Zero-discharge vacuum excrement collecting system and treatment method

Abstract

The invention provides a zero-discharge vacuum excrement collecting system which comprises at least one toilet stool, a water supply port of the toilet stool is connected with a water source through a water supply pipe, the water supply pipe is connected with a flushing valve, a sewage draining port of the toilet stool is connected with a vacuum tank through a sewage draining pipe, and the sewage draining pipe is connected with a negative pressure sewage draining valve. A switch valve A is arranged on a pipeline between the negative pressure blow-down valve and the vacuum tank, the bottom of the vacuum tank is connected with an inlet of a vacuum blow-down pump, and dirt is fed into a dirt treatment system through the vacuum blow-down pump. According to the invention, the water consumption for flushing the toilet is greatly saved, the sewage concentration is improved, the resource utilization is facilitated, and the system is particularly used in water-deficient areas or areas without municipal pipe networks.

Description

Technical Field

[0001] The invention belongs to the field of toilets, and in particular relates to a zero-emission vacuum feces collection system and a treatment method. Background Art

[0002] Existing public toilets mostly use flush toilets or siphon toilets. After each use, a large amount of clean water is needed to flush the dirt into the sewer pipes, resulting in a serious waste of water resources. At the same time, it is necessary to build a complex municipal pipe network and sewage treatment plant to collect and treat sewage, and the construction and treatment costs are high. Human feces and urine are high-quality fertilizers in themselves, but due to the large amount of dilution with water, the concentration is very low, and the resource utilization is not meaningful, resulting in a waste of resources. Summary of the invention

[0003] In view of the above-mentioned technical problems, the present invention proposes a zero-emission vacuum feces collection system and treatment method, which adopts vacuum feces collection technology to complete the flushing and sewage discharge of the toilet with a water consumption of no more than 0.7L. At the same time, the urinal adopts a flush-free urinal, which further reduces the flushing water volume of the toilet and increases the concentration of waste.

[0004] In order to achieve the above-mentioned purpose, the technical solution adopted by the present invention is: a zero-emission vacuum feces collection system, including at least one toilet, the water supply port of the toilet is connected to the water source through a water supply pipe, the water supply pipe is connected to a flush valve, the sewage outlet of the toilet is connected to a vacuum tank through a sewage pipe, the sewage pipe is connected to a negative pressure sewage valve, a switch valve A is arranged on the pipeline between the negative pressure sewage valve and the vacuum tank, the bottom of the vacuum tank is connected to the inlet of a vacuum sewage pump, and the sewage is sent into the sewage treatment system through the vacuum sewage pump.

[0005] Preferably, when there are more than two toilets, the toilets are connected in parallel, and each parallel branch is provided with a negative pressure drain valve and a switch valve A.

[0006] Preferably, a bypass pipe is provided on the top of the vacuum tank, and a vacuum switch, a pressure gauge and a switch valve B are sequentially provided on the bypass pipe.

[0007] Preferably, the sewage treatment system includes a sewage tank, a sewage pump is connected to the lower part of the side of the sewage tank, a circulation port is arranged on the side of the sewage tank opposite to the sewage pump, the water outlet of the sewage pump is connected to the circulation port through a circulation pipe to form a circulation loop, a pressure sensor is arranged on the circulation pipe, an electric valve is arranged near the circulation port, a sewage outlet is arranged above the electric valve, and a switch valve C is arranged on the sewage outlet.

[0008] Preferably, liquid level sensors are respectively arranged at different height positions of the waste tank, and the liquid level is displayed by a liquid level indicator light.

[0009] Preferably, a tee is provided on the top of the dirt box, the downward port of the tee is connected to the top of the dirt box, the upward port of the tee is connected to the exhaust pipe, and the port on the side of the tee is connected to the sewage outlet of the vacuum sewage pump through a pipeline.

