Boiler feed pump with start-stop device

Abstract

The utility model belongs to the technical field of feed pumps, in particular to a boiler feed pump with a start-stop device, which aims at solving the problem of maintenance and comprises a base. A mounting hole is formed in the outer surface of the base; a sliding groove is formed in the upper surface of the base. A threaded rod is rotationally mounted on the inner surface of the base; guide rods are fixedly connected to the two sides of the inner surface of the base; a first motor is fixedly connected to the outer surface of one side of the base. A sliding block is installed on the inner surface of the sliding groove in a sliding mode. A guide thread groove is formed in the outer surface of the sliding block; sliding holes are formed in the two sides of the outer surface of the sliding block. And through the arrangement of the base and the sliding block, the water pump body can be moved under the condition that the base is not detached, the water pump body is more convenient to maintain, and the efficiency is improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to water supply pump technical field especially relates to a boiler water supply pump of configuration start -stop device. BACKGROUND

[0002] The boiler water supply pump is the auxiliary machine of power plant, and the high pressure water supply of boiler, in order to guarantee the normal operation of the boiler water supply pump, need to adopt thrust balancing device to offset the axial thrust generated due to the pressure difference between the pump-in water and the out water. The balancing device of the boiler water supply pump usually adopts the balance disc structure, in order to guarantee the long-term high efficiency operation of the water supply pump of power plant, the start -stop device of the boiler water supply pump is designed, the installation mode of thrust bearing part is adjusted, under the start and shutdown state, the necessary installation gap between the dynamic and static balance disc is kept, thereby guaranteeing that the thrust balancing device can be in time into effect when the sectional pump starts, improve the reliability and stability of sectional pump operation.

[0003] However, the prior art still has some shortcomings, in the prior art, when the boiler water supply pump is maintained, the base or the water pump body needs to be disassembled for maintenance, thereby reducing the maintenance efficiency.

[0004] Therefore, the boiler water supply pump of configuration start -stop device is provided to solve the problem. UTILITY MODEL CONTENTS

[0005] The utility model discloses a kind of boiler water supply pumps of configuration start -stop device to solve the problem proposed in the above background art.

[0006] To achieve the above object, the utility model adopts the following technical scheme:

[0007] A kind of boiler water supply pump of configuration start -stop device, including base;The outer surface of the base is equipped with mounting hole;The upper surface of the base is equipped with sliding slot;The inner surface of the base is rotatably installed with threaded rod;The inner surface of the base both sides are fixed with guide rod;The outer surface of the one side of the base is fixed with No. 1 motor;The inner surface of the sliding slot is slidably installed with sliding block;The outer surface of the sliding block is equipped with guide screw groove;The outer surface both sides of the sliding block are equipped with sliding hole;The upper surface of the sliding block one side is equipped with No. 1 installation slot;The inner surface of No. 1 installation slot is equipped with No. 1 screw groove;The upper surface of the sliding block other side is equipped with No. 2 installation slot;The inner surface of No. 2 installation slot is equipped with No. 2 screw groove;The inner surface of No. 1 installation slot is slidably installed with No. 1 mounting bracket;The inner surface of No. 1 mounting bracket is rotatably installed with No. 1 fixed screw;The outer surface of No. 1 mounting bracket is fixed with water pump body;The outer surface of the one side of the water pump body is fixed with start -stop device body;The inner surface of No. 2 installation slot is slidably installed with No. 2 mounting bracket;The inner surface of No. 2 mounting bracket is rotatably installed with No. 2 fixed screw;The upper surface of No. 2 mounting bracket is fixed with No. 2 motor.

[0008] Preferably, the first fixing screw is rotatably mounted on the inner surface of the first threaded groove; the second fixing screw is rotatably mounted on the inner surface of the second threaded groove.

[0009] Preferably, the first mounting bracket is fixed to the inner surface of the first mounting slot by the first fixing screw; the second mounting bracket is fixed to the inner surface of the second mounting slot by the second fixing screw.

[0010] Preferably, the output end of the No. 1 motor is fixedly connected to one end of the threaded rod; the threaded rod is rotatably mounted on the inner surface of the guide thread groove.

[0011] Preferably, the slider is slidably mounted on the outer circular surface of the guide rod through a sliding hole; the output end of the second motor is fixedly connected to one end of the water pump body.

