884 results about "Siphon" patented technology

The invention discloses a weak intercalated layer control-based closed conduit-slope system optimization layout method, which comprises the following steps of S1, geological survey and parameter acquisition: accurately positioning a weak intercalated layer through a geological radar and drilling coring, and determining a rock-soil body strength parameter by combining a laboratory rock-soil mechanical test, geological radar data and rock-soil body strength parameters are analyzed through a random forest algorithm, and the interlayer space distribution rule is predicted. By combining geological survey, numerical simulation, intelligent optimization and dynamic monitoring technologies, scientific layout and adjustment of a closed conduit-side slope system are realized, a weak intercalated layer seepage path is accurately cut off, the safety coefficient of the side slope is effectively improved, meanwhile, expansion of a plastic zone is effectively inhibited, settlement of an overlying soil body or large-range deformation of the side slope is reduced, and the stability of the side slope is improved. The seepage stability and the stress slow release capacity of the system are enhanced, the safety of the water diversion project in a complex geological area is improved, and an operable technical path and basis can be provided for layout of similar projects in the future.

The invention discloses a vacuum breaker device with a self-adaptive variable stroke and an anti-backflow function, and relates to the technical field of valve switches, the vacuum breaker device comprises a valve body and an anti-siphon assembly, a flow channel, an inlet, an outlet and a supplementary air inlet are formed in the valve body, and the inlet, the outlet and the supplementary air inlet are communicated with the flow channel; the anti-siphon assembly comprises a first sealing core, a second sealing core and an elastic piece, and the first sealing core is connected with the second sealing core through the elastic piece, so that the vacuum breaker device has an initial state, a positive pressure state and a siphon state; in an initial state, the first sealing core blocks the air supplementing inlet, and the second sealing core blocks the inlet; in a positive pressure state, the first sealing core blocks the supplementary air inlet, and the inlet communicates with the outlet; in a siphon state, the second sealing core blocks the inlet, and the supplementary air inlet communicates with the outlet; according to the technical scheme provided by the invention, the structure of the vacuum breaker device can be simplified, and meanwhile, the self-adaptability of the vacuum breaker device under different working conditions is improved.

The invention provides a combined sand drain drainage structure suitable for a high slope. The combined well drainage structure comprises a row of vertical sand well structures arranged in the side slope along the slope surface line of the side slope and siphon drainage structures arranged at the bottom ends of the row of vertical sand well structures. The vertical sand well structure comprises a vertical well hole, a water permeable pipe and a gravel inverted filter layer, and the water permeable pipe is filled with gravel; the siphon drainage structure comprises a siphon water guide pipe, a horizontal drainage well structure and an inclined drainage pipe. Rainwater of the high slope is collected through the sand wells, the rainwater is collected into the horizontal drainage wells under the action of gravity, underground water collected by the horizontal drainage wells is drained from the drainage holes in the lowest end of the supporting structure through the siphon guide pipes, then negative pressure is generated in the horizontal drainage wells, and drainage of the vertical sand wells is further accelerated. The construction difficulty of the deep drainage structure of the high slope is reduced, and it is guaranteed that underground water enriched under the effects of rainfall, underground pipeline water leakage and the like can be drained in time and rapidly.

The utility model discloses a prefilter and water consuming system relates to prefilter technical field, wherein prefilter includes shell, filter subassembly and outer skeleton, the shell is provided with water filtration cavity, and is communicated water inlet, water outlet and drain outlet of water filtration cavity, water inlet is communicated with water supply end, water outlet is communicated with water consuming end; the filtering assembly is arranged in the water filtering cavity and comprises a plurality of filtering modules distributed in the first direction, each filtering module is provided with a water passing cavity, a first water passing opening and a second water passing opening, the first water passing openings and the second water passing openings are communicated with the water filtering cavity, the second water passing openings are provided with filtering pieces, and at least part of each filtering piece is obliquely arranged; the outer framework is arranged on the outer side of the filtering assembly and provided with a siphon flow channel, a siphon hole and a first discharging opening, the siphon hole and the first discharging opening are communicated with the siphon flow channel, the siphon hole corresponds to the filtering piece, and the first discharging opening is communicated with the sewage draining opening. According to the technical scheme provided by the utility model, the filtering assembly can be flushed, so that the filtering effect of the filtering assembly is ensured.

