Ecological rainwater recycling device for subway platform

Abstract

The utility model provides a subway platform rainwater ecological recycling device which comprises a water inlet tank, a filter tank is arranged on one side of the water inlet tank, and a water storage tank is arranged on one side of the filter tank. According to the ecological rainwater recycling device for the subway platform, the grating, the filter plate, the filter tank, the water storage tank and other structures are arranged, the grating serves as a first defense line to intercept large-size impurities and prevent the large-size impurities from entering the device to cause blockage, the filter plate further filters small-particle impurities, and a multi-stage filter layer in the filter tank deeply purifies rainwater and removes various pollutants; in addition, a sliding groove, a floating plate, an ejector pin, a button and an alarm in the water storage tank form a water level monitoring and alarming system, the water level can be monitored in real time, early warning can be conducted in time when the water level is abnormal, water tank overflowing and other accidents can be avoided, rainwater resources are effectively utilized, urban tap water is saved, and the environment is protected. And the water consumption cost of subway operation is also reduced.

Description

TECHNICAL FIELD

[0001] The utility model relates to rainwater ecological utilization technical field more specifically, relate to a subway platform rainwater ecological recycling device. BACKGROUND

[0002] In the city construction, the subway station as the important hub of city public traffic, the passenger flow is big, daily operation process involves a variety of water demand, such as platform cleaning, greening irrigation, toilet flushing etc. The traditional subway station water mainly relies on city water supply, this undoubtedly increases the burden of city water supply system. And, the preparation of city water needs to go through a series of complex processing technology, consumes a large amount of energy and resources, the cost is higher, therefore, in the construction and operation of subway station, introduce rainwater ecological recycling device, collect, process and recycle rainwater as a kind of available water resources.

[0003] But the rainwater ecological recycling device of prior art has the following problems when in use:

[0004] The initial rainwater contains a large amount of pollutants, such as dust, silt, oil stains, etc. If the initial rainwater is directly collected into the treatment system, it will increase the difficulty and cost of subsequent treatment and reduce the treatment effect. But some existing devices only rely on simple filtration and sedimentation, which is difficult to effectively remove harmful substances such as organic matter, microorganisms and heavy metals in rainwater, resulting in unstable water quality of treated rainwater, which cannot meet the water quality requirements of different water scenes in the subway platform. And the water level cannot be alarmed in real time when it reaches a certain height, which makes it difficult for the staff to grasp the dynamic changes of the water level in the water storage tank. When the rainwater collection amount is large, if the water level continues to rise beyond the carrying capacity of the water storage tank without timely alarm, it is easy to cause rainwater overflow. Rainwater overflow not only causes waste of water resources, but also may cause damage to surrounding electrical equipment and platform facilities, increase equipment failure and maintenance cost, and even may cause safety accidents, affecting the normal operation order of the subway station. Moreover, due to the inability to alarm in real time, the staff can only rely on regular inspection to check the water level, which not only consumes manpower and time, but also has the risk of water level rising abnormally during the inspection interval without being discovered in time, reducing the safety and reliability of the operation of the rainwater ecological recycling device.

[0005] The utility model can purify rainwater layer by layer, improve water quality, ensure safety through water level monitoring and alarm system, realize the integration of rainwater collection, treatment and recycling in subway platform, save tap water, reduce cost, reduce urban drainage pressure and efficiently utilize rainwater resources. UTILITY MODEL CONTENTS

[0006] The utility model aims at solving the technical problems in the above background art, and provides a subway platform rainwater ecological recycling device.

[0007] To achieve the above object, the utility model provides following technical scheme: a subway platform rainwater ecological recycling device, include: water inlet tank, the one side of water inlet tank is provided with filter tank, the one side of filter tank is provided with water storage tank, the one side of water inlet tank, filter tank and water storage tank all are fixedly installed with valve, the upper end of water inlet tank is detachably connected with grating, one end of water inlet tank is fixedly installed with transmission pipe no.

[0008] Further preferred scheme: the filter plate is slidably connected in the water inlet tank.

[0009] Further preferred scheme: the filter layer is divided into sand filter and activated carbon filter, the sand filter is fixedly installed at the right end in the filter tank, and the activated carbon filter is fixedly installed at the left end in the filter tank.

