CN105507416B - It is easy to the cellular-type sewage collecting and automatic-discharging well made compost - Google Patents

Abstract

The invention discloses a separated sewage collection and automatic discharge well which is convenient for retting, comprising a retting well connected with a gravity water inlet pipe, and a valve well communicating with the retting well; a sewage communication is arranged between the retting well and the valve well The valve well is also equipped with a sewage pipe extending upward from the inside of the valve well, a vacuum valve connected with the sewage pipe, and a vacuum pipeline connected with the vacuum valve. There is a sensing element extending down to the valve well. The invention provides a separate vacuum well with retting function suitable for rural areas. On the one hand, it increases the use function of the traditional sewage collection well, and on the other hand, it effectively prevents the large floating objects that may be mixed in the sewage from affecting the valve well. In addition, the opening and closing power of the vacuum valve in the valve well comes from the vacuum system itself, so it can be realized without adding additional power equipment. The invention reduces the power loss of the system and has higher safety. The characteristics of collection, quantitative discharge and no need for manual duty.

Description

Separate sewage collection and automatic discharge wells for fertilization

technical field

The invention belongs to the field of vacuum drainage, in particular to a sewage collection and automatic discharge well with a transition between gravity flow and vacuum flow and the function of retting.

Background technique

In recent years, the use of vacuum to collect and treat domestic sewage has gradually entered people's field of vision. As an important part of the sewage vacuum collection and treatment system, vacuum wells mostly use one format for sewage collection. Although the structure is simple and the treatment is fast, it is not applicable Fertilize and collect manure in rural areas. As we all know, the current outdoor drainage system in rural areas mainly adopts straight drainage or gravity pipeline transportation. Straight row, that is, discharge to the front and back of the house nearby. This method directly affects the surrounding environment, and even leads to the generation and spread of infectious diseases. Gravity pipeline, that is, the sewage at the user end passes through the gravity pipeline laid down along the road, and flows from a high place to a low place under the action of the earth's gravity. Although the gravity drainage system has the advantages of simple construction and low operation and maintenance costs, it is greatly restricted by the terrain. , The excavation volume is large, the ground is highly destructive, and a large number of inspection wells, lift pumps and inverted siphons need to be installed along the road, resulting in difficult construction and high construction costs.

For example, Chinese Patent Application Nos. 201020273096.6 and 201110085311.9 all disclose a vacuum collection unit communicated with a gravity water inlet pipeline, but these units do not have a composting function. In addition, the common vacuum wells currently on the market require additional power equipment, such as compressed air sources or power supplies, to realize the opening and closing of vacuum valves, which directly increases the work intensity when arranging pipelines. Especially for some remote mountainous areas with weak infrastructure, the construction is often affected due to the lack of power facilities.

In addition, in order to maintain the safety of the system, it is also necessary to carry out regular inspection and maintenance on the controller. During the inspection and maintenance process, because the drainage system cannot work, it will also affect people's normal life.

Contents of the invention

In view of this, the purpose of the present invention is to provide a separate sewage collection and automatic discharge well suitable for retting in rural areas, which solves the problem that existing vacuum wells do not have the function of retting, and on the one hand increases the use function of traditional sewage collection wells On the other hand, it effectively prevents the damage to the valve well from the large floating objects that may be mixed in the sewage, and the structure is simple and the cost is lower.

The technical solution adopted by the present invention to solve the technical problem is: a separated sewage collection and automatic discharge well convenient for retting, which includes a retting well connected with a gravity water inlet pipeline, and a valve well connected to the retting well. A sewage communication port and a filter grid arranged on the sewage communication port are arranged between the retting well and the valve well. The valve well is also provided with a sewage pipe extending upward from the inside of the valve well, a vacuum valve connected with the sewage pipe, and a vacuum pipeline connected with the vacuum valve.

Wherein, the vacuum valve includes a working chamber, a medium inlet connected to the sewage pipe, a medium outlet connected to the vacuum pipeline, and a pilot valve connected to the working chamber for controlling the on-off of the medium inlet and the medium outlet. There is also an air intake port on the vacuum pipeline, and the pilot valve is provided with a vacuum port connected to the air intake port, an atmospheric port connected to the atmosphere, and a pressure port for sensing the liquid level inside the valve well. A sensitive element extending down to the valve well is installed on the pressure interface, and the sensitive element includes an air pressure conduction tube installed on the pressure interface, and an induction tube connected with the air pressure conduction tube for sensing the liquid level in the well.

