CN213952419U - Ventilation and pollution discharge device for vacuum well equipment cavity - Google Patents

Abstract

The utility model relates to a vacuum well equipment cavity ventilating and pollution discharging device, which comprises a cylinder body and a pipe clamp valve which is connected with the cylinder body and is used for realizing the on-off of the inside of the cylinder body; a main runner, side runners communicated with the upper end and the lower end of the main runner and a sensor pipeline communicated with the lower ends of the side runners are formed in the cylinder and the pipe clamp valve together; a sensor interface communicated with a sensor pipeline is arranged on the outer wall of the cylinder body; the pipe clamp valve is coaxially arranged with the cylinder and is used for controlling the on-off of the main runner; the utility model discloses in being applied to well lid ventilation formula vacuum well, can guarantee the inside reasonable of vacuum well and ventilate, can solve the problem of the detection of sewage and blowdown on the well lid again to deal with different weather conditions, avoid a large amount of ponding under the bad weather condition to flow into the vacuum well and cause the problem that interior equipment uninterrupted duty increases the energy consumption, reduces life.

Description

Ventilation and pollution discharge device for vacuum well equipment cavity

Technical Field

The utility model relates to a vacuum sewage collects in succession, temporary storage and periodic conveying system technical field, this vacuum sewage collects in succession, temporary storage and periodic conveying system are vacuum well system promptly, the interim sewage collecting tank that adopts the vacuum blowoff valve to carry out periodic blowdown has, and can carry the vacuum collection pipe network in low reaches with the sewage in its sewage collecting tank, the controlling means who uses pressure differential drive control method controls, this vacuum well upper end is provided with the sealed well lid that has the vent, for the ease of realization internal plant's the function of ventilating, nevertheless need ensure again when guaranteeing the function of ventilating that the vacuum well can accomplish automated inspection and automatic blowdown under abominable environmental condition, consequently the utility model discloses then in particular to a vacuum well equipment chamber ventilates and waste fitting discharging.

Background

In the technical field of vacuum domestic sewage collection, transportation and treatment, vacuum domestic sewage collection is the foremost technical field, including the following technical application scenarios: transporting domestic sewage from a building to a remote sewage pool or a vacuum collection transport pipe system by means of a pipe based on the principle of vacuum or negative pressure air flow transport force that air is sucked in at one end and discharged at the other end; the typical technical scheme for realizing the application scene is to adopt a temporary sewage storage tank, wherein the sewage storage tank is provided with an inlet connected with a sewage port of a building, a sewage suction inlet connected with a vacuum sewage conveying pipeline, and a vacuum sewage valve for connecting the sewage suction inlet with the vacuum sewage conveying pipeline; this sewage stock solution jar is inside to be separated for sewage chamber and equipment chamber through the baffle, and wherein the equipment intracavity is used for placing the core control part: the vacuum sewage drainage system comprises a vacuum sewage drainage valve, a pneumatic controller and a liquid level sensor, wherein the vacuum sewage drainage valve is provided with a control system or device, the basic operation process of the vacuum sewage drainage valve is that when the sewage level in a sewage cavity reaches a first preset value, the pneumatic controller applies vacuum force to the vacuum sewage drainage valve to suck and drain sewage, and the pneumatic controller closes the vacuum sewage drainage valve until the sewage level in the sewage cavity falls to another preset value, and the system is defined as a vacuum sewage continuous collection, temporary storage and periodic conveying system, namely a vacuum well system.

As technology advances and the understanding of function and demand increases, vacuum wells have been provided with pneumatic controllers, which have been entirely converted from the first non-venting technology to an active venting solution. For example, a representative known vacuum well with a pneumatic controller for passive ventilation is disclosed in U.S. patent No. US3998736, which teaches that the vacuum well is characterized in that the vacuum blowoff valve and the pneumatic controller are independent equipment chambers outside the sewage chamber of the vacuum well, and both are sealed well covers, ensuring that the equipment chambers and the sewage chamber are not affected by surface sewage, especially heavy rain; however, the ventilation function is the main function of the air controller and the vacuum blowoff valve in the well cover ventilation type vacuum well, the main consideration is to avoid the problem of water blockage caused by the existence of a lifting bend in the gravity flow pipeline in the ventilation type sewage tank of the vacuum well, and further the problem of low ventilation function efficiency, under the condition that the sewage tank is not indirectly used for ventilation, the vacuum well equipment chamber can be used for direct ventilation instead, and further the vacuum well capable of realizing active ventilation is created, because the vacuum well equipment chamber is set into a sealed and dry environment for preventing sewage from entering the pneumatic controller, the direct ventilation by adopting the vacuum well equipment chamber mainly has two modes, one is the ventilation type near the vacuum well, and the ventilation port or the pipeline is configured at the place outside the well cover; secondly, the well lid ventilation formula requires to increase on the well lid has the air vent for realize the inside ventilation of vacuum well, but the well lid is placed subaerial, has the process of various vehicles on it, even torrential rain, and its problem that exists is also very typical, and the defect that specifically exists is as follows:

(1) in rainy days, rainwater can enter the equipment chamber through the vent hole in the well cover, and sewage enters along the air pipeline of the pneumatic controller, so that the pneumatic controller breaks down;

