Automatic drainage device for steam backbone network drainage deep well

Abstract

The utility model discloses an automatic drainage device for a steam backbone network drainage deep well. The automatic drainage device comprises a water pumping mechanism and a lifting mechanism used for driving the water pumping mechanism to ascend and descend. The water pumping mechanism comprises a submersible pump, a drainage pipe and a liquid level sensor used for detecting the liquid level of the deep well, and the submersible pump is connected with the drainage pipe; the lifting mechanism is arranged above the water well and comprises a lifting rope, a rope winding roller and a lifting driving mechanism; the lifting rope is wound on the rope winding roller, and the two ends of the lifting rope are fixed to the submersible pump and the rope winding roller respectively. And the rope winding roller is connected with the driving end of the lifting driving mechanism. The automatic drainage device can automatically control the submersible pump and the drain valve to conduct drainage work, and potential safety hazards are reduced; the submersible pump does not need to stay in high-temperature condensate water for a long time, and risks of short circuit and dry burning of the submersible pump are reduced.

Description

Technical Field

[0001] The utility model relates to a steam pipe network system, in particular to an automatic drainage device for a deep well of a steam main network. Background Art

[0002] With the development of the times, energy conservation and consumption reduction have become a consensus among people. In recent years, in order to achieve the goal of energy conservation and emission reduction, governments at all levels from the national to the local have successively issued a series of policy documents to strongly support industrial parks in centralized heating. Under the pressure of energy conservation and emission reduction and the encouragement and support of policy documents, industrial parks have also successively built steam pipelines to meet the heating needs of enterprises in the park.

[0003] In the existing base heating pipeline project, the main network is about 7.5 kilometers long, which is laid in the way of "underground as the main and aerial as the auxiliary" (working pipe diameter is DN600, outer protective pipe diameter is DN1120). The main network transmission medium is superheated steam with a design pressure of 1.6MPa and a temperature of 300℃.

[0004] There are 33 drainage wells along the entire trunk network pipeline, of which No. 12, No. 25 and No. 29 are steel deep well drainage wells with the deepest well reaching 8 meters. The actual work has the following problems:

[0005] 1. Drainage of deep wells at 3 locations often requires manual work to handle submersible pumps and drain valves, which poses a serious safety hazard.

[0006] 2. The condensate from the deep well is drained by manually starting and stopping the submersible pump, but the submersible pump is in high-temperature condensate for a long time, which often causes the submersible pump to have safety hazards such as short circuit and dry burning. Utility Model Content

[0007] The purpose of the utility model is to overcome the above-mentioned problems and provide a steam trunk network deep well automatic drainage device, which can not only automatically control the submersible pump and the drain valve to perform drainage work, reducing safety hazards; but also does not require the submersible pump to be in high-temperature condensate water for a long time, reducing the risk of short circuit and dry burning of the submersible pump.

[0008] The purpose of the utility model is achieved through the following technical solutions:

[0009] An automatic drainage device for deep wells in a steam main network, comprising a pumping mechanism and a lifting mechanism for driving the pumping mechanism to lift and lower;

[0010] The pumping mechanism includes a submersible pump, a drainage pipe, and a liquid level sensor for detecting the liquid level of the deep water well, wherein the submersible pump is connected to the drainage pipe;

[0011] The lifting mechanism is arranged above the water well, and includes a lifting rope, a rope winding roller and a lifting drive mechanism; the lifting rope is wound around the rope winding roller, and the two ends of the lifting rope are respectively fixed on the submersible pump and the rope winding roller; the rope winding roller is connected to the driving end of the lifting drive mechanism.