Preferably, the above-mentioned filter grid is arranged on the side of the sewage communication port close to the retting well, and a grid tie rod is installed on the upper part of the filter grid, so as to facilitate regular replacement of the filter grid.

With the above-mentioned technical scheme, the sewage flows into the retting well through the gravity water inlet pipe for decomposition and fermentation, and the larger floating matter stays in the retting well under the barrier of the filter grid, and the sewage enters the valve well through the sewage connection port. When the sewage gradually increases, the liquid level in the induction pipe rises accordingly, forcing the air pressure in the pipe to rise, and the air pressure in the pipe is transmitted to the pilot valve of the vacuum valve through the air pressure transmission pipe. When the liquid level in the tank reaches the predetermined height, the pilot valve automatically switches to the vacuum interface, and connects the gas circuit of the vacuum valve with the vacuum pipeline. The air in the working chamber is sucked away, and the vacuum valve is opened under the atmospheric pressure of the medium inlet. Due to the difference in air pressure between the two ends of the vacuum valve, once the valve is opened, the sewage will be sucked into the vacuum pipeline at a high speed. When the sewage in the valve well is sucked away, the water level gradually drops, and the air pressure in the induction tube also drops thereupon. When the liquid level in the induction tube drops to a predetermined height, the pilot valve switches to the atmospheric port, the pilot valve controls the medium inlet and the medium outlet to be separated, the vacuum valve is closed, and the sewage stops discharging, thus completing a collection and discharge process.

The invention uses the negative pressure in the vacuum pipeline to automatically open the vacuum valve, so that sewage is automatically discharged into the vacuum pipeline without adding additional power equipment, so it has the advantages of high safety and low power loss.

As a further improvement of the present invention, a sealing plate is provided in the middle of the valve well. The sealing plate divides the valve well into upper and lower layers, consisting of the upper vacuum valve chamber and the lower sewage temporary storage tank. The upper and lower layers are tightly sealed, better Control odor and improve the surrounding environment. The side wall of the vacuum valve chamber is provided with an insertion port for arranging the vacuum pipeline, and the sealing plate is provided with a sewage pipe insertion port and an induction pipe insertion port to isolate the valve from the sewage and facilitate maintenance.

Preferably, in order to prevent larger floating objects from entering the system through the filter grid and causing blockage of the pipeline, a filter device is also provided in the sewage temporary storage tank. The bottom of the filter device sinks into the bottom of the well, and the upper part is embedded in the movable part of the sealing plate. The upper 2/3 of the filter device is the filter area, surrounded by stainless steel mesh at a certain interval, and the lower 1/3 of the filter device is the interception area. It is used to block the sediment mixed in the sewage on the outside of the sewage temporary storage tank.

One of the technical difficulties of the present invention is how to connect the air intake port in the vacuum pipeline of UPVC material to the pilot valve under the condition of ensuring the sealing. The specific technical scheme adopted is as follows. A first T-shaped connector is installed at the air intake of the vacuum pipeline. The left and right outlets of the first T-shaped connector are sealed and connected to the vacuum pipeline, and the upper outlet is sealed and connected with the first pipeline. The other end of the first pipe is equipped with a variable diameter, and the variable diameter is connected to a second T-shaped connecting piece through a first joint. One outlet of the second T-shaped connecting piece is connected with a plug or a pressure gauge, and the other outlet is connected to a The second joint is equipped with a hose, and the other end of the hose is connected to the vacuum port of the pilot valve. As another embodiment of the present invention, a second pipeline is further provided between the variable diameter and the first joint. The above-mentioned first pipeline, reducing diameter and second pipeline are all vertically extended upwards. This design can prevent the sewage in the vacuum pipeline from flowing backward into the vacuum interface of the pilot valve to achieve gas-liquid separation. Further, the second T-shaped connection The outlet connected to the hose on the piece is vertically arranged with the outlet connected to the first joint on the second T-shaped connecting piece.

As a specific connection method of the present invention, both ends of the above-mentioned first joint are provided with external threads, and both the reducing diameter and the second T-shaped connector are provided with internal threads matching the external threads. The second joint is a push-in type pipe joint. In addition, in order to further improve the sealing performance, a sealant or a sealing ring is also provided at the joints of the above-mentioned pipe fittings.

