Water circulation device of car washer

Abstract

The utility model belongs to the technical field of car washing sewage treatment, and discloses a water circulation device of a car washer, which comprises a water collecting tank, a dosing device, a sedimentation tank, an oil separation tank, a photocatalysis tank, filtering equipment and a recycling water tank. Sewage discharged by car washing is collected into the water collecting tank, a water purifying agent is added into the sewage by the agent adding device, meanwhile, the sewage flows into the sedimentation tank, the sedimentation tank is used for primarily separating precipitates from the sewage and then discharging the sewage into the oil separation tank, and the oil separation tank is used for separating grease in the sewage from the sewage and discharging the sewage into the photocatalysis tank at the same time; the photocatalytic tank can sterilize the sewage, then the sewage flows through the filtering device, the filtering device can further remove suspended solids and peculiar smell in the sewage, and finally the treated sewage is discharged into the recycling water tank for vehicle washing operation, so that water resources are fully saved, the environment is protected, and the vehicle washing cost is reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of car washing sewage treatment, in particular to a water circulation device for a car washing machine. Background Art

[0002] With the development of rail transit, such as skytrains and subways, car washing technology has gradually been widely used. Due to the large size of the car body of the skytrain or subway, the water demand for car washing is much greater than that of ordinary civilian cars.

[0003] The existing car washing systems, such as pass-through washing and fully automatic washing technologies, lack corresponding sewage filtration and circulation systems, resulting in excessive waste of water resources. Utility Model Content

[0004] The utility model aims to provide a car washing machine water circulation device, which is used for filtering and purifying sewage to reduce waste.

[0005] To achieve this purpose, the utility model adopts the following technical solutions:

[0006] A car washing machine water circulation device, comprising:

[0007] a sump configured to collect sewage;

[0008] A dosing device configured to add a water purification agent into the water collection tank;

[0009] A sedimentation tank connected to the water collection tank, the sedimentation tank is configured to collect sediment;

[0010] A grease trap, connected to the sedimentation tank, the grease trap being configured to separate grease from the sewage;

[0011] A photocatalytic pool connected to the grease trap, the photocatalytic pool being configured to sterilize sewage;

[0012] A filter device, the input end of which is connected to the photocatalytic pool, and the filter device is configured to remove suspended matter and odor in the sewage;

[0013] A reuse water pool is connected to the output end of the filtering device, and the reuse water pool is configured to supply water to the car washing device.

[0014] Preferably, a submersible mixer is provided in the water collection tank.

[0015] Preferably, a first water pump is provided in the water collection tank, and the first water pump can pump sewage in the water collection tank into the sedimentation tank.

[0016] Preferably, a plurality of partitions are arranged in the sedimentation tank at intervals in the horizontal direction, each of the partitions is provided with a through water hole, and the water holes on two adjacent partitions are at different heights.

[0017] Preferably, a separation tube is provided in the grease trap, one end of the separation tube is immersed below the liquid level of the grease trap, and the other end is connected to the photocatalytic tank.

[0018] Preferably, a second water pump is provided in the photocatalytic pool, and the second water pump can pump sewage in the photocatalytic pool into the filtering device.

[0019] Preferably, the filtering device comprises:

[0020] A sand filter tank, the input end of which is connected to the photocatalytic pool;

[0021] The input end of the carbon filter tank is connected to the output end of the sand filter tank, and the output end of the carbon filter tank is connected to the recycled water pool.

[0022] Preferably, a third water pump is provided in the reuse water pool, and the third water pump can pump water from the reuse water pool into the filtering device.

[0023] Preferably, a pH detection probe is provided in the water collection tank.

[0024] Preferably, a drainage ditch is further included, and the water collection tank, the sedimentation tank, the grease trap, the photocatalytic tank, the filtering equipment and the recycled water tank can be selectively connected to the drainage ditch.

