Rain sewage valve automatic switching device

Abstract

The utility model discloses a rain sewage valve automatic switching device which comprises a concrete valve well, a control system, a polluted area rainwater pipeline, an initial polluted rainwater pipeline and a clean rainwater pipeline which are arranged in the concrete valve well and are communicated with one another, and a rainwater sensor and a timer which are electrically connected with the control system, the outer end of the polluted area rainwater pipeline is suitable for introducing discharged rainwater; a first electric valve is arranged on the initial polluted rainwater pipeline, a second electric valve is arranged on the clean rainwater pipeline, and the first electric valve and the second electric valve are both electrically connected with the control system; in sunny days, the initial state of the first electric valve is normally open, and the initial state of the second electric valve is normally closed. According to the automatic switching device, through the control system, the piezoelectric rain gauge and the time relay, the purpose of collecting polluted rainwater and clean rainwater in the initial stage of a rainy day according to quality is achieved, the automation degree is improved, and pollution to the water environment is avoided.

Description

Technical Field

[0001] The utility model belongs to the technical field of rainwater collection control, and in particular relates to an automatic switching device for rainwater and sewage valves. Background Art

[0002] In the chemical industry, rainwater produced within the first 15 to 30 minutes of rainfall in the polluted area is called initial polluted rainwater. Initial polluted rainwater often contains a small amount of chemical media produced by leakage, bubbling, dripping, and leaking of equipment and valves, and has a high degree of pollution, so it is not suitable for direct use. If it is directly discharged into the rainwater system, it will cause water environment pollution and threaten people's health. Therefore, measures need to be taken to collect the initial polluted rainwater into the sewage system.

[0003] At present, the method of collecting the initial polluted rainwater is to manually observe the rain and start the timer after the rain, and then manually operate the valve to collect the initial polluted rainwater into the sewage system. This method has a low degree of automation. Therefore, it is necessary to design an automatic switching device for rain and sewage valves. Utility Model Content

[0004] The utility model aims to provide an automatic switching device for rain and sewage valves, which can realize the automatic switching between initial rainwater and clean rainwater in polluted areas, ensure that initial polluted rainwater does not enter the clean rainwater system, and avoid water environment pollution.

[0005] In order to solve the above problems, the utility model provides an automatic switching device for rainwater and sewage valves, including a concrete valve well, a control system, a polluted area rainwater pipe, an initial polluted rainwater pipe and a clean rainwater pipe which are arranged in the concrete valve well and are interconnected, and a rainwater sensor and a timer electrically connected to the control system, wherein the outer end of the polluted area rainwater pipe is suitable for introducing discharged rainwater; a first electric valve is provided on the initial polluted rainwater pipe, and a second electric valve is provided on the clean rainwater pipe, and both the first electric valve and the second electric valve are electrically connected to the control system; the initial state of the first electric valve is normally open, and the initial state of the second electric valve is normally closed.

[0006] The utility model discloses an automatic switching device for rainwater and sewage valves. The outer end of the rainwater pipe in the polluted area is suitable for introducing rainwater discharged from the polluted area after rain. On sunny days, the first electric valve on the initial polluted rainwater pipe is in a normally open state, and the second electric valve on the clean rainwater pipe is in a normally closed state. When it rains, the rainwater sensor receives a signal and transmits it to the control system. The control system sends a timing signal to the timer, and the timer starts timing. At the same time, rainwater flows from the rainwater pipe in the polluted area into the initial polluted rainwater pipe, and then flows into the sewage pipe network system to wait for centralized treatment. When the timing time value reaches the preset time, it means that there are fewer pollutants in the rainwater thereafter, which can be regarded as Clean rainwater, at this time the timer is triggered to send a valve switching signal to the control system, which controls the first electric valve to close and the second electric valve to open through the control system, opening the channel of the clean rainwater pipe and closing the initial polluted rainwater pipe, so that the later rainwater flows into the clean rainwater pipe to be discharged into the clean rainwater pipe network system for subsequent use; when the rain stops, the rainwater sensor sends a stop rain signal to the control system, and the control system controls the first electric valve to open and the second electric valve to close to restore the initial state, thereby achieving the purpose of separate collection of initial polluted rainwater and clean rainwater on rainy days, improving the degree of automation and avoiding pollution of the water environment.

[0007] In some embodiments, both the initial polluted rainwater pipe and the clean rainwater pipe are arranged horizontally and placed in the middle of the concrete valve well in the vertical direction, thereby facilitating the smooth discharge of rainwater from the polluted area rainwater pipe into the sewage pipe network system or the clean rainwater pipe network system.

[0008] In some embodiments, the automatic switching device for rain and sewage valves further includes an electric actuator of a first electric valve and an electric actuator of a second electric valve, and the first electric valve and the second electric valve are both arranged in a concrete valve well. Thus, it is convenient to inspect the electric valve actuators of the first electric valve and the second electric valve through the concrete valve well.

