An apartment kitchen waste treatment system using siphon discharge

Abstract

The invention discloses an apartment kitchen waste treatment system utilizing siphon discharge, comprising: a plurality of kitchen waste crushers, kitchen waste is poured into the kitchen waste crusher through a feed port and then ground with water, the discharge port of the kitchen waste crusher is connected to the port of a horizontal pipe fitting of a gravity pipe; the horizontal pipe fitting is connected to a vertical pipe fitting and is slightly inclined toward the vertical pipe fitting, the upper end of the vertical pipe fitting extends out of the roof and is connected to the atmosphere; a group of upper and lower liquid level sensors are arranged at the lower end of the vertical pipe fitting, the height of the lower liquid level sensor is higher than the height of the interface between the bottom horizontal pipe fitting and the vertical pipe fitting; the end of the vertical pipe fitting is connected to the siphon main pipe through a siphon branch pipe with a quick-opening valve; the discharge port of the siphon main pipe is connected to a negative pressure collection tank. The invention adopts fully enclosed transmission, the pipeline layout is relatively flexible and the transmission length can be set as needed, the wastewater is transported by atmospheric pressure difference without the need to use a vacuum pump for a long time, and the energy consumption is very low and the noise is low.

Description

Technical Field

[0001] The invention relates to the field of restaurant kitchen waste treatment, and in particular to an apartment restaurant kitchen waste treatment system utilizing siphon discharge. Background Art

[0002] At present, many developers of residential communities have installed garbage disposals under each kitchen sink. The treated kitchen waste is flushed with water and discharged into the municipal pipeline through the drain pipe with toilet water. On the one hand, the kitchen waste cannot be reasonably utilized, and on the other hand, it causes blockage of horizontal pipelines and an increase in the processing load and cost of downstream sewage treatment plants. Of course, more residential communities do not have uniformly installed garbage disposals. The kitchen waste causes rooms, kitchens, roads, and garbage rooms to stink, breed bacteria, and attract mosquitoes.

[0003] In order to solve the above problems, the application publication number CN111441432A discloses a vacuum collection apartment kitchen waste treatment system, including a kitchen waste crusher configured in several residents' homes, a gravity collection pipe, a vacuum collection pipe, a negative pressure storage tank, a sewage pump, a vacuum pump and a dehydrator. Residents put kitchen waste into the garbage kitchen waste crusher, and the kitchen waste is washed into the gravity pipe network by water after being crushed, and gathered at the connection between the gravity pipe and the vacuum pipe. When a certain amount is reached, the vacuum valve opens, and the wastewater containing kitchen waste flows into the negative pressure storage tank under the action of the pressure difference. When the liquid in the storage tank reaches the set liquid level, the sewage pump is started, and the wastewater containing kitchen waste is discharged into the dehydrator for dehydration. However, in this application, since the vacuum collection generally adopts a gas-liquid ratio of 6:1-26:1, a large amount of energy needs to be consumed to evacuate, the vacuum pump needs to be started frequently, or the vacuum tank needs to be large, and the cost is high. Summary of the invention

[0004] In order to overcome the above-mentioned defects of the prior art, the purpose of the present invention is to provide an apartment kitchen waste treatment system using siphon discharge. By means of the principle of siphon discharge, the ground wastewater containing residue in the kitchen waste collection pipe of each apartment unit is transported to the machine room for unified dehydration and oil separation.

[0005] An apartment kitchen waste treatment system utilizing siphon discharge, comprising:

[0006] A plurality of food waste crushers connected to the kitchen sink or food waste feeding port, food waste is poured into the food waste crusher through the feeding port and then ground with water, and the processed waste contains appropriate water, which is convenient for conveying the ground food waste, and the discharge port of the food waste crusher is connected to the port of the horizontal pipe fitting of the gravity pipe;

[0007] The horizontal pipe is connected to the vertical pipe and is slightly inclined toward the vertical pipe. The upper end of the vertical pipe extends out of the roof and is connected to the atmosphere.

[0008] A set of upper and lower liquid level sensors are arranged at the lower end of the vertical pipe, and the height of the lower liquid level sensor is higher than the height of the interface between the bottom horizontal pipe and the vertical pipe;

[0009] The end of the vertical pipe is connected to the siphon main pipe through a siphon branch pipe with a quick-opening valve;

[0010] The discharge port of the siphon main pipe is connected with a negative pressure collection tank.

[0011] In a preferred embodiment of the present invention, a stirring device is installed in the negative pressure collection tank, and a second liquid level sensor and a vacuum degree measuring device are provided;

[0012] The negative pressure collection tank is connected to the vacuum pump through a vacuum pipeline.

