Motor home vehicle-mounted closestool purification system based on microalgae culture

Abstract

The utility model discloses a limo vehicle-mounted closestool purification system based on microalgae culture. The limo vehicle-mounted closestool purification system comprises a closestool main body, a circulating water tank, a waste treatment device and a microalgae culture device, the waste treatment device comprises a cabin body, a separation mesh plate is arranged in the cabin body, and a first outlet and a second outlet are formed in the side wall of the cabin body; the first outlet is connected with a fermentation cabin, and a valve is arranged on the first outlet; the second outlet is connected with a bioreactor; the microalgae culture device is provided with a discharge port, the discharge port is connected with the bioreactor through a pipeline, the outlet end of the bioreactor is connected with the circulating water tank through a pipeline, and the pipeline for connecting the bioreactor with the circulating water tank is provided with a delivery pump. According to the vehicle-mounted closestool system, liquid excrement is decomposed in an environment-friendly mode through the natural metabolism capacity of microalgae, harmless treatment of the excrement is achieved, and water in the excrement can be filtered, recycled and reused through connection between the bioreactor and the circulating water tank.

Description

Technical Field

[0001] This utility model relates to the fields of biotechnology and environmental water treatment technology, specifically to a mobile home toilet purification system based on microalgae cultivation. Background Technology

[0002] With the rapid development of new energy vehicles and RV tourism, in-vehicle toilet systems have become an indispensable part of modern transportation. Currently, in-vehicle toilet systems on the market typically use chemical or physical methods to treat waste, such as chemical disinfectants, ultraviolet sterilization, and high-temperature incineration. However, these methods have certain limitations in terms of treatment effectiveness, for example:

[0003] Inadequate waste treatment often results in the inability to completely decompose organic matter, and the use of chemical disinfectants may lead to adverse reactions, producing harmful gases or liquids that can cause secondary pollution to the environment, especially in enclosed or semi-enclosed vehicle environments. In addition, vehicle toilet systems also consume water for flushing, and the flushing water is mostly for single use, which can easily lead to water waste. Utility Model Content

[0004] The purpose of this invention is to provide a vehicle-mounted toilet purification system based on microalgae cultivation, in order to solve the problem that existing vehicle-mounted toilets lack the technical means for environmentally friendly treatment of excrement.

[0005] To solve the above-mentioned technical problems, this utility model specifically provides the following technical solution:

[0006] A mobile home toilet purification system based on microalgae cultivation includes a toilet body, a circulating water tank above the toilet body, a waste treatment device below the toilet body, and a microalgae cultivation device on one side of the circulating water tank.

[0007] The waste treatment device includes a chamber, in which a separation mesh plate is inclined from left to right. A first outlet is provided on the right side wall of the chamber, and a second outlet is provided on the side wall of the chamber below the first outlet. The first outlet is connected to a fermentation chamber, and a valve is provided on the first outlet. The second outlet is connected to a bioreactor.

[0008] The microalgae cultivation device is equipped with an outlet, which is connected to the bioreactor via a pipe. The outlet of the bioreactor is connected to the circulating water tank via a pipe, and a delivery pump is installed on the pipe connecting the bioreactor to the circulating water tank.

[0009] As a preferred embodiment of this utility model, the microalgae cultivation device includes a container body, a nutrient solution storage tank is provided at the bottom of the container body, the nutrient solution storage tank is connected to the bottom of the container body through a pipe, a light source body is provided at the top inside the container body, a stirring paddle is provided inside the container body, the stirring paddle is connected to a drive motor, the drive motor is located at the top of the container body, and a feeding port is provided on the container body.

[0010] As a preferred embodiment of this utility model, a conveying pipe is connected to the valve, and a bacteria supply box is connected to the end of the conveying pipe away from the valve.

[0011] The valve includes a pipe body, a valve plate is provided on the pipe body, an opening is provided on the pipe body to cooperate with the valve plate, and a sealing block is provided at the end of the valve plate located inside the pipe body along the axial direction of the pipe body.

[0012] The conveying pipeline is connected to the pipe body and has an inlet formed on the pipe body;

[0013] The valve plate closes the pipe body radially downwards, and the sealing block on the valve plate opens the inlet.

[0014] As a preferred embodiment of this utility model, a deodorizing device is provided below the gasket of the toilet body. The deodorizing device includes an air pump and a jacket body. The surface of the jacket body facing the inside of the toilet body has through holes. An activated carbon plate is provided inside the jacket body. The air inlet of the air pump is connected to the jacket body through a pipe, and the air outlet of the air pump is connected to the delivery pipe through a pipe.

