Flushing device and time-delay adjustment facility blowdown system and method adopting flushing device

Abstract

The flushing device comprises a floating body, the lower portion of the floating body is connected with a water storage shell through a valve body, and a water storage cavity is formed in the water storage shell; the floating body can drive the valve body to achieve opening and closing of communication between the upper portion of the water storage cavity and the external atmospheric environment or the external water environment in a one-way communication mode. In the water inlet stage of the water storage cavity of the delayed adjustment facility, the valve body is opened to realize water storage of the water storage cavity of the device; the delay adjusting facility conducts slow-release drainage through an automatic slow-release device, the upper portion of a water storage cavity of the device and external air are sealed through closing of a valve body, and a certain amount of water is reserved in the water storage cavity. When the automatic blowdown device of the time-delay adjusting facility carries out automatic blowdown and the water level of the water storage cavity is lowered to the lower opening of the device, water stored in the water storage cavity rapidly flows out to wash sediments attached to the bottom of the inner side of the water storage cavity and is discharged together with sewage, the blowdown effect is improved, and long-term stable operation of the time-delay adjusting facility is guaranteed.

Description

Technical Field

[0001] The invention relates to the technical field of water purification and control, and in particular to a flushing device and a sewage discharge system and method of a time-delay regulating facility using the device. Background Art

[0002] Sponge city means that the city can absorb, store, infiltrate and purify water like a sponge when it rains, and release and utilize the stored water when needed. In view of the actual needs of sponge city construction, delayed regulation facilities can effectively meet the water quantity and water quality control indicators in sponge city construction. The process facility uses the rainwater storage space to collect the volume of rainwater runoff that needs to be controlled. The collected rainwater is precipitated and purified in the storage space, and the pollutants in the rainwater gradually settle at the bottom of the facility. After a certain residence time, the clean rainwater on the top of the facility is released into the rainwater system through the slow release device; after the purified rainwater is discharged and the water level in the storage space is lowered to the sewage level, the sewage containing a large amount of pollutants at the bottom of the facility is discharged into the sewage system through the sewage discharge device. The delayed regulation facility plays a role in precipitation, purification and delayed regulation of rainwater, which can not only reduce the peak flow of runoff, but also control runoff pollution well.

[0003] At present, when delayed regulation facilities are used to control rainwater flow and pollutants, there are mainly two ways to control the discharge of sewage containing a large amount of pollutants at the bottom of the facility: The first is to use a traditional electromechanical sewage system, such as a sewage pump combined with a scraper device (or a mixing and mixing device, etc.), which discharges the bottom pollutants under set conditions through electrical control. This sewage system can ensure sewage discharge effects as long as it is set up reasonably. However, the construction and safe operation of the power supply system, and the need for professional maintenance and repair of electromechanical equipment are practical problems that are difficult to solve for the time-delay adjustment facilities usually used in rainwater source control.

[0004] The second type is an unpowered automatic sewage discharge system. When the supernatant in the delayed regulation facility is discharged through the slow-release device, the liquid level in the facility is reduced to the set height, and the unpowered automatic sewage discharge device automatically opens the sewage outlet at the bottom of the facility, and discharges the sediment and sewage at the bottom of the facility by gravity. After the sewage discharge is completed, the automatic sewage discharge device closes the sewage outlet at the bottom of the facility to complete a sewage discharge process. This sewage discharge system does not require additional power supply, and operates automatically using the gravity and buoyancy changes of water. It does not have complex electromechanical equipment and is particularly suitable for rainwater delayed regulation facilities that are dispersed at the source. However, due to the poor fluidity of the dirt deposited at the bottom of the facility, it is difficult to discharge the sediment in other locations except near the sewage outlet during gravity discharge, and the sewage discharge effect is not good. The sediment accumulated in the delayed regulation facility will seriously interfere with the long-term stable operation of the facility.