Further, the vacuum pipeline is made of UPVC material, and its nominal pressure is greater than 1.0MPa. The above-mentioned first T-shaped connector, the first pipe and the reducing diameter are all made of UPVC material, and the first joint, the second joint and the second T-shaped connector are made of stainless steel or copper material.

During the suction process of sewage, the pipeline will shake slightly. Over time, the axial movement will increase, which will affect the suction effect, and even cause the consequence of not being able to absorb water. There is also a shaft in the valve well to prevent sewage Swivel height adjustment device. Further, the height adjustment device includes a support plate, a set of mounting holes vertically opened along the height direction of the support plate, and a connecting piece fixed in the mounting hole by bolts; the connecting piece includes a bent part that is adapted to the sewage pipe, and a fixing part respectively extending from two ends of the bent part to the mounting hole; Of course, the structure of the height adjusting device is not limited thereto. For example, a slot is provided on the support plate, and the hook on the connector hooks the corresponding slot to realize the position limitation of the sewage pipe.

In order to further achieve the purpose of purifying the surrounding environment, the air interface of the pilot valve is connected with an air filter through a pipeline, and the air filter communicates with the atmosphere.

In order to facilitate pipeline inspection and maintenance, a spare pipeline is also installed on the vacuum pipeline, which includes a three-way valve installed on the vacuum pipeline and a steel wire hose connected to the three-way valve; the steel wire hose The end may extend to the bottom of the valve well. Preferably, a two-way valve is also provided on the steel wire hose, and a draw hook is provided on the side wall of the valve well, and the two-way valve is fixed on the upper edge of the well wall by the draw hook. When the system fails, the backup pipeline is opened as a temporary sewage pipeline to keep the system running normally.

Compared with the prior art, the present invention has the advantages of:

1. The present invention aims at the problem that the existing vacuum well does not have a retting function. A retting well connected to the valve well is set between the valve well and the user end. The user sewage first flows into the retting well through a short-distance gravity pipeline for decomposition and fermentation. Under the barrier of the filter grid, the larger floating matter remains in the retting well, and the sewage enters the valve well through the sewage connection port. When the liquid level in the valve well reaches a predetermined height, the air pressure in the pipe is forced to rise, and the air pressure in the pipe passes through the air pressure conduction pipe. Passed to the pilot valve of the vacuum valve, the pilot valve is switched to the vacuum interface, the vacuum valve is connected with the vacuum pipeline, the air in the working chamber is sucked away, and the vacuum valve is opened under the atmospheric pressure of the medium inlet. Due to the different air pressures at both ends of the pipeline separated by the vacuum valve, once the valve is opened, the sewage will be sucked into the vacuum pipeline at high speed. When the sewage in the valve well is sucked away, the water level gradually drops, and the air pressure in the induction tube also drops thereupon. When the liquid level drops to the predetermined level, the pilot valve returns to the atmospheric interface, the connection between the vacuum valve and the vacuum pipeline is cut off, the vacuum valve is closed, and the discharge of sewage stops. It can be seen that the power for the opening and closing of the vacuum valve in the present invention comes from the vacuum system, which can be realized without adding additional power equipment, reduces the power loss of the system, and has higher safety.

2. The valve well adopts a layered design. The upper layer of the valve well is a vacuum valve chamber to keep it clean and fresh; the lower layer is a sewage temporary storage tank for short-term storage of sewage. The valve is isolated from the sewage, and the upper and lower layers are tightly sealed, which is convenient for odor control and equipment maintenance, and at the same time greatly improves the surrounding environment. In addition, a filter grill is installed at the sewage connection port, and a filter device is installed in the sewage temporary storage tank. Through two filtrations, the purpose of preventing large floating objects from entering the system and causing pipeline blockage is achieved.

3. The present invention improves the structure of the vacuum valve. The pneumatic diaphragm structure can be used in the working chamber, and the valve cover is designed in a circular arc shape, so that the diaphragm has a large lifting space and is not easy to be blocked; pilot valve. The pilot valve is provided with a vacuum port connected to the air intake port, an atmospheric port connected to the atmosphere, and a pressure port for sensing the liquid level inside the valve well. The sensitive element connected with the pressure interface senses the liquid level in the well, thereby controlling the mutual switching of each interface on the pilot valve.

