a laser type water level gauge is used in the field of water level gauge, and it includes laser displacement sensor and locates the laser emission passageway of laser displacement sensor below, laser displacement sensor with the laser emission passageway is all installed on the wall of lock chamber, be equipped with laser reflection body in the laser emission passageway. The method and the device have the effect of improving the accuracy of the measured water level data.
Description
Technical Field
The application relates to the field of water level meters, in particular to a laser type water level meter.
Background
The water level meter is an instrument capable of automatically measuring and recording the water levels of water bodies such as rivers, lakes, irrigation canals and the like. The water level meter commonly used in the market is an ultrasonic water level meter, the ultrasonic water level meter emits fan-shaped high-frequency ultrasonic waves, and the distance between a measured point and an emitting point is calculated according to the returning time of the ultrasonic waves, so that water level data are obtained.
In the field of waterway transportation, ship locks are used more frequently. Usually, in order to construct hydraulic engineering, a dam is constructed in a river channel to raise the upstream water level, so that river water is blocked by the dam, the difference between the upstream water level and the downstream water level is large, and a ship cannot pass through the dam, so that a ship lock is constructed and mainly comprises a lock chamber, a gate, an upstream lock head and a downstream lock head. When the ship descends, the lock chamber is filled with water, when the water level in the lock chamber is equal to that of the upstream, the upstream gate is opened, the ship enters the lock chamber, the upstream gate is closed immediately, the lock chamber is drained, when the water level in the lock chamber is equal to that of the downstream, the downstream gate is opened, and the ship can be released. The process is reversed when ascending. In the process, the upstream water level, the chamber water level and the downstream water level are measured by an ultrasonic water level meter to judge whether the chamber water level is equal to the upstream water level or the downstream water level.
Take the example of installing an ultrasonic water level gauge in a lock chamber. Referring to fig. 1, in the related art, an ultrasonic water level gauge 1 is installed on a wall of a chamber 2, and specifically, a U-shaped hoop a3 is hooped on the ultrasonic water level gauge 1, and both ends of the U-shaped hoop a3 are fixed to the wall of the chamber 2 by expansion bolts a4, thereby implementing the installation of the ultrasonic water level gauge 1 on the wall of the chamber 2. In addition, the ultrasonic water level meter 1 can be installed at a position 0.5 to 1m higher than the maximum water level according to the measuring range of the ultrasonic water level meter 1 and the maximum water level condition in the gate chamber 2.
However, the water surface usually accumulates foam, and therefore, the ultrasonic wave emitted by the ultrasonic water level meter is affected by the foam on the water surface and cannot directly contact with the water surface, so that the water level data measured by the ultrasonic water level meter is inaccurate.
SUMMERY OF THE UTILITY MODEL
In order to improve the above-mentioned defects, the present application provides a laser type water level gauge.
The application provides a laser type water level gauge adopts following technical scheme:
a laser type water level gauge comprises a laser displacement sensor and a laser emission channel arranged below the laser displacement sensor, wherein the laser displacement sensor and the laser emission channel are both arranged on the wall of a lock chamber, and a laser reflection floating body is arranged in the laser emission channel.
By adopting the technical scheme, the laser emission channel is arranged below the laser displacement sensor, so that the laser emission channel is ensured to extend into the position below the water surface and extend out of the position above the water surface for a certain distance, and the laser emission channel is prevented from flowing backwards in river water; the laser reflection floating body is arranged in the laser emission channel and can float up and down along with the fluctuation of the water level, the laser pulse emitted by the laser displacement sensor is reflected by the laser reflection floating body and then returns to the laser displacement sensor, and the data of the thickness of the laser reflection floating body is added through conversion according to the time from the emission of the laser pulse to the return of the laser pulse to the reception of the laser pulse, so that the accurate water level data is obtained. In the process of determining water level data in the lock chamber by the laser type water level meter, the laser emission channel can limit the position of the laser reflection floating body, so that laser pulses are accurately reflected by the laser reflection floating body, water surface foam can be isolated, the laser reflection floating body is in direct contact with a water surface, and the accuracy of the measured water level data is improved.
