CN220795092U - Test device for measuring defrosting time and overheat prevention of SCR urea pipe - Google Patents
Test device for measuring defrosting time and overheat prevention of SCR urea pipe Download PDFInfo
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- CN220795092U CN220795092U CN202321421261.1U CN202321421261U CN220795092U CN 220795092 U CN220795092 U CN 220795092U CN 202321421261 U CN202321421261 U CN 202321421261U CN 220795092 U CN220795092 U CN 220795092U
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- defrosting time
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- XSQUKJJJFZCRTK-UHFFFAOYSA-N Urea Chemical compound NC(N)=O XSQUKJJJFZCRTK-UHFFFAOYSA-N 0.000 title claims abstract description 58
- 239000004202 carbamide Substances 0.000 title claims abstract description 58
- 238000010257 thawing Methods 0.000 title claims abstract description 33
- 238000012360 testing method Methods 0.000 title claims abstract description 30
- 230000002265 prevention Effects 0.000 title claims abstract description 13
- 230000007246 mechanism Effects 0.000 claims abstract description 12
- 230000008859 change Effects 0.000 abstract description 4
- 239000002699 waste material Substances 0.000 abstract description 4
- MWUXSHHQAYIFBG-UHFFFAOYSA-N nitrogen oxide Inorganic materials O=[N] MWUXSHHQAYIFBG-UHFFFAOYSA-N 0.000 description 9
- 230000000694 effects Effects 0.000 description 4
- 230000007613 environmental effect Effects 0.000 description 3
- 238000010438 heat treatment Methods 0.000 description 3
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 3
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 2
- 238000005485 electric heating Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000010531 catalytic reduction reaction Methods 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 239000000110 cooling liquid Substances 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000007789 gas Substances 0.000 description 1
- 230000008676 import Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 229910052757 nitrogen Inorganic materials 0.000 description 1
- 230000001105 regulatory effect Effects 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
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- Testing Resistance To Weather, Investigating Materials By Mechanical Methods (AREA)
Abstract
The utility model discloses a testing device for measuring defrosting time and overheat prevention of an SCR urea pipe, which comprises a constant temperature environment box, wherein a testing mechanism is arranged in the constant temperature environment box, and a temperature collector is arranged on the outer side of the constant temperature environment box; the utility model has simple structure and reasonable design, urea is injected into the SCR hose through the inlet connecting pipe, then the temperature of the constant-temperature environment box is set to forty ℃ below zero and lasts for half an hour to ensure that the urea in the SCR hose is frozen, then the inlet connecting pipe is connected with compressed air, a mobile power supply is started to defrost the SCR hose, and real-time temperature change is transmitted to the temperature collector through the temperature sensor, when obvious fluctuation occurs in the temperature in the beaker, the defrosting time is considered, whether the temperatures of the first quick connector and the second quick connector exceed the specified temperature is observed, the defrosting time of the SCR hose under different environment temperatures and different voltages can be measured through the test mechanism, and the waste of vehicle electric quantity caused by the early defrosting of the SCR hose is avoided.
Description
Technical Field
The utility model relates to the technical field of automobile hose test equipment, in particular to a test device for measuring defrosting time and overheat prevention of an SCR urea pipe.
Background
The economic development of China and the increase of the vehicle conservation amount are rapid, and new requirements are also put forward on environmental protection, and the commercial vehicle aftertreatment system mainly utilizes an SCR (selective catalytic reduction) system to generate nitrogen and water through the reaction of urea and nitrogen oxides in the tail gas, so that the emission of the nitrogen oxides is reduced. The physical characteristics of the urea solution with the standard concentration of 32.5 determine that the urea solution can freeze at the temperature of-11 ℃, and the urea in the urea pipe can not be dissolved in time after the engine is started at a lower ambient temperature, so that the urea solution can not be provided to play a role in reducing nitrogen oxides, and in actual operation, in order to ensure that the urea pipe can convey the urea in the urea box into the exhaust pipe at a low temperature, the urea pipe needs to be thawed and heated, and the urea can be ensured to circulate normally.
