CN112855957A

CN112855957A - Automatic emptying valve and siphon system using same

Info

Publication number: CN112855957A
Application number: CN202011631192.8A
Authority: CN
Inventors: 涂程光; 金忠明
Original assignee: Yijing Xiamen Environmental Technology Co ltd
Current assignee: Yijing Xiamen Environmental Technology Co ltd
Priority date: 2020-12-31
Filing date: 2020-12-31
Publication date: 2021-05-28
Anticipated expiration: 2040-12-31
Also published as: CN112855957B

Abstract

The invention discloses an automatic emptying valve and a siphon system using the same, wherein the emptying valve is a vertically-mounted quick-opening valve and comprises a water inlet connecting pipe, a valve body, a cover plate, an eyelet bolt, a rotating shaft, a valve plate, a gear, a magnet bracket, a movable magnet, a steel wire rope, a fixed pulley, a tension spring and a water outlet connecting pipe, wherein: the water inlet connecting pipe is fixedly connected with the valve body, the cover plate is fixedly connected with the front side and the rear side of the valve body through loose joint bolts, the rotating shafts are respectively arranged in two rotating shaft holes on the cover plate in a penetrating manner, the valve plate is arranged on the rotating shafts in a penetrating manner, and the two valve plates can rotate in a butt-clamping manner in the valve body; the gear is fixedly connected on the rotating shaft and positioned outside the valve body, and the gears are meshed with each other; one end of the moving magnet is symmetrically arranged on the rotating shaft in a rotating mode and is positioned outside the valve body, and the other end of the moving magnet is connected to the tension spring through a steel wire rope and a fixed pulley. The invention has strong functionality and can be widely applied to the technical field of water supply and drainage fluid transmission and control.

Description

Automatic emptying valve and siphon system using same

Technical Field

The invention relates to the technical field of water supply and drainage fluid transmission and control, in particular to an automatic emptying valve and a siphon system using the same.

Background

Siphon system all has the commonality that the water source height of intaking is higher than the export height, but divide again from its operating mode and have two branches, wherein: the system is mainly used for municipal water supply and drainage, and the other system is a negative pressure pipe section system, wherein the whole pipeline has no water flow and flows from bottom to top, the negative pressure pipe section system has strong suction effect on the water flow at a water inlet and is also covered by a generalized siphon system, for example, a roof siphon rainwater system invented about sixty years ago in Europe belongs to the same type, and the system controls the flow rate of water through different pipe diameters, so that gas in the water is separated out, and the water flow is converted from gravity flow to pressure flow.

The working condition of the conventional siphon water supply and drainage system is that the siphon is generated under certain water pressure, and the siphon is broken and the pressure is zero when the siphon is finished. The automatic pressure relief valve used in the common fire fighting field and heating system can be opened under a certain pressure, and closed after the pressure is relieved to a certain pressure, but cannot be closed when the pressure is zero or close to zero.

Therefore, an apparatus capable of solving the above problems has yet to be proposed.

Disclosure of Invention

Aiming at the problems, the invention provides the valve which is automatically opened under certain water pressure without adopting other power, is closed when the pressure is zero or close to zero, has small volume and low manufacturing cost and is suitable for indoor installation environment; in addition, the invention also provides a technical scheme for skillfully realizing the building siphon drainage system by a method of 'storing before discharging' on the basis of the valve.

In order to achieve the purpose, the invention adopts the technical scheme that:

the utility model provides an automatic let out empty valve, let out empty valve and be the fast valve door of opening of vertical installation, include connecting pipe, valve body, apron, stay bolt, pivot, valve plate, gear, magnet support, move magnet, wire rope, fixed pulley, extension spring and the connecting pipe that goes out water into, wherein:

the water inlet connecting pipe is fixedly connected with the valve body, the upper surface, the lower surface, the front surface and the rear surface of the valve body are hollow cuboid, the left side and the right side of the valve body are solid valve walls, the lower part of each solid valve wall is connected with arc surfaces which are concentric and have different radiuses, the cover plate is fixedly connected to the front side and the rear side of the valve body through long bolts, the rotating shafts are respectively arranged in two rotating shaft holes in the cover plate in a penetrating manner, the valve plates are arranged on the rotating shafts in a penetrating manner, and the two valve plates; the gear is fixedly connected to the rotating shaft and positioned outside the valve body, and the gears are meshed with each other; the one end of moving magnet passes through magnet support rotary type symmetry and locates in the pivot, is located the valve body outside, the end of stay bolt is located to the fixed pulley, and the other end of moving magnet passes through wire rope and fixed pulley, connects on the extension spring, go out water connecting pipe rigid coupling on valve body lower part surface.