[0013] In a preferred embodiment of the present invention, the negative pressure collection tank is connected to the dehydration device via a sewage pipe provided with a sewage pump.

[0014] In a preferred embodiment of the present invention, the solid waste dehydrated by the dehydration device enters the trash can, and the liquid waste enters the water tank through the drain port for further utilization.

[0015] In a preferred embodiment of the present invention, the siphon branch pipe is connected to the siphon main pipe via an elbow at an angle of 45°.

[0016] In a preferred embodiment of the present invention, a water tank can also be provided at the end of the vertical pipe fitting, the water inlet of the water tank is connected to the vertical pipe fitting, the water outlet of the water tank is connected to a siphon branch pipe equipped with a quick-opening valve, and a third liquid level sensor is provided in the water tank.

[0017] The beneficial effects of the present invention are:

[0018] The present invention adopts fully enclosed transmission, the pipeline layout is relatively flexible and the transmission length can be set as needed. The pipeline can be self-cleaning and relies on atmospheric pressure difference to transport wastewater without the need to use a vacuum pump for a long time. The energy consumption is very low and the noise is low. The pipeline installation is very convenient. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 The structure of the present invention is schematically shown Figure 1 .

[0020] Figure 2 The structure of the present invention is schematically shown Figure 2 .

[0021] Figure 3 It is a structural schematic diagram of the water tank of the present invention. DETAILED DESCRIPTION

[0022] like Figure 1 The apartment kitchen waste treatment system using siphon discharge shown in or 2 includes a plurality of kitchen waste grinders 100 connected to a kitchen sink 200a (or a feeding port 200b). The kitchen waste is poured into the grinder through a feeding port 101 and then ground with water (water can be added through a water inlet or other means). The treated waste contains appropriate water to facilitate the transportation of the ground kitchen waste. The discharge port 102 of the kitchen waste grinder 100 is connected to a port 311 of a horizontal pipe 310 (independent of the bathroom drain pipe) of a gravity pipe 300.

[0023] The horizontal pipe 310 is connected to the vertical pipe 320 and is slightly inclined toward the vertical pipe 320 (generally a 1-2% inclination is required). The upper end 321 of the vertical pipe 320 extends out of the roof (for centralized collection, it extends out of the ground) and is connected to the atmosphere.

[0024] A set of upper and lower liquid level sensors 410 and 420 are arranged at the lower end 322 of the vertical pipe 320, and the upper and lower liquid level sensors 410 and 420 are not affected by the water flow coming down from the grinder. The height of the lower liquid level sensor 420 is higher than the height of the interface between the bottommost horizontal pipe 310 and the vertical pipe 320. The end 323 of the vertical pipe 320 is connected to the siphon branch pipe 410 with a quick-opening valve 401 and the siphon main pipe 420 through a horizontal pipe 324; specifically, the siphon branch pipe 410 is connected to the siphon main pipe 420 through a 45° elbow 411.

[0025] A negative pressure collection tank 500 is connected to the discharge port of the siphon main pipe 420. A stirring device 510 is installed in the negative pressure collection tank 500, and a second liquid level sensor 520 and a vacuum degree measuring device 530 are provided; the negative pressure collection tank 500 is connected to a vacuum pump 540 through a vacuum pipe 541. The negative pressure collection tank 500 is connected to a dehydration device 700 through a sewage pipe 600 provided with a sewage pump 610. The solid waste dehydrated by the dehydration device 700 enters a garbage can 710, and the liquid waste enters a water tank 720 through a drainage port for further use.

[0026] The quick-opening valve 401 is of a normally closed type. The solid-containing liquid coming from the food waste shredder 100 will accumulate in the pipe in front of the quick-opening valve 401. When the liquid reaches the maximum liquid level line, the liquid level sensor will trigger the quick-opening valve 401 to open. Under the action of the pressure difference, the liquid is sucked into the siphon pipe 400 and flows into the negative pressure collection tank 500. When the liquid level drops to the low liquid level line, the quick-opening valve 401 is closed again.

[0027] Under the action of pressure difference, the solid-containing liquid finally enters the negative pressure storage tank 500. When the liquid in the tank reaches the set height, the sewage pump starts. When the sewage pump starts, the stirring device starts in advance to make the material uniform. When the liquid level in the tank is lower than the set value, the sewage pump stops and the stirring device stops working.

[0028] As the vacuum degree in the air leakage or liquid discharge pipe decreases, start the vacuum pump until the vacuum degree in the pipe reaches the set value.

