CN220153674U - Anti-interference liquid level sensor - Google Patents
Anti-interference liquid level sensor Download PDFInfo
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- CN220153674U CN220153674U CN202323006639.4U CN202323006639U CN220153674U CN 220153674 U CN220153674 U CN 220153674U CN 202323006639 U CN202323006639 U CN 202323006639U CN 220153674 U CN220153674 U CN 220153674U
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- 239000007788 liquid Substances 0.000 title claims abstract description 107
- 230000001681 protective effect Effects 0.000 claims abstract description 13
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 39
- 239000007921 spray Substances 0.000 claims description 32
- 238000004140 cleaning Methods 0.000 claims description 12
- 239000002244 precipitate Substances 0.000 claims description 10
- 239000000463 material Substances 0.000 claims description 6
- 230000008878 coupling Effects 0.000 claims description 2
- 238000010168 coupling process Methods 0.000 claims description 2
- 238000005859 coupling reaction Methods 0.000 claims description 2
- 239000013049 sediment Substances 0.000 abstract description 16
- 238000005259 measurement Methods 0.000 abstract description 14
- 238000010586 diagram Methods 0.000 description 2
- 230000005484 gravity Effects 0.000 description 2
- 230000002706 hydrostatic effect Effects 0.000 description 2
- WABPQHHGFIMREM-UHFFFAOYSA-N lead(0) Chemical compound [Pb] WABPQHHGFIMREM-UHFFFAOYSA-N 0.000 description 2
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000000919 ceramic Substances 0.000 description 1
- 238000011109 contamination Methods 0.000 description 1
- 238000009792 diffusion process Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 230000006698 induction Effects 0.000 description 1
- 238000005272 metallurgy Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000000047 product Substances 0.000 description 1
- 238000004064 recycling Methods 0.000 description 1
- 229910052710 silicon Inorganic materials 0.000 description 1
- 239000010703 silicon Substances 0.000 description 1
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- Measurement Of Levels Of Liquids Or Fluent Solid Materials (AREA)
Abstract
The utility model relates to the technical field of pressure type liquid level meters, in particular to an anti-interference liquid level sensor, which comprises a liquid level sensor body, wherein a protective sleeve is arranged on the liquid level sensor body, the protective sleeve comprises a sleeve joint section and an empty pipe section, the sleeve joint section is connected with the liquid level sensor body, the empty pipe section extends out of a sensing surface of the liquid level sensor body, an outer expanding plate is arranged at the end part of the empty pipe section and is used for increasing the area of the end part of the empty pipe section and preventing the empty pipe section from sinking into sediment at the bottom of liquid to be measured. According to the anti-interference liquid level sensor provided by the utility model, the sensing surface of the liquid level sensor body can be completely hidden in the hollow pipe section, and further, the outer display plate is arranged at the end part of the hollow pipe section and used for increasing the area of the end part of the hollow pipe section, so that the outer display plate can prevent the hollow pipe section from sinking into the sediment at the bottom of the liquid to be measured, the sensing surface of the sensor body is effectively prevented from being contacted with the sediment, and the novel measurement accuracy is ensured.
Description
Technical Field
The utility model relates to the technical field of pressure type liquid level meters, in particular to an anti-interference liquid level sensor.
Background
The pressure type liquid level meter is a common liquid level meter, based on the principle that the measured hydrostatic pressure is proportional to the height of the liquid, adopts an isolated diffusion silicon sensitive element or a ceramic capacitance pressure sensitive sensor, converts the hydrostatic pressure into an electric signal, and then converts the electric signal into a standard electric signal through temperature compensation and linear correction, and is generally suitable for liquid level measurement of various media in petrochemical industry, metallurgy, electric power, pharmacy, water supply and drainage, environmental protection and other systems and industries.
The pressure type liquid level meter is generally composed of a pressure sensor, a pressure guide tube and an indicator. In actual measurement operation, because the depth of the liquid to be measured cannot be accurately judged, a pressure sensor and a pressure guide tube are put into the liquid to be measured together, after the pressure sensor reaches the bottom of the liquid, the pressure guide tube is recovered to enable the pressure sensor to be separated from the bottom of the liquid to be measured by a certain distance, and the measurement operation is performed after the pressure sensor hovers stably. However, in such an operation mode, when there is a precipitate at the bottom of the liquid to be measured, the bottom of the liquid to be measured contacted with the pressure sensor may be contaminated with the precipitate on the sensing surface, thereby affecting the measurement accuracy.
