CN107460934B - Closed semi-vacuum sewage discharge system - Google Patents
Closed semi-vacuum sewage discharge system Download PDFInfo
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- CN107460934B CN107460934B CN201710744634.1A CN201710744634A CN107460934B CN 107460934 B CN107460934 B CN 107460934B CN 201710744634 A CN201710744634 A CN 201710744634A CN 107460934 B CN107460934 B CN 107460934B
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- E—FIXED CONSTRUCTIONS
- E03—WATER SUPPLY; SEWERAGE
- E03F—SEWERS; CESSPOOLS
- E03F1/00—Methods, systems, or installations for draining-off sewage or storm water
- E03F1/006—Pneumatic sewage disposal systems; accessories specially adapted therefore
- E03F1/007—Pneumatic sewage disposal systems; accessories specially adapted therefore for public or main systems
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- E—FIXED CONSTRUCTIONS
- E03—WATER SUPPLY; SEWERAGE
- E03F—SEWERS; CESSPOOLS
- E03F5/00—Sewerage structures
- E03F5/10—Collecting-tanks; Equalising-tanks for regulating the run-off; Laying-up basins
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Abstract
The invention relates to a closed semi-vacuum sewage system, which is connected between a toilet drainage system and a municipal pipe network for sewage disposal, and is characterized in that: including airtight black water tank and the vacuum pump station that sets up, the dirty mouthful of advancing of black water tank is linked together with bathroom drainage system's output, be close to into dirty mouthful being equipped with the grid that is arranged in filtering sewage in the black water tank, be equipped with the separation tank subassembly that can carry out sedimentation treatment's vacuum tank and can collect the filth that deposits in the vacuum tank to sewage in the vacuum pump station, the vacuum tank is connected with black water tank and separation tank subassembly respectively, set up the blowdown valves on the connecting channel of black water tank and vacuum pump, the vacuum tank still is linked together through blowdown pump package and municipal pipe network. The closed semi-vacuum sewage discharge system has good air tightness, can prevent odor from overflowing, and can realize three-stage separation of sewage in sewage to reduce the blocking probability.
Description
Technical Field
The invention relates to the technical field of sanitary sewage discharge, in particular to a closed semi-vacuum sewage discharge system applied to drainage of toilets in underground buildings.
Background
At present, the drainage system of the domestic subway public washroom is mostly a traditional gravity drainage system, namely a special sewage pump room is arranged, and a sedimentation tank with a concrete structure is built in the sewage pump room. The fecal sewage and sewage in the toilet flow into the sedimentation tank under the action of flushing water pressure and gravity. When the sewage in the sedimentation tank is stored to a set liquid level, a submersible sewage pump in the sedimentation tank is started to discharge the sewage stored in the tank to a municipal pipe network, namely a one-pit two-pump mode. Such a toilet drainage system has the following disadvantages:
1. the conveying pipeline has to have a certain slope, and when the pipeline reaches a certain distance, a lifting pump station is required to be established to lift sewage and waste water to a certain height and then downwards incline for conveying, so that the energy consumption and the construction cost are increased.
2. The delivery pressure of gravity flow is limited and therefore, to avoid plugging, the pipe diameter of the delivery pipe must be large enough, increasing the construction cost.
3. The sedimentation basin with the concrete structure must be arranged in the space of the underground layer of the toilet, can not realize the drainage of the same layer, and has large occupied area.
4. When the manhole design is used for maintenance, the sedimentation tank with the concrete structure cannot be sealed, so that odor of the fecal sewage in the sedimentation tank overflows, mosquitoes and flies grow and germs are spread, and the sewage pump room and the surrounding environment are greatly polluted.
5. The submersible sewage pump installed in the sedimentation tank is often blocked by fabrics such as silk stockings, maintenance personnel have to wear protective clothing to enter the sedimentation tank for blockage cleaning, and the working environment of the maintenance personnel is extremely severe.
6. After the submersible sewage pump discharges sewage every time, the bottom of the sedimentation tank needs to be reserved with sewage with a certain liquid level, sludge deposition can be generated after long-term reservation, and therefore maintenance personnel need to regularly carry out desilting treatment on sediments in the sedimentation tank.
Therefore, the drainage system has a series of serious problems that the environment of a sewage pump room is severe and the working environment of maintenance personnel is severe in practical application.