[0005] Therefore, there is an urgent need to provide a flushing device and a delayed adjustment facility sewage discharge system and method using the device to solve the defects and shortcomings in the above-mentioned prior art, achieve a good sewage discharge effect of the unpowered automatic sewage discharge system, and ensure the long-term stable operation of the delayed adjustment facility. Summary of the invention

[0006] In order to solve the defects and shortcomings in the prior art, the present invention provides a flushing device and a delayed regulating facility sewage discharge system and method using the device.

[0007] The specific scheme provided by the present invention is: The flushing device is characterized in that it includes a float, the lower part of the float is connected to a water storage shell through a valve body, a water storage cavity is formed inside the water storage shell, the float can drive the valve body to realize the connection and opening and closing of the upper part of the water storage cavity with the external atmospheric environment or water environment in a unidirectional conductive manner, and the lower part of the water storage cavity is provided with an opening connected to the external atmospheric environment or water environment.

[0008] As a further preferred embodiment of the present invention, the lower part of the float is fixedly connected to the valve core of the valve body through a connecting rod. The valve core can move up and down relative to the valve body under the drive of the float, thereby realizing the connection and opening and closing between the upper part of the water storage cavity and the external atmospheric environment or water environment in a unidirectional conductive manner.

[0009] As a further preferred embodiment of the present invention, a valve connector for accommodating a valve body is provided on the upper portion of the water storage housing.

[0010] As a further preferred embodiment of the present invention, the valve body is a one-way valve.

[0011] As a further preferred embodiment of the present invention, the valve body is a check valve.

[0012] As a further preferred embodiment of the present invention, a reset device is provided on the valve body.

[0013] As a further preferred embodiment of the present invention, When the float follows the liquid level to float up through buoyancy, the float drives the valve core to rise relative to the valve body to open the valve body. At this time, the valve body is in an open state, and the upper part of the water storage cavity is connected to the external liquid environment; When the buoyancy of the float disappears and the liquid level drops, the float drives the valve core to fall relative to the valve body to close the valve body. At this time, the valve body is in a closed state, and the upper part of the water storage cavity is sealed from the external atmospheric environment.

[0014] As a further preferred embodiment of the present invention, a support member is fixed to the lower part of the water storage shell, and the height and position of the support member can be adjusted as needed.

[0015] Furthermore, the present invention also provides a delayed regulating facility sewage discharge system, the system includes a water storage shell, a water storage cavity is formed inside the water storage shell, an automatic slow release device and an automatic sewage discharge device are arranged inside the water storage cavity, the slow release water outlet of the automatic slow release device is connected to an external rainwater pipe network, and the sewage discharge outlet of the automatic sewage discharge device is connected to an external sewage pipe network; it is characterized in that: the inside of the water storage cavity is provided with a flushing device as described in any one of claims 1-8.

[0016] Furthermore, the present invention also provides a sewage discharge method for a sewage discharge system of a time-delay regulation facility, characterized in that it comprises the following steps: S1: water flows into the water storage cavity from the outside of the water storage shell. When the liquid level inside the water storage cavity rises to a level higher than the opening position, water begins to flow into the water storage cavity. S2: As the external water body continuously enters the water storage cavity, the liquid level inside the water storage cavity gradually rises, so that the float provides sufficient buoyancy to drive the valve core to rise relative to the valve body. At this time, the valve body is in an open state, so that the water storage cavity is filled with water; S3: When the external water stops entering the water storage cavity, the water stored in the water storage cavity is slowly discharged through the slow-release outlet of the automatic slow-release device, and the liquid level in the water storage cavity gradually decreases; S4: The liquid level in the water storage chamber gradually decreases, causing the buoyancy of the float to disappear and driving the valve core to fall relative to the valve body. At this time, the valve body is in a closed state; as the liquid level inside the water storage chamber continues to decrease, the stored liquid level inside the water storage chamber is higher than the liquid level inside the water storage chamber.

[0017] S5: As the internal liquid level of the water storage chamber decreases, the sewage discharge outlet of the automatic sewage discharge device begins to discharge sewage at the bottom of the water storage chamber. When the liquid level of the water storage chamber decreases to the opening position, the water stored in the water storage chamber is quickly discharged from the opening, flushing the sediment at the bottom of the water storage chamber and flowing to the sewage discharge outlet together with the sewage; S6: All the stored water in the water storage cavity is quickly released to flush the sediment at the bottom of the water storage cavity and discharge it from the sewage outlet. The automatic sewage discharge device is automatically closed, and the sewage discharge work of the delayed adjustment facility sewage discharge system is completed.