Therefore, how to avoid contamination of the sensing surface of the pressure sensor with sediment is a technical problem to be solved in the prior art when the pressure type liquid level meter is put in.
Disclosure of Invention
The utility model aims at: to the problem that exists when the bottom of the liquid to be measured exists the precipitate, the bottom contact of pressure sensor and liquid to be measured can be infected with the precipitate on its response face, and then influence the measurement accuracy, provide an anti-interference liquid level sensor.
In order to achieve the above purpose, the technical scheme adopted by the utility model is as follows:
the utility model provides an anti-interference liquid level sensor, includes the liquid level sensor body, be provided with protective sleeve on the liquid level sensor body, protective sleeve is including cup jointing section and empty tube section, cup jointing section with the liquid level sensor body coupling, the empty tube section extends the sensing surface of liquid level sensor body, just the center pin of empty tube section with the center pin coincidence of liquid level sensor body, the tip of empty tube section is provided with the abduction board, the abduction board is used for increasing the area of empty tube section tip prevents the empty tube section falls into in the precipitate of liquid bottom that awaits measuring.
Preferably, the abduction plate forms a closed ring-like structure around the end of the hollow tube section.
Preferably, the surface of the abduction plate is provided with a plurality of through holes.
Preferably, the outer surfaces of the protective sleeve and the abduction plate are further provided with a cushion layer, and the cushion layer is made of a sponge material or made of a rubber material.
Preferably, the sleeving section is detachably connected with the liquid level sensor body.
Preferably, the outer panel is further provided with a counterweight device, the counterweight device comprises a counterweight and a connecting rope, one end of the connecting rope is connected with the outer panel, the other end of the connecting rope is connected with the counterweight, and the counterweight device is used for enabling the liquid level sensor body to hover vertically in the liquid to be measured.
Preferably, the connection rope is in rotatable connection fit with the abduction board, and/or the connection rope is in rotatable connection fit with the balancing weight.
Preferably, the outer panel is further provided with a cleaning device, the cleaning device comprises a water pump, a storage battery and a spray head, the water pump and the storage battery are oppositely arranged on two sides of the outer panel, the weight of the water pump is the same as that of the storage battery, the spray head is arranged on the hollow pipe section, a water outlet of the water pump is communicated with the spray head, and when the water pump is started, the spray head can spray water flow into the hollow pipe section.
Preferably, the number of the spray heads is several, and the spray heads are arranged around the hollow pipe section at equal intervals.
Preferably, the direction of the water flow sprayed by the spray head is perpendicular to the central axis of the hollow pipe section.
In summary, due to the adoption of the technical scheme, the beneficial effects of the utility model are as follows:
1. according to the anti-interference liquid level sensor, the protective sleeve is arranged to enable the sensing surface of the liquid level sensor body to be completely hidden in the hollow pipe section, and further, the outer expanding plate is arranged at the end part of the hollow pipe section and is used for increasing the area of the end part of the hollow pipe section, so that the liquid level sensor can be ensured to keep a vertical posture when reaching the bottom of liquid to be measured, the outer expanding plate can prevent the hollow pipe section from sinking into sediment at the bottom of the liquid to be measured, the sensing surface of the sensor body is further effectively prevented from being contacted with the sediment, and the measurement accuracy of the anti-interference liquid level sensor is ensured;
2. the anti-interference liquid level sensor is characterized in that a counterweight device is further arranged on the abduction plate, the counterweight device comprises a counterweight block and a connecting rope, one end of the connecting rope is connected with the abduction plate, the other end of the connecting rope is connected with the counterweight block, and the counterweight device is used for enabling the liquid level sensor body to vertically hover in liquid to be measured. The counterweight device utilizes the gravity of the counterweight device to make the air duct straighten, so as to ensure that the liquid level sensor body can hover vertically in the liquid to be measured, thereby further improving the accuracy of the novel measurement. On the other hand, in this embodiment, the weight device is disposed below the abduction plate, and the weight device can relatively separate the liquid level sensor body from the sediment at the bottom of the liquid to be measured, so that the contact between the sensing surface of the sensor body and the sediment is further avoided, and the accuracy of the novel measurement is ensured;
3. the anti-interference liquid level sensor is characterized in that a cleaning device is further arranged on the abduction board, the cleaning device comprises a water pump, a storage battery and a spray head, the water pump and the storage battery are oppositely arranged on two sides of the abduction board, the water pump and the storage battery are the same in weight, the spray head is arranged on the hollow pipe section, a water outlet of the water pump is communicated with the spray head, and when the water pump is started, the spray head can spray water flow into the hollow pipe section. The cleaning device is arranged, water flow is sprayed into the hollow pipe section by the cleaning device before the measurement operation is formally performed, so that a turbulent flow is formed in the inner cavity of the hollow pipe section, sediment attached to the sensing surface of the liquid level sensor body can be removed, and the measurement accuracy is further ensured.