There is chinese utility model patent of patent number ZL200820174214.0 (publication number CN201305885Y) to disclose an underground construction bathroom vacuum drainage system, uses and has certain technical advantage in the gravity flow field of being difficult to realize, nevertheless has following not enough in the application:
1. the vacuum sanitary appliance is adopted, the drainage caliber is small, and the blocking probability is high under the condition of large flow of people.
2. A vacuum cleaner blocking a leak can cause the entire system to crash.
3. Compared with the existing gravity flow sanitary appliance, the vacuum sanitary appliance has a complex structure and high cost.
Disclosure of Invention
The technical problem to be solved by the invention is to provide a closed semi-vacuum sewage system aiming at the prior art, which can ensure the air tightness of the system to prevent odor from overflowing and can realize the sufficient separation of sewage to reduce the blocking probability.
The technical scheme adopted by the invention for solving the technical problems is as follows: the utility model provides a half vacuum sewage system of closed, connects and is used for carrying out blowdown work between bathroom drainage system, municipal pipe network, its characterized in that: including airtight black water tank and the vacuum pump station that sets up, the dirty mouthful of advancing of black water tank is linked together with bathroom drainage system's output, is close to in the black water tank advance dirty mouthful be equipped with the grid that is arranged in filtering debris in the sewage, be equipped with the separation tank subassembly that can carry out sedimentation treatment's vacuum tank and can collect the filth that deposits in the vacuum tank to sewage in the vacuum pump station, the vacuum tank is connected with black water tank and separation tank subassembly respectively, set up the blowoff valves on the interface of black water tank and vacuum pump, the vacuum tank still is linked together through blowdown pump package and municipal pipe network.
In order to conveniently acquire the liquid level in the black water tank so as to realize the automatic control of the sewage discharge in the black water tank, a liquid level detection device is arranged on the black water tank and is linked with a sewage discharge valve group.
In order to conveniently acquire different liquid level information in the black water tank and realize the flexibility and stability of pollution discharge control, the closed semi-vacuum pollution discharge system also comprises an electric control cabinet, an air compressor and an electromagnetic valve, wherein a controller is arranged in the electric control cabinet, and the pollution discharge pump set is connected with the controller;
the liquid level detection device comprises at least two pressure sampling pipes for measuring different liquid level heights and liquid level switches connected with the pressure sampling pipes, the pressure sampling pipes are arranged at the top in the black water tank, each liquid level switch and each electromagnetic valve are respectively connected with the controller, and the air compressor and the blowdown valve group are respectively connected with the electromagnetic valves.
In order to improve the reliability of black water tank pollution discharge and meet different pollution discharge flow requirements, the black water tank is connected with the vacuum tank through at least two connecting passages, and the pollution discharge valve group comprises pollution discharge valves arranged on the connecting passages.
Preferably, the liquid level switch is a pneumatic liquid level switch, and the drain valve is a pinch valve.
In order to improve the reliability of vacuum tank pollution discharge, meet different pollution discharge flow requirements and simultaneously ensure the vacuum degree in the vacuum tank, at least two paths of pollution discharge passages are arranged between the vacuum tank and a municipal pipe network, and each cam rotor pump is connected with the vacuum tank and comprises cam rotor pumps arranged on each pollution discharge passage.
In order to prevent the cam rotor pumps from emptying sewage in a sewage discharge passage and ensure that the rotor dry-type heat exchanger causes the temperature of the pump body to rise too high, the outlet end of each cam rotor pump is provided with a water storage device.
In order to conveniently realize the remote control of the closed semi-vacuum sewage system and simultaneously display the working data in real time so as to be convenient to check, a remote monitoring interface and a display screen which are respectively connected with the controller are also arranged in the electric control cabinet.
In order to conveniently realize the automatic control of the sewage pump unit, a vacuum degree sensor capable of detecting the vacuum degree in the vacuum tank is further arranged on the vacuum tank, and the vacuum degree sensor is connected with the controller.
As an improvement, an air outlet which can be connected with a ventilation and exhaust system is arranged on the black water tank.
Compared with the prior art, the invention has the advantages that:
(1) the invention utilizes the black water tank, the vacuum tank and the separation tank assembly to be provided with three-stage separation, can fully reduce foreign matters in sewage, reduces the influence on the sewage pump unit and improves the working reliability of the sewage pump unit.