[0012] In this utility model, a boiler feed pump equipped with a start-stop device is provided. Through the arrangement of a base, mounting hole, motor No. 1, slide groove, threaded rod, guide rod, slider, guide threaded groove, slide hole, threaded groove No. 1, threaded groove No. 2, mounting bracket No. 1, fixing screw No. 1, pump body, start-stop device body, mounting bracket No. 2, fixing screw No. 2, and motor No. 2, when the pump body and motor No. 2 are moved, motor No. 1 is started. Motor No. 1 drives the threaded rod to rotate, and the rotation of the threaded rod drives the slider to move. The movement of the slider drives the pump body and motor No. 2 to move through mounting bracket No. 1 and mounting bracket No. 2. This allows the pump body to be moved without disassembling the base, making it easier to maintain the pump body and improving efficiency.

[0013] In this utility model, a boiler feed pump equipped with a start-stop device improves the stability of the first and second mounting brackets by setting the first and second mounting slots, thereby further improving the stability of the pump body and the second motor.

[0014] This utility model has a reasonable structural design, is simple to operate, and has high reliability. Attached Figure Description

[0015] Fig. 1 This is a three-dimensional structural diagram of a boiler feedwater pump equipped with a start-stop device according to the present invention.

[0016] Fig. 2 This is a three-dimensional structural diagram of the base in this utility model;

[0017] Fig. 3 This is a three-dimensional structural diagram of the slider in this utility model.

[0018] In the diagram: 1. Base; 2. Mounting hole; 3. Motor No. 1; 4. Slide groove; 5. Threaded rod; 6. Guide rod; 7. Slider; 8. Guide threaded groove; 9. Slide hole; 10. Mounting slot No. 1; 11. Threaded groove No. 1; 12. Mounting slot No. 2; 13. Threaded groove No. 2; 14. Mounting bracket No. 1; 15. Fixing screw No. 1; 16. Pump body; 17. Start-stop device body; 18. Mounting bracket No. 2; 19. Fixing screw No. 2; 20. Motor No. 2. Detailed Implementation

[0019] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.

[0020] Reference Figs. 1-3 A boiler feedwater pump equipped with a start-stop device includes a base 1; the outer surface of the base 1 is provided with mounting holes 2; the upper surface of the base 1 is provided with a sliding groove 4; a threaded rod 5 is rotatably mounted on the inner surface of the base 1; guide rods 6 are fixedly connected to both sides of the inner surface of the base 1; a first motor 3 is fixedly connected to one side of the outer surface of the base 1; a slider 7 is slidably mounted on the inner surface of the sliding groove 4; the outer surface of the slider 7 is provided with a guide threaded groove 8; both sides of the outer surface of the slider 7 are provided with sliding holes 9; a first mounting groove 10 is provided on one side of the upper surface of the slider 7; a first threaded groove 11 is provided on the inner surface of the first mounting groove 10; the upper surface of the slider 7... On the other side, there is a second mounting slot 12; the inner surface of the second mounting slot 12 is provided with a second threaded groove 13; the inner surface of the first mounting slot 10 is slidably mounted with a first mounting bracket 14; the inner surface of the first mounting bracket 14 is rotatably mounted with a first fixing screw 15; the outer surface of the first mounting bracket 14 is fixedly connected to a water pump body 16; one outer surface of the water pump body 16 is fixedly connected to a start / stop device body 17; the inner surface of the second mounting slot 12 is slidably mounted with a second mounting bracket 18; the inner surface of the second mounting bracket 18 is rotatably mounted with a second fixing screw 19; the upper surface of the second mounting bracket 18 is fixedly connected to a second motor 20.

[0021] Furthermore, the first fixing screw 15 is rotatably installed on the inner surface of the first threaded groove 11; the second fixing screw 19 is rotatably installed on the inner surface of the second threaded groove 13.

[0022] Furthermore, the first mounting bracket 14 is fixed to the inner surface of the first mounting slot 10 by the first fixing screw 15; the second mounting bracket 18 is fixed to the inner surface of the second mounting slot 12 by the second fixing screw 19.

[0023] Furthermore, the output end of motor 3 is fixedly connected to one end of threaded rod 5; threaded rod 5 is rotatably mounted on the inner surface of guide thread groove 8.