Drawings
FIG. 1 is a schematic diagram of a tamper resistant level sensor in accordance with example 1;
FIG. 2 is a schematic cross-sectional view of an anti-interference liquid level sensor in embodiment 1;
FIG. 3 is a schematic view of a tamper resistant level sensor of embodiment 2;
fig. 4 is a schematic structural diagram of an anti-interference liquid level sensor in embodiment 3.
The marks in the figure: the liquid level sensor comprises a liquid level sensor body, a 2-protective sleeve, a 3-sleeving section, a 4-hollow pipe section, a 5-abduction plate, a 6-through hole, a 7-buffer cushion layer, an 8-counterweight device, a 9-counterweight block, a 10-connecting rope, a 12-water pump, a 13-storage battery and a 14-spray head.
Detailed Description
The present utility model will be described in detail with reference to the accompanying drawings.
In order to make the objects, technical solutions and advantages of the embodiments of the present utility model more clear, the technical solutions of the embodiments of the present utility model will be clearly and completely described below with reference to the accompanying drawings. It will be apparent that the described embodiments are some, but not all, embodiments of the utility model.
Thus, the following detailed description of the embodiments of the utility model is not intended to limit the scope of the utility model, as claimed, but is merely representative of some embodiments of the utility model. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.
It should be noted that, under the condition of no conflict, the embodiments of the present utility model and the features and technical solutions in the embodiments may be combined with each other.
It should be noted that: like reference numerals and letters denote like items in the following figures, and thus once an item is defined in one figure, no further definition or explanation thereof is necessary in the following figures.
In the description of the present utility model, it should be noted that, the terms "upper", "lower", and the like indicate an azimuth or a positional relationship based on the azimuth or the positional relationship shown in the drawings, or an azimuth or a positional relationship conventionally put in use of the inventive product, or an azimuth or a positional relationship conventionally understood by those skilled in the art, such terms are merely for convenience of describing the present utility model and simplifying the description, and do not indicate or imply that the apparatus or element to be referred must have a specific azimuth, be constructed and operated in a specific azimuth, and thus should not be construed as limiting the present utility model. Furthermore, the terms "first," "second," and the like, are used merely to distinguish between descriptions and should not be construed as indicating or implying relative importance.
Example 1
As shown in fig. 1 and 2, the anti-interference liquid level sensor of the utility model comprises a liquid level sensor body 1, wherein a protective sleeve 2 is arranged on the liquid level sensor body 1, the protective sleeve 2 comprises a sleeve joint section 3 and an empty pipe section 4, the sleeve joint section 3 is connected with the liquid level sensor body 1, the empty pipe section 4 extends out of an induction surface of the liquid level sensor body 1, a central axis of the empty pipe section 4 coincides with a central axis of the liquid level sensor body 1, an outer expansion plate 5 is arranged at the end part of the empty pipe section 4, and the outer expansion plate 5 is used for increasing the area of the end part of the empty pipe section 4 and preventing the empty pipe section 4 from sinking into sediment at the bottom of liquid to be detected.
Adopt an anti-interference liquid level sensor, establish protective sleeve 2 can make the sensing surface of liquid level sensor body 1 is hidden completely in the empty pipe section 4, further the tip setting of empty pipe section 4 the abduction board 5 is used for the increase the area of empty pipe section 4 tip can be made it keeps vertical gesture to ensure itself when liquid level sensor reaches the bottom of liquid to be measured, and abduction board 5 can prevent empty pipe section 4 is absorbed in the precipitate of liquid bottom to be measured, and then has effectively avoided sensor body's sensing surface and precipitate contact have ensured this novel measuring precision.
As a preferred embodiment, further on the basis of the above manner, the abduction plate 5 forms a closed circular ring-like structure around the end of the hollow tube section 4. By adopting the structure, the pressure acting on the sediment is more uniform when the abduction plate 5 contacts the sediment at the bottom of the liquid to be detected, and the hollow pipe section 4 is further prevented from sinking into the sediment at the bottom of the liquid to be detected. Moreover, the symmetry of this novel overall structure can be ensured to adopt this kind of structure setting, and then put in when level sensor, can improve level sensor's stability of the gesture of removing in liquid makes level sensor can keep vertical gesture to reach the bottom of liquid that awaits measuring, thereby has further avoided sensor body's sensing face and precipitate contact have ensured this novel measuring precision.