[0010] Further preferred scheme: the signal receiver is fixedly installed on the upper end of the water storage tank, and the alarm is fixedly installed on the upper end of the signal receiver.

[0011] Further preferred scheme: the sliding grooves are formed in the left and right ends of the water storage tank, a plurality of auxiliary rollers are rotatably installed in the sliding grooves, the floating plate is slidably installed in the water storage tank, the sliding blocks are fixedly connected to the left and right ends of the floating plate, the sliding blocks are slidably connected with the sliding grooves, and the sliding blocks are movably connected with the auxiliary rollers.

[0012] Further preferred scheme: the top pins are fixedly installed on the left and right sides of the upper end of the floating plate, the fixed plates are fixedly installed above the sliding grooves, the buttons are arranged on the bottom of the fixed plates, and the buttons are matched with the signal receiver. Beneficial effects

[0013] 1. By setting grating and filter plate, intercepting leaves, garbage and other large sundries by grating, filtering small particle impurities by filter plate, avoiding pipe and equipment blockage and wear, prolonging the service life of the device, reducing maintenance cost, improving processing efficiency, preliminary classification and filtration are realized by cooperation of the two, grating reduces the burden of filter plate, so that it focuses on small particle filtration, reduces the processing pressure of subsequent filter layer, improves the overall processing efficiency, and improves the quality of recycled rainwater, meets the needs of different recycling scenarios, and facilitates regular cleaning and replacement of grating and filter plate, reduces maintenance difficulty and workload, improves the maintainability and management efficiency of the device.

[0014] 2. By setting up the filter box, the filter layer in the filter box adopts different filtering precision materials, the sand filter can intercept suspended particles, silt and other large particle impurities, the activated carbon filter can adsorb organic matter, peculiar smell, heavy metal ions and the like, the combination of the two realizes graded filtration, different pollutants are removed at the corresponding stage, the purification efficiency is greatly improved, the treated rainwater can better meet the reuse demand, after the deep filtration of the filter box, the impurity content in the rainwater is greatly reduced, this can effectively prevent the impurities from entering the water storage tank and the reuse equipment, reduce the wear and tear and blockage of the equipment, prolong the service life of the equipment, reduce the maintenance cost and the failure rate;

[0015] 3. By setting up the chute, the floating plate, the thimble, the button and the alarm, the chute provides a stable sliding track for the floating plate, ensures that the floating plate can smoothly and accurately move up and down with the change of the water level in the water storage tank, the floating plate moves the thimble with the water level, when the water level rises to a dangerous height, the thimble touches the button, triggers the signal transmission to the alarm, it can monitor the water level in the water storage tank in real time and accurately, when the water level reaches the preset dangerous value, timely alarm is given, reminding the staff to take measures, such as stopping water inflow or drainage, to avoid the water tank overflow due to the high water level, and further prevent the rainwater from backflowing to damage the equipment and affect the subway operation and the like;

[0016] 4. As described above, the subway platform rainwater ecological reuse device is provided with the grating, the filter plate, the filter box and the water storage tank and the like, the grating serves as the first line of defense, intercepts large-size sundries, prevents the sundries from entering the device to cause blockage, the filter plate further filters small-particle impurities, the multi-stage filter layer in the filter box deeply purifies the rainwater, removes various pollutants, improves the water quality, and the water storage tank provides a stable storage space for the treated rainwater, guarantees the continuity of reuse, in addition, the water level monitoring and alarming system in the device is composed of the chute, the floating plate, the thimble, the button and the alarm, can monitor the water level in real time, timely warning is given when the water level is abnormal, to avoid the water tank overflow and the like, these structures cooperate with each other, form a complete rainwater ecological reuse system, not only effectively utilizes the rainwater resources, saves the urban tap water, but also reduces the water cost of subway operation. BRIEF DESCRIPTION OF DRAWINGS

[0017] Figure 1 It is the overall structure schematic view of the utility model.

[0018] Figure 2 It is the internal structure schematic view of the water storage tank of the utility model.

[0019] Figure 3 It is the chute structure schematic view of the utility model.

[0020] Figure 4 It is the fixed plate bottom structure schematic view of the utility model.

