CN220091457U - Liquid constant temperature test device - Google Patents
Liquid constant temperature test device Download PDFInfo
- Publication number
- CN220091457U CN220091457U CN202321685311.7U CN202321685311U CN220091457U CN 220091457 U CN220091457 U CN 220091457U CN 202321685311 U CN202321685311 U CN 202321685311U CN 220091457 U CN220091457 U CN 220091457U
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- Prior art keywords
- liquid
- constant temperature
- accommodating space
- temperature test
- heat exchange
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- 239000007788 liquid Substances 0.000 title claims abstract description 93
- 238000012360 testing method Methods 0.000 title claims abstract description 55
- 238000010438 heat treatment Methods 0.000 claims abstract description 33
- 238000001816 cooling Methods 0.000 claims abstract description 20
- 238000004321 preservation Methods 0.000 claims description 3
- XSQUKJJJFZCRTK-UHFFFAOYSA-N Urea Chemical compound NC(N)=O XSQUKJJJFZCRTK-UHFFFAOYSA-N 0.000 abstract description 28
- 239000004202 carbamide Substances 0.000 abstract description 28
- 238000010257 thawing Methods 0.000 abstract description 3
- 238000007710 freezing Methods 0.000 abstract description 2
- 230000008014 freezing Effects 0.000 abstract description 2
- 238000012423 maintenance Methods 0.000 abstract description 2
- 230000004308 accommodation Effects 0.000 description 10
- 239000000463 material Substances 0.000 description 4
- 229910000831 Steel Inorganic materials 0.000 description 2
- 229910001069 Ti alloy Inorganic materials 0.000 description 2
- 239000000956 alloy Substances 0.000 description 2
- 238000005536 corrosion prevention Methods 0.000 description 2
- 238000009826 distribution Methods 0.000 description 2
- 239000010959 steel Substances 0.000 description 2
- 229910000619 316 stainless steel Inorganic materials 0.000 description 1
- UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 description 1
- 239000004809 Teflon Substances 0.000 description 1
- 229920006362 Teflon® Polymers 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 229910002091 carbon monoxide Inorganic materials 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 238000005253 cladding Methods 0.000 description 1
- 239000011248 coating agent Substances 0.000 description 1
- 238000000576 coating method Methods 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000001914 filtration Methods 0.000 description 1
- 238000011010 flushing procedure Methods 0.000 description 1
- 230000017525 heat dissipation Effects 0.000 description 1
- 239000012535 impurity Substances 0.000 description 1
- 238000009413 insulation Methods 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000002791 soaking Methods 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 238000007711 solidification Methods 0.000 description 1
- 230000008023 solidification Effects 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 238000004781 supercooling Methods 0.000 description 1
- 238000009827 uniform distribution Methods 0.000 description 1
Landscapes
- Testing Resistance To Weather, Investigating Materials By Mechanical Methods (AREA)
Abstract
The utility model provides a liquid type constant temperature test device, which comprises a box body, a heating device and a cooling device; the box body is internally provided with an accommodating space; the accommodating space is used for accommodating liquid; the feed inlet and the discharge outlet of the heating device are respectively communicated with the accommodating space through pipelines; the cooling device comprises a cooler and a heat exchange assembly; the heat exchange assembly is arranged in the accommodating space, and the feed inlet and the discharge outlet of the heat exchange assembly are respectively communicated with the cooler. The liquid type constant temperature test device is based on the cooperation of the heating device and the cooling device, so that the problem that the surface of the low temperature heat exchange component is frozen due to the need of long-time maintenance when the low temperature test is carried out is avoided, the concentration of a solution is further influenced, the concentration of urea solution with other solubility is influenced when the solution is tested after freezing and thawing if the solution is not cleaned in time, and the accuracy of the test is influenced.
Description
Technical Field
The utility model relates to the technical field of constant temperature test boxes, in particular to a liquid type constant temperature test device.
Background
The constant temperature test box is a branch test item of the environment test box, and aims to test the service life of a product under different environment temperatures, and the liquid constant temperature test box is used for simulating different environment temperatures and even extremely low temperature environments.
Many diesel vehicles are equipped with vehicle urea to perform emission filtration, so that carbon monoxide discharge capacity is reduced. In a urea system, a special liquid level sensor is arranged, the sensor is extremely easy to erode and damage due to long-term soaking in urea solution (the urea solution for a vehicle with the concentration of 32.5 percent), the urea sensor for the vehicle has very high requirement on the precision of temperature, and also has very high requirement on the change of medium concentration (the solidification of partial components in the urea solution at low temperature can influence the concentration of the urea solution so as to influence the accuracy of the test), so that the problem to be solved is to provide a testing device for the liquid level sensor for the urea solution.