Furthermore, the longitudinal section of the valve plate is U-shaped and is connected to the rotating shaft through two ends of the valve plate; the valve plate is set to be an eccentric unequal arm structure, the eccentric unequal arm structure is that the area of an inner arm from each pair of rotating shaft projections to a pair of clamping edges is larger than that of an outer arm, and the valve plate is closed by means of self weight.

Furthermore, the two moving magnets are positioned at vertical positions, the magnetic pole directions of the two moving magnets are the same, and the magnetic force surfaces are overlapped; the valve opening pressure is adjusted by adjusting the distance between the moving magnets or the size of the magnets.

Further, when the valve plate is fully opened, the two movable magnets rotate oppositely by 90 degrees and are located at the horizontal position, the magnetic pole directions of the two movable magnets are opposite, the magnetic force surfaces are not overlapped completely, and the closing time of the valve plate can be adjusted by adjusting the length of the steel wire rope and the elastic coefficient of the tension spring.

Furthermore, soft seals are arranged at the joint of the valve plate and the rotating shaft and around the side surface of the valve plate and the rotating shaft; the four corners of the valve body adopt chamfer structures; the integrated water retaining strip is arranged on the edge of the valve plate opposite clamping edge, and the valve plate is always kept at the maximum opening angle when being opened by means of the impact force of water flow on the integrated water retaining strip; it can be cancelled when the valve plate eccentric moment is balanced under the action of extension spring.

Furthermore, in the opening process of the valve plate, the force arm formed by connecting the steel wire rope and the movable magnet is gradually increased, and in the closing process of the valve plate, the force arm is gradually reduced.

The invention also provides a technical scheme that:

the utility model provides an automatic let out siphon system of empty valve, still includes pipeline under pressure, automatic exhaust valve, drainage equipment or gravity flow drain pipe are connected to pipeline under pressure's the end of intaking, pipeline under pressure's play water end or be close to the low elevation position of play water end and connect automatic let out empty valve, pipeline under pressure sets up a plurality of automatic exhaust valve at the upper reaches interval of automatic let out empty valve, just automatic let out empty valve be located pipeline under pressure's the end or pipeline under pressure on the vertical section of low elevation.

Furthermore, the siphon system is applied to a building roof or a viaduct, and a water-steam separation rainwater hopper is arranged at a water inlet of the pressure pipeline.

Furthermore, the siphon system is applied to building sewage discharge, and a vent pipe and/or an overflow pipe are/is additionally arranged on the pressure pipeline.

Compared with the prior art, the invention has the following advantages:

1) the use amount of the pipe is greatly reduced, and the construction cost is greatly reduced; because the flow velocity of the pressure flow is large, the pipe diameter of the pressure pipeline is smaller and less relative to the gravity flow drainage pipeline, and the energy is saved and the carbon is low;

2) the siphon system is a pressure transmission system fundamentally, pipe sections needing to be tiled are not required to be sloped or even can be locally provided with a down slope, steam is not exhausted in the drainage stage of the system, resonance is avoided, and the system can be installed according to the requirements of common pressure pipelines;

3) because the water flow speed in the pressure flow pipeline is high, and the valve has a self-cleaning function when opened and closed every time, different from gravity flow, the condition of pipeline siltation and blockage basically cannot occur, and the workload of pipeline maintenance is greatly reduced.

Drawings

FIG. 1 is a plan view of the automatic emptying valve of the present invention;

FIG. 2 is a cross-sectional view A-A of the automatic emptying valve of the present invention;

FIG. 3 is a cross-sectional view B-B of the automatic emptying valve of the present invention;

FIG. 4 is a front view of the automatic emptying valve of the present invention;

FIG. 5 is a system diagram of the automatic emptying valve and siphon system utilizing the same of the present invention;

FIG. 6 is a system diagram of the present invention in use in rain drainage for a building;

FIG. 7 is a system diagram of the present invention in use in the discharge of construction sewage.