(2) in heavy rain weather, heavy rain falls for several hours or even several days can occur, so that the surface water accumulation is serious, if all the water is drained into the sewage cavity of the vacuum well through the drainage pipe, the vacuum well is forced to continuously work all the time, the energy consumption of vacuum collecting and conveying equipment is increased, the service life is reduced, and the vacuum well needs to be stopped at this time; after rainstorm, after surface accumulated water is emptied, the vacuum well needs to be reset in time to start normal work; in the rainy days, the rainfall is concentrated but small, the rainfall is large at the beginning, the rain stops in a short time, but a small amount of water is accumulated on the ground, and the vacuum well still needs to be ensured to be reset to normally work at the moment;

(3) the work of vacuum well internal arrangement carries out the transmission of signal through level sensor, and when meetting abominable weather environment, level pressure sensor can receive the influence of muddy water on the well lid, and mud can deposit in the bottom and plug up the drain, leads to the unable discharge of muddy water to the sewage chamber.

However, the vacuum well is used for collecting waste water generated by resident schedule domestic water, mainly comes from kitchen and bathroom domestic sewage, and if the kitchen and bathroom domestic sewage cannot be drained in time, the unavailable vacuum well can seriously affect the convenience of the schedule life of residents; however, in domestic situations, the technology accumulation is weak due to the short technological development, and the general method is not optimistic, and the analysis of the representative patent technology is as follows:

(1) the known technology is as follows: chinese patent CN105507410B, vacuum sewage collection and treatment system; chinese invention patent CN105484351B, a sewage collection and automatic discharge well; chinese utility model patent CN208379743U, a sewage collection and automatic discharge well, which adopts a technical scheme that is largely the same as or different from that of the prior art, and basically adopts a mechatronic controller, a liquid level sensor composed of an induction tube and an induction valve, a collection tank, a sealed well lid and a gravity sewage collection inlet pipeline pipe arrangement method; wherein, electronic controller is arranged in the control column which is arranged on the ground and is separated from the vacuum well independently, the liquid level sensor is a mechanical or electronic liquid level sensor, such as a floating ball liquid level meter, the collecting tank is arranged at the bottom, the effects of shielding sludge and collecting sewage are achieved, and the influence on the induction tube in the liquid level sensor is reduced to a certain extent.

The problems existing in the technical scheme are as follows: the lever component in the floating ball liquid level meter is easily affected by impurities in sewage, for example, the lever cannot act due to hair winding, so that the reliability is poor, the cost of the product is increased and the reliability is reduced due to the spare manual sewage discharge pipeline; the existence of the filter screen cover increases the flow resistance of sewage with impurities, and particularly, the sewage pool of the vacuum collection well is divided into two independent cavities and the sewage is filtered by the filter screen cover in the second scheme, so that the measures are not favorable for the gas, liquid and solid impurities in the sewage tank under the power action of gravity flow in a carrier sewage to flow into the suction inlet and be discharged into a vacuum conveying pipeline network, and are more favorable for automatic treatment and control. More seriously, because the well cover is sealed, and the vacuum blowoff valve needs to further suck certain air after emptying the sewage in the sewage tank to realize the mixing of gas and liquid according to the optimal proportion, the high-speed conveying of the sewage in the subsequent vacuum well is facilitated; however, the technical solution cannot timely and effectively supplement extra required air from the wellhead, so that the air pressure on the sewage in the vacuum well is smaller than the atmospheric pressure, thereby affecting the action of the liquid level and air pressure sensor, even causing the misoperation of the controller, and further affecting the use of the vacuum well. And the electrified part also reduces the reliability of the equipment, especially the air buried in the underground vacuum well is mostly dark and humid air, which causes the service life of the battery to be greatly reduced, and the later maintenance and replacement of the product are troublesome.

(2) The known technology is as follows: the Chinese patent CN102121271B is used for a water accumulation well of a vacuum drainage system, and adopts the technical scheme that an electronic controller, a liquid level sensor consisting of an induction pipe and an induction valve, a collection tank, a sealed well cover and a horizontal sewage collection inlet pipeline arrangement method are adopted; wherein electronic controller is arranged in the control column which is arranged on the ground and is separated from the vacuum well independently, the liquid level sensor is a mechanical or electronic liquid level sensor, the collecting tank is arranged at the bottom, the functions of shielding sludge and collecting sewage are achieved, and the influence on the induction tube in the liquid level sensor is reduced to a certain extent.

The technical scheme has the following problems: the single chip microcomputer controller and part of electric components in the electric liquid level sensor are easy to lose efficacy due to the influence of sewage, batteries need to be replaced on time in a power mode, wiring is troublesome and high in cost in a mode of using commercial power as power, more importantly, potential safety hazards and cost are increased due to the configuration of electric power and a power supply, the labor intensity of maintenance is already maintained, electric shock danger is easy to occur, and particularly, the electric liquid level sensor is used for maintenance and under the condition of artificial damage. The control column protruding out of the ground occupies installation space, affects city appearance attractiveness, affects road traffic, and is damaged by vehicle collision. The existence of the collecting tank is not favorable for the air to enter the sewage collecting pipeline system, the sewage conveying efficiency is reduced, and the operation cost of the conveyed vacuum sewage conveying system is further increased. The method for arranging the horizontal sewage collecting inlet pipeline is used for guiding sewage from a building into a sewage tank below a vacuum well by using a pipe, and although the pipe arrangement efficiency is high, the back pressure of a water inlet pipeline of the vacuum well is high, the flow velocity of water is low, and the blockage is easy to occur.