[0018] Compared with the prior art, the present invention can achieve the following technical effects: 1) The present invention provides a flushing device and a sewage discharge system and method for a delayed regulating facility using the flushing device, which can store water in a water storage cavity during the water inflow process of the water storage cavity of the delayed regulating facility, and retain the water in the water storage cavity when the delayed regulating facility slowly releases water. When the automatic sewage discharge device of the delayed regulating facility runs to a preset low water level, the retained water is instantly and quickly released to flush the sediment attached to the bottom of the water storage cavity and discharge it together with the sewage, thereby improving the sewage discharge effect of the unpowered automatic sewage discharge system and ensuring the long-term stable operation of the delayed regulating facility.

[0019] 2) The present invention provides a flushing device and a sewage discharge system and method using a delayed adjustment facility using the device, which does not require power supply and can replace the sewage pump combined with a mud scraper device in the prior art to achieve sewage discharge through electrical control, thereby reducing maintenance costs, reducing safety hazards, and achieving efficient automatic flushing.

[0020] 3) The present invention provides a flushing device and a sewage discharge system and method for a delayed regulating facility using the device, which can set the liquid level height and flushing water volume during flushing according to actual needs. The device is simple, easy to install, and has a wide range of applications. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 It is a structural schematic diagram of the automatic flushing device.

[0022] Figure 2 It is a schematic diagram of the structure of the automatic flushing device when the valve body is closed.

[0023] Figure 3 This is a schematic diagram of the structure of the automatic flushing device when the valve body is opened.

[0024] Figure 4 It is the system structure diagram corresponding to step S1 of the sewage discharge method.

[0025] Figure 5 It is the system structure diagram corresponding to step S2 of the sewage discharge method.

[0026] Figure 6 It is the system structure diagram corresponding to step S3 of the sewage discharge method.

[0027] Figure 7 It is the system structure diagram corresponding to step S4 of the sewage discharge method.

[0028] Figure 8 It is the system structure diagram corresponding to step S5 of the sewage discharge method.

[0029] Fig. 9 This is the system structure diagram corresponding to step S6 of the sewage discharge method. DETAILED DESCRIPTION

[0030] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0031] In the description of the present invention, it should be noted that the terms "upper", "lower", "inner", "outer", "front end", "rear end", "two ends", "one end", "the other end" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the present invention. In addition, the terms "first" and "second" are used for descriptive purposes only and cannot be understood as indicating or implying relative importance.

[0032] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "provided with", "connected", etc. should be understood in a broad sense. For example, "connected" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0033] [First embodiment] like Figure 1-3 The figure shows a flushing device provided by the first embodiment of the present invention, as shown in FIG. Figure 1 As shown, it includes a float 11, the lower part of the float 11 is connected to the water storage shell 13 through a valve body 12, and a water storage cavity 132 is formed inside the water storage shell 13. The float 11 can drive the valve body 12 to realize the connection and opening and closing of the upper part of the water storage cavity 132 with the external atmospheric environment or water environment in a unidirectional conductive manner, and the lower part of the water storage cavity 132 is provided with an opening 133 that is connected to the external atmospheric environment or water environment.

[0034] By means of a valve body 12 arranged at the lower part of the float, the upper part of the water storage chamber 132 is connected or closed with the external atmosphere or water environment in a unidirectional conduction manner, so that water can be stored in the water storage chamber 132 during the water intake of the delayed regulating facility, and the water in the water storage chamber can be retained when the delayed regulating facility slowly releases water. When the automatic sewage discharge operation reaches the lower opening 133 of the water storage chamber, the stored water is instantly released to flush and discharge the sediment attached to the bottom of the water storage chamber, thereby improving the sewage discharge effect of the unpowered automatic sewage discharge system and ensuring the long-term stable operation of the delayed regulating facility.