The utility model relates to the field of rainwater drainage, and particularly discloses a siphon rainwater hopper which comprises a base plate, a top plate and a rainwater pipe connector which are coaxially arranged, a plurality of rectifying plates distributed in an annular array mode are arranged on the surface, close to the base plate, of the top plate, a plurality of flow guiding plates distributed in an annular array mode are arranged on the other surface of the top plate, and a through groove is formed in the middle of the base plate. A flow adjusting ring plate is arranged between the bottom disc and the top disc, the flow adjusting ring plate is elastically connected with the top disc, the flow adjusting ring plate moves towards the top disc after being subjected to acting force, the flow adjusting ring plate surrounds the through groove by a circle, and a stress ring inclining upwards is arranged on the side, away from the through groove, of the flow adjusting ring plate. The bottom of the flow adjusting ring plate is fixedly connected with a flexible shield; according to the rainwater hopper, external sundries can be prevented from entering the rainwater hopper to cause blockage when the rainwater hopper does not discharge water, meanwhile, the sundries are blocked outside the rainwater hopper, cleaning can be achieved without detaching the rainwater hopper structure, convenience and rapidness are achieved, efficiency is high, and the labor intensity of workers is reduced.

The invention discloses a mine ecological restoration water storage drainage device with a monitoring structure, which comprises a detection structure, the detection structure is located on the upper side of a water storage filtering structure, the water storage filtering structure is communicated with a water guide structure, the water guide structure is communicated with a gravel filtering structure, and the gravel filtering structure is communicated with a water storage structure and is used for storing water. The detection structure comprises a first water guide groove, a first monitoring assembly is fixed to the first water guide groove and comprises a supporting plate, a rainproof cover and a monitoring body are fixed to the upper side of the supporting plate, the monitoring body is located on the lower side of the rainproof cover, the water storage structure comprises a first water storage tank, and the first water storage tank communicates with a second water storage tank through a siphon. An auxiliary water storage assembly is arranged on the rear side of the second water storage tank and communicates with the first water storage tank, and the water storage and drainage device with the monitoring structure for mine ecological restoration has the advantages that impurities are automatically filtered and cleaned, the interior of the water storage tank is automatically dredged, water is automatically stored, and flood drainage and discharge treatment is conducted in time in the wet season.

The invention relates to the technical field of photo-thermal power generation, in particular to a fused salt ultra-low liquid level conveying device based on a siphon effect, which comprises a hot fused salt storage tank for storing hot fused salt; the molten salt transition tower is a columnar body and is communicated with the hot molten salt storage tank through a siphon pipeline, the height from a pipeline opening, located in one side of the hot molten salt storage tank, of the siphon pipeline to the bottom of the hot molten salt storage tank is smaller than 0.3 m, the top of the molten salt transition tower is connected with a conveying pump, the conveying pump is connected with a conveying pipe, and the conveying pipe is connected with a conveying pipeline. The inlet of the conveying pipe is lower than the molten salt liquid level of the molten salt transition tower; and the bottom of the molten salt transition tower is at least 1.5 m lower than the bottom of the hot molten salt storage tank. The fused salt ultra-low liquid level conveying device based on the siphon effect can greatly reduce waste of a fused salt dead zone of the hot fused salt storage tank.

The utility model discloses a vertical steam-water separator which comprises a tank body, the tank body is communicated with a steam inlet pipe, an exhaust pipe and a drain pipe, a baffle plate for dividing the tank body into an inner cavity and an outer cavity is arranged in the tank body, and a heat insulation material is packaged in the inner cavity, so that the baffle plate can be kept in a high-temperature state. And water vapor entering the tank body is prevented from being cooled and condensed on the surface of the baffle plate with relatively low temperature. The inner cavity is fixedly arranged on the tank body through two nested and separated barrels, a through hole is formed between the two barrels, high-temperature water in the steam-water separator can be kept for a period of time in the tank body through the two barrels, continuous evaporation of the high-temperature water is facilitated, after the liquid level exceeds the through hole, the electronic liquid level meter sends out a signal, the PLC control system opens the electronic valve, and the steam-water separator is started. The drainage work is completed through the siphon principle.

