Water circulation stepped utilization device for thermal power plant

Abstract

The utility model relates to the technical field of thermal power plant water circulation, in particular to a thermal power plant water circulation step utilization device which comprises a filter box with a circulation pipe arranged at the bottom end, a mixing box with a plurality of supporting rods arranged at the bottom and a water inlet pipe. The first utilization assembly is used for utilizing power of circulating water to enable the anti-blocking assembly to operate, a stirring assembly is arranged in an inner cavity of the mixing box, the anti-blocking assembly can prevent the filter screen from being blocked when the filter screen works, and the anti-blocking assembly is arranged in the filter box. By arranging the second utilization assembly used for enabling the stirring assembly to operate through the power of the circulating water, stepped utilization of the circulating water can be achieved, energy waste can be avoided to a certain degree, input of a motor can be avoided, cost input can be reduced, and practicability can be improved.

Description

Technical Field

[0001] The utility model relates to the technical field of water circulation in thermal power plants, in particular to a stepped utilization device for water circulation in thermal power plants. Background Art

[0002] The main working principle of a thermal power plant is to utilize hot water after thermal power generation and reheat it for heating. Therefore, the water treatment capacity of a thermal power plant is very large. In order to make full use of water resources, it is often necessary to collect, treat and reuse the water.

[0003] However, the existing water recycling devices still have some shortcomings during use. For example, it is not convenient to utilize the power of the circulating water, which will cause energy waste and reduce the practicality to a certain extent.

[0004] The Chinese patent number is CN202211260066.5, and the patent name is "Thermal Power Plant Water Recycling System", which includes a reclaimed water treatment unit, a sludge conveying unit, a sludge drying unit, an evaporation drying hot air unit, a circulating dehumidification unit and several pipelines arranged in sequence; the reclaimed water treatment unit includes an aerated biological filter, a stirring clarification tank and a clear water tank connected in sequence through pipelines, and the clear water tank is provided with a backwash return port and a clear water outlet, and the clear water outlet is connected to the circulating dehumidification unit through a pipeline; the circulating dehumidification unit includes a cooling water tower and an evaporator, and a cooling water supply channel is provided in the cooling water tower, and the inlet of the cooling water supply channel is connected to the clear water outlet of the clear water tank through a pipeline. This patent uses the sludge and clean water obtained by reclaimed water treatment to improve the utilization rate of reclaimed water, reduce the drying cost of the sludge after reclaimed water treatment, and reduce the moisture content of the dried sludge. However, the problem with the above patent is that it cannot meet the water treatment problem of the thermal power plant, and does not realize the function of cyclic step utilization. Therefore, a thermal power plant water cycle step utilization device is designed. Utility Model Content

[0005] In view of the above problems existing in the prior art, the utility model provides a water circulation step utilization device for a thermal power plant, which can solve the above problems.

[0006] The utility model provides a thermal power plant water circulation step utilization device, and its technical scheme includes: comprising a filter box with a flow pipe at its bottom, a mixing box with a plurality of support rods installed at its bottom, and a water inlet pipe, the inner cavity of the filter box is fixed with a filter screen by screws, the inner cavity of the mixing box is provided with a stirring assembly, and also includes:

[0007] An anti-clogging component capable of preventing the filter from being blocked during operation, and the anti-clogging component is arranged in the filter box;

[0008] A first utilization component for utilizing the power of circulating water to operate the anti-clogging component, and the first utilization component is arranged on the filter box;

[0009] A second utilization component for utilizing the power of the circulating water to operate the stirring component, and the second utilization component is arranged on the mixing box;

[0010] The first utilization component and the second utilization component are both connected to the water inlet pipe.

[0011] As a preferred solution of the thermal power plant water circulation step utilization device described in the utility model, the stirring component includes:

[0012] Support rods, support rods are fixedly installed at both ends of the inner cavity of the mixing box;

[0013] A support block is fixedly installed between two groups of support rods.

[0014] As a preferred solution of the thermal power plant water circulation step utilization device described in the utility model, the stirring component also includes:

[0015] A first rotating shaft, the first rotating shaft is rotatably connected to the support block through a bearing;

[0016] Stirring rods: a plurality of stirring rods are fixedly mounted on the first rotating shaft.

[0017] As a preferred solution of the thermal power plant water circulation step utilization device described in the utility model, the anti-blocking component includes:

[0018] A second rotating shaft, the second rotating shaft is rotatably connected to the top end of the filter box through a bearing;

[0019] A plurality of rotating rods with brush filaments are arranged at the bottom thereof. The rotating rods are fixedly mounted on the bottom of the second rotating shaft, and the brush filaments are in contact with the filter screen.