[0035] like Figure 1As shown, the float 11 in this embodiment can be set to a square, round or other shapes according to actual needs, and the volume of the float 11 can also be set accordingly according to actual needs. A support member 134 is fixed to the lower part of the water storage shell 13 so that the water storage shell 13 can be stably supported in a position such as inside the water storage cavity, and the height, position and shape of the support member can be adjusted accordingly according to actual needs.

[0036] In this embodiment, the lower part of the float 11 is fixedly connected to the valve core 121 of the valve body 12 by a connecting rod 111. The valve core 121 can move up and down relative to the valve body 12 under the drive of the float 11, so as to realize the connection and opening and closing between the upper part of the water storage cavity 132 and the external atmospheric environment or water environment in a unidirectional conductive manner, so as to drive the valve body 12 to realize the corresponding opening and closing action through the lifting and lowering of the float 11; a valve connector 131 for sealing and accommodating the valve body 12 is provided on the upper part of the water storage shell 13, thereby providing an accommodating space for the valve body 12 while the valve body 12 realizes the corresponding action.

[0037] The valve body 12 in this embodiment can be selected according to actual needs, for example, a common one-way valve in the mechanical field can be selected, or a check valve can be further selected on this basis, such as a common swing check valve or a lifting check valve. In order to help achieve automatic resetting of the valve body after opening, a resetting device, such as an elastic resetting device or a gravity resetting device, can be further provided on the valve body 12 to help achieve the effect of one-way conduction and resetting closure; thereby helping to achieve: when the float 11 floats up with the liquid level through buoyancy, the float 11 drives the valve core 121 to rise relative to the valve body 12 to open the valve body 12, at which time the valve body 12 is in an open state, and the upper part of the water storage cavity 132 is connected to the external atmosphere or water environment; when the buoyancy of the float 11 disappears and follows the drop of the liquid level, the float 11 drives the valve core 121 to drop relative to the valve body 12 to close the valve body 12, at which time the valve body 12 is in a closed state, and the upper part of the water storage cavity 132 is closed and not connected to the external atmosphere or water environment.

[0038] As one of the preferred implementations of this embodiment, like Figure 3 As shown, in this embodiment, when the float 11 is in the liquid and rises due to the buoyancy, it drives the valve core 121 to move upward relative to the valve body 12, ensuring that the valve body 12 opens the flow passage, thereby achieving communication between the upper part of the water storage cavity 132 and the external liquid environment, and the interior of the water storage cavity 132 can be completely filled with liquid; like Figure 2As shown, in this embodiment, when the float 11 is not in the liquid and drops due to the disappearance of buoyancy, it will drive the valve core 121 to move downward relative to the valve body 12, ensuring that the valve body 12 closes the flow channel, thereby realizing the closure of the upper part of the water storage cavity 132 from the external atmospheric environment. When the external liquid level is higher than the position of the opening 133, the water storage cavity 132 can maintain a certain amount of liquid. When the external liquid level is lower than the position of the opening 133, the liquid inside the water storage cavity 132 is quickly discharged to achieve a flushing effect.

[0039] [Second embodiment] like Figure 5 As shown, the second embodiment of the present invention also provides a delayed regulating facility sewage discharge system, the system includes a water storage shell 2, and a green plant area can be arranged on one side of the upper part of the water storage shell 2. The green plant area can fully utilize the falling rainwater and can also achieve a buffering effect on the falling rainwater; a water storage cavity 21 is formed inside the water storage shell 2, and an automatic slow-release device 3 and an automatic sewage discharge device 4 are arranged inside the water storage cavity 21. The slow-release outlet of the automatic slow-release device 3 is connected to the external rainwater pipe network, and the sewage discharge outlet of the automatic sewage discharge device 4 is connected to the external sewage pipe network. The automatic slow-release device is used to achieve the purpose of buffering the water storage. The slow-release discharge of the water inside the cavity 21 is achieved by the automatic sewage discharge device to discharge the sewage inside the water storage cavity 21. Preferably, the automatic slow-release device in this embodiment can select a non-powered slow-release device mentioned in the patent application with the announcement number CN110306641B, and the automatic sewage discharge device in this embodiment can select a non-powered sewage discharge device mentioned in the patent application with the announcement number CN110306641B. The automatic slow-release device and the automatic sewage discharge device can be set accordingly according to the required flushing cycle, which has a wide range of applications and is conducive to promotion. The flushing device 1 mentioned in the first embodiment is arranged inside the water storage cavity 21. By setting the flushing device 1, after the automatic slow-release device performs slow-release drainage and the automatic sewage discharge device performs automatic sewage discharge, the sewage and sediment attached to the bottom of the inner side of the water storage cavity are flushed and discharged through the automatic flushing device, further improving the flushing and sewage discharge effects and improving the cleanliness of the inner side of the water storage cavity.