[0021] Figures 1-4 M: 1, water inlet tank; 101, grille; 102, filter plate; 103, transmission pipe one; 2, filter box; 201, filter layer; 202, transmission pipe two; 3, water storage tank; 301, signal receiver; 302, alarm; 303, water outlet pipe; 304, chute; 305, auxiliary roller; 306, floating plate; 307, sliding block; 308, thimble; 309, fixed plate; 310, button; 4, valve. DETAILED DESCRIPTION

[0022] The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application. Figures 1-4 The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application.

[0023] Please refer to Figures 1-4The utility model discloses a subway platform rainwater ecological recycling device, include: water inlet box 1, water inlet box 1 one side is provided with filter box 2, filter box 2 one side is provided with water storage tank 3, water inlet box 1, filter box 2 with the one side of water storage tank 3 is fixedly installed with valve 4, water inlet box 1 upper end detachably connected with grid 101, water inlet box 1 one end fixedly installed with transmission pipe one 103, transmission pipe one 103 other end is fixedly connected with filter box 2, filter box 2 inside both ends are fixedly installed with filter layer 201, filter box 2 one end fixedly installed with transmission pipe two 202, transmission pipe two 202 other end is fixedly connected with water storage tank 3, water storage tank 3 one end fixedly installed with water outlet pipe 303, transmission pipe one 103, transmission pipe two 202 with water outlet pipe 303 upper end are fixedly installed with valve 4, water inlet box 1 inside slidingly connected with filter plate 102, the rainwater of subway platform first passes through the detachable connection of water inlet box 1 upper end grid 101, and grid 101 plays the role of first filtration barrier, it can intercept the larger sundries in rainwater, such as leaf, branch, garbage etc., prevent these large size objects from entering the inside of device, avoid the follow -up pipeline and equipment and take place and block up, after the rainwater after preliminary filtration of grid 101 enters water inlet box 1 inside, and water inlet box 1 is provided with the filter plate 102 of slidable connection, when rainwater flows in water inlet box 1, filter plate 102 will further filter the relatively smaller particle impurities in rainwater, and the rainwater impurity content of subsequent processing link is reduced, when the water level in water inlet box 1 reaches certain degree or needs rainwater treatment, open valve 4 on transmission pipe one 103 upper end, at this time, the rainwater after preliminary filtration of water inlet box 1 flows into filter box 2 through transmission pipe one 103, after rainwater enters filter box 2, will pass through the filter layer 201 fixedly installed inside both ends, and filter layer 201 usually adopts the filter material made of different filtration accuracy, such as activated carbon, quartz sand etc., they can further remove the small particle, organic matter, peculiar smell and part of microorganism etc. in rainwater, make rainwater get more depth purification, when the water level in filter box 2 is suitable and needs storage, open valve 4 on transmission pipe two 202 upper end, and rainwater flows from filter box 2 into water storage tank 3 through transmission pipe two 202 and stores, and water storage tank 3 is as a reserve container, provides stable water source for subsequent rainwater recycling, when subway platform has rainwater recycling demand, for example carries out platform cleaning, afforestation irrigation, toilet flushing etc. work, open valve 4 on water outlet pipe 303 upper end, and the rainwater stored in water storage tank 3 after treatment is transported to the place needing water through water outlet pipe 303, realizes rainwater ecological recycling.

[0024] In the embodiment of the utility model, the filter layer 201 is divided into sand filter and activated carbon filter, the sand filter is fixedly installed at the right end inside the filter box 2, the activated carbon filter is fixedly installed at the left end inside the filter box 2, the sand filter is mainly used for filtering the suspended particles, silt, rust and other larger particle size impurities in rainwater, it can effectively remove these visible pollutants through the physical interception of sand layer, makes rainwater preliminary clarification, and the activated carbon filter is focused on adsorbing organic matter, peculiar smell, pigment and part heavy metal ions in rainwater, etc., combines two, according to the order of sand filtration first and activated carbon filtration later, can realize grading filtration, lets different types of pollutants be removed in corresponding filtration stage, greatly improves the purification efficiency of rainwater.

