CN219795362U - Liquid level detection and calibration device of urea tank - Google Patents
Liquid level detection and calibration device of urea tank Download PDFInfo
- Publication number
- CN219795362U CN219795362U CN202321044643.7U CN202321044643U CN219795362U CN 219795362 U CN219795362 U CN 219795362U CN 202321044643 U CN202321044643 U CN 202321044643U CN 219795362 U CN219795362 U CN 219795362U
- Authority
- CN
- China
- Prior art keywords
- urea tank
- liquid level
- pipe
- connecting pipe
- communicated
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
- 239000007788 liquid Substances 0.000 title claims abstract description 120
- XSQUKJJJFZCRTK-UHFFFAOYSA-N Urea Chemical compound NC(N)=O XSQUKJJJFZCRTK-UHFFFAOYSA-N 0.000 title claims abstract description 105
- 239000004202 carbamide Substances 0.000 title claims abstract description 105
- 238000001514 detection method Methods 0.000 title claims abstract description 37
- 238000007789 sealing Methods 0.000 claims abstract description 40
- 238000009423 ventilation Methods 0.000 claims description 5
- 238000000034 method Methods 0.000 description 17
- 238000004519 manufacturing process Methods 0.000 description 3
- 238000004891 communication Methods 0.000 description 2
- 238000007599 discharging Methods 0.000 description 2
- 238000005553 drilling Methods 0.000 description 2
- 238000005259 measurement Methods 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000011897 real-time detection Methods 0.000 description 2
- 239000000853 adhesive Substances 0.000 description 1
- 230000001070 adhesive effect Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000008878 coupling Effects 0.000 description 1
- 238000010168 coupling process Methods 0.000 description 1
- 238000005859 coupling reaction Methods 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000003292 glue Substances 0.000 description 1
- 238000007689 inspection Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 238000012544 monitoring process Methods 0.000 description 1
- 229910052755 nonmetal Inorganic materials 0.000 description 1
- 238000010079 rubber tapping Methods 0.000 description 1
- 239000012780 transparent material Substances 0.000 description 1
- 230000000007 visual effect Effects 0.000 description 1
Landscapes
- Exhaust Gas After Treatment (AREA)
Abstract
The utility model discloses a liquid level detection and calibration device of a urea tank, which comprises a Q-shaped connecting pipe, wherein one end of the Q-shaped connecting pipe is connected to a liquid discharge port at the bottom of the urea tank; the oil passing bolt passes through one end of the Q-shaped connecting pipe and is then screwed into a liquid discharge screw hole at the bottom of the urea tank; one end of the first quick connector is connected with the other end of the Q-type connecting pipe; one end of the first connecting pipe is connected with the other end of the first quick connector; the liquid inlet of the three-way joint is connected with the other end of the first connecting pipe; the lower end of the observation tube is communicated with a first liquid outlet of the three-way joint; one end of the elbow is communicated with the upper end of the observation tube; the vent pipe is arranged above the top wall of the urea tank, one end of the vent pipe is communicated with the other end of the elbow in a sealing way, and a one-way vent valve is arranged at the other end of the vent pipe; the liquid level scale is arranged on the outer side wall of the urea tank and is tightly attached to the observation tube, the lower end of the liquid level scale is provided with zero position scale marks, and the upper end of the liquid level scale is provided with full position scale marks. Thereby, the liquid level condition of the urea tank can be intuitively displayed through indoor observation.
Description
Technical Field
The utility model relates to the field of manufacturing, in particular to a liquid level detection and calibration device of a urea tank for engine aftertreatment.
Background
According to the relevant regulations of national emission, OBD function inspection is carried out in a national six-engine aftertreatment system, urea liquid level detection is one item, a urea tank is generally a black plastic tank, no liquid level display is arranged on the tank, the comparison between the urea liquid level in an actual urea tank and the liquid level displayed by a urea sensor cannot be observed in the detection process, the liquid level displayed by the sensor does not necessarily accurately reflect the actual situation, and a user cannot accurately carry out urea addition; some companies realize the urea liquid level checking function by drilling holes on the tank and comparing the liquid level with the liquid level displayed by the urea sensor after installing the liquid level meter, but the method is realized by drilling holes on the urea tank and using a method for damaging the urea tank, so that the detection cost is increased.