[0010] Another object of the present invention is to provide a treatment method using a zero-discharge vacuum feces collection system. After the system is powered on, the vacuum switch detects the vacuum degree in the vacuum tank. If the set requirement is not met, the vacuum sewage pump starts to build vacuum. When the vacuum degree in the vacuum tank reaches the set value, the vacuum sewage pump stops working and the system is in a standby state. The system triggers the flush button, the flush valve opens to flush the toilet with high pressure, the negative pressure drain valve opens, and the waste is discharged into the vacuum tank under the action of negative pressure. The negative pressure drain valve closes, and the flush valve opens to replenish water to the toilet for the second time. If the vacuum degree of the vacuum tank is lower than the set value of the vacuum switch, the vacuum sewage pump starts again to establish vacuum, so that the vacuum degree reaches the set value, and at the same time, the waste is discharged into the waste tank and the system is in standby mode.

[0011] Preferably, the sewage discharge pipeline of the vacuum sewage pump is connected to the three-way pipe. During the sewage discharge and vacuum establishment process, the exhaust gas enters the exhaust pipe, and the sewage enters the sewage box under the action of gravity. The exhaust gas does not enter the sewage box, but is discharged into the air through the exhaust pipe, thereby reducing the overflow of malodorous gases in the sewage box and reducing odor.

[0012] Preferably, in order to prevent the accumulation of dirt in the sewage tank, an interval time is set and the sewage pump is automatically started to circulate the dirt in the sewage tank; when the system detects through the liquid level sensor that the dirt in the sewage tank reaches 80% of the liquid level, the system will remotely remind and notify sewage discharge; when the dirt reaches 100% of the liquid level, the system will remotely alarm and the toilet will stop using.

[0013] Preferably, when the sewage treatment system discharges sewage, the manure truck pipeline is connected to the switch valve C, and the switch valve C is opened, and the sewage discharge button is pressed. The system first closes the electric valve. After the electric valve is closed, the sewage pump starts to discharge the sewage into the manure truck. During the sewage discharge process, the sewage discharge button is pressed again or the liquid level in the sewage tank reaches 0% or the pressure sensor detects that the pressure is lower than the set pressure, and the sewage discharge stops.

[0014] Compared with the prior art, the advantages and positive effects of the present invention are: Greatly reduces the water consumption of toilets and saves fresh water resources; Reduce the cost of building municipal pipe networks and the treatment costs of sewage treatment plants; High-concentration sewage can be easily utilized as a resource, such as being used for fermentation to make organic fertilizer and produce biogas. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 This is a schematic diagram of the structure of the vacuum feces collection system of the present invention; In the above figures: 1. flush button; 2. toilet; 3. negative pressure drain valve; 4. switch valve A; 5. drain pipe; 6. flush valve; 7. water supply pipe; 8. vacuum unit: 81. vacuum tank; 82. vacuum drain pump; 83. bypass pipe; 84. vacuum switch; 85. pressure gauge; 86. switch valve B; 9. sewage treatment system; 91. pressure sensor; 92. circulation pipe; 93. sewage pump; 94. sewage tank; 95. circulation port; 96 electric valve; 97. switch valve C; 98. liquid level indicator light; 99. drain button; 910. liquid level sensor; 911. three-way pipe; 912. exhaust pipe; 10. flush-free urinal. DETAILED DESCRIPTION

[0016] The present invention is described in detail below by way of exemplary embodiments. However, it should be understood that elements, structures, and features in one embodiment may also be beneficially combined in other embodiments without further description.

