CN211819586U - Auxiliary device for improving detection precision of urea quality sensor - Google Patents
Auxiliary device for improving detection precision of urea quality sensor Download PDFInfo
- Publication number
- CN211819586U CN211819586U CN201922336150.0U CN201922336150U CN211819586U CN 211819586 U CN211819586 U CN 211819586U CN 201922336150 U CN201922336150 U CN 201922336150U CN 211819586 U CN211819586 U CN 211819586U
- Authority
- CN
- China
- Prior art keywords
- urea
- quality sensor
- heater
- urea quality
- controller
- 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
Images
Classifications
-
- 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
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T10/00—Road transport of goods or passengers
- Y02T10/10—Internal combustion engine [ICE] based vehicles
- Y02T10/40—Engine management systems
Abstract
The utility model discloses an auxiliary device for promoting urea quality sensor detects precision, including setting up the heater at the urea incasement, and the heater is located urea quality sensor's measurement area territory for solution to the urea incasement heats so that measurement area's bubble is appeared. In the practical application process, before the urea quality sensor detects the concentration of the urea solution, the heater is started firstly, the solution in the urea box is heated through the heater, and along with the rise of the temperature, the urea solution, particularly the bubbles in a detection area, can be promoted to be separated out, so that the measurement accuracy of the urea quality sensor is ensured.
Description
Technical Field
The utility model relates to a urea quality detects technical field, especially relates to an auxiliary device for promoting urea quality sensor and detect precision.
Background
Emission regulations are tightened, and the quality of urea in the market is uneven, so that the application of urea quality sensors is increased. If the urea in the urea box is kept still for a long time or kept at low temperature for a long time, bubbles can appear when the engine is started, and particularly in a detection area provided with a urea quality sensor, the appearance of the bubbles can cause the measurement precision of ultrasonic waves to be poor, and the urea quality measurement value jumps.
In summary, how to solve the problem of poor measurement accuracy of the urea quality sensor has become a technical problem that needs to be solved urgently by those skilled in the art.
SUMMERY OF THE UTILITY MODEL
The utility model aims at providing an auxiliary device for promoting urea quality sensor detection precision to solve the poor problem of urea quality sensor's measurement accuracy.
In order to achieve the above object, the utility model provides an auxiliary device for promoting urea quality sensor detection precision, including setting up the heater in the urea case, just the heater is located urea quality sensor's measurement area, is used for right solution in the urea case heats so that measurement area's bubble is appeared.
Preferably, the heating device further comprises a first controller for controlling the heater to start and stop and a temperature sensor arranged below the liquid level in the urea box, and when the temperature detected by the temperature sensor is lower than a first preset temperature, the first controller controls the heater to start heating; when the temperature detected by the temperature sensor reaches a second preset temperature, the first controller controls the heater to stop heating.
Preferably, the number of the heaters is plural and is uniformly arranged in the measurement region.
Preferably, the measurement zone is further provided with a shield with a vent mesh, the heater being located within the shield.
Preferably, the protective cover is made of a heat insulating material.
Preferably, the device comprises a pressure sensor arranged below the solution in the urea box and a pressure adjusting device used for adjusting the pressure in the urea box; the pressure adjusting device comprises an air inlet and an air outlet, wherein the air inlet and the air outlet are arranged above the urea box, the air inlet is communicated with the pressure air tank through a first pipeline, the air outlet is communicated with the atmosphere through a second pipeline, a first control valve is arranged on the first pipeline, and a second control valve is arranged on the second pipeline.
Preferably, the pressure sensor further comprises a second controller, the first control valve and the second control valve are both solenoid valves, and the second controller is in signal connection with the pressure sensor, the first control valve and the second control valve respectively.
Preferably, when the first controller is connected to the heater, the first controller and the second controller are integrated into one overall controller.
Preferably, the urea quality sensor further comprises an ultrasonic device arranged on the side face of the urea box, wherein the ultrasonic device comprises a first ultrasonic generation circuit, a second ultrasonic generation circuit and an ultrasonic transducer, the first ultrasonic generation circuit is used for controlling a transmitter of the urea quality sensor to transmit detection ultrasonic waves to a reflector of the urea quality sensor, and the second ultrasonic generation circuit is used for controlling the ultrasonic transducer to generate ultrasonic mechanical oscillation to a measurement area of the urea quality sensor.