[0015] As a preferred embodiment of this utility model, the outlet end of the bioreactor is provided with an end pipe, the top of the end pipe is connected to a return pipe through an arc-shaped pipe, the end of the return pipe away from the arc-shaped pipe is connected to the fermentation chamber, a filter pipe is provided on the upper part of the arc-shaped pipe, a filter body is provided in the filter pipe, the filter pipe is coaxial with the return pipe, and a butterfly valve is provided at the connection between the return pipe and the arc-shaped pipe.

[0016] The inner diameter of the end pipe is smaller than the inner diameter of the return pipe.

[0017] Compared with the prior art, this utility model has the following advantages:

[0018] The vehicle-mounted toilet system provided in this embodiment can fully decompose liquid excrement in a relatively environmentally friendly way through the natural metabolic capacity of microalgae, achieving harmless treatment of excrement. It can also filter, recycle, and reuse water from excrement through the connection between the bioreactor and the circulating water tank, and can separate solid and liquid substances in excrement for separate environmentally friendly treatment, making this vehicle-mounted toilet system suitable for use during long-distance travel. Attached Figure Description

[0019] To more clearly illustrate the embodiments of this utility model or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings in the following description are merely exemplary, and those skilled in the art can derive other embodiments based on the provided drawings without creative effort.

[0020] Figure 1 This is a schematic diagram of the overall structure of an embodiment of the present utility model;

[0021] Figure 2 This is a schematic diagram of the left cross-sectional structure of an embodiment of the present invention.

[0022] The labels in the diagram represent the following:

[0023] 10-Toilet body; 11-Washer ring; 20-Circulating water tank; 30-Waste treatment device; 40-Microalgae cultivation device; 50-Deodorization device; 60-End pipe; 70-Arc-shaped pipe; 80-Return pipe; 90-Filter pipe; 100-Butterfly valve;

[0024] 31-Chamber; 32-Separation mesh plate; 33-First outlet; 34-Second outlet; 35-Fermentation chamber; 36-Valve; 37-Bioreactor; 38-Transfer pipeline; 39-Inoculum supply box;

[0025] 361-Pipe body; 362-Valve plate; 363-Opening; 364-Sealing block; 365-Inlet;

[0026] 41-Discharge port; 42-Transfer pump; 43-Container body; 44-Nutrient solution storage tank; 45-Light source body; 46-Agitator; 47-Drive motor; 48-Feeding port;

[0027] 51-Air pump; 52-Jacket body; 53-Through hole; 54-Activated carbon plate. Detailed Implementation

[0028] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0029] like Figure 1 and Figure 2 As shown, this embodiment provides a RV-mounted toilet purification system based on microalgae cultivation, including a toilet body 10, a circulating water tank 20 above the toilet body 10, a waste treatment device 30 below the toilet body 10, and a microalgae cultivation device 40 above the waste treatment device 30.

[0030] The waste treatment device 30 includes a chamber 31. A separation mesh plate 32 is inclined from left to right within the chamber 31. A first outlet 33 is located on the right side wall of the chamber 31, where the separation mesh plate 32 is situated. A second outlet 34 is located on the side wall of the chamber 31 below the first outlet 33. The first outlet 33 is connected to a fermentation chamber 35, and a valve 36 is installed on the first outlet 33. The second outlet 34 is connected to a bioreactor 37.

[0031] The microalgae cultivation device 40 is equipped with an outlet 41, which is connected to the bioreactor 37 via a pipe. The outlet end of the bioreactor 37 is connected to the circulating water tank 20 via a pipe. A transfer pump 42 is installed on the pipe connecting the bioreactor 37 to the circulating water tank 20.

[0032] The vehicle-mounted toilet system provided in this embodiment can fully decompose liquid excrement in a relatively environmentally friendly way through the natural metabolic capacity of microalgae, thereby achieving the harmless treatment of excrement. It can also filter, recycle, and reuse water in excrement through the connection between the bioreactor 37 and the circulating water tank 20, and can separate solids and liquids in excrement for separate treatment.

[0033] Therefore, this embodiment provides a microalgae cultivation device 40 example:

[0034] The container includes a main body 43, a nutrient solution storage tank 44 at the bottom of the main body 43, the nutrient solution storage tank 44 being connected to the bottom of the main body 43 via a pipe, a light source main body 45 being installed at the top inside the main body 43, a stirring paddle 46 being installed inside the main body 43, the stirring paddle 46 being connected to a drive motor 47 being installed at the top of the main body 43, and a feeding port 48 being installed on the main body 43 to facilitate the introduction of new microalgae strains into the main body 43.

[0035] In this embodiment, the toilet body 10 itself has the flushing function of a general toilet, and the structure that triggers the flushing function is set in the circulating water tank 20, that is, the drain valve is set in the circulating water tank 20.

