A sewage interception device for a pumped storage power station

Abstract

The present invention discloses a sewage interception device for a pumped storage power station, comprising a circulating chain grille, a guide wheel group, a garbage receiving device, a cleaning device, a sewage interception support trough device and a supporting frame. The supporting frame is fixedly installed on both sides of a water flow channel, the sewage interception support trough device is arranged on both sides of the water flow channel, and the garbage receiving device and the cleaning device are fixedly connected to the supporting frame and are located downstream of the sewage interception support trough device. The present invention provides a circulating chain grille, and the driving device drives the circulating chain grille to circulate through a dumping area, a cleaning area and a working area. Through a step-by-step circulating motion, the dirt accumulated on the circulating chain grille is dumped, and the circulating chain grille is simply cleaned, thereby realizing a circulating chain grille.

Description

Technical Field

[0001] The invention relates to the technical field of pumped storage power stations, in particular to a pollution interception device for a pumped storage power station. Background Art

[0002] After long-term use, the water quality of the reservoir in the pumped storage power station is seriously polluted. Not only is the bottom of the reservoir covered with moss, but there are also a lot of debris on both sides of the reservoir. The reservoir is a daily regulation reservoir, and the water level changes greatly every day. Every time the unit generates electricity, as the water level changes, the moss on the bottom of the reservoir and the debris on both sides flow to the water inlet of the generator set as the water level changes up and down. The trash rack is overloaded with a large amount of floating objects and moss, which has threatened the safe operation of the unit. When cleaning the debris on the trash rack, the unit must be shut down for cleaning. Not only is the staff responsible for cleaning the generator set at risk, but the shutdown of the generator set also causes serious economic losses to the manufacturer. Summary of the invention

[0003] The present invention mainly solves the technical problems existing in the prior art, thereby providing a pumped storage power station pollution interception device capable of automatically cleaning the pollution interception device.

[0004] The above technical problems of the present invention are mainly solved by the following technical solutions:

[0005] A sewage interception device for a pumped storage power station of the present invention comprises the following components:

[0006] Circulating chain grille, the grille net on the circulating chain grille is used to block dirt, and the power device can drive the chain grille to move through the dumping area, cleaning area and working area;

[0007] Guide wheel set for guiding the endless chain grate to the dumping area, washing area and working area;

[0008] A garbage receiving device, located in the dumping area, is used to receive the garbage caught on the chain grate;

[0009] A cleaning device, located in the cleaning area, for cleaning the grille components on the chain grille;

[0010] A dirt-blocking support trough device is longitudinally arranged in the water flow channel, and one of the chain grilles is used to be clamped on the dirt-blocking support device to intercept dirt in the water flow;

[0011] A support frame for mounting and fixing guide wheel sets, garbage receiving devices, and cleaning devices;

[0012] The support frame is fixedly installed on both sides of the water flow channel, the dirt blocking support trough device is arranged on both sides of the water flow channel, and the garbage receiving device and the cleaning device are fixedly connected to the support frame and are located downstream of the dirt blocking support trough device.

[0013] Furthermore, the circulating chain grille comprises at least three groups of chain grilles connected in a cycle in sequence, and the chain grille comprises grille assemblies and chain frame assemblies connected in sequence. The power device can drive the chain grille to move in steps, circulating through the dumping area, the cleaning area and the working area. When the circulating chain grille is in a stepping position, one group of grille assemblies is in the working area, one group of grille assemblies is in the dumping area, and one group of grille assemblies is in the cleaning area.

[0014] Furthermore, the circulating chain grille includes three groups of chain grilles, and the chain grille includes two groups of circulating chains and three groups of grille bars. The two groups of circulating chains are respectively connected to the two ends of a group of grille bars, and a group of the grille bars forms a grille net. The grille net and the circulating chains on both sides constitute a grille assembly, and the circulating chains between adjacent grille assemblies constitute a chain frame assembly.