[0025] Beneficial effects of the utility model:

[0026] The sewage discharged from the car wash is collected in the collection tank, and the dosing device adds water purification agents into the sewage. At the same time, the sewage flows into the sedimentation tank. After the sedimentation tank initially separates the sediment from the sewage, the sewage is discharged into the grease trap. The grease trap separates the grease in the sewage from the sewage and discharges the sewage into the photocatalytic tank. The photocatalytic tank can sterilize the sewage, and then the sewage is made to flow through the filtering equipment. The filtering equipment can further remove the suspended matter and odor in the sewage. Finally, the treated sewage is discharged into the reuse water pool for use in the car washing operation, which fully saves water resources, protects the environment, and reduces the cost of car washing. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] Figure 1 It is a structural schematic diagram of the water circulation device of the car washing machine of the utility model;

[0028] Figure 2 It is a structural schematic diagram of the water circulation device of the car washing machine of the utility model with some structures omitted;

[0029] Figure 3 It is a connection relationship diagram between the water collecting tank and the dosing device described in the embodiment of the utility model.

[0030] In the figure:

[0031] 1. Water collection tank; 11. Submersible mixer; 12. First water pump; 13. pH detection probe;

[0032] 2. Dosing device;

[0033] 3. Sedimentation tank; 31. Partition plate;

[0034] 4. Grease trap; 41. Separation pipe;

[0035] 5. Photocatalytic pool; 51. Second water pump

[0036] 6. Filtration equipment; 61. Sand filter tank; 62. Carbon filter tank;

[0037] 7. Recycling water pool; 71. The third water pump;

[0038] 8. Drainage ditch. DETAILED DESCRIPTION

[0039] The embodiments of the present invention are described in detail below, and examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar components or components having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are intended to be used to explain the present invention, and should not be construed as limiting the present invention.

[0040] In the description of the present invention, unless otherwise clearly specified and limited, the terms "connected", "connected", and "fixed" should be understood in a broad sense, for example, it can be a fixed connection or a detachable connection, it can be a mechanical connection or an electrical connection, it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0041] In the description of the present utility model, unless otherwise clearly stipulated and limited, a first feature being "above" or "below" a second feature may include the first feature and the second feature being in direct contact, or may include the first feature and the second feature being in contact not directly but through another feature between them. Moreover, a first feature being "above", "above" and "above" a second feature includes the first feature being directly above and obliquely above the second feature, or simply indicates that the first feature is higher in level than the second feature. A first feature being "below", "below" and "below" a second feature includes the first feature being directly below and obliquely below the second feature, or simply indicates that the first feature is lower in level than the second feature.

[0042] The technical solution of the utility model is further explained below with reference to the accompanying drawings and through specific implementation methods.

[0043] like Figure 1-Figure 3 As shown, the utility model provides a car washing machine water circulation device for filtering and purifying sewage discharged from car washing operations, and the car washing machine water circulation device includes a water collecting tank 1, a dosing device 2, a sedimentation tank 3, a grease trap 4, a photocatalytic tank 5, a filtering device 6 and a reuse water tank 7. Among them, the water collecting tank 1 is configured to collect sewage; the dosing device 2 can add water purification agents into the water collecting tank 1; the sedimentation tank 3 is connected to the water collecting tank 1, and the sedimentation tank 3 is configured to collect sediments; the grease trap 4 is connected to the sedimentation tank 3, and the grease trap 4 is configured to separate grease from sewage; the photocatalytic tank 5 is connected to the grease trap 4, and the photocatalytic tank 5 is configured to sterilize sewage; the input end of the filtering device 6 is connected to the photocatalytic tank 5, and the filtering device 6 is configured to remove suspended matter and odor from sewage; the reuse water tank 7 is connected to the output end of the filtering device 6, and the reuse water tank 7 is configured to supply water to the car washing equipment.

