CN109235557B

CN109235557B - Waste water recycling energy-saving system with variable pipe diameter

Info

Publication number: CN109235557B
Application number: CN201811270915.9A
Authority: CN
Inventors: 吴联凯
Original assignee: Individual
Current assignee: Individual
Priority date: 2018-10-29
Filing date: 2018-10-29
Publication date: 2020-12-22
Anticipated expiration: 2038-10-29
Also published as: CN109235557A

Abstract

The invention discloses a waste water recycling energy-saving system with variable pipe diameter, which is provided with a filtering device and a variable pipe diameter part for carrying out twice treatment on waste water of a washing machine entering a water pump.

Description

Waste water recycling energy-saving system with variable pipe diameter

Technical Field

The invention relates to the technical field of household wastewater recovery, in particular to a variable-pipe-diameter laundry wastewater recovery energy-saving system.

Background

Water resources are at a premium and in urban life, the amount of water used by each household is significant, which puts a great deal of pressure on the municipal water supply system. In household water, the water consumption of a washing machine is the largest household appliance, and a large amount of waste water is discharged in the washing and rinsing processes, is different from kitchen waste water, does not contain grease or perishable food residues, and can be recycled in other household water occasions, such as flushing a toilet. In the prior art, there are some water recovery energy saving systems for recovering laundry waste water for toilet bowls.

In the prior art, some of the inventors have recognized the need for filtration of washing machine wastewater. For example, chinese patent publications CN 106869233 a and CN 104695513 a both disclose an energy-saving system with turbidity meter for recovering waste water from washing machine, and these prior arts all filter and recover relatively clean waste water by measuring the turbidity of waste water. Through long-term observation and practice of the inventor, the main impurities in the laundry wastewater are soluble impurities (including some small particle suspended matters) such as laundry detergent, dye and the like and insoluble impurities such as hair, clothes fiber, silt and the like. Wherein soluble impurity does not influence flush water of toilet bowl, also can not block up the pipeline or damage the water pump, consequently even turbidity is higher, if the aquatic all is this kind of impurity, also does not influence the use that water is used for toilet bowl. Insoluble impurities such as hair, clothing fibers, silt and the like can block the pipeline and damage the water pump, so that the impurities need to be removed. In the prior art, the impurities are removed by adopting a mode of arranging a filter screen in front of the water pump, the filter screen is arranged on a radial plane of the pipeline, but the filter screen cannot remove particle impurities such as silt and the like, and is easily blocked by hair or clothes fibers, the blocked pipeline causes the flow speed of water to be reduced, the pipeline is blocked, and the energy of the water pump is wasted.

Disclosure of Invention

In order to solve the technical problems, the invention specifically adopts the following technical scheme:

the invention provides a waste water recycling energy-saving system with variable pipe diameters. The filter equipment has water inlet portion, play water portion and drainage part, the water inlet portion connects washing machine's outlet pipe, the water inlet portion that becomes the tube diameter portion is connected to the delivery port, become the play water portion connection suction pump of tube diameter portion, the storage water tank is connected to the suction pump play water end, the water outlet portion of storage water tank passes through tee junction toilet's water tank. The position of the water storage tank is higher than that of a water tank of the toilet bowl. A first control valve is arranged between the water storage tank and the water pump and used for controlling the on-off of a pipeline between the water suction pump and the water storage tank.

Become pipe diameter portion has the head tube, becomes pipe diameter district and back pipe, become pipe diameter district between head tube and back pipe, become pipe diameter district and have horizontally top wall and convex bottom wall downwards, the longitudinal section of bottom wall is the arc, consequently become the internal diameter in pipe diameter district and be greater than the internal diameter of head tube or back pipe, and become pipe diameter district internal diameter and be continuous variation, be gradually grow to the biggest pipe diameter promptly, diminish gradually again. Become the low reaches level in pipe diameter district and be provided with first filter screen. And the upper part of the pipe diameter changing area is provided with an access hole.

The bottom center of the pipe diameter changing area, namely the bottom of the largest pipe diameter, is provided with a vertical deposition pipe, and the lower end of the deposition pipe is provided with a sewage outlet.

The upper portion has the second filter screen of level setting in the storage water tank, passes through from the suction pump the first control valve flows in the waste water of storage water tank passes through behind the second filter screen, the storage water tank is flowed out to the storage water tank of the storage water tank water outlet portion in the middle of the rethread storage water tank bottom plate.

The water storage tank is characterized in that a water outlet pipe of the water storage tank is arranged in the middle of the bottom plate of the water storage tank, a water return pipe is arranged below the water outlet pipe, a blow-down valve is arranged on the lower portion of the water return pipe, a side pipe is arranged on the side wall between the water outlet pipe and the water return pipe, a second control valve is arranged on the side pipe, and the second control valve is used for controlling the on-off of the side pipe.

The side pipe is connected with a side inlet of the tee joint, an upper inlet of the tee joint is connected with a tap water pipe, and a third control valve is arranged on the tap water pipe and used for controlling the on-off of the tap water pipe. The lower outlet of the tee joint is connected with the water inlet pipe of the water tank of the toilet bowl.

The filter device comprises a water inlet part, a water outlet part and a water discharging part, wherein the water inlet part of the filter device is connected with a water discharging pipe of the washing machine through a water inlet interface, and the water outlet part is connected with a water inlet pipe of the water suction pump through a water outlet interface. The filtering device is provided with a middle cavity which is expanded downwards relative to the inner diameter of the water inlet part, the middle cavity is horizontally provided with a water diversion plate, and the water diversion plate divides the wastewater flowing into the middle cavity from the water inlet part into an upper path and a lower path. The front side bottom of middle part cavity has inside sunken concave surface, the rear side bottom of middle part cavity has outside outstanding convex surface, the drainage portion that has the perpendicular setting between concave surface and the convex surface.