Preferably, the frequency range of the ultrasonic transducer is 20KHz-40 KHz.
Compared with the introduction content of the background technology, the auxiliary device for improving the detection accuracy of the urea quality sensor comprises a heater arranged in the urea box, wherein the heater is located in the measurement area of the urea quality sensor and is used for heating the solution in the urea box so as to separate out bubbles in the measurement area. In the practical application process, before the urea quality sensor detects the concentration of the urea solution, the heater is started firstly, the solution in the urea box is heated through the heater, and along with the rise of the temperature, the urea solution, particularly the bubbles in a detection area, can be promoted to be separated out, so that the measurement accuracy of the urea quality sensor is ensured.
Drawings
FIG. 1 is a schematic structural diagram of a heater and a temperature sensor arranged in a urea tank according to an embodiment of the present invention;
FIG. 2 is a schematic structural diagram of a urea tank provided with a pressure regulating device and a heater at the same time according to an embodiment of the present invention;
fig. 3 is a schematic structural diagram of the urea tank provided by the embodiment of the present invention, in which a pressure regulating device, a heater and an ultrasonic device are arranged at the same time and a master controller is provided.
In the above figures 1-3 of the drawings,
the device comprises a urea box 1, a heater 2, a first controller 3, a temperature sensor 4, a pressure sensor 5, a first pipeline 6, a pressure air tank 7, a second pipeline 8, a first control valve 9, a second control valve 10, a second controller 11, an ultrasonic transducer 12, a transmitter 13, a reflector 14 and a master controller 15.
Detailed Description
The core of the utility model is to provide an auxiliary device for promoting urea quality sensor detection precision to solve the poor problem of urea quality sensor's measurement accuracy.
In order to make those skilled in the art better understand the technical solutions provided by the present invention, the present invention will be further described in detail with reference to the accompanying drawings and specific embodiments.
As shown in fig. 1-3, an embodiment of the utility model provides an auxiliary device for promoting urea quality sensor detection accuracy, including setting up heater 2 in urea case 1, and heater 2 is located urea quality sensor's measurement area for solution in urea case 1 heats so that measurement area's bubble is appeared.
In the practical application process, before the urea quality sensor detects the concentration of the urea solution, the heater is started firstly, the solution in the urea box is heated through the heater, and along with the rise of the temperature, the urea solution, particularly the bubbles in a detection area, can be promoted to be separated out, so that the measurement accuracy of the urea quality sensor is ensured. In addition, the heating is not influenced by the interference of other existing structures in the urea box or external conditions, and the urea box can be heated at any time when needed, so that the working efficiency is improved.
In some specific embodiments, the auxiliary device further comprises a first controller 3 for controlling the heater 2 to start and stop, and a temperature sensor 4 disposed below the liquid level in the urea tank 1, and when the temperature detected by the temperature sensor 4 is lower than a first preset temperature, the first controller 3 controls the heater 2 to start heating; when the temperature detected by the temperature sensor 4 reaches a second preset temperature, the first controller 3 controls the heater 2 to stop heating. Can realize the intelligent control to the heater through above-mentioned first controller, realize the effect of intelligence degasification, more effectual urea quality sensor's measurement accuracy of having guaranteed. It should be noted that the manner of controlling the start and stop of the heater by the controller may be realized by arranging a corresponding temperature switch on the control circuit, or realized by other control manners commonly used by those skilled in the art, and is not limited specifically herein.
In a further embodiment, the number of the heaters 2 may be selected to be plural and arranged uniformly in the measurement area in order to secure the power of the heaters and the uniformity of heating. It will of course be appreciated that it is also possible to provide only one heater, in the case where one heater is sufficient.