[0012] The working principle of the above steam main network deep well automatic drainage device is as follows:

[0013] During operation, the liquid level of the deep water well is detected in real time by the liquid level detection sensor. When the liquid level reaches the set position, the lifting drive mechanism drives the rope winding roller to rotate, releases the lifting rope, and controls the submersible pump to descend until the submersible pump enters below the liquid surface of the deep water well, and then automatically drains the water without manual intervention, reducing safety hazards; when the drainage is completed, the lifting drive mechanism drives the rope winding roller to rotate, reels the lifting rope, and controls the submersible pump to rise and return to the initial position, waiting for the next drainage task. Among them, in the non-drainage state, the submersible pump is located above the deep water well. At this time, the submersible pump does not contact the high-temperature condensate, thereby protecting the submersible pump and avoiding safety hazards such as short circuit and dry burning.

[0014] In a preferred embodiment of the utility model, the lifting mechanism further comprises a water pipe reel, which is connected to the driving end of the lifting drive mechanism; the drainage pipe is partially wound around the water pipe reel. Through the above structure, the drainage pipe can be managed neatly and orderly during the lifting process of the submersible pump.

[0015] In a preferred embodiment of the present invention, the lifting drive mechanism further comprises an automatic sealing structure, which comprises a telescopic cover, a telescopic transmission structure and a reset assembly;

[0016] The telescopic cover is arranged on the top surface of the water well through a transverse sliding structure; the top surface of the water well is provided with a lifting avoidance hole for avoiding the lifting of the submersible pump;

[0017] The telescopic transmission structure includes a gear rack structure and a transmission frame; the gear rack structure includes a first gear rack structure and a second gear rack structure; the first gear rack structure includes a first gear and a first rack; the first gear is rotatably connected to the drainage frame, and the first rack is fixedly connected to the telescopic cover plate; the axis of the first gear extends horizontally; the second gear rack structure includes a second gear and a second rack; the second gear is coaxially fixedly connected to the first gear; the second rack is fixed to the lower end of the transmission frame; the upper end of the transmission frame is connected to the lifting rope through a lower limit structure;

[0018] The reset assembly includes a reset push rod and a reset spring. The reset push rod is vertically arranged, the bottom of the reset push rod is fixedly connected to the transmission frame, and the top of the reset push rod passes upward through the mounting portion of the drainage frame; the reset spring is sleeved on the reset push rod, and the two ends of the reset spring are respectively pressed against the mounting portion of the drainage frame and the transmission frame. Through the above structure, in the non-drainage state, the telescopic cover plate covers the lifting avoidance hole of the water well, and the submersible pump is located above the telescopic cover plate; at this time, the reset spring is in a compressed state; when the submersible pump descends, the reset spring synchronously restores the deformation to release potential energy, and drives the transmission frame to move downward; in this process, the second rack located at the lower end of the transmission frame transmits power to the second gear and the first gear, and then drives the telescopic cover plate to move laterally away from the lifting avoidance hole through the first rack, so that the submersible pump passes through the lifting avoidance hole and descends into the water well. When the submersible pump rises, after the submersible pump passes through the lifting avoidance hole, the lower limit structure of the lifting rope approaches the transmission frame and drives it to move upward. During this process, the second rack located at the lower end of the transmission frame transmits power to the second gear and the first gear, and then drives the telescopic cover plate to move horizontally close to the lifting avoidance hole through the first rack until the telescopic cover plate covers the lifting avoidance hole to prevent water vapor in the well from escaping, thereby further protecting structures such as the submersible pump and the lifting mechanism.

[0019] In a preferred embodiment of the utility model, the lifting drive mechanism comprises a lifting drive motor, and the lifting drive motor is fixedly arranged on the drainage frame;

[0020] One end of the rope winding roller is coaxially fixedly connected to the output shaft of the lifting drive motor, and the other end of the rope winding roller is coaxially fixedly connected to the water pipe winding roller; the water pipe winding roller is rotatably connected to the drainage frame. Through the above structure, the lifting rope and the drainage pipe can be wound at the same time under the drive of the same lifting drive motor, and the structure is simple and compact.

