WO2020077843A1

WO2020077843A1 - Piston-type initial rainwater abandonment device and use method thereof

Info

Publication number: WO2020077843A1
Application number: PCT/CN2018/123660
Authority: WO
Inventors: 张升堂; 王之凯; 刘颖; 李贵宝
Original assignee: 山东科技大学
Priority date: 2018-10-17
Filing date: 2018-12-25
Publication date: 2020-04-23
Also published as: CN109356222B; CN109356222A

Abstract

The present invention relates to the technical field of initial rainwater abandonment, and disclosed thereby are a piston-type initial rainwater abandonment device and a use method therefor. Defects such as high use cost, difficult later-period maintenance and poor applicability of initial rainwater abandonment devices in the prior art are overcome. The technical solution comprises: a water inlet device, a flow distributing device, a water storage device, an abandonment discharging device and a rainwater outlet device; the water inlet device is located at the upper portion of the water storage device and penetrates the top of the water storage device; the flow distributing device is located in the water storage device, and the top of the flow distributing device is connected to the bottom of the water inlet device; the abandonment discharging device is connected to the lower portion of the water storage device; the rainwater outlet device is located at the upper portion of the water storage device, and one end of the rainwater outlet device is connected to the middle of the water inlet device. The present initial rainwater abandonment device is an important pretreatment facility of a rainwater collecting facility, and may abandon initial rainfall runoff having an initial scouring effect and high pollutant concentration, thereby improving the purity of collected rainwater and making the use of rainwater convenient.

Description

Piston-type initial rainwater abandoner and its use method

Technical field

[0001] The present invention relates to the technical field of initial rainwater abandonment, in particular to a piston-type initial rainwater aerator and its use method.

Background technique

[0002] Initial rainwater, as the name implies, is the rainwater at the beginning of the rain. Generally, it refers to precipitation with surface runoff of 10-15 mm thick on the ground. In the early days of rain, the rainwater dissolves or carries a large amount of pollutant gases such as acidic gas, automobile exhaust, and factory exhaust gas. After landing on the ground, the initial rainwater contains a large amount of pollutants due to the scouring of roofs and asphalt concrete roads. The initial rainwater is highly polluted, even exceeding the pollution level of ordinary urban sewage. When collecting rainwater, if this part of rainwater is not discarded, it will cause pollution of clean non-primary rainwater collected later, resulting in the collected rainwater It becomes unclean, making it difficult to collect and use rainwater.

[0003] In order to solve the above problem, the initial rain spout gradually entered people's vision. The initial rainwater abandoner refers to a device that discards the initial rainfall runoff that has an initial flushing effect and a high pollutant concentration through a certain method or device. This device can make all the rainwater collected by the subsequent rainwater collection system. Clean rainwater, even if untreated, it can meet most people's daily water needs.

[0004] See that there are two main types of research on the initial rainwater spout in the technology:

[0005] A type of rainwater spoiler realizes the initial rainwater abandonment through flowmeters, electric valves, floats and other components, but requires an external power supply and ancillary equipment. The general manufacturing process of this type of rainwater aerator is relatively complicated and the manufacturing cost Higher, consumes more energy, and the components are easily damaged and difficult to maintain, which is not suitable for widespread use; another type of rain spoiler relies on the impact of rain to open or close the spout to make the initial rainwater flow into the abandoned In order to achieve the initial rainwater abandonment, this type of rainwater abandoner needs a large amount of rainwater flow to generate the power to close the abandonment outlet and open the rainwater collection pipe valve, so it depends heavily on the rain potential. Light rain for a long time may not work, so the use of this type of rain spoiler has limitations and cannot be widely used.

Summary of the invention technical problem

Solution to the problem

Technical solution

[0006] The purpose of the present invention is to address the high degree of initial rainwater pollution and the difficulty of collecting and using rainwater after mixing with later rainwater, and the high cost of using the existing initial rainwater abandonment device, difficulty in later maintenance, and poor applicability Strong current situation, to provide a piston-type initial rain spout and its use method.