[0009] In some embodiments, a cover plate is provided on the top of the concrete valve well, and the electric actuators of the first electric valve and the second electric valve are extended through the cover plate. Thus, by providing the cover plate on the concrete valve well, impurities such as dust and rainwater are prevented from falling into the well to affect the normal operation of the first electric valve and the second electric valve, thereby increasing the service life.

[0010] In some embodiments, the rain sensor uses a piezoelectric rain gauge, which is mounted on the cover plate. Therefore, when raindrops fall on the piezoelectric rain gauge, stress is generated due to the impact, which in turn causes the piezoelectric material to deform. When the piezoelectric material is deformed by force, an electrical signal proportional to the applied force is generated and transmitted to the control system, so as to control the timer to start timing and improve the timing accuracy.

[0011] In some embodiments, a column frame for supporting the initial polluted rainwater pipe and the clean rainwater pipe is provided in the concrete valve well, thereby improving the stability of the pipe.

[0012] In some embodiments, the timer is implemented as a time relay and is built into the control system.

[0013] In some embodiments, a ladder is provided on one side wall of the concrete valve well, so that maintenance personnel can enter the concrete valve well to detect the leakage of the polluted rainwater pipe, the initial polluted rainwater pipe and the clean rainwater pipe. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a plan view of an automatic switching device for rain and sewage valves according to one embodiment of the utility model;

[0015] Figure 2 for Figure 1 Cross-sectional view at AA in the middle.

[0016] In the figure:

[0017] 1. Concrete valve well; 11. Cover plate; 12. Column frame; 13. Ladder; 2. Control system; 3. Rainwater pipe in polluted area; 4. Rainwater pipe in initial pollution area; 41. First electric valve; 42. Actuator of first electric valve; 5. Clean rainwater pipe; 51. Second electric valve; 52. Actuator of second electric valve; 6. Rainwater sensor. DETAILED DESCRIPTION

[0018] The utility model is further described in detail below in conjunction with the accompanying drawings.

[0019] In the description of the present utility model, it should be understood that the terms "upper", "lower", "front", "rear", "vertical", "horizontal", "top", "bottom", "inside", "outside" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying 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 utility model. In addition, the terms "first", "second", etc. are used for descriptive purposes only, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. The terms "include", "comprise", "have" and their variations all mean "including but not limited to", unless otherwise specifically emphasized.

[0020] Figure 1 The following schematically shows an automatic switching device for rain and sewage valves according to an embodiment of the present utility model. Figure 1As shown, the automatic switching device for rainwater and sewage valves includes a concrete valve well 1, a control system 2, a polluted area rainwater pipe 3, an initial polluted rainwater pipe 4 and a clean rainwater pipe 5 which are arranged in the concrete valve well 1 and are interconnected, and a rainwater sensor 6 and a timer electrically connected to the control system 2. The outer end of the polluted area rainwater pipe 3 is suitable for passing the discharged rainwater; the initial polluted rainwater pipe 4 is provided with a first electric valve 41, and the clean rainwater pipe 5 is provided with a second electric valve 51, and the first electric valve 41 and the second electric valve 51 are both electrically connected to the control system 2; on sunny days, the initial state of the first electric valve 41 is normally open, and the initial state of the second electric valve 51 is normally closed.

[0021] The outer end of the polluted area rainwater pipe 3 is connected to the rainwater discharged from the polluted area after rain. On sunny days, the first electric valve 41 on the initial polluted rainwater pipe 4 is in a normally open state, and the second electric valve 51 on the clean rainwater pipe 5 is in a normally closed state; when it rains, the rainwater sensor 6 receives the signal and transmits it to the control system 2, and the control system 2 sends a timing signal to the timer, and the timer starts timing. At the same time, rainwater flows from the polluted area rainwater pipe 3 into the initial polluted rainwater pipe 4, and then flows into the sewage pipe network system, waiting for centralized treatment. The rainwater enters the initial polluted rainwater pipe 4 in the first 15 minutes. If it is still raining after 15 minutes, there are fewer pollutants in the rainwater at this time, which is regarded as clean rainwater. That is, when the timing time value reaches the preset 15 minutes, it means that there are fewer pollutants in the rainwater thereafter, which is regarded as clean rainwater. At this time, the timer is triggered to send a valve switching signal to the control system 2. The control system 2 controls the first electric valve 41 to be closed, and the second electric valve 51 to be opened, so as to open the channel of the clean rainwater pipe 5 and close the initial polluted rainwater pipe 4, so that the later rainwater flows into the clean rainwater pipe 5 to be discharged into the clean rainwater pipe network system for subsequent use; when the rain stops, the rainwater sensor 6 sends a rain stop signal to the control system 2, and the control system 2 controls the first electric valve 41 to be opened and the second electric valve 51 to be closed to restore the initial state, thereby achieving the purpose of separate collection of initial polluted rainwater and clean rainwater on rainy days, improving the degree of automation and avoiding pollution of the water environment.

[0022] In this embodiment, the initial polluted rainwater pipe 4 and the clean rainwater pipe 5 are both arranged horizontally and placed in the middle of the concrete valve well 1 in the vertical direction. This facilitates the smooth discharge of rainwater from the polluted area rainwater pipe 3 into the initial polluted rainwater pipe 4 or the clean rainwater pipe 5, and then into the sewage pipe network system or the clean rainwater pipe network system.

[0023] Furthermore, if Figure 2As shown, the automatic switching device for rain and sewage valves also includes an electric actuator 42 of the first electric valve and an electric actuator 52 of the second electric valve. Thus, by operating the valves on the ground, it is convenient to observe and overhaul the actuators of the first electric valve and the second electric valve on a daily basis.

[0024] Furthermore, if Figure 2 As shown, the top cover of the concrete valve well 1 is provided with a cover plate 11, and the electric actuator 42 of the first electric valve and the electric actuator 52 of the second electric valve pass through the cover plate 11. Therefore, by providing the cover plate 11 on the concrete valve well 1, impurities such as dust and rainwater are prevented from falling into it, which affects the normal operation of the first electric valve 41 and the second electric valve 51, and the service life is improved.

[0025] In this embodiment, if Figure 2 As shown, the rain sensor 6 adopts a piezoelectric rain gauge, which is installed on the cover plate 11. Therefore, when raindrops fall on the piezoelectric rain gauge, stress is generated due to the impact, which in turn causes the piezoelectric material to deform. When the piezoelectric material is deformed by force, an electrical signal proportional to the applied force is generated and transmitted to the control system 2, so as to control the timer to start timing and improve the timing accuracy.

[0026] Furthermore, a column frame 12 for supporting the initial polluted rainwater pipe 4 and the clean rainwater pipe 5 is provided in the concrete valve well 1, thereby improving the stability of the pipe.

[0027] In this embodiment, the timer adopts a time relay and is built into the control system 2 to improve the integrity and stability of the system.

[0028] As a preferred embodiment, Figure 1 As shown, a ladder 13 from top to bottom is also provided on one side wall of the concrete valve well 1. Thus, it is convenient for maintenance personnel to enter the concrete valve well 1 to detect the leakage of the polluted rainwater pipe 3, the initial polluted rainwater pipe 4 and the clean rainwater pipe 5.

[0029] The utility model of the automatic switching device for rain and sewage valves realizes the purpose of separately collecting polluted rainwater and clean rainwater in the early stage of rainy days through the control system 2, the piezoelectric rain gauge and the time relay, improves the degree of automation and avoids the pollution of the water environment.

[0030] The above are only some embodiments of the present invention. For those skilled in the art, several modifications and improvements can be made without departing from the inventive concept of the present invention. Therefore, the present invention is not limited by the specific embodiments disclosed herein, and all embodiments falling within the scope of the claims of this application belong to the scope of protection of the present invention.

Claims

1. An automatic switching device for rain and sewage valves, characterized in that: It comprises a concrete valve well, a control system, a polluted area rainwater pipe, an initial polluted rainwater pipe and a clean rainwater pipe which are arranged in the concrete valve well and are interconnected, and a rainwater sensor and a timer which are electrically connected to the control system, wherein the outer end of the polluted area rainwater pipe is suitable for receiving the discharged rainwater; The initially contaminated rainwater pipe is provided with a first electric valve, and the clean rainwater pipe is provided with a second electric valve. Both the first electric valve and the second electric valve are electrically connected to the control system; the initial state of the first electric valve is normally open, and the initial state of the second electric valve is normally closed.

2. The automatic switching device for rain and sewage valves according to claim 1 is characterized in that: The initially polluted rainwater pipe and the clean rainwater pipe are both arranged horizontally and placed in the middle of the concrete valve well in the vertical direction.

3. The automatic switching device for rain and sewage valves according to claim 2 is characterized in that: It also includes an electric actuator of a first electric valve and an electric actuator of a second electric valve, wherein the first electric valve and the second electric valve are both arranged in the concrete valve well.

4. The automatic switching device for rain and sewage valves according to claim 3 is characterized in that: The top cover of the concrete valve well is provided with a cover plate, and the electric actuator of the first electric valve and the electric actuator of the second electric valve pass through the cover plate.

5. The automatic switching device for rain and sewage valves according to claim 4 is characterized in that: The rain sensor adopts a piezoelectric rain gauge, and the piezoelectric rain gauge is installed on the cover plate.

6. The automatic switching device for rain and sewage valves according to claim 2 is characterized in that: The concrete valve well is provided with a column frame for supporting the initial polluted rainwater pipe and the clean rainwater pipe.

7. The automatic switching device for rain and sewage valves according to any one of claims 1 to 6, characterized in that: The timer adopts a time relay and is built in the control system.

8. The automatic switching device for rain and sewage valves according to any one of claims 1 to 6, characterized in that: A ladder is also provided on one side wall of the concrete valve well from top to bottom.

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