[0021] A preferred solution of the utility model further comprises a wire arrangement mechanism, which comprises a wire rod, a wire pulling block and a wire arrangement driving mechanism;

[0022] The conductor rod is transversely arranged on the drainage frame, and the axis of the conductor rod is parallel to the axis of the rope winding roller;

[0023] The rope pulling block is provided with a wire pulling groove; the lifting rope extends from the rope winding roller, passes through the wire pulling groove of the rope pulling block, and then passes around the conductor rod and is fixedly connected to the submersible pump downward;

[0024] The driving end of the wire arrangement driving mechanism is connected to the rope pulling block, and the driving direction of the wire arrangement driving mechanism is parallel to the axis of the conductor rod. Through the above structure, in the process of retracting and releasing the lifting rope, the wire arrangement driving mechanism drives the rope pulling block to move horizontally, so that the lifting rope is arranged on the rope winding roller in an orderly manner to avoid knotting.

[0025] Furthermore, the wire arrangement mechanism further comprises a pipe-push block, on which a pipe-push groove is provided; the pipe-push block is connected to the driving end of the wire arrangement driving mechanism;

[0026] The drain pipe extends from the water pipe reel, passes through the pipe-pushing groove of the pipe-pushing block, and is connected to the submersible pump downward after bypassing the conductor rod. Through the above structure, the drain pipe can be wired.

[0027] Furthermore, the wire-laying drive mechanism includes a wire-laying drive motor and a wire-laying transmission assembly, and the wire-laying drive motor is fixed on the drainage frame; the wire-laying transmission assembly includes a screw and a screw nut, and the screw is a bidirectional screw; the screw nut is provided with two and is respectively connected to the rope-drawing block and the pipe-drawing block.

[0028] A preferred solution of the utility model further comprises a protective cover, which surrounds the submersible pump and the lifting mechanism to further protect the submersible pump and the lifting mechanism.

[0029] Compared with the prior art, the utility model has the following beneficial effects:

[0030] 1. The automatic drainage device of the utility model can detect the liquid level of the deep water well in real time by setting a liquid level sensor. When the liquid level reaches the set position, the submersible pump is lowered into the water through the lifting mechanism to achieve automatic drainage without manual start-up.

[0031] 2. In the non-drainage state, the submersible pump is located above the deep water well. At this time, the submersible pump does not come into contact with the high-temperature condensate water, thereby protecting the submersible pump and avoiding safety hazards such as short circuit and dry burning. BRIEF DESCRIPTION OF THE DRAWINGS

[0032] Figure 1 It is a three-dimensional structural schematic diagram of the actual use state of the steam trunk network deep well automatic drainage device of the utility model.

[0033] Figure 2-3 It is a three-dimensional structural schematic diagram of the steam trunk network deep well automatic drainage device of the utility model in two different states, and the protective cover is hidden in both figures.

[0034] Figure 4 It is a three-dimensional structural schematic diagram of the drainage frame, pumping mechanism and lifting mechanism of the utility model.

[0035] Figure 5 It is a three-dimensional structural schematic diagram of the submersible pump and the automatic sealing structure of the utility model. DETAILED DESCRIPTION

[0036] In order to enable those skilled in the art to better understand the technical solution of the utility model, the utility model is further described below in conjunction with embodiments and drawings, but the implementation methods of the utility model are not limited thereto.

[0037] See also Figure 1 The steam main network deep well automatic drainage device of this embodiment includes a protective cover 1, a drainage frame 2, a pumping mechanism and a lifting mechanism for driving the pumping mechanism to rise and fall; the protective cover 1 surrounds the pumping mechanism and the lifting mechanism to further protect the pumping mechanism and the lifting mechanism.

[0038] See also Figure 1-3 The pumping mechanism includes a submersible pump 3, a drainage pipe 4 and a liquid level sensor (not shown in the figure) for detecting the liquid level of a deep water well 5, and the submersible pump 3 is connected to the drainage pipe 4.

