A buried vacuum pumping station

Abstract

The application discloses a buried vacuum pump station and relates to the technical field of vacuum pump stations.The buried vacuum pump station comprises an integrated shell, a manhole is fixedly connected to the top of the integrated shell, the bottom of the manhole is communicated with the inside of the integrated shell, a tank sealing plate is fixedly connected to the inside of the integrated shell, an operation room is arranged above the tank sealing plate, a sewage inlet vacuum pipe is fixedly connected to the top of the tank sealing plate, and a concealed stem gate valve is fixedly installed on the sewage inlet vacuum pipe.The high-speed flowing sewage can effectively drive the rotating frame to rotate, the rotating frame drives the cutting knife one to rotate in the process of rotating, the cutting knife one cuts the solid matters in the sewage together with the adhered cutting knife two in the process of rotating, the cutting knife one and the cutting knife two can cut the solid matters after cutting, the situation that the solid matters block the pipeline is reduced, the sewage treatment efficiency is effectively improved, the solid matters are prevented from causing load to the components in the equipment, and the maintenance cost is further reduced.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of vacuum pump stations, in particular to a buried vacuum pump station. BACKGROUND

[0002] The plateau region has high altitude, low temperature, and extensive permafrost layer. The traditional buried vacuum pump station cannot normally operate in such extreme environment. The main problem of the plateau vacuum pump station is that the solid blockage occurs frequently. The high-altitude low-pressure environment leads to reduced vacuum pump suction efficiency, insufficient sewage flow rate, and inability to effectively transport sewage containing solid matter. The solid matter is easily deposited at the pipe elbow and valve, further exacerbating the risk of blockage.

[0003] From a short-term perspective, blockage can cause abnormal fluctuations in vacuum degree, frequent overloading of the pump body, and the need for manual cleaning or shutdown for maintenance. However, the plateau region is vast and sparsely populated, and transportation is inconvenient, so the response cycle for operation and maintenance is long. During this period, sewage retention may cause pipe freeze cracking and equipment damage, significantly increasing maintenance costs. From a long-term operation perspective, the running efficiency of the vacuum pump station is affected, and the vacuum pump station cannot normally process sewage. SUMMARY

[0004] To solve the above technical problems, the present application provides a buried vacuum pump station.

[0005] The technical scheme is as follows:

[0006] A buried vacuum pump station, comprising an integrated shell, a manhole is fixedly connected to the top of the integrated shell, the bottom of the manhole is in communication with the interior of the integrated shell, a tank seal plate is fixedly connected to the interior of the integrated shell, the upper portion of the tank seal plate is an operation room, a sewage inlet vacuum pipe is fixedly connected to the top of the tank seal plate, a concealed rod gate valve is fixedly installed on the sewage inlet vacuum pipe, and a chopping assembly is fixedly connected to the interior of the sewage inlet vacuum pipe.

[0007] The chopping assembly comprises a fixed ring fixedly connected to the interior of the sewage inlet vacuum pipe, a sewage collection sleeve fixedly connected to the fixed ring, a plurality of ball bearings arranged on the inner side of the sewage collection sleeve, a rotating frame arranged between the sewage collection sleeve and the ball bearings, a rotating rod fixedly connected to the side of the rotating frame away from the fixed ring, a plurality of fan blades at the end of the rotating rod away from the rotating frame, a plurality of cutting knives one fixedly connected to the end of the rotating frame away from the rotating rod, and a plurality of cutting knives two fixedly connected to the inner side of the fixed ring.

[0008] Further, the top of the access hole is rotationally connected with a top cover, the inside of the access hole is fixedly installed with a crawling ladder, the tank sealing plate divides the inside of the integrated shell into an operation room at the top and a sewage storage room at the bottom, the bottom of the integrated shell is spherical, the top of the sewage inlet vacuum pipe extends to the outside of the integrated shell, one end of the sewage inlet vacuum pipe extending to the outside of the integrated shell is fixedly connected with a sewage pipeline of a user, and the bottom of the sewage inlet vacuum pipe is in communication with the sewage storage room.