[0044] The sewage discharged from the car wash is collected in the water collection tank 1, and the dosing device 2 will be configured to add the water purification agent into the water collection tank 1; add it into the sewage, and at the same time the sewage flows into the sedimentation tank 3, after the sedimentation tank 3 preliminarily separates the sediment from the sewage, the sewage is discharged into the grease trap 4, the grease trap 4 separates the grease in the sewage from the sewage, and at the same time discharges the sewage into the photocatalytic tank 5, the photocatalytic tank 5 can sterilize the sewage, and then make the sewage flow through the filtering device 6, the filtering device 6 can further remove the suspended matter and odor in the sewage, and finally discharge the treated sewage into the reuse water tank 7 for use in the car washing operation, so as to fully save water resources, protect the environment, and reduce the cost of car washing.

[0045] Specifically, the dosing device 2 is provided with a dosing pump, a medicine cartridge and a dosing pipe. The dosing pipe is connected between the medicine cartridge and the water collecting tank 1 . The dosing pump can pump the water purification agent in the medicine cartridge into the water collecting tank 1 .

[0046] In this embodiment, the water purification agent is a flocculant commonly used in the art, which may be an organic polymer flocculant, an inorganic salt flocculant, or a microbial flocculant, which is not limited here.

[0047] In this embodiment, a photocatalytic device is provided in the photocatalytic pool 5, and the device is used to sterilize and purify sewage. The photocatalytic device is a commonly used prior art in the field and will not be described in detail here.

[0048] Optionally, the filtering device 6 and the reuse water pool 7 may also be provided with a photocatalytic device to achieve a secondary sterilization effect.

[0049] Specifically, it also includes a drainage ditch 8, and the water collection tank 1, the sedimentation tank 3, the grease trap 4, the photocatalytic tank 5, the filtering device 6 and the reuse water tank 7 can all be selectively connected to the drainage ditch 8. In this embodiment, a valve mechanism that can be controlled to open or close is provided between the drainage ditch 8, the water collection tank 1, the sedimentation tank 3, the grease trap 4, the photocatalytic tank 5, the filtering device 6 and the reuse water tank 7 and the drainage ditch 8. When there is too much sewage in the water circulation device of the car washing machine, the corresponding valve can be opened to allow part of the sewage to flow into the drainage ditch 8 to prevent the system from being overloaded. The above valve mechanism belongs to the prior art in this field and will not be described in detail here.

[0050] More specifically, the sewage discharged into the drainage ditch 8 can meet the TB / T 3007-2000 "Railway Recycled Water Quality Standard", which fully meets the requirements for locomotive flushing water.

[0051] More specifically, the water collection tank 1, the sedimentation tank 3, the oil separator 4, the photocatalytic tank 5, the filtering device 6 and the reuse water tank 7 are all arranged as a slope, and the drainage ditch 8 is connected to the slope, so that the sewage can slide down the slope under its own gravity and flow into the drainage ditch 8. In this embodiment, the slope is 0.5%.

[0052] It is understandable that the water circulation device of the car washing machine can be pre-buried underground to fully save space.

[0053] Specifically, overflow ports connected to the drainage ditch 8 are provided on the side walls of the water collection tank 1, the photocatalytic tank 5, and the reuse water tank 7, and liquid level gauges are provided in the water collection tank 1, the photocatalytic tank 5, and the reuse water tank 7. The liquid level gauges can monitor the height of the sewage liquid level to ensure that the liquid level does not exceed the overflow port.

[0054] Specifically, a submersible mixer 11 is provided in the water collection tank 1. The provision of the submersible mixer 11 can fully stir the sewage in the water collection tank 1, so that the sewage is fully mixed with the water purification agent, and the speed at which the water purification agent takes effect is accelerated.

[0055] Specifically, the water collection tank 1 is provided with a first water pump 12, which can pump the sewage in the water collection tank 1 into the sedimentation tank 3. The provision of the first water pump 12 enables the sewage in the water collection tank 1 to flow into the sedimentation tank 3 faster, thereby preventing the water level in the water collection tank 1 from being too high.