As a preferred embodiment, further on the basis of the above manner, the surface of the abduction plate 5 is provided with a plurality of through holes 6.
The setting of through-hole 6 in this embodiment can reduce to a certain extent the manger plate area of abduction board 5, and then put in/retrieve when level sensor, level sensor's resistance that receives reduces, has improved this practicality in-service use. Moreover, the arrangement of the through holes 6 can reduce the weight of the abduction plate 5 to a certain extent, and further prevent the hollow pipe section 4 from sinking into the sediment at the bottom of the liquid to be measured.
As a preferred embodiment, further, on the basis of the above manner, the outer surfaces of the protective sleeve 2 and the abduction plate 5 are further provided with a cushion layer 7, and the cushion layer 7 is made of a sponge material, or the cushion layer 7 is made of a rubber material.
Specifically, in this embodiment, the cushion layer 7 is integrally formed on the outer surfaces of the protection sleeve 2 and the abduction plate 5. In this embodiment, the inventors consider that collision is unavoidable when the liquid level sensor is put in/recovered. Based on this, the present embodiment provides the cushion layer 7 on the outer surfaces of the protection sleeve 2 and the abduction plate 5. So when colliding with, buffer layer 7 can absorb the impact force that produces when colliding with, and then reduces the risk that liquid level sensor in use damaged.
As a preferred embodiment, further, on the basis of the above mode, the socket section 3 is detachably connected with the liquid level sensor body 1.
Specifically, in this embodiment, the socket section 3 is in threaded connection with the liquid level sensor body 1. By adopting the structure, the protection sleeve 2 and the abduction plate 5 can be conveniently replaced when damaged, and the use cost is reduced. On the other hand, adopting this kind of structure setting, can also changing corresponding dimension specification abduction board 5 according to the difference of the precipitate bearing capacity of liquid bottom that awaits measuring, further improved this novel practicality in-service use.
Example 2
As shown in fig. 3, according to the anti-interference liquid level sensor of the present utility model, based on the above manner, further, a counterweight device 8 is further disposed on the outer board 5, the counterweight device 8 includes a counterweight 9 and a connecting rope 10, one end of the connecting rope 10 is connected with the outer board 5, the other end is connected with the counterweight 9, and the counterweight device 8 is used for enabling the liquid level sensor body 1 to hover vertically in the liquid to be measured.
In this embodiment, the weight device 8 makes the air duct straighten by utilizing its own gravity higher, and then ensures that the liquid level sensor body 1 can hover in the liquid to be measured perpendicularly, thereby further improving the precision of the novel measurement. On the other hand, in this embodiment, the counter weight device 8 sets up the below of abduction board 5, the counter weight device 8 can with separate relatively between the deposit of liquid level sensor body 1 and the liquid bottom that awaits measuring, has further avoided the response face and the deposit contact of sensor body have ensured this novel measuring precision.
As a preferred embodiment, further, on the basis of the above manner, the connection rope 10 is in rotatable connection with the abduction board 5, and/or the connection rope 10 is in rotatable connection with the counterweight 9.
Specifically, a rotating bearing is provided at the connection part of the connection rope 10 and the abduction plate 5, and/or a rotating bearing is provided at the connection part of the connection rope 10 and the weight 9. By adopting the structure, the throwing/recycling of the liquid level sensor can be avoided, the balancing weight 9 drives the liquid level sensor to rotate, and further the connection of the gas guide pipe on the liquid level sensor body 1 is avoided to twist/bend, so that the practicability of the novel liquid level sensor in actual use is improved.
Example 3
As shown in fig. 4, according to the anti-interference liquid level sensor of the present utility model, on the basis of the above manner, a cleaning device is further provided on the outer panel 5, the cleaning device includes a water pump 12, a storage battery 13 and a spray head 14, the water pump 12 and the storage battery 13 are relatively disposed on two sides of the outer panel 5, the weights of the water pump 12 and the storage battery 13 are the same, the spray head 14 is disposed on the hollow pipe section 4, a water outlet of the water pump 12 is communicated with the spray head 14, and when the water pump 12 is started, the spray head 14 can spray water flow into the hollow pipe section 4.