[0009] Further, the pollution collecting sleeve is horizontally placed in a funnel shape, the inner surface of the side of the pollution collecting sleeve close to the fixing ring is provided with a rolling groove one, the outer surface of the outer ring of the rolling ball is provided with a rolling groove two corresponding to the rolling groove one of the pollution collecting sleeve, the rotating frame is located between the rolling groove one and the rolling groove two, and the inclination directions of the cutting knives one and two are opposite.

[0010] Further, the top of the tank sealing plate is fixedly connected with two double-support pumps, the side of the double-support pump close to the sewage inlet vacuum pipe is fixedly connected with a vacuum sewage suction pipe, and the side of the double-support pump away from the vacuum sewage suction pipe is fixedly connected with a sewage discharge pipe.

[0011] Further, the double-support pump is a cam pump, a heater is arranged on the double-support pump, the bottom of the vacuum sewage suction pipe extends to the bottom of the inner cavity of the integrated shell through the tank sealing plate, the top of the sewage discharge pipe extends to the outside of the integrated shell through the integrated shell, and one end of the sewage discharge pipe located at the outside of the integrated shell is connected with an existing sewage centralized pipeline.

[0012] Further, two claw type vacuum pumps are fixedly connected on the tank sealing plate, the top of each of the two claw type vacuum pumps is fixedly connected with a dust filter, an evacuation converging pipe is fixedly connected on the tank sealing plate, two transparent filters are fixedly connected between the evacuation converging pipe and the dust filters, a sewage gas discharge pipe is fixedly connected on the claw type vacuum pump, and a ventilation pipe is fixedly connected at the top of the integrated shell.

[0013] Further, a steel wire hose is arranged between each of the two transparent filters and the two dust filters, the sewage gas discharge pipe is composed of two sub-pipes and a main pipe, the two sub-pipes of the sewage gas discharge pipe are in communication with the two claw type vacuum pumps respectively, the main pipe of the sewage gas discharge pipe extends upwards to above the integrated shell, a ventilator for rapid ventilation is arranged in the inside of the ventilation pipe, the bottom of the ventilation pipe is in communication with the inside of the integrated shell, and the ventilation pipe and the main pipe of the sewage gas discharge pipe are of the same length at one end located at the outside of the integrated shell.

[0014] Further, an insertion type liquid level sensor is fixedly connected at the top of the tank sealing plate, a pressure transmitter is arranged on the tank sealing plate, a vacuum interface valve is fixedly connected on the tank sealing plate, and a system control box is fixedly connected on the inner side wall of the integrated shell.

[0015] Further, the insertion type liquid level sensor specifically comprises a body and a detection head, the detection head of the insertion type liquid level sensor extends downwards through the tank sealing plate to the bottom of the inner cavity of the integrated shell, and the middle part of the vacuum interface valve is connected with the sewage storage space below the tank sealing plate.

[0016] From the above, the buried vacuum pump station has the following advantages:

[0017] The high-speed flowing sewage can effectively drive the rotating frame to rotate, and the rotating frame drives the cutting knife I to rotate in the process, and the cutting knife I cuts the solid matter in the sewage with the adhered cutting knife II, which can reduce the blockage of the pipeline by the solid matter and effectively improve the efficiency of sewage treatment. In addition, the solid matter can avoid loading on the internal components of the equipment, further reducing the maintenance cost.

[0018] The sewage and solid particles flow to the centralized sewage pipe through the sewage pipe, realizing rapid discharge of the sewage. Through the pumping mode, the sewage can be discharged in time, preventing the accumulation of sewage and the generation of odor problems.

[0019] The claw type vacuum pump can discharge the odor from the odor discharge pipe to the outside, realizing the discharge of the odor to the outside, avoiding the storage of the odor in the sewage storage space for too long to generate methane, and avoiding the corrosion of hydrogen sulfide or ammonia gas in the odor to the pipeline. In addition, the discharge of the odor can also reduce the risk of explosion.