Optionally, the device comprises a device box, the device box is fixed on the wall of the lock chamber through an expansion bolt b, the laser displacement sensor is arranged in the device box, the laser displacement sensor is fixed on the inner wall of the device box through a U-shaped hoop b, a box door is arranged on the device box, and the bottom wall of the device box is communicated with the laser displacement sensor and the through hole of the laser emission channel.
Through adopting above-mentioned technical scheme, the equipment box is used for the installation and protects laser displacement sensor, and the through-hole of equipment box bottom is used for communicateing laser displacement sensor and laser emission passageway, makes the laser pulse of laser displacement sensor transmission reflect by laser reflection body accurately.
Optionally, an anti-interference mechanism is arranged between the equipment box and the laser emission channel; the interference preventing mechanism comprises a shielding film, the shielding film is arranged along the circumference of the through hole and the laser emission channel, and the shielding film is connected between the equipment box and the laser emission channel.
By adopting the technical scheme, the shielding film is arranged between the equipment box and the laser emission channel, so that the wave-like patterns excited by river water can be shielded, and the influence on the accuracy of water level data measurement caused by the fact that the wave-like patterns are accumulated on the laser reflection floating body after being filled into the laser emission channel is reduced; the external stimulating light can also be shielded to reduce the influence of the external stimulating light on the laser pulse.
Optionally, a plurality of blocking columns are distributed between the equipment box and the laser emission channel along the circumference of the through hole, and the blocking film is coated on the peripheries of the plurality of blocking columns.
Through adopting above-mentioned technical scheme, the setting of bumping post is used for supporting the shielding film, prevents that the shielding film from receiving wind-force influence and hindering laser pulse's transmission and reflection towards inboard deformation.
Optionally, the periphery of the laser emission channel is provided with a supporting plate, the supporting plate is provided with a hoop groove along the circumference, the laser emission channel is provided with a U-shaped hoop c at the supporting plate, the U-shaped hoop c is sleeved on the periphery of the supporting plate and embedded in the hoop groove, and two ends of the U-shaped hoop c are fixed on the wall of the lock chamber through expansion bolts c.
Through adopting above-mentioned technical scheme, layer board and U type hoop c are used for installing the laser emission passageway on the wall of lock chamber steadily, and the design hoop groove is used for promoting the steadiness to the installation of laser emission passageway.
Optionally, the supporting plate is welded on the periphery of the laser emission channel, and a reinforcing rib is welded between the supporting plate and the laser emission channel.
Through adopting above-mentioned technical scheme, set up the strengthening rib and be used for promoting the steadiness between layer board and the laser emission passageway, and then promote the steadiness to the installation of laser emission passageway.
Optionally, the bottom opening part of the laser emission channel is provided with a filter cover, and filter holes for water circulation are densely distributed on the filter cover.
By adopting the technical scheme, the filter covers with the filter holes are densely distributed, so that impurities in the water body can be shielded under the condition that water can normally circulate inside and outside the laser emission channel, and the impurities are prevented from entering the laser emission channel and influencing the measured water level data. In addition, set up the filter mantle, still be convenient for retrieve the laser reflection body at the in-process of dismantling whole laser formula fluviograph to prevent that the laser reflection body falls into the lock chamber.
Optionally, the inner wall of the filter cover is circumferentially provided with an internal thread, the outer wall of the laser emission channel is circumferentially provided with an external thread, and the filter cover is matched and fixed at the bottom of the laser emission channel through the external thread and the internal thread.
Through adopting above-mentioned technical scheme, the filter bowl is installed in the bottom of laser emission passageway like aforesaid detachably, is convenient for wash filter bowl itself, and is convenient for load and unload laser reflection body.