[0015] Furthermore, the cross-section of the grille bar is an L-shaped structure, including a grille portion and a support portion. When the grille assembly is in the working area, the protruding end of the support portion is inclined upward.

[0016] Further, the cleaning device is arranged at the downstream direction of the dirt blocking support trough device, the garbage receiving device is arranged above the cleaning device, the guide wheel group includes first to eighth guide wheel groups, the first guide wheel group is arranged at the bottom of the dirt blocking support device, the second guide wheel group and the eighth guide wheel group are arranged on the upper part of the dirt blocking support device, the third guide wheel group is arranged above the garbage receiving device, the fourth guide wheel group is arranged on the outside of the garbage receiving device, the fifth guide wheel group is arranged below the fourth guide wheel group, the sixth guide wheel group and the seventh guide wheel group are arranged in the cleaning device, and the circulating chain grille circulates through the first to eighth guide wheel groups in sequence.

[0017] Furthermore, the garbage receiving device comprises a garbage collecting frame, which is arranged below the third guide wheel group and is inclined toward the outside of the water flow channel.

[0018] Furthermore, the cleaning device includes a cleaning tank, both sides of which are connected to a supporting frame, one side of the cleaning tank is provided with a water inlet that can be opened or closed, and both sides of the cleaning tank are provided with cleaning mounting plates, one end of the two cleaning mounting plates are respectively connected to the two ends of the sixth guide wheel group, and the other ends of the two cleaning mounting plates are respectively connected to the two ends of the seventh guide wheel group, and multiple groups of cleaning rollers are installed between the two cleaning mounting plates, the cleaning drive device drives the cleaning rollers to rotate, and the circulating chain grille passes between the two cleaning rollers.

[0019] Furthermore, the cleaning tank is connected to the support frame via a first lifting device, a first pre-tightening roller is provided between the sixth guide wheel group and the seventh guide wheel group, and the first pre-tightening roller is connected to the support frame via a first elastic pre-tightening device.

[0020] Furthermore, a vibration device is installed on the garbage receiving device.

[0021] Furthermore, the vibration device includes a second lifting device and a water wheel device; the water wheel device is connected to the supporting frame through the second lifting device, the water wheel device includes a water wheel shaft, and a water wheel and a first sprocket arranged on the water wheel shaft, the mounting plates at both ends of the water wheel shaft are connected to the lifting rod in the second lifting device, a vibration roller is also installed above the circulating chain grid between the third guide wheel group and the fourth guide wheel group, a second elastic pre-tightening device is installed on the supporting frame between the garbage receiving device and the vibration device, a second pre-tightening roller is installed on the protruding end of the second elastic pre-tightening device, and the first sprocket, the vibration roller and the second pre-tightening roller are connected by a chain.

[0022] The present invention sets a circulating chain grille, and a driving device drives the circulating chain grille to circulate through a dumping area, a cleaning area and a working area. Through a step-by-step circulating motion, dirt accumulated on the circulating chain grille is dumped and the circulating chain grille is simply cleaned, thereby realizing the circulating chain grille. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0024] Figure 1 It is a structural schematic diagram of a sewage interception device for a pumped storage power station of the present invention;

[0025] Figure 2 It is a structural schematic diagram of the circulating chain grille in the present invention;

[0026] Figure 3 is a cross-sectional view of a grid bar in the present invention;

[0027] Figure 4 It is a schematic diagram of the mechanism of the guide wheel assembly in the present invention;

[0028] Figure 5 It is a structural schematic diagram of the garbage receiving device in the present invention;

[0029] Figure 6It is a structural schematic diagram of the side surface of the garbage receiving device in the present invention;

[0030] Figure 7 It is a schematic diagram of the structure of the cleaning device in the present invention;

[0031] Figure 8 It is a structural schematic diagram of the vibration device in the present invention. DETAILED DESCRIPTION

[0032] The preferred embodiments of the present invention are described in detail below in conjunction with the accompanying drawings so that the advantages and features of the present invention can be more easily understood by those skilled in the art, thereby making a clearer and more definite definition of the protection scope of the present invention.