Disclosure of Invention
In order to solve the problems existing in the background technology, the utility model provides a liquid type constant temperature test device, which comprises a box body, a heating device and a cooling device; the box body is internally provided with an accommodating space; the accommodating space is used for accommodating liquid; the feed inlet and the discharge outlet of the heating device are respectively communicated with the accommodating space through pipelines; the cooling device comprises a cooler and a heat exchange assembly; the heat exchange assembly is arranged in the accommodating space, and the feed inlet and the discharge outlet of the heat exchange assembly are respectively communicated with the cooler.
In the liquid type constant temperature test device, a liquid outlet is formed in the bottom surface of the accommodating space, and a liquid inlet is formed in the side surface of the accommodating space; the liquid outlet is communicated with a feed inlet of the heating device through a pipeline; the liquid inlet is communicated with the discharge port of the heating device through a pipeline.
In the liquid type constant temperature test device, the liquid inlet and the liquid outlet are respectively multiple in number.
In the liquid type constant temperature test device, the number of the liquid inlets is 2, and the number of the liquid outlets is 3 and is distributed along a straight line; the line of the liquid inlet and the line of the liquid outlet are arranged at an angle, and the angle is larger than 0 degrees.
In the liquid type constant temperature test device, the accommodating space is of a cuboid structure, and a connecting line of the liquid inlet and a connecting line of the liquid outlet are arranged along a diagonal line of the bottom surface of the cuboid.
In the liquid type constant temperature test device, the liquid inlet is higher than the top of the heat exchange assembly, and a screen plate is arranged between the liquid inlet and the top of the heat exchange assembly.
In the liquid type constant temperature test device, the heating device comprises a circulating pump and a heater; the feed inlet of the circulating pump is communicated with the accommodating space, and the discharge outlet of the circulating pump is communicated with the feed inlet of the heater; the discharge port of the heater is communicated with the accommodating space.
In the liquid type constant temperature test device, the box body is also provided with a bottom space; the bottom space is located below the accommodating space, and the heating device and the cooling device are installed in the bottom space.
In the liquid type constant temperature test device, the outer side of the accommodating space is wrapped with the heat preservation layer.
In the liquid type constant temperature test device, the bottom surface of the box body is provided with the roller.
In the liquid type constant temperature test device, the heat exchange component is a heat exchange coil.
The beneficial effects of the utility model are as follows: the liquid type constant temperature test device is based on the cooperation of the heating device and the cooling device, so that the problem that the surface of the low temperature heat exchange component is frozen due to the need of long-time maintenance when the low temperature test is carried out is avoided, the concentration of a solution is further influenced, the concentration of urea solution with other solubility is influenced when the solution is tested after freezing and thawing if the solution is not cleaned in time, and the accuracy of the test is influenced.
Drawings
FIG. 1 is a schematic view showing the front view structure of a liquid type constant temperature test apparatus of the present utility model (showing the internal structure);
FIG. 2 is a schematic top view of the liquid type constant temperature test apparatus of the present utility model (showing the internal structure).
Legend: 1. a case; 11. an accommodation space; 111. a liquid outlet; 112. a liquid inlet; 12. a bottom space; 2. a heating device; 21. a circulation pump; 22. a heater; 3. a cooling device; 31. a cooler; 32. a heat exchange assembly; 4. a screen plate; 5. a heat preservation layer; 6. and a roller.
Detailed Description
For the purpose of making the objects, technical solutions and advantages of the embodiments of the present utility model more apparent, the technical solutions of the embodiments of the present utility model will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present utility model, and it is apparent that the described embodiments are some embodiments of the present utility model, but not all embodiments of the present utility model.
Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this utility model belongs; the terminology used in the description of the applications herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the utility model; the terms "comprising" and "having" and any variations thereof in the description of the utility model and the claims and the description of the drawings above are intended to cover a non-exclusive inclusion. The term "plurality" in the description of the utility model and the claims or in the above figures refers to more than two (including two).
Reference herein to "an embodiment" means that a particular feature, structure, or characteristic described in connection with the embodiment may be included in at least one embodiment of the utility model. The appearances of such phrases in various places in the specification are not necessarily all referring to the same embodiment, nor are separate or alternative embodiments mutually exclusive of other embodiments. Those of skill in the art will explicitly and implicitly appreciate that the embodiments described herein may be combined with other embodiments.
The liquid type constant temperature test apparatus of the present utility model will be described in detail with reference to the accompanying drawings.