The prior art has the following defects:
when the vehicle runs in a low-temperature environment, if the temperature measured by the urea box temperature sensor is lower than a specified value, the engine electronic control unit sends a command to start the electromagnetic valve, the urea box is heated by using cooling liquid of the engine, urea solution in the urea box is thawed, and the exhaust aftertreatment system is ensured to work normally. The urea box is thawed in a water heating mode, so that the urea box is influenced by the water temperature of the engine, and the urea box is large in volume, so that the thawing time is long; the thawing and heating mode of the urea pipe is electric heating, so that the urea pipe is generally thawed faster than the urea tank. The defrosting of the urea pipe is based on the ambient temperature, the defrosting operation is started as long as the ambient temperature is lower than a specified value SCR system, the urea pipe enters a repeated heating-stopping-heating state after the defrosting is completed, and if the urea box is not defrosted at the moment, the electric heating energy waste is caused when the urea box is waited to defrost successfully, and the electric quantity at the time of cold start is consumed.
Disclosure of Invention
The utility model aims to provide a test device for measuring the defrosting time and overheat prevention of an SCR urea pipe so as to solve the problems in the background technology.
In order to achieve the above purpose, the present utility model provides the following technical solutions: the device for measuring the defrosting time and the overheat prevention of the SCR urea pipe comprises a constant temperature environment box, wherein a test mechanism is arranged in the constant temperature environment box, and a temperature collector is arranged on the outer side of the constant temperature environment box;
the testing mechanism comprises:
the fixing support is arranged in the constant temperature environment box, an SCR hose is connected to the fixing support through a fixing assembly, one end of the SCR hose is connected with an inlet connecting pipe through a first quick connector, and the other end of the SCR hose is connected with an outlet connecting pipe through a second quick connector;
the beaker is arranged at the outer side of the constant temperature environment box, and one end of the outlet connecting pipe, which is far away from the SCR hose, is connected with the beaker;
the temperature sensors are arranged on the surfaces of the coils in the first quick connector and the second quick connector and the inside of the beaker, and are connected with the temperature collector;
the portable power source, portable power source sets up in the outside of constant temperature environment case, portable power source is connected with the plug on the SCR hose.
Preferably, the fixing assembly comprises:
the fixing buckle is arranged on one side of the fixing bracket;
the movable buckle, movable buckle and fixed bolster sliding connection, the SCR hose sets up between fixed buckle and movable buckle, one side of movable buckle is connected with the fixed bolster through setting up the bolt.
Preferably, the constant temperature environmental chamber may provide an environmental temperature of zero to minus fifty degrees celsius and be maintained at a constant temperature.
Preferably, one end of the inlet connecting pipe far away from the SCR hose is arranged on the outer side of the constant temperature environment box and slightly tilted.
Preferably, scale marks are arranged on the outer side of the beaker.
Preferably, the number of the fixing brackets is at least two, and the heights of the fixing components on the fixing brackets are kept consistent.
Preferably, the temperature collector is used for collecting and recording data transmitted by the temperature sensor.
Compared with the prior art, the utility model has the beneficial effects that:
1. the test mechanism comprises a fixed support, a beaker, a temperature sensor and a mobile power supply, urea is injected into an SCR hose through an inlet connecting pipe until the fact that urea flows out of an outlet connecting pipe is observed in the beaker, then the temperature of a constant-temperature environment box is set to minus forty ℃ and is kept for half an hour at the temperature to ensure that the urea in the SCR hose freezes, then the inlet connecting pipe is connected with compressed air and the pressure of 0.1Mpa is started, then the mobile power supply is started to start defrosting of the SCR hose, real-time temperature change is transmitted to a temperature collector through the temperature sensor, when obvious fluctuation occurs in the temperature in the beaker, the temperature sensor is regarded as defrosting time and recorded, at the moment, the temperature of the temperature sensor on a first quick connector and a second quick connector is observed to see whether the temperature exceeds the specified temperature, the temperature of the SCR hose at different environment temperatures and the different voltages can be measured through the test mechanism, and the waste of vehicle electric quantity caused by the fact that the SCR hose thaws in advance is avoided;
2. this measure SCR urea pipe defrosting time and prevent overheated testing arrangement, through being provided with fixed subassembly, fixed subassembly is including fixed buckle and activity buckle, at first arranges the SCR hose on fixed buckle, and then the activity buckle of sliding downwards is fixed the SCR hose between fixed buckle and activity buckle, twists the bolt and fixes the activity buckle, is convenient for fix the SCR hose and keep parallel with ground as far as possible through fixed subassembly, avoids urea to reveal.