[0033] See also Figure 1 As shown, a sewage interception device for a pumped storage power station of the present invention comprises the following components:

[0034] Circulating chain grille A, the grille net on the circulating chain grille A is used to block dirt, and the power device can drive the chain grille to move, circulating through the dumping area, the cleaning area and the working area; the power device is not shown in the figure, and the power device can use a stepper motor and a reducer to drive the circulating chain grille A to perform stepping movement.

[0035] Guide wheel group B, used to guide the circulating chain screen to the dumping area, washing area and working area;

[0036] The garbage receiving device C is located in the dumping area and is used to receive the dirt blocked by the chain grille; and it is convenient for the staff to clean up the garbage in the garbage receiving device.

[0037] The cleaning device D is located in the cleaning area and is used to simply clean the grille components on the chain grille. Since the circulating chain grille A is repeatedly used, the cleaning device D does not need to be very complicated and can be cleaned with a brush roller. The water in the cleaning device can directly use the water after passing through the sewage interception device, but the water after cleaning cannot be discharged back into the water flow after the sewage interception device.

[0038] The dirt-blocking support trough device E is longitudinally arranged in the water flow channel, and one of the chain grilles is used to be clamped on the dirt-blocking support device to intercept dirt in the water flow; the dirt-blocking support trough device E is used to support the circulating chain grille A in the dirt-blocking state to prevent the chain grille from being bent laterally due to the action of the water flow.

[0039] Support frame F, used for installing and fixing guide wheel set B, garbage receiving device C, and cleaning device D;

[0040] The support frame F is fixedly installed on both sides of the water flow channel, the dirt blocking support trough device E is arranged on both sides of the water flow channel, and the garbage receiving device C and the cleaning device D are fixedly connected to the support frame F and are located downstream of the dirt blocking support trough device E.

[0041] Through the above arrangement, when water flows through the circulating chain grille A in the trash-blocking support trough device E, the dirt is blocked, and slightly cleaner water flows downstream to generate electricity. When the blocked dirt is large and affects the filtration efficiency, the power device can start to drive the circulating chain grille A to circulate, and the circulating chain grille A in the trash-blocking support trough device E is driven to the garbage receiving device C to dump the dirt, while the circulating chain grille A at the cleaning device D is driven to the position of the trash-blocking support trough device E to continue to block the dirt, and the circulating chain grille A at the original garbage receiving device C is driven to the cleaning device D for simple cleaning.

[0042] Since the entire chain of the circulating chain grating A is made into a grating form, the cost is high and the weight is huge, and the driving device requires a large power, in order to reduce the cost and reduce the required driving force. Figure 2 As shown, the circulating chain grille A comprises at least three groups of chain grilles 11 which are connected in a circular manner, and the chain grille 11 comprises a grille assembly 111 and a chain frame assembly 112 which are connected in a circular manner. The power device can drive the chain grille 11 to move in a stepping manner, and circulate through the dumping area, the cleaning area and the working area. When the circulating chain grille A is in a stepping position, one group of grille assemblies 111 is in the working area, one group of grille assemblies 111 is in the dumping area, and one group of grille assemblies 111 is in the cleaning area. By setting three groups of chain grilles. By setting only at least three groups of chain grilles 11, and only the grille assembly 111 in each group of chain grilles 11 is used as a grille net of a dirt-blocking device, and the chain frame assembly 112 is only used to connect adjacent grille assemblies 111, the cost and weight of the circulating chain grille A are at least reduced by half.

[0043] The circulating chain grille A comprises three groups of chain grilles 11. The specific structure of the chain grille 11 comprises two groups of circulating chains 1111 and three groups of grille bars 1112. The two groups of circulating chains 1111 are respectively connected to the two ends of a group of grille bars 1112. A group of the grille bars 1112 forms a grille net. The grille net and the circulating chains 1111 on both sides constitute a grille assembly 111. The circulating chains 1111 between adjacent grille assemblies 111 constitute a chain frame assembly 112. By setting the grille bars 1112, the meshes in the grille bars 1112 can filter dirt, and the two ends of the grille bars 1112 are connected to the chain of the circulating chain 1111 to realize chain conveying.