4. Due to the corrosiveness of sewage, most of the vacuum pipelines are made of UPVC materials, while the hoses are made of plastic materials. Therefore, how to connect the hose of the vacuum interface on the pilot valve to the air inlet of the vacuum pipeline in a more reliable and firm way, Become another difficult problem that perplexes those skilled in the art. The present invention connects the vacuum pipeline with the first pipeline through the first T-shaped connector made of UPVC material, installs a UPVC variable diameter on the upper end of the first pipeline, and then connects the above UPVC variable diameter and stainless steel or copper through the first joint. The material is made into a second T-shaped connector, and finally the hose is connected to the vacuum port of the pilot valve through the second connector. The air inlet of the first pipeline is set above the vacuum pipeline, which can reduce the possibility of sewage flowing into the vacuum interface of the pilot valve at the source. In addition, the above-mentioned first pipeline, reducing diameter and second pipeline are arranged vertically upwards, and their specific heights can be set according to the air pressure in the vacuum pipeline, so as to further prevent sewage from flowing backward. In addition, the outlet connected to the hose on the second T-shaped connector is vertically arranged with the outlet connected to the first joint on the second T-shaped connector, so as to further prevent sewage from entering the vacuum port of the pilot valve. Sealants or sealing rings are preferably provided at the joints of the above-mentioned pipe fittings to further ensure the tightness of the pipes.

5. The present invention is also equipped with a spare pipeline on the vacuum pipeline to facilitate the inspection and maintenance of the pipeline. When the system fails, the spare pipeline will be opened as a temporary sewage pipeline to keep the system running normally.

6. The present invention is equipped with a height adjustment device in the valve well to avoid the defect that the sewage is affected by the increase of axial movement during the suction process and the suction effect.

The invention integrates the fertilization function with the sewage collection well, has the characteristics of automatic collection, quantitative discharge and no need for manual guarding, and has the advantages of simple structure, convenience and practicality, and wide application range.

The present invention will be described in detail below with reference to the accompanying drawings and embodiments.

Description of drawings

Fig. 1 is a structural schematic diagram of the present invention.

Fig. 2 is a schematic structural view of the valve well in the present invention.

FIG. 3 is a partially enlarged view of FIG. 2 .

Figure 4 is a cross-sectional view of the valve well.

Fig. 5 is a schematic diagram of the connection structure from the vacuum port on the pilot valve to the air intake port of the vacuum pipeline.

Fig. 6 is a structural schematic diagram of the height adjusting device.

Fig. 7 is a perspective view of the height adjustment device.

In the figure, 10, fertilization well; 1, valve well; 2, sewage pipe; 3, vacuum valve; 4, vacuum pipeline; 5, sensitive element; 20, sewage connection port; 21, filter grille; 22, grille rod 11. Vacuum valve chamber; 12. Sewage temporary storage tank; 13. Insertion port; 14. Gravity water inlet pipe; 15. Boss; 16. Sealing plate; 17. Well cover; 18. Well wall; 19. Well bottom; 31. Vacuum interface; 32. Atmospheric interface; 33. Pressure interface; 101. Air filter; 41. Air intake port; 51. Air pressure conduction tube; 52. Induction tube; 7. Filter device; 61. First T-shaped connector ;62, the first pipe; 63, variable diameter; 65, the second T-shaped connector; 66, pressure gauge; 67, hose; 68, the first joint; 69, the second joint; 8, height adjustment device; 81 , support plate; 82, installation hole; 83, connector; 84, bending part; 85, fixed part; 9, spare pipeline; 91, three-way valve; 92, steel wire hose; 93, two-way valve; 94, hook.

detailed description

Example,

Please refer to Figures 1 to 6 together, a separate sewage collection and automatic discharge well, including a retting well 10 connected to a gravity inlet pipeline 14, and a valve well 1 communicating with the retting well 10. The bottoms of the retting well 10 and the valve well 1 are provided with a sewage communication port 20 and a filter grid 21 arranged on the sewage communication port 20 near the retting well side, and a grid tie rod 22 is also fixed on the filter grid 21 .

The valve well 1 is provided with a sewage pipe 2 extending upward from the inside of the valve well, a vacuum valve 3 connected to the sewage pipe 2, a vacuum pipeline 4 connected to the vacuum valve 3, and a vacuum pipe 4 connected to the vacuum valve 3 and extending downward to the valve well. Wells for sensitive elements5.