[0020] The ventilation machine can send external air into the integrated shell operating room from the ventilation pipe, and also can discharge the air in the integrated shell from the ventilation pipe, realizing heat dissipation of the equipment in the integrated shell operating room. The equipment cannot be cooled during long-term operation underground, which can reduce the problem of high temperature, ensure that the equipment always maintains at a suitable temperature during operation, reduce the risk of equipment overload caused by high temperature, and improve the service life of the equipment operation.

[0021] Under the action of the vacuum interface valve suction, the water accumulated on the tank sealing plate is sucked into the sewage storage space of the integrated shell. The leaked water enters the sewage storage space and is mixed with the sewage. The leaked water is treated together with the sewage, preventing the leaked water from accumulating in the operating room and affecting the operation of the equipment in the operating room. The water entering the operating room of the upper part of the integrated shell can avoid the problem of short circuit of the equipment parts. BRIEF DESCRIPTION OF DRAWINGS

[0022] Figure 1 It is a three-dimensional schematic view of the overall structure of the application.

[0023] Figure 2The figure is a three-dimensional schematic view of the claw type vacuum pump, dust filter, transparent filter and other components of the present application.

[0024] Figure 3 The figure is a three-dimensional schematic view of the pressure transmitter, vacuum interface valve, system control box and other components of the present application.

[0025] Figure 4 The figure is a three-dimensional schematic view of the integrated shell and access hole.

[0026] Figure 5 The figure is a three-dimensional schematic view of the integrated shell and access hole.

[0027] Figure 6 The figure is a three-dimensional schematic view of the vacuum sewage inlet pipe and the gate valve with a hidden rod.

[0028] Figure 7 The figure is a three-dimensional schematic view of the vacuum sewage inlet pipe and the gate valve with a hidden rod.

[0029] Figure 8 The figure is a three-dimensional schematic view of the cutting knife one and cutting knife two.

[0030] In the present application, the figure number is:

[0031] 1, integrated shell; 2, access hole; 3, tank sealing plate; 4, sewage vacuum pipe; 5, gate valve with a hidden rod; 6, double support pump; 7, vacuum sewage suction pipe; 8, sewage discharge pipe; 9, claw type vacuum pump; 10, dust filter; 11, transparent filter; 12, vacuum suction manifold; 13, odor gas discharge pipe; 14, air pipe; 15, plug-in liquid level sensor; 16, pressure transmitter; 17, vacuum interface valve; 18, system control box.

[0032] 41, fixed ring; 42, sewage collection sleeve; 43, ball; 44, rotating frame; 45, rotating rod; 46, fan blade; 47, cutting knife one; 48, cutting knife two. DETAILED DESCRIPTION

[0033] The technical solutions in the embodiments of the present application will be described in detail below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, not all embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative labor are within the scope of protection of the present application.

[0034] The embodiments provided by the present application will be described in detail below:

[0035] As Figures 1 to 8As shown, a buried vacuum pump station, including a one-piece shell 1, the top of the one-piece shell 1 is fixedly connected with the access hole 2, the bottom of the access hole 2 is communicated with the inside of the one-piece shell 1, the top of the access hole 2 is rotatably connected with the top cover, and the inside of the access hole 2 is fixedly installed with the ladder, which is convenient for maintenance personnel to enter the inside of the one-piece shell 1 from the inside of the access hole 2 for maintenance, the inside of the one-piece shell 1 is fixedly connected with the tank seal plate 3, the tank seal plate 3 divides the inside of the one-piece shell 1 into the top operation room and the bottom sewage storage room, the bottom of the one-piece shell 1 is spherical, so that the sewage can be gathered to the bottom of the one-piece shell 1 for easy suction, the top of the tank seal plate 3 is the operation room, which is convenient for installing components and maintenance personnel to operate, the top of the tank seal plate 3 is fixedly connected with the sewage inlet vacuum pipe 4, the top of the sewage inlet vacuum pipe 4 extends to the outside of the one-piece shell 1, one end of the sewage inlet vacuum pipe 4 extending to the outside of the one-piece shell 1 is fixedly connected with the sewage pipe of the user, the bottom of the sewage inlet vacuum pipe 4 penetrates through the tank seal plate 3 and is communicated with the sewage storage room, the sewage inlet vacuum pipe 4 is fixedly installed with the blind stem gate valve 5, and the inside of the sewage inlet vacuum pipe 4 is provided with a chopping assembly for chopping solid objects in the sewage.