[0044] See also Figure 3As shown, the cross section of the grille bar 1112 is an L-shaped structure, including a grille portion 1112a and a support portion 1112b. When the grille assembly is in the working area, the extended end of the support portion 1112b is tilted upward. The grille has an opening for filtering water flow and blocking dirt. The support portion 1112b is used to lift the accumulated dirt to the position of the garbage receiving device C when the circulating chain grille A moves toward the garbage receiving device C.

[0045] See also Figure 1 , Figure 4 As shown, the cleaning device D is arranged at the downstream direction of the dirt-blocking support trough device E, the garbage receiving device C is arranged above the cleaning device D, the guide wheel group B includes the first to eighth guide wheel groups (21-28), the first guide wheel group 21 is arranged at the bottom of the dirt-blocking support device E, the second guide wheel group 22 and the eighth guide wheel group 28 are arranged on the upper part of the dirt-blocking support device E, the third guide wheel group 23 is arranged above the garbage receiving device C, the fourth guide wheel group 24 is arranged on the outside of the garbage receiving device C, the fifth guide wheel group 25 is arranged below the fourth guide wheel group, the sixth guide wheel group 26 and the seventh guide wheel group 27 are arranged in the cleaning device D, and the circulating chain grille A circulates through the first to eighth guide wheel groups (21-28) in sequence; the power device drives the circulating chain grille A to move between each guide wheel group B, and the guide wheel group B guides the grille assembly 111 in the circulating chain grille A to the dirt-blocking support trough device E, the garbage receiving device C and the cleaning device D. In order to make the circulating chain grating A stable during the conveying process and prevent it from bending due to the effect of gravity, a plurality of groups of supporting rollers can be arranged on the circulating chain grating A line.

[0046] See also Figure 5 As shown, Figure 6 As shown, the garbage receiving device C includes a garbage collection frame 31, which is arranged below the third guide wheel group 23, and the garbage collection frame 31 is inclined to the outside of the water flow channel. When the grille assembly 111 reaches the third guide wheel group 23 and flips over, the dirt on the grille assembly 111 flips over and dumps into the garbage collection frame 31, and the garbage with water in the garbage collection frame slides outward in the inclined garbage collection frame 31 and slides into the garbage collection area. The garbage collection area can be cleaned regularly. The garbage collection frame 31 can also be set as a pull-out structure, and when the garbage collection frame 31 is full of garbage, the garbage collection frame 31 can be pulled out for cleaning.

[0047] See also Figure 7As shown, the cleaning device D includes a cleaning tank 41, both sides of which are connected to the support frame F, and one side of the cleaning tank 41 is provided with a water inlet 42 that can be opened or closed, and a finer grille can also be provided at the water inlet 42 to simply filter the water, and cleaning mounting plates 43 are provided on both sides of the cleaning tank 41, one end of the two cleaning mounting plates 43 is respectively connected to the two ends of the sixth guide wheel group 26, and the other ends of the two cleaning mounting plates 43 are respectively connected to the two ends of the seventh guide wheel group 27, and multiple groups of cleaning rollers 44 are also installed between the two cleaning mounting plates 43, and the cleaning drive device (not shown in the figure) drives the cleaning rollers 44 to rotate, and the circulating chain grille A passes between the two cleaning rollers 44. When the grille assembly 111 moves toward the cleaning tank 41, the water inlet 42 is opened, and some filtered water is put into the cleaning tank 41, and the water inlet 42 is closed, and the cleaning drive device (not shown in the figure) drives the cleaning rollers 44 to rotate, and simply cleans the dirt left on the grille assembly 111. After cleaning is completed, just dump the wastewater after cleaning. Please note that it is best not to pour the wastewater after cleaning back into the water flow.