(2) The invention uses the black water tank and the vacuum tank which are connected at the same time, sewage in the toilet drainage system flows into the black water tank by the gravity flow conveying pressure, and the sewage in the black water tank is sucked into the vacuum tank by the negative pressure action of the vacuum pipe. Therefore, the defect that the conveying pressure of the gravity flow sanitary appliance is insufficient is overcome, and the problem that the vacuum sanitary appliance is easy to block due to small drainage caliber is also solved. The scheme of the invention not only ensures the diameter of the sewage conveying pipeline to reduce the probability of blockage, but also ensures the sewage conveying force and realizes the smooth conveying of the sewage.
(3) According to the invention, a drain valve or a drain pump is not required to be arranged in the black water tank and the vacuum tank, so that the working environment of the drain valve and the drain pump is ensured, the working reliability and the service life of the drain valve and the drain pump are further improved, and meanwhile, the overhaul environment of workers is improved when problems occur.
(4) The pneumatic liquid level switch is adopted, so that the liquid level switch can be prevented from being in direct contact with a detection medium, the anti-interference performance is strong, and a liquid level signal is stable and accurate. And be provided with two ways and get the pipe, measure the inside liquid level signal of black water tank, prevent to lose and lead to the system paralysis out of work because of liquid level signal all the way, improve system stability.
(5) The pinch valve is adopted as the drain valve, has full diameter and strong dirt passing capacity, is communicated and closed by the rubber sleeve of the lining, has no other structures, does not have the problem of hanging of foreign matters, and has good rubber laminating effect when closed under the action of compressed air.
(6) The invention provides a closed black water tank of a water collecting device, wherein the black water tank is provided with an air vent connected with a ventilation and exhaust system in a building, so that the problems of poor air tightness and serious odor overflow of a traditional gravity drainage system are solved, and meanwhile, the black water tank can be matched with a gravity sanitary appliance for use, so that the fault rate is low, and the system operation cannot be influenced after the fault occurs.
Drawings
Fig. 1 is a structural view of a closed type semi-vacuum sewage system in an embodiment of the present invention.
Detailed Description
The invention is described in further detail below with reference to the accompanying examples.
As shown in figure 1, the closed semi-vacuum sewage system comprises a vacuum pump station 1, a black water tank 2, a liquid level detection device, an electromagnetic valve 34, an air compressor 4 and an electric control cabinet 5, wherein a vacuum tank 11 and a separation tank assembly 12 are arranged in the vacuum pump station 1. The vacuum tank 11 is respectively connected with the black water tank 2 and the separating tank 12, a sewage discharge valve group is arranged on a connecting passage of the black water tank 2 and the vacuum pump 11, and the vacuum tank 11 is also communicated with a municipal pipe network through a sewage discharge pump group.
The electric control cabinet 5 is internally provided with a controller 51, a remote monitoring interface 52 connected with the controller 51 and a display screen 53 connected with the controller 51. The controller can be connected with an upper computer through a remote monitoring interface 52, and the communication connection between the upper computer and the electric control cabinet 5 is realized. The upper computer can acquire the working state of the closed semi-vacuum sewage system in real time, and meanwhile, the upper computer can also send a control command to send the control command to the controller 51, and the controller 51 can control the electric device of the closed semi-vacuum sewage system to work according to the control command. In addition, in the working process, the data received or obtained through calculation by the controller 51 can be displayed through the display screen 53, so that technicians can conveniently check the running state of the closed semi-vacuum sewage system.
In this embodiment, the drain of black water tank 2 and the entry of vacuum tank 11 are connected through two connecting channels, and the setting of two connecting channels can improve operational reliability, and when the sewage flow was great simultaneously, two connecting channels switched on work simultaneously, can increase the blowdown flow of sewage. The blowdown valve group comprises blowdown valves arranged on two connecting passages respectively, and in the embodiment, the two blowdown valves adopt pinch valves, namely a first pinch valve 27 and a second pinch valve 28.