As shown in fig. 1 and 2, a liquid type constant temperature test apparatus includes a case 1 (e.g., a square case or other shape case), a heating device 2, and a cooling device 3; the case 1 has an accommodation space 11 therein (specifically, the case 1 may be configured to be composed of a case body provided with an accommodation groove and a cover plate provided in the accommodation groove to form the accommodation space 11); the accommodation space 11 is for accommodating a liquid; the feed inlet and the discharge outlet of the heating device 2 are respectively communicated with the accommodating space 11 through pipelines; the cooling device 3 comprises a cooler 31 (such as model TFH 2480Z) and a heat exchange assembly 32; the heat exchange assembly 32 is arranged in the accommodating space 11, the area above the heat exchange assembly 32 is a test area, and the feed inlet and the discharge outlet of the heat exchange assembly 32 are respectively communicated with the cooler 31. The components in the liquid constant temperature test device which are contacted with the urea solution are subjected to corrosion prevention treatment, and particularly, the corrosion prevention treatment can be carried out according to the prior art, for example, the corrosion-resistant material of the urea solution is selected, so that the problem that the metal surface contacted with the urea solution generates bluing when the liquid constant temperature test device is used for a long time is avoided. Specifically, the material that encloses into accommodation space 11 is selected to be 316 stainless steel, and the pipeline that communicates heating device 2 and accommodation space 11 is selected to be 316 high pressure resistant seamless steel pipe, and heating device 2's heating element adopts titanium alloy material cladding, and the part that contacts with urea medium 6 all adopts the material that can not take place chemical reaction with urea to effectively prevent urea medium concentration change, the material colour changes the scheduling problem.
The liquid type constant temperature test device is based on the cooperation of the heating device and the cooling device, the cooling device provides cold energy, so that the urea solution is cooled to the test temperature, the heating device circularly heats the urea solution, the urea solution in the accommodating space circularly flows, the problem that the concentration of the solution is influenced due to the fact that the urea solution needs to be maintained at low temperature for a long time and can not flow to be in contact with the surface of the heat exchange component for supercooling and icing for a long time when the low-temperature test is carried out is avoided, and the concentration of the urea solution with other solubility in the test process can be influenced after icing and thawing if the solution is not cleaned in time, so that the accuracy of the test is influenced.
In some embodiments, the bottom surface of the accommodating space 11 is provided with a liquid outlet 111, and the side surface is provided with a liquid inlet 112; the liquid outlet 111 is communicated with a feed inlet of the heating device 2 through a pipeline; the liquid inlet 112 is communicated with the discharge port of the heating device 2 through a pipeline. The liquid inlet 112 is arranged on the side surface, the liquid outlet 111 is arranged on the bottom surface, so that the circulating flow of urea solution is facilitated, the temperature of each part in the accommodating space 11 is uniform, and the surface of the heat exchange assembly 32 is effectively prevented from being frozen.
In some embodiments, the liquid inlet 112 and the liquid outlet 111 are each plural in number. The circulating speed of the urea solution is improved based on the liquid inlets 112 and the liquid outlets 111, so that the temperature stability and the distribution uniformity of the urea solution in the test area are improved, and the temperature accuracy of the solution reaches the requirement of the use environment of the vehicle urea sensor.
Specifically, the number of the liquid inlets 112 is 2, and the number of the liquid outlets 111 is 3, and the liquid inlets are distributed along a straight line; the line of the liquid inlet 112 is arranged at an angle to the line of the liquid outlet 111, and the angle is larger than 0 degrees. The liquid inlet 112 and the liquid outlet 111 are connected in a diagonally staggered mode, so that urea solution can be conveyed into the accommodating space 11 through the heating device 2, no opposite flushing occurs to the flow direction of the solution, the uniformity of temperature distribution in a test area can be improved, and after the two liquids are heated through the heating device 2, the solution entering the accommodating space 11 exchanges heat with the surface of the heat exchange assembly 32, and the purpose of preventing ice formation on the surface of the heat exchange assembly 32 is achieved.
When the accommodation space 11 is of a rectangular parallelepiped structure, the line connecting the liquid inlet 112 and the liquid outlet 111 is disposed along the diagonal line of the bottom surface of the rectangular parallelepiped.
In some embodiments, the liquid inlet 112 is higher than the top of the heat exchange assembly 32, and a mesh plate 4 (steel mesh) is disposed between the liquid inlet 112 and the top of the heat exchange assembly 32; the solution flowing through the mesh plate 4 is filtered based on the mesh plate 4, so that the influence of impurities on the heat exchange effect by the heat exchange assembly 32 is avoided, and the solution flowing through the mesh plate 4 is also split, so that the uniform distribution of the temperature in the accommodating space 11 is promoted.
In some embodiments, the heating device 2 includes a circulation pump 21 (e.g., a magnetic pump for chemical use) and a heater 22 (e.g., model WST 1500W); the feed inlet of the circulating pump 21 is communicated with the accommodating space 11, and the discharge outlet is communicated with the feed inlet of the heater 22; the discharge port of the heater 22 communicates with the accommodating space 11.