[0007] To achieve the above objective, the present invention adopts the following technical solutions:

[0008] A piston-type initial rainwater abandoner includes a water inlet device, a water storage device, a waste water discharge device, a rainwater outflow device, the water storage device is a rectangular parallelepiped structure water storage tank, the inlet The water device includes a water inlet pipe, the water inlet pipe is located at the top of the water storage tank, and the bottom of the water inlet tank extends into the water storage tank, used to transport rainwater formed by rainfall to the water storage tank, and further includes a diverting device The diversion device is located inside the water storage tank, the diversion device includes a leaking cage and a piston located in the leaking cage, and small holes are provided on the sidewalls and bottom of the leaking cage, the small The hole has the function of a communicator, so that the water level of the leaking cage is raised together with the water level of the water storage tank; the shape and size of the upper part of the piston coincide with the shape and size of the upper part inside the leaking cage;

[0009] The bottom of the water inlet pipe is connected to the top of the leakage cage;

[0010] The top of the water storage tank is also provided with a vent hole that balances the internal and external air pressure when the water storage tank is filled with water;

[0011] The abandonment discharge device is flush with the bottom surface of the water storage tank, and is used to discharge contaminated impurities in the initial rainwater;

[0012] The rainwater outflow device includes a first outflow pipe, a second outflow pipe and a third outflow pipe, the first outflow pipe and the third outflow pipe are parallel to the water storage tank, the first Two outflow pipes are located between the first outflow pipe and the third outflow pipe, the second outflow pipe is an upwardly convex bent pipe, and the first outflow pipe is connected in the water storage tank On the inlet pipe;

[0013] With the continuous delivery of rainwater in the water inlet pipe, when the rainwater reaches a certain height in the storage tank, when the piston rises to the top of the leaking cage with the water level, the upper part of the piston coincides with the upper part of the inner part of the leaking cage, and the piston is completely The top of the leakage cage is blocked, and the rainwater is discharged through the rainwater outflow device.

[0014] As a preferred solution of the present invention, the inside of the drain cage is hollow, divided into upper and lower parts, the upper part is round truncated, the lower part is cylindrical, the small hole is provided in the side wall of the lower part of the drain cage and On the bottom; The piston is also divided into upper and lower parts, the upper part is circular truncated, the lower part is cylindrical.

[0015] As another preferred solution of the present invention, the piston is selected to have a certain buoyancy and water-proof material.

[0016] Preferably, the leakage cage is at a distance from the bottom of the water storage tank.

[0017] Preferably, the first outlet pipe is connected to the water inlet pipe located near the upper part in the water storage tank.

[0018] Another task of the present invention is to provide a method of using a piston-type initial rain spout, which in turn includes the following steps:

[0019] a preliminary rainwater enters the water storage tank through the water inlet pipe. During the rainwater entering process, due to the obstruction of the bent pipe in the rainwater outflow device, the initial rainwater can only flow into the leaking cage through the water inlet pipe to balance the air pressure in the vent hole Under the effect of, the initial rainwater entering the leaking cage will flow into the water storage tank through the small hole, so that the water level in the water storage tank will gradually rise;

[0020] b. When the water level in the water storage tank does not exceed the bottom of the leakage cage, the buoyancy causes the piston to rise with the rise of the water level. When the piston rises to the top of the leakage cage, the initial rainwater collection is completed;

[0021] c. At this time, the piston blocks the leakage cage under the action of buoyancy, and the non-initial rainwater in the inlet pipe no longer flows into the leakage cage and the storage tank, but passes through the first outlet pipe, the second outlet pipe and The third outlet pipe is discharged.

Beneficial effects of invention

Beneficial effect

[0022] The beneficial technical effects brought by the present invention are:

[0023] On the one hand, the present invention, as an important pretreatment facility for rainwater collection facilities, can separate the initial rainwater from the non-initial rainwater to achieve a true rainwater flow, so that the initial rainwater is discarded, and only the clean non-initial The rainwater enters the rainwater collection system, which improves the purity of the collected rainwater and brings great convenience to the use of rainwater; on the other hand, compared with the prior art, the present invention does not have a more complicated and relatively expensive application. Technology, but fully utilizes the physical characteristics of rainwater such as gravity and buoyancy. Not only is the diversion and purification effect very good, but also the manufacturing process is simple, the cost is low, the materials are easy to obtain, the later maintenance is easier, and it is suitable for widespread use.

Brief description of the drawings

BRIEF DESCRIPTION

[0024] The present invention will be further described below in conjunction with the accompanying drawings:

[0025] FIG. 1 is a cross-sectional view of the rainwater spout of the present invention; [0026] FIG. 2 is a detailed view of the structure of the diverter device of the present invention;

[0027] FIG. 3 is a schematic view of the working state of the rainwater spoiler of the present invention;

[0028] FIG. 4 is a top view of the rainwater spout of the present invention;

[0029] In the figure, 1. Discharge discharge pipe, 2. Water storage tank, 3. Small hole, 4. Ventilation hole, 5. Inlet pipe, 6. Elbow (second outlet pipe), 7. Third outlet Flow tube, 8. Piston, 9. Leakage cage.

Invention Example

Embodiments of the invention

[0030] The present invention proposes a piston-type initial rainwater spout and its use method. In order to make the advantages and technical solutions of the present invention more clear and unambiguous, the following describes the present invention in detail with reference to specific embodiments.

[0031] Referring to FIGS. 1 to 4, a piston-type initial rainwater spoiler of the present invention is composed of five parts, which are a water inlet device, a diverting device, a water storage device, a spout discharge device, and a rainwater outflow device. Among them, the main part of the water inlet device is the water inlet pipe 5, the main part of the water storage device is a rectangular water storage tank 2, the main function of the water storage tank is to collect the initial rainwater, the water inlet pipe extends from the top of the water storage tank, and extends into There is a distance in the water storage tank. When it rains, the initial rainwater enters the water storage tank through the inlet pipe.

[0032] The diversion device is located inside the water storage tank 2, and its top is connected to the bottom of the water inlet pipe 5. The initial rainwater entering from the water inlet pipe first flows through the diversion device, and then enters the water storage tank. As one of the main improvements of the present invention, the structure of the diverter device is shown in FIG. 2, which includes the leak cage 9 and its internal piston 8. The leak cage is hollow inside, the upper part is in the shape of a circular table, the lower part is in the shape of a cylinder, and the lower part There are small holes 3 in both the side wall and the bottom. The small hole of the leak cage has the function of a connector, so that the water level of the leak cage is raised together with the water level of the water storage tank. The upper part of the piston 8 is circular truncated body, the lower part is cylindrical, and the inner upper part of the leak cage is round truncated body, and the lower part of the inner part The shape of the cylinder is the same as the shape and size of the upper part of the piston and the upper part of the inside of the leak cage, that is, when the piston rises to the top of the leak cage with the water level, the upper part of the piston can completely fit the upper part of the inside of the leak cage. The piston is made of buoyant and water-proof material. When the piston rises to the top of the leak cage, the piston can block the top of the leak cage, so that rainwater no longer circulates here.

[0033] The main component of the abandonment discharge device is a abandonment discharge pipe 1, the abandonment discharge pipe and the bottom of the water tank are parallel to each other, such a design can enable the initial rainwater containing pollutants to be completely discharged.

[0034] A vent hole 4 is provided on the top of the water storage tank 2, which can balance the internal and external air pressure when the water storage tank is filled with water. The rainwater outflow device includes a first outflow pipe, a second outflow pipe and a third outflow pipe 7, the first outflow pipe and the third outflow pipe The flow tube is parallel to the water storage tank, the second outflow tube is located between the first outflow tube and the third outflow tube, the second outflow tube is an upwardly convex bent tube 6, the first outflow tube is connected to On the water inlet pipe in the water storage tank;

[0035] With the continuous delivery of rainwater in the inlet pipe, when the rainwater reaches a certain height in the storage tank, when the piston rises to the top of the leaking cage with the water level, the upper part of the piston coincides with the upper part of the inner part of the leaking cage, and the piston is completely blocked At the top of the leak cage, rainwater is discharged through the rainwater outflow device.

[0036] There is a certain distance between the bottom of the leaking cage and the bottom of the water storage tank, rather than contacting each other. On the one hand, it saves materials and costs; on the other hand, it prevents the sediment in the initial rainwater from being completely discharged through the spout discharge device due to the presence of the leakage cage.

[0037] The use method of the above device is:

[0038] When rain occurs, the initial rain water first enters the drain cage 9 through the water inlet pipe 5, during this process, there may be a small amount of initial rain water flowing into or splashing into the rainwater outflow device, the rainwater outflow device protruding upward The presence of the elbow 6 will prevent the initial rainwater from flowing out of the rainwater outflow pipe, and make the rainwater flow back into the water inlet pipe 5, and enter the leak cage 9 together with the initial rainwater in the water inlet pipe 5, under the effect of the balanced air pressure in the vent hole 4, enter The rainwater of the leaking cage 9 will flow into the water storage tank 2 through the small hole 3 on it, so that the water level of the water storage tank 2 is gradually raised. When the water level does not exceed the bottom of the leaking cage 9, the buoyancy forces the piston 8 to rise as the water level rises. When the piston 8 rises to the top of the drain cage 9, the initial rainwater collection is completed, the piston 8 will block the drain cage 9 under the action of buoyancy, and the non-initial rainwater in the inlet pipe 5 no longer flows down into the drain cage 9 and the storage tank 2. Instead, it flows into the non-primary rainwater collection and purification system through the first outlet pipe, the second outlet pipe 6 and the third outlet pipe 7 successively. When the rain stops and no more rainwater flows into the water inlet pipe 5, the initial rainwater collected in the water storage tank 2 can be discharged through the abandonment discharge pipe 1 below it.

[0039] It should be further noted that the specific embodiments described herein are merely illustrative examples of the present invention. Those skilled in the art to which the present invention pertains can make various modifications or additions to the described specific embodiments or substitute in a similar manner, but it will not go beyond the scope defined by the claims.

Claims

[Claim i] A piston-type initial rainwater abandonment device, which includes a water inlet device, a water storage device, an abandonment flow discharge device, a rainwater outflow device, the water storage device is a rectangular parallelepiped structured water storage tank, The water inlet device includes a water inlet pipe, the water inlet pipe is located at the top of the water storage tank, and the bottom of the water inlet tank extends into the water storage tank, and is used to transport rainwater formed by rainfall to the water storage tank. Lies in:

It also includes a shunting device, which is located inside the water storage tank, the shunting device includes a leaking cage and a piston located in the leaking cage, and small holes are provided on the side walls and bottom of the leaking cage, The small hole has a function of a connector, so that the water level of the leaking cage is raised together with the water level of the water storage tank; the shape and size of the upper part of the piston coincide with the shape and size of the upper part of the inside of the leaking cage;

The bottom of the water inlet pipe is connected to the top of the leakage cage;

The top of the water storage tank is also provided with a vent hole for balancing the internal and external air pressure when the water storage tank is filled with water;

The abandonment discharge device is flush with the bottom surface of the water storage tank, and is used to discharge contaminated impurities in the initial rainwater;

The rainwater outflow device includes a first outflow pipe, a second outflow pipe, and a third outflow pipe, the first outflow pipe and the third outflow pipe are parallel to the water storage tank, and the second outflow The pipe is located between the first outlet pipe and the third outlet pipe, the second outlet pipe is an upwardly convex bent pipe, and the first outlet pipe is connected to the inlet pipe located in the water storage tank On

With the continuous delivery of rainwater in the water inlet pipe, when the rainwater reaches a certain height in the storage tank, when the piston rises to the top of the leak cage with the water level, the upper part of the piston coincides with the upper part of the inner part of the leak cage, and the piston is completely blocked At the top of the cage, rainwater is discharged through the rainwater outflow device.

[Claim 2] The piston-type initial rainwater spout according to claim 1, characterized in that: the inside of the leaking cage is hollowed, divided into upper and lower parts, the upper part is in the shape of a circular table, and the lower part is in a cylindrical shape The small hole is provided on the side wall and the bottom of the lower part of the leakage cage; the piston is also divided into an upper part and a lower part, and the upper part is circular truncated and the lower part is cylindrical.

[Claim 3] A piston-type initial rainwater spout according to claim 2, characterized in that the piston is made of a material with a certain buoyancy and water barrier.

[Claim 4] A piston-type initial rainwater spout according to claim 1, characterized in that the leakage cage is at a distance from the bottom of the water storage tank.

[Claim 5] The piston-type initial rainwater spout according to claim 1, characterized in that the first outlet pipe is connected to an inlet pipe located near the upper part in the water storage tank.

[Claim 6] The method for using the piston-type initial rainwater spout according to any one of claims 1-5, characterized in that it includes the following steps in order:

aThe initial rainwater enters the storage tank through the water inlet pipe. During the rainwater entering process, due to the obstruction of the elbow in the rainwater outflow device, the initial rainwater can only flow into the leaking cage through the water inlet pipe under the effect of the air pressure balance in the vent The initial rainwater entering the leaking cage will flow into the water storage tank through the small hole, so that the water level in the water storage tank will gradually rise;

b. When the water level in the water storage tank does not exceed the bottom of the leaking cage, the buoyancy forces the piston to rise with the rise of the water level. When the piston rises to the top of the leaking cage, the initial rainwater collection is completed; c. The role of the piston in the buoyancy The leakage cage is blocked by the lower part, and the non-initial rainwater in the inlet pipe no longer flows into the leakage cage and the storage tank, but is discharged through the first outlet pipe, the second outlet pipe and the third outlet pipe successively.