The black water tank 2 in this embodiment is a closed box, the number of the black water tanks 2 may be plural as required, at least one dirt inlet 21, 22 is provided on the black water tank 2, and the output end of the toilet drainage system is communicated with the black water tank 2 through the dirt inlet 21, that is, the sewage discharged from the toilet drainage system is discharged into the black water tank 2 from the dirt inlet 21 on the black water tank 2. In addition, the black water tank 2 is also provided with an exhaust port 26 connected with a ventilation and exhaust system, so that odor generated by sewage in the black water tank 2 is output to the ventilation and exhaust system of a toilet system from the exhaust port 26, and meanwhile, the problem of environmental pollution is well solved because the black water tank 2 is of a closed structure.
Be close to into dirty mouthful 21 in the black water tank 2 and be equipped with the grid 23 that is arranged in filtering sewage debris, the filtering action through grid 23 can be to the large granule foreign matter separation in the sewage.
Be provided with liquid level detection device on the black water tank 2, liquid level detection device realizes the blowdown work in the black water tank 2 through the cooperation with automatically controlled cabinet 5, solenoid valve 34, air compressor machine 4. The liquid level detection device in this embodiment includes first pressure pipe 24, second pressure pipe 25, first liquid level switch 32, second liquid level switch 33, and first pressure pipe 24 and second pressure pipe 25 all set up the top in black water tank 2 to vertical setting, the length of first pressure pipe 24 is greater than the length of second pressure pipe 25. Along with the continuous change of the liquid level in the black water tank 2, the pressure values collected by the first pressure sampling pipe 24 and the second pressure sampling pipe 25 gradually change. Set up two and connect the pipe on the one hand and can avoid connecting the pipe the condition that the trouble leads to unable detection liquid level, and then improve the reliability that liquid level detected, on the other hand, through two and connect the setting of pipe and can improve the accuracy that different liquid level detected.
The first liquid level switch 32 is arranged outside the black water tank 2 and connected with the first pressure taking pipe 24, the second liquid level switch 33 is arranged outside the black water tank 2 and connected with the second pressure taking pipe 25, the first liquid level switch 32 and the second liquid level switch 33 are respectively connected with the controller 51, then switching signals of the first liquid level switch 32 and the second liquid level switch 33 are transmitted to the controller 51, the controller judges the liquid level in the black water tank 2 according to the switching signals fed back by the first liquid level switch 32 and the second liquid level switch 33, and then the action of the electromagnetic valve 34 is controlled. In this embodiment, the first liquid level switch 32 and the second liquid level switch 33 both adopt pneumatic liquid level switches, so as to conveniently cooperate with the first pressure taking pipe 24 and the second pressure taking pipe 25.
The electromagnetic valve 34 and the air compressor 4 are both arranged outside the black water tank 2, the air compressor 4, the first pinch valve 27 and the second pinch valve 28 are respectively connected with the electromagnetic valve 34,
in this embodiment, in order to make the system more compact, the first liquid level switch 32, the second liquid level switch 33 and the electromagnetic valve 34 may be integrally installed in one control box 3, and the control box 3 is disposed outside the black water tank 2 and used as a control box of the black water tank 2.
Two sewage discharging passages are arranged between the vacuum tank 11 and the municipal pipe network, and the two sewage discharging passages are finally collected to a sewage discharging pipe and are communicated with the municipal pipe network through the sewage discharging pipe. The two sewage discharge passages are arranged, so that the working reliability can be improved, and meanwhile, when the sewage flow is large, the two connecting passages are conducted to work simultaneously, so that the sewage discharge flow of the sewage can be increased. The sewage pump set comprises a first cam rotor pump 13 and a second cam rotor pump 14 which are respectively arranged on two sewage discharging passages, the first cam rotor pump 13 and the second cam rotor pump 14 are also respectively connected with the vacuum tank 11, the first cam rotor pump 13 and the second cam rotor pump 14 can not only pump the sewage in the vacuum tank 11 to a municipal pipe network, but also can carry out vacuumizing operation on the vacuum tank 11, and the vacuum degree of the vacuum tank 11 is ensured. In this embodiment, the first lobe rotor pump 13 and the second lobe rotor pump 14 are both installed in a dry type, that is, the first lobe rotor pump 13 and the second lobe rotor pump 14 are both installed outside the vacuum tank 11, so that when the first lobe rotor pump 13 and the second lobe rotor pump 14 are out of order, the maintenance is facilitated, and the maintenance environment can be effectively ensured.