In fig. 1 to 7: the device comprises a pressure pipe 1, an automatic exhaust valve 2, an automatic emptying valve 3, a water-steam separation rainwater hopper 4, a vent pipe 5, an overflow pipe 6, a water inlet connecting pipe 31, a valve body 32, a cover plate 33, a long bolt 34, a rotating shaft 35, a valve plate 36, a gear 37, a magnet bracket 38, a movable magnet 39, a sealing ring 40, a water retaining strip 41, a water outlet connecting pipe 42, a steel wire rope 43, a fixed pulley 44 and a tension spring 45.

Detailed Description

Referring to fig. 1, 2 and 3, the automatic emptying valve of the invention belongs to a vertical unpowered quick-opening automatic valve, and the manufacturing material of the automatic emptying valve can be metal or nonmetal, and the structure is as follows: the water inlet end of the water inlet connecting pipe 31 is connected with an upstream pressure pipeline, the water outlet end of the water inlet connecting pipe 3 is fixedly connected with a valve body 32, the upper and lower and front and rear four sides of the valve body 32 are of a hollow cuboid structure without four corners, the left and right surfaces of the valve body are solid valve walls, the outer part of the solid valve wall is a plane, the inner part of the solid valve wall is an arc surface, the lower part of the solid valve wall is connected with arc surfaces with the same center and different radiuses, two symmetrical limiting steps are naturally formed, the front surface and the back surface of the valve body 32 are symmetrically provided with two rectangular cover plates 33, the long bolts 34 are arranged through four bolt holes at the corner part to be fixed on the valve body 32, two rotating shaft holes are arranged at the middle parts of the two cover plates 33, one rotating shaft 35 is arranged in each rotating shaft hole, and the two rotating shafts 35 are fixedly connected with two ends of a valve plate 36 with eccentric unequal arms in the valve body 32, so that the two valve plates 36 can just rotate in a clamping manner. The valve plate 36 is a U-shaped structure when viewed from the left and right sides, the water pressure bearing surface of the valve plate 36 is rectangular, two ends of the U-shaped structure are connected with the rotating shaft 35, under the matching of the limit steps, the valve plate 36 can rotate 90 degrees, one surface of each pair of rotating shafts 35 outside the valve body 32 is fixedly connected with a spur gear 37, the two gears 37 are mutually meshed, the other surface of each pair of rotating shafts 35 outside the valve body 32 is radially screwed with one end of a cuboid movable magnet 39 through a magnet support 38, the movable magnet 39 and the magnet support 38 can rotate along with the rotating shaft 35, when the valve plate 36 is in a closed state, the magnetic force surfaces of the movable magnet 39 are completely superposed, a fixed pulley 44 is arranged at the tail end of the long bolt 34, the other end of the movable magnet 39 is connected on a tension spring 45 through a steel wire rope 43 and a fixed pulley 44, a sealing ring 40 is arranged at the joint of the valve plate 36 and the rotating shaft 35 and around the, the downstream pipe or direct drain is connected by the outlet connection pipe 42.

Structurally, the eccentric unequal arm structure of the valve plate 36 is a secondary eccentric structure, the primary eccentricity is that the plane of the valve plate 36 is located at the downstream of the rotating shaft 35 when the valve plate 36 is closed, the secondary eccentricity is that the line of each pair of rotating shafts 35 when the valve plate 36 is closed is not in the geometric middle axis of the valve plate 36 in plan view projection, and the two valve plates 36 are also ensured to be synchronous through a gear 37 structure.

Referring to fig. 3, the core essential components of the siphon system using the automatic emptying valve 3 include a pressure pipe 1 and an automatic exhaust valve 2, the water inlet end of the pressure pipe 1 is connected with a drainage device or a gravity flow drainage pipe, the water outlet end or the low-elevation position close to the water outlet end is connected with the automatic emptying valve 3, the pressure pipe 1 is provided with a plurality of automatic exhaust valves 2 at different positions on the upstream of the automatic emptying valve 3, the automatic emptying valve 3 is vertically installed at the tail end of the pressure pipe 1 or any low-elevation vertical section thereof, and different auxiliary facilities need to be added to the siphon system using the automatic emptying valve 3 in different use environments. When installed, the automatic emptying valve 3 is installed at the end of the pressure pipe 1 or any low-elevation vertical section thereof.

