CN104652579B - A kind of building pumping equipment - Google Patents

Abstract

A kind of building drainage facility, through the setting of rainwater collection box, sewage collection pipe, storage tank, main drainage pipe and control valve, it can separately treat domestic sewage and rainwater, and can treat initial rainwater, thereby reducing sewage The burden on the treatment plant, and avoid the impact of incipient rainwater.

Description

a building drainage system

technical field

The invention relates to a drainage facility, in particular to a building drainage facility.

Background technique

There are two types of drainage that buildings need to treat: domestic sewage and rainwater. At present, the combined sewage discharge system is the combined discharge of sewage and rainwater. Under normal circumstances, the sewage is directly transported to the sewage treatment plant through the discharge pipeline. However, under heavy rain conditions, due to the confluence of rainwater and sewage, the amount of discharged water increases significantly. The sewage treatment plant cannot fully treat it, so it can only discharge the mixed flow of large amounts of sewage and rainwater directly, causing pollution to the river environment.

The invention patent of 201010577081.3 proposes a rainwater-controlled sewage discharge device, in which sewage and rainwater share a main drainage pipe, and the pressure control valve is controlled by the water pressure of rainwater, so that rainwater and sewage can be discharged to the treatment plant through the main drainage pipe respectively , saving the cost of sewage treatment. But this invention also has the following problems: 1, the pollution degree of rainwater and domestic sewage is different, most of the rainwater pollution degree is not high, can be discharged directly, if all the rainwater is discharged to the treatment plant, the processing burden of the treatment plant has been increased; 2. In the early stage of rainfall, because the rainwater dissolves a large amount of polluting gases such as acid gas in the air, automobile exhaust gas, and factory exhaust gas, and then scours the surface of buildings after it falls, it usually exceeds the pollution level of urban sewage and needs to be discharged to Sewage treatment plant treatment, this invention can not solve the problem of separate treatment of initial rainwater and late rainwater.

Contents of the invention

According to one aspect of the present invention, a kind of building drainage facility is provided, comprising rainwater collection box, sewage collection pipe, adjusting storage tank, main drainage pipe; Described rainwater collection box is used for collecting rainwater, and it has a first water outlet, The first water outlet communicates with the main drainage pipe through a drainage pipe; the sewage collection pipe is connected to a domestic sewage source for discharging domestic sewage, and its water outlet is located above the opening of the storage tank; The pool is used to receive domestic sewage discharged from the sewage collection pipe, and has a first outlet connected to the main drainage pipe, and a second outlet connected to the main drainage pipe, and the height of the second outlet is higher than that of the first outlet; It is characterized in that: the main drainage pipe has two outlets, the third outlet and the fourth outlet, wherein the third outlet is used to discharge sewage to be treated to the sewage treatment plant, and the fourth outlet is used to discharge rainwater; the fourth outlet is located at Below the first water outlet of the rainwater collection tank and the communication part of the main drainage pipe; a first pressure control valve is set between the first outlet of the storage tank and the communication part, and a first pressure control valve is set between the communication part and the communication part. A second pressure control valve is arranged between the fourth outlets.

Preferably, the control pressures of the first pressure control valve and the second pressure control valve are different.

Preferably, the first pressure control valve and the second pressure control valve are set to: when there is only domestic sewage, the first pressure control valve opens toward the third outlet of the main drain pipe, and the second pressure control valve Closed, the domestic sewage is discharged to the sewage treatment plant through the third outlet of the main drainage pipe; when there is only rainwater, the rainwater descends through the drainage pipe, and its pressure opens the second pressure control valve, closing the first pressure control valve, The rainwater is discharged through the fourth outlet of the main drainage pipe; when domestic sewage and rainwater exist at the same time, the pressure of the rainwater drop opens the second pressure control valve, closes the first pressure control valve, and makes the rainwater pass through the fourth outlet of the main drainage pipe. The outlet is discharged, while the domestic sewage is stored in the storage tank, and when its water level reaches a certain height, it is discharged through the second outlet of the storage tank to the third outlet of the main drainage pipe.

Preferably, the first water outlet of the rainwater collection box is located on the side of the rainwater collection box, which is at a certain height from the bottom surface.

Preferably, the specific height corresponds to the height of incipient rain.

Preferably, the rainwater collection box further includes a second water outlet, and the second water outlet is connected to the sewage collection pipe through a solenoid valve.

Preferably, the second water outlet of the rainwater collection tank is located on the bottom surface of the rainwater collection pipe.

Preferably, a flow meter is provided between the second water outlet and the sewage collection pipe, the solenoid valve is usually in an open state, and when the flow of rainwater passing through the flow meter exceeds a specific value within a specific time, it is closed said flow meter; said specific value corresponds to the flow of incipient rainwater.

Preferably, a humidity sensor is also included, and the solenoid valve is closed when the ambient humidity drops from a specific high humidity to a specific low humidity.

Description of drawings

Figure 1 is a schematic diagram of an embodiment of the present invention.

detailed description

The following embodiments of the present invention, which are disclosed herein together with their advantages and features, will become apparent by reference to the following description and accompanying drawings. Furthermore, it should be understood that the features of the various embodiments described herein are not mutually exclusive and can exist in various combinations and permutations.

Referring to Fig. 1, the building drainage facility of the present invention includes a rainwater collection box 1, a sewage collection pipe 2, a storage tank 3, and a main drainage pipe 4. Wherein, the rainwater collection box 1 is used for collecting rainwater, and it has a first water outlet 5, and the first water outlet 5 communicates with the main drainage pipe 4 through a drainage pipe. The sewage collection pipe 2 is connected with the domestic sewage source for discharging domestic sewage, and its water outlet is located above the opening of the storage tank 3 . The storage tank 3 is used to receive domestic sewage discharged from the sewage collection pipe 2, and has a first outlet 31 connected to the main drainage pipe, and a second outlet 32 connected to the main drainage pipe. The height of the second outlet 32 is higher than that of the first outlet 31 . The main drainage pipe has two outlets, the third outlet 41 and the fourth outlet 42, wherein the third outlet 41 is used to discharge sewage to be treated to the sewage treatment plant, and the fourth outlet 42 is used to discharge rainwater; the fourth outlet 42 is located in the rainwater collection The first water outlet of the tank is below the communication part of the main drainage pipe; the first pressure control valve 6 is set between the first outlet 31 of the storage tank and the communication part, and the first pressure control valve 6 is arranged between the communication part and the first A second pressure control valve 7 is arranged between the two outlets.

The first pressure control valve 6 and the second pressure control valve 7 are set to: when there is only domestic sewage, the first pressure control valve 6 opens toward the third outlet 41 of the main drain pipe, the second pressure control valve 7 closes, and the life The pressure of the sewage is not enough to open the second pressure control valve 7, and the domestic sewage is discharged to the sewage treatment plant through the third outlet 41 of the main drain pipe; when there is only rainwater, the rainwater falls through the drain pipe, and its pressure makes the first pressure control valve Close the domestic sewage in the direction of the first outlet 31 of the storage tank 3, and open the second pressure control valve 7, so that the rainwater is discharged through the fourth outlet 42 of the main drainage pipe; when domestic sewage and rainwater exist at the same time, the rainwater drops The pressure of the second pressure control valve 7 is opened, the first pressure control valve 6 is closed, and the rainwater is discharged through the fourth outlet 42 of the main drainage pipe, while the domestic sewage is stored in the storage tank 3. When the water level reaches a certain height, It is discharged to the fourth outlet 42 of the main drain pipe 4 through the second outlet 32 of the storage tank. Through the above arrangement, the rainwater can be discharged through the fourth outlet 42 of the main drainage pipe without being transported to the sewage treatment plant, thereby reducing the treatment burden of the sewage treatment plant.

Preferably, in order to avoid the influence of initial rainwater, the first water outlet 5 of the rainwater collection box 1 can be arranged on the side of the rainwater collection box 5 at a certain height from the bottom surface, which corresponds to the height of the initial rainwater. Preferably, in order to discharge the initial rainwater to the sewage treatment plant for treatment, a second water outlet 12 can be provided on the bottom surface of the rainwater collection tank 1 , which is connected to the sewage collection pipe 2 through the solenoid valve 8 .

Preferably, a flowmeter can be set between the second water outlet 12 of the rainwater collection tank 1 and the sewage collection pipe 2, and the solenoid valve 8 is usually in an open state. When the rainwater flow through the flowmeter exceeds After the rainfall value of the initial rainwater is reached, the flowmeter is closed;

Preferably, a humidity sensor is also included. When the ambient humidity drops from a specific high humidity to a specific low humidity, it means that the rain has stopped, and the solenoid valve 8 is opened to discharge the residual rainwater in the rainwater collection tank 1 .

In addition, those skilled in the art can also make other changes within the spirit of the present invention, as long as they do not deviate from the technical effects of the present invention. These changes made according to the spirit of the present invention should be included in the scope of protection of the present invention.

Claims (5)

1. A building drainage facility, comprising a rainwater collection box, a sewage collection pipe, a storage tank, and a main drainage pipe; the rainwater collection box is used to collect rainwater, and it has a first water outlet, and the first water outlet passes through The drainage pipe communicates with the main drainage pipe; the sewage collection pipe is connected to the domestic sewage source for discharging domestic sewage, and its outlet is located above the opening of the storage tank; the storage tank is used to receive the sewage collection pipe The discharged domestic sewage has a first outlet connected to the main drainage pipe, and a second outlet connected to the main drainage pipe, the height of the second outlet is higher than the height of the first outlet; it is characterized in that: the main drainage The pipe has two outlets, the third outlet and the fourth outlet, wherein the third outlet is used to discharge sewage to be treated to the sewage treatment plant, and the fourth outlet is used to discharge rainwater; the fourth outlet is located at the fourth outlet of the rainwater collection tank A water outlet is below the communication part of the main drainage pipe; a first pressure control valve is set between the first outlet of the storage tank and the communication part, and a first pressure control valve is provided between the communication part and the fourth outlet Second pressure control valve. 2. The building drainage facility according to claim 1, wherein the control pressures of the first pressure control valve and the second pressure control valve are different. 3. The building drainage facility according to claim 2, characterized in that: the first pressure control valve and the second pressure control valve are set such that when there is only domestic sewage, the first pressure control valve The direction of the third outlet of the drainage pipe is opened, the second pressure control valve is closed, and the domestic sewage is discharged to the sewage treatment plant through the third outlet of the main drainage pipe; when there is only rainwater, the rainwater falls through the drainage pipe, Its pressure opens the second pressure control valve, closes the first pressure control valve, and makes the rainwater discharge through the fourth outlet of the main drainage pipe; when domestic sewage and rainwater exist at the same time, the pressure of the rainwater drops to open the second pressure control valve, Close the first pressure control valve so that the rainwater is discharged through the fourth outlet of the main drainage pipe, while the domestic sewage is stored in the storage tank, and when the water level reaches a certain height, it is discharged to the main drainage pipe through the second outlet of the storage tank the third exit. 4. The building drainage facility according to claim 3, characterized in that: the first water outlet of the rainwater collection box is located on the side of the rainwater collection box, which is at a certain height from the bottom surface. 5. The building drainage facility according to claim 4, wherein the specific height corresponds to the height of incipient rainwater.