[0048] Preferably, the cleaning tank 41 is connected to the support frame F through a first lifting device 45. The first lifting device 45 can be lifted by a screw nut. The bottom of the nut is connected to the cleaning tank 41 through a connecting rod. The screw nut needs to be installed in a sealed manner to prevent dirt from entering. A first pre-tightening roller 46 is provided between the sixth guide wheel group 26 and the seventh guide wheel group 27. The first pre-tightening roller 46 is connected to the support frame F through a first elastic pre-tightening device 47. The elastic pre-tightening device 47 can use a torsion spring as the pre-tightening power, or a compression spring as the pre-tightening power. The prior art is relatively large and will not be described in detail. When the first lifting device 45 drives the cleaning tank 41 to rise and fall, the first elastic pre-tightening device 47 is compressed or stretched, and the circulating chain grille A is continued to be pre-tightened through the first pre-tightening roller 46. By driving the cleaning tank 41 to rise and fall, the entire cleaning device D can be driven to rise and fall. When cleaning is required, the first lifting device 45 drives the cleaning tank 41 to descend into the water surface to collect water. After cleaning is completed, the first lifting device 45 drives the cleaning tank 41 to rise, which is convenient for dumping sewage.

[0049] To improve the efficiency of dumping waste, see Figure 8 As shown, a vibration device 32 is also installed on the garbage receiving device C. When the grille assembly 111 moves to the position of the garbage receiving device C, the vibration device 32 vibrates the grille assembly 111 to allow the dirt stuck on the grille assembly 111 to enter the garbage receiving device C.

[0050] Preferably, the vibration device 32 includes a second lifting device 321 and a water wheel device 322; the water wheel device 322 is connected to the support frame F through the second lifting device 321, the water wheel device 322 includes a water wheel shaft 3221, and a water wheel 3222 and a first sprocket 3223 inserted on the water wheel shaft 3221, the mounting plates at both ends of the water wheel shaft 3221 are connected to the lifting rods in the second lifting device 321, a vibration roller 323 is also installed above the circulating chain grille A between the third guide wheel group 23 and the fourth guide wheel group 24, a second elastic pre-tightening device 33 is installed on the support frame F between the garbage receiving device C and the vibration device 32, a second pre-tightening roller 34 is installed at the protruding end of the second elastic pre-tightening device 33, and the first sprocket 3223, the vibration roller 323 and the second pre-tightening roller 34 are connected by a chain 35. When the second lifting device 321 drives the water wheel device 322 to descend and contact the water flow, the water wheel 3222 rotates to drive the first sprocket 3223 to rotate, thereby driving the vibration roller 323 to rotate to vibrate the grille assembly 111, and the second elastic pre-tightening device 33 and the second pre-tightening roller 34 are used to pre-tighten the chain 35 when the second lifting device 321 is raised and lowered.

[0051] The above is only a specific embodiment of the present invention, but the protection scope of the present invention is not limited thereto. Any changes or substitutions that are not conceived through creative work should be included in the protection scope of the present invention. Therefore, the protection scope of the present invention should be based on the protection scope defined in the claims.