The unequal arm structure of the valve plate 36 is that the area of an inner arm projected from the connecting line of each pair of rotating shafts 35 to the opposite clamping edges of the valve plate 35 is larger than that of an outer arm, and the valve plate 36 can be closed by means of self weight. When the valve plate 36 is opened, the opposite clamping edges close to the middle part are downwards rotated, and the characteristic of upwards rotating the two sides not only ensures that the valve wall is clean, but also is not easy to accumulate impurities.

When the valve plate 36 is fully closed, the two moving magnets 39 are in the vertical position, the magnetic pole directions are the same, the magnetic force surfaces are completely overlapped, and the valve opening pressure can be adjusted by adjusting the distance between the moving magnets and the size of the magnets. When the valve plate 36 is fully opened, the two movable magnets 39 rotate in opposite directions by 90 degrees and are positioned in a horizontal position, the magnetic pole directions of the movable magnets 39 are opposite, the magnetic force surfaces are not overlapped completely, and the valve closing time is adjusted by adjusting the length of the steel wire rope and the elastic coefficient of the tension spring. In the opening process of the valve plate 36, the moment arm formed by the connection of the steel wire rope 43 and the movable magnet 39 is gradually increased, and in the closing process of the valve plate 36, the moment arm is gradually reduced.

The working property of the drainage system makes the valve have low requirements on anti-seepage performance, and only the valve plate 36 is connected with the rotating shaft 35 and the periphery of the side surface of the valve plate is provided with soft sealing. The valve plate 36 of the automatic emptying valve 3 ensures that the valve plate 36 is always at the maximum opening angle when being opened by means of the impact force of water flow on the valve plate 36.

Referring to the front elevation of fig. 4, the water bar 41 can be eliminated when the tension spring compensation mechanism has good balance to the eccentric moment.

When the automatic emptying valve is applied to a siphon system, the automatic emptying valve 3 is arranged at the tail end of the pressure pipeline 1 or at the position of the low-elevation vertical section of the pressure pipeline, and a plurality of automatic exhaust valves 2 are arranged at the upstream of the automatic emptying valve 3, as shown in fig. 5.

When the siphon system is applied to the rainwater drainage of a building roof or a viaduct, the added accessory facility is a water-steam separation rainwater hopper 4. When the siphon system is applied to the drainage of building sewage, an additional auxiliary facility is a vent pipe 5, and an overflow pipe 6 can be arranged when the condition is met.

Two specific examples are given below to illustrate typical applications of the present invention.

As shown in fig. 6, the present embodiment is an automatic emptying valve and a siphon system using the same applied to the field of building rainwater. In the system, a plurality of water-vapor separation rainwater hoppers 4 of a roof or a bridge deck of a large-scale bridge are horizontally connected through a pressure pipeline 1, then are converged and connected into a vertical main pipeline of the pressure pipeline 1, are connected with an automatic emptying valve 3 when vertically descending to be close to the ground, are connected into an outdoor inspection well, and are connected with a plurality of automatic exhaust valves 2 at the upper stream of the automatic emptying valve 3 according to requirements. The working process of the system is as follows: rainwater is collected on the roof and enters a steam-water separation rainwater hopper 4 and then is injected into the pressure pipeline 1, the automatic emptying valve 3 is in a closed state, the pressure in the pressure pipeline 1 rises due to the entering of water flow, the air in the pipeline is discharged through the automatic exhaust valve 2, the valve opening pressure of the automatic emptying valve 3 is set to be close to the height of the roof, due to the mutual attraction of the movable magnets 39, when the pressure pipeline 1 is full or nearly full of water flow, gas in the water is discharged through the automatic exhaust valve, the mutual attraction of the movable magnets 39 cannot resist the deflection opening moment of the eccentric unequal arm valve plate 36 generated by the water pressure, the automatic emptying valve 3 is opened, the water flow is discharged in a pressure flow mode, the valve plate 36 keeps the maximum 90-degree opening angle due to the water flow impact of the water retaining strip 42 and the tension of the tension spring, and the automatic emptying valve 3 automatically responds to different working conditions under various conditions.