The present invention discloses an automatic water treatment device for drainage pipes, which relates to the technical field of water treatment for drainage pipes and includes: a rotary weir plate, a seal, a siphon drainage pipe, a medicine storage device, and a push-suction type medicine feeder. The rotary weir plate and the seal cooperate to intercept the sewage in the drainage pipe. The siphon drainage pipe quickly sucks the sewage and alluvium upstream of the rotary weir plate to the downstream of the rotary weir plate. The rotary weir plate and the medicine storage device cooperate to realize the automatic rotation and reset of the rotary weir plate. The medicine storage device and the push-suction type medicine feeder cooperate, and the push-suction type medicine feeder can adjust the dosage of medicine according to the water flow rate of the drainage pipe. For the separate stormwater pipes with mixed sewage, the present invention can prevent the formation of sediments in the drainage pipe during the dry season and automatically and reasonably dose the water flow during the rainy season, so that the mixing ratio of the medicine and the rainwater remains stable.

The invention discloses a permafrost railway roadbed structure design method based on an adsorption type all-season hot rod. The permafrost railway roadbed structure design method comprises the steps that the solar radiation intensity and the annual average ground temperature distribution of permafrost in a target area are evaluated; measuring frozen soil active layer thickness, frozen soil ice content space distribution and frozen soil thermophysical parameters; establishing a refrigeration power model of the adsorption type hot rod, and calibrating the refrigeration efficiency of the adsorption type hot rod; according to the calibrated refrigeration efficiency of the adsorption type hot rod, designing layout parameters of the adsorption type all-season hot rod in the roadbed; according to temperature rise prediction, the refrigeration power model is corrected, and parameters of the adsorption type all-season hot rod are dynamically adjusted; and carrying out a hot rod roadbed prototype test, and carrying out dynamic regulation and control on parameters of the adsorption type all-season hot rod. The limitation that a traditional siphon type hot rod only works in winter is broken through, it is ensured that the roadbed keeps the low-temperature heat dissipation capacity under different climate conditions all the year round, and the heat stability of the railway roadbed in the permafrost region is greatly improved.

The utility model discloses a water delivery pipeline inverted siphon device capable of automatically flushing and discharging sludge, which is characterized in that an air compression device is arranged in a water inlet equipment well, an air flushing valve is arranged behind the air compression device, the other side of the air flushing valve is connected with an air flushing pipe, and the air flushing pipe penetrates through the water inlet equipment well and then extends to the bottom of a water inlet of a descending pipe; the air flushing pipe is communicated with the bottom of the parallel pipe through an inclined tee joint at a certain distance, is communicated with the bottom of the sludge hopper through a regular tee joint, is communicated with the bottom of the ascending pipe through a regular tee joint at a certain distance, and is provided with an adding ring at the tail end of the regular tee joint, and an air outlet hole is formed in the adding ring. The device can automatically flush and discharge sludge according to the deposition degree of the water conveying pipeline, sludge deposited at the bottom of the inverted siphon pipe is flushed into the sludge hopper through compressed air, and then the sludge deposited at the bottom of the sludge hopper is lifted to a sludge discharge wet well through the compressed air and then discharged out of the system.

To provide a trough system, particularly a large trough system with a reduced diameter part, which can more reliably produce a siphon phenomenon and stably propagate the produced siphon phenomenon to an upstream portion.SOLUTION: A trough system 1 comprises an eaves gutter 10, a downspout 45, a connection joint 35 disposed downstream of the eaves gutter and connected to an upper end part of the downspout, and a siphon joint 50 having a reduced diameter part and disposed on the downspout. A flow channel cross section S of the eaves gutter is 11000 mm2 or more. An inner diameter of the downspout is 65 mm or more. A length L7 of the downspout located between the connection joint and the siphon joint is 1 m or more.SELECTED DRAWING: Figure 1