In some more specific embodiments, in order to guarantee the accuracy of the measurement of the urea quality sensor, a protective cover with a ventilation mesh is also provided in the measurement area, the heater being located inside the protective cover. Through the setting of protection casing, can avoid impurity to get into in the measurement area and lead wire should be can urea quality sensor's normal measurement work on the one hand, on the other hand, through setting up the protection casing, can also avoid newly increasing the bubble to a certain extent.
In a further embodiment, the protective cover can be made of a heat-insulating material. Through setting to insulation material's protection casing for heater heating efficiency in the protection casing is higher, keeps the temperature more lasting, has reduced the power loss of heater to a certain extent.
In some more specific embodiments, the above-mentioned auxiliary means further comprise a pressure sensor 5 disposed below the solution of the urea tank 1 and pressure regulating means for regulating the pressure inside the urea tank 1; the pressure adjusting device comprises an air inlet and an air outlet which are arranged above the urea box 1, the air inlet is communicated with a pressure air tank 7 through a first pipeline 6, the air outlet is communicated with the atmosphere through a second pipeline 8, a first control valve 9 is arranged on the first pipeline 6, and a second control valve 10 is arranged on the second pipeline 8. In the practical application process, before the urea quality sensor detects the concentration of the urea solution, the first control valve is opened, the second control valve is closed, and the pressure gas tank is used for pressurizing the liquid level of the urea tank, so that bubbles in the urea solution are separated out, and the measurement precision of the urea quality sensor can be ensured; when the urea box needs to be exhausted, the pressure relief in the urea box can be realized only by closing the first control valve and opening the second control valve. In addition, the pressurization is not influenced by the interference of other existing structures or external conditions in the urea box, and the urea box can be pressurized at any time when needed, so that the working efficiency is improved.
In some specific embodiments, in order to realize automation control and intellectualization of the lifting auxiliary device, the lifting auxiliary device further comprises a second controller 11, the first control valve 9 and the second control valve 10 are both solenoid valves, and the second controller 11 is in signal connection with the pressure sensor 5, the first control valve 9 and the second control valve 10 respectively. The second controller 11 controls the opening and closing of the first control valve and the second control valve based on the pressure information detected by the pressure sensor 5. The specific working process is as follows: the compressed air in the pressure air tank is introduced above the solution in the urea tank through a pipeline and an electromagnetic valve, a pressure sensor is additionally arranged at the bottom of the urea tank, when the engine is powered on, the second controller controls the air inlet electromagnetic valve to be opened, the air outlet electromagnetic valve is closed, the compressed air in the pressure air tank flows out to the upper side of the solution in the urea tank to be pressurized, and when the pressure sensor detects that the pressure of the urea solution reaches a set value, the compressed air is stopped to be introduced for pressurization. Through the pressurizing process on the upper surface of the urea solution, the separation of bubbles in the solution, particularly in the ultrasonic detection area, is promoted, and the measurement accuracy of the urea quality sensor is ensured. If the urea tank needs to be exhausted, the exhaust solenoid valve can be opened by the second controller.
It should be noted here that when the first controller 3 for controlling the start and stop of the heater is connected to the heater 2, the first controller 3 and the second controller 11 are preferably integrated into a total controller 15. The control is made more convenient by a centralized control by a general controller 15. It is understood that, in practical applications, the first controller and the second controller may be configured as two independent controllers.
In a further embodiment, the auxiliary device further comprises an ultrasonic device disposed on a side surface of the urea tank 1, the ultrasonic device comprises a first ultrasonic generating circuit, a second ultrasonic generating circuit and an ultrasonic transducer 12, the first ultrasonic generating circuit is used for controlling a transmitter 13 of the urea quality sensor to transmit detection ultrasonic waves to a reflector 14 of the urea quality sensor, and the second ultrasonic generating circuit is used for controlling the ultrasonic transducer 12 to generate ultrasonic mechanical oscillation to a measurement area of the urea quality sensor. In the actual use process of the ultrasonic device, when the quality of the urea solution in the urea box needs to be detected, the second ultrasonic generating circuit is controlled firstly, ultrasonic waves are sent to a measuring area of the urea quality sensor, electronic high-frequency oscillation generated by the second ultrasonic generating circuit is utilized, an ultrasonic transducer is converted into ultrasonic mechanical oscillation, and bubbles in the measuring area are removed and precipitated; and then starting the first ultrasonic wave generating circuit, transmitting detection ultrasonic waves to a reflector of the urea quality sensor through a transmitter of the urea quality sensor, and detecting the urea quality. In addition, the urea quality sensor and the bubble removing device are integrated through the double ultrasonic generating circuit, the occupied size is small, the bubble separation of the urea solution in a measuring area (also called as a detection area) is specifically promoted, and the measuring precision of the urea quality sensor is ensured. Through setting up ultrasonic device cooperation heater and getting rid of the bubble and pressure adjusting device gets rid of the bubble, realized triple mode of getting rid of the bubble for the bubble in the urea solution in the urea case is separated out more thoroughly, more favorable assurance urea quality sensor detects the precision.