[0020] As a preferred solution of the water circulation step utilization device of a thermal power plant described in the utility model, wherein: the first utilization component includes a first hard pipe, the first hard pipe is fixedly installed on the side wall of the filter box, one end of the water inlet pipe is fixedly installed with the first hard pipe through a three-way joint, one end of the first hard pipe is provided with a first water wheel, the first hard pipe is provided with a first solenoid valve, and the inner cavity of the first water wheel is fixedly installed with a second rotating shaft.

[0021] As a preferred solution of the thermal power plant water circulation step utilization device described in the utility model, the second utilization component includes:

[0022] a third rotating shaft, the third rotating shaft being rotatably connected to the side wall of the mixing box through a bearing;

[0023] A first belt pulley, wherein the first belt pulley is fixedly mounted on an inner wall of the first belt pulley;

[0024] A second pulley, the first rotating shaft is fixedly mounted on the inner wall of the second pulley, and the first pulley and the second pulley are connected via a belt transmission.

[0025] As a preferred solution of the thermal power plant water circulation step utilization device described in the utility model, the second utilization component also includes:

[0026] A sealing box, wherein the top end of the third rotating shaft is rotatably connected to the sealing box via a bearing;

[0027] A second water wheel is located in the inner cavity of the sealing box, and the second water wheel is fixedly mounted on the top end of the third rotating shaft.

[0028] As a preferred solution of the thermal power plant water circulation step utilization device described in the utility model, the second utilization component also includes:

[0029] An L-shaped hard tube, wherein the L-shaped hard tube is fixedly mounted on the bottom end of the sealing box, and one end of the L-shaped hard tube is fixedly mounted on the side wall of the filter box;

[0030] A second rigid tube, the second rigid tube is fixedly mounted on the side wall of the sealing box, a second water wheel is arranged at one end of the second rigid tube, a second solenoid valve is arranged on the second rigid tube, and the second rigid tube is fixedly mounted at one end of the water inlet pipe through a three-way joint.

[0031] Compared with the prior art, the beneficial effects of the utility model are:

[0032] 1. The utility model is provided with an anti-clogging component, which can prevent the filter from being blocked during operation, thereby preventing the filter from being blocked during operation, thereby preventing the circulation of circulating water from being affected to a certain extent;

[0033] 2. The utility model has the feature of realizing step-by-step utilization of circulating water by providing a first utilization component for utilizing the power of circulating water to operate the anti-clogging component, and a second utilization component for utilizing the power of circulating water to operate the stirring component. This not only avoids energy waste to a certain extent, but also avoids the investment in motors, thereby reducing cost investment and improving practicality. BRIEF DESCRIPTION OF THE DRAWINGS

[0034] Figure 1 This is a schematic diagram of the front view of the structure of the utility model;

[0035] Figure 2 This is a schematic diagram of the structure of the filter box and the mixing box of the utility model;

[0036] Figure 3 It is a top view schematic diagram of the partial structure of the second utilization component of the utility model;

[0037] Figure 4It is a top view schematic diagram of the local structure of the first utilization component of the utility model.

[0038] In the figure: filter box 10, filter screen 11, mixing box 20, support rod 21, support block 22, first rotating shaft 23, stirring rod 24, second rotating shaft 31, first water wheel 32, rotating rod 33, first hard pipe 34, third rotating shaft 41, first pulley 42, second pulley 43, belt 44, sealing box 45, second water wheel 46, L-shaped hard pipe 47, second hard pipe 48, water inlet pipe 50. DETAILED DESCRIPTION

[0039] In order to make the purpose, technical solution and advantages of the present invention more clear, the implementation mode of the present invention will be further described in detail below with reference to the accompanying drawings.

[0040] Example 1, reference Figure 1-Figure 4 The utility model provides a water circulation cascade utilization device for a thermal power plant, including a filter box 10 with a circulation pipe (a solenoid valve is provided on the circulation pipe) at its bottom, a mixing box 20 with a plurality of support rods installed at its bottom, and a water inlet pipe 50. A filter screen 11 is fixedly installed in the inner cavity of the filter box 10 by screws, a stirring assembly is provided in the inner cavity of the mixing box 20, a discharge pipe with a solenoid valve is fixedly installed in the mixing box 20, a feed pipe is fixedly installed on the side wall of the mixing box 20, and the water inlet pipe 50 is connected to the outlet pipe of the thermal power plant, and a booster pump can be provided on the water inlet pipe 50 according to needs.