The present invention discloses an anti-siltation and anti-impact water-dividing structure for the intersection of a karst tunnel and an underground river. The structure utilizes an upstream water-dividing weir, a downstream force-dissipating weir, a porous box culvert-type V-shaped inverted siphon water pipe and an open overflow channel, so that the karst tunnel structure divides the underground river intersecting therewith into upper and lower water-passing sections; the lower water-passing section is a porous box culvert-type V-shaped inverted siphon water pipe, and the upper water-passing section is an open overflow channel. The water-dividing structure of the present invention diverts the underground river through the karst tunnel according to the dry season and the flood season. The buried depth of the V-shaped inverted siphon hole water pipe is shallow, and there is no need to adjust the water flow gradient of the underground river. In addition, the V-shaped inverted siphon hole water pipe solves the problem of siltation on the upstream side of the lining structure of the upstream karst tunnel. At the same time, the water-dividing weir reduces the impact load of the water flow on the lining structure during the flood season, so that the upper and lower diverted water loads achieve a certain degree of balance.

To provide a trough system, particularly a large trough system with a reduced diameter part, which can more reliably produce a siphon phenomenon and stably propagate the produced siphon phenomenon to an upstream portion.SOLUTION: A trough system 1 comprises an eaves gutter 10, a downspout 45, a connection joint 35 disposed downstream of the eaves gutter and connected to an upper end part of the downspout, and a siphon joint 50 having a reduced diameter part and disposed on the downspout. A flow channel cross section S of the eaves gutter is 11000 mm2 or more. An inner diameter of the downspout is 65 mm or more. A length L7 of the downspout located between the connection joint and the siphon joint is 1 m or more.SELECTED DRAWING: Figure 1

The invention relates to the technical field of photo-thermal power generation, in particular to a tower type photo-thermal fused salt falling energy dissipation and siphon pressure stabilizing device which comprises a fused salt energy dissipation tower, the fused salt energy dissipation tower is a columnar body, the top of the fused salt energy dissipation tower is connected with a fused salt liquid inlet pipeline, and the bottom of the fused salt energy dissipation tower is provided with a fused salt energy dissipation pool; high-temperature fused salt is conveyed to the fused salt energy dissipation pool through a fused salt liquid inlet pipeline; the hot fused salt storage tank is communicated with the fused salt energy dissipation tower through a siphon pipeline, fused salt in the fused salt energy dissipation pool is conveyed to the hot fused salt storage tank through the siphon pipeline, and an outlet, located on one side of the hot fused salt storage tank, of the siphon pipeline is higher than an inlet, located on one side of the fused salt energy dissipation pool, of the siphon pipeline. According to the tower type photo-thermal fused salt falling energy dissipation and siphon pressure stabilizing device, the risks of high-frequency vibration and cavitation erosion are remarkably reduced.

The invention discloses a siphon power generation device which comprises a water storage pipe, a siphon located in the water storage pipe and a TENG power generation device located at the end of the siphon, and the TENG power generation device is located below the water storage pipe. One end of the siphon penetrates through the bottom of the water storage pipe to be communicated with the TENG power generation device, the other end of the siphon is located in the water storage tank, and the siphon sucks rainwater in the water storage pipe and conveys the rainwater to the TENG power generation device. The siphon power generation device is arranged in a rainwater pipe, so that the kinetic energy of rainwater on the roof can be effectively collected.

The invention discloses a microjet high-pressure homogenizer, and relates to the technical field of homogenizers, the microjet high-pressure homogenizer comprises a rack, a plunger mechanism and a homogenizing mechanism are mounted on the rack, a servo motor is mounted on the rack, the servo motor is in transmission connection with a curved bar mechanism, and the curved bar mechanism is used for pushing materials to be supplied to the plunger mechanism; and the plunger mechanism is used for primarily crushing the materials under the shearing action. The first-stage material storage barrel is used as a total stock bin to store all materials to be treated, the second-stage material storage barrel quantitatively guides the materials into the third-stage material storage hopper through a gap structure formed by the bottom fixing barrel and the barrel cover and the siphonic effect, and when the liquid level of the materials in the second-stage material storage barrel exceeds the top end of the fixing barrel, the materials in the third-stage material storage hopper are discharged. Siphon is formed through the limiting effect of the atmospheric pressure above the liquid level and the gap flow channel, materials continuously and stably flow into the third-stage storage hopper till the materials in the barrel are completely discharged, and the problem that in a traditional feeding mode, feeding is not uniform due to pressure fluctuation or human intervention is solved.