[0039] See also Figure 1-3 The lifting mechanism is arranged above the deep water well 5, and the lifting mechanism includes a lifting rope 6, a rope winding roller and a lifting drive mechanism; the lifting rope 6 is wound on the rope winding roller, and the two ends of the lifting rope 6 are respectively fixed on the submersible pump 3 and the rope winding roller; the rope winding roller is connected to the driving end of the lifting drive mechanism.

[0040] Furthermore, the lifting mechanism further includes a water pipe reel, which is connected to the driving end of the lifting drive mechanism; the drainage pipe 4 is partially wound around the water pipe reel. Through the above structure, the drainage pipe 4 can be managed neatly and orderly during the process of controlling the submersible pump 3 to lift.

[0041] See also Figure 4-5The lifting drive mechanism also includes an automatic sealing structure, which includes a telescopic cover plate 7, a telescopic transmission structure and a reset assembly; the telescopic cover plate 7 is arranged on the top surface of the water well 5 through a lateral sliding structure; the top surface of the water well 5 is provided with a lifting avoidance hole 5-1 due to avoiding the lifting of the submersible pump 3; the telescopic transmission structure includes a gear rack structure and a transmission frame 8; the gear rack structure includes a first gear rack structure and a second gear rack structure; the first gear rack structure includes a first gear 9 and a first rack 10; the first gear 9 is rotatably connected to the drainage frame 2, and the first rack 10 is fixedly connected to the telescopic cover plate 7; the axis of the first gear 9 is horizontal Extension; the second gear rack structure includes a second gear 11 and a second rack 12; the second gear 11 is coaxially fixedly connected to the first gear 9; the second rack 12 is fixed to the lower end of the transmission frame 8; the upper end of the transmission frame 8 is connected to the lifting rope 6 through the lower limit structure; the reset assembly includes a reset push rod 13 and a reset spring 14, the reset push rod 13 is vertically arranged, the bottom of the reset push rod 13 is fixedly connected to the transmission frame 8, and the top of the reset push rod 13 passes upward through the mounting part of the drainage frame 2; the reset spring 14 is sleeved on the reset push rod 13, and the two ends of the reset spring 14 are respectively pressed against the mounting part of the drainage frame 2 and the transmission frame 8. Through the above structure, in the non-drainage state, the telescopic cover 7 covers the lifting avoidance hole 5-1 of the water well 5, and the submersible pump 3 is located above the telescopic cover 7; at this time, the reset spring 14 is in a compressed state; when the submersible pump 3 descends, the reset spring 14 synchronously restores the deformation to release potential energy, driving the transmission frame 8 to move downward; in this process, the second rack 12 located at the lower end of the transmission frame 8 transmits power to the second gear 11 and the first gear 9, and then drives the telescopic cover 7 to move laterally away from the lifting avoidance hole 5-1 through the first rack 10, so that the submersible pump 3 passes through the lifting avoidance hole 5-1 and descends into the water well 5. When the submersible pump 3 rises, after the submersible pump 3 passes through the lifting avoidance hole 5-1, the lower limit structure of the lifting rope 6 approaches the transmission frame 8 and drives it to move upward. During this process, the second rack 12 located at the lower end of the transmission frame 8 transmits power to the second gear 11 and the first gear 9, and then drives the telescopic cover plate 7 to move horizontally close to the lifting avoidance hole 5-1 through the first rack 10 until the telescopic cover plate 7 covers the lifting avoidance hole 5-1 to prevent water vapor in the well 5 from escaping, thereby further protecting the submersible pump 3 and the lifting mechanism and other structures.

[0042] See also Figure 1-3The lifting drive mechanism includes a lifting drive motor 15, which is fixedly arranged on the drainage frame 2; one end of the rope winding roller is coaxially fixedly connected to the output shaft of the lifting drive motor 15, and the other end of the rope winding roller is coaxially fixedly connected to the water pipe winding roller; the water pipe winding roller is rotatably connected to the drainage frame 2. Through the above structure, under the drive of the same lifting drive motor 15, the lifting rope 6 and the drainage pipe 4 can be wound at the same time, and the structure is simple and compact.