[0056] In this embodiment, the first water pump 12 is provided with two 50WQ15-15-1.5 submersible pumps to ensure that sufficient suction can be provided.

[0057] Specifically, a plurality of partitions 31 are arranged horizontally in the sedimentation tank 3, each of which is provided with a through water hole, and the water holes on two adjacent partitions 31 are at different heights. The above arrangement can extend the movement path of the sewage in the sedimentation tank 3, so that the sediment and the sewage can be separated.

[0058] Specifically, a separation tube 41 is provided in the grease trap 4, one end of the separation tube 41 is immersed below the liquid level of the grease trap 4, and the other end is connected to the photocatalytic tank 5. In the above arrangement, since the density of grease is less than that of water, the end of the separation tube 41 immersed below the liquid level can suck the sewage into the separation tube 41 and discharge it from the other end connected to the photocatalytic tank 5, so as to achieve the purpose of separating grease and sewage.

[0059] In this embodiment, the separation tube 41 is a T-shaped equal-diameter (180 mm) three-way tube made of PVC. The first end and the second end of the separation tube 41 are both immersed in water, and the first end is located above the second end. The third end of the separation tube 41 is connected to the photocatalytic pool 5, and the first end is configured to be blocked with a filler to prevent the grease on the upper layer of the liquid surface from entering the separation tube 41. The above arrangement is convenient for local materials, low production cost, and the PVC material has a certain corrosion resistance and is durable.

[0060] Specifically, a second water pump 51 is provided in the photocatalytic pool 5, and the second water pump 51 can pump the sewage in the photocatalytic pool 5 into the filtering device 6. The provision of the second water pump 51 enables the sewage in the photocatalytic pool 5 to flow into the filtering device 6 faster, thereby preventing the water level in the photocatalytic pool 5 from being too high.

[0061] In this embodiment, the second water pump 51 is provided with two 50WQ15-35-4 submersible pumps to ensure that sufficient suction can be provided.

[0062] Specifically, the filtering device 6 includes a sand filter tank 61 and a carbon filter tank 62. The input end of the sand filter tank 61 is connected to the photocatalytic tank 5; the input end of the carbon filter tank 62 is connected to the output end of the sand filter tank 61, and the output end of the carbon filter tank 62 is connected to the reuse water tank 7. The above-mentioned setting is a split filtering setting, and the sewage flows through the sand filter tank 61 and the carbon filter tank 62 in sequence, first removing impurities and then removing odors.

[0063] More specifically, the sand filter tank 61 is provided with replaceable sand fillers, which are, from top to bottom, a 30 cm thick pebble layer, a 50 cm thick coarse quartz sand layer and a 40 cm thick fine quartz sand layer, wherein the pebble particle size is 4-8 cm, the coarse quartz sand particle size is 8-16 mm, and the fine quartz sand particle size is 4-8 mm.

[0064] More specifically, the carbon filter tank 62 is provided with replaceable carbon fillers, which are, from top to bottom, a 30 cm thick pebble layer, a 50 cm thick coarse quartz sand layer and a 60 cm thick activated carbon layer, wherein the pebble particle size is 4-8 cm, the coarse quartz sand particle size is 8-16 mm, and the activated carbon particle size is 4 mm or 8 mm.

[0065] Specifically, a third water pump 71 is provided in the reuse water pool 7, and the third water pump 71 can pump the water in the reuse water pool 7 to the filtering device 6. With the provision of the third water pump 71, the water in the reuse water pool 7 can, under the suction action of the third water pump 71, pass through the filtering device 6 and flow back to the water collection pool 1, the sedimentation pool 3, the grease trap 4, and the photocatalytic pool 5, and flush the precipitate, grease and other impurities into the drain ditch 8, so as to realize the self-cleaning of the overall water circulation system.

[0066] In this embodiment, the third water pump 71 is provided with a 50WQ15-35-4 submersible pump to ensure that sufficient suction can be provided.