[0041] It also includes: an anti-clogging component capable of preventing the filter screen 11 from being blocked during operation, a first utilization component for utilizing the power of circulating water to operate the anti-clogging component, and a second utilization component for utilizing the power of circulating water to operate the stirring component;

[0042] The anti-clogging component is arranged in the filter box 10 , the first utilization component is arranged on the filter box 10 , and the second utilization component is arranged on the mixing box 20 . Both the first utilization component and the second utilization component are connected to the water inlet pipe 50 .

[0043] The stirring assembly includes: a support rod 21, a support block 22, a first rotating shaft 23, and a stirring rod 24;

[0044] Support rods 21 are fixedly installed at both ends of the inner cavity of the mixing box 20, and the support block 22 is fixedly installed between the two groups of support rods 21. The first rotating shaft 23 is rotatably connected to the support block 22 through a bearing, which is the bearing in patent CN217736027U. A plurality of stirring rods 24 are fixedly installed on the first rotating shaft 23.

[0045] The anti-blocking assembly includes: a second rotating shaft 31, a rotating rod 33 with a plurality of brushes at the bottom thereof;

[0046] The second rotating shaft 31 is rotatably connected to the top of the filter box 10 through a bearing, and the bearing is the bearing in patent CN217736027U. A rotating rod 33 with a plurality of brush wires is provided at the bottom thereof. The rotating rod 33 is fixedly mounted on the bottom of the second rotating shaft 31, and the brush wires are in contact with the filter screen 11.

[0047] The first utilization component includes a first hard pipe 34, a first water wheel 32, and a first solenoid valve;

[0048] The first hard tube 34 is fixedly mounted on the side wall of the filter box 10, one end of the water inlet pipe 50 is fixedly mounted on the first hard tube 34 through a three-way joint, one end of the first hard tube 34 is provided with a first water wheel 32, the first hard tube 34 is provided with a first solenoid valve, and the inner cavity of the first water wheel 32 is fixedly mounted with a second rotating shaft 31.

[0049] The second utilization assembly includes: a third rotating shaft 41, a first pulley 42, a second pulley 43, a belt 44, a sealing box 45, a second water wheel 46 located in the inner cavity of the sealing box 45, an L-shaped hard pipe 47, and a second hard pipe 48;

[0050] The working process of this utility model is:

[0051] Step 1: The circulating water from the thermal power plant flows into the filter box 10 through the first hard pipe 34 through the first solenoid valve. At this time, the circulating water flowing in will impact one side of the first water wheel 32, so that the second rotating shaft 31 can rotate the rotating rod 33. When the rotating rod 33 rotates, the impurities attached to the filter screen 11 will be knocked away by the brush wire to avoid clogging of the filter screen 11 during operation. After that, the circulating water flowing into the filter box 10 will be filtered by the filter screen 11 and fall into the bottom of the filter box 10;

[0052] Step 2: When the circulating water in the filter box 10 is stored to a certain amount, the circulating water is made to flow into the mixing box 20 through the solenoid valve on the circulation pipe until all the circulating water flows into the mixing box 20, and then the water purifier is added into the mixing box 20 through the feed pipe;

[0053] Step 3: The circulating water from the thermal power plant flows into the filter box 10 through the second solenoid valve through the sealing box 45 and the L-shaped hard pipe 47. When the circulating water passes through the sealing box 45, it will impact one side of the second water wheel 46 to enable the third rotating shaft 41 to rotate. At this time, the rotating third rotating shaft 41 will drive the first rotating shaft 23 to drive the stirring rod 24 to rotate through the first pulley 42, the second pulley 43 and the belt 44 to stir and mix the circulating water and the water purifier. After the mixing is completed, it can flow out through the solenoid valve on the discharge pipe;

[0054] Step 4: Repeat steps 2, 3 and 4 to continuously process the circulating water.

[0055] Embodiment 2, the utility model provides a water circulation cascade utilization device for a thermal power plant, including a filter box 10 with a circulation pipe (a solenoid valve is provided on the circulation pipe) at its bottom, a mixing box 20 with a plurality of support rods installed at its bottom, and a water inlet pipe 50. A filter screen 11 is fixedly installed in the inner cavity of the filter box 10 by screws, a stirring assembly is provided in the inner cavity of the mixing box 20, a discharge pipe with a solenoid valve is fixedly installed in the mixing box 20, a feed pipe is fixedly installed on the side wall of the mixing box 20, and the water inlet pipe 50 is connected to the outlet pipe of the thermal power plant, and a booster pump can be provided on the water inlet pipe 50 as required.