When the amount of water collected by rainwater cannot reach the designed flow, the water level in the pressure pipe 1 gradually drops until the water level is emptied, and finally the water retaining strip 42 on the valve plate 36 is not impacted by water flow, and the deflection moment generated by the dead weight is just slightly larger than the moment generated by the comprehensive magnetic force and the tension spring, so that the valve plate 36 is naturally closed and enters the next period.

When the amount of the rainwater gathered cannot reach the designed flow, the water level in the pressure pipeline 1 gradually drops and is stabilized at a water level, the valve plate 36 is still kept open due to the impact of the water flow, the water is continuously drained, and the change of the water inflow is also a process of automatic change of the water level. When the water quantity does not reach the designed flow, the common rainwater hopper 4 for steam-water separation cannot completely isolate gas, part of the automatic exhaust valves 2 still work until the rainfall is reduced to be emptied, and the system enters the next period.

When the amount of water collected by rainwater reaches the designed flow, the water level in the pressure pipeline 1 is stabilized at the water level set by the valve opening pressure, the water retaining strip 42 on the valve plate 36 is continuously impacted by water flow, the valve plate 36 is always kept open and drains water, at the moment, the rainwater-water separation rainwater hopper 4 always completely isolates gas, and almost all the automatic exhaust valves 2 stop working.

As shown in fig. 7, the second embodiment is an application of the automatic emptying valve and the siphon system thereof in the field of indoor sewage.

When the building bottom layer is used as a warehouse or other purposes, no or few domestic water facilities exist, and the upper gravity flow vertical pipe system can be collected at the top of the bottom layer to be converted into the siphon pressure flow system. Different from the previous example, the water level corresponding to the valve opening pressure of the automatic emptying valve 3 is only near the bottom of the gravity flow vertical pipe, the upper part is still the gravity flow drainage system, because the water flow is collected, the exhaust requirement is also met, the automatic exhaust valve 2 cannot be installed in a room due to the problem of harmful gas pollution, therefore, the automatic exhaust valve 2 is replaced by the vent pipe 5 connected to the roof, the automatic exhaust valve 2 and the automatic emptying valve 3 at the lower part are installed in an inspection well due to the exhaust problem, and the working process is similar to that of the first embodiment. In this case, an overflow pipe 6 is provided, which serves to connect two adjacent systems and to backup each other, i.e. to prevent the automatic emptying valve 3 from being damaged and unable to be opened, and to be discharged to other adjacent working units through the overflow pipe 6. It should be noted that: when the overflow pipe 6 is not provided, a one-use one-standby double valve can be adopted.

The above embodiment is merely a typical application of the automatic emptying valve and the siphon system using the same in the building field, and the application is also wide in other fields, such as: the large-scale viaduct municipal drainage system can regularly wash the catchment surfaces near the downstream pipeline and the rainwater hopper while draining water with large flow, and can greatly reduce the labor cost for dredging. The following steps are repeated: at miniature power station, rely on this system can play the effect of unmanned on duty automatic electricity generation, promptly, when the water yield of reservoir was deposited to a take the altitude, the valve was opened automatically and is promoted the hydraulic turbine and continue to work certain time. The following steps are repeated: for the condition that the front end is provided with a water pool, the constant pressure is fixed, namely, the quantity is fixed, the system can be used for realizing the quantitative irrigation in the agricultural irrigation, and the system has great significance in arid areas. Besides the field of siphon system in broad sense, it is also applicable to many applications in the field of traditional siphon.

The core component automatic emptying valve can adopt some conventional technical measures to enable the core component automatic emptying valve to have various modifications, such as:

1) in some applications, the valve body 32 may be formed as a hollow cylinder, and the valve plate 36 may be formed as two semicircular planes or as a curved surface.

2) The gear 37 and the magnet are arranged on the same surface of the valve body 32, which is more beneficial to saving the space on the other surface and being beneficial to installation.

3) Instead of using the ordinary long bolt 34, a countersunk head bolt is used, which is more favorable for saving space and facilitating installation, and the like.