Claims

1. A pollution interception device for a pumped storage power station, characterized in that: Includes the following components: Circulating chain screen, the screen mesh on the circulating chain screen is used to block dirt, and the power device can drive the chain screen to move through the dumping area, cleaning area and working area; Guide wheel set for guiding the endless chain grate to the dumping area, washing area and working area; A garbage receiving device, located in the dumping area, is used to receive the garbage caught on the chain grate; A cleaning device, located in the cleaning area, for cleaning the grille components on the chain grille; A dirt-blocking support trough device is longitudinally arranged in the water flow channel, and one of the chain grilles is used to be clamped on the dirt-blocking support trough device to intercept dirt in the water flow; A support frame for mounting and fixing guide wheel sets, garbage receiving devices, and cleaning devices; The support frame is fixedly installed on both sides of the water flow channel, the dirt blocking support groove device is arranged on both sides of the water flow channel, and the garbage receiving device and the cleaning device are fixedly connected to the support frame and are located downstream of the dirt blocking support groove device; The circulating chain grille comprises at least three groups of chain grilles which are cyclically connected in sequence, the chain grille comprises grille components and chain frame components which are connected in sequence, the power device can drive the chain grille to move in steps, circulate through the dumping area, the cleaning area and the working area, when the circulating chain grille is in a stepping position, one group of grille components is in the working area, one group of grille components is in the dumping area, and one group of grille components is in the cleaning area; The circulating chain grille comprises three groups of chain grilles, and the chain grille comprises two groups of circulating chains and three groups of grille bars, the two groups of circulating chains are respectively connected to the two ends of a group of grille bars, and a group of grille bars forms a grille net, the grille net and the circulating chains on both sides constitute a grille assembly, and the circulating chains between adjacent grille assemblies constitute a chain frame assembly; The cross section of the grille bar is an L-shaped structure, including a grille portion and a support portion, and when the grille assembly is in the working area, the extended end of the support portion is inclined upward; The cleaning device is arranged at the downstream direction of the dirt-blocking support trough device, the garbage receiving device is arranged above the cleaning device, the guide wheel group includes the first to eighth guide wheel groups, the first guide wheel group is arranged at the bottom of the dirt-blocking support trough device, the second guide wheel group and the eighth guide wheel group are arranged at the upper part of the dirt-blocking support trough device, the third guide wheel group is arranged above the garbage receiving device, the fourth guide wheel group is arranged outside the garbage receiving device, the fifth guide wheel group is arranged below the fourth guide wheel group, the sixth guide wheel group and the seventh guide wheel group are arranged in the cleaning device, and the circulating chain grille circulates through the first to eighth guide wheel groups in sequence.

2. The pollution interception device of the pumped storage power station according to claim 1 is characterized in that: The garbage receiving device comprises a garbage collecting frame, which is arranged below the third guide wheel group and is inclined toward the outside of the water flow channel.

3. The pollution interception device of the pumped storage power station according to claim 2 is characterized in that: The cleaning device includes a cleaning tank, both sides of which are connected to a supporting frame, one side of the cleaning tank is provided with a water inlet that can be opened or closed, cleaning mounting plates are provided on both sides of the cleaning tank, one end of the two cleaning mounting plates are respectively connected to the two ends of the sixth guide wheel group, and the other ends of the two cleaning mounting plates are respectively connected to the two ends of the seventh guide wheel group, and multiple groups of cleaning rollers are installed between the two cleaning mounting plates, the cleaning drive device drives the cleaning rollers to rotate, and the circulating chain grille passes between the two cleaning rollers.

4. The pollution interception device of the pumped storage power station according to claim 3 is characterized in that: The cleaning tank is connected to the support frame via a first lifting device, a first pre-tightening roller is provided between the sixth guide wheel group and the seventh guide wheel group, and the first pre-tightening roller is connected to the support frame via a first elastic pre-tightening device.

5. The pollution interception device of the pumped storage power station according to claim 4 is characterized in that: The garbage receiving device is also equipped with a vibration device.

6. The pollution interception device of the pumped storage power station according to claim 5, characterized in that: The vibration device includes a second lifting device and a water wheel device; the water wheel device is connected to the supporting frame through the second lifting device, the water wheel device includes a water wheel shaft, and a water wheel and a first sprocket wheel passing through the water wheel shaft, the mounting plates at both ends of the water wheel shaft are connected to the lifting rod in the second lifting device, a vibration roller is also installed above the circulating chain grid between the third guide wheel group and the fourth guide wheel group, a second elastic pre-tightening device is installed on the supporting frame between the garbage receiving device and the vibration device, a second pre-tightening roller is installed at the protruding end of the second elastic pre-tightening device, and the first sprocket wheel, the vibration roller and the second pre-tightening roller are connected by a chain.

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