[0036] In this embodiment, a deodorizing device 50 is provided below the gasket 11 of the toilet body 10. The deodorizing device 50 includes an air pump 51 and a jacket body 52. ​​The surface of the jacket body 52 facing the inside of the toilet body 10 has through holes 53. An activated carbon plate 54 is provided inside the jacket body 52. ​​The air inlet of the air pump 51 is connected to the jacket body 52 through a pipe, and the air outlet of the air pump 51 is connected to the delivery pipe 38 through a pipe.

[0037] When the toilet is used or after it is turned on by the air pump 51, the gas inside the toilet body 10 enters the jacket body 52 through the through hole 53 and is filtered by the activated carbon plate 54. The gas discharged by the air pump 51 can be transported to the delivery pipe 38 through the pipeline, which can be used to transport the powdered compound bacteria in the inoculum box 39 to the fermentation chamber 35 and come into contact with the excrement in the fermentation chamber 35.

[0038] Among them, the powdered compound microbial strains are anaerobic microorganisms or strains that can decompose solid excrement.

[0039] Of course, in actual operation, valve 36 is used to connect the pipeline 38 and the fermentation chamber 35.

[0040] A delivery pipe 38 is connected to the valve 36, and a bacteria supply box 39 is connected to the end of the delivery pipe 38 away from the valve 36.

[0041] Valve 36 includes a pipe body 361, on which a valve plate 362 is disposed. Specifically, valve plate 362 is a disc shape with the same cross-section as pipe body 361. Pipe body 361 has an opening 363 that mates with valve plate 362. The end of valve plate 362 located inside pipe body 361 has a sealing block 364 extending axially along pipe body 361. Sealing block 364 is shaped to mate with inlet 365, but the width of sealing block 364 (compared to the diameter of valve plate 362) is smaller than the diameter of valve plate 362. Conveying pipe 38 connects to pipe body 361 and forms inlet 365 on pipe body 361. Valve plate 362 closes pipe body 361 radially downwards, while sealing block 364 on valve plate 362 opens inlet 365.

[0042] At this time, the valve plate 362 enters the tube 361 through the opening 363 under the drive of the linear motor, and does not completely close the tube 361. The air pump 51 starts to work, and the bacteria are blown into the tube 361. At this time, the bacteria may accumulate on the valve plate 362. After the valve plate 362 enters the opening 363, the bacteria accumulated on the valve plate 362 will be scraped off.

[0043] Of course, this implementation needs to take into account the gas flow temperature when the air pump 51 is working. This can be achieved by setting an active exhaust valve on the fermentation chamber 35, which is linked to the operation of the air pump 51 to ensure the stability of the gas pressure in the system.

[0044] In this embodiment, the air pump 51 can not only extract odorous air from the toilet body 10 to prevent it from entering the air environment where the vehicle toilet system is used, but also transport bacteria.

[0045] In this embodiment, to separate the microalgae after cultivation and the purified water, the water pumped into the circulating water tank 20 has been filtered to remove the microalgae. An end pipe 60 is installed at the outlet end of the bioreactor 37 to... Figure 2 As shown in the diagram, the end pipe 60 is vertically upward. The top of the end pipe 60 is connected to the return pipe 80 through the arc-shaped pipe 70. The end of the return pipe 80 away from the arc-shaped pipe 70 is connected to the fermentation chamber 35. A filter pipe 90 is installed on the upper part of the arc-shaped pipe 70. A filter body is installed in the filter pipe 90. The filter pipe 90 and the return pipe 80 are coaxial. A butterfly valve 100 is installed at the connection between the return pipe 80 and the arc-shaped pipe 70.

[0046] The filter pipe 90 is connected to the circulating water tank 20 by a suction pump or water pump. The purpose of this pump is to draw the purified water from the microalgae culture in the bioreactor 37 into the circulating water tank 20. During this process, the filter body, such as activated carbon or filter cartridge, is filled in the filter pipe 90. The mesh size of the filter cartridge is set to filter microalgae, and the microalgae are trapped at the connection between the filter pipe 90 and the arc-shaped pipe 70. When the microalgae accumulate to a certain volume or weight, they will fall into the return pipe 80. At this time, the butterfly valve 100 installed on the return pipe 80 is closed. The butterfly valve 100 needs to be sealed to close the return pipe 80.

[0047] When the suction pump or water pump stops working and the butterfly valve 100 is opened, the accumulated microalgae will fall into the fermentation chamber 35.

[0048] Of course, in this embodiment, resistance wire heaters can be installed on the biogenerator 37 and the arc tube 70 as needed. In this way, the resistance wire can provide a suitable temperature for the biogenerator 37 through the temperature controller, and the microalgae trapped in the arc tube 70 can also be dried.