Furthermore, smooth continuous curved surfaces are arranged among the lower inner surface of the water inlet part, the concave surface of the front bottom of the middle cavity and the inner surface of the water discharging part, and the lower surface of the water outlet part, the convex surface of the rear bottom of the middle cavity and the inner surface of the water discharging part are discontinuous.

The downside of water diversion board is provided with the rotor plate, the downside at the water diversion board is installed through the axis of rotation to the upper end of rotor plate. The rotating plate is rotatable about a rotating shaft. When the rotating plate is vertical, a gap is formed between the lower end of the rotating plate and the inner surface of the convex surface, and when the rotating plate rotates rightwards, the gap is gradually increased.

And an access hole is formed above the middle cavity of the filtering device.

Further, the pipe diameter of the water inlet part is larger than the pipe diameter of the water outlet part and the pipe diameter of the water drainage part.

The invention carries out twice treatment on the washing machine wastewater entering the water pump by arranging the filtering device and the pipe diameter changing part, and because the filtering device is not provided with the filtering net parallel to the cross section of the pipeline, the flow speed of the wastewater in the pipeline cannot be reduced, the condition that the pipeline cannot be communicated because the filtering net is blocked by sundries cannot be generated, and the energy consumption of the water pump is also saved.

Drawings

FIG. 1 is a schematic view of the whole waste water recovery energy-saving system of the present invention; (ii) a

FIG. 2 is a schematic view of a variable-pipe diameter portion of the waste water recovery energy-saving system of the present invention;

FIG. 3 is a schematic view of a water tank of the waste water recovery energy-saving system of the present invention;

FIG. 4 is a schematic diagram of a filtering apparatus of the waste water recycling energy-saving system of the present invention;

FIG. 5 is a diagram of the operation of the filtering device of the waste water recycling energy-saving system of the present invention.

Detailed Description

The invention is further explained below with reference to the drawings and the specific embodiments.

Referring to fig. 1, the waste water recycling energy-saving system of the present invention includes a filtering device 1, a water pump 2, a water tank 3, and a variable pipe diameter portion 12. Filter equipment 1 has water inlet portion, play water portion and drainage portion, water inlet portion connects washing machine's outlet pipe 5, the portion of intaking that becomes pipe diameter portion 12 is connected to play water portion, become the play water portion of pipe diameter portion 12 and connect suction pump 2, suction pump 2 goes out the water end and connects storage water tank 3, the play water portion of storage water tank 3 passes through tee bend 11 and connects toilet's water tank 4. The storage tank 3 is positioned higher than the tank 4 of the toilet. A first control valve 6 is arranged between the water storage tank 3 and the water pump 2, and the first control valve 6 is used for controlling the on-off of a pipeline between the water suction pump 2 and the water storage tank 3.

Referring to fig. 2, the pipe diameter varying section 12 includes a front pipe 1201, a pipe diameter varying region 1203 and a rear pipe 1202, the pipe diameter varying region 1203 is between the front pipe 1201 and the rear pipe 1202, the pipe diameter varying region 1203 has a horizontal top wall and a downwardly convex bottom wall, and a longitudinal section of the bottom wall is arc-shaped, so that an inner diameter of the pipe diameter varying region 1203 is larger than that of the front pipe 1201 or the rear pipe 1202, and the inner diameter of the pipe diameter varying region 1203 continuously changes, i.e., gradually increases to a maximum pipe diameter and then gradually decreases. A first filter screen 1206 is horizontally arranged at the downstream of the pipe diameter changing area 1203. The bottom center of the pipe diameter changing area 1203, namely the bottom of the largest pipe diameter, is provided with a vertical deposition pipe 1205, and the lower end of the deposition pipe 1205 is provided with a sewage discharge port 1207. As the water flow direction shown by the arrow in fig. 2, the waste water flowing out from the filtering device 1 enters the pipe diameter changing part 12 and then is divided into a horizontal branch and a downward branch, because hair and silt have higher density than water, most of impurities such as hair and silt enter the downward branch, the flowing speed of the waste water in the downward branch is slowed down, most of impurities are retained in the pipe diameter changing area 1203 and do not enter a subsequent pipeline, and meanwhile, because the first filter screen 1206 can filter out the impurities such as hair and clothes fiber in the water, the water flow in the downward branch is slowed down, and the pipe diameter changing area 1203 is favorable for the impurities such as silt. When the foreign substances in the settling pipe 1205 are excessively accumulated, the drain 1207 is opened to discharge the accumulated foreign substances from the settling pipe 1205.

The upper part of the pipe diameter changing area 1203 is provided with an access hole, and after the access hole is opened, the first filter screen 1206 can be taken out for cleaning.

Referring to fig. 3, a second filter screen 301 is horizontally disposed at the upper middle portion of the storage tank 3, and the waste water flowing into the storage tank 3 from the water pump 2 through the first control valve 6 passes through the second filter screen 301 and then flows out of the storage tank 3 through a storage tank outlet portion 302 in the middle of a bottom plate 304 of the storage tank 3. The storage tank 3 has an access opening (not shown) in the upper part thereof, and the second filter screen 301 can be taken out from the access opening for cleaning.

A water outlet pipe 308 of the water storage tank is arranged in the middle of the bottom plate 304, a water return pipe 309 is arranged below the water outlet pipe 308, a side pipe 310