A rainwater and sewage diversion device

Abstract

The present invention belongs to the field of diversion devices, and discloses a rainwater and sewage diversion device, including a box body and a valve plate mechanism, a partition is provided in the box body, the partition divides the box body into a rainwater chamber and a sewage chamber, the partition is provided with a through hole, the rainwater chamber is provided with a rainwater inlet, and the sewage chamber is provided with a combined pipe interface, a sewage outlet and a rainwater outlet; the valve plate mechanism includes a float, a linkage assembly and a valve plate, the float is arranged in the rainwater chamber, the valve plate is arranged in the sewage chamber, one end of the linkage assembly is connected to the float, and the other end is connected to the valve plate; in the initial state, the float is located at the bottom of the rainwater chamber, and the valve plate closes the through hole. When the float floats up, the linkage assembly drives the valve plate to rotate, so that the valve plate gradually moves away from the through hole and gradually closes the sewage outlet. The present invention can judge whether the nature of the current drainage is rainwater or sewage according to the runoff rainwater generated on rainy days, and automatically realize the switching of the drainage direction, accurately control the diversion of rainwater and sewage, improve the utilization rate of water resources, and reduce the treatment load of the sewage plant.

Description

Technical Field

[0001] The invention relates to the field of diversion devices, in particular to a rainwater and sewage diversion device. Background Art

[0002] In the process of urban sewage treatment, the mixing of rainwater and sewage, the infiltration of external water, and the sudden increase in water inflow during the rainy season have caused serious impacts on the urban sewage system. A large amount of untreated sewage has entered the water body, causing serious water pollution. In addition, the mixing of rainwater and sewage has also caused the clean rainwater in the middle and late stages to be unable to be directly discharged into the river for recycling. Instead, it needs to be purified and treated together with sewage in the sewage treatment system before being discharged, which not only makes it impossible to better utilize various water resources, but also increases the treatment pressure of the sewage treatment system. Summary of the invention

[0003] The purpose of the present invention is to provide a rainwater and sewage diversion device, which can judge whether the nature of the current drainage is rainwater or sewage according to the runoff rainwater generated on rainy days, and automatically switch the drainage destination, accurately control the diversion of rainwater and sewage, improve water resource utilization, and reduce the treatment load of sewage treatment plants.

[0004] The technical solution provided by the present invention is as follows:

[0005] A rainwater and sewage diversion device, comprising:

[0006] A box body, wherein a partition is provided in the box body, the partition body divides the box body into a rainwater chamber and a sewage chamber, the partition body is provided with a through hole connecting the rainwater chamber and the sewage chamber, the rainwater chamber is provided with a rainwater inlet connected to the rainwater chamber, the sewage chamber is provided with a confluence pipe interface connected to the sewage chamber, a sewage outlet and a rainwater outlet, and the rainwater outlet is located at a higher position in the box body than the sewage outlet;

[0007] A valve plate mechanism, comprising a float, a linkage assembly and a valve plate, wherein the float is arranged in the rainwater chamber, the valve plate is arranged in the sewage chamber, the linkage assembly is movably arranged in the box, one end of the linkage assembly is connected to the float, and the other end of the linkage assembly is connected to the valve plate;

[0008] In the initial state, the float is located at the bottom of the rainwater chamber, and the valve plate closes the through hole. When the float floats up, the linkage assembly drives the valve plate to rotate, so that the valve plate gradually moves away from the through hole and gradually closes the sewage outlet.

[0009] Further preferably, the linkage assembly includes a first wheel, a second wheel, a synchronous belt, a first linkage shaft and a second linkage shaft, the first wheel and the second wheel are respectively rotatably arranged on the box body, the first wheel and the second wheel are connected to each other through the synchronous belt, one end of the first linkage shaft is connected to the float, the other end of the first linkage shaft is connected to the first wheel, one end of the second linkage shaft is connected to the second wheel, and the other end of the second linkage shaft is connected to the valve plate.

[0010] Further preferably, the diameter of the first rotating wheel is greater than the diameter of the second rotating wheel.

[0011] Further preferably, a synchronous rotation angle ratio of the first linkage shaft and the second linkage shaft is 1:3.