[0040] [Third embodiment] like Figure 4-9 As shown, the third embodiment of the present invention further provides a sewage discharge method of the sewage discharge system of the delayed regulation facility mentioned in the second embodiment, comprising the following steps: S1: Water flows from the outside of the water storage housing 2 into the water storage cavity 21. When the liquid level in the water storage cavity 21 rises to a level higher than the opening 133, water begins to flow into the water storage cavity 132. At this time, the system structure is as follows: Figure 4 As shown; S2: As the external water body continuously enters the water storage cavity 21, the liquid level inside the water storage cavity 21 gradually rises, so that the float 11 provides sufficient buoyancy to drive the valve core 121 to rise relative to the valve body 12. At this time, the valve body 12 is in an open state, so that the water storage cavity 132 is filled with water; S3: When the external water stops entering the water storage cavity 21, the water stored in the water storage cavity 21 is slowly discharged through the slow-release outlet of the automatic slow-release device 3, and the liquid level in the water storage cavity 21 gradually decreases; S4: The liquid level in the water storage chamber 21 gradually decreases, causing the buoyancy of the float 11 to disappear, driving the valve core 121 to fall relative to the valve body 12. At this time, the valve body 12 is in a closed state; as the liquid level inside the water storage chamber 21 continues to decrease, the stored liquid level in the water storage chamber 132 is higher than the liquid level inside the water storage chamber 21.

[0041] S5: As the liquid level inside the water storage chamber 21 decreases, the sewage discharge outlet of the automatic sewage discharge device 4 starts to discharge sewage at the bottom of the water storage chamber 21. When the liquid level in the water storage chamber 21 decreases to the position of the opening 133, the water stored in the water storage chamber 132 is quickly discharged from the opening 133, flushing the sediment at the bottom of the water storage chamber 21 and flowing to the sewage discharge outlet together with the sewage. S6: All the stored water in the water storage cavity 132 is quickly released to flush the sediment at the bottom of the water storage cavity 21 and discharge it from the sewage outlet. The automatic sewage discharge device 4 is automatically closed, and the sewage discharge work of the delayed adjustment facility sewage discharge system is completed.

[0042] It will be apparent to those skilled in the art that the invention is not limited to the details of the exemplary embodiments described above and that the invention can be implemented in other specific forms without departing from the spirit or essential features of the invention. Therefore, the embodiments should be considered exemplary and non-limiting in all respects, and the scope of the invention is defined by the appended claims rather than the foregoing description, and it is intended that all variations falling within the meaning and scope of the equivalent elements of the claims be included in the invention. Any reference numeral in a claim should not be considered as limiting the claim to which it relates.

Claims

1. Flushing device, characterized in that: The invention comprises a float (11), the lower part of which is connected to a water storage shell (13) via a valve body (12), a water storage cavity (132) is formed inside the water storage shell (13), the float (11) can drive the valve body (12) to realize the opening and closing of the upper part of the water storage cavity (132) and the external atmospheric environment or water environment in a unidirectional conduction manner, and the lower part of the water storage cavity (132) is provided with an opening (133) which is connected to the external atmospheric environment or water environment.