The first cam rotor pump 13 and the second cam rotor pump 14 are also connected with a controller 51 in the electric control cabinet 5, and work under the control of the controller 51. In this embodiment, in order to implement full-automatic control, a vacuum sensor VS1 may be disposed in the vacuum tank 11, the vacuum sensor VS1 is connected to the controller 51 in the electric control cabinet 5, when the vacuum sensor VS1 detects the vacuum degree in the vacuum tank 11 and transmits the vacuum degree to the controller 51, and when the vacuum degree data transmitted to the controller 51 reaches a lower limit value, the controller 51 controls the first cam rotor pump 13 and/or the second cam rotor pump 14 to start up, so as to discharge the sewage in the vacuum tank 11 into the municipal pipe network, and simultaneously perform vacuum pumping operation on the vacuum tank 11, thereby implementing automatic control on the first cam rotor pump 13 and the second cam rotor pump 14. A meter VG1 can be further installed on the vacuum tank 11 to monitor and display the vacuum degree in the vacuum tank 11, so that the vacuum degree can be conveniently checked by workers. When the staff finds that the vacuum degree in the vacuum tank 11 reaches the lower limit value, manual operation can be performed on the electric control cabinet 5, and then the control over the first cam rotor pump 13 and the second cam rotor pump 14 is achieved.
In order to prevent the first cam rotor pump 13 and the second cam rotor pump 14 from rotating dry when sewage in the pipeline is emptied, and the temperature of the pump body is increased too high, the outlet ends of the first cam rotor pump 13 and the second cam rotor pump 14 are both provided with water storage devices 15 and 16, and the water storage devices 15 and 16 can store a certain amount of water to avoid the problems. The water storage devices 15 and 16 and the outlets of the sewage pipes connected with the municipal pipe network are respectively connected with meters PG1, PG3 and PG2 which are used for monitoring the pressure values of the outlets of the two water storage devices 15 and 16 and the sewage pipes.
The working process of the closed semi-vacuum sewage discharge system is as follows: the sewage discharged by the toilet drainage system enters the black water tank 2 through the sewage inlet 21 and the sewage inlet 22 on the black water tank 2, and the grid 23 in the black water tank 2 firstly performs first-stage separation on large-particle foreign matters in the sewage, so that the large-particle foreign matters in the sewage are prevented from influencing the work of the liquid level detection device. Along with the continuous rising of the liquid level in the black water tank 2, the air pressure in the black water tank 2 gradually increases, the first pressure taking pipe 24 and the second pressure taking pipe 25 acquire liquid level information in the black water tank 2 according to a detected air pressure signal in the black water tank 2, when the first pressure taking pipe 24 detects that the liquid level in the black water tank 2 reaches a single blow-down valve starting liquid level (low liquid level), the first liquid level switch 32 is conducted under the action of the first pressure taking pipe 24, a conducting signal of the first liquid level switch 32 is transmitted to the controller 51, the controller 51 controls the electromagnetic valve 34 to act, the first pinch valve 27 is further conducted, and sewage in the black water tank 2 is discharged into the vacuum tank 11 through a connecting passage where the first pinch valve 27 is located under the negative pressure action in the vacuum tank 11. When the second pressure taking pipe 25 detects that the liquid level in the black water tank 2 reaches the double blowdown valve start liquid level (middle liquid level), the second liquid level switch 33 is conducted under the action of the second pressure taking pipe 25, a conducting signal of the second liquid level switch 33 is transmitted to the controller 51, the controller 51 controls the electromagnetic valve 34, the electromagnetic valve 34 acts, the second pinch valve 28 is controlled to be opened to blowdown in the same way as the control process of the first pinch valve 27, the first pinch valve 27 and the second pinch valve 28 are simultaneously opened to blowdown at the same time, and the sewage in the black water tank 2 is discharged into the vacuum tank 11 through the two connecting passages under the negative pressure action in the vacuum tank 11. When the liquid level height rises to the alarm liquid level (high liquid level) again, the second liquid level switch 33 acts to the alarm position, the controller 51 obtains the alarm action signal transmitted by the second liquid level switch 33, and then the electromagnetic valve 34 is controlled to act, at the moment, the air compressor 4 provides compressed air to enter the first pinch valve 27 and the second pinch valve 28, the first pinch valve 27 and the second pinch valve 28 are forced to be closed, at the moment, the black water tank 2 stops sewage discharge work, meanwhile, according to the liquid level alarm signal output by the second liquid level switch 33 to the controller 51 in the electric control cabinet 5, the electric control cabinet 5 sends out the alarm signal, meanwhile, the electric control cabinet 5 transmits the liquid level alarm signal to the upper computer through the controller 51, and monitoring personnel of the upper computer can timely obtain the liquid level alarm signal of the black water tank 2 to process.