In summary, the present application includes at least one of the following beneficial technical effects:
1. the laser reflection floating body is arranged in the laser emission channel and can float up and down along with the fluctuation of the water level, the laser pulse emitted by the laser displacement sensor is reflected by the laser reflection floating body and then returns to the laser displacement sensor, and accurate water level data is obtained through conversion according to the time from the emission of the laser pulse to the return of the laser pulse to the reception of the laser pulse;
2. in the process of measuring the water level data in the lock chamber, the laser emission channel can limit the position of the laser reflection floating body, so that laser pulses are accurately reflected by the laser reflection floating body, water surface foam can be isolated, the laser reflection floating body is in direct contact with the water surface, and the accuracy of the measured water level data is improved.
Drawings
Fig. 1 is a schematic view of a related art ultrasonic water level gauge installed in a gate chamber.
Fig. 2 is a schematic view showing a laser type water level gauge installed in a gate chamber in an embodiment of the present application.
Fig. 3 is a schematic view of a laser type water level gauge in the embodiment of the present application.
Fig. 4 is a sectional view of a laser type water level gauge in an embodiment of the present application.
Reference numerals: 1. an ultrasonic water level gauge; 2. a lock chamber; 3. a U-shaped hoop a; 4. an expansion bolt a; 5. a laser displacement sensor; 6. a laser emission channel; 7. a laser reflective float; 8. an equipment box; 81. a box door; 82. a through hole; 9. an expansion bolt b; 10. a U-shaped hoop b; 11. an interference prevention mechanism; 111. a shielding film; 112. a bumping post; 12. a pallet; 121. a hoop groove; 13. a U-shaped hoop c; 14. an expansion bolt c; 15. reinforcing ribs; 16. a filter housing; 161. and (5) filtering holes.
Detailed Description
The present application is described in further detail below with reference to figures 2-4.
The embodiment of the application discloses a laser type water level gauge. Referring to fig. 2, 3 and 4, the laser type water level gauge is installed in the chamber 2 as an example. Specifically, the laser type water level gauge comprises a laser displacement sensor 5, a laser emission channel 6 and a laser reflection floating body 7 arranged in the laser emission channel 6, the laser emission channel 6 is made of galvanized steel pipes and is in a cylindrical shape and is arranged in a vertically through mode, the total length of the laser emission channel 6 is 5-6 m, the diameter of the laser emission channel is 150mm, when the laser emission channel is installed, the laser emission channel 6 is enabled to extend out of the highest water surface of the gate chamber 2 by 0.5-1m, so that the laser emission channel 6 is difficult to flow back through by spray on the water surface, the rest part of the laser emission channel 6 extends into the position below the water surface, and the laser emission channel 6 is arranged to be long enough to ensure that the laser reflection floating body 7 is difficult to break away from the laser emission channel 6.
Referring to fig. 3, a plurality of support plates 12 are welded to the periphery of the laser emission channel 6, the support plates 12 are formed by rolling a common steel plate, and the plurality of support plates 12 are uniformly distributed on the laser emission channel 6 along the height direction, and further, reinforcing ribs 15 are welded between the support plates 12 and the laser emission channel 6 in order to improve the stability between the support plates 12 and the laser emission channel 6. The laser emission channel 6 is sleeved with a U-shaped hoop c13 at each supporting plate 12, a hoop groove 121 is formed in the supporting plate 12 along the circumference, during installation, the U-shaped hoop c13 is directly sleeved on the periphery of the supporting plate 12 and embedded in the hoop groove 121, then the two ends of the U-shaped hoop c13 are fixed on the wall of the lock chamber 2 through expansion bolts c14, the laser emission channel 6 is stably installed on the wall of the lock chamber 2, and due to the design of the hoop groove 121 in the supporting plate 12, the laser emission channel 6 is not prone to downward movement after installation.
Referring to fig. 4, the laser reflection float 7 is made of wood or plastic, and is easily floated on the water surface, and the laser reflection float 7 is cylindrical, has a diameter of 120mm and a thickness of 60mm. The diameter of the laser reflection floating body 7 is smaller than that of the laser emission channel 6 by 30mm, so that the laser reflection floating body 7 has enough moving space in the laser emission channel 6 and is easier to float up and down along with the fluctuation of water level.