[0056] The difference from Example 1 is:

[0057] The third rotating shaft 41 is rotatably connected to the side wall of the mixing box 20 through a bearing, the first pulley 42 is fixedly installed on the inner wall of the first pulley 42, the first rotating shaft 23 is fixedly installed on the inner wall of the second pulley 43, and the first pulley 42 and the second pulley 43 are connected through a belt 44, and the belt 44 passes through the mixing box 20.

[0058] Embodiment 3, the utility model provides a water circulation cascade utilization device for a thermal power plant, including a filter box 10 with a circulation pipe (a solenoid valve is provided on the circulation pipe) at its bottom, a mixing box 20 with a plurality of support rods installed at its bottom, and a water inlet pipe 50, the inner cavity of the filter box 10 is fixedly installed with a filter screen 11 by screws, the inner cavity of the mixing box 20 is provided with a stirring assembly, a discharge pipe with a solenoid valve is fixedly installed on the mixing box 20, a feed pipe is fixedly installed on the side wall of the mixing box 20, and the water inlet pipe 50 is connected to the outlet pipe of the thermal power plant, and a booster pump can be provided on the water inlet pipe 50 as required.

[0059] The difference from Example 2 is:

[0060] The top end of the third rotating shaft 41 is rotatably connected to the sealing box 45 through a bearing, and the bearing is the bearing in patent CN217736027U. The second water wheel 46 is fixedly mounted on the top end of the third rotating shaft 41, and the L-shaped hard tube 47 is fixedly mounted on the bottom end of the sealing box 45, and one end of the L-shaped hard tube 47 is fixedly mounted on the side wall of the filter box 10.

[0061] Embodiment 4, the utility model provides a water circulation cascade utilization device for a thermal power plant, including a filter box 10 with a circulation pipe (a solenoid valve is provided on the circulation pipe) at its bottom, a mixing box 20 with a plurality of support rods installed at its bottom, and a water inlet pipe 50, the inner cavity of the filter box 10 is fixedly installed with a filter screen 11 by screws, the inner cavity of the mixing box 20 is provided with a stirring assembly, the mixing box 20 is fixedly installed with a discharge pipe with a solenoid valve thereon, the side wall of the mixing box 20 is fixedly installed with a feed pipe, and the water inlet pipe 50 is connected to the outlet pipe of the thermal power plant, and a booster pump can be provided on the water inlet pipe 50 as required.

[0062] The difference from Example 3 is:

[0063] The second hard tube 48 is fixedly mounted on the side wall of the sealing box 45 , and a second water wheel 46 is provided at one end of the second hard tube 48 , a second solenoid valve is provided on the second hard tube 48 , and the second hard tube 48 is fixedly mounted at one end of the water inlet pipe 50 through a three-way joint.

[0064] The working process of the present invention is different from that of Example 1 in that:

[0065] In step three, when the filter 11 is clogged, circulating water can be circulated through the two sets of second hard tubes 48 and the first hard tube 34 to knock away impurities on the filter 11. After this operation is completed, the impurities on the filter 11 can be cleaned.

[0066] Embodiment 5, the utility model provides a water circulation cascade utilization device for a thermal power plant, including a filter box 10 with a circulation pipe (a solenoid valve is provided on the circulation pipe) at its bottom, a mixing box 20 with a plurality of support rods installed at its bottom, and a water inlet pipe 50, the inner cavity of the filter box 10 is fixedly installed with a filter screen 11 by screws, the inner cavity of the mixing box 20 is provided with a stirring assembly, the mixing box 20 is fixedly installed with a discharge pipe with a solenoid valve thereon, the side wall of the mixing box 20 is fixedly installed with a feed pipe, and the water inlet pipe 50 is connected to the outlet pipe of the thermal power plant, and a booster pump can be provided on the water inlet pipe 50 as required.

[0067] The difference from Example 4 is:

[0068] The second water wheels 46 can be designed in multiple groups as needed, which can also meet the use requirements of the utility model.

[0069] Although the present invention has been described above with reference to the embodiments, various modifications may be made thereto and parts thereof may be replaced with equivalents without departing from the scope of the present invention. In particular, as long as there is no structural conflict, the various features in the embodiments disclosed in the present invention may be used in combination with each other in any manner, and the fact that these combinations are not exhaustively described in this specification is only for the sake of omitting space and saving resources. Therefore, the present invention is not limited to the specific embodiments disclosed herein, but includes all technical solutions falling within the scope of the claims.