[0036] As shown, Figures 6 to 8 The chopping assembly comprises a fixed ring 41 fixedly connected in the inside of the sewage inlet vacuum pipe 4, a sewage collecting sleeve 42 fixedly connected on the fixed ring 41, the sewage collecting sleeve 42 is horizontally placed in a funnel shape, an inner surface of the sewage collecting sleeve 42 near the fixed ring 41 is provided with a rolling groove one, the inside of the sewage collecting sleeve 42 is provided with a rolling ball 43 corresponding to the position of the rolling groove one, an outer circle surface of the rolling ball 43 is provided with a rolling groove two corresponding to the rolling groove one on the sewage collecting sleeve 42, the rolling groove one of the sewage collecting sleeve 42 and the rolling groove two of the rolling ball 43 are connected with a rotating frame 44, the rotating frame 44 can rotate on the sewage collecting sleeve 42 in cooperation with the rolling ball 43, the rotating frame 44 is fixedly connected with a rotating rod 45 on the side away from the fixed ring 41, a plurality of fan blades 46 are arranged in a circumferential array on the end of the rotating rod 45 away from the rotating frame 44, the end of the rotating frame 44 away from the rotating rod 45 is fixedly connected with a plurality of cutting knives one 47 arranged in a circumferential array, the inside of the fixed ring 41 is fixedly connected with a plurality of cutting knives two 48 arranged in a circumferential array, a gap for cutting solid objects in the sewage is left between the cutting knives one 47 and the cutting knives two 48, the inclination directions of the cutting knives one 47 and the cutting knives two 48 are opposite, for cutting the solid objects in the sewage in cooperation with the abutting cutting knives two 48 during the rotation of the cutting knives one 47.

[0037] As shown, Figures 1 to 5As shown, the top of the tank sealing plate 3 is fixedly connected with two double support pumps 6, which are specifically cam pumps. The double support pumps 6 are provided with heaters for heating when the dirt enters the double support pumps 6, so as to avoid the problem that the dirt cannot be pumped after condensation due to too low temperature. The side of the double support pumps 6 close to the dirt inlet vacuum pipe 4 is fixedly connected with a vacuum dirt suction pipe 7, the bottom of the vacuum dirt suction pipe 7 extends to the bottom of the inner cavity of the integrated shell 1 through the tank sealing plate 3, so that the double support pumps 6 can completely pump the dirt below the tank sealing plate 3 during pumping. The side of the double support pumps 6 away from the vacuum dirt suction pipe 7 is fixedly connected with a dirt discharge pipe 8, the top of the dirt discharge pipe 8 extends to the outside of the integrated shell 1 through the integrated shell 1, and one end of the dirt discharge pipe 8 located outside the integrated shell 1 is connected with an existing centralized sewage pipeline.

[0038] As shown in the drawings, Figures 1 to 5 The tank sealing plate 3 is fixedly connected with two claw type vacuum pumps 9, the top of each of the two claw type vacuum pumps 9 is fixedly connected with a dust filter 10, the tank sealing plate 3 is fixedly connected with a vacuum suction manifold 12, two transparent filters 11 are fixedly connected between the vacuum suction manifold 12 and the dust filters 10, a steel wire hose is arranged between each of the two transparent filters 11 and the two dust filters 10, the claw type vacuum pumps 9 are fixedly connected with a foul gas discharge pipe 13, the foul gas discharge pipe 13 is composed of two sub-pipes and a main pipe, the two sub-pipes of the foul gas discharge pipe 13 are respectively connected with the two claw type vacuum pumps 9, the main pipe of the foul gas discharge pipe 13 extends upward to above the integrated shell 1, the top of the integrated shell 1 is fixedly connected with an air pipe 14, the inside of the air pipe 14 is provided with a ventilator for rapid ventilation, the bottom of the air pipe 14 is connected with the inside of the integrated shell 1, and the air pipe 14 and the main pipe of the foul gas discharge pipe 13 have the same length at one end outside the integrated shell 1.