It should be noted that the present invention preferably selects the frequency range of the ultrasonic transducer 12 from 20KHz to 40 KHz. Because the bubble removing effect of the ultrasonic wave of 20KHz in the urea solution is obvious, when the frequency is increased to 40KHz, the bubble removing efficiency is improved, but the energy consumption of frequency increase is also greatly improved.
It is right above the utility model provides an auxiliary device for promoting urea quality sensor and detect precision has carried out detailed introduction. It should be noted that, in the present specification, the embodiments are all described in a progressive manner, each embodiment focuses on differences from other embodiments, and the same and similar parts among the embodiments may be referred to each other.
It is also noted that, in this document, terms such as "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that an article or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such article or apparatus. Without further limitation, an element defined by the phrase "comprising an … …" does not exclude the presence of other like elements in an article or device that comprises the element.
The principles and embodiments of the present invention have been explained herein using specific examples, and the above descriptions of the embodiments are only used to help understand the core concepts of the present invention. It should be noted that, for those skilled in the art, without departing from the principle of the present invention, the present invention can be further modified and modified, and such modifications and modifications also fall within the protection scope of the appended claims.
Claims (10)
1. The auxiliary device for improving the detection accuracy of the urea quality sensor is characterized by comprising a heater (2) arranged in a urea box (1), wherein the heater (2) is positioned in a measurement area of the urea quality sensor and used for heating a solution in the urea box (1) so as to separate out bubbles in the measurement area.
2. The auxiliary device for improving the detection accuracy of the urea quality sensor is characterized by further comprising a first controller (3) for controlling the heater (2) to be started and stopped and a temperature sensor (4) arranged below the liquid level in the urea box (1), wherein when the temperature detected by the temperature sensor (4) is lower than a first preset temperature, the first controller (3) controls the heater (2) to be started for heating; when the temperature detected by the temperature sensor (4) reaches a second preset temperature, the first controller (3) controls the heater (2) to stop heating.
3. Auxiliary device for improving the detection accuracy of a urea quality sensor according to claim 1, characterized in that said heaters (2) are in number and are uniformly arranged in said measuring area.
4. The auxiliary device for improving the detection accuracy of the urea quality sensor as claimed in claim 1, wherein the measuring area is further provided with a shield with a vent mesh, and the heater is located in the shield.
5. The auxiliary device for improving the detection accuracy of the urea quality sensor as claimed in claim 4, wherein the protective cover is made of a heat insulating material.
6. The auxiliary device for improving the detection accuracy of the urea quality sensor according to claim 2, characterized by comprising a pressure sensor (5) arranged below the solution of the urea tank (1) and a pressure regulating device for regulating the pressure in the urea tank (1); the pressure adjusting device comprises an air inlet and an air outlet which are arranged above the urea box (1), the air inlet is communicated with a pressure air tank (7) through a first pipeline (6), the air outlet is communicated with the atmosphere through a second pipeline (8), a first control valve (9) is arranged on the first pipeline (6), and a second control valve (10) is arranged on the second pipeline (8).
7. Auxiliary device for improving the detection accuracy of a urea quality sensor according to claim 6, further comprising a second controller (11), wherein the first control valve (9) and the second control valve (10) are both solenoid valves, and the second controller (11) is in signal connection with the pressure sensor (5), the first control valve (9) and the second control valve (10), respectively.