[0025] The utility model discloses a signal receiving ware 301 is fixedly installed on the upper end of the water storage tank 3, the alarm 302 is fixedly installed on the upper end of the signal receiving ware 301, the left and right two ends of the water storage tank 3 are all set up the sliding slot 304, the inside of sliding slot 304 is all rotatoryly installed with a plurality of auxiliary rollers 305, the water storage tank 3 is slidably installed with the float plate 306, the left and right two ends of float plate 306 are all fixedly connected with the sliding block 307, and the sliding block 307 is slidably connected with the sliding slot 304, and the outer end of sliding block 307 is movably connected with the auxiliary roller 305, the left and right sides of the upper end of float plate 306 are all fixedly installed with the thimble 308, the fixed plate 309 is fixedly installed above the sliding slot 304, and the button 310 is set up on the bottom of fixed plate 309, and the button 310 is matched with the signal receiving ware 301, and the water storage tank 3 is in normal working condition, and the water level is in the safe range, and the float plate 306 floats on the water surface, because the water level is low, the float plate 306 is in the relatively low position, at this moment, the thimble 308 on the float plate 306 is separated with the button 310 on the bottom of fixed plate 309, the button 310 is not triggered, and the signal receiving ware 301 does not receive the signal, and the alarm 302 is in the mute state, when the rainwater that has been treated continuously flows into the water storage tank 3 through the transmission pipe no. 2 202, the water level in the water tank gradually rises, along with the water level rising, the float plate 306 that floats on the water surface also rises, and the sliding block 307 on the left and right two ends of float plate 306 slides upwards in the sliding slot 304, the sliding block 307 is movably connected with the auxiliary roller 305 rotatoryly installed in the sliding slot 304, and the auxiliary roller 305 can reduce the friction between the sliding block 307 and the sliding slot 304, so that the float plate 306 can move more smoothly along with the water level rising, when the water level continuously rises to a certain height, reaches the preset dangerous water level, the float plate 306 rises, and the thimble 308 fixedly installed on the left and right sides of the upper end is contacted with the button 310 on the bottom of fixed plate 309 and presses the button 310, after the button 310 is triggered, will send the signal to the signal receiving ware 301 matched with it, after the signal receiving ware 301 receives the signal sent by the button 310, will process the signal and trigger the alarm 302 connected with it, and the alarm 302 starts to send the alarm, reminds the relevant staff that the water level in the water storage tank 3 has reached the dangerous height, needs to take the measures in time, such as stopping to enter the water in the water storage tank 3 or carrying out the drainage operation to the water storage tank 3, to avoid the water tank to appear the overflow problem because the water level is too high, when the staff takes the corresponding measure and makes the water level in the water storage tank 3 drop, the float plate 306 will drop along with the water level, and the thimble 308 is separated with the button 310, and the button 310 does not send the signal to the signal receiving ware 301, and the signal receiving ware 301 stops transmitting the trigger signal to the alarm 302, and the alarm 302 stops the alarm, and the device restores to the initial normal working condition.