[0043] See also Figure 2-4 This embodiment also includes a wire arrangement mechanism, which includes a conductor rod 16, a rope block 17 and a wire arrangement driving mechanism; the conductor rod 16 is horizontally arranged on the drainage frame 2, and the axis of the conductor rod 16 is parallel to the axis of the rope winding roller; the rope block 17 is provided with a wire arrangement groove; the lifting rope 6 extends from the rope winding roller, passes through the wire arrangement groove of the rope block 17, and then passes around the conductor rod 16 and is fixedly connected to the submersible pump 3 downward; the driving end of the wire arrangement driving mechanism is connected to the rope block 17, and the driving direction of the wire arrangement driving mechanism is parallel to the axis of the conductor rod 16. Through the above structure, in the process of retracting and releasing the lifting rope 6, the rope block 17 is driven by the wire arrangement driving mechanism to move horizontally, so that the lifting rope 6 is orderly arranged on the rope winding roller to avoid knotting.

[0044] Furthermore, the cable arrangement mechanism further includes a pipe-pickup block 18, on which a pipe-pickup groove is provided; the pipe-pickup block 18 is connected to the driving end of the cable arrangement driving mechanism; the drainage pipe 4 extends from the water pipe winding roller, passes through the pipe-pickup groove of the pipe-pickup block 18, and then goes around the conductor rod 16 and is connected to the submersible pump 3 downward. With the above structure, the drainage pipe 4 can be cabled.

[0045] Furthermore, the wire-laying drive mechanism includes a wire-laying drive motor 19 and a wire-laying transmission assembly, and the wire-laying drive motor 19 is fixed on the drainage frame 2; the wire-laying transmission assembly includes a screw rod 20 and a screw rod nut, and the screw rod 20 is a bidirectional screw rod 20; the screw rod nut is provided with two and is respectively connected to the rope-drawing block 17 and the pipe-drawing block 18.

[0046] See also Figure 1-3 The working principle of the steam main network deep well automatic drainage device of this embodiment is:

[0047] During operation, the liquid level of the deep water well 5 is detected in real time by the liquid level detection sensor. When the liquid level reaches the set position, the lifting drive mechanism drives the rope winding roller to rotate, and the lifting rope 6 is released, thereby controlling the submersible pump 3 to descend until the submersible pump 3 enters below the liquid surface of the deep water well 5, and then automatically drains the water without manual intervention, thereby reducing safety hazards; when the drainage is completed, the lifting drive mechanism drives the rope winding roller to rotate, and the lifting rope 6 is rolled up, thereby controlling the submersible pump 3 to rise, and return to the initial position, waiting for the next drainage task. Among them, in the non-drainage state, the submersible pump 3 is located above the deep water well 5. At this time, the submersible pump 3 does not contact the high-temperature condensed water, thereby protecting the submersible pump 3 and avoiding safety hazards such as short circuit and dry burning.

[0048] The above is a preferred implementation mode of the present invention, but the implementation mode of the present invention is not limited by the above content. Any other changes, modifications, substitutions, combinations, and simplifications made without departing from the spirit and principle of the present invention should be equivalent replacement methods and are included in the protection scope of the present invention.

Claims

1. A steam main network deep well automatic drainage device, characterized in that: It includes a pumping mechanism and a lifting mechanism for driving the pumping mechanism to lift and lower; The pumping mechanism includes a submersible pump, a drainage pipe, and a liquid level sensor for detecting the liquid level of the deep water well, wherein the submersible pump is connected to the drainage pipe; The lifting mechanism is arranged above the water well, and includes a lifting rope, a rope winding roller and a lifting drive mechanism; the lifting rope is wound around the rope winding roller, and the two ends of the lifting rope are respectively fixed on the submersible pump and the rope winding roller; the rope winding roller is connected to the driving end of the lifting drive mechanism.