8. The auxiliary device for improving the detection accuracy of the urea quality sensor according to claim 7, wherein when the first controller (3) is connected to the heater (2), the first controller (3) and the second controller (11) are integrated into a total controller (15).
9. Auxiliary device for improving the detection accuracy of a urea quality sensor according to claim 6, further comprising an ultrasonic device disposed at the side of the urea tank (1), wherein the ultrasonic device comprises a first ultrasonic generating circuit, a second ultrasonic generating circuit and an ultrasonic transducer (12), the first ultrasonic generating circuit is used for controlling the transmitter (13) of the urea quality sensor to transmit detection ultrasonic waves to the reflector (14) of the urea quality sensor, and the second ultrasonic generating circuit is used for controlling the ultrasonic transducer (12) to generate ultrasonic mechanical oscillation to the measurement area of the urea quality sensor.
10. Auxiliary device for improving the detection accuracy of a urea quality sensor according to claim 9, characterized in that the frequency range of the ultrasonic transducer (12) is 20KHz-40 KHz.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922336150.0U CN211819586U (en) | 2019-12-20 | 2019-12-20 | Auxiliary device for improving detection precision of urea quality sensor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922336150.0U CN211819586U (en) | 2019-12-20 | 2019-12-20 | Auxiliary device for improving detection precision of urea quality sensor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN211819586U true CN211819586U (en) | 2020-10-30 |
Family
ID=73032859
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201922336150.0U Active CN211819586U (en) | 2019-12-20 | 2019-12-20 | Auxiliary device for improving detection precision of urea quality sensor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN211819586U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2024041051A1 (en) * | 2022-08-24 | 2024-02-29 | 宁波楷世环保科技有限公司 | Sensor for measuring quality of urea solution, and method |
-
2019
- 2019-12-20 CN CN201922336150.0U patent/CN211819586U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2024041051A1 (en) * | 2022-08-24 | 2024-02-29 | 宁波楷世环保科技有限公司 | Sensor for measuring quality of urea solution, and method |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN211819586U (en) | Auxiliary device for improving detection precision of urea quality sensor | |
| CN104676816A (en) | Automatic humidifier | |
| CN106308476B (en) | It is a kind of with the food steam box for being rapidly heated and keeping temperature incubation function | |
| CN102626364A (en) | Intelligent medicament fumigation suit | |
| CN202074681U (en) | Electromagnetic heating boiler | |
| CN203555544U (en) | Electricity steam dual-purpose rice steaming cabinet | |
| CN205761192U (en) | A kind of special steam-cured still of efficient and long life regenerating anthraquinone degradation products catalyst | |
| CN211314337U (en) | Auxiliary device for improving detection precision of urea quality sensor | |
| CN207501235U (en) | A kind of household intelligent air heater | |
| CN202191891U (en) | Heating device for barreled solid material | |
| CN205368552U (en) | High -efficient ramie boiling device of intelligence integral type | |
| CN210154216U (en) | Drying cabinet | |
| CN106983362A (en) | A kind of electric heating kettle heating control system | |
| CN210666506U (en) | Temperature and humidity adjusting system for climate simulation laboratory | |
| CN210059302U (en) | Even kitchen garbage fermentation case heats | |
| CN202955856U (en) | Quick-heating thermostating electric water heater | |
| CN207872131U (en) | Resin reaction kettle with automatic recipe maker | |
| CN207299523U (en) | Efficient safe natural gas electric heater | |
| CN201652842U (en) | Double-effect solar energy heat pump water heater | |
| CN206890839U (en) | A kind of electromagnetic boiler | |
| CN202408588U (en) | Electric heating device for fermentation and heat preservation | |
| CN205425413U (en) | Water heater | |
| CN105764174A (en) | Electromagnetic heating control method, electromagnetic heating control system and electromagnetic heating device | |
| CN209297176U (en) | A kind of constant temperature thread electric heater of PLC control | |
| CN202605393U (en) | Blood purification temperature control and degassing system |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |