Single-screw expander type flue gas waste heat power generation device

Abstract

The utility model relates to the technical field of waste heat power generation devices, in particular to a single-screw expander type flue gas waste heat power generation device which comprises an installation support, a screw expander is installed on the outer wall of the installation support, and an air inlet and an air outlet are formed in the opposite outer walls of the screw expander. The control panel is arranged to control the temperature sensor to operate, so that the temperature sensor can generate data in real time according to the temperature value of the inner cavity of the heat insulation shell, and the temperature sensor is connected with the screw expander through the connecting piece, so that the temperature sensor can generate the data in real time according to the temperature value of the inner cavity of the heat insulation shell. Meanwhile, the temperature sensor conducts heat to the control panel through a wire, when the set temperature value is reached, the control panel controls the cooling fan to operate, the cooling fan cools the interior of the heat insulation shell, the temperature is controlled to be a certain value, meanwhile, one side of the generator is subjected to heat insulation through the heat insulation shell, and the heat insulation effect is good. The influence of high temperature on the generator is prevented, and the operation effect of the generator is better.

Description

Technical Field

[0001] The utility model relates to the technical field of waste heat power generation devices, in particular to a single screw expander type flue gas waste heat power generation device. Background Art

[0002] The single screw expander is a highly efficient thermal power device that drives the screw rotor to rotate by the volume expansion of the working medium, thereby effectively converting thermal energy into mechanical energy. As an innovative power machine that has made significant technological progress in the 21st century, it has shown a wide range of application potentials in the fields of industrial waste heat recovery, geothermal energy power generation and biomass energy conversion. The expander can not only be directly connected to a generator to generate electricity, but also has the ability to directly drive various mechanical equipment such as pumps and fans;

[0003] However, most of the existing single-screw expanders rely on cooling water for heat dissipation, and there is no gap between the single-screw expander and the generator. The single-screw expander will generate heat during operation, and the generator will also generate heat. The heat of the single-screw expander will cause the ambient temperature to rise, affecting the normal operation of the generator. The high temperature of the generator will cause the insulating material inside the generator to age and burn out, making the equipment unable to work normally or even malfunction. At the same time, high temperature will also cause rotor deformation and bearing damage, thereby affecting the operation quality of the equipment.

[0004] Therefore, a single screw expander type flue gas waste heat power generation device is needed to improve the above problems. Utility Model Content

[0005] The purpose of the utility model is to provide a single screw expander type flue gas waste heat power generation device to solve the problems raised in the above background technology.

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

[0007] A single screw expander type flue gas waste heat power generation device comprises a mounting bracket, a screw expander is mounted on the outer wall of the mounting bracket, an air inlet and an exhaust port are arranged on the opposite outer walls of the screw expander, a connecting piece is installed on the output shaft of the screw expander, and one end of the connecting piece is connected to the driving shaft of a generator, a fixed base is arranged at the bottom of the generator, an insulating shell is installed on one side of the screw expander and on the outer wall of the mounting bracket, a cooling fan is embedded in the outer wall of the insulating shell, a temperature sensor is arranged on the outer wall of the insulating shell, a sensing end of the temperature sensor passes through the insulating shell and extends to the inner cavity of the insulating shell, and a control panel is arranged on the outer wall of the insulating shell.

[0008] As a preferred solution of the utility model, the control panel is conveniently connected to a cooling fan and a temperature sensor through wires and the connection method is electrical connection, and the mounting bracket is located on one side of the fixed base.

[0009] As a preferred solution of the utility model, the output shaft of the screw expander passes through the heat-insulating shell and extends to the outer wall of the heat-insulating shell and is connected to a connecting piece.

[0010] As a preferred solution of the utility model, the connection mode between the output shaft of the screw expander and the heat-insulating shell is a rotational connection.

[0011] As a preferred solution of the utility model, two groups of cooling fans are provided and are respectively located on opposite outer walls of the heat-insulating shell.

[0012] As a preferred solution of the utility model, the temperature sensor is located on one side of the cooling fan, and the air inlet and the air outlet are respectively located on opposite outer walls of the heat-insulating shell.

[0013] Compared with the prior art, the beneficial effects of the utility model are:

[0014] 1. In the utility model, through the heat-insulating shell in the single-screw expander flue gas waste heat power generation device, and using the control panel to control the temperature sensor to operate, the temperature sensor generates data in real time according to the temperature value of the inner cavity of the heat-insulating shell, and at the same time, the temperature sensor is transmitted to the control panel through the wire. When the set temperature value is reached, the control panel controls the cooling fan to operate, so that the cooling fan cools the inside of the heat-insulating shell, so that the temperature is controlled at a certain value. At the same time, the heat-insulating shell insulates one side of the generator to prevent the influence of high temperature on the generator, so that the operation effect of the generator is better, which is beneficial to solve the problem that the heat of the single-screw expander will cause the surrounding ambient temperature to rise and affect the normal operation of the generator. The high temperature of the generator will cause the insulating material inside the generator to age and burn, so that the equipment cannot work normally or even malfunction. At the same time, high temperature will also cause rotor deformation and bearing damage, thereby affecting the operation quality of the equipment. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0016] Figure 2 This is a schematic diagram of the structure of the screw expander of the utility model;

[0017] Figure 3 This is a schematic diagram of the structure of the connecting piece of the utility model.

[0018] In the figure: 1. Mounting bracket; 2. Screw expander; 3. Air inlet; 4. Exhaust port; 5. Connector; 6. Generator; 7. Fixed base; 8. Insulated shell; 9. Cooling fan; 10. Temperature sensor; 11. Control panel. DETAILED DESCRIPTION

[0019] The technical solutions in the embodiments of the utility model will be clearly and completely described below in conjunction with the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the utility model.

[0020] For examples, see Figure 1-3 , the utility model provides a technical solution:

[0021] A single screw expander type flue gas waste heat power generation device comprises a mounting bracket 1, a screw expander 2 is mounted on the outer wall of the mounting bracket 1, an air inlet 3 and an exhaust port 4 are arranged on the opposite outer walls of the screw expander 2, a connecting piece 5 is mounted on the output shaft of the screw expander 2, and one end of the connecting piece 5 is connected to the driving shaft of a generator 6, a fixed base 7 is arranged at the bottom of the generator 6, an insulating shell 8 is mounted on one side of the screw expander 2 and on the outer wall of the mounting bracket 1, a cooling fan 9 is embedded in the outer wall of the insulating shell 8, a temperature sensor 10 is arranged on the outer wall of the insulating shell 8, a sensing end of the temperature sensor 10 passes through the insulating shell 8 and extends to the inner cavity of the insulating shell 8, and a control panel 11 is arranged on the outer wall of the insulating shell 8.

[0022] In this embodiment, please refer to Figure 1 , Figure 2 and Figure 3 The control panel 11 is conveniently connected to the cooling fan 9 and the temperature sensor 10 through wires, and the connection method is electrical connection. The mounting bracket 1 is located on one side of the fixed base 7. The output shaft of the screw expander 2 passes through the insulation shell 8 and extends to the outer wall of the insulation shell 8 and is connected with a connecting piece 5. The output shaft of the screw expander 2 and the insulation shell 8 are connected in a rotating manner. There are two groups of cooling fans 9 and they are respectively located on the opposite outer walls of the insulation shell 8. The temperature sensor 10 is located on one side of the cooling fan 9. The air inlet 3 and the exhaust port 4 are respectively located on the opposite outer walls of the insulation shell 8.

[0023] The working process of the utility model: when the single-screw expander flue gas waste heat power generation device designed by the present invention is working, the control panel 11 is conveniently connected to the cooling fan 9 and the temperature sensor 10 through a wire and the connection method is an electrical connection, so that the device is powered on, and the control panel 11 controls the temperature sensor 10 to operate. When the sensing end of the temperature sensor 10 penetrates the heat-insulating shell 8 and extends to the inner cavity of the heat-insulating shell 8, the temperature sensor 10 generates data in real time according to the temperature value of the inner cavity of the heat-insulating shell 8. At the same time, the temperature sensor 10 is transmitted to the control panel 11 through the wire. When the set temperature value is reached, The control panel 11 controls the cooling fan 9 to operate, so that the cooling fan 9 cools down the inside of the heat-insulating shell 8, so that the temperature is controlled at a certain value. At the same time, the heat-insulating shell 8 insulates one side of the generator 6 to prevent the high temperature from affecting the generator 6, so that the operation effect of the generator 6 is better, which is beneficial to solve the problem that the heat of the single-screw expander will cause the surrounding ambient temperature to rise and affect the normal operation of the generator. The high temperature of the generator will cause the insulating material inside the generator to age and burn, making the equipment unable to work normally or even malfunction. At the same time, the high temperature will also cause the rotor to deform and the bearing to be damaged, thereby affecting the operation quality of the equipment.

[0024] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A single screw expander type flue gas waste heat power generation device, comprising a mounting bracket (1), characterized in that: A screw expander (2) is mounted on the outer wall of the mounting bracket (1), an air inlet (3) and an air outlet (4) are arranged on opposite outer walls of the screw expander (2), a connecting piece (5) is mounted on the output shaft of the screw expander (2), and one end of the connecting piece (5) is connected to the driving shaft of a generator (6), a fixed base (7) is arranged at the bottom of the generator (6), a heat-insulating shell (8) is mounted on one side of the screw expander (2) and on the outer wall of the mounting bracket (1), a cooling fan (9) is embedded in the outer wall of the heat-insulating shell (8), a temperature sensor (10) is arranged on the outer wall of the heat-insulating shell (8), a sensing end of the temperature sensor (10) passes through the heat-insulating shell (8) and extends to the inner cavity of the heat-insulating shell (8), and a control panel (11) is arranged on the outer wall of the heat-insulating shell (8).

2. A single screw expander type flue gas waste heat power generation device according to claim 1, characterized in that: The control panel (11) is conveniently connected to a cooling fan (9) and a temperature sensor (10) via wires and the connection method is electrical connection. The mounting bracket (1) is located on one side of the fixed base (7).

3. The single screw expander type flue gas waste heat power generation device according to claim 1, characterized in that: The output shaft of the screw expander (2) passes through the heat-insulating shell (8) and extends to the outer wall of the heat-insulating shell (8) and is connected to a connecting piece (5).

4. The single screw expander type flue gas waste heat power generation device according to claim 1, characterized in that: The output shaft of the screw expander (2) and the heat-insulating casing (8) are connected in a rotational manner.

5. The single screw expander type flue gas waste heat power generation device according to claim 1, characterized in that: The cooling fans (9) are provided in two groups and are respectively located on opposite outer walls of the heat-insulating shell (8).

6. The single screw expander type flue gas waste heat power generation device according to claim 1, characterized in that: The temperature sensor (10) is located on one side of the cooling fan (9), and the air inlet (3) and the air outlet (4) are respectively located on opposite outer walls of the heat-insulating shell (8).

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