Claims

1. A water circulation cascade utilization device for a thermal power plant, comprising a filter box (10) with a flow pipe at its bottom, a mixing box (20) with a plurality of support rods installed at its bottom, and a water inlet pipe (50), wherein a filter screen (11) is fixedly installed in the inner cavity of the filter box (10) by screws, and a stirring assembly is provided in the inner cavity of the mixing box (20), characterized in that: Also includes: An anti-clogging component capable of preventing the filter screen (11) from being clogged during operation, and the anti-clogging component is arranged in the filter box (10); A first utilization component for utilizing the power of circulating water to operate the anti-clogging component, wherein the first utilization component is arranged on the filter box (10); A second utilization component for utilizing the power of circulating water to operate the stirring component, and the second utilization component is arranged on the mixing box (20); The first utilization component and the second utilization component are both connected to the water inlet pipe (50).

2. The thermal power plant water circulation cascade utilization device according to claim 1, characterized in that: The stirring assembly comprises: Support rods (21), support rods (21) being fixedly mounted at both ends of the inner cavity of the mixing box (20); A support block (22), wherein the support block (22) is fixedly mounted between the two groups of support rods (21).

3. The thermal power plant water circulation cascade utilization device according to claim 2, characterized in that: The stirring assembly also includes: A first rotating shaft (23), the first rotating shaft (23) being rotatably connected to the support block (22) via a bearing; Stirring rods (24), a plurality of stirring rods (24) are fixedly mounted on the first rotating shaft (23).

4. The thermal power plant water circulation cascade utilization device according to claim 1, characterized in that: The anti-blocking component comprises: a second rotating shaft (31), the second rotating shaft (31) being rotatably connected to the top end of the filter box (10) via a bearing; A plurality of rotating rods (33) with brush filaments are provided at the bottom thereof. The rotating rods (33) are fixedly mounted on the bottom of the second rotating shaft (31), and the brush filaments are in contact with the filter screen (11).

5. The thermal power plant water circulation cascade utilization device according to claim 1, characterized in that: The first utilization component comprises a first hard pipe (34) and a first water wheel (32); the first hard pipe (34) is fixedly mounted on the side wall of the filter box (10); one end of the water inlet pipe (50) is fixedly mounted on the first hard pipe (34) via a three-way joint; one end of the first hard pipe (34) is provided with a first water wheel (32); the first hard pipe (34) is provided with a first solenoid valve; and a second rotating shaft (31) is fixedly mounted in the inner cavity of the first water wheel (32).

6. The thermal power plant water circulation cascade utilization device according to claim 1, characterized in that: The second utilization component comprises: a third rotating shaft (41), the third rotating shaft (41) being rotatably connected to a side wall of the mixing box (20) via a bearing; A first belt pulley (42), the first belt pulley (42) being fixedly mounted on an inner wall of the first belt pulley (42); A second belt pulley (43), the first rotating shaft (23) is fixedly mounted on the inner wall of the second belt pulley (43), and the first belt pulley (42) and the second belt pulley (43) are connected in transmission via a belt (44).

7. The thermal power plant water circulation cascade utilization device according to claim 6, characterized in that: The second utilization component further comprises a sealing box (45), and the top end of the third rotating shaft (41) is rotatably connected to the sealing box (45) via a bearing.

8. The thermal power plant water circulation cascade utilization device according to claim 7, characterized in that: The second utilization component further comprises a second water wheel (46) located in the inner cavity of the sealing box (45), and the second water wheel (46) is fixedly mounted on the top end of the third rotating shaft (41).

9. The thermal power plant water circulation cascade utilization device according to claim 8, characterized in that: The second utilization component also includes: An L-shaped hard tube (47) is fixedly mounted on the bottom end of the sealing box (45), and one end of the L-shaped hard tube (47) is fixedly mounted on the side wall of the filter box (10).

10. The thermal power plant water circulation cascade utilization device according to claim 9, characterized in that: The second utilization component further comprises a second hard tube (48), the second hard tube (48) being fixedly mounted on the side wall of the sealing box (45), and a second water wheel (46) being provided at one end of the second hard tube (48), a second solenoid valve being provided on the second hard tube (48), and the second hard tube (48) being fixedly mounted at one end of the water inlet pipe (50) via a three-way joint.

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