Drawings
FIG. 1 is an overall block diagram of the present utility model;
FIG. 2 is a side view of a mounting bracket of the present utility model;
FIG. 3 is an enlarged schematic view of FIG. 1A according to the present utility model;
fig. 4 is an enlarged schematic view of fig. 1 at B in accordance with the present utility model.
In the figure: 1. a constant temperature environment box; 11. a temperature collector; 2. a testing mechanism; 21. a fixed bracket; 211. an SCR hose; 212. the first quick connector; 213. an inlet connection tube; 214. the second quick connector; 215. an outlet connection tube; 22. a beaker; 23. a temperature sensor; 24. a mobile power supply; 3. a fixing assembly; 31. a fixing buckle; 32. a movable buckle; 321. and (5) a bolt.
Detailed Description
The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments. 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.
In the description of the present utility model, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, are merely for convenience in describing the present utility model and simplifying the description, and do not indicate or imply that the apparatus or elements referred to must have a specific orientation, be configured and operated in a specific orientation, and thus should not be construed as limiting the present utility model.
In the description of this patent, it should be noted that, unless explicitly stated and limited otherwise, the terms "mounted," "connected," and "disposed" are to be construed broadly, and may be fixedly connected, disposed, or detachably connected, disposed, or integrally connected, disposed, for example. The specific meaning of the terms in this patent will be understood by those of ordinary skill in the art as the case may be.
Furthermore, the terms "first," "second," and the like, are used for descriptive purposes only and are not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include one or more such feature. In the description of the present utility model, the meaning of "a number" is two or more, unless explicitly defined otherwise.
Referring to fig. 1-4, the utility model provides a technical scheme for measuring defrosting time and overheat preventing test device of SCR urea pipe: the utility model provides a measure SCR urea pipe defrosting time and prevent overheated testing arrangement, including constant temperature environment case 1, constant temperature environment case 1's inside is provided with testing mechanism 2, constant temperature environment case 1's outside is provided with temperature collector 11, testing mechanism 2 is including fixed bolster 21, beaker 22, temperature sensor 23 and portable power source 24, the welding of fixed bolster 21 is in constant temperature environment case 1's inside, be connected with SCR hose 211 through installation fixed subassembly 3 on the fixed bolster 21, SCR hose 211's one end is installed import connecting pipe 213 through connecting first quick-connect fitting 212, the other end is installed export connecting pipe 215 through connecting second quick-connect fitting 214, beaker 22 is placed in constant temperature environment case 1's outside, the one end that export connecting pipe 215 kept away from SCR hose 211 is connected with 22, temperature sensor 23 installs in first quick-connect fitting 212 and second quick-connect fitting 214 inner coil surface and the inside of beaker 22, the temperature sensor 23 is connected with the temperature collector 11, the mobile power supply 24 is arranged on the outer side of the constant temperature environment box 1, the mobile power supply 24 is connected with a plug on the SCR hose 211, firstly urea is injected into the SCR hose 211 through the inlet connecting pipe 213 until the urea in the beaker 22 is observed to flow out of the outlet connecting pipe 215, then the temperature of the constant temperature environment box 1 is set at forty ℃ below zero, the urea in the SCR hose 211 is ensured to freeze for half an hour at the temperature, then the inlet connecting pipe 213 is connected with compressed air and the pressure of 0.1Mpa is started, then the mobile power supply 24 starts thawing of the SCR hose 211, and the real-time temperature change is transmitted to the temperature collector 11 through the temperature sensor 23, and the thawing time is regarded as and recorded when the temperature in the beaker 22 obviously fluctuates, at this time, whether the temperature of the temperature sensor 23 on the first quick connector 212 and the second quick connector 214 exceeds a specified temperature is observed, and the test mechanism 2 can simulate the defrosting time of the SCR hose 211 at different temperatures and different voltages according to the working environment of the vehicle, so that the waste of vehicle electric quantity due to the early defrosting of the SCR hose 211 is avoided.