After the sewage in the black water tank 2 enters the vacuum tank 11, the vacuum degree inside the vacuum tank 11 can be monitored and displayed in real time through an instrument VG1 installed on the vacuum tank 11, and the vacuum degree inside the vacuum tank 11 can be consumed each time the sewage enters the vacuum tank 11. When the vacuum degree in the vacuum tank 11 is lower than the vacuum degree corresponding to the starting work of the sewage pump unit, the first cam rotor pump 13 or the second cam rotor pump 14 is started to vacuumize the vacuum tank 11, and simultaneously, the first cam rotor pump 13 or the second cam rotor pump 14 pressurizes and lifts sewage in the vacuum tank 11 to discharge the sewage into a municipal pipe network.
Under the action of the sewage pump unit, when the vacuum degree in the vacuum tank 11 is higher than the vacuum degree corresponding to the stop of the sewage pump unit, the first cam rotor pump 13 or the second cam rotor pump 14 stops running. And if the vacuumizing time of the first cam rotor pump 13 or the second cam rotor pump 14 exceeds a set value and the vacuum degree in the vacuum tank 11 does not reach the vacuum degree corresponding to the stop of the sewage pump set, the first cam rotor pump 13 and the second cam rotor pump 14 start vacuumizing at the same time until the vacuum degree in the vacuum tank 11 reaches the vacuum degree corresponding to the stop of the sewage pump set. And if the running time of the first cam rotor pump 13 and the second cam rotor pump 14 exceeds the alarm time and the vacuum degree in the vacuum tank 11 does not reach the vacuum degree corresponding to the stop of the sewage pump set, the sewage pump set stops working and sends an alarm signal to the controller 51 in the electric control cabinet 5. The electric control cabinet 5 sends out an alarm signal, meanwhile, the electric control cabinet 5 transmits a vacuum degree alarm signal to the upper computer through the controller 51, and monitoring personnel of the upper computer can timely acquire the vacuum degree alarm signal of the vacuum tank 11 for processing.
In this semi-vacuum sewage systems's of closed working process, grid 23 in the black water tank 2 has realized the first grade separation processing to sewage, and sewage enters into in the vacuum tank 11 back, and silt in the sewage can be silted up in vacuum tank 11 bottom, realizes the second grade separation to sewage through the periodic cleaning to vacuum tank 11 bottom silt. The foreign matter of the sewage after the previous two-stage separation treatment can fall into the separation tank assembly 12, and the third-stage separation of the sewage is realized by cleaning the separation tank assembly 12. So realized the multistage separation to sewage, avoided the filth in the sewage to the influence of closed half vacuum sewage disposal system work.
In this embodiment, the number of dirty mouthful, pressure pipe, liquid level switch, pinch valve, cam rotor pump all sets up to two, in practical application, can change the number of black water tank, dirty mouthful, pressure pipe, liquid level switch, pinch valve, cam rotor pump according to practical application environment, sets up the design of multi-channel control, can prevent to lead to the unable operation of system because of an equipment trouble, reinforcing system stability.
Claims (10)
1. The utility model provides a half vacuum sewage system of closed, connects and is used for carrying out blowdown work between bathroom drainage system, municipal pipe network, its characterized in that: including airtight black water tank and the vacuum pump station that sets up, the dirty mouthful of advancing of black water tank is linked together with bathroom drainage system's output, is close to in the black water tank advance dirty mouthful be equipped with the grid that is arranged in filtering debris in the sewage, be equipped with the separation tank subassembly that can carry out sedimentation treatment's vacuum tank and can collect the filth that deposits in the vacuum tank to sewage in the vacuum pump station, the vacuum tank is connected with black water tank and separation tank subassembly respectively, set up the blowoff valves on the interface of black water tank and vacuum pump, the vacuum tank still is linked together through blowdown pump package and municipal pipe network.