(3) The known technology is as follows: the technical scheme adopted by the utility model is that an electronic controller, a liquid level pressure sensor, a sealed well cover, a horizontal sewage collecting inlet pipeline pipe arrangement method and a split type vacuum well structure are adopted in the Chinese utility model patent CN208777412U and the glass fiber reinforced plastic modularized vacuum collector; the electronic controller is positioned in a control column which is independently and separately installed with the vacuum well on the ground; the structure is modularized, and the equipment cavity and the sewage cavity are designed in a sealing way; split type vacuum well structure, this vacuum well major structure characteristics have one and adopt the vacuum blowoff valve to carry out the underlying formula sewage collection tank of periodic blowdown to and one lie in the equipment tank that is used for depositing equipment such as vacuum blowoff valve on the collection tank, this collection tank and equipment tank can be coaxial integral type or split type, or disalignment integral type or split type.

The technical scheme has the following problems:

1. the single chip microcomputer controller has the advantages that partial electric components in the single chip microcomputer controller are easy to lose effectiveness under the influence of sewage, batteries need to be replaced on time in a power mode, wiring is troublesome and high in cost in a mode of taking commercial power as power, more importantly, potential safety hazards and cost are increased due to the configuration of electric power and a power supply, the labor intensity of maintenance is increased, electric shock risks are easy to occur, and particularly, the electric shock risks are easy to occur during maintenance and under the condition of artificial damage;

2. the control column protruding out of the ground occupies installation space, affects city appearance attractiveness, affects road traffic, and is damaged by vehicle collision.

3. The equipment cavity and the sewage cavity are sealed, so that the sewage in the sewage cavity is prevented from entering the equipment cabin, and the equipment cabin is clean and cool; the consequence of doing so is that the air is not facilitated to enter the sewage collecting pipeline system through the sewage suction port, the essence of the vacuum conveying technology for realizing three-phase gas-liquid-solid turbulent flow conveying of the air, the sewage and the solid garbage is realized, the sewage conveying efficiency is reduced, and the operation cost of the conveyed vacuum sewage conveying system is further increased;

4. the method for arranging the horizontal sewage collecting inlet pipeline is used for guiding sewage from a building into a sewage tank below a vacuum well by using a pipe, and although the pipe arrangement efficiency is high, the back pressure of a water inlet pipeline of the vacuum well is high, the flow velocity of water is low, and the blockage is easy to occur;

5. the split vacuum well structure has the disadvantages of complex structure, high manufacturing cost, and inconvenient disassembly and maintenance due to blockage of a sewage tank; more seriously, the sewage collection tank has small capacity, so that the vacuum well is frequently started, and the service life of the controller and the vacuum blowdown valve is shortened.

(4) The known technology is as follows: the Chinese patent application CN108488443A, a liquid level pneumatic control valve, a corresponding negative pressure drainage system and a negative pressure drainage control method adopt the technical scheme that a pneumatic controller of a high-low liquid level pressure sensor is adopted; the number of the high-low liquid level pressure sensors is two, one is used for detecting the high-level liquid level pressure, and the other is used for detecting the low-level pressure.

The technical scheme has the following problems: the high-low liquid level pressure sensor occupies large space and has high cost; although the pneumatic controller can be adjusted in a delayed manner, the pneumatic controller needs to be disassembled to replace two springs, so that the design is too complicated; the pneumatic controller does not solve the problem that water vapor affects the valve core of the controller in a corrosion mode; the controller can not solve the problem of misoperation of the controller caused by liquid level fluctuation; the controller can not solve the problem that the pneumatic controller is in misoperation due to the pressure fluctuation of the vacuum gas taking port caused by the pressure fluctuation of the vacuum pipeline when the vacuum valve is opened; meanwhile, the controller cannot solve the problem of diagnosing the fault condition of the vacuum valve in the manual inspection process on the premise of not disassembling the pneumatic controller.

Consequently to the problem that above-mentioned exists, need to carry out reasonable structural design, guarantee the ventilated type well lid when doing well and ventilate, in order to solve the problem of the detection of sewage and blowdown on the well lid to realize automated inspection and automatic ventilation and blowdown, finally realize the automatic control of vacuum well, consequently the utility model develops a vacuum well equipment chamber ventilates and waste fitting discharging to solve the problem that exists among the prior art, through the retrieval, not discover with the utility model discloses same or similar technical scheme.

SUMMERY OF THE UTILITY MODEL

The utility model discloses the purpose is: the utility model provides a vacuum well equipment chamber ventilates and waste fitting discharging to in solving among the prior art to well lid ventilation formula vacuum well system, the detection and the blowdown of the sewage above the unable effective solution well lid, and the equipment work problem that paralysis easily appears in leading to the vacuum well.

The technical scheme of the utility model is that: a vacuum well equipment cavity ventilation and pollution discharge device comprises a cylinder body and a pipe clamp valve which is connected with the cylinder body and is used for realizing the on-off of the inside of the cylinder body; a main runner, side runners communicated with the upper end and the lower end of the main runner and a sensor pipeline communicated with the lower ends of the side runners are formed in the cylinder and the pipe clamp valve together; a sensor interface communicated with a sensor pipeline is arranged on the outer wall of the cylinder body; the pipe clamp valve and the cylinder are coaxially arranged and used for controlling the on-off of the main flow passage.