The fixed subassembly 3 is including fixed buckle 31 and movable buckle 32, fixed buckle 31 welds in one side of fixed bolster 21, movable buckle 32 and fixed bolster 21 sliding connection, SCR hose 211 is placed between fixed buckle 31 and movable buckle 32, one side of movable buckle 32 has bolt 321 to be connected with fixed bolster 21 through threaded connection, at first place SCR hose 211 on fixed buckle 31, then the movable buckle 32 of downwardly sliding is to fix SCR hose 211 between fixed buckle 31 and movable buckle 32, it is fixed with movable buckle 32 to twist bolt 321, be convenient for fix the SCR hose 211 and keep parallel with ground as far as possible through fixed subassembly 3, avoid urea to reveal.
The constant temperature environment box 1 can provide an environment temperature of zero to minus fifty ℃ and can be kept at a constant temperature, so that different temperatures can be conveniently simulated according to the environment in which the vehicle works.
The end of the inlet connection pipe 213 remote from the SCR hose 211 is provided outside the constant temperature environment tank 1 and tilted slightly so as to be connected to a compressed air pipe after urea is injected into the inlet connection pipe 213.
Graduation marks are carved on the outer side of the beaker 22, so that the usage amount of urea can be conveniently observed and counted.
The number of the fixing brackets 21 is at least two, and the height of the fixing assembly 3 on the fixing brackets 21 is kept consistent, so that the SCR hose 211 is fixed at a position horizontal to the ground as much as possible.
The temperature collector 11 is used to collect and record data transmitted by the temperature sensor 23, facilitating the recording of the thawing time and the observation of whether the temperature exceeds a prescribed level.
The working principle of the utility model is as follows:
when the test device for measuring the defrosting time and overheat prevention of the SCR urea pipe is used, firstly, the SCR hose 211 is placed on the fixed buckle 31, then the movable buckle 32 is slid downwards until the SCR hose 211 is fixed between the fixed buckle 31 and the movable buckle 32, the movable buckle 32 is fixed by the screwing bolt 321, the SCR hose 211 is conveniently fixed through the fixed assembly 3 and kept parallel to the ground as much as possible, urea leakage is avoided, then urea is injected into the SCR hose 211 through the inlet connecting pipe 213 until urea in the beaker 22 is observed to flow out of the outlet connecting pipe 215, then the temperature of the constant temperature environment box 1 is set to forty degrees centigrade below zero, the pressure of 0.1Mpa is started after the temperature is continuously kept for half an hour, then the inlet connecting pipe 213 is connected with the urea in the SCR hose 211, then the movable power supply 24 is started to defrost the hose 211, and the real-time temperature change is transmitted to the temperature collector 11 through the temperature sensor 23, when the temperature in the beaker 22 obviously fluctuates, the defrosting time is regarded as well recorded, at this time, the temperature of the first quick plug 212 and the second quick plug 214 is observed until the temperature sensor 23 is observed, whether the temperature of the temperature in the beaker 22 exceeds the temperature of the temperature collector is regulated by the SCR hose 211, the same time, the temperature of the vehicle can not be defrosted according to the test device, and the temperature of the SCR vehicle is not wasted according to the SCR temperature can be avoided, and the current is avoided, and the vehicle is not wasted by the temperature is measured, and the vehicle is not required by the temperature, and the temperature is not thawed by the temperature, and the temperature is allowed.