Wherein, the retting fertilizer well 10 and the valve well 1 are all formed by pouring reinforced concrete. The valve well 1 includes a well cover 17 , a well wall 18 and a well bottom 19 . Valve well 1 middle part is provided with boss 15, and sealing plate 16 is installed on the boss 15, and valve well is divided into upper and lower layers, and this sealing plate 16 is provided with sewage pipe penetration port and induction pipe penetration port. The upper layer of the valve well is a vacuum valve chamber 11, and the upper well wall is provided with an insertion port 13 for arranging the vacuum pipeline 4. The lower floor of the valve well is provided with a sewage temporary storage tank 12 for short-term storage of the sewage flowing in from the retting well.

Gravity water inlet pipe 14 is connected to each household's water place, and one household or several households share a vacuum well, which is determined flexibly according to the water consumption of households and the degree of dispersion between households. Household sewage enters the composting well through the gravity water inlet pipeline laid slanted downward. Gravity water inlet pipeline 14 adopts PVC material to make. Sewage temporary storage tank 12 adopts SBS modified asphalt waterproof membrane to take waterproof measures. According to the actual situation, the valve well can also be made of glass fiber reinforced plastic, stainless steel, carbon steel anti-corrosion, etc., and the shape can be round or square.

A filtering device 7 is also arranged in the sewage temporary storage tank 12 . The bottom of the filtering device 7 sinks into the bottom of the well, and the top is embedded on the sealing plate 16 . The upper 2/3 of the filter device is the filter area, surrounded by stainless steel mesh at a certain interval, and the lower 1/3 of the filter device is the interception area, which is used to block the sediment mixed in the sewage from the outside of the sewage temporary storage tank.

In addition, the vacuum valve 3 includes a working chamber, a medium inlet connected to the sewage pipe 2, a medium outlet connected to the vacuum pipeline, and a pilot valve connected to the working chamber for controlling the on-off of the medium inlet and the medium outlet.

Wherein, an air intake port 41 is also provided on the vacuum pipeline 4 , and a vacuum interface 31 connected to the air intake port is provided on the above-mentioned pilot valve, and a hose 67 is connected to the vacuum interface 31 . A first T-shaped connector 61 is installed at the air intake port 41, the left outlet of the first T-shaped connector 61 is connected to the medium outlet of the vacuum valve, the right outlet is connected to the vacuum pipeline, and the upper outlet is sealed with the first pipeline 62, The end of the first pipe 62 is connected with a variable diameter 63, and the variable diameter 63 is screwed to a second T-shaped connector 65 through a first joint 68, and a pressure gauge 66 is connected to the upper outlet of the second T-shaped connector 65 , the left outlet is equipped with a second joint 69 connected to the hose 67 .

The above-mentioned vacuum pipeline 4 is made of UPVC material, and its nominal pressure is greater than 1.0MPa. The first T-shaped connector 61 , the first pipe 62 and the variable diameter 63 are all made of UPVC material, and the second T-shaped connector 65 , the first joint 68 and the second joint 69 are made of stainless steel or copper.

An atmospheric port 32 communicating with the atmosphere is also provided on the pilot valve, and the atmospheric port 32 is connected with an air filter 101 through a pipeline.

The pilot valve is also provided with a pressure port 33 for sensing the liquid level inside the valve well. A sensitive element 5 is also installed at the lower part of the pressure port 33 . Wherein, the sensitive element 5 includes an air pressure conduction pipe 51 installed on the pressure interface, and an induction pipe 52 connected with the air pressure conduction pipe 51 for sensing the liquid level in the well.

A height adjustment device 8 for preventing the sewage pipe 2 from moving axially is also provided in the valve shaft 1 . The height adjusting device 8 includes a support plate 81 , a set of mounting holes 82 vertically opened along the height direction of the support plate 81 , and a connecting piece 83 fixed in the mounting holes by bolts. The connecting piece 83 includes a bent portion 84 adapted to the sewage pipe 2 , and fixing portions 85 respectively extending from both ends of the bent portion 84 to the installation holes.

A spare pipeline 9 is also installed on the vacuum pipeline 4 , and the spare pipeline 9 includes a three-way valve 91 installed on the vacuum pipeline 4 and a steel wire hose 92 connected to the three-way valve 91 . The steel wire hose 92 is also provided with a two-way valve 93, and the side wall of the valve well is provided with a drag hook 94, and the two-way valve 93 is fixed on the upper edge of the well wall by the drag hook 94. The end of the steel wire hose 92 can extend to the bottom of the valve well.