Preferably, the pipe clamp valve comprises a valve body, a hose arranged in the valve body, a pair of clamping components for realizing the on-off of the hose and a control interface for realizing the work of the pair of clamping components by intermittently introducing air or vacuum; the cylinder body comprises a sealing ring, a cover body, a guide pipe and a cylinder body which are positioned above the pipe clamp valve and are sequentially arranged, and a base, a sleeve and a drain pipe which are positioned below the pipe clamp valve and are sequentially nested and matched; the main flow passage realizes circulation along the central axis directions of the sealing ring, the cover body, the guide pipe, the cylinder body, the hose and the drain pipe in sequence, and the inner diameters of the main flow passage are kept the same; the side flow channels are annularly distributed along the circumferential direction of the cover body, the cylinder body, the valve body and the inner part of the base and are communicated; an overflow port which is annularly arranged is arranged between the lower end surface of the cover body and the upper end surface of the guide pipe and is used for realizing the communication between the main runner and the upper end part of the side runner; a plurality of throttling ports are uniformly distributed on the side walls of the sleeve and the drain pipe and are used for realizing the communication between the main runner and the lower end part of the side runner; the sensor pipelines are annularly distributed along the circumferential direction of the cylinder body and the interior of the valve body and are communicated with each other; a plurality of through holes are uniformly distributed in the side wall of the base and the inner wall of the valve body and used for communicating the sensor pipeline with the lower end part of the side flow channel.

Preferably, the sealing ring, the cover body, the barrel body and the valve body are sequentially nested and matched from top to bottom, the guide pipe is nested and arranged at the upper end part of the barrel body, and the upper end surface is not contacted with the lower end surface of the cover body, so that an overflow port is formed; the base, the sleeve and the drain pipe are nested at the lower end of the valve body and are sequentially nested and coaxially arranged from inside to outside.

Preferably, the valve body comprises a pipeline cavity arranged along the central axis direction and an installation cavity arranged in the direction perpendicular to the central axis direction of the pipeline cavity; the hose and the pipeline cavity are coaxially arranged and are embedded in the inner wall of the pipeline cavity, and the side wall of the hose is opposite to the installation cavity; the pair of clamping assemblies are arranged in the mounting cavity and comprise a corrugated diaphragm, a mounting seat and a cover plate for realizing the edge fixation of the corrugated diaphragm, a chuck fixedly connected with the middle part of the corrugated diaphragm and a return spring for realizing the return of the corrugated diaphragm; the mounting seat and the cover plate are both in annular structures, are coaxially arranged with the mounting cavity and are embedded and fixed in the mounting cavity; the edge of the corrugated diaphragm is fixed between the mounting seat and the cover plate, and the middle part of the corrugated diaphragm is fixedly connected with the chuck through a long rod screw; the clamping heads move along the direction of the central axis of the mounting cavity, and the opposite end surfaces of the pair of clamping heads are arranged in parallel; the central axis direction of the reset spring is parallel to the movement direction of the chuck and is arranged by being attached to the inner wall of the mounting cavity; and a closed cavity communicated with the control interface is formed between the outer wall of the hose and the pair of corrugated diaphragms.

Preferably, the upper end of the hose is fixed between the valve body and the lower end of the cylinder body in an embedded mode, the lower end of the hose is fixed between the valve body and the upper end of the sleeve in an embedded mode, and the inner diameter of the hose is the same as that of the main flow channel.

Compared with the prior art, the utility model has the advantages that:

(1) the utility model is applied to the well lid ventilation type vacuum well, which can not only ensure the reasonable ventilation in the vacuum well, but also solve the problems of sewage detection and pollution discharge on the well lid; under a normal state, no accumulated water exists above the well cover, and the main runner is in a normally open state and is used for realizing ventilation; under the bad weather condition, ponding can appear in the well lid top to can be along with the sprue flows in the vacuum well, this in-process passes through the utility model discloses a structural design and vacuum well's cooperation can realize the automated inspection of liquid level, thereby the drive tube presss from both sides the valve and realizes closing of sprue, avoids a large amount of ponding to flow in the vacuum well and cause the problem that interior equipment uninterrupted duty increases the energy consumption, reduces life.

(2) The utility model adopts reasonable cylinder structure design and is matched with the pipe clamp valve for use, thereby effectively solving the problem of internal sludge sedimentation when sewage flows in; because the well lid sets up on the road surface, the inside dust and the mud that contains of ponding that produces under the bad weather condition, if adopt traditional valve body, like the ball valve, the slide valve, the diaphragm valve etc, cause mud sediment to block up very easily, lead to mud unable discharge, and then influence the break-make effect of pipeline, and the utility model discloses in adopt the tube clamp valve, the hose in the tube clamp valve be used for and form the intercommunication between the mainstream canal, when the tube clamp valve is closed, the mud sediment in the ponding is among the hose, even if deposit on the hose, after the tube clamp valve is opened once more, rely on gravity and hose to be in the continuous grow of opening state low pipe diameter, and realize the effective smooth discharge of mud that deposits, can not arouse the jam, more importantly, the inclusion of silk thread impurity such as hair is fine to the tube clamp valve, also can not arouse the not good problem of tube clamp valve closing.