[0029] The outlet of the sewage pump is connected to the feed port of the centrifugal dehydrator, and the dehydrated solid enters the garbage can 710 through the slag outlet. The liquid enters the water tank 720 through the drain port, and both can be further utilized.

[0030] Due to the adoption of the above technical solution, the present invention crushes and transmits the food waste generated by the residents of multiple buildings in the residential area to one place (feeding port 200b) through a set of gravity pipelines and siphon pipelines for centralized dehydration. In this way, the limited space in the residential area is fully utilized to isolate the odor and bacteria in the process of food waste treatment. The sanitation level of the residential area is increased. It also reduces equipment investment and waste volume, greatly reduces transportation costs and food waste disposal costs. It solves the environmental protection problems of recycling nutrients contained in food waste and using fertilizers in garbage.

[0031] Focus on combination Figure 2 Some residential communities are old communities and residents' homes do not have food waste grinders installed, or there is no special drainage pipe designed for food waste collection, or some residents are unwilling to install food waste waste collectors at home, or due to cost constraints, it is not appropriate to install food waste grinders 100 in every household. Instead, a certain number of food waste grinders 100 are installed on the ground floor of each unit or in some public areas of the community according to the number of people to be served and site conditions, and then the solid-containing liquid is connected to the siphon pipeline system.

[0032] Focus on combination Figure 3 In order to prevent the quick-opening valve 401 from being frequently activated in a high floor with a large drainage volume, a water tank 800 is added at the lower end 322 of the vertical pipe 320 (at the ceiling of the floor where the negative pressure storage tank 500 and other equipment are located), and the inlet 801 of the water tank 800 is connected to the vertical pipe 320, and the outlet 802 is connected to the siphon branch 410 through the quick-opening valve 401. A third liquid level sensor 810 is provided on the water tank 800, and the third liquid level sensor 810 is provided with high and low liquid levels 811 and 812, wherein the low liquid level 812 is higher than the height of the water tank outlet 802.

Claims

1. An apartment kitchen waste treatment system using siphon discharge, characterized in that: include: A kitchen waste crusher connected to a kitchen sink or a kitchen waste feeding port, wherein the kitchen waste is poured into the crusher through the feeding port and then ground with water, and the discharge port of the crusher is connected to the port of the horizontal pipe of the gravity pipe; The horizontal pipe is connected to the vertical pipe and is slightly inclined toward the vertical pipe. The upper end of the vertical pipe extends out of the roof and is connected to the atmosphere. A set of upper and lower liquid level sensors are arranged at the lower end of the vertical pipe, and the height of the lower liquid level sensor is higher than the height of the interface between the bottom horizontal pipe and the vertical pipe; The end of the vertical pipe is connected to the siphon main pipe through a siphon branch pipe with a quick-opening valve and a 45° elbow; The discharge port of the siphon main pipe is connected to a negative pressure collection tank; a water tank is arranged at the lower end of the vertical pipe, and the water tank is arranged at the ceiling of the floor where the negative pressure collection tank is located; the water inlet of the water tank is connected to the vertical pipe, and the water outlet of the water tank is connected to the siphon branch pipe equipped with a quick-opening valve, and a third liquid level sensor is arranged in the water tank; the third liquid level sensor is provided with a high and a low liquid level, wherein the low liquid level is higher than the height of the water tank outlet; The quick-opening valve is of normally closed type. The solid-containing liquid coming from the food waste shredder will accumulate in the pipe in front of the quick-opening valve. When the liquid reaches the maximum liquid level line, the liquid level sensor will trigger the quick-opening valve to open. Under the action of the pressure difference, the liquid will be sucked into the siphon pipe and flow into the negative pressure collection tank. When the liquid level drops to the low liquid level line, the quick-opening valve will close again.

2. The apartment kitchen waste treatment system using siphon discharge as claimed in claim 1, characterized in that: The negative pressure collection tank is provided with a stirring device, a second liquid level sensor and a vacuum degree measuring device; The negative pressure collection tank is connected to the vacuum pump through a vacuum pipeline.

3. The apartment kitchen waste treatment system using siphon discharge as claimed in claim 1, characterized in that: The negative pressure collection tank is connected to the dehydration device through a sewage pipeline provided with a sewage pump.

4. The apartment kitchen waste treatment system using siphon discharge as claimed in claim 1, characterized in that: The solid waste dehydrated by the dehydration device enters the trash can, and the liquid waste enters the water tank through the drain outlet for further utilization.

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