[0024] Furthermore, the slider 7 is slidably mounted on the outer circular surface of the guide rod 6 through the sliding hole 9; the output end of the second motor 20 is fixedly connected to one end of the water pump body 16.

[0025] In this invention, when the pump body 16 and the second motor 20 are moved during use, the first motor 3 is started. The first motor 3 drives the threaded rod 5 to rotate, and the rotation of the threaded rod 5 drives the slider 7 to move. The movement of the slider 7 drives the pump body 16 and the second motor 20 to move through the first mounting bracket 14 and the second mounting bracket 18. This allows the pump body 16 to be moved without disassembling the base 1, making it easier to maintain the pump body 16 and improving efficiency. The setting of the first mounting slot 10 and the second mounting slot 12 improves the stability of the first mounting bracket 14 and the second mounting bracket 18, thereby further improving the stability of the pump body 16 and the second motor 20.

[0026] In the description of this utility model, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", etc., indicating the orientation or positional relationship are based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this utility model and simplifying the description, and are not intended to indicate or imply that the device or component referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model.

[0027] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this utility model, "a plurality of" means two or more, unless otherwise explicitly specified.

[0028] The preferred embodiments of this utility model disclosed above are merely illustrative of the present utility model. These preferred embodiments do not exhaustively describe all details, nor do they limit the utility model to the specific implementations described. Clearly, many modifications and variations can be made based on the content of this specification. This specification selects and specifically describes these embodiments to better explain the principles and practical applications of this utility model, thereby enabling those skilled in the art to better understand and utilize it. This utility model is limited only by the claims and their full scope and equivalents.

Claims

1. A boiler feedwater pump equipped with a start-stop device, characterized in that, Includes a base (1); the outer surface of the base (1) is provided with mounting holes (2); the upper surface of the base (1) is provided with a sliding groove (4); a threaded rod (5) is rotatably mounted on the inner surface of the base (1); guide rods (6) are fixedly connected to both sides of the inner surface of the base (1); a No. 1 motor (3) is fixedly connected to one side of the outer surface of the base (1); a slider (7) is slidably mounted on the inner surface of the sliding groove (4); a guide thread groove (8) is provided on the outer surface of the slider (7); sliding holes (9) are provided on both sides of the outer surface of the slider (7); a No. 1 mounting groove (10) is provided on one side of the upper surface of the slider (7); a No. 1 threaded groove (11) is provided on the inner surface of the No. 1 mounting groove (10); the upper surface of the slider (7) On the other side, there is a second mounting slot (12); the inner surface of the second mounting slot (12) is provided with a second threaded groove (13); the inner surface of the first mounting slot (10) is slidably mounted with a first mounting bracket (14); the inner surface of the first mounting bracket (14) is rotatably mounted with a first fixing screw (15); the outer surface of the first mounting bracket (14) is fixedly connected to a water pump body (16); the outer surface of one side of the water pump body (16) is fixedly connected to a start / stop device body (17); the inner surface of the second mounting slot (12) is slidably mounted with a second mounting bracket (18); the inner surface of the second mounting bracket (18) is rotatably mounted with a second fixing screw (19); the upper surface of the second mounting bracket (18) is fixedly connected to a second motor (20).

2. A boiler feedwater pump equipped with a start-stop device according to claim 1, characterized in that, The first fixing screw (15) is rotatably installed on the inner surface of the first threaded groove (11); the second fixing screw (19) is rotatably installed on the inner surface of the second threaded groove (13).

3. A boiler feedwater pump equipped with a start-stop device according to claim 1, characterized in that, The first mounting bracket (14) is fixed to the inner surface of the first mounting slot (10) by the first fixing screw (15); the second mounting bracket (18) is fixed to the inner surface of the second mounting slot (12) by the second fixing screw (19).

4. A boiler feedwater pump equipped with a start-stop device according to claim 1, characterized in that, The output end of the No. 1 motor (3) is fixedly connected to one end of the threaded rod (5); the threaded rod (5) is rotatably mounted on the inner surface of the guide thread groove (8).

5. A boiler feedwater pump equipped with a start-stop device according to claim 1, characterized in that, The slider (7) is slidably mounted on the outer circular surface of the guide rod (6) through the sliding hole (9); the output end of the second motor (20) is fixedly connected to one end of the water pump body (16).

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