[0039] As shown in the drawings, Figures 1 to 5 The top of the tank sealing plate 3 is fixedly connected with an insertion type liquid level sensor 15, which specifically includes a body and a detection head, the detection head of the insertion type liquid level sensor 15 extends to the bottom of the inner cavity of the integrated shell 1 through the tank sealing plate 3, so as to detect the liquid level of the dirt in the dirt storage space in the integrated shell 1, the tank sealing plate 3 is provided with a pressure transmitter 16 for detecting whether there is liquid on the tank sealing plate 3, the tank sealing plate 3 is fixedly connected with a vacuum interface valve 17, the middle of the vacuum interface valve 17 is connected with the dirt storage space below the tank sealing plate 3, so as to pump the water leaked from the operating room components or the water leaked from the outside into the operating room to the dirt storage space below the tank sealing plate 3, the inner side wall of the integrated shell 1 is fixedly connected with a system control box 18, which is used to control the internal components of the operating room.

[0040] In combination with the above preferred embodiment, the following is the entire working process and working principle of the above embodiment:

[0041] The working state is:

[0042] The integrated shell 1 is mainly used in high-altitude plateau areas, and the main body of the integrated shell 1 is buried under the frozen soil layer for at least six meters, wherein the access hole 2, the main pipe of the odor gas discharge pipe 13 and the top end of the air pipe 14 all leak out of the soil layer.

[0043] The shredding assembly shreds the solid matter of the sewage entering the inside of the sewage vacuum pipe 4:

[0044] The claw type vacuum pump 9 is started by the system control box 18, and the claw type vacuum pump 9 draws vacuum in the sewage storage room in the integrated shell 1 through the transparent filter 11 and the vacuum suction pipe 12. The gate valve 5 is in an open state. The user delivers the sewage to the inside of the sewage vacuum pipe 4 through the sewage pipe, and under the action of the vacuum state in the sewage storage room, the sewage flows from the sewage vacuum pipe 4 to the sewage storage room of the integrated shell 1. In the process of the sewage entering the inside of the sewage vacuum pipe 4, the sewage will be concentrated under the collection of the sewage collection sleeve 42, and the flow rate of the sewage will be increased according to the Bernoulli principle. The sewage with high flow rate will impact the fan blade 46, and the sewage impacting the fan blade 46 will drive the rotating rod 45 to rotate, and the rotating rod 45 drives the rotating frame 44 to rotate. At this time, the rotating frame 44 will rotate in the inside of the sewage collection sleeve 42 through the ball 43, so that the high-speed flowing sewage will effectively drive the rotating frame 44 to rotate. The rotating frame 44 rotates and drives the cutting knife one 47 to rotate. The cutting knife one 47 rotates and shreds the solid matter in the sewage with the cutting knife two 48, so that the solid matter in the sewage is cut into solid particles. After the solid matter is shredded by the cutting knife one 47 and the cutting knife two 48, the situation of the solid matter blocking the pipe can be reduced, and the efficiency of the sewage treatment is effectively improved. In addition, the load of the equipment internal components caused by the solid matter is avoided, and the maintenance cost is further reduced.

[0045] The double-support pump 6 transports the sewage:

[0046] When the plug-in liquid level sensor 15 detects that the liquid level of the sewage and the solid particles entering the inside of the sewage storage room is too much, the double-support pump 6 is started by the system control box 18 at this time. At this time, the double-support pump 6 will suck the sewage and the solid particles in the sewage storage room through the vacuum sewage suction pipe 7, so that the sewage and the solid particles flow into the double-support pump 6. The double-support pump 6 discharges the sewage and the solid particles to the sewage discharge pipe 8, and then discharges the sewage and the solid particles to the concentrated sewage pipe through the sewage discharge pipe 8, so as to realize the rapid discharge of the sewage. By the pump suction mode, the sewage can be discharged in time, and the problem of odor caused by the accumulation of the sewage is prevented.