Specifically, in this embodiment, a clamping seat is provided on the abduction board 5, and the water pump 12 and the storage battery 13 are detachably fixed on the clamping seat; a lead wire is arranged in the abduction plate 5, and the electric energy of the storage battery 13 is transmitted to the water pump 12 through the lead wire; a water channel is further arranged in the abduction plate 5, and the water channel is communicated with the water pump 12 and the spray head 14; in this embodiment, the cleaning device is arranged, before the formal measurement operation, the cleaning device is utilized to spray water flow into the hollow pipe section 4, so that a turbulent flow is formed in the internal cavity of the hollow pipe section 4, and further, sediment attached to the sensing surface of the liquid level sensor body 1 can be removed, and the measurement accuracy is further ensured.
As a preferred embodiment, further on the basis of the above mode, the direction of the water flow sprayed by the spray head 14 is perpendicular to the central axis of the hollow pipe section 4. By adopting the structure, the water flow sprayed by the spray head 14 can be prevented from damaging the sensing surface of the liquid level sensor body 1, and the reliability and the practicability of the novel liquid level sensor in actual use are improved.
As a preferred embodiment, further on the basis of the above manner, the number of the spray heads 14 is several, and the spray heads 14 are equidistantly arranged around the hollow pipe section 4. By adopting the structure, the inner cavity of the hollow pipe section 4 can form stronger turbulence, so that sediment attached to the sensing surface of the liquid level sensor body 1 can be thoroughly removed, and the measuring accuracy is further ensured.
The foregoing description of the preferred embodiments of the utility model is not intended to be limiting, but rather is intended to cover all modifications, equivalents, and alternatives falling within the spirit and principles of the utility model.
Claims (10)
1. The utility model provides an anti-interference liquid level sensor, its characterized in that, includes the liquid level sensor body, be provided with protective sleeve on the liquid level sensor body, protective sleeve includes cup joints section and empty pipe section, cup joint the section with the liquid level sensor body coupling, the empty pipe section extends the sensing surface of liquid level sensor body, just the center pin of empty pipe section with the center pin coincidence of liquid level sensor body, the tip of empty pipe section is provided with the abduction board, the abduction board is used for increasing the area of empty pipe section tip prevents the empty pipe section falls into in the precipitate of liquid bottom that awaits measuring.
2. The tamper resistant level sensor of claim 1, wherein the flared plate forms a closed annular structure around an end of the hollow tube section.
3. The tamper resistant level sensor of claim 2, wherein a surface of the abduction plate is provided with a plurality of through holes.
4. The tamper resistant level sensor of claim 3, wherein the outer surfaces of the protective sleeve and the abduction plate are further provided with a cushion layer, the cushion layer being made of a sponge material or a rubber material.
5. The tamper resistant level sensor of any one of claims 1-4, wherein the socket section is detachably connected to the level sensor body.
6. The anti-interference liquid level sensor according to claim 1, wherein the outer panel is further provided with a counterweight device, the counterweight device comprises a counterweight and a connecting rope, one end of the connecting rope is connected with the outer panel, the other end of the connecting rope is connected with the counterweight, and the counterweight device is used for enabling the liquid level sensor body to hover vertically in liquid to be measured.
7. The tamper resistant level sensor of claim 6, wherein the connection cord is in rotatable connection engagement with the abduction plate and/or the connection cord is in rotatable connection engagement with the weight.
8. The anti-interference liquid level sensor according to claim 1, wherein the outer panel is further provided with a cleaning device, the cleaning device comprises a water pump, a storage battery and a spray head, the water pump and the storage battery are oppositely arranged on two sides of the outer panel, the water pump and the storage battery are the same in weight, the spray head is arranged on the hollow pipe section, a water outlet of the water pump is communicated with the spray head, and when the water pump is started, the spray head can spray water flow into the hollow pipe section.
9. The tamper resistant level sensor of claim 8, wherein the direction of the jet of water from the jet head is perpendicular to the central axis of the hollow tube section.
10. The tamper resistant level sensor of claim 9, wherein the number of spray heads is several and the spray heads are equally spaced around the hollow tube section.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202323006639.4U CN220153674U (en) | 2023-11-08 | 2023-11-08 | Anti-interference liquid level sensor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202323006639.4U CN220153674U (en) | 2023-11-08 | 2023-11-08 | Anti-interference liquid level sensor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220153674U true CN220153674U (en) | 2023-12-08 |
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ID=89012955
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202323006639.4U Active CN220153674U (en) | 2023-11-08 | 2023-11-08 | Anti-interference liquid level sensor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220153674U (en) |
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2023
- 2023-11-08 CN CN202323006639.4U patent/CN220153674U/en active Active
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