[0026] Working principle: After the rainwater falls on the subway platform, it first flows to the detachable grid 101 at the upper end of the water inlet box 1. The grid 101 intercepts larger debris such as leaves, branches, and garbage in the rainwater, effectively preventing these large-sized objects from entering the device interior and avoiding subsequent pipe and equipment blockage and normal operation. The rainwater that has been preliminarily filtered by the grid 101 enters the water inlet box 1. The water inlet box 1 is provided with a slidably connected filter plate 102. When the rainwater flows in the water inlet box 1, the filter plate 102 further plays a filtering role, filtering out relatively small particulate impurities in the rainwater, thereby reducing the impurity content of the rainwater entering the subsequent treatment link and reducing the burden on the subsequent treatment. When the water level in the water inlet box 1 reaches a certain level, or according to the preset time or other conditions, the operator opens the valve 4 at the upper end of the transmission pipe one 103. At this time, the rainwater that has been preliminarily filtered by the water inlet box 1 flows into the filter box 2 through the transmission pipe one 103. After the rainwater enters the filter box 2, it will successively pass through the filter layers 201 fixedly installed at the left and right ends inside. The filter layers 201 are divided into sand filters and activated carbon filters. The sand filter is fixedly installed at the right end inside the filter box 2, and the activated carbon filter is fixedly installed at the left end inside the filter box 2. The rainwater first passes through the sand filter. The sand filter mainly utilizes the physical interception of the sand layer to filter the suspended particles, silt, rust, and other large-particle impurities in the rainwater, making the rainwater preliminarily clear and removing visible pollutants. The rainwater that has been preliminarily filtered by the sand filter then enters the activated carbon filter. The activated carbon filter focuses on adsorbing organic matter, odors, pigments, and part of heavy metal ions in the rainwater. Through the strong adsorption performance of activated carbon, the rainwater is further purified, achieving deeper purification. When the water level in the filter box 2 is appropriate and needs to be stored, the operator opens the valve 4 at the upper end of the transmission pipe two 202. The rainwater flows from the filter box 2 to the water storage box 3 through the transmission pipe two 202 for storage. The water storage box 3 serves as a reserve container, providing a stable water source for subsequent rainwater reuse. When the water storage box 3 is in normal working condition, the water level is within a safe range, and the floating plate 306 floats on the water surface. Due to the low water level, the floating plate 306 is at a relatively low position. At this time, the top pin 308 on the floating plate 306 is separated from the button 310 at the bottom of the fixed plate 309, the button 310 is not triggered, the signal receiver 301 does not receive a signal, and the alarm 302 is in a silent state. As the treated rainwater continuously flows into the water storage box 3 through the transmission pipe two 202, the water level in the water tank gradually rises. As the water level rises, the floating plate 306 floating on the water surface also rises. The sliding blocks 307 at the left and right ends of the floating plate 306 slide upwards in the sliding grooves 304. The sliding blocks 307 are movably connected with the auxiliary rollers 305 rotatably installed in the sliding grooves 304. The auxiliary rollers 305 can reduce the friction between the sliding blocks 307 and the sliding grooves 304, enabling the floating plate 306 to move more smoothly as the water level rises. When the water level continues to rise to a certain height,When the preset dangerous water level is reached, the floating plate 306 rises, the upper end of the left and right sides of the floating plate 306 is fixedly installed with the top pin 308, and the bottom of the fixed plate 309 is in contact with and presses the button 310. After the button 310 is triggered, a signal will be sent to the signal receiver 301 matched with the button 310. After the signal receiver 301 receives the signal sent by the button 310, the signal will be processed and the alarm 302 connected with the signal receiver 301 will be triggered. The alarm 302 starts to alarm, reminding the relevant staff that the water level in the water storage tank 3 has reached a dangerous height, and measures need to be taken in time. When the staff takes corresponding measures, such as stopping water from entering the water storage tank 3 or draining the water storage tank 3, the water level in the water storage tank 3 will drop, and the floating plate 306 will drop with the water level. The top pin 308 is separated from the button 310, the button 310 no longer sends a signal to the signal receiver 301, the signal receiver 301 stops transmitting the trigger signal to the alarm 302, and the alarm 302 stops alarming. The device returns to the initial normal working state. When there is a demand for rainwater reuse on the subway platform, for example, platform cleaning, greening irrigation, toilet flushing and other work, the operator opens the valve 4 at the upper end of the water outlet pipe 303, and the treated rainwater stored in the water storage tank 3 is transported to the place where water is needed through the water outlet pipe 303, realizing ecological reuse of rainwater, thereby achieving the purpose of saving water resources. The water inlet tank 1 and the grid 101 of the device are located at the front end of the rainwater collection, such as the area near the drainage outlet at the edge of the platform, or the low-lying area of the platform peripheral green belt, and are connected with the original ground drainage system of the subway platform. The filter box 2 is usually arranged close to the water inlet tank, which is convenient for connection through the transmission pipe 103, so that the rainwater preliminarily filtered by the water inlet tank 1 can flow smoothly. Considering maintenance and space utilization, the filter box 2 can be arranged in the equipment room on the first floor close to the water inlet tank, which can not only ensure that the equipment operating environment is relatively stable, but also facilitate regular maintenance and repair of the staff. The water storage tank 3 has a large volume and is usually arranged in the underground space of the subway platform, such as the equipment area specially reserved on the second floor underground. This position is chosen because the space is relatively spacious and can take advantage of the terrain difference to facilitate the flow of rainwater by gravity, and it is also close to each water point of the subway platform, which is convenient for subsequent rainwater reuse. In addition, the water storage tank should be arranged in a stable structure area to withstand the great weight of the full tank. When there is rainwater on the ground, part of the rainwater is directly discharged into the municipal drainage network through the drainage outlet of the original drainage system, and the other part flows into the water inlet tank 1 for collection. The arrangement of the water inlet tank 1 will not affect the normal operation of the original drainage system, but will divert and collect part of the rainwater based on the original drainage system. The size of the water inlet tank 1 should be determined according to the estimated rainwater flow of the platform. Generally speaking, for a medium-sized subway platform, the length, width and height of the water inlet tank can be designed to be about 2m x 1.5m x 1m, and the volume is about 3 cubic meters. The size should ensure that a certain amount of rainwater can be stored in a short time to prevent rainwater from being treated in time and causing waterlogging. If it is a large subway platform, the size of the water inlet tank can be appropriately increased,The size of the filter tank 2 mainly depends on the design of the filter layer and the processing capacity. Commonly, the filter tank 2 is about 1.5 m x 1 m x 1.2 m in length, width and height, and the sand filter and the activated carbon filter inside occupy most of the space. The volume ratio of the sand filter and the activated carbon filter can be adjusted according to the actual water quality treatment requirements, for example, the sand filter part accounts for about 60% of the volume of the filter tank, and the activated carbon filter accounts for about 40%. The size of the water storage tank 3 is relatively large, and its volume needs to be determined comprehensively according to the water demand of the subway platform and the amount of rainwater collected. For a general medium-sized subway platform, the water storage tank can be designed to be 5 m long, 3 m wide and 2 m high, with a volume of 30 cubic meters. Such a water storage tank can basically meet the daily cleaning, greening irrigation and toilet flushing water demand of the platform. If it is a large subway platform, the size of the water storage tank can be increased accordingly, such as 8 m long, 5 m wide and 2.5 m high, with a volume of 100 cubic meters.