[0047] Gas discharge:

[0048] The odor generated by the sewage emission in the sewage storage room will be emitted in the sewage storage room, when the claw vacuum pump 9 sucks the air in the sewage storage room, the odor in the sewage storage room will be sucked out at the same time, the odor will flow from the vacuum suction manifold 12 to the dust filter 10 through the transparent filter 11, and finally the odor will continue to flow from the dust filter 10 to the claw vacuum pump 9, the claw vacuum pump 9 will discharge the odor from the odor discharge pipe 13 to the outside, realizing the discharge of the odor to the outside, avoiding the storage of the odor in the sewage storage room for too long to generate methane, in addition, it can avoid the corrosion of hydrogen sulfide or ammonia in the odor to the pipeline, and the discharge of the odor can also reduce the risk of explosion.

[0049] The system control box 18 starts the ventilator in the air pipe 14, which can quickly send external air into the operation room in the integrated shell 1 after the ventilator is started. Since the integrated shell 1 is mainly used in high-altitude plateau areas, the temperature in the plateau area is low, and in addition, the external air is sent into the operation room in the integrated shell 1 through the ventilator, which can also discharge the air in the integrated shell 1 to the outside from the air pipe 14, realizing heat dissipation of the equipment in the operation room in the integrated shell 1, preventing the equipment from being unable to dissipate heat during long-term operation underground, reducing the problem of excessively high temperature, ensuring that the equipment always maintains a suitable temperature during operation, reducing the problem of equipment overload caused by excessively high temperature, and improving the service life of equipment operation.

[0050] Leakage accumulation and timely discharge:

[0051] During the long-term operation of the equipment in the operation room, the connection between the equipment in the operation room will leak due to loosening or aging. If the water leakage problem occurs, or the water in the soil layer enters the operation room from the gap in the integrated shell 1, the water will gradually accumulate on the tank sealing plate 3. If the water gradually increases, it is easy to cause the circuit of the equipment in the operation room to be short-circuited, which will cause damage to the equipment. At this time, the pressure transmitter 16 will detect that the water level on the tank sealing plate 3 is too high, and the pressure transmitter 16 will control the vacuum interface valve 17 to open. Under the action of the vacuum interface valve 17, the water accumulated on the tank sealing plate 3 will be sucked into the sewage storage room of the integrated shell 1. The leaked water will enter the sewage storage room and mix with the sewage, and the leaked water will be treated together with the sewage, preventing the leaked water from accumulating in the operation room, avoiding the influence of too much accumulated water on the operation of the equipment in the operation room, and avoiding the problem of short circuit of equipment parts caused by water entering the operation room on the upper part of the integrated shell 1.

[0052] The above only describes the preferred embodiments of the present application and is not intended to limit the present application. Any modification, equivalent replacement, improvement, etc. made within the spirit and principles of the present application shall be included in the protection scope of the present application.