[0067] Specifically, a pH detection probe 13 is provided in the water collection tank 1. The above-mentioned pH detection probe 13 can monitor the pH value of the sewage at all times. In this embodiment, the pH detection probe 13 should be completely immersed below the sewage liquid level and should not be exposed to air to ensure the accuracy of the measurement. In this embodiment, when the pH value in the water collection tank 1 exceeds the preset limit value, the pH detection probe 13 can serve as an alarm to prompt the workers to perform further processing.

[0068] Specifically, ladder structures are provided on the inner walls of the water collection tank 1, the sedimentation tank 3, the grease trap 4, the photocatalytic tank 5, the filtering equipment 6 and the recycled water tank 7 so that workers can enter the interior for maintenance.

[0069] Obviously, the above embodiments of the present invention are merely examples for clearly illustrating the present invention, and are not intended to limit the implementation methods of the present invention. For those skilled in the art, other different forms of changes or modifications can be made based on the above description. It is not necessary and impossible to list all implementation methods here. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of the present invention shall be included in the protection scope of the claims of the present invention.

Claims

1. A car washing machine water circulation device, characterized in that: include: A sump (1) configured to collect sewage; A dosing device (2) configured to add a water purification agent into the water collection tank (1); A sedimentation tank (3) connected to the water collection tank (1), wherein the sedimentation tank (3) is configured to collect sediment; A grease trap (4) connected to the sedimentation tank (3), wherein the grease trap (4) is configured to separate grease from the sewage; A photocatalytic pool (5) is connected to the grease trap (4), and the photocatalytic pool (5) is configured to sterilize sewage; A filter device (6), the input end of which is connected to the photocatalytic pool (5), and the filter device (6) is configured to remove suspended matter and odor from the sewage; The reuse water pool (7) is connected to the output end of the filtering device (6), and the reuse water pool (7) is configured to supply water to the car washing device.

2. The car washing machine water circulation device according to claim 1, characterized in that: A submersible mixer (11) is arranged in the water collection tank (1).

3. The car washing machine water circulation device according to claim 1, characterized in that: The water collection tank (1) is provided with a first water pump (12), and the first water pump (12) is capable of pumping sewage in the water collection tank (1) into the sedimentation tank (3).

4. The car washing machine water circulation device according to claim 1, characterized in that: A plurality of partitions (31) are arranged at intervals in the horizontal direction in the sedimentation tank (3), each of the partitions (31) is provided with a through water hole, and the water holes on two adjacent partitions (31) are at different heights.

5. The car washing machine water circulation device according to claim 1, characterized in that: A separation tube (41) is provided in the grease trap (4), one end of the separation tube (41) is immersed below the liquid level of the grease trap (4), and the other end is connected to the photocatalytic tank (5).

6. The car washing machine water circulation device according to claim 1, characterized in that: The photocatalytic pool (5) is provided with a second water pump (51), and the second water pump (51) is capable of pumping sewage in the photocatalytic pool (5) into the filtering device (6).

7. The water circulation device for a car washer according to claim 1, characterized in that: The filtering device (6) comprises: A sand filter tank (61), the input end of which is connected to the photocatalytic pool (5); The input end of the carbon filter tank (62) is connected to the output end of the sand filter tank (61), and the output end of the carbon filter tank (62) is connected to the recycled water pool (7).

8. The car washing machine water circulation device according to claim 1, characterized in that: The reuse water pool (7) is provided with a third water pump (71), and the third water pump (71) is capable of pumping water from the reuse water pool (7) into the filtering device (6).

9. The water circulation device for a car washer according to claim 1, characterized in that: A pH detection probe (13) is provided in the water collection tank (1).

10. The car washing machine water circulation device according to any one of claims 1 to 9, characterized in that: It also includes a drainage ditch (8), and the water collection tank (1), the sedimentation tank (3), the oil separator (4), the photocatalytic tank (5), the filtering device (6) and the recycled water tank (7) can all be selectively connected to the drainage ditch (8).

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