Referring to fig. 3 and 4, the laser displacement sensor 5 is installed at a position of 0.3 to 0.5m above the laser emission channel 6. Specifically, be equipped with equipment box 8 on the wall of lock chamber 2, equipment box 8 is square stainless steel box, and on equipment box 8 was fixed in the wall of lock chamber 2 through expansion bolts b9, one side of equipment box 8 wall back to lock chamber 2 was the opening setting, and it has chamber door 81 to articulate at the opening part of equipment box 8. Laser displacement sensor 5 installs in equipment box 8, specifically, overlaps on laser displacement sensor 5 to be equipped with U type hoop b10, and the bolt fastening is passed through on equipment box 8's inner wall at the both ends of U type hoop b10 to this installation of realizing laser displacement sensor 5 in equipment box 8.
The laser displacement sensor 5 is located right above the laser emission channel 6, and a through hole 82 is arranged at the bottom of the equipment box 8 in a penetrating mode and used for communicating the laser displacement sensor 5 with the laser emission channel 6. Therefore, the laser pulse emitted by the laser displacement sensor 5 is reflected by the laser reflection floating body 7 and then returns to the laser displacement sensor 5, and the data of the thickness of the laser reflection floating body 7 is added through conversion according to the time from the emission of the laser pulse to the return of the laser pulse to the reception of the laser pulse, so that accurate water level data is obtained. In the process of measuring the water level data in the lock chamber 2, the laser emission channel 6 can limit the position of the laser reflection floating body 7, so that laser pulses are accurately reflected by the laser reflection floating body 7, and can isolate water surface foams to enable the laser reflection floating body 7 to be in direct contact with the water surface, thereby improving the accuracy of the measured water level data.
Referring to fig. 3 and 4, in addition, in order to reduce the influence of the external environment on the accuracy of the measured water level data, an interference preventing mechanism 11 is provided between the equipment tank 8 and the laser emission channel 6; the interference preventing mechanism 11 comprises a shielding film 111 and a plurality of shielding columns 112, the plurality of shielding columns 112 are arranged along the circumference of the through hole 82 and the laser emission channel 6, the shielding columns 112 are welded between the equipment box 8 and the laser emission channel 6, the shielding film 111 is a plastic film and is wrapped on the periphery of the plurality of shielding columns 112, the shielding film 111 is bonded between the equipment box 8 and the laser emission channel 6, the shielding film 111 can be supported by the shielding columns 112, and the shielding film 111 is prevented from being deformed towards the inner side after being influenced by wind power to block the emission and reflection of laser pulses.
The shielding film 111 is arranged, so that the wave-shaped flowers which are stirred up by river water can be shielded, and the influence on the accuracy of water level data measurement caused by the fact that the wave-shaped flowers are poured into the laser emission channel 6 and accumulated on the laser reflection floating body 7 is reduced; the laser device can also shield external stimulating light to reduce the influence of the external stimulating light on the laser pulse.
Referring to fig. 3 and 4, a filter 16 is disposed at the bottom of the laser emission channel 6, the filter 16 is in the shape of a bottle cap, and filter holes 161 are densely distributed on the filter 16 for allowing water to flow inside and outside the laser emission channel 6. Be equipped with the internal thread on the interior border of filter mantle 16, the outer wall of laser emission passageway 6 is equipped with the external screw thread along the circumference, and filter mantle 16 matches through external screw thread and internal screw thread and fixes in the bottom of laser emission passageway 6, establishes the opening cover of laser emission passageway 6 bottom to stop impurity in the water, in order to prevent that impurity from getting into laser emission passageway 6, cause the influence to the water level data that record. In addition, the filter cover 16 is arranged, so that the laser reflection floating body 7 can be conveniently recycled in the process of disassembling the whole laser type water level gauge, and the laser reflection floating body 7 is prevented from being separated from the laser emission channel 6 and falling into the lock chamber 2.