The above are just examples of similar valves that can be deformed without inventive work, and these actions are all within the scope of protection of the present application.

Claims

1. An automatic emptying valve is characterized in that: let out empty valve for quick-opening valve of vertical installation, including connecting pipe, valve body, apron, stay bolt, pivot, valve plate, gear, magnet support, moving magnet, wire rope, fixed pulley, extension spring and the connecting pipe that goes out water, wherein:

the water inlet connecting pipe is fixedly connected with the valve body, the upper surface, the lower surface, the front surface and the rear surface of the valve body are hollow cuboid, the left side and the right side of the valve body are solid valve walls, the lower part of each solid valve wall is connected with arc surfaces which are concentric and have different radiuses, the cover plate is fixedly connected to the front side and the rear side of the valve body through loose joint bolts, the rotating shafts are respectively arranged in two rotating shaft holes in the cover plate in a penetrating manner, the valve plates are arranged on the rotating shafts in a penetrating manner, and the two valve plates; the gear is fixedly connected to the rotating shaft and positioned outside the valve body, and the gears are meshed with each other; one end of the moving magnet is rotationally and symmetrically arranged on the rotating shaft through the magnet bracket and is positioned outside the valve body; the fixed pulley is arranged at the tail end of the long bolt, the other end of the movable magnet is connected to the tension spring through a steel wire rope and the fixed pulley, and the water outlet connecting pipe is fixedly connected to the outer surface of the lower portion of the valve body.

2. An automatic emptying valve as defined in claim 1, wherein: the longitudinal section of the valve plate is U-shaped and is connected to the rotating shaft through two ends of the valve plate; the valve plate is set to be an eccentric unequal arm structure, the eccentric unequal arm structure is that the area of an inner arm from each pair of rotating shaft projections to a pair of clamping edges is larger than that of an outer arm, and the valve plate is closed by means of self weight.

3. An automatic emptying valve as defined in claim 2, wherein: soft seals are arranged at the joint of the valve plate and the rotating shaft and around the side surface of the valve plate; the four corners of the valve body adopt chamfer structures; the integrated water retaining strip is arranged on the edge of the valve plate opposite clamping edge, and the valve plate is always kept at the maximum opening angle when being opened by means of the impact force of water flow on the integrated water retaining strip; it can be cancelled when the valve plate eccentric moment is completely balanced under the action of the tension spring.

4. An automatic emptying valve as defined in claim 1, wherein: when the valve plate is completely closed, the two movable magnets are in vertical positions, the magnetic pole directions of the two movable magnets are the same, and the magnetic force surfaces are overlapped; the valve opening pressure is adjusted by adjusting the distance between the moving magnets or the size of the magnets.

5. An automatic emptying valve as defined in claim 1, wherein: when the valve plate is fully opened, the two movable magnets rotate in opposite directions by 90 degrees and are located at the horizontal position, the magnetic pole directions are opposite, the magnetic force surfaces are not overlapped completely, and the closing time of the valve plate can be adjusted by adjusting the length of the steel wire rope and the elastic coefficient of the tension spring.

6. An automatic emptying valve as defined in claim 1, wherein: in the opening process of the valve plate, the force arm formed by connecting the steel wire rope and the movable magnet is gradually increased, and in the closing process of the valve plate, the force arm is gradually reduced.

7. A siphon system with an automatic emptying valve according to any one of claims 1 to 6, further comprising a pressure pipe and an automatic air discharge valve, wherein the water inlet end of the pressure pipe is connected with a drainage device or a gravity flow drainage pipe, the water outlet end of the pressure pipe or a low-elevation position close to the water outlet end of the pressure pipe is connected with the automatic emptying valve, the pressure pipe is provided with a plurality of automatic air discharge valves at intervals upstream of the automatic emptying valve, and the automatic emptying valve is positioned at the tail end of the pressure pipe or on a vertical section of the pressure pipe with low elevation.

8. A siphon system according to claim 6, characterised in that the siphon system is applied to a building roof or viaduct and that a catch-and-catch rainwater hopper is provided at the inlet of the penstock.

9. A syphon system according to claim 6, wherein the syphon system is used in building sewerage and the pressure pipe is supplemented with a snorkel and/or an overflow pipe.