(3) The inside sprue internal diameter that forms jointly with the hose of barrel is unanimous, and inside circulation resistance is little, and no dirt remains, has reduced the dirt moreover as far as possible and has remained on the strong heart element around the pinch valve, effectively avoids remaining dirt to cause the corruption to the pinch valve, and then has improved life.

(4) When extreme weather occurs, the utility model can avoid causing the vacuum well to run for a long time, further causing huge energy consumption and high running cost, and avoid high labor cost for repairing the vacuum well caused by complete paralysis of internal equipment and abnormal flow of personnel of a maintenance team caused by huge labor intensity; meanwhile, accumulated water on the well lid can flow into the sewage cavity to be discharged, so that a small amount of accumulated water near the well lid can be drained in time, the passing of the accumulated water is prevented from being interfered and influenced by a pedestrian path, and the environment is clean and cool; and is also beneficial to avoiding the breeding of mosquitoes and flies and the spread of viruses, and can be dedicated to the construction of a ' green and living ' humanistic ecological environment where people and nature are harmonious '.

Drawings

The invention will be further described with reference to the following drawings and examples:

fig. 1 is a schematic view of an appearance structure of a vacuum well equipment cavity ventilation and pollution discharge device according to the present invention;

FIG. 2 is a cross-sectional view of a vacuum well equipment chamber venting and blowdown apparatus of the present invention;

fig. 3 is a schematic view of the external structure of the pinch valve of the present invention;

fig. 4 is a cross-sectional view of the pinch valve of the present invention taken perpendicular to the central axis of the control port;

fig. 5 is a cross-sectional view of the pinch valve of the present invention taken along the horizontal direction;

FIG. 6 is a cross-sectional structure view of the cylinder and the valve body of the present invention;

fig. 7 is a sectional view of the connection structure of the sealing ring, the cover body, the guide tube and the cylinder body according to the present invention;

FIG. 8 is a sectional view of the mounting structure of the base, the sleeve and the drain pipe according to the present invention;

FIG. 9 is a sectional view of the base, the sleeve and the drain pipe according to the present invention;

fig. 10 is a cross-sectional view of the valve body of the present invention;

FIG. 11 is a schematic view of the flow path inside the base, sleeve and drain pipe of the present invention;

fig. 12 is a schematic view of an installation structure of a vacuum well equipment chamber ventilation and sewage draining device according to the present invention;

fig. 13 is a flow chart of air and dust in a case of a vacuum well equipment chamber ventilating and draining device of the present invention in a weather condition without accumulated water above a well lid;

FIG. 14 is a schematic diagram of the internal hot air flow path of a vacuum well equipment chamber aeration and blowdown apparatus of the present invention in the presence of precipitation in solid form on the ground and having poor mobility;

fig. 15, fig. 16 and fig. 17 are the flow line diagrams of sewage in different states under the weather condition that a large amount of water is accumulated on the ground and the vacuum well equipment cavity ventilation and pollution discharge device of the utility model is used.

Wherein: 1. a barrel;

01. a main flow passage 02, a side flow passage 03 and a sensor pipeline;

11. the device comprises a sealing ring, a cover body, a guide pipe, a sleeve, a cylinder body, a base, a sleeve, a drain pipe, a sensor interface and a water outlet pipe, wherein the sealing ring is 12, the cover body is 13, the guide pipe is 14, the cylinder body is 15, the base is 16, the sleeve is 17, the drain pipe is 18 and the sensor interface is connected with the sensor interface;

131. an overflow port;

151. a second diversion hole 152 and a diversion trench;

161. a choke;

2. a pinch valve;

21. a valve body, 22, a hose, 23, a clamping assembly, 24 and a control interface;

211. a pipeline cavity 212, an installation cavity 213, a positioning cavity 214 and a first flow guide hole;

231. the mounting seat 232, the cover plate 233, the corrugated diaphragm 234, the clamping head 235, the return spring 236 and the closed cavity;

3. a vacuum well;

31. well lid, 32, air vent, 33, baffle, 34, equipment chamber, 35, sewage chamber.

Detailed Description

The following detailed description is made in conjunction with specific embodiments of the present invention:

as shown in fig. 1, a vacuum well equipment cavity ventilation and pollution discharge device comprises a cylinder body 1 and a pipe clamp valve 2 which is connected with the cylinder body 1 and is used for realizing the on-off of the inside of the cylinder body 1; as shown in fig. 2, a main flow passage 01, a side flow passage 02 communicated with the upper and lower ends of the main flow passage 01, and a sensor pipeline 03 communicated with the lower end of the side flow passage 02 are formed in the cylinder 1 and the pinch valve 2; a sensor interface 18 communicated with the sensor pipeline 03 is arranged on the outer wall of the cylinder 1; the pipe clamp valve 2 is arranged coaxially with the cylinder 1 and is used for controlling the on-off of the main flow passage 01.