The implementation principle of the laser type water level gauge in the embodiment of the application is as follows: laser pulses emitted by the laser displacement sensor 5 are reflected by the laser reflection floating body 7 and then return to the laser displacement sensor 5, and the data of the thickness of the laser reflection floating body 7 is added through conversion according to the time from the emission of the laser pulses to the return of the laser reflection floating body 7, so that accurate water level data is obtained. In the process of measuring the water level data in the lock chamber 2, the laser emission channel 6 can limit the position of the laser reflection floating body 7, so that laser pulses are accurately reflected by the laser reflection floating body 7, and can also isolate water surface foams, so that the laser reflection floating body 7 is in direct contact with the water surface, and the accuracy of the measured water level data is improved.
The above are preferred embodiments of the present application, and the scope of protection of the present application is not limited thereto, so: equivalent changes in structure, shape and principle of the present application shall be covered by the protection scope of the present application.
Claims (8)
1. A laser type water level gauge is characterized in that: the device comprises a laser displacement sensor (5) and a laser emission channel (6) arranged below the laser displacement sensor (5), wherein the laser displacement sensor (5) and the laser emission channel (6) are both arranged on the wall of a lock chamber (2), and a laser reflection floating body (7) is arranged in the laser emission channel (6).
2. A laser type water level gauge as claimed in claim 1, wherein: including equipment box (8), equipment box (8) are fixed in on the wall of floodgate room (2) through expansion bolts b (9), laser displacement sensor (5) are located in equipment box (8), laser displacement sensor (5) are fixed in through U type hoop b (10) on the inner wall of equipment box (8), be equipped with chamber door (81) on equipment box (8), just the diapire of equipment box (8) is equipped with the intercommunication laser displacement sensor (5) with through-hole (82) of laser emission passageway (6).
3. A laser type water level gauge as claimed in claim 2, wherein: an anti-interference mechanism (11) is arranged between the equipment box (8) and the laser emission channel (6); the interference preventing mechanism (11) comprises a shielding film (111), the shielding film (111) is arranged along the circumference of the through hole (82) and the laser emission channel (6), and the shielding film (111) is connected between the equipment box (8) and the laser emission channel (6).
4. A laser type water level gauge according to claim 3, wherein: a plurality of blocking columns (112) are distributed between the equipment box (8) and the laser emission channel (6) along the circumference of the through hole (82), and the blocking film (111) is coated on the peripheries of the blocking columns (112).
5. A laser type water level gauge according to claim 1, wherein: the periphery of laser emission passageway (6) is equipped with layer board (12), layer board (12) are equipped with hoop groove (121) along the circumference, laser emission passageway (6) in layer board (12) department is equipped with U type hoop c (13), U type hoop c (13) cover is established the periphery of layer board (12) is inlayed and is located in hoop groove (121), the both ends of U type hoop c (13) are fixed in on the wall of lock chamber (2) through expansion bolts c (14).
6. A laser type water level gauge according to claim 5, wherein: the supporting plate (12) is welded on the periphery of the laser emission channel (6), and reinforcing ribs (15) are welded between the supporting plate (12) and the laser emission channel (6).
7. A laser type water level gauge according to claim 1, wherein: the bottom opening part of the laser emission channel (6) is provided with a filter cover (16), and filter holes (161) for water circulation are densely distributed in the filter cover (16).
8. The laser type water level gauge according to claim 7, wherein: the inner wall of the filter cover (16) is provided with internal threads along the circumference, the outer wall of the laser emission channel (6) is provided with external threads along the circumference, and the filter cover (16) is matched and fixed with the internal threads through the external threads and the internal threads at the bottom of the laser emission channel (6).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222729667.8U CN218411362U (en) | 2022-10-15 | 2022-10-15 | Laser type water level gauge |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222729667.8U CN218411362U (en) | 2022-10-15 | 2022-10-15 | Laser type water level gauge |
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| Publication Number | Publication Date |
|---|---|
| CN218411362U true CN218411362U (en) | 2023-01-31 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202222729667.8U Expired - Fee Related CN218411362U (en) | 2022-10-15 | 2022-10-15 | Laser type water level gauge |
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| Country | Link |
|---|---|
| CN (1) | CN218411362U (en) |
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2022
- 2022-10-15 CN CN202222729667.8U patent/CN218411362U/en not_active Expired - Fee Related
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| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20230131 |