The invention discloses a barrier dam leakage detection patrol and rescue method. The method comprises the following steps: S1, structure sensing; the method comprises the following steps: S101: by using an accumulation body surface particle unmanned aerial vehicle intelligent identification technology, carrying out photogrammetry and analysis on dam material source information and an accumulation rule by utilizing a high-definition image obtained by photographing by an unmanned aerial vehicle close to the surface of an object, and identifying surface materials of an accumulation body; s102, detecting the structure of a barrier body by using barrier dam material structure rapid sensing equipment, and detecting and identifying deep substances of an accumulation body; and S2, emergency drainage: according to analysis of a detection result of a barrier dam material structure, adopting barrier dam body excavation, flood discharge tunnel excavation, pumping or positive siphon drainage measures for emergency rescue of the barrier lake by adopting barrier lake siphon drainage equipment. According to the invention, full-chain technology integration application of "barrier dam structure detection-emergency discharge" is adopted, a barrier dam leakage rapid emergency rescue technical system is constructed, and systematization of the barrier dam leakage emergency rescue technical system is realized.

According to the toilet flushing control method, the water tank device and the toilet bowl, after a supercharging device receives a flushing instruction, the supercharging device runs for T1 time in a first state, then runs for T2 time in a second state and finally runs for T3 time in a third state and then is closed, and a brush ring water outlet and a jet water outlet discharge water at the same time; the water outlet flow of the supercharging device in the first state and the third state is smaller than the water outlet flow of the supercharging device in the second state; wherein the first state is used for discharging air in the pipeline and supplementing water seal in the toilet, the second state is used for flushing the wall surface of the toilet and generating siphoning to take away dirt, and the third state is used for supplementing water seal of the toilet to play a role in deodorizing; during operation of the supercharging device, water flows out of the brush ring water outlet and the jet water outlet at the same time, the brush ring outlet water covers noise generated by jet water, the user experience is improved, meanwhile, compared with a conventional flushing system, switching valves are reduced, the installation space is saved, and the cost is reduced.

The utility model discloses an alkali liquor neutralizing unit which comprises a collecting cabinet, a neutralizing cabinet and a siphon pipeline, wherein the collecting cabinet is used for collecting acidic condensate water from a host air cooler and overflow water from exhaust gas recirculation; the neutralizing cabinet is used for filling alkali liquor and neutralizing the condensate water and the overflow water; and the siphon pipeline is used for communicating the collecting cabinet with the neutralizing cabinet. According to the utility model, non-quantitative host condensate water and washing water for exhaust gas recirculation are neutralized to be neutral by alkali liquor. Due to the fact that the flow of a neutralization water source changes greatly due to different seasons and different host powers, the neutralization effect is prone to being poor, and due to the fact that the neutralization effect is required to be 8-10 in the follow-up water treatment process, the difficulty that the neutralization effect needs to be strictly controlled is large. According to the device disclosed by the utility model, an unquantitative neutralization water source is converted into a quantitative water source for neutralization, so that the amount of added alkali liquor is quantitative, and the neutralization effect is completely controlled to be pH 8-10.

The invention discloses an open-full flow system control method and device for open channel inverted siphon series connection, and belongs to the technical field of water conservancy, and the method comprises the steps: building a time domain open channel control model based on an open channel Saint-Venant equation; establishing a time domain pressure flow control model based on the water hammer control equation of the pressure flow; based on the time domain open channel control model and the time domain pressure flow control model, constructing an open channel inverted siphon series open-full flow system control model; and a model predictive control MPC strategy is adopted to carry out optimization solution on the open channel inverted siphon series open-full flow system control model, optimal control parameters are obtained, and the optimal control parameters are used for controlling the open channel inverted siphon series open-full flow system control model. According to the method, the open channel inverted siphon series open-full flow system can be accurately and effectively controlled.