[0017] like Figure 1 As shown, a zero-discharge vacuum feces collection system includes at least one toilet 2, the water supply port of the toilet 2 is connected to a water source through a water supply pipe 7, the water supply pipe 7 is connected to a flush valve 6, the sewage outlet of the toilet 2 is connected to a sewage pipe 5, and the sewage pipe 5 is connected to a negative pressure sewage valve 3. When there are more than two toilets 2, the toilets 2 are connected in parallel, and each parallel branch is provided with a negative pressure sewage valve 3 and a switch valve A4; The sewage outlet of the toilet 2 is connected to a vacuum tank 81 through a sewage pipe 5. A switch valve A4 is provided on the pipeline between the negative pressure sewage valve 3 and the vacuum tank 81. A bypass pipe 83 is provided on the top of the vacuum tank 81. A vacuum switch 84, a pressure gauge 85 and a switch valve B86 are provided on the bypass pipe 83 in sequence. The bottom of the vacuum tank 81 is connected to the inlet of a vacuum sewage pump 82. It also includes a sewage treatment system 9, a vacuum sewage pump 82 is connected to the sewage treatment system 9, and sewage is sent into the sewage treatment system 9 through the vacuum sewage pump 82; The sewage treatment system 9 includes a sewage tank 94, a sewage pump 93 is connected to the lower part of the side of the sewage tank 94, a circulation port 95 is arranged on the side of the sewage tank 94 opposite to the sewage pump 93, the water outlet of the sewage pump 93 is connected to the circulation port 95 through a circulation pipe 92 to form a circulation loop, a pressure sensor 91 is arranged on the circulation pipe 92, an electric valve 96 is arranged near the circulation port 95, a sewage outlet is arranged above the electric valve 96, and a switch valve C97 is arranged on the sewage outlet, and liquid level sensors 910 are arranged at different heights of the sewage tank 94, and the liquid level is displayed by a liquid level indicator 98; A three-way pipe 911 is provided on the top of the dirt box 94. The downward port of the three-way pipe 911 is connected to the top of the dirt box 94, the upward port of the three-way pipe 911 is connected to the exhaust pipe 912, and the side port of the three-way pipe 911 is connected to the sewage outlet of the vacuum sewage pump 82 through a pipeline.

[0018] Another object of the present invention is to provide a treatment method using a zero-discharge vacuum feces collection system, specifically; After the system is powered on, the vacuum switch 84 detects the vacuum degree in the vacuum tank 81. If the vacuum degree in the vacuum tank 81 does not meet the set requirements, the vacuum sewage pump 82 starts to build vacuum. When the vacuum degree in the vacuum tank 81 reaches the set value, the vacuum sewage pump 82 stops working and the system is in standby mode. The system triggers the flush button 1, the flush valve 6 opens to flush the toilet 2 with high pressure, the negative pressure drain valve 3 opens, and the waste is discharged into the vacuum tank 81 under the action of negative pressure. The negative pressure drain valve 3 is closed, and the flush valve 6 opens to replenish the toilet with water for the second time. If the vacuum degree of the vacuum tank 81 is lower than the set value of the vacuum switch 84, the vacuum sewage pump 82 starts again to establish a vacuum so that the vacuum degree reaches the set value, and at the same time, the waste is discharged into the waste tank 94 and the system is in standby mode.

[0019] The sewage discharge pipeline of the vacuum sewage pump 82 is connected to the three-way pipe 911. During the sewage discharge and vacuum establishment process, the exhaust gas enters the exhaust pipe 912, and the sewage enters the sewage tank 94 under the action of gravity. The exhaust gas does not enter the sewage tank, but is discharged into the air through the exhaust pipe 912, reducing the overflow of the malodorous gas in the sewage tank 94, thereby reducing the odor.

[0020] In order to prevent the dirt in the dirt tank 94 from accumulating, an interval time is set and the sewage pump 93 is automatically started to circulate the dirt in the dirt tank 94; when the system detects through the liquid level sensor 910 that the dirt in the dirt tank 94 reaches 80% of the liquid level, the system will remotely remind and notify sewage discharge; when the dirt reaches 100% of the liquid level, the system will remotely alarm and the toilet 2 will stop using.

[0021] When the sewage treatment system discharges sewage, the sewage truck pipeline is connected to the switch valve C97, and the switch valve C97 is opened, and the sewage discharge button 99 is pressed. The system first closes the electric valve 96. After the electric valve 96 is closed, the sewage pump 93 starts to start and discharges the sewage into the sewage truck. During the sewage discharge process, the sewage discharge button 99 is pressed again or the liquid level in the sewage tank 94 reaches 0% or the pressure sensor 91 detects that the pressure is lower than the set pressure, and the sewage discharge stops.

[0022] In multi-storey buildings, urine from the non-flush urinal 11 is discharged into a waste tank by gravity.

[0023] The above is only a specific embodiment of the present invention, but the protection scope of the present invention is not limited thereto. Any person skilled in the art can easily think of changes or substitutions within the technical scope disclosed by the present invention, which 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 of the claims.