In some embodiments, the case 1 also has a bottom space 12; the bottom space 12 is positioned below the accommodating space 11, and the heating device 2 and the cooling device 3 are arranged in the bottom space 12; the heating device 2 and the cooling device 3 are arranged in the bottom space 12, so that the liquid type constant temperature test device is more exquisite in whole and convenient to carry.
In some embodiments, the thermal insulation layer 5 is wrapped outside the accommodating space 11; the heat dissipation in the accommodation space 11 is avoided based on the arrangement of the heat-insulating layer.
In some embodiments, the bottom surface of the case 1 is provided with rollers 6 for easy handling.
In some embodiments, the heat exchange assembly 32 is a heat exchange coil; the heat exchange cooling coil is surrounded by multiple layers, surrounds the inner wall of the accommodating space 11, is at a distance of about 2mm from the inner wall of the accommodating space, is made of titanium alloy materials, and is subjected to teflon coating treatment on the surface, so that urea solution in a test area is continuously refrigerated.
In some embodiments, the temperature of the urea solution in the accommodating space 11 may be manually controlled, for example, by setting a valve control at the outlets of the heating device and the cooling device, or by adopting an automatic control, such as plc program control or dcs automatic control, for example, by presetting the required simulated ambient temperature through a touch temperature controller, and outputting a signal to the ac contactor and the SSR solid state relay to control the start-stop or the working power of the heating device and the cooling device, respectively, so as to control the temperature in the accommodating space 11, which may be specifically realized with reference to the prior art, and will not be described herein.
Claims (10)
1. The liquid type constant temperature test device is characterized by comprising a box body (1), a heating device (2) and a cooling device (3);
an accommodating space (11) is formed in the box body (1); the accommodating space (11) is used for accommodating liquid;
the feed inlet and the discharge outlet of the heating device (2) are respectively communicated with the accommodating space (11) through pipelines;
the cooling device (3) comprises a cooler (31) and a heat exchange assembly (32);
the heat exchange assembly (32) is arranged in the accommodating space (11), and a feed inlet and a discharge outlet of the heat exchange assembly (32) are respectively communicated with the cooler (31).
2. The liquid type constant temperature test device according to claim 1, wherein the bottom surface of the accommodating space (11) is provided with a liquid outlet (111), and the side surface is provided with a liquid inlet (112);
the liquid outlet (111) is communicated with a feed inlet of the heating device (2) through a pipeline;
the liquid inlet (112) is communicated with the discharge port of the heating device (2) through a pipeline.
3. The liquid type constant temperature test device according to claim 2, wherein the liquid inlet (112) and the liquid outlet (111) are plural in number, respectively.
4. A liquid type constant temperature test device according to claim 3, wherein the number of the liquid inlets (112) is 2, and the number of the liquid outlets (111) is 3, and the liquid inlets are distributed along a straight line;
the connecting line of the liquid inlet (112) and the connecting line of the liquid outlet (111) are arranged at an angle, and the angle is larger than 0 degrees.
5. The liquid type constant temperature test device according to claim 2, wherein the liquid inlet (112) is higher than the top of the heat exchange assembly (32), and a screen (4) is arranged between the liquid inlet (112) and the top of the heat exchange assembly (32).
6. A liquid type constant temperature test device according to claim 1, characterized in that the heating device (2) comprises a circulation pump (21) and a heater (22);
the feed inlet of the circulating pump (21) is communicated with the accommodating space (11), and the discharge outlet is communicated with the feed inlet of the heater (22);
the discharge hole of the heater (22) is communicated with the accommodating space (11).
7. A liquid type thermostatic test device according to claim 1, characterized in that the tank (1) also has a bottom space (12);
the bottom space (12) is positioned below the accommodating space (11), and the heating device (2) and the cooling device (3) are arranged in the bottom space (12).
8. The liquid type constant temperature test device according to claim 1, wherein the outer side of the accommodating space (11) is wrapped with a heat preservation layer (5).
9. The liquid type constant temperature test device according to claim 1, wherein the bottom surface of the box body (1) is provided with a roller (6).
10. A liquid type constant temperature test device according to claim 1, characterized in that the heat exchange assembly (32) is a heat exchange coil.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321685311.7U CN220091457U (en) | 2023-06-29 | 2023-06-29 | Liquid constant temperature test device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321685311.7U CN220091457U (en) | 2023-06-29 | 2023-06-29 | Liquid constant temperature test device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220091457U true CN220091457U (en) | 2023-11-28 |
Family
ID=88842192
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202321685311.7U Active CN220091457U (en) | 2023-06-29 | 2023-06-29 | Liquid constant temperature test device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220091457U (en) |
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2023
- 2023-06-29 CN CN202321685311.7U patent/CN220091457U/en active Active
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