The application provides a high-temperature tunnel power-free low-temperature river water auxiliary cooling device, which comprises a siphon water suction pipe, a starting device and air supply cooling equipment, the temperature of the river water is lower than the temperature of the tunnel, the siphon water suction pipe comprises a water inlet and a water outlet, the water inlet is directly or indirectly located in a river channel, the water inlet is lower than the water level of the river channel, the elevation of the water inlet is lower than the elevation of the water outlet, the starting device can be connected with the water outlet, and the starting device is used for filling liquid into the cavity of the siphon water suction pipe under the condition that the cavity is not filled with liquid to the full pipe state. The auxiliary cooling device utilizes the siphon effect of the siphon water suction pipe to realize power-free low-temperature river water auxiliary cooling of the high-temperature tunnel, and reduces the energy consumption caused by the traditional water pump and other modes, thereby saving resources and reducing construction cost.

Housing equipped with greywater sorting equipment. This housing includes an analysis cell (60) comprising a siphon (80) installed in a greywater outlet pipe. This siphon comprises: - a fixed body (82) equipped with an inlet pipe (90) and an outlet pipe (92) whose axes (94) of revolution coincide, - a plunger (84) interposed between the inlet pipes (90) and outlet pipes (92) to force the greywater to descend to a lower part (110) of the siphon before rising towards the outlet pipe, - a removable base (86) which completely surrounds the lower part, and - a turbidity sensor (124) fixed, without any degrees of freedom, to the siphon to measure the turbidity of the greywater in the lower part (110) of the siphon or between the lower part and an inlet of the outlet pipe. Fig. 2

The utility model relates to a siphon pipeline drainage device which comprises a building, a gutter and a siphon device, the gutter is arranged on the roof of the building, the siphon device comprises a siphon, a water collecting tank, a sewer pipe, a water suction pipe, an electric valve and a three-way valve, the sewer pipe is connected to the bottom of the water collecting tank, the water suction pipe extends into the gutter, and the water collecting tank is higher than the gutter. The water outlet end of the siphon is lower than the gutter, the water inlet end of the siphon is communicated with the water suction pipe and the sewer pipe through a three-way valve, and an electric valve is arranged on the siphon. In a water storage state, the siphon device can enable rainwater collected by the water collecting tank to flow into the siphon, and the whole siphon is filled with collected water; in the drainage state, the siphon device sucks water in the gutter towards the water suction pipe through the siphon effect, and the water in the gutter is drained to the siphon through the water suction pipe and then drained outdoors. According to the siphon pipeline drainage device, accumulated water in a gutter can be drained in time when the rainfall is large, and the problem that a building leaks rain when the gutter is full of water is solved.

The utility model discloses a novel drainage pump and drainage equipment, and relates to the drainage pump technical field, the novel drainage pump comprises a shell, a water outlet pipe and a control assembly, a water pump motor is installed in the shell, the water outlet pipe comprises a first pipeline and a control pipeline which are mutually communicated, one end of the first pipeline far away from the control pipeline is communicated with the water outlet end of the water pump motor; the control assembly communicates with the control pipeline to control on-off of the water outlet pipe. The control assembly is adopted to control on-off of the water outlet pipe, when the water pump motor is started, the water outlet pipe is kept smooth, and when the water pump motor stops working, the control assembly cuts off a flow path of the water outlet pipe, so that the siphon effect and liquid backflow are avoided, the stability and safety of the system are improved, and the user experience is improved.

