Heat preservation assembly of urea pump

Abstract

The utility model relates to the technical field of urea pump heat preservation, and discloses a urea pump heat preservation assembly which comprises a top shell and a bottom shell, the top shell is arranged at the top of the bottom shell, the bottom shell extends into the top shell and is matched with the top shell, a first heat preservation layer is fixedly connected into the top shell, and a second heat preservation layer is fixedly connected into the bottom shell. And a second heat preservation layer is fixedly connected to the interior of the bottom shell, and a frame body is fixedly connected to the top of the top shell. Through the design of the heating mechanism, after the first heat preservation layer and the second heat preservation layer are arranged in the top shell and the bottom shell correspondingly, the heat preservation performance can be enhanced, if the temperature is high, a draught fan works independently for heat dissipation, and on the contrary, if the temperature is low, the heat dissipation effect is good. And when the fan works, the purpose of heating the internal space is achieved in a manner of heating the airflow by matching with the electric heating wire, so that the condition that the input urea solution can obtain a stable and reliable working temperature can be effectively ensured.

Description

Technical Field

[0001] The utility model relates to the technical field of urea pump insulation, in particular to a urea pump insulation component. Background Art

[0002] The urea pump is an important part of the urea solution injection metering system. Its main function is to extract the urea solution in the urea tank and maintain a certain pressure, and then transport it to the injection unit to meet the flow and pressure requirements of the injection metering system. During specific operation, the urea is first filtered out of impurities through the filter element to prevent clogging of the pipeline and nozzle, and then enters the urea solution pump and is sprayed out after being fully mixed with compressed air.

[0003] When the urea solution is working, changes in the external temperature will affect it. For example, when the temperature is too low, the urea solution will crystallize, and the crystallized part will not be able to be sprayed out. Therefore, when used in cold weather, the urea solution needs to be insulated and heated. The current mainstream heating method is to insulate and heat the urea tank storing the urea solution. However, since the urea solution needs to enter the urea pump and mix with compressed air before being sprayed out, heat will be consumed during the transportation process. Therefore, when entering the urea pump, the urea solution may not be able to reach a good working state due to the low urea pump. Therefore, a urea pump insulation component is proposed here to solve the above problem. Utility Model Content

[0004] In order to solve the above-mentioned problems, the utility model provides a urea pump insulation component.

[0005] The utility model provides a urea pump insulation component adopts the following technical solution:

[0006] A urea pump insulation component comprises a top shell and a bottom shell, wherein the top shell is arranged on the top of the bottom shell, the bottom shell extends into the top shell and matches the top shell, a first insulation layer is fixedly connected inside the top shell, a second insulation layer is fixedly connected inside the bottom shell, a frame is fixedly connected to the top of the top shell, and a heating mechanism is arranged on the frame;

[0007] The heating mechanism includes a fan, which is fixedly connected to the inside of a frame. A heating wire is arranged at the bottom of the fan, and the heating wire is fixedly connected to the inside of the frame. An air inlet is opened at the top of the top shell, and the heating wire is arranged at the top of the air inlet. A first insulation board is arranged inside the frame, and the first insulation board matches the air inlet. An auxiliary board is arranged on the top of the first insulation board. A temperature sensor is fixedly connected to the bottom of the first insulation board, and the temperature sensor is electrically connected to the fan and the heating wire respectively.

[0008] By adopting the above technical solution, after the first insulation layer and the second insulation layer are respectively arranged inside the top shell and the bottom shell, the insulation performance can be enhanced, and the temperature sensor detects the temperature of the space formed between the first insulation layer and the second insulation layer. If the temperature is high, the fan works alone to dissipate heat. On the contrary, if the temperature is low, the fan works while cooperating with the electric heating wire to heat the airflow to achieve the purpose of heating the internal space, thereby effectively ensuring that the input urea solution can obtain a stable and reliable working temperature.

[0009] Preferably, a threaded rod is rotatably connected inside the frame, the threaded rod passes through the auxiliary plate and is connected to the auxiliary plate by threads, a movable plate is provided inside the frame, a first electric push rod is fixedly connected to the rear side wall of the inner cavity of the frame, the first electric push rod is electrically connected to the temperature sensor, the first electric push rod is fixedly connected to the inner side of the movable plate, a limiting plate is fixedly connected inside the frame, the limiting plate passes through the movable plate, and a dust net is fixedly connected to the top of the frame.

[0010] By adopting the above technical solution, the first electric push rod can push and pull the movable plate after working.

[0011] Preferably, a gear is fixedly connected to the outside of the threaded rod, a rack is fixedly connected to the top of the movable plate, the rack is arranged at the bottom of the gear, and the rack is meshed with the gear.

[0012] By adopting the above technical solution, the movable plate drives the rack to move and then drives the gear to rotate.

[0013] Preferably, a second electric push rod is fixedly connected to the top of the first insulation board, the top of the second electric push rod is fixedly connected to the inner top of the auxiliary board, the second electric push rod is electrically connected to the temperature sensor, and a guide rod is fixedly connected to the top of the first insulation board, and the guide rod passes through the bottom wall of the auxiliary board.

[0014] By adopting the above technical solution, the second electric push rod can push and pull the first insulation board after it starts working.

[0015] Preferably, a groove is formed at the bottom of the first thermal insulation layer, and the top of the second thermal insulation layer extends into the groove and matches the groove.

[0016] By adopting the above technical solution, the guide rod provides lifting and lowering guidance for the auxiliary plate.

[0017] Preferably, exhaust holes are provided on one side wall of the bottom shell and the second insulation layer, and the exhaust holes on the bottom shell and the second insulation layer are connected, a control component is provided on one side of the bottom shell, the control component includes a second insulation plate, the second insulation plate matches the exhaust holes, a U-shaped plate is fixedly connected to one side wall of the bottom shell, the second insulation plate is provided on the inner side of the U-shaped plate and is slidably connected to the U-shaped plate, a third electric push rod is fixedly connected to one side of the second insulation plate, and the third electric push rod is fixedly connected to the inner side of the U-shaped plate.

[0018] By adopting the above technical solution, the heated or cooled gas is finally discharged to the outside through the exhaust hole.

[0019] Preferably, a filter plate is provided on one side of the second insulation plate, the filter plate extends into the exhaust hole and matches the exhaust hole, a connecting plate is fixedly connected to one side of the filter plate, and one side of the connecting plate is fixedly connected to one side of the second insulation plate.

[0020] By adopting the above technical solution, the filter plate can protect the exhaust hole to prevent external impurities from entering.

[0021] In summary, the utility model includes the following beneficial technical effects:

[0022] 1. A urea pump insulation component, through the design of a heating mechanism, after the first insulation layer and the second insulation layer are respectively arranged inside the top shell and the bottom shell, the insulation performance can be enhanced. If the temperature is high, the fan works alone to dissipate heat. On the contrary, if the temperature is low, the fan works while cooperating with the electric heating wire to heat the airflow to achieve the purpose of heating the internal space, thereby effectively ensuring that the input urea solution can obtain a stable and reliable working temperature.

[0023] 2. A urea pump insulation component, through the design of the control component, the gas after heating or air cooling is discharged through the exhaust hole, and the filter plate is controlled to be inside the exhaust hole during the exhaust process, ensuring that the gas can pass smoothly while external impurities will not enter through the exhaust hole, which has higher safety. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 It is a schematic diagram of the structure of the utility model;

[0025] Figure 2 It is a cross-sectional view of the structure of the utility model;

[0026] Figure 3 for Figure 2 A in the enlarged view;

[0027] Figure 4 This is a structural breakdown diagram of the utility model;

[0028] Figure 5 This is a structural cross-sectional view of the frame in the utility model;

[0029] Figure 6 for Figure 5 The enlarged view of point B in the figure;

[0030] Figure 7 It is a sectional bottom view of the first insulation board in the utility model;

[0031] Figure 8 This is a structural cross-sectional view of the second insulation board in the utility model;

[0032] Fig. 9 for Figure 8 Enlarged view of point C in the figure.

[0033] Explanation of the reference numerals: 1. top shell; 2. bottom shell; 3. first insulation layer; 4. second insulation layer; 5. frame; 6. heating mechanism; 61. fan; 62. heating wire; 63. air inlet; 64. first insulation board; 65. auxiliary board; 66. temperature sensor; 67. threaded rod; 68. movable board; 69. first electric push rod; 691. limit plate; 692. gear; 693. rack; 694. second electric push rod; 695. guide rod; 7. groove; 8. exhaust hole; 9. control assembly; 91. second insulation board; 92. U-shaped board; 93. third electric push rod; 94. filter board; 95. connecting board. DETAILED DESCRIPTION

[0034] The following is combined with Figure 1-9 The utility model is described in further detail.

[0035] The utility model discloses a urea pump insulation component. Figure 1-9 A urea pump insulation component comprises a top shell 1 and a bottom shell 2, wherein the top shell 1 is arranged on the top of the bottom shell 2, the bottom shell 2 extends into the top shell 1 and matches the top shell 1, a first insulation layer 3 is fixedly connected inside the top shell 1, a second insulation layer 4 is fixedly connected inside the bottom shell 2, a frame 5 is fixedly connected to the top of the top shell 1, and a heating mechanism 6 is arranged on the frame 5;

[0036] The heating mechanism 6 includes a fan 61, which is fixedly connected to the inside of the frame 5. A heating wire 62 is arranged at the bottom of the fan 61, and the heating wire 62 is fixedly connected to the inside of the frame 5. An air inlet 63 is opened at the top of the top shell 1, and the heating wire 62 is arranged at the top of the air inlet 63. A first insulation board 64 is arranged inside the frame 5, and the first insulation board 64 matches the air inlet 63. An auxiliary board 65 is arranged on the top of the first insulation board 64. A temperature sensor 66 is fixedly connected to the bottom of the first insulation board 64, and the temperature sensor 66 is electrically connected to the fan 61 and the heating wire 62 respectively. After the first insulation layer 3 and the second insulation layer 4 are respectively arranged inside the top shell 1 and the bottom shell 2, the insulation performance can be enhanced. The temperature sensor 66 detects the temperature of the space formed between the first insulation layer 3 and the second insulation layer 4. If the temperature is high, the fan 61 works alone to dissipate heat. On the contrary, if the temperature is low, the fan 61 works while cooperating with the heating wire 62 to heat the airflow to achieve the purpose of heating the internal space, thereby effectively ensuring that the input urea solution can obtain a stable and reliable working temperature.

[0037] A threaded rod 67 is rotatably connected inside the frame 5, and the threaded rod 67 penetrates the auxiliary plate 65 and is connected to the auxiliary plate 65 by threads. A movable plate 68 is arranged inside the frame 5, and a first electric push rod 69 is fixedly connected to the rear side wall of the inner cavity of the frame 5, and the first electric push rod 69 is electrically connected to the temperature sensor 66, and the first electric push rod 69 is fixedly connected to the inner side of the movable plate 68. A limit plate 691 is fixedly connected inside the frame 5, and the limit plate 691 penetrates the movable plate 68. A dustproof net is fixedly connected to the top of the frame 5, and the first electric push rod 69 can push and pull the movable plate 68 after working;

[0038] A gear 692 is fixedly connected to the outside of the threaded rod 67, and a rack 693 is fixedly connected to the top of the movable plate 68. The rack 693 is arranged at the bottom of the gear 692, and the rack 693 is meshed with the gear 692. After the movable plate 68 drives the rack 693 to move, the gear 692 can be driven to rotate. A second electric push rod 694 is fixedly connected to the top of the first insulation plate 64, and the top of the second electric push rod 694 is fixedly connected to the top of the inner side of the auxiliary plate 65. The second electric push rod 694 is electrically connected to the temperature sensor 66. A guide rod 695 is fixedly connected to the top of the first insulation plate 64, and the guide rod 695 penetrates the bottom wall of the auxiliary plate 65. After the second electric push rod 694 is working, the first insulation plate 64 can be pushed and pulled. A groove 7 is opened at the bottom of the first insulation layer 3, and the top of the second insulation layer 4 extends into the groove 7 and matches the groove 7. The guide rod 695 provides lifting and lowering guidance for the auxiliary plate 65.

[0039] The bottom shell 2 and the second insulation layer 4 are both provided with exhaust holes 8 on one side wall, and the exhaust holes 8 on the bottom shell 2 and the second insulation layer 4 are connected. A control component 9 is provided on one side of the bottom shell 2, and the control component 9 includes a second insulation plate 91, and the second insulation plate 91 matches the exhaust hole 8. A U-shaped plate 92 is fixedly connected to one side wall of the bottom shell 2, and the second insulation plate 91 is arranged on the inner side of the U-shaped plate 92 and is slidably connected to the U-shaped plate 92. A third electric push rod 93 is fixedly connected to one side of the second insulation plate 91, and the third electric push rod 93 is fixedly connected to the inner side of the U-shaped plate 92. The heated or cooled gas is finally discharged to the outside through the exhaust hole 8;

[0040] A filter plate 94 is provided on one side of the second insulation plate 91. The filter plate 94 extends into the exhaust hole 8 and matches the exhaust hole 8. A connecting plate 95 is fixedly connected to one side of the filter plate 94. One side of the connecting plate 95 is fixedly connected to one side of the second insulation plate 91. The filter plate 94 can protect the exhaust hole 8 to prevent external impurities from entering.

[0041] In actual operation, when the device is used, the device is first powered on, and while the top shell 1 and the bottom shell 2 are being assembled, the second insulation layer 4 is inserted into the groove 7. At this time, the first insulation layer 3 and the second insulation layer 4 form a complete insulation frame, which can effectively insulate and protect the internal space. The temperature sensor 66 detects the temperature. When the temperature is within the normal range, the first insulation board 64 is inside the air inlet 63, and the second insulation board 91 is inserted into the exhaust hole 8, so as to enhance its sealing performance and ensure the insulation effect.

[0042] If the temperature sensor 66 detects that the internal temperature is higher or lower, first the second electric push rod 694 works and pulls the first insulation plate 64 upward, causing the first insulation plate 64 to leave the air inlet 63, and then the first electric push rod 69 pushes the movable plate 68, and the movable plate 68 drives the rack 693 to move, and the rack 693 drives the gear 692 to rotate, and the gear 692 rotates and drives the threaded rod 67 to rotate, and the threaded rod 67 drives the auxiliary plate 65 to move. It can be seen from the above connection relationship that at this time, the first insulation plate 64 follows the auxiliary plate 65 to translate until the first insulation plate 64 moves to the top side of the air inlet 63 to release the seal of the air inlet 63. Based on the above principle, it can be seen that if the air inlet 63 needs to be re-sealed, repeating the above similar reverse operations can cause the first insulation plate 64 to re-enter the air inlet 63.

[0043] While the above operations are being performed, the third electric push rod 93 pulls the second insulation plate 91 to the side of the exhaust hole 8, the second insulation plate 91 drives the connecting plate 95 to move, and the connecting plate 95 drives the filter plate 94 to move. When the second insulation plate 91 moves a distance sufficient for the gas to be discharged smoothly, it is also necessary to ensure that the filter plate 94 is inside the exhaust hole 8, so as to ensure that the gas can pass smoothly while foreign impurities will not enter through the exhaust hole 8, which is safer. Similarly, if the exhaust hole 8 needs to be re-sealed, the third electric push rod 93 pushes the second insulation plate 91 to insert it into the exhaust hole 8 to complete the sealing;

[0044] After the above operation is completed, if the temperature sensor 66 detects that the temperature is too low, the heating wire 62 and the fan 61 work at the same time, and the fan 61 sends air into the space formed by the first thermal insulation layer 3 and the second thermal insulation layer 4, and the air flow is heated when passing through the heating wire 62, and the hot air enters the space to achieve the purpose of heating and heating. If the temperature is too high, the heating wire 62 does not work, and the fan 61 works alone to send gas into the space to achieve the purpose of air cooling and heat dissipation. The heated or air-cooled gas is discharged through the exhaust hole 8. Through the above operations, different temperature control requirements can be properly responded to, thereby improving the adaptability of the device.

[0045] The above are all preferred embodiments of the present utility model, and are not intended to limit the protection scope of the present utility model. Therefore, any equivalent changes made based on the structure, shape, and principle of the present utility model should be included in the protection scope of the present utility model.

Claims

1. A urea pump insulation assembly, comprising a top shell (1) and a bottom shell (2), characterized in that: The top shell (1) is arranged on the top of the bottom shell (2); the bottom shell (2) extends into the top shell (1) and matches the top shell (1); a first thermal insulation layer (3) is fixedly connected to the inside of the top shell (1); a second thermal insulation layer (4) is fixedly connected to the inside of the bottom shell (2); a frame (5) is fixedly connected to the top of the top shell (1); and a heating mechanism (6) is arranged on the frame (5); The heating mechanism (6) comprises a fan (61), the fan (61) is fixedly connected to the inside of the frame (5), a heating wire (62) is arranged at the bottom of the fan (61), the heating wire (62) is fixedly connected to the inside of the frame (5), an air inlet (63) is opened at the top of the top shell (1), the heating wire (62) is arranged at the top of the air inlet (63), a first insulation board (64) is arranged inside the frame (5), the first insulation board (64) matches the air inlet (63), an auxiliary board (65) is arranged on the top of the first insulation board (64), and a temperature sensor (66) is fixedly connected to the bottom of the first insulation board (64), and the temperature sensor (66) is electrically connected to the fan (61) and the heating wire (62) respectively.

2. The urea pump insulation component according to claim 1, characterized in that: A threaded rod (67) is rotatably connected inside the frame (5), and the threaded rod (67) passes through the auxiliary plate (65) and is connected to the auxiliary plate (65) by threads. A movable plate (68) is arranged inside the frame (5), and a first electric push rod (69) is fixedly connected to the rear side wall of the inner cavity of the frame (5), and the first electric push rod (69) is electrically connected to the temperature sensor (66). The first electric push rod (69) is fixedly connected to the inner side of the movable plate (68). A limiting plate (691) is fixedly connected inside the frame (5), and the limiting plate (691) passes through the movable plate (68). A dustproof net is fixedly connected to the top of the frame (5).

3. A urea pump insulation assembly according to claim 2, characterized in that: The threaded rod (67) is fixedly connected to a gear (692) on the outside, and the top of the movable plate (68) is fixedly connected to a rack (693), which is arranged at the bottom of the gear (692) and meshes with the gear (692).

4. The urea pump insulation component according to claim 1, characterized in that: A second electric push rod (694) is fixedly connected to the top of the first insulation plate (64), and the top of the second electric push rod (694) is fixedly connected to the inner top of the auxiliary plate (65). The second electric push rod (694) is electrically connected to the temperature sensor (66). A guide rod (695) is fixedly connected to the top of the first insulation plate (64), and the guide rod (695) passes through the bottom wall of the auxiliary plate (65).

5. The urea pump insulation component according to claim 1, characterized in that: A groove (7) is provided at the bottom of the first thermal insulation layer (3), and the top of the second thermal insulation layer (4) extends into the groove (7) and matches the groove (7).

6. The urea pump insulation component according to claim 1, characterized in that: The bottom shell (2) and the second thermal insulation layer (4) are both provided with exhaust holes (8) on one side wall, and the exhaust holes (8) on the bottom shell (2) and the second thermal insulation layer (4) are communicated with each other. A control component (9) is provided on one side of the bottom shell (2), and the control component (9) comprises a second thermal insulation plate (91), and the second thermal insulation plate (91) matches the exhaust hole (8). A U-shaped plate (92) is fixedly connected to one side wall of the bottom shell (2), and the second thermal insulation plate (91) is arranged on the inner side of the U-shaped plate (92) and is slidably connected to the U-shaped plate (92). A third electric push rod (93) is fixedly connected to one side of the second thermal insulation plate (91), and the third electric push rod (93) is fixedly connected to the inner side of the U-shaped plate (92).

7. The urea pump insulation component according to claim 6, characterized in that: A filter plate (94) is provided on one side of the second thermal insulation plate (91), the filter plate (94) extends into the exhaust hole (8) and matches the exhaust hole (8), a connecting plate (95) is fixedly connected to one side of the filter plate (94), and one side of the connecting plate (95) is fixedly connected to one side of the second thermal insulation plate (91).

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