High-temperature-resistant screw pump

Abstract

The utility model relates to the field of screw pumps, in particular to a high-temperature-resistant screw pump. The screw pump comprises a motor, a pump body shell and screws, the two screws are rotationally connected into the pump body shell, an output shaft of the motor is connected to one of the screws, gears are fixed to the two screws and meshed with each other, a hollow interlayer is arranged in the shell wall of the pump body shell, and the hollow interlayer is arranged in the pump body shell. The hollow interlayer of the pump body shell is connected to the water pump and the cooling liquid storage box through two pipelines respectively, and the water pump and the cooling liquid storage box are connected together through a pipeline. The cooling liquid in the cooling liquid storage box is conveyed into the hollow interlayer of the pump body shell through the water pump to circulate, so that the temperature of the screw pump during working is effectively reduced, and the service life of the screw pump is prolonged.

Description

TECHNICAL FIELD

[0001] The utility model relates to the field of screw pump especially high temperature resistant screw pump. BACKGROUND

[0002] The double screw pump is composed of two intermeshing screws (also called rotors) and a pump body. The two screws usually have different helical line types, one is a driving screw driven to rotate by a motor, and the other is a driven screw passively rotated by the driving screw. However, the existing screw pump generates high temperature after long time working, but the heat dissipation efficiency of the pump body is low, thereby affecting the service life of the pump body. SUMMARY

[0003] The utility model provides a high temperature resistant screw pump to solve the technical problems described in the background art. The cooling liquid in the cooling liquid storage tank is delivered to the hollow interlayer of the pump body shell by the water pump to circulate, thereby effectively reducing the temperature of the screw pump during working, thereby prolonging the service life.

[0004] The utility model adopts the technical scheme that:

[0005] A high temperature resistant screw pump comprises a motor, a pump body shell and screws. The two screws are rotatably connected in the pump body shell. The output shaft of the motor is connected to one of the screws. Gears are fixed on the two screws. The two gears are intermeshed. A hollow interlayer is arranged in the shell wall of the pump body shell. The hollow interlayer of the pump body shell is connected to a water pump and a cooling liquid storage tank through two pipelines. The water pump and the cooling liquid storage tank are connected through the pipelines.

[0006] Specifically, a plate heat exchanger is connected to the pipe body of the pump body shell.

[0007] Specifically, the motor, the pump body shell and the water pump are fixed on a base.

[0008] Specifically, a support is fixed on the base, and the cooling liquid storage tank is fixed on the support.

[0009] Specifically, a hanging ring is threadedly connected to the motor and the pump body shell.

[0010] The utility model provides a high temperature resistant screw pump. The cooling liquid in the cooling liquid storage tank is delivered to the hollow interlayer of the pump body shell by the water pump to circulate, thereby effectively reducing the temperature of the screw pump during working, thereby prolonging the service life. BRIEF DESCRIPTION OF DRAWINGS

[0011] The utility model will be further described in combination with the drawings and examples.

[0012] Figure 1 is a structural schematic view of the utility model;

[0013] Figure 1. motor, 2. pump body shell, 3. water pump, 4. cooling liquid storage tank, 5. plate heat exchanger,

[0014] 6. base, 7. support, 8. hanging ring. DETAILED DESCRIPTION

[0015] The utility model will be further explained in detail in combination with the drawings. These drawings are all simplified schematic views, only the basic structure of the utility model is schematically shown, therefore it only shows the structure related to the utility model.

[0016] Figure 1 is a structural schematic view of the utility model.

[0017] As shown in the accompanying Figure 1 A high-temperature-resistant screw pump, including motor 1, pump body shell 2, screw, two screws are rotatably connected in pump body shell 2, the output shaft of motor 1 is connected on one of the screws, gear is fixed on both screws, two gears are meshed together, the shell wall of pump body shell 2 is equipped with hollow sandwich, the hollow sandwich of pump body shell 2 is connected on water pump 3 and cooling liquid storage tank 4 through two pipes respectively, water pump 3 and cooling liquid storage tank 4 are connected together through pipe.

[0018] Water pump 3 transports the cooling liquid in cooling liquid storage tank 4 to the hollow sandwich of pump body shell 2, lets the cooling liquid circulate in the hollow sandwich, thereby can effectively reduce the temperature of screw pump.

[0019] Water pump 3 is connected on the pipe body of pump body shell 2 and is connected with plate heat exchanger 5. When water pump 3 draws external liquid into pump body shell 2, the condensation effect of cooling liquid can be improved, and the refrigeration efficiency is improved.

[0020] Motor 1, pump body shell 2, water pump 3 are all fixed on base 6.

[0021] Base 6 is fixed with support 7, and support 7 is fixed with cooling liquid storage tank 4. Support 7 can raise the height of cooling liquid storage tank 4, thereby avoiding interfering with motor 1, pump body shell 2, water pump 3.

[0022] Motor 1 and pump body shell 2 are all screw-connected with hanging ring 8. Hanging ring 8 can conveniently hoist screw pump.

[0023] With the above ideal embodiment of the present application as the inspiration, through the above description, relevant staff can make various changes and modifications without deviating from the technical idea of the present application. The technical scope of the present application is not limited to the content of the specification, and the technical scope must be determined according to the scope of claims.

Claims

1. A high-temperature resistant screw pump, comprising a motor (1), a pump housing (2), and two screws rotatably connected inside the pump housing (2), the output shaft of the motor (1) being connected to one of the screws, and gears fixed on both screws, the two gears meshing together, characterized in that, The shell wall of the pump body shell (2) is provided with a hollow sandwich, and the hollow sandwich of the pump body shell (2) is connected to the water pump (3) and the cooling liquid storage tank (4) through two pipelines respectively.

2. The high-temperature-resistant screw pump according to claim 1, characterized in that: The water pump (3) is connected to the plate heat exchanger (5) connected to the pipe body of the pump body shell (2).

3. The high-temperature-resistant screw pump according to claim 1, characterized in that: The motor (1), the pump body shell (2) and the water pump (3) are all fixed on the base (6).

4. The high-temperature-resistant screw pump according to claim 3, characterized in that: The base (6) is fixed with a support (7), and the cooling liquid storage tank (4) is fixed on the support (7).

5. The high-temperature-resistant screw pump according to claim 1, characterized in that: The motor (1) and the pump body shell (2) are both threadedly connected with a hanging ring (8).

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