2. A hermetic semi-vacuum sewer system as in claim 1, characterized in that: and a liquid level detection device is arranged on the black water tank and is in linkage with the sewage discharge valve group.
3. A hermetic semi-vacuum sewer system as in claim 2, characterized in that: the sewage pump system is characterized by also comprising an electric control cabinet, an air compressor and an electromagnetic valve, wherein a controller is arranged in the electric control cabinet, and the sewage pump set is connected with the controller;
the liquid level detection device comprises at least two pressure sampling pipes for measuring different liquid level heights and liquid level switches connected with the pressure sampling pipes, the pressure sampling pipes are arranged at the top in the black water tank, each liquid level switch and each electromagnetic valve are respectively connected with the controller, and the air compressor and the blowdown valve group are respectively connected with the electromagnetic valves.
4. A hermetic semi-vacuum sewer system as in claim 3, characterized in that: the black water tank and the vacuum tank are connected through at least two connecting passages, and the drain valve group comprises drain valves arranged on the connecting passages.
5. Closed semi-vacuum sewer system according to claim 4, characterized in that: the liquid level switch is an air pressure type liquid level switch, and the drain valve is a pinch valve.
6. A hermetic semi-vacuum sewer system as in claim 1, characterized in that: at least two sewage discharge passages are arranged between the vacuum tank and the municipal pipe network, the sewage discharge pump set comprises cam rotor pumps arranged on the sewage discharge passages, and each cam rotor pump is also connected with the vacuum tank.
7. A hermetic semi-vacuum sewer system as in claim 6, characterized in that: and a water storage device is arranged at the outlet end of each cam rotor pump.
8. A closed semi-vacuum sewer system as set forth in any of claims 3 to 5, characterized in that: and a remote monitoring interface and a display screen which are respectively connected with the controller are also arranged in the electric control cabinet.
9. A closed semi-vacuum sewer system as set forth in any of claims 3 to 5, characterized in that: the vacuum tank is also provided with a vacuum degree sensor capable of detecting the vacuum degree in the vacuum tank, and the vacuum degree sensor is connected with the controller.
10. A closed semi-vacuum sewer system as set forth in any of claims 1 to 7, characterized in that: and the black water tank is provided with an exhaust port which can be connected with a ventilation and exhaust system.
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| CN201710744634.1A CN107460934B (en) | 2017-08-25 | 2017-08-25 | Closed semi-vacuum sewage discharge system |
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| CN107989150A (en) * | 2017-12-19 | 2018-05-04 | 湖南真创环保科技有限公司 | A kind of remote vacuum high speed drainage system |
| CN107938824A (en) * | 2017-12-19 | 2018-04-20 | 湖南真创环保科技有限公司 | A kind of remote vacuum high speed water discharge method |
| CN112386418A (en) * | 2019-08-16 | 2021-02-23 | 江苏慧明智能科技有限公司 | Remote control bed body vacuum cleaning device and control method thereof |
| CN111576583A (en) * | 2020-06-03 | 2020-08-25 | 上海菲澈环境科技有限公司 | Vacuum sewage disposal method and vacuum sewage disposal system |
| CN113756734B (en) * | 2021-10-13 | 2023-07-21 | 哈尔滨工程大学 | Abandoned drilling cuttings and abandoned drilling fluid conveying device |
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| CN102926455A (en) * | 2012-11-15 | 2013-02-13 | 山东华腾环保科技有限公司 | Partial-vacuum closed drainage system and control method of drainage system |
| CN203080689U (en) * | 2012-11-15 | 2013-07-24 | 山东华腾环保科技有限公司 | Half-vacuum closed-type drainage system |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN204690896U (en) * | 2015-05-28 | 2015-10-07 | 广州市聚源环保设备有限公司 | A kind of sewage collects tapping equipment automatically |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102926455A (en) * | 2012-11-15 | 2013-02-13 | 山东华腾环保科技有限公司 | Partial-vacuum closed drainage system and control method of drainage system |
| CN203080689U (en) * | 2012-11-15 | 2013-07-24 | 山东华腾环保科技有限公司 | Half-vacuum closed-type drainage system |
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