2. The flushing device according to claim 1, characterized in that: The lower portion of the float (11) is fixedly connected to the valve core (121) of the valve body (12) via a connecting rod (111); the valve core (121) can move up and down relative to the valve body (12) under the drive of the float (11), thereby realizing the opening and closing of the connection between the upper portion of the water storage cavity (132) and the external atmospheric environment or water environment in a unidirectional conduction manner.

3. The flushing device according to claim 1, characterized in that: The upper portion of the water storage housing (13) is provided with a valve connecting piece (131) for accommodating the valve body (12).

4. The flushing device according to claim 1, characterized in that: The valve body (12) is a one-way valve.

5. The flushing device according to claim 4, characterized in that: The valve body (12) is a check valve.

6. The flushing device according to claim 5, characterized in that: The valve body (12) is provided with a reset device.

7. The flushing device according to claim 6, characterized in that: When the float (11) rises with the liquid level due to buoyancy, the float (11) drives the valve core (121) to rise relative to the valve body (12) to open the valve body (12). At this time, the valve body (12) is in an open state, and the upper part of the water storage cavity (132) is connected to the external liquid environment. When the buoyancy of the float (11) disappears and the liquid level drops, the float (11) drives the valve core (121) to drop relative to the valve body (12) to close the valve body (12). At this time, the valve body (12) is in a closed state, and the upper part of the water storage cavity (132) is sealed from the external atmospheric environment.

8. The flushing device according to claim 1, characterized in that: A support member (134) is fixed to the lower part of the water storage housing (13), and the height and position of the support member can be adjusted as required.

9. A sewage discharge system for a delayed regulation facility, the system comprising a water storage shell (2), a water storage cavity (21) formed inside the water storage shell (2), an automatic slow-release device (3) and an automatic sewage discharge device (4) arranged inside the water storage cavity (21), the slow-release water outlet of the automatic slow-release device (3) being connected to an external rainwater pipe network, and the sewage discharge outlet of the automatic sewage discharge device (4) being connected to an external sewage pipe network; characterized in that: The water storage cavity (21) is provided with a flushing device as claimed in any one of claims 1 to 8.

10. A method for discharging sewage from a sewage discharge system of a time-delay regulation facility as claimed in claim 9, characterized in that: The following steps are involved: S1: water flows from the outside of the water storage housing (2) into the water storage cavity (21), and when the liquid level inside the water storage cavity (21) rises to a level higher than the position of the opening (133), water begins to flow into the water storage cavity (132); S2: As external water continues to enter the water storage cavity (21), the liquid level inside the water storage cavity (21) gradually rises, so that the float (11) provides sufficient buoyancy to drive the valve core (121) to rise relative to the valve body (12). At this time, the valve body (12) is in an open state, so that the water storage cavity (132) is filled with water; S3: When the external water stops entering the water storage cavity (21), the water stored in the water storage cavity (21) is slowly discharged through the slow-release outlet of the automatic slow-release device (3), and the liquid level in the water storage cavity (21) gradually decreases; S4: the liquid level in the water storage chamber (21) gradually decreases, causing the buoyancy of the float (11) to disappear, driving the valve core (121) to fall relative to the valve body (12), and at this time the valve body (12) is in a closed state; as the liquid level inside the water storage chamber (21) continues to decrease, the liquid level inside the water storage chamber (132) becomes higher than the liquid level inside the water storage chamber (21); S5: As the liquid level inside the water storage chamber (21) decreases, the sewage discharge outlet of the automatic sewage discharge device (4) begins to discharge sewage at the bottom of the water storage chamber (21); when the liquid level in the water storage chamber (21) decreases to the position of the opening (133), the water stored inside the water storage chamber (132) is quickly discharged from the opening (133), flushing the sediment at the bottom of the water storage chamber (21) and flowing to the sewage discharge outlet together with the sewage; S6: All the water stored in the water storage chamber (132) is quickly released to flush the sediment at the bottom of the water storage chamber (21) and discharge it from the sewage outlet. The automatic sewage discharge device (4) is automatically closed, and the sewage discharge work of the delayed regulating facility sewage discharge system is completed.

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