The present invention belongs to the field of sewage treatment equipment, and discloses a multifunctional siphon pump protection device for sedimentation tanks in sewage treatment plants. The narrow end of the horn-shaped structure is connected with a pipeline, and the wide end is detachably connected to one end of a strong magnetic box. The other end of the strong magnetic box is connected to a vacuum box through a pipeline, and the other end of the vacuum box is connected to a siphon pump through a pipeline. Valves are provided at the connection between the pipeline and the horn-shaped structure and at the connection between the pipeline and the strong magnetic box. Using this device can greatly improve the quality of sewage, further reduce solid debris in the sewage treatment system, and avoid the situation in the traditional mode where due to improper manual operation, the outlet valve is not closed in time, causing water to enter the siphon pump and resulting in corrosion of the impeller. This device has good corrosion resistance and a long service life, can meet the harsh conditions of sewage treatment plants, and can improve the overall effect of the sewage treatment system.

The invention discloses a sludge dewatering device and method based on a siphon principle, and relates to the technical field of soil dewatering. The device comprises a high-level water tank with a valve, a low-level water tank, a dehydration container and a three-dimensional drainage grid, wherein the high-level water tank is communicated with the low-level water tank through a vertical pipe; the top of the dehydration container is hermetically connected with a cover body with a through hole, the through hole is communicated with the vertical pipe through an elbow and a transverse pipe, the three-dimensional drainage grid comprises a vertical drainage rope and a water guide rope, and a top rope bundle head is inserted into the elbow. During working, water flow in the high-level water tank forms siphoning, and the transverse pipe generates negative pressure to drive sludge water to be discharged into the low-level water tank through the drainage grid and the pipeline. The device is free of power and chemical agents, simple and portable in structure, rapid to assemble, uniform and efficient in dehydration and suitable for engineering construction, disaster emergency and other scenes, and in-situ resource utilization of soil is achieved.

The present invention provides an automatic stop device that simplifies the structure, improves the responsiveness and reliability of stopping fluid delivery, and enables rapid stopping of fluid delivery in emergencies, as well as a siphon-type fluid delivery pump equipped with this automatic stop device. [Solution] The device includes a float 212 that detects the liquid level in the container to which the liquid is being delivered, and a storage section 213 that houses the float and holds air. A communication hole 214 is opened at the top of the storage section, and the held air is sent to the discharge valve 14 of the pump 1 via an air inlet tube 215. A slide valve 211 that operates in response to the float rising connects the top of the storage section and the air inlet tube via the communication hole when the float rises to a predetermined position. As a result, the discharge valve is closed by the released air, the liquid flow in the discharge hose 15 is restricted, and the liquid delivery of the siphon-type liquid delivery pump is stopped. This provides an automatic stop device 2 and a siphon-type liquid delivery pump having an automatic stop device.

The present application relates to a kind of oil well metering technical field, and is a kind of oil well production metering device, metering method, the former includes the pipeline expansion pipe being connected with upper chamber in the upper part of upper chamber, siphon pipe and communication pipe are arranged between upper chamber and lower chamber, siphon pipe inlet is connected with upper chamber, siphon pipe outlet is connected with lower chamber, siphon pipe upper portion elbow pipe is located in the upper part of upper chamber, water content measuring instrument is arranged on siphon pipe, liquid level sensing unit is set at the position corresponding siphon pipe upper portion elbow pipe and siphon pipe inlet in the inside or outside of upper chamber, the end of communication pipe is connected with upper chamber at the position higher than siphon pipe upper portion elbow pipe.The present application utilizes siphon principle to realize the change of oil well production output from irregular oil-gas mixed phase flow to regular gas or liquid single phase flow, realizes the metering of oil well production output, and the metering result can meet the accuracy required by oilfield geology, and the cost is low, safe and reliable, and the degree of automation is high.

The utility model provides a gravity valveless filter and water circulation equipment. The gravity valveless filter comprises a main body (1), an air extractor (2), a flow regulating valve (3) and a turbidity detector (4), a siphon (11) is arranged on the main body (1), the air extractor (2) is connected to the top of the siphon (11), the flow regulating valve (3) is arranged at the power input end of the air extractor (2) and controls power input of the air extractor (2), and the turbidity detector (4) is used for detecting the turbidity of circulating water. The flow regulating valve (3) is linked with the turbidity detector (4), and the opening degree of the flow regulating valve (3) is controlled by the turbidity detected by the turbidity detector (4). According to the gravity valveless filter disclosed by the utility model, the turbidity of circulating water can be accurately controlled.