Claims

1. A zero-emission vacuum feces collection system, characterized in that: The invention comprises at least one toilet, wherein the water supply port of the toilet is connected to a water source through a water supply pipe, the water supply pipe is connected to a flush valve, the sewage outlet of the toilet is connected to a vacuum tank through a sewage pipe, the sewage pipe is connected to a negative pressure sewage valve, a switch valve A is arranged on the pipeline between the negative pressure sewage valve and the vacuum tank, the bottom of the vacuum tank is connected to the inlet of a vacuum sewage pump, and the sewage is sent into a sewage treatment system through the vacuum sewage pump.

2. A zero-emission vacuum feces collection system according to claim 1, characterized in that: When there are more than two toilets, the toilets are connected in parallel, and each parallel branch is provided with a negative pressure drain valve and a switch valve A.

3. The zero-discharge vacuum feces collection system according to claim 1, characterized in that: A bypass pipe is arranged on the top of the vacuum tank, and a vacuum switch, a pressure gauge and a switch valve B are arranged on the bypass pipe in sequence.

4. The zero-discharge vacuum feces collection system according to claim 1, characterized in that: The sewage treatment system includes a sewage tank, a sewage pump is connected to the lower part of the side of the sewage tank, a circulation port is arranged on the side of the sewage tank opposite to the sewage pump, the water outlet of the sewage pump is connected to the circulation port through a circulation pipe to form a circulation loop, a pressure sensor is arranged on the circulation pipe, an electric valve is arranged near the circulation port, a sewage outlet is arranged above the electric valve, and a switch valve C is arranged on the sewage outlet.

5. A zero-discharge vacuum feces collection system according to claim 4, characterized in that: Liquid level sensors are respectively arranged at different height positions of the waste tank, and the liquid level is displayed by a liquid level indicator light.

6. A zero-discharge vacuum feces collection system according to claim 4, characterized in that: A tee is provided on the top of the dirt box, the downward port of the tee is connected to the top of the dirt box, the upward port of the tee is connected to the exhaust pipe, and the port on the side of the tee is connected to the sewage outlet of the vacuum sewage pump through a pipeline.

7. A treatment method, using the zero-discharge vacuum feces collection system according to any one of claims 1 to 6, characterized in that: After the system is powered on, the vacuum switch detects the vacuum degree in the vacuum tank. If it does not meet the set requirements, the vacuum sewage pump starts to build vacuum. When the vacuum degree in the vacuum tank reaches the set value, the vacuum sewage pump stops working and the system is in standby mode. The system triggers the flush button, the flush valve opens to flush the toilet with high pressure, the negative pressure drain valve opens, and the waste is discharged into the vacuum tank under the action of negative pressure. The negative pressure drain valve closes, and the flush valve opens to replenish water to the toilet for the second time. If the vacuum degree of the vacuum tank is lower than the set value of the vacuum switch, the vacuum sewage pump starts again to establish vacuum, so that the vacuum degree reaches the set value, and at the same time, the waste is discharged into the waste tank and the system is in standby mode.

8. The processing method according to claim 7, characterized in that: The sewage pipeline of the vacuum sewage pump is connected to the three-way pipe. During the sewage discharge and vacuum establishment process, the exhaust gas enters the exhaust pipe, and the sewage enters the sewage box under the action of gravity. The exhaust gas does not enter the sewage box, but is discharged into the air through the exhaust pipe, reducing the overflow of the malodorous gas in the sewage box, thereby reducing the odor.

9. The processing method according to claim 7, characterized in that: To prevent the accumulation of dirt in the sewage tank, an interval is set and the sewage pump starts automatically to circulate the dirt in the sewage tank. When the system detects that the dirt in the sewage tank reaches 80% of the liquid level through the liquid level sensor, the system will remotely remind and notify sewage discharge. When the dirt reaches 100% of the liquid level, the system will remotely alarm and the toilet will stop using.

10. The processing method according to claim 7, characterized in that: When the sewage treatment system discharges sewage, the manure truck pipeline is connected to the switch valve C, and the switch valve C is opened. The sewage discharge button is pressed, and the system first closes the electric valve. After the electric valve is closed, the sewage pump starts to discharge the sewage into the manure truck. During the sewage discharge process, the sewage discharge button is pressed again or the liquid level in the sewage tank reaches 0% or the pressure sensor detects that the pressure is lower than the set pressure, and the sewage discharge stops.

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