Urea heating water pipe and device

Abstract

The utility model relates to a urea heating water pipe and device, the urea heating water pipe comprises a water pipe, a frost crack prevention part is arranged in the pipe body of the water pipe, and the frost crack prevention part comprises a spiral elastic piece and a frost crack prevention filling layer; the anti-frost-crack filling layer is arranged in the cavity of the spiral elastic piece or arranged in the cavity of the spiral elastic piece; and the spiral elastic piece is arranged in the frost crack prevention filling layer. According to the utility model, the integrality of the water pipe is not damaged, the process is simple, the production is controllable, and the heating and unfreezing effects on urea are not influenced under the condition of ensuring the flow.

Description

Technical Field

[0001] The utility model relates to a urea heating water pipe and device, mainly belonging to the technical field of automobiles. Background Art

[0002] At present, there are some devices on the market for heating and thawing urea in the urea tank; most of the devices are connected with water inlet and outlet interfaces at the top, the sensor is connected with a tray at the bottom, and a spiral tube is arranged between the top and the bottom of the sensor. The two pipe orifices of the spiral tube are respectively communicated with the two water interfaces, and the urea is heated by the hot water of the engine; there are also some sensors that use electric heating to heat and thaw the urea.

[0003] A urea heating device disclosed in Patent CN213478435U can heat urea solution either by electric heating or by water heating. However, it does not have a design for preventing the heating water pipe from being deformed or cracked due to low temperature. Content of the Utility Model

[0004] In order to overcome the above defects, the utility model provides a urea heating water pipe and device. When the user uses the heating assembly, even if the engine coolant is replaced with water, it can effectively avoid the problem that when the user forgets to empty the clear water in the sensor water pipe in winter at low temperature, the water freezes and expands, causing the water pipe to be deformed to varying degrees and the connection between the water pipe and the upper shell to be damaged, resulting in product failure.

[0005] To achieve the above object, the utility model adopts the following technical solutions:

[0006] A urea heating water pipe, comprising:

[0007] A water pipe, in which an anti-freezing and cracking component is arranged in the pipe body of the water pipe, and the anti-freezing and cracking component comprises a spiral elastic member and an anti-freezing and cracking filling layer;

[0008] The anti-freezing and cracking filling layer is arranged in the cavity of the spiral elastic member, or;

[0009] The spiral elastic member is arranged in the anti-freezing and cracking filling layer.

[0010] For the urea heating water pipe, preferably, the anti-freezing and cracking filling layer comprises any one of a rubber and plastic sponge filling layer, a rock wool heat preservation felt filling layer, a foamed polyurethane filling layer, a basalt fiber filling layer, a foamed silica gel layer or a foamed rubber layer.

[0011] For the urea heating water pipe, preferably, the anti-freezing and cracking component completely fills the water pipe, or;

[0012] The anti-freezing and cracking component partially fills the water pipe, or;

[0013] The anti-freezing and cracking component is filled in the water pipe at intervals in sections.

[0014] For the urea heating water pipe described above, preferably, the spiral elastic member and the anti-freezing and cracking filling layer are integrally formed or designed in a split manner.

[0015] For the urea heating water pipe described above, preferably, the spiral elastic member is a spiral spring.

[0016] The second aspect of the present invention provides a urea heating device, which includes the urea heating water pipe described in any one of the above, and further includes: a sensor upper housing and a urea pipe;

[0017] The upper ends of the water pipe and the urea pipe are both connected to the sensor upper housing, and the lower ends of the two are respectively connected to a base. A circulation loop is formed between the water pipe and the sensor upper housing.

[0018] For the urea heating device described above, preferably, the water pipe is a spiral coiled U-shaped pipe, and its two openings are respectively connected to the sensor upper housing.

[0019] For the urea heating device described above, preferably, the sensor upper housing is provided with a water inlet and a water outlet. The water inlet is connected to the hot water outlet of the engine, and the water outlet is used to discharge the circulating water.

[0020] For the urea heating device described above, preferably, the upper ends of the water pipe and the urea pipe are both connected to the sensor upper housing through fixing plates, and the lower ends of the two are both connected to the base through chassis clamps.

[0021] For the urea heating device described above, preferably, the water pipe is installed at the top or bottom of the urea tank, or fixed on the inner wall of the urea tank.

[0022] Compared with the prior art, due to the adoption of the above technical solutions, the present utility model has the following beneficial technical effects:

[0023] (1) The water pipe of the present utility model does not damage the integrity of the water pipe, and will not cause problems such as rusting and leakage due to welding. The process is simple and the production is controllable.

[0024] (2) The water pipe of the present utility model uses a spring to wrap the filling material. This structure can be directly rotated into the water pipe in a way of rotating like unclogging a sewer after the water pipe is formed, and penetrate through the entire water pipe. The process is simple.

[0025] (3) A spring is used in the water pipe of the present utility model. By using its rigidity, the risk of blockage can be avoided, and it will not isolate the contact between the heating water and the pipe wall. While ensuring the flow rate, it will not affect the heating and thawing effect on urea. Description of the Drawings

[0026] Figure 1 The overall schematic diagram of the urea heating device provided by an embodiment of the present utility model;

[0027] Figure 2 The schematic diagram of the urea heating water pipe provided by this embodiment of the present utility model;

[0028] Figure 3 The schematic diagram of the anti-freezing and cracking component in the urea heating water pipe provided by this embodiment of the present utility model;

[0029] The above-mentioned reference numerals respectively represent:

[0030] 1 - water inlet, 2 - water outlet, 3 - water pipe, 4 - upper shell of the sensor, 5 - urea pipe, 6 - base; 7 - anti-freezing and cracking filling layer; 8 - spiral spring. Specific embodiments

[0031] To make the objectives, technical solutions and advantages of the present utility model clearer, the technical solutions in the present utility model will be clearly and completely described below. Apparently, the described embodiments are some but not all of the embodiments of the present utility model. All other embodiments obtained by those of ordinary skill in the art based on the embodiments in the present utility model without creative efforts shall fall within the scope of protection of the present utility model.

[0032] Unless otherwise defined, the technical terms or scientific terms used in the present utility model shall have the ordinary meanings understood by those of ordinary skill in the art to which the present utility model pertains. The "first", "second", "third", "fourth" and similar terms used in the present utility model do not denote any order, quantity or importance, but are only used to distinguish different components. The terms such as "including" or "comprising" mean that the elements or items appearing before this term cover the elements or items listed after this term and their equivalents, without excluding other elements or items. The terms such as "connected" or "coupled" are not limited to physical or mechanical connections, but may include electrical connections, whether direct or indirect.

[0033] For the convenience of description, spatial relative relationship terms may be used in the text to describe the relationship between one element or feature shown in the figure and another element or feature, and such relative relationship terms such as "inner", "outer", "inner side", "outer side", "below", "above", etc. are intended to include different orientations of the device in use or operation in addition to the orientations depicted in the figure.

[0034] During user operation, the engine coolant (with a minimum freezing point of -45°C) is occasionally replaced with water, resulting in the water pipe of the sensor being filled with water. In the case of low winter temperatures when the user forgets to empty the clear water in the sensor water pipe, the water freezes and expands, causing varying degrees of deformation of the water pipe and damage at the connection between the water pipe and the upper housing, leading to product failure.

[0035] To solve the above problems, the present utility model provides a urea heating water pipe. This urea heating water pipe not only has the structure of a traditional heating water pipe but also fills an anti-freezing and cracking component in the water pipe. This anti-freezing and cracking component not only has a simple process and controllable production but also, while ensuring the flow rate, does not affect the heating and thawing effect on urea.

[0036] As Figure 2 、 3 shown, the urea heating water pipe involved in the present utility model includes: a water pipe 3, and an anti-freezing and cracking component is arranged inside the pipe body of the water pipe 3. The anti-freezing and cracking component includes a spiral spring 8 and an anti-freezing and cracking filling layer 7.

[0037] Furthermore, the anti-freezing and cracking filling layer 7 can be any one of a rubber and plastic sponge filling layer, a rock wool heat preservation felt filling layer, a foamed polyurethane filling layer, or a basalt fiber filling layer.

[0038] Furthermore, when the anti-freezing and cracking filling layer 7 and the spiral spring 8 are in a mutually wrapped form, it can be that the anti-freezing and cracking filling layer 7 wraps the spiral spring 8, or it can be that the spiral spring 8 wraps the anti-freezing and cracking filling layer 7.

[0039] As Figure 3 shown, after the spiral spring 8 and the anti-freezing and cracking filling layer 7 are respectively formed, the anti-freezing and cracking filling layer 7 passes through both ends of the spiral spring 8 and penetrates into the entire spring, forming a form in which the spiral spring 8 wraps the anti-freezing and cracking filling layer 7.

[0040] Furthermore, as Figure 2 shown, the filling of the anti-freezing and cracking filling layer 7 in the water pipe 3 can be selected to be completely filled or partially filled according to requirements.

[0041] Furthermore, the filling of the anti-freezing and cracking filling layer 7 in the water pipe 3 can be carried out in sections, that is, the anti-freezing and cracking filling layer 7 can be divided into multiple parts and filled into the water pipe 3 in sequence according to the actual situation.

[0042] As Figure 1As shown in the figure, the urea heating device involved in the present utility model includes: a water inlet 1, a water outlet 2, a water pipe 3, a sensor upper housing 4, a urea pipe 5 and a base 6; the upper ends of the water pipe 3 and the urea pipe 5 are connected to the sensor upper housing 4 through a fixing plate, and the lower ends are connected to the base 6 through a chassis clamp; the water inlet 1 and the water outlet 2 are respectively fixed at both ends of the sensor upper housing 4, and the water inlet 1 is connected to the hot water output of the engine; the water pipe 3 and the sensor upper housing 4 are interconnected to form a circulation loop; an anti-freezing and cracking component is filled inside the water pipe 3, and the anti-freezing and cracking component is filled inside the water pipe 3 by stuffing, and a gap for liquid passage is left inside the water pipe 3; the anti-freezing and cracking component is composed of an anti-freezing and cracking filling layer 7 and a spiral spring 8.

[0043] Further, the water pipe 3 is a spiral coiled U-shaped pipe, and its two openings are respectively connected to the sensor upper housing 4.

[0044] Further, the anti-freezing and cracking filling layer 7 filled in the water pipe 3 can be selectively extended into the sensor upper housing 4 or not extended into the sensor upper housing 4 according to needs.

[0045] Further, after the water pipe 3 is connected to the sensor upper housing 4 through a fixing plate, it can be installed on the top or bottom of the urea tank, or directly fixed on the inner wall of the urea tank.

[0046] Further, the urea heating water pipe 3 can use the hot water of the engine to heat the urea, and at the same time, it can also use clean water to heat the urea.

[0047] The present utility model adopts the form of mutual wrapping of the anti-freezing and cracking filling layer 7 and the spiral spring 8 and adds them into the water pipe 3. Compared with other solutions such as welding a pressure relief valve on the water pipe and welding a bypass pipeline on the outer wall of the pipe, the solution of the present utility model has the advantages of not damaging the integrity of the water pipe, not causing problems such as rusting and leakage due to welding, simple process, and controllable production; compared with the solution of only filling materials, the solution of the present utility model introduces the spiral spring 8. In this way, not only can it be directly rotated into the water pipe in the form of rotating through the sewer after the water pipe is formed, penetrating the entire water pipe, with a simple process, but also the rigidity of the spring can avoid the risk of blockage, and it will not isolate the heating water from contacting the pipe wall. While ensuring the flow rate, it will not affect the heating and thawing effect on the urea. In addition, the filling material and the spring can be integrally formed, or separately formed and assembled together by mechanical connection, bonding or other means, so as to meet different requirements in different situations.

[0048] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit it; although the present invention has been described in detail with reference to the foregoing embodiments, those of ordinary skill in the art should understand that they can still modify the technical solutions recorded in the foregoing embodiments, or perform equivalent replacements for some of the technical features; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the spirit and scope of the technical solutions of the embodiments of the present invention.

Claims

1. A urea heating water pipe, characterized in that: include: A water pipe (3), wherein an anti-freezing and cracking component is arranged in the pipe body of the water pipe (3), and the anti-freezing and cracking component comprises a spiral elastic member and an anti-freezing and cracking filling layer (7); The anti-freezing and cracking filling layer (7) is arranged in the cavity of the spiral elastic member, or; The spiral elastic member is arranged in the anti-freezing and cracking filling layer (7).

2. The urea heating water pipe according to claim 1, characterized in that: The anti-freezing crack filling layer (7) comprises any one of a rubber-plastic sponge filling layer, a rock wool insulation felt filling layer, a foamed polyurethane filling layer, a basalt fiber filling layer, a foamed silica gel layer or a foamed rubber layer.

3. The urea heating water pipe according to claim 1, characterized in that: The anti-freezing crack component is completely filled in the water pipe (3), or; The anti-freezing crack component is partially filled in the water pipe (3), or; The anti-freezing and cracking components are filled in the water pipe (3) at intervals in sections.

4. The urea heating water pipe according to claim 1, characterized in that: The spiral elastic member and the anti-freezing and cracking filling layer (7) are integrally formed or designed as separate parts.

5. The urea heating water pipe according to claim 1, characterized in that: The helical elastic member is a helical spring (8).

6. A urea heating device, comprising the urea heating water pipe according to any one of claims 1 to 5, characterized in that: Also includes: A sensor upper housing (4) and a urea pipe (5); The upper ends of the water pipe (3) and the urea pipe (5) are both connected to the upper housing (4) of the sensor, and the lower ends of the two are respectively connected to the base (6), so that a circulation loop is formed between the water pipe (3) and the upper housing (4) of the sensor.

7. The urea heating device according to claim 6, characterized in that: The water pipe (3) is a spirally wound U-shaped pipe, and its two openings are respectively connected to the sensor upper shell (4).

8. The urea heating device according to claim 6, characterized in that: The sensor upper housing (4) is provided with a water inlet (1) and a water outlet (2); the water inlet (1) is connected to the hot water outlet of the engine, and the water outlet (2) is used to discharge circulating water.

9. The urea heating device according to claim 6, characterized in that: The upper ends of the water pipe (3) and the urea pipe (5) are connected to the sensor upper housing (4) via a fixing plate, and the lower ends of both are connected to the base (6) via a chassis clamp.

10. The urea heating device according to claim 9, characterized in that: The water pipe (3) is installed on the top or bottom of the urea tank, or is fixed on the inner wall of the urea tank.

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