[0049] In this embodiment, the inner diameter of the end pipe 60 needs to be smaller than the inner diameter of the return pipe 80 to reduce the pressure required by the pump body when drawing liquid from the bioreactor 37, and also to prevent the drawn liquid from flowing back into the end pipe 60.

[0050] Furthermore, the fermentation chamber 35 in this embodiment can be designed to be detachable, thus meeting the needs of later disassembly and cleaning. Of course, a pressure relief valve or venting valve also needs to be installed on the fermentation chamber 35.

[0051] Furthermore, the bioreactor 37 involved in this embodiment can be an existing liquid excrement bioreactor or a disposable tank structure bioreactor. The purpose of the bioreactor 37 in this embodiment is to provide a place for the cultured microalgae to come into contact with the liquid excrement. The specific functions and structure can be designed according to actual needs.

[0052] The above embodiments are merely exemplary embodiments of this application and are not intended to limit this application. The scope of protection of this application is defined by the claims. Those skilled in the art can make various modifications or equivalent substitutions to this application within its substance and scope of protection, and such modifications or equivalent substitutions should also be considered to fall within the scope of protection of this application.

Claims

1. A mobile home toilet purification system based on microalgae cultivation, characterized in that, Includes a toilet body (10), a circulating water tank (20) is provided above the toilet body (10), a waste treatment device (30) is provided below the toilet body (10), and a microalgae cultivation device (40) is provided on one side of the circulating water tank (20). The waste treatment device (30) includes a chamber (31), in which a separation mesh plate (32) is inclined from left to right. A first outlet (33) is provided on the right side of the separation mesh plate (32) on the side wall of the chamber (31), and a second outlet (34) is provided on the side wall of the chamber (31) below the first outlet (33). The first outlet (33) is connected to a fermentation chamber (35), and a valve (36) is provided on the first outlet (33). The second outlet (34) is connected to a bioreactor (37). The microalgae cultivation device (40) is provided with an outlet (41), which is connected to the bioreactor (37) through a pipe. The outlet end of the bioreactor (37) is connected to the circulating water tank (20) through a pipe. A transfer pump (42) is provided on the pipe connecting the bioreactor (37) to the circulating water tank (20).

2. The RV toilet purification system based on microalgae cultivation according to claim 1, characterized in that, The microalgae cultivation device (40) includes a container body (43), a nutrient solution storage tank (44) is provided at the bottom of the container body (43), the nutrient solution storage tank (44) is connected to the bottom of the container body (43) through a pipe, a light source body (45) is provided at the top inside the container body (43), a stirring paddle (46) is provided inside the container body (43), the stirring paddle (46) is connected to a drive motor (47), the drive motor (47) is provided at the top of the container body (43), and a feeding port (48) is provided on the container body (43).

3. The RV toilet purification system based on microalgae cultivation according to claim 2, characterized in that, A delivery pipe (38) is connected to the valve (36), and a bacteria supply box (39) is connected to the end of the delivery pipe (38) away from the valve (36); The valve (36) includes a pipe body (361), a valve plate (362) is provided on the pipe body (361), an opening (363) is provided on the pipe body (361) to cooperate with the valve plate (362), and a sealing block (364) along the axial direction of the pipe body (361) is provided at the end of the valve plate (362) located inside the pipe body (361). The conveying pipe (38) is connected to the pipe body (361) and has an inlet (365) formed on the pipe body (361); Wherein, the valve plate (362) closes the tube body (361) radially downward, and the sealing block (364) on the valve plate (362) opens the inlet (365).

4. The RV toilet purification system based on microalgae cultivation according to claim 3, characterized in that, A deodorizing device (50) is provided below the gasket (11) of the toilet body (10). The deodorizing device (50) includes an air pump (51) and a jacket body (52). The surface of the jacket body (52) facing the inside of the toilet body (10) has through holes (53). An activated carbon plate (54) is provided inside the jacket body (52). The air inlet of the air pump (51) is connected to the jacket body (52) through a pipe. The air outlet of the air pump (51) is connected to the delivery pipe (38) through a pipe.

5. A mobile home toilet purification system based on microalgae cultivation according to claim 4, characterized in that, The bioreactor (37) is provided with an end pipe (60) at its outlet end. The top of the end pipe (60) is connected to a return pipe (80) via an arc-shaped pipe (70). The end of the return pipe (80) away from the arc-shaped pipe (70) is connected to the fermentation chamber (35). A filter pipe (90) is provided on the arc-shaped pipe (70). A filter body is provided in the filter pipe (90). The filter pipe (90) and the return pipe (80) are coaxial. A butterfly valve (100) is provided at the connection between the return pipe (80) and the arc-shaped pipe (70). The inner diameter of the end pipe (60) is smaller than the inner diameter of the return pipe (80).

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