As shown in fig. 3, 4 and 5, the pinch valve 2 includes a valve body 21, a hose 22 disposed inside the valve body 21, a pair of clamping assemblies 23 for switching on and off the hose 22, and a control interface 24 for intermittently introducing air or vacuum to operate the pair of clamping assemblies 23; the hose 22 may be made of rubber; as shown in fig. 4, the valve body 21 includes a pipe cavity 211 arranged along the central axis direction and an installation cavity 212 arranged perpendicular to the central axis direction of the pipe cavity 211; the hose 22 and the pipeline cavity 211 are coaxially arranged and are embedded and sleeved on the inner wall of the pipeline cavity 211, the upper end of the hose 22 is embedded and fixed between the valve body 21 and the lower end part of the cylinder body, the lower end of the hose 22 is embedded and fixed between the valve body 21 and the upper end part of the sleeve, the inner diameter of the hose 22 is the same as that of the main pipeline 01, and the side wall of the hose is opposite to the installation cavity 212; the pair of clamping assemblies 23 are arranged in the mounting cavity 212, as shown in fig. 5, and structurally comprise a corrugated diaphragm 233, a mounting seat 231 and a cover plate 232 for fixing the edge of the corrugated diaphragm 233, a clamping head 234 fixedly connected with the middle part of the corrugated diaphragm 233, and a return spring 235 for returning the corrugated diaphragm 233; the mounting seat 231 and the cover plate 232 are both in an annular structure, are coaxially arranged with the mounting cavity 212 and are embedded and fixed in the mounting cavity 212; the edge of the corrugated diaphragm 233 is fixed between the mounting seat 231 and the cover plate 232, and the middle part is fixedly connected with the chuck 234 through a long rod screw; the clamping heads 234 move along the central axis direction of the mounting cavity 212, and the opposite end surfaces of the pair of clamping heads 234 are arranged in parallel; the central axis direction of the return spring 235 is parallel to the movement direction of the chuck 234 and is arranged in a manner of being attached to the inner wall of the mounting cavity 212; a sealed cavity 236 is formed between the outer wall of the hose 22 and the pair of corrugated diaphragms 233 and communicates with the control port 24.

The working principle of the pipe clamp valve 2 is as follows: air is intermittently introduced into the control interface 24 or vacuum is formed, when air is introduced into the control interface 24, air pressure at two ends of the corrugated diaphragm 233 is the same, the corrugated diaphragm is in a reset state under the action of the reset spring 235, and the pair of clamping heads 234 do not generate acting force on the hose 22, so that the hose 22 is in a normally open state; when a vacuum is formed at the control interface 24, a vacuum is formed in the closed cavity 236, and the air pressure at the outer end of the corrugated diaphragm 233 is greater than the air pressure at the inner end, so that the corrugated diaphragm 233 is pushed to drive the pair of clamping heads 234 to move towards one side of the hose 22 and clamp the hose 22, so that the hose 22 is in a normally closed state.

As shown in fig. 6, the cylinder 1 comprises a sealing ring 11, a cover 12, a guide pipe 13 and a cylinder 14 which are arranged above the pinch valve 2 in sequence, and a base 15, a sleeve 16 and a drain pipe 17 which are arranged below the pinch valve 2 in sequence and are nested and matched in sequence; as shown in fig. 2, the main flow passage 01 sequentially flows along the central axes of the sealing ring 11, the cover 12, the guide pipe 13, the barrel 14, the hose 22 and the drain pipe 17, and the inner diameters thereof are kept the same; the side flow passage 02 is annularly distributed along the inner circumference of the cover body 12, the barrel body 14, the valve body 21 and the base 15 and is communicated with the inner circumference; the sensor pipeline 03 is annularly distributed along the inner circumference of the cylinder body 14 and the valve body 21 and is communicated, the upper end of the sensor pipeline extends to the upper end face of the cylinder body 14, the lower end of the sensor pipeline extends to the lower end face of the valve body 21, and sealing plates are respectively covered at the upper end and the lower end of the sensor pipeline; more specifically, the communication relationship among the main flow passage 01, the side flow passage 02, and the sensor line 03 is as follows:

first, the communication between the upper end of the main flow channel 01 and the side flow channel 02: firstly, as shown in fig. 7, the sealing ring 11, the cover 12, the barrel 14 and the valve body 21 are sequentially nested and matched from top to bottom, the guide pipe 13 is nested and arranged at the upper end of the barrel 14, and the upper end surface is not contacted with the lower end surface of the cover 12, so as to form an annular overflow port 131 for communicating the main flow passage 01 with the upper end of the side flow passage 02; in order to ensure the smooth inflow of sewage, the upper end part of the main flow channel 01 in the sealing ring 11 and the upper end part of the main flow channel 01 in the guide pipe 13 are both trumpet-shaped.

Secondly, the lower end of the main flow channel 01 is communicated with the side flow channel 02: firstly, as shown in fig. 8, the base 15, the sleeve 16 and the drain pipe 17 are nested at the lower end of the valve body 21 and are sequentially nested and coaxially arranged from inside to outside; as shown in fig. 9, a plurality of chokes 161 are uniformly arranged on the side walls of the sleeve 16 and the drain pipe 17 for communicating the main flow passage 01 with the lower end of the side flow passage 02, and the specific flow path is shown in fig. 11.

