Methanol pump capable of building pressure quickly

Abstract

The utility model provides a fast pressure buildup methanol pump, which belongs to the technical field of methanol pumps and comprises a first shell and a second shell, a pump cavity is arranged in the first shell, a stator cavity is arranged in the second shell, and a fast pressure buildup partition plate is arranged between the pump cavity and the stator cavity. According to the utility model, the methanol filling space in the methanol pump can be reduced, the system pressure is quickly established, and the system responsiveness is improved.

Description

Technical Field

[0001] The utility model belongs to the technical field of methanol pumps, and in particular relates to a fast pressure-building methanol pump. Background Art

[0002] As the global energy crisis becomes increasingly serious and oil resources become increasingly scarce, the development of new energy sources becomes increasingly urgent. Methanol, as a renewable new energy source, can be a substitute for diesel and gasoline, which can effectively save the use of virgin fuels, and help reduce automobile pollution to the environment and reduce fuel consumption of automobile users.

[0003] A methanol pump is a device that uses magnetic transmission of permanent magnets to achieve contactless transmission of torque, and can be used to transport methanol and other media. In the related art, a methanol pump includes a housing, a rotor assembly and a stator assembly are provided on the housing, a liquid inlet channel and a liquid outlet channel are provided on the housing, the liquid inlet channel and the liquid outlet channel are respectively provided on opposite sides of the housing, and the liquid inlet channel and the liquid outlet channel are connected to each other, the rotor assembly includes a rotating rod, a rotating blade and a connecting pipe, the rotating blade is sleeved on the outer circumferential surface of the rotating rod, the rotating blade is located in the connecting pipe, and a liquid outlet connected to the liquid outlet channel and a liquid inlet connected to the liquid inlet channel are provided on the end surface of the connecting pipe, the stator assembly is used to rotate the rotating rod, the stator assembly is located between the liquid inlet channel and the liquid outlet, and when the liquid flows into the liquid inlet channel, the connecting pipe and the liquid outlet channel, the liquid flows through the stator assembly.

[0004] After the methanol supply system is started for the first time or the system stops running, the methanol pipeline is empty or partially empty due to backflow. Before starting again, the system pressure cannot be established quickly. It is necessary to wait for methanol to fill the inner cavity of the methanol pump to establish the methanol injection pressure. The system responsiveness is low. Utility Model Content

[0005] In view of the defects or shortcomings in the prior art, the utility model provides a fast pressure-building methanol pump, which can reduce the methanol filling space in the methanol pump, quickly build up system pressure, and improve system responsiveness.

[0006] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0007] An embodiment of the utility model provides a fast pressure-building methanol pump, comprising a first shell and a second shell, wherein a pump cavity is arranged inside the first shell, a stator cavity is arranged inside the second shell, and a fast pressure-building diaphragm is arranged between the pump cavity and the stator cavity.

[0008] Furthermore, the first shell and the second shell are connected by bolts, and a sealing ring is arranged on the contact surface between the first shell and the second shell.

[0009] Furthermore, a pump assembly is disposed inside the first shell, and the pump chamber is located outside the pump assembly.

[0010] Furthermore, the pump assembly is also provided with a methanol inlet pipe and a methanol outlet pipe, the methanol inlet pipe is connected to the alcohol tank, and the methanol outlet pipe is connected to the vehicle methanol pipeline.

[0011] Furthermore, the methanol inlet pipe and the methanol outlet pipe are both arranged at an end of the first shell away from the second shell.

[0012] Furthermore, the methanol inlet pipe and the methanol outlet pipe are arranged opposite to each other.

[0013] Furthermore, the methanol inlet pipe and the methanol outlet pipe are both connected to the pump chamber.

[0014] Furthermore, the rapid pressure building partition is an annular partition used to separate the stator cavity from the pump cavity.

[0015] Furthermore, a methanol inlet one-way valve is provided at the bottom of the methanol inlet pipeline.

[0016] Furthermore, a stator is placed in the stator cavity.

[0017] Compared with the prior art, the beneficial effects of the utility model are:

[0018] 1. The utility model sets a fast pressure-building partition between the pump cavity and the stator cavity. Methanol only needs to fill the pump cavity and does not need to fill the stator cavity to flow out from the methanol outlet. The system can build pressure faster and improve system responsiveness.

[0019] 2. The utility model can prevent methanol from contacting the stator and other structures by providing a rapid pressure-building partition, thereby reducing the risks of corrosion and leakage caused by methanol. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 This is a schematic diagram of the internal structure of a methanol pump in an embodiment of the utility model;

[0021] Among them, 1. methanol inlet pipeline; 2. pump assembly; 3. pump chamber; 4. sealing ring; 5. rapid pressure building partition; 6. stator chamber; 7. stator; 8. first shell; 9. second shell; 10. methanol outlet pipeline; 11. methanol inlet one-way valve. DETAILED DESCRIPTION

[0022] The utility model is further described below in conjunction with the accompanying drawings and embodiments.

[0023] A typical implementation of the present utility model is as follows Figure 1As shown, a fast pressure-building methanol pump includes a first shell 8 and a second shell 9, the first shell 8 and the second shell 9 are connected by bolts, and a sealing ring 4 is arranged on the contact surface between the first shell 8 and the second shell 9 to ensure the sealing between the first shell 8 and the second shell 9, a stator cavity 6 is arranged inside the second shell 9 for placing the stator 7, a pump assembly 2 and a pump cavity 3 are arranged inside the first shell 8, the pump cavity 3 is located outside the pump assembly 2, a fast pressure-building partition 5 is arranged between the pump cavity 3 and the stator cavity 6, and the fast pressure-building partition 5 is an annular partition that can separate the stator cavity 6 from the pump cavity 3 and ensure the sealing between the stator cavity 6 and the pump cavity 3.

[0024] A methanol inlet pipe 1 and a methanol outlet pipe 10 are provided at one end of the first shell 8 away from the second shell 9. The methanol inlet pipe 9 is connected to the alcohol tank, and the methanol outlet pipe 10 is connected to the vehicle methanol pipeline. The methanol inlet pipe 9 and the methanol outlet pipe 10 are arranged opposite to each other.

[0025] The methanol inlet pipe 9 and the methanol outlet pipe 10 are both connected to the pump chamber 3. During the methanol transportation process, methanol enters through the methanol inlet pipe 9 and fills the pump chamber 3. Since a rapid pressure building partition 5 is provided between the pump chamber 3 and the stator chamber 6, methanol does not need to enter the stator chamber 6, thereby reducing the volume of the methanol chamber. Methanol only needs to fill the pump chamber 2 and does not need to fill the stator chamber 6 to flow out from the methanol outlet pipe 10. The system can build up pressure faster, thereby improving the responsiveness of the system.

[0026] In addition, a rapid pressure building partition 5 is provided between the pump cavity 3 and the stator cavity 6 to prevent methanol from contacting the stator structure, thereby reducing the risks of corrosion and leakage caused by methanol.

[0027] A methanol inlet check valve 11 is provided at the bottom of the methanol inlet pipeline 1. The methanol inlet check valve 11 adopts a common check valve on the market. When the methanol pump is working, methanol can push the methanol inlet check valve 11 and enter the methanol pump and subsequent pipelines to establish methanol pressure. When the engine is shut down and the methanol pump stops working, the methanol inlet check valve 11 can prevent methanol from flowing back to the alcohol tank due to potential energy. When the vehicle is started again, there is no need to fill the methanol pipeline again, so that the vehicle can be started quickly.

[0028] The above description is only the preferred embodiment of the utility model, and is not intended to limit the utility model. For those skilled in the art, the utility model can have various modifications and changes. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the utility model shall be included in the protection scope of the utility model.

Claims

1. A fast pressure-building methanol pump, characterized in that: The invention comprises a first shell and a second shell, wherein a pump cavity is arranged inside the first shell, a stator cavity is arranged inside the second shell, and a rapid pressure building partition is arranged between the pump cavity and the stator cavity.

2. A fast pressure-building methanol pump as claimed in claim 1, characterized in that: The first shell is connected to the second shell by bolts, and a sealing ring is arranged on the contact surface between the first shell and the second shell.

3. A fast pressure-building methanol pump as claimed in claim 1, characterized in that: A pump assembly is also disposed inside the first shell, and the pump chamber is located outside the pump assembly.

4. A fast pressure-building methanol pump as claimed in claim 1, characterized in that: A methanol inlet pipe and a methanol outlet pipe are arranged at one end of the first shell away from the second shell.

5. A fast pressure-building methanol pump as claimed in claim 4, characterized in that: The methanol inlet pipeline is connected to the methanol tank, and the methanol outlet pipeline is connected to the vehicle methanol pipeline.

6. A fast pressure-building methanol pump as claimed in claim 4, characterized in that: The methanol inlet pipe and the methanol outlet pipe are arranged opposite to each other.

7. A fast pressure-building methanol pump as claimed in claim 4, characterized in that: The methanol inlet pipeline and the methanol outlet pipeline are both connected to the pump cavity.

8. A fast pressure-building methanol pump as claimed in claim 1, characterized in that: The rapid pressure building partition is an annular partition used to separate the stator cavity from the pump cavity.

9. A fast pressure-building methanol pump as claimed in claim 4, characterized in that: A methanol inlet one-way valve is arranged at the bottom of the methanol inlet pipeline.

10. A fast pressure-building methanol pump as claimed in claim 1, characterized in that: A stator is placed in the stator cavity.

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