Claims

1. A subway platform rainwater ecological recycling device, comprising: A water inlet tank (1) is provided with a filter box (2) on one side and a water storage tank (3) on one side of the filter box (2). Valves (4) are fixedly installed on one side of the water inlet tank (1), the filter box (2) and the water storage tank (3). The water inlet tank (1) is characterized by: a grid (101) being detachably connected to the upper end of the water inlet tank (1); a transmission pipe (103) being fixedly installed at one end of the water inlet tank (1); the other end of the transmission pipe (103) being fixedly connected to the filter box (2); a filter layer (201) being fixedly installed at both the left and right ends inside the filter box (2); a transmission pipe (202) being fixedly installed at one end of the filter box (2); the other end of the transmission pipe (202) being fixedly connected to the water storage tank (3); an outlet pipe (303) being fixedly installed at one end of the water storage tank (3); and valves (4) being fixedly installed at the upper ends of the transmission pipe (103), the transmission pipe (202) and the outlet pipe (303).

2. The subway platform rainwater ecological recycling device according to claim 1, characterized in that: A filter plate (102) is slidably connected inside the water inlet tank (1).

3. The subway platform rainwater ecological recycling device according to claim 1, characterized in that: The filter layer (201) is divided into a sand filter and an activated carbon filter. The sand filter is fixedly installed inside the filter box (2) at the right end, and the activated carbon filter is fixedly installed inside the filter box (2) at the left end.

4. The subway platform rainwater ecological recycling device according to claim 1, characterized in that: A signal receiver (301) is fixedly installed on the upper end of the water storage tank (3), and an alarm (302) is fixedly installed on the upper end of the signal receiver (301).

5. The subway platform rainwater ecological recycling device according to claim 4, characterized in that: The water storage tank (3) has sliding grooves (304) at both the left and right ends. Several auxiliary rollers (305) are rotatably installed inside the sliding grooves (304). A float plate (306) is slidably installed inside the water storage tank (3). A slider (307) is fixedly connected to both the left and right ends of the float plate (306). The slider (307) is slidably connected to the sliding grooves (304), and the outer end of the slider (307) is movably connected to the auxiliary rollers (305).

6. The subway platform rainwater ecological recycling device according to claim 5, characterized in that: The float (306) is fixedly installed with pins (308) on both the left and right sides of the upper end. The slide (304) is fixedly installed with a fixing plate (309). The bottom of the fixing plate (309) is provided with a button (310). The button (310) is matched with the signal receiver (301).

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