2. The steam main network deep well automatic drainage device according to claim 1 is characterized in that: The lifting mechanism also includes a water pipe winding roller, which is connected to the driving end of the lifting drive mechanism; the drainage pipe portion is wound around the water pipe winding roller.

3. The steam main network deep well automatic drainage device according to claim 1 is characterized in that: The lifting drive mechanism also includes an automatic sealing structure, which includes a telescopic cover, a telescopic transmission structure and a reset component; The telescopic cover is arranged on the top surface of the water well through a transverse sliding structure; the top surface of the water well is provided with a lifting avoidance hole for avoiding the lifting of the submersible pump; The telescopic transmission structure includes a gear rack structure and a transmission frame; the gear rack structure includes a first gear rack structure and a second gear rack structure; the first gear rack structure includes a first gear and a first rack; the first gear is rotatably connected to the drainage frame, and the first rack is fixedly connected to the telescopic cover plate; the axis of the first gear extends horizontally; the second gear rack structure includes a second gear and a second rack; the second gear is coaxially fixedly connected to the first gear; the second rack is fixed to the lower end of the transmission frame; the upper end of the transmission frame is connected to the lifting rope through a lower limit structure; The reset assembly includes a reset push rod and a reset spring. The reset push rod is vertically arranged, the bottom of the reset push rod is fixedly connected to the transmission frame, and the top of the reset push rod passes upward through the mounting portion of the drainage frame; the reset spring is sleeved on the reset push rod, and the two ends of the reset spring are respectively pressed against the mounting portion of the drainage frame and the transmission frame.

4. The steam main network deep well automatic drainage device according to claim 2 is characterized in that: The lifting drive mechanism includes a lifting drive motor, which is fixedly arranged on the drainage frame; one end of the rope winding roller is coaxially fixedly connected to the output shaft of the lifting drive motor, and the other end of the rope winding roller is coaxially fixedly connected to the water pipe winding roller; the water pipe winding roller is rotatably connected to the drainage frame.

5. The steam main network deep well automatic drainage device according to claim 1 is characterized in that: It also includes a wire arrangement mechanism, which includes a wire rod, a wire pulling block and a wire arrangement driving mechanism; The conductor rod is transversely arranged on the drainage frame, and the axis of the conductor rod is parallel to the axis of the rope winding roller; The rope pulling block is provided with a wire pulling groove; the lifting rope extends from the rope winding roller, passes through the wire pulling groove of the rope pulling block, and then passes around the conductor rod and is fixedly connected to the submersible pump downward; The driving end of the wire arrangement driving mechanism is connected to the wire pulling block, and the driving direction of the wire arrangement driving mechanism is parallel to the axis of the conductor rod.

6. The steam main network deep well automatic drainage device according to claim 5 is characterized in that: The wire arrangement mechanism further comprises a pipe-push block, on which a pipe-push groove is provided; the pipe-push block is connected to the driving end of the wire arrangement driving mechanism; The drainage pipe extends from the water pipe winding roller, passes through the pipe-pushing groove of the pipe-pushing block, and goes around the conductor rod and then is connected with the submersible pump downward.

7. The steam main network deep well automatic drainage device according to claim 6 is characterized in that: The wire-laying drive mechanism includes a wire-laying drive motor and a wire-laying transmission assembly, wherein the wire-laying drive motor is fixed on a drainage frame; the wire-laying transmission assembly includes a screw and a screw nut, wherein the screw is a bidirectional screw; two screw nuts are provided and are respectively connected to the rope-drawing block and the pipe-drawing block.

8. The steam main network deep well automatic drainage device according to any one of claims 1 to 7, characterized in that: Also included is a protective cover that encloses the submersible pump and the lifting mechanism.

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