The present invention has been introduced in detail above. In this paper, specific examples have been used to illustrate the principle and implementation of the present invention. The description of the above embodiments is only used to help understand the method and core idea of the present invention, not to the scope of the present invention. At the same time, on the premise of not departing from the design spirit of the present invention, equivalent changes or decorations made by those skilled in the art to the structures, features and principles of the present invention shall fall within the protection scope of the present invention.

Claims (8)

1. A separate sewage collection and automatic discharge well that is convenient to retting is characterized in that: it comprises a retting well connected to the gravity water inlet pipeline, and a valve well communicated with the retting well; between the retting well and the valve well There is a sewage connection port and a filter grill arranged on the sewage connection port; the valve well is also provided with a sewage pipe extending upward from the inside of the valve well, a vacuum valve connected to the sewage pipe, and a vacuum pipeline connected to the vacuum valve ; The vacuum valve includes a working chamber, a medium inlet connected to the sewage pipe, a medium outlet connected to the vacuum pipeline, and a pilot valve connected to the working chamber for controlling the medium inlet and medium outlet; There is an air intake port, and the above-mentioned pilot valve is provided with a vacuum interface connected to the air intake port, an atmospheric interface connected to the atmosphere, and a pressure interface for sensing the liquid level inside the valve well; a downward pressure interface is also installed on the pressure interface. A sensitive element extending to the valve well; the sensitive element includes an air pressure conduction pipe installed on the pressure interface, and an induction pipe connected with the air pressure conduction pipe for sensing the liquid level in the well; A first T-shaped connector is installed at the air intake of the vacuum pipeline, and the left and right outlets of the first T-shaped connector are sealed and connected to the vacuum pipeline, and the upper outlet is sealed and connected with a first pipeline; the first pipeline The other end of the adapter is equipped with a variable diameter, which is connected to a second T-shaped connecting piece through the first joint. One outlet of the second T-shaped connecting piece is connected with a plug or a pressure gauge, and the other outlet is installed through the second joint. A hose is provided, and the other end of the hose is connected to the vacuum port of the pilot valve; The vacuum pipeline is made of UPVC material, and the hose of the vacuum interface on the pilot valve is made of plastic material; The first pipe, variable diameter and second pipe are all vertically extended upwards, and the outlet connected to the hose on the second T-shaped connector is perpendicular to the outlet connected to the first joint on the second T-shaped connector layout. 2. The separated sewage collection and automatic discharge well that is convenient for fertilization as claimed in claim 1 is characterized in that: the middle part of the valve well is provided with a sealing plate, and the sealing plate divides the valve well into an upper vacuum valve chamber and a lower vacuum valve chamber. Sewage temporary storage tank; on the side wall of the vacuum valve chamber, there is an insertion port for arranging the vacuum pipeline, and the sealing plate is provided with a sewage pipe insertion port and an induction tube insertion port. 3. The separated sewage collection and automatic discharge well that is convenient for retting as claimed in claim 1 is characterized in that: the filter grid is arranged on the side of the sewage communication port close to the composting well, and the upper part of the filter grid is also equipped with a Grille bars. 4. The separated sewage collection and automatic discharge well that is convenient for retting according to claim 1, characterized in that: the valve well is also equipped with a height adjustment device for preventing the axial movement of the sewage pipe. 5. The separated sewage collection and automatic discharge well that is convenient for fertilization as claimed in claim 4 is characterized in that: the height adjustment device includes a support plate, a group of mounting holes vertically opened along the height direction of the support plate, and fixed by bolts A connecting piece in the installation hole; the connecting piece includes a bent portion adapted to the sewage pipe, and fixing portions respectively extending from both ends of the bent portion to the installation hole. 6. The separated sewage collection and automatic discharge well for fertilization as claimed in any one of claims 1 to 5, characterized in that: an air filter is also provided on the pipeline connected to the air port of the pilot valve. 7. The separated sewage collection and automatic discharge well that is convenient for fertilization as claimed in claim 6 is characterized in that: a spare pipeline is also installed on the vacuum pipeline, and the spare pipeline includes a three-way valve installed on the vacuum pipeline, and a wire hose connected to the three-way valve; the end of the wire hose extends to the bottom of the valve well. 8. The separated sewage collection and automatic discharge well that is convenient for fertilization as claimed in claim 7 is characterized in that: the steel wire hose is also provided with a two-way valve, and the side wall of the valve well is provided with a pull hook, and the two-way valve It is fixed on the upper edge of the well wall by a pull hook.