Claims

1. A buried vacuum pumping station, characterized in that, The utility model provides an integrated shell (1), the top of integrated shell (1) is fixedly connected with the access hole (2), and the bottom of access hole (2) is connected with the inside of integrated shell (1), and the inside of integrated shell (1) is fixedly connected with the tank seal plate (3), and the top of tank seal plate (3) is fixedly connected with the dirty vacuum pipe (4), and the dirty vacuum pipe (4) is fixedly installed with the dark rod gate valve (5), and the inside of dirty vacuum pipe (4) is fixedly connected with the chopping assembly, The chopping assembly includes a fixed ring (41) fixedly connected inside the dirty vacuum pipe (4), a dirt collecting sleeve (42) fixedly connected to the fixed ring (41), a plurality of balls (43) arranged inside the dirt collecting sleeve (42), a rotating frame (44) arranged between the dirt collecting sleeve (42) and the balls (43), a rotating rod (45) fixedly connected to one side of the rotating frame (44) away from the fixed ring (41), a plurality of fan blades (46) arranged at the end of the rotating rod (45) away from the rotating frame (44), and a plurality of cutting knives (47) fixedly connected to the end of the rotating frame (44) away from the rotating rod (45). The inside of the fixed ring (41) is fixedly connected with a plurality of cutting knives (48). The top of the access hole (2) is rotatably connected with a top cover, a crawling ladder is fixedly installed inside the access hole (2), the tank seal plate (3) divides the inside of the integrated shell (1) into an operation room at the top and a dirty water storage room at the bottom, the bottom of the integrated shell (1) is spherical, the top of the dirty vacuum pipe (4) extends to the outside of the integrated shell (1), one end of the dirty vacuum pipe (4) extending to the outside of the integrated shell (1) is fixedly connected with a user's sewage pipeline, and the bottom of the dirty vacuum pipe (4) is connected with the dirty water storage room. The dirt collecting sleeve (42) is horizontally placed in a funnel shape, a rolling groove one is formed in the inner surface of the side of the dirt collecting sleeve (42) close to the fixed ring (41), a rolling groove two is formed in the outer surface of the ball (43) corresponding to the rolling groove one of the dirt collecting sleeve (42), the rotating frame (44) is located between the rolling groove one and the rolling groove two, and the inclination directions of the cutting knives (47) and the cutting knives (48) are opposite. Two claw type vacuum pumps (9) are fixedly connected to the tank seal plate (3), a dust filter (10) is fixedly connected to the top of each claw type vacuum pump (9), an evacuation manifold (12) is fixedly connected to the tank seal plate (3), two transparent filters (11) are fixedly connected between the evacuation manifold (12) and the dust filter (10), a foul gas discharge pipe (13) is fixedly connected to the claw type vacuum pump (9), and an air pipe (14) is fixedly connected to the top of the integrated shell (1). Steel wire hose is arranged between the two transparent filters (11) and the two dust filters (10), the exhaust gas pipe (13) is composed of two sub-pipes and a main pipe, the two sub-pipes of the exhaust gas pipe (13) are respectively connected with the two claw type vacuum pumps (9), the main pipe of the exhaust gas pipe (13) extends upwards to above the integrated shell (1), the inside of the air pipe (14) is provided with a ventilator for rapid ventilation, the bottom of the air pipe (14) is connected with the inside of the integrated shell (1), the air pipe (14) and the main pipe of the exhaust gas pipe (13) are located at the same length of the end outside the integrated shell (1); The top of the tank sealing plate (3) is fixedly connected with two double support pumps (6), one side of the double support pump (6) close to the sewage inlet vacuum pipe (4) is fixedly connected with a vacuum sewage suction pipe (7), and the side of the double support pump (6) away from the vacuum sewage suction pipe (7) is fixedly connected with a sewage discharge pipe (8); The double support pump (6) is a cam pump, a heater is arranged on the double support pump (6), the bottom of the vacuum sewage suction pipe (7) extends to the bottom of the inner cavity of the integrated shell (1) through the tank sealing plate (3), the top of the sewage discharge pipe (8) extends to the outside of the integrated shell (1) through the integrated shell (1), and the end of the sewage discharge pipe (8) located on the outside of the integrated shell (1) is connected with the existing sewage centralized pipeline; The top of the tank sealing plate (3) is fixedly connected with an insertion type liquid level sensor (15), the tank sealing plate (3) is provided with a pressure transmitter (16), the tank sealing plate (3) is fixedly connected with a vacuum interface valve (17), and the inner side wall of the integrated shell (1) is fixedly connected with a system control box (18).

2. The subterranean vacuum pump station of claim 1, wherein, The insertion type liquid level sensor (15) specifically includes a body and a detection head, the detection head of the insertion type liquid level sensor (15) extends to the bottom of the inner cavity of the integrated shell (1) downward through the tank sealing plate (3), and the middle part of the vacuum interface valve (17) is connected with the sewage storage space below the tank sealing plate (3).

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