Thirdly, the lower end of the side flow passage 02 is communicated with the sensor pipeline 03: a plurality of through holes are uniformly distributed on the side wall of the base 15 and the inner wall of the valve body 21, each through hole comprises a first guide hole 214 and a second guide hole 151 and is used for realizing the communication between the sensor pipeline 03 and the lower end part of the side flow passage 02, more specifically, as shown in fig. 10, the lower end of the valve body 21 is provided with a positioning cavity 213 for nesting and matching the base 15, the sleeve 16 and the drain pipe 17, the side wall of the positioning cavity 213 is uniformly provided with a plurality of first guide holes 214 communicated with the sensor pipeline 03, as shown in fig. 9, the side wall of the base 15 is uniformly provided with a plurality of second guide holes 151, the height of the outer wall aligned with the second guide holes 151 is provided with a guide groove 152 which is annularly arranged, and after the base 15 is nested and installed in the positioning cavity 213, the guide groove 152 is aligned with the first guide holes 214, so that the communication between the lower end part of the side flow passage 02 and the sensor pipeline 03 is realized; part of the flow circuit is shown in figure 11.

The utility model is used for installing in the well lid ventilation type vacuum well 3, as shown in fig. 12, the vacuum well 3 is installed under the road surface, the well lid 31 at the upper end is flush with the road surface, the well lid 31 is provided with the vent hole 32 communicated with the main runner 01; inside baffle 33 that is provided with of vacuum well 3 to with 3 internal partitions of vacuum well for being in the equipment chamber 34 of top and being in the sewage chamber 35 of below, the utility model discloses install in equipment chamber 34, terminal surface laminating under sealing washer 11 and the well lid 31 of upper end, the lower tip runs through baffle 33 and is linked together with sewage chamber 35, its side has sensor interface 18 and control interface 24, is provided with the controller between two interfaces, and the effect of this controller is the control to control interface 24 department through the signal realization of 18 transmissions of sensor interface, the utility model is used for ventilate and protect with waste fitting discharging to 3 equipment chambers of vacuum well 34, consequently will not detail the structure of controller, its rationale does: when the sensor interface 18 detects that the liquid level in the sensor pipeline 03 rises to a high liquid level, the controller controls the interface 24 to form vacuum, and when the sensor interface 18 detects that the liquid level does not reach the high liquid level, the controller controls the interface 24 to be communicated with air; as can be seen from the working principle of the pinch valve 2, when the control port 24 is evacuated, the pinch valve 2 is closed, and when the control port 24 is evacuated, the pinch valve 2 is opened.

Under the weather condition of difference, the ponding condition of well lid 31 upper end is different, and is now to the weather condition of difference, right the utility model discloses a theory of operation carries out detailed explanation:

(1) sunny days and cloudy days, namely, the weather without water accumulation above the well cover 31: the air and dust flow path is as shown in fig. 13, and at this time, no water exists in the sensor pipe 03, so the pinch valve 2 does not operate, and in an open state, air, dust and mud on the well lid 31 can smoothly pass through the pinch valve 2.

(2) Snow, hail, i.e. the type of precipitation whose ground has a solid form and is poorly mobile: in this case, since the interior of the vacuum well 3 has the climate characteristics of being warm in winter and cool in summer, when the vacuum well 3 is not in operation, as shown in fig. 14, the high-humidity and high-heat air in the sewage chamber 35 flows upward, gradually melts the snow near the vent hole 32 in the floor well lid 31 and melts the snow into snow water, and at this time, a small amount of snow water and air on the floor flows into the sewage chamber 35 along the main flow passage 01 together with dust.

(3) Rainstorm, flood, i.e. weather with a large and persistent accumulation on the ground: in an initial state, a large amount of surface accumulated water enters the sewage cavity 35 through the ventilation of the well cover 31 and the main flow channel 01, and the entering water amount is far larger than the drainage water amount of the vacuum well 3 during automatic sewage drainage because of large water amount, so that the liquid level in the sewage cavity 35 rises rapidly until the liquid level reaches the top and contacts with the lower surface of the partition plate 33; then, as shown in fig. 15, the main flow channel 01 is filled with accumulated water, and the liquid level rises continuously; when the liquid level rises to the upper end surface of the guide pipe 13, i.e. the overflow port 131, as shown in fig. 16, the sewage after precipitation and purification begins to flow into the side flow passage 02 through the overflow port 131; because the side flow passage 02 is communicated with the sensor pipeline 03, the liquid level in the sensor pipeline 03 can gradually rise, when the liquid level rises to a high level, the controller connected with the liquid level works to enable the control interface 24 connected with the liquid level to form vacuum, the pipe clamp valve 2 is closed, as shown in fig. 17, when the main channel 01 is closed, no more water above the surface will enter the vacuum well 3, the sewage remained in the side channel 02 and the sensor pipeline 03 is discharged from the drain pipe 17 through the throttle orifice 161, the throttling orifice 161 has a certain damping time-delay function, for example, it takes 1 hour for the sewage inside the sensor pipeline 03 to completely flow out, this water capacity is very limited to the influence of sewage chamber 35 liquid level, learns through the experiment, and sensor pipeline 03 is inside need blowdown 100 times during design and estimated value, just can arouse that liquid level reachs high liquid level in sewage chamber 35, and then realizes once blowdown operation.

In the process, as the sewage cavity 35 in the vacuum well 3 is discharged through the vacuum blowoff valve, the sewage discharge efficiency and the sewage discharge capacity of the vacuum blowoff valve are far greater than the sewage inlet amount of the throttle orifice 161, the working frequency of the vacuum blowoff valve is determined by the inlet flow speed and the inlet flow rate of the throttle orifice 161 and the volume corresponding to the high-low liquid level difference of the sewage cavity 35, the larger the volume is, the smaller the flow speed of the throttle orifice 161 is, the smaller the flow rate of the throttle orifice 161 is, the lower the working frequency of the vacuum blowoff valve is, and the longer the working time is; the method ensures that the vacuum well 3 does not work continuously frequently, and reduces the energy consumption of the whole vacuum well 3 system to the maximum extent.