[0012] Further preferably, in an initial state, the angle between the first linkage shaft and the partition is 30 degrees.

[0013] Further preferably, a third chamber which is not connected to the rainwater chamber and the sewage chamber is further provided in the box body, and the first impeller, the second impeller and the synchronous belt are all arranged in the third chamber.

[0014] Further preferably, it also includes a water baffle, which is arranged in the sewage chamber, and the height of the water baffle is lower than the height of the sewage chamber. The water baffle divides the sewage chamber into a first chamber and a second chamber which are connected at the top, the first chamber is arranged close to the rainwater chamber, and the second chamber is arranged away from the rainwater chamber, the sewage outlet and the combined pipe interface are both connected to the first chamber, and the rainwater outlet is connected to the second chamber.

[0015] Further preferably, the sewage outlet is located at the bottom of the first chamber, and the rainwater outlet is located on the side wall of the second chamber.

[0016] Further preferably, the rainwater inlet is opened on the top of the rainwater chamber, and a grid plate is provided at the rainwater inlet.

[0017] Further preferably, a spare rainwater interface is also provided on the side wall of the rainwater chamber.

[0018] The technical effects of the present invention are:

[0019] (1) By setting a valve plate mechanism, before rain or at the initial stage of rain, under the action of the float's own gravity, the valve plate closes the through hole on the partition or slightly opens the sewage outlet, opens the sewage outlet, and discharges sewage and initial rainwater from the sewage outlet. In the middle and late stages of rain, the liquid level in the rainwater chamber rises, the float floats up, the valve plate moves away from the through hole on the partition and closes the sewage outlet, allowing a large amount of rainwater to enter the sewage chamber and be discharged from the rainwater outlet, thereby realizing rainwater and sewage diversion and improving water resource utilization. This not only effectively solves the water pollution problem caused by the inability of the prior art to distinguish rainwater and sewage, resulting in a large amount of sewage entering the rainwater pipe network and being directly discharged into the water system, but also effectively solves a series of water pollution problems caused by the excessive load of the sewage treatment plant caused by the direct connection of mixed rainwater and sewage in the combined pipe to the sewage pipe network.

[0020] (2) The installation of a rainwater and sewage separation device can effectively solve the diversion problem of combined risers in building communities. There is no need to face the danger of high-altitude operations caused by building new pipes in existing buildings, and there is no need to deal with a series of complex problems such as the waterproofing, insulation, decoration and coordination of residents of the existing building exterior walls. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] The present invention is further described in detail below in conjunction with the accompanying drawings and specific embodiments:

[0022] Figure 1 It is a top view of a specific embodiment of a rainwater and sewage diversion device of the present invention;

[0023] Figure 2 yes Figure 1 Cross-sectional view at 1-1.

[0024] Description of Figure Numbers:

[0025] 10. Box body; 101. Partition plate; 102. Through hole; 103. Rainwater inlet; 104. Combined pipe interface; 105. Sewage outlet; 106. Rainwater outlet; 107. Grid plate; 108. Manhole cover; 109. Spare rainwater interface; 11. Rainwater chamber; 12. Sewage chamber; 121. Water retaining plate; 122. First chamber; 123. Second chamber; 13. Third chamber;

[0026] 21. Float; 22. Linkage assembly; 221. First rotor; 222. Second rotor; 223. Synchronous belt; 224. First linkage shaft; 225. Second linkage shaft; 23. Valve plate. DETAILED DESCRIPTION

[0027] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0028] In order to simplify the drawings, only the parts related to the present invention are schematically shown in each figure, and they do not represent the actual structure of the product. In addition, in order to simplify the drawings and facilitate understanding, in some figures, only one of the parts with the same structure or function is schematically drawn or marked. In this article, "one" not only means "only one", but also means "more than one".

[0029] It should be further understood that the term “and / or” used in the specification and appended claims refers to any combination and all possible combinations of one or more of the associated listed items, and includes these combinations.

[0030] In this document, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it 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.

[0031] In addition, in the description of the present application, the terms "first", "second", etc. are only used to distinguish the description and cannot be understood as indicating or implying relative importance.

[0032] The present invention provides a specific embodiment of a rainwater and sewage diversion device, such as Figure 1 and Figure 2 As shown, it includes a box body 10 and a valve plate mechanism. A partition 101 is provided in the box body 10, and the partition 101 divides the box body 10 into a rainwater chamber 11 and a sewage chamber 12. The partition 101 is provided with a through hole 102 connecting the rainwater chamber 11 and the sewage chamber 12. The rainwater chamber 11 is provided with a rainwater inlet 103 connected to the rainwater chamber 11, and the sewage chamber 12 is provided with a confluence pipe interface 104 connected to the sewage chamber 12, a sewage outlet 105 and a rainwater outlet 106. The position of the rainwater outlet 106 in the box body 10 is higher than the sewage outlet 105, and the setting height of the rainwater outlet 106 can be set according to the amount of initial rainwater. The overall structure of the box body 10 can be formed by one-time injection molding of ABS / PVC, or can be formed by injection molding first and then post-processing.

[0033] The runoff rainwater enters the rainwater chamber 11 from the rainwater inlet 103 of the rainwater chamber 11. The combined pipe interface 104 on the sewage chamber 12 is used to connect the combined pipe that needs to be diverted. When it is not raining, sewage is passed into the sewage chamber 12 from the combined pipe interface 104. When it is raining, mixed rainwater and sewage are passed into the sewage chamber 12 from the combined pipe interface 104. The sewage outlet 105 is used to connect to the sewage pipe for external discharge, and the rainwater outlet 106 is used to connect to the rainwater pipe for external discharge.

[0034] Preferably, the size of the combined pipe interface 104 is φ110, the size of the sewage outlet 105 is φ110, and the size of the rainwater outlet 106 is φ160.

[0035] The valve plate mechanism includes a float 21, a linkage assembly 22 and a valve plate 23. The float 21 is arranged in the rainwater chamber 11, the valve plate 23 is arranged in the sewage chamber 12, the linkage assembly 22 is movably arranged in the box 10, one end of the linkage assembly 22 is connected to the float 21, and the other end of the linkage assembly 22 is connected to the valve plate 23. Preferably, the float 21, the linkage assembly 22 and the valve plate 23 are all made of stainless steel, the size of the float 21 is φ50, and the size of the valve plate 23 is φ130.

[0036] In the initial state, the float 21 is located at the bottom of the rainwater chamber 11, and the valve plate 23 closes the through hole 102. At this time, the rainwater chamber 11 is not connected with the sewage chamber 12. After the runoff rainwater enters the rainwater chamber 11, the liquid level in the rainwater chamber 11 rises, and the float 21 floats up with the rising liquid level. The float 21 is connected to the linkage assembly 22. After the float 21 rises, it drives the linkage assembly 22 to rotate, and the linkage assembly 22 drives the valve plate 23 to rotate, so that the valve plate 23 gradually moves away from the through hole 102 and gradually closes the sewage outlet 105. After the valve plate 23 moves away from the through hole 102 on the partition 101 and closes the sewage outlet 105, the rainwater chamber 11 is connected with the sewage chamber 12, and the rainwater in the rainwater chamber 11 can enter the sewage chamber 12 through the through hole 102 on the partition 101, and be discharged through the rainwater outlet 106 on the sewage chamber 12.

[0037] The working process of the rainwater and sewage diversion device of the present invention is as follows:

[0038] When it is not raining, the float 21 is located at the bottom of the rainwater chamber 11. Under the action of the gravity of the float 21, the valve plate 23 is maintained in a state of closing the through hole 102 on the partition 101, and the sewage outlet 105 is in an open state. The sewage entering the sewage chamber 12 from the combined pipe interface 104 is directly discharged into the sewage pipe from the sewage outlet 105.

[0039] At the beginning of rainfall, the initial rainwater enters the rainwater chamber 11 through the rainwater inlet 103 on the rainwater chamber 11, and the liquid level in the rainwater chamber 11 gradually rises, driving the float 21 to float up. The valve plate 23 at the through hole 102 on the partition 101 is in a slightly open state, and part of the initial rainwater enters the sewage chamber 12 from the through hole 102 on the partition 101. Because the amount of rain entering the sewage chamber 12 is small, the liquid level in the sewage chamber 12 is lower than the rainwater outlet 106. The initial rainwater entering the sewage chamber 12 and the mixed rainwater and sewage discharged into the sewage chamber 12 from the combined pipe interface 104 are all discharged from the sewage outlet 105. At the beginning of rainfall, the mixed rainwater and sewage discharged into the sewage chamber 12 from the combined pipe interface 104 is a mixture of initial rainwater and sewage. The pollutant concentration of the initial rainwater that flushes the surface source pollution is relatively high, so it also needs to be discharged from the sewage outlet 105 to the sewage plant for treatment.

[0040] When the rainfall is getting heavier, the float 21 continues to float up, the through hole 102 on the partition 101 is fully opened, the valve plate 23 closes the sewage outlet 105, and a large amount of middle and late rainwater in the rainwater chamber 11 enters the sewage chamber 12. The liquid level in the sewage chamber 12 continues to rise. When the liquid level exceeds the height of the rainwater outlet 106, a large amount of middle and late rainwater is discharged from the rainwater outlet 106. At this time, although mixed rainwater and sewage are introduced into the combined pipe interface 104, the amount of sewage in the rainwater and sewage is relatively small compared to the large amount of rainwater entering the sewage chamber 12, and can be ignored.

[0041] In the later period of rainfall, the rainfall becomes less and less, the liquid level in the rainwater chamber 11 gradually decreases, the valve plate 23 gradually moves away from the sewage outlet 105, and gradually closes the through hole 102 on the partition 101, and the sewage entering the sewage chamber 12 is discharged from the sewage outlet 105.

[0042] Since the pollutant concentration of the initial rainwater that washes off non-point source pollution is high, it is not recommended to discharge the initial rainwater directly from the rainwater outlet 106 to the rainwater pipe network or other water storage devices, but needs to be discharged into the sewage treatment facility together with the sewage for sewage treatment. The pollutant concentration of the mid- and late-stage rainwater is low, so it can be discharged through the rainwater outlet 106.

[0043] In the rainwater and sewage diversion device of the present invention, initial rainwater and sewage are discharged from the sewage outlet 105 for purification treatment, and rainwater with low pollutant concentration in the middle and late stages is directly discharged into the rainwater pipe network or connected to other water storage devices for water resource recycling. Not only the diversion of rainwater and sewage is achieved, but also the diversion of initial rainwater and middle and late rainwater can be achieved, which reduces the pressure of sewage treatment and improves the water resource recycling rate.

[0044] In one embodiment, Figure 2As shown, the linkage assembly 22 includes a first wheel 221, a second wheel 222, a synchronous belt 223, a first linkage shaft 224 and a second linkage shaft 225. The first wheel 221 and the second wheel 222 are respectively rotatably arranged on the housing 10, the first wheel 221 and the second wheel 222 are connected to the housing 10 through a rotating shaft, the first wheel 221 and the second wheel 222 are connected through a synchronous belt 223, one end of the first linkage shaft 224 is connected to the float 21, the other end of the first linkage shaft 224 is connected to the first wheel 221, one end of the second linkage shaft 225 is connected to the second wheel 222, and the other end of the second linkage shaft 225 is connected to the valve plate 23.

[0045] In the initial state, the valve plate 23 is fixed in a vertical state by the gravity of the float 21, so that the valve plate 23 closes the through hole 102 on the partition 101. When the liquid level in the rainwater chamber 11 rises, the float 21 rises with the liquid level, and the first linkage shaft 224 is connected to the float 21. After the float 21 rises, it drives the first linkage shaft 224 to rotate. The first linkage shaft 224 is fixedly connected to the first runner 221. The rotation of the first linkage shaft 224 drives the first runner 221 to rotate around its own rotation axis. The first runner 221 is connected to the second runner 222 through a synchronous belt 223. When the first runner 221 rotates, it drives the second runner 222 to rotate. The second linkage shaft 225 is fixedly connected to the second runner 222. The rotation of the second runner 222 drives the second linkage shaft 225 to rotate. The rotation of the second linkage shaft 225 drives the valve plate 23 to rotate, so that the valve plate 23 gradually moves away from the through hole 102 on the partition 101, and then gradually closes the sewage outlet 105. When the float ball 21 sinks, the valve plate 23 rotates in the opposite direction, that is, gradually moves away from the sewage outlet 105, and then gradually closes the through hole 102 on the partition plate 101.

[0046] The diameter of the first rotor 221 is greater than the diameter of the second rotor 222. The synchronous rotation angle ratio of the first linkage shaft 224 and the second linkage shaft 225 is 1:3. In the initial state, the angle between the first linkage shaft 224 and the partition 101 is 30 degrees. When the float 21 floats up and drives the first linkage shaft 224 to rotate 30 degrees, the second linkage shaft 225 rotates 90 degrees, so that the valve plate 23 just rotates from the vertical state to the horizontal state to close the sewage outlet 105. When the float 21 continues to float up, the first linkage shaft 224 no longer rotates due to the limiting effect of the partition 101, and the valve plate 23 is kept in the state of closing the sewage outlet 105.

[0047] Preferably, if Figure 1 As shown, the box body 10 is further provided with a third chamber 13 which is not connected to the rainwater chamber 11 and the sewage chamber 12, and the first rotating wheel 221, the second rotating wheel 222 and the synchronous belt 223 are all arranged in the third chamber 13. The first rotating wheel 221, the second rotating wheel 222 and the synchronous belt 223 are arranged in the third chamber 13 to prevent them from being damaged due to long-term immersion in water.

[0048] The first linkage shaft 224 and the second linkage shaft 225 may be rotated synchronously by means of a rotating wheel and a synchronous belt 223 , or may be rotated synchronously by means of gear meshing, or may be rotated synchronously by means of other existing synchronization mechanisms.

[0049] In one embodiment, Figure 1 and Figure 2 As shown, a water baffle 121 is provided in the sewage chamber 12, and the height of the water baffle 121 is lower than that of the sewage chamber 12. The water baffle 121 divides the sewage chamber 12 into a first chamber 122 and a second chamber 123 which are connected at the top. The first chamber 122 is arranged close to the rainwater chamber 11, and the second chamber 123 is arranged away from the rainwater chamber 11. The sewage outlet 105 and the confluence pipe interface 104 are both connected to the first chamber 122, and the rainwater outlet 106 is connected to the second chamber 123. The sewage outlet 105 is located at the bottom of the first chamber 122, and the rainwater outlet 106 is located on the side wall of the second chamber 123.

[0050] The water retaining plate 121 is arranged in the sewage chamber 12, and the water retaining plate 121 is roughly parallel to the partition 101. The water retaining plate 121 divides the sewage chamber 12 into a first chamber 122 and a second chamber 123. The upper part of the first chamber 122 is connected to the upper part of the second chamber 123. At the initial stage of rainfall, the initial rainwater in the rainwater chamber 11 first enters the first chamber 122 from the through hole 102 on the partition 101, and the sewage discharged from the combined pipe interface 104 also enters the first chamber 122 first. The initial rainwater and sewage entering the first chamber 122 are both discharged from the sewage outlet 105 at the bottom of the first chamber 122. The liquid level in the rainwater chamber 11 continues to rise, and more and more rainwater enters the first chamber 122. When the liquid level in the first chamber 122 exceeds the height of the water retaining plate 121, the rainwater enters the second chamber 123 from the top of the water retaining plate 121, and then is discharged from the rainwater outlet 106 at the side wall of the second chamber 123.

[0051] By setting a water retaining plate 121 in the sewage chamber 12, rainwater can be discharged from the rainwater outlet 106 only when the rainfall reaches a certain amount, so as to more accurately control the diversion of initial rainwater and mid- and late-stage rainwater. After setting the water retaining plate 121, the rainwater outlet 106 can be set at a lower part of the side wall of the second chamber 123, so that the rainwater in the second chamber 123 can be completely discharged.

[0052] In one embodiment, Figure 1 and Figure 2As shown, the rainwater inlet 103 is opened at the top of the rainwater chamber 11, and a grid plate 107 is arranged at the rainwater inlet 103. A manhole cover 108 is arranged on the top of the box body 10, and the manhole cover 108 is used in conjunction with the box body 10. The manhole cover 108 has an opening corresponding to the position of the rainwater chamber 11 to form the rainwater inlet 103, so that the runoff rainwater can enter the rainwater chamber 11. The grid plate 107 arranged at the rainwater inlet 103 can preliminarily intercept pollutants before the runoff rainwater enters the rainwater chamber 11. Preferably, the material of the manhole cover 108 can be composite resin, the thickness of the grid plate 107 is 30 mm, and the center distance between adjacent grids is 25 mm.

[0053] Optionally, the side wall of the rainwater chamber 11 is further provided with a spare rainwater interface 109, which is used to connect the rainwater pipe as an alternative when the runoff rainwater cannot directly enter the rainwater chamber 11 from the rainwater inlet 103. Preferably, the size of the spare rainwater interface 109 is φ110.

[0054] The above is only a preferred embodiment of the present invention. It should be pointed out that for ordinary technicians in this technical field, several improvements and modifications can be made without departing from the principle of the present invention. These improvements and modifications should also be regarded as the scope of protection of the present invention.

Claims

1. A rainwater and sewage diversion device, characterized in that: include: A box body, wherein a partition is provided in the box body, the partition body divides the box body into a rainwater chamber and a sewage chamber, the partition body is provided with a through hole connecting the rainwater chamber and the sewage chamber, the rainwater chamber is provided with a rainwater inlet connected to the rainwater chamber, the sewage chamber is provided with a confluence pipe interface connected to the sewage chamber, a sewage outlet and a rainwater outlet, and the rainwater outlet is located at a higher position in the box body than the sewage outlet; A valve plate mechanism, comprising a float, a linkage assembly and a valve plate, wherein the float is arranged in the rainwater chamber, the valve plate is arranged in the sewage chamber, the linkage assembly is movably arranged in the housing, the linkage assembly comprises a first runner, a second runner, a synchronous belt, a first linkage shaft and a second linkage shaft, the first runner and the second runner are rotatably arranged in the housing, the first runner is connected to the second runner through the synchronous belt, one end of the first linkage shaft is connected to the float, the other end of the first linkage shaft is connected to the first runner, one end of the second linkage shaft is connected to the second runner, and the other end of the second linkage shaft is connected to the valve plate; the diameter of the first runner is greater than the diameter of the second runner; In the initial state, the float is located at the bottom of the rainwater chamber, the valve plate closes the through hole, and when the float floats up, the linkage assembly drives the valve plate to rotate, so that the valve plate gradually moves away from the through hole and gradually closes the sewage outlet; It also includes a water baffle, which is arranged in the sewage chamber. The height of the water baffle is lower than the height of the sewage chamber. The water baffle divides the sewage chamber into a first chamber and a second chamber that are connected at the top. The first chamber is arranged close to the rainwater chamber, and the second chamber is arranged away from the rainwater chamber. The sewage outlet and the combined pipe interface are both connected to the first chamber, and the rainwater outlet is connected to the second chamber.

2. A rainwater and sewage diversion device according to claim 1, characterized in that: The synchronous rotation angle ratio of the first linkage shaft and the second linkage shaft is 1:

3.

3. A rainwater and sewage diversion device according to claim 1, characterized in that: In the initial state, the angle between the first linkage shaft and the partition is 30 degrees.

4. The rainwater and sewage diversion device according to claim 1, characterized in that: The box body is further provided with a third chamber which is not connected with the rainwater chamber and the sewage chamber, and the first rotating wheel, the second rotating wheel and the synchronous belt are all arranged in the third chamber.

5. The rainwater and sewage diversion device according to claim 1, characterized in that: The sewage outlet is located at the bottom of the first chamber, and the rainwater outlet is located at the side wall of the second chamber.

6. The rainwater and sewage diversion device according to claim 1, characterized in that: The top of the rainwater chamber is provided with the rainwater inlet, and a grid plate is provided at the rainwater inlet.

7. The rainwater and sewage diversion device according to claim 1, characterized in that: The side wall of the rainwater chamber is also provided with a spare rainwater interface.

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