The foregoing has shown and described the basic principles, principal features and advantages of the utility model. It will be understood by those skilled in the art that the present utility model is not limited to the above-described embodiments, and that the above-described embodiments and descriptions are only preferred embodiments of the present utility model, and are not intended to limit the utility model, and that various changes and modifications may be made therein without departing from the spirit and scope of the utility model as claimed. The scope of the utility model is defined by the appended claims and equivalents thereof.
Claims (7)
1. The utility model provides a measure SCR urea pipe defrosting time and prevent overheated testing arrangement, includes constant temperature environment case (1), its characterized in that: a testing mechanism (2) is arranged in the constant temperature environment box (1), and a temperature collector (11) is arranged on the outer side of the constant temperature environment box (1);
the test mechanism (2) comprises:
the fixing support (21), the fixing support (21) is arranged in the constant temperature environment box (1), the fixing support (21) is connected with an SCR hose (211) through a fixing component (3), one end of the SCR hose (211) is connected with an inlet connecting pipe (213) through a first quick connector (212), and the other end of the SCR hose is connected with an outlet connecting pipe (215) through a second quick connector (214);
the beaker (22) is arranged at the outer side of the constant temperature environment box (1), and one end of the outlet connecting pipe (215) away from the SCR hose (211) is connected with the beaker (22);
the temperature sensor (23) is arranged on the surfaces of the coils in the first quick connector (212) and the second quick connector (214) and inside the beaker (22), and the temperature sensor (23) is connected with the temperature collector (11);
the mobile power supply (24) is arranged on the outer side of the constant temperature environment box (1), and the mobile power supply (24) is connected with a plug on the SCR hose (211).
2. The test device for measuring defrosting time and overheat prevention of an SCR urea pipe according to claim 1, wherein: the fixing component (3) comprises:
the fixing buckle (31) is arranged on one side of the fixing bracket (21);
the movable buckle (32), movable buckle (32) and fixed bolster (21) sliding connection, SCR hose (211) set up between fixed buckle (31) and movable buckle (32), one side of movable buckle (32) is connected with fixed bolster (21) through setting up bolt (321).
3. The test device for measuring defrosting time and overheat prevention of an SCR urea pipe according to claim 1, wherein: the constant temperature environment box (1) can provide an environment temperature of zero to minus fifty ℃ and is kept at a constant temperature.
4. The test device for measuring defrosting time and overheat prevention of an SCR urea pipe according to claim 1, wherein: one end of the inlet connecting pipe (213) far away from the SCR hose (211) is arranged on the outer side of the constant temperature environment box (1) and slightly tilted.
5. The test device for measuring defrosting time and overheat prevention of an SCR urea pipe according to claim 1, wherein: scale marks are arranged on the outer side of the beaker (22).
6. The test device for measuring defrosting time and overheat prevention of an SCR urea pipe according to claim 1, wherein: the number of the fixing brackets (21) is at least two, and the heights of the fixing components (3) on the fixing brackets (21) are kept consistent.
7. The test device for measuring defrosting time and overheat prevention of an SCR urea pipe according to claim 1, wherein: the temperature collector (11) is used for collecting and recording data transmitted by the temperature sensor (23).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321421261.1U CN220795092U (en) | 2023-06-06 | 2023-06-06 | Test device for measuring defrosting time and overheat prevention of SCR urea pipe |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321421261.1U CN220795092U (en) | 2023-06-06 | 2023-06-06 | Test device for measuring defrosting time and overheat prevention of SCR urea pipe |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220795092U true CN220795092U (en) | 2024-04-16 |
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ID=90662959
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202321421261.1U Active CN220795092U (en) | 2023-06-06 | 2023-06-06 | Test device for measuring defrosting time and overheat prevention of SCR urea pipe |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220795092U (en) |
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2023
- 2023-06-06 CN CN202321421261.1U patent/CN220795092U/en active Active
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