(4) Gust of rain, i.e. weather with a small amount of water on the ground: dust in the air, a small amount of rainwater mixed silt and dirt are discharged into the sewage chamber 35 along the main runner 01 under the action of gravity.

The above embodiments are only for illustrating the technical concept and features of the present invention, and the purpose of the embodiments is to enable those skilled in the art to understand the contents of the present invention and to implement the present invention, which cannot limit the protection scope of the present invention. It will be evident to those skilled in the art that the invention is not limited to the details of the foregoing illustrative embodiments, and that the present invention may be embodied in other specific forms without departing from the spirit or essential attributes thereof, and therefore, the present invention is considered to be exemplary and not restrictive in any way, since the scope of the present invention is defined by the appended claims, rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein, and therefore any reference signs in the claims are not intended to be construed as limiting the claims concerned.

Claims (5)

1. A vacuum well equipment cavity ventilation and pollution discharge device is characterized in that: the device comprises a cylinder body and a pipe clamp valve which is connected with the cylinder body and is used for realizing the on-off of the interior of the cylinder body; a main runner, side runners communicated with the upper end and the lower end of the main runner and a sensor pipeline communicated with the lower ends of the side runners are formed in the cylinder and the pipe clamp valve together; a sensor interface communicated with a sensor pipeline is arranged on the outer wall of the cylinder body; the pipe clamp valve and the cylinder are coaxially arranged and used for controlling the on-off of the main flow passage.

2. The vacuum well equipment chamber venting and blowdown apparatus of claim 1, wherein: the pipe clamp valve comprises a valve body, a hose arranged in the valve body, a pair of clamping components for realizing the on-off of the hose and a control interface for realizing the work of the pair of clamping components by intermittently introducing air or vacuum; the cylinder body comprises a sealing ring, a cover body, a guide pipe and a cylinder body which are positioned above the pipe clamp valve and are sequentially arranged, and a base, a sleeve and a drain pipe which are positioned below the pipe clamp valve and are sequentially nested and matched; the main flow passage realizes circulation along the central axis directions of the sealing ring, the cover body, the guide pipe, the cylinder body, the hose and the drain pipe in sequence, and the inner diameters of the main flow passage are kept the same; the side flow channels are annularly distributed along the circumferential direction of the cover body, the cylinder body, the valve body and the inner part of the base and are communicated; an overflow port which is annularly arranged is arranged between the lower end surface of the cover body and the upper end surface of the guide pipe and is used for realizing the communication between the main runner and the upper end part of the side runner; a plurality of throttling ports are uniformly distributed on the side walls of the sleeve and the drain pipe and are used for realizing the communication between the main runner and the lower end part of the side runner; the sensor pipelines are annularly distributed along the circumferential direction of the cylinder body and the interior of the valve body and are communicated with each other; a plurality of through holes are uniformly distributed in the side wall of the base and the inner wall of the valve body and used for communicating the sensor pipeline with the lower end part of the side flow channel.

3. The vacuum well equipment chamber venting and blowdown apparatus of claim 2, wherein: the sealing ring, the cover body, the cylinder body and the valve body are sequentially nested and matched from top to bottom, the guide pipe is nested and arranged at the upper end part of the cylinder body, and the upper end surface is not contacted with the lower end surface of the cover body, so that an overflow port is formed; the base, the sleeve and the drain pipe are nested at the lower end of the valve body and are sequentially nested and coaxially arranged from inside to outside.

4. The vacuum well equipment chamber venting and blowdown apparatus of claim 2, wherein: the valve body comprises a pipeline cavity arranged along the central axis direction and an installation cavity arranged in the direction vertical to the central axis direction of the pipeline cavity; the hose and the pipeline cavity are coaxially arranged and are embedded in the inner wall of the pipeline cavity, and the side wall of the hose is opposite to the installation cavity; the pair of clamping assemblies are arranged in the mounting cavity and comprise a corrugated diaphragm, a mounting seat and a cover plate for realizing the edge fixation of the corrugated diaphragm, a chuck fixedly connected with the middle part of the corrugated diaphragm and a return spring for realizing the return of the corrugated diaphragm; the mounting seat and the cover plate are both in annular structures, are coaxially arranged with the mounting cavity and are embedded and fixed in the mounting cavity; the edge of the corrugated diaphragm is fixed between the mounting seat and the cover plate, and the middle part of the corrugated diaphragm is fixedly connected with the chuck through a long rod screw; the clamping heads move along the direction of the central axis of the mounting cavity, and the opposite end surfaces of the pair of clamping heads are arranged in parallel; the central axis direction of the reset spring is parallel to the movement direction of the chuck and is arranged by being attached to the inner wall of the mounting cavity; and a closed cavity communicated with the control interface is formed between the outer wall of the hose and the pair of corrugated diaphragms.

5. The vacuum well equipment chamber venting and blowdown apparatus of claim 4, wherein: the upper end of the hose is fixed between the valve body and the lower end of the cylinder body in an embedded mode, the lower end of the hose is fixed between the valve body and the upper end of the sleeve in an embedded mode, and the inner diameter of the hose is the same as that of the main flow channel.

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