In the prior patent, a urea liquid level real-time detection method and a urea liquid level real-time detection system have the application number: cn201910882290.X publication No.: CN110595579a, which is a method for monitoring urea consumption and liquid level in real time by using a sensor. The method for judging whether the liquid level is accurate or not by physical manual observation is lacked, and the estimation of the user adding and using cost is not accurate enough.
Therefore, there is an urgent need to design and manufacture a device and a method for detecting and calibrating the liquid level of a urea tank without damaging the urea tank in the process of detection.
The information disclosed in this background section is only for enhancement of understanding of the general background of the utility model and should not be taken as an acknowledgement or any form of suggestion that this information forms the prior art already known to a person of ordinary skill in the art.
Disclosure of Invention
The utility model aims to provide a liquid level detection and calibration device of a urea tank, which can intuitively display the liquid level condition of the urea tank through a physical observation means.
Another object of the present utility model is to provide a method for detecting and calibrating the liquid level of a urea tank, which can detect and calibrate the measurement error of a liquid level sensor by visual physical observation means.
In order to achieve the above purpose, the utility model provides a liquid level detection and calibration device of a urea tank, which comprises a Q-type connecting pipe, an oil passing bolt, a first quick connector, a first connecting pipe, a three-way connector, an observation pipe, an elbow, a vent pipe and a liquid level scale; one end of the Q-shaped connecting pipe is connected with a liquid outlet at the bottom of the urea tank in a sealing way; the oil passing bolt passes through one end of the Q-shaped connecting pipe and is then screwed into a liquid discharge screw hole at the bottom of the urea tank; one end of the first quick connector is connected with the other end of the Q-type connecting pipe in a sealing way; one end of the first connecting pipe is connected with the other end of the first quick connector in a sealing way; the liquid inlet of the three-way joint is connected with the other end of the first connecting pipe in a sealing way; the observation tube is closely attached to the outer side wall of the urea tank, and the lower end of the observation tube is communicated with the first liquid outlet of the three-way joint in a sealing way; one end of the elbow is communicated with the upper end of the observation tube in a sealing way; the vent pipe is arranged above the top wall of the urea tank, one end of the vent pipe is communicated with the other end of the elbow in a sealing way, and the other end of the vent pipe is communicated with the atmosphere; the one-way vent valve is arranged at the other end of the vent pipe; the liquid level scale is arranged on the outer side wall of the urea tank and is tightly attached to the observation tube, the lower end of the liquid level scale is provided with zero position scale marks, and the upper end of the liquid level scale is provided with full position scale marks.
In a preferred embodiment, the liquid level detection and calibration device of the urea tank further comprises a first sealing gasket, a second connecting pipe, a second quick connector and a valve; the oil passing bolt passes through the first sealing gasket, passes through one end of the Q-shaped connecting pipe, passes through the second sealing gasket, and is finally screwed in a liquid discharge screw hole at the bottom of the urea tank; one end of the second connecting pipe is communicated with a second liquid outlet of the three-way joint in a sealing way; one end of the second quick connector is communicated with the other end of the second connecting pipe in a sealing way; the liquid inlet of the valve is communicated with the other end of the second quick connector in a sealing way.
In a preferred embodiment, the first connection pipe is the same length as the second connection pipe.
In a preferred embodiment, the first connection tube and the second connection tube have different lengths.
In a preferred embodiment, the liquid level detection and calibration device of the urea tank further comprises a first pipe fixing seat and a second pipe fixing seat which are arranged on the outer side wall of the urea tank, the upper part of the observation pipe is buckled on the first pipe fixing seat, and the lower part of the observation pipe is buckled on the second pipe fixing seat.
In a preferred embodiment, the bend angle of the bend is not less than 90 °.
Compared with the prior art, the liquid level detection and calibration device of the urea tank has the following beneficial effects: the scheme skillfully utilizes the liquid outlet of the urea tank, forms a physical communicating vessel structure with the urea tank together with a Q-type connecting pipe, an oil passing bolt, a quick connector, a connecting pipe, a three-way connector, an observation pipe, an elbow, a vent pipe, a liquid level scale and the like, and can intuitively display the liquid level condition of the urea tank; meanwhile, the liquid level error of the liquid level sensor of the urea tank can be simply, effectively and quickly detected and calibrated by the liquid level detection and calibration device and the liquid level detection and calibration method; install the urea jar of this scheme's liquid level detection calibrating device, both can directly perceivedly show the liquid level condition of urea jar through the physics, also can show the liquid level condition of urea jar through the liquid level display through the electron, need not destroy the structure of urea jar itself moreover, have the advantage of one-step multiple, can extensively promote.
Drawings
FIG. 1 is an exploded view of a liquid level detection calibration device according to an embodiment of the present utility model;
FIG. 2 is a perspective view of a liquid level detection calibration device according to an embodiment of the present utility model;
fig. 3 to 6 are schematic structural views of a Q-type adapter according to an embodiment of the present utility model;
fig. 7 to 11 are schematic structural views of a through-oil bolt according to an embodiment of the present utility model;
FIG. 12 is a flow chart of a method for calibrating liquid level detection according to an embodiment of the utility model.
The main reference numerals illustrate:
1-first sealing gasket, 2-Q type connecting pipe, 3-second sealing gasket, 4-oil passing bolt, 5-first quick connector, 6-first connecting pipe, 7-tee joint, 8-second connecting pipe, 9-second quick connector, 10-valve, 11-observation pipe, 12-first pipe fixing seat, 13-second pipe fixing seat, 14-elbow, 15-vent pipe, 16 liquid level scale, 17 urea tank, 1701-liquid filling opening, 1702-liquid discharging opening, A-zero position scale mark, B-full position scale mark and actual reading of a-liquid level sensor.
Detailed Description
The following detailed description of embodiments of the utility model is, therefore, to be taken in conjunction with the accompanying drawings, and it is to be understood that the scope of the utility model is not limited to the specific embodiments.
Throughout the specification and claims, unless explicitly stated otherwise, the term "comprise" or variations thereof such as "comprises" or "comprising", etc. will be understood to include the stated element or component without excluding other elements or components.
As shown in fig. 1 to 11, a liquid level detection and calibration device for a urea tank according to a preferred embodiment of the present utility model mainly includes Q-type connection pipe 2, oil passing bolt 4, first quick connector 5, first connection pipe 6, three-way connector 7, observation pipe 11, elbow 14, vent pipe 15, liquid level gauge 16, and the like. One end of the Q-type connecting pipe 2 is connected with a liquid discharge port 1702 at the bottom of the urea tank 17 in a sealing way. The oil passing bolt 4 passes through one end of the Q-shaped connecting pipe 2 and is screwed in a tapping screw hole at the bottom of the urea tank 17. One end of the first quick connector 5 is connected with the other end of the Q-type connecting pipe 2 in a sealing way; one end of the first connecting pipe 6 is in sealing connection with the other end of the first quick connector 5. The liquid inlet of the three-way joint 7 is connected with the other end of the first connecting pipe 6 in a sealing way. The observation tube 11 is closely attached to the outer side wall of the urea tank 17, and the lower end of the observation tube 11 is communicated with the first liquid outlet of the three-way joint 7 in a sealing mode. One end of the elbow 14 is communicated with the upper end of the observation tube 11 in a sealing way; the breather pipe 15 is arranged above the top wall of the urea tank 17, one end of the breather pipe 15 is communicated with the other end of the elbow 14 in a sealing way, and the other end of the breather pipe 15 is communicated with the atmosphere. The liquid level scale 16 is arranged on the outer side wall of the urea tank 17 and is closely attached to the observation tube 11, the lower end of the liquid level scale 16 is provided with a zero position scale mark A, and the upper end of the liquid level scale 16 is provided with a full position scale mark B.
In some embodiments, the device for calibrating the level detection of the urea tank 17 further comprises a first gasket 1 and a second gasket 3, a second connection pipe 8, a second quick coupling 9 and a valve 10. The oil passing bolt 4 firstly passes through the first sealing gasket 1, then passes through one end of the Q-shaped connecting pipe 2, then passes through the second sealing gasket 3, and finally is screwed in a liquid discharging screw hole at the bottom of the urea tank 17. One end of the second connecting pipe 8 is communicated with a second liquid outlet of the three-way joint 7 in a sealing way; one end of the second quick connector 9 is in sealing communication with the other end of the second adapter tube 8. The liquid inlet of the valve 10 is communicated with the other end of the second quick connector 9 in a sealing way.
Referring to fig. 2 to 11, in some embodiments, the Q-type connection pipe 2, the oil passing bolt 4, the first gasket 1, the second gasket 3, the first quick connector 5, the second quick connector 9, the first connection pipe 6, the second connection pipe 8 and the valve 10 of the present embodiment may be universal parts, and the observation pipe 11 is made of transparent materials. The lengths of the first connecting pipe 6 and the second connecting pipe 8 can be the same or different, the length of the first connecting pipe 6 is mainly used for controlling the observation pipe 11 to be attached to the side wall of the urea tank 17 as much as possible, and the second joint pipe is mainly used for controlling the installation position of the valve 10.
In some embodiments, the liquid level detection calibration device of the urea tank 17 further comprises a first pipe fixing seat 12 and a second pipe fixing seat 13 arranged on the outer side wall of the urea tank 17, the upper portion of the observation pipe 11 is buckled on the first pipe fixing seat 12, and the lower portion of the observation pipe 11 is buckled on the second pipe fixing seat 13. The first pipe fixing seat 12 and the second pipe fixing seat 13 can be adhered to the side wall of the urea tank 17 by adopting a general piece with back glue, the self structure of the urea tank 17 is not damaged, and the first pipe fixing seat and the second pipe fixing seat can be matched with the observation pipe 11 in a clamping way.
Referring to fig. 2, in some embodiments, the bend angle of the elbow 14 is preferably not less than 90 °, and in addition, a one-way ventilation valve may be installed at the other end of the ventilation pipe 15, so that the liquid level detection calibration device of the urea tank 17 is ensured to be in communication with the atmosphere, and urea liquid can be prevented from overflowing from the ventilation pipe 15 when the vehicle runs or jolts.
As shown in fig. 12, a method for calibrating liquid level detection of a urea tank according to a preferred embodiment of the present utility model, which is applied to the liquid level detection and calibration apparatus as described above, includes: opening the valve 10, evacuating the urea tank 17 of liquid, and then closing the valve 10; the communication software is used for connecting a liquid level sensor on the urea tank 17 and reading a liquid level signal value; unscrewing a screw cap of a liquid filling port 1701 of the urea tank 17, and filling urea solution into the urea tank 17 to enable the value of a liquid level sensor of the urea tank 17 to be just 0; marking the liquid level in the urea tank 17 corresponding to the observation tube 11 at the moment as a zero scale mark A; unscrewing the screw cap screwed on the liquid filling port 1701 of the urea tank 17 again, and continuously filling urea solution into the urea tank 17 to ensure that the value of the liquid level sensor of the urea tank 17 is just 100; the liquid level on the urea tank 17 corresponding to the sight tube 11 is marked as full scale line B.
In some embodiments, the method of calibrating the level detection of a urea tank further comprises: the distance between the zero position graduation mark A and the full position graduation mark B is measured, a graduation scale comprising 0-100 graduations is manufactured according to the distance, and the liquid level scale 16 is arranged on the side wall of the urea tank 17 in a manner of corresponding to the zero position graduation mark A and the full position graduation mark B according to the 0 graduation. The graduated scale may be made of metal or nonmetal, and in this embodiment, a nonmetallic material with a back adhesive is adhered to the side wall of the urea tank 17, but the utility model is not limited thereto.
In some embodiments, the method of calibrating the level detection of a urea tank further comprises: opening the valve 10 again, evacuating the urea tank 17 of liquid, and then closing the valve 10; unscrewing the cap of the filling port 1701 of the urea tank 17 again, filling the urea liquid level to the zero scale mark A, and simultaneously recording the actual reading a (not shown) of the liquid level sensor on the communication software; the urea is evenly divided into a plurality of sections from the zero position scale mark A to the full position scale mark B, and the numerical value of the scale and the actual numerical value of the liquid level sensor are recorded at the same time; and comparing the measured values of the two groups of graduated scales with the actual values of the liquid level sensor, and calculating the measurement error of the liquid level sensor according to the values of the graduated scales, so that the effect of measuring and calibrating the liquid level sensor can be achieved.
In summary, the liquid level detection calibration device and method for the urea tank have the following advantages: the scheme skillfully utilizes the liquid outlet of the urea tank, forms a physical communicating vessel structure with the urea tank together with a Q-type connecting pipe, an oil passing bolt, a quick connector, a connecting pipe, a three-way connector, an observation pipe, an elbow, a vent pipe, a liquid level scale and the like, and can intuitively display the liquid level condition of the urea tank; meanwhile, the liquid level error of the liquid level sensor of the urea tank can be simply, effectively and quickly detected and calibrated by the liquid level detection and calibration device and the liquid level detection and calibration method; the urea tank provided with the liquid level detection and calibration device of the scheme can intuitively display the liquid level condition of the urea tank through physical observation, can also display the liquid level condition of the urea tank through the liquid level display through electronics, does not need to damage the structure of the urea tank, has simple structure, can adopt common parts almost locally, has low manufacturing cost, is simple and effective in using method, has the advantage of multiple purposes, and can be widely popularized.
The foregoing descriptions of specific exemplary embodiments of the present utility model are presented for purposes of illustration and description. It is not intended to limit the utility model to the precise form disclosed, and obviously many modifications and variations are possible in light of the above teaching. The exemplary embodiments were chosen and described in order to explain the specific principles of the utility model and its practical application to thereby enable one skilled in the art to make and utilize the utility model in various exemplary embodiments and with various modifications as are suited to the particular use contemplated. It is intended that the scope of the utility model be defined by the claims and their equivalents.
Claims (6)
1. A liquid level detection calibration device for a urea tank, comprising:
one end of the Q-type connecting pipe is connected with a liquid outlet at the bottom of the urea tank in a sealing way;
the oil passing bolt passes through one end of the Q-shaped connecting pipe and then is screwed into a liquid discharge screw hole at the bottom of the urea tank;
one end of the first quick connector is connected with the other end of the Q-type connecting pipe in a sealing way;
one end of the first connecting pipe is connected with the other end of the first quick connector in a sealing way;
the liquid inlet of the three-way joint is connected with the other end of the first connecting pipe in a sealing way;
the observation tube is closely attached to the outer side wall of the urea tank, and the lower end of the observation tube is communicated with the first liquid outlet of the three-way joint in a sealing way;
one end of the elbow is communicated with the upper end of the observation tube in a sealing way;
the vent pipe is arranged above the top wall of the urea tank, one end of the vent pipe is communicated with the other end of the elbow in a sealing way, and the other end of the vent pipe is communicated with the atmosphere;
a one-way ventilation valve arranged at the other end of the ventilation pipe; and
the liquid level scale is arranged on the outer side wall of the urea tank and is tightly attached to the observation tube, a zero position scale mark is arranged at the lower end of the liquid level scale, and a full position scale mark is arranged at the upper end of the liquid level scale.
2. The urea tank level detection and calibration device of claim 1, further comprising:
the oil-passing bolt firstly passes through the first sealing gasket, passes through one end of the Q-type connecting pipe, passes through the second sealing gasket and is finally screwed in a liquid discharge screw hole at the bottom of the urea tank;
one end of the second connecting pipe is communicated with a second liquid outlet of the three-way joint in a sealing way;
one end of the second quick connector is communicated with the other end of the second connecting pipe in a sealing way; and
and the liquid inlet of the valve is communicated with the other end of the second quick connector in a sealing way.
3. The urea tank level detection calibration device of claim 2, wherein the first adapter tube is the same length as the second adapter tube.
4. The urea tank level detection calibration device of claim 2, wherein the first adapter tube and the second adapter tube are different in length.
5. The device for calibrating the liquid level detection of a urea tank according to claim 1, further comprising a first pipe fixing seat and a second pipe fixing seat, wherein the first pipe fixing seat and the second pipe fixing seat are arranged on the outer side wall of the urea tank, the upper part of the observation pipe is buckled on the first pipe fixing seat, and the lower part of the observation pipe is buckled on the second pipe fixing seat.
6. The urea tank level detection calibration device of claim 1, wherein the bend angle of the elbow is not less than 90 °.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321044643.7U CN219795362U (en) | 2023-05-05 | 2023-05-05 | Liquid level detection and calibration device of urea tank |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321044643.7U CN219795362U (en) | 2023-05-05 | 2023-05-05 | Liquid level detection and calibration device of urea tank |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN219795362U true CN219795362U (en) | 2023-10-03 |
Family
ID=88151733
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202321044643.7U Active CN219795362U (en) | 2023-05-05 | 2023-05-05 | Liquid level detection and calibration device of urea tank |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN219795362U (en) |
-
2023
- 2023-05-05 CN CN202321044643.7U patent/CN219795362U/en active Active
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN203672420U (en) | Flow meter | |
| US5316057A (en) | Vapor recovery system tester | |
| CN204165699U (en) | A kind of pressure sensor calibrating apparatus | |
| EP3954974B1 (en) | Gas flowmeter having inline calibrating | |
| EP1970675A3 (en) | Electromagnetic flowmeter and zero point measurement method thereof | |
| CN105091956A (en) | Engine air intake flow measuring device and engine system | |
| CN219795362U (en) | Liquid level detection and calibration device of urea tank | |
| CN111928910A (en) | Integral type bidirectional measurement return bend flowmeter | |
| US20070261477A1 (en) | Apparatus for Detecting Leakage of Liquid in Tank | |
| CN116771476A (en) | Liquid level detection and calibration device and method for urea tank | |
| CN109738665B (en) | Pitot tube-based flow velocity automatic measurement method | |
| CN207147598U (en) | A kind of device of bubbling liquid-level meter calibration instrument zero point | |
| CN102997969A (en) | Fuel consumption rate measuring system | |
| JP2019506608A (en) | Real-time fluid type mass flow meter | |
| CN213239054U (en) | Orifice plate | |
| CN109373201A (en) | Integral intelligent pipeline | |
| BR112019022524A2 (en) | DEPTH PRECISION SENSOR | |
| CN211668585U (en) | Ultrasonic water meter capable of realizing zero dynamic real-time calibration | |
| CN210347019U (en) | Test system for detecting and metering calibration of fuel evaporation detection and diagnosis equipment | |
| CN107702754B (en) | Portable simple flowmeter | |
| CN112179459A (en) | Water meter load detection device for simulating water meter use environment | |
| CN201897489U (en) | Mass flowmeter for integrated V-shaped cone | |
| CN204963898U (en) | Multi -parameter density liquid level meter | |
| CN220752062U (en) | Hydrogen sensor test system | |
| CN217179720U (en) | Flowmeter calibration device |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |