Chemical dosing device for thermal power plant

Abstract

The utility model provides a chemical dosing device for a thermal power plant, and mainly relates to the field of chemical dosing equipment for the thermal power plant. A chemical dosing device for a thermal power plant comprises a box body, a first motor is arranged on the top face of the box body, a rotating shaft of the first motor penetrates through the top face of the box body, a connecting plate is installed at the bottom end of the rotating shaft of the first motor, a second motor is installed on the bottom face of the connecting plate, and a lead screw is installed at the bottom end of a rotating shaft of the second motor through a coupler. A connecting block is installed on the periphery of the lead screw in a threaded mode. Compared with the prior art, the medicine mixing device has the advantages of being simple in structure and convenient to use, providing power through the first motor, being capable of driving the stirring rod to rotate so as to stir and mix medicine, providing power through the second motor, being capable of driving the connecting sleeve to move along the stirring rod under the cooperation of the lead screw and the connecting rod, and being good in stirring effect. And the inclination angle of the stirring rod is adjusted, so that the stirring and mixing effects are improved, and convenience is brought to chemical dosing.

Description

Technical Field

[0001] This utility model mainly relates to the field of chemical dosing equipment for thermal power plants, specifically a chemical dosing device for thermal power plants. Background Technology

[0002] A thermal power plant, or coal-fired power plant for short, is a factory that uses combustible materials as fuel to produce electricity. Its basic production process is as follows: when fuel is burned, it heats water to generate steam, which converts the chemical energy of the fuel into heat energy. The steam pressure drives the turbine to rotate, converting the heat energy into mechanical energy. Then, the turbine drives the generator to rotate, converting the mechanical energy into electrical energy.

[0003] Existing chemical dosing equipment used in thermal power plants cannot mix chemicals during the dosing process. The chemicals need to be mixed and prepared in advance, which not only reduces the efficiency of dosing but also causes inconvenience to users. Utility Model Content

[0004] To address the shortcomings of existing technologies, this invention provides a chemical dosing device for thermal power plants. This invention features a simple structure and ease of use. A first motor provides power to rotate a stirring rod, thereby mixing the chemicals. A second motor, in conjunction with a lead screw and connecting rod, moves a connecting sleeve along the stirring rod, adjusting the rod's tilt angle and improving the mixing effect, thus facilitating chemical dosing.

[0005] To achieve the above objectives, this utility model employs the following technical solution:

[0006] A chemical dosing device for thermal power plants includes a housing. A first motor is mounted on the top surface of the housing, and the shaft of the first motor passes through the top surface of the housing. A connecting plate is mounted on the bottom end of the shaft of the first motor. A second motor is mounted on the bottom surface of the connecting plate. A lead screw is mounted on the bottom end of the shaft of the second motor via a coupling. A connecting block is threaded onto the outer circumference of the lead screw. Stirring rods are hinged to both sides of the bottom surface of the connecting plate. A connecting sleeve is slidably mounted on the bottom circumference of each stirring rod. A connecting rod is mounted on one side of each connecting sleeve. Each connecting rod is connected to a connecting block.

[0007] Furthermore, a PLC control box is installed on one side of the enclosure, and the PLC control box includes a PLC control unit, a signal processing unit, and a signal transmission unit.

[0008] Furthermore, a drug inlet pipe is installed on the other side of the box.

[0009] Furthermore, a medicine outlet tube is installed at the bottom of the box.

[0010] Furthermore, support legs are installed on both sides of the bottom surface of the box.

[0011] Further, the bottom end of the screw rod is installed with a limiting block.

[0012] Compared with the prior art, the utility model has the beneficial effects of:

[0013] The utility model discloses simple structure, convenient to use, through the first motor provides power, can drive the stirring rod rotation, and then to the medicine is stirred and mixes, and through the second motor provides power, under the cooperation of the screw rod and the connecting rod, can drive the connecting sleeve along the stirring rod removal, and then adjust the inclination angle of stirring rod, thereby improve the stirring mixing effect, and then bring the convenience to the chemical dosing. BRIEF DESCRIPTION OF DRAWINGS

[0014] BRIEF DESCRIPTION OF DRAWINGS Fig. 1 It is the structure schematic diagram of the utility model;

[0015] BRIEF DESCRIPTION OF DRAWINGS Fig. 2 It is the utility model line connection drawing;

[0016] The reference numerals shown in the drawings: 1, box;2, first motor;3, connecting plate;4, second motor;5, shaft coupling;6, screw rod;7, connecting block;8, stirring rod;9, connecting sleeve;10, connecting rod;11, PLC control box;12, medicine inlet pipe;13, outlet pipe;14, support leg;15, limiting block. DETAILED DESCRIPTION

[0017] The utility model is further explained in combination with the drawings and specific embodiments. It should be understood that these embodiments are only for illustrating the utility model and are not for limiting the scope of the utility model. In addition, it should be understood that after reading the content taught by the utility model, those skilled in the art can make various changes or modifications to the utility model, and these equivalent forms also fall within the scope defined by the present application.

[0018] As Figs. 1-2 The utility model discloses a chemical dosing device for thermal power plant, including box 1, the first motor 2 is arranged on the top surface of box 1, and the first motor 2 is power device, and the power is driven, the rotating shaft of first motor 2 penetrates the top surface of box 2, and the rotating shaft of first motor 2 is installed connecting plate 3, and the bottom surface of connecting plate 3 is installed second motor 4, and the bottom end of the rotating shaft of second motor 4 is installed screw rod 6 through shaft coupling 5, and the outer periphery of screw rod 6 is installed connecting block 7, and the bottom surface both sides of connecting plate 3 are hinged stirring rod 8, and the outer periphery bottom end of each stirring rod 8 is slidably installed connecting sleeve 9, and one side of each connecting sleeve 9 is installed connecting rod 10, and each connecting rod 10 is connected with connecting block 7.

[0019] Specifically, the one side of the box 1 is installed with the PLC control box 11, and the PLC control box 11 comprises a PLC control unit, a signal processing unit and a signal transmission unit.

[0020] Specifically, a drug inlet pipe 12 is installed on the other side of the box 1.

[0021] Specifically, a medicine outlet tube 13 is installed at the bottom of the box 1.

[0022] Specifically, support legs 14 are installed on both sides of the bottom surface of the box 1.

[0023] Specifically, a limiting block 15 is installed at the bottom end of the lead screw 6. The limiting block 15 restricts the connection block 7.

[0024] Example:

[0025] When using this device, the chemicals are first added to the tank 1 through the dosing pipe 12. Then, the first motor 2 is activated by the PLC control box 11. The first motor 2 drives the connecting plate 3 to rotate, which in turn drives the stirring rod 8 to rotate, thereby stirring and mixing the chemicals in the tank 1. Then, the second motor 4 is activated (alternating between forward and reverse rotation), which drives the lead screw 6 to rotate. The rotation of the lead screw 6 causes the connecting block 7 to move along the lead screw 6. The movement of the connecting block 7 causes the connecting sleeve 9 to move along the corresponding stirring rod 8. With the support of the connecting rod 10, the two stirring rods 8 swing around the hinge point, thereby improving the stirring effect.

[0026] This invention has a simple structure and is easy to use. Powered by a first motor, it can drive the stirring rod to rotate, thereby stirring and mixing the medicine. Powered by a second motor, and with the cooperation of a lead screw and a connecting rod, it can drive the connecting sleeve to move along the stirring rod, thereby adjusting the tilt angle of the stirring rod, thus improving the stirring and mixing effect and making chemical dosing more convenient.

[0027] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this utility model, and not to limit it. Although this utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of this utility model.

Claims

1. A chemical dosing device for thermal power plants, comprising a housing (1), characterized in that: A first motor (2) is installed on the top surface of the box (1). The shaft of the first motor (2) passes through the top surface of the box (1). A connecting plate (3) is installed at the bottom end of the shaft of the first motor (2). A second motor (4) is installed on the bottom surface of the connecting plate (3). A lead screw (6) is installed at the bottom end of the shaft of the second motor (4) through a coupling (5). A connecting block (7) is threaded on the outer circumference of the lead screw (6). A stirring rod (8) is hinged to both sides of the bottom surface of the connecting plate (3). A connecting sleeve (9) is slidably installed at the bottom end of the outer circumference of each stirring rod (8). A connecting rod (10) is installed on one side of each connecting sleeve (9). Each connecting rod (10) is connected to the connecting block (7).

2. The chemical dosing device for thermal power plants according to claim 1, characterized in that: A PLC control box (11) is installed on one side of the enclosure (1). The PLC control box (11) includes a PLC control unit, a signal processing unit, and a signal transmission unit.

3. A chemical dosing device for thermal power plants according to claim 2, characterized in that: The medicine inlet pipe (12) is installed on the other side of the box (1).

4. A chemical dosing device for thermal power plants according to claim 1, characterized in that: The bottom of the box (1) is equipped with a drug outlet tube (13).

5. A chemical dosing device for thermal power plants according to claim 1, characterized in that: Support legs (14) are installed on both sides of the bottom surface of the box (1).

6. A chemical dosing device for thermal power plants according to claim 1, characterized in that: A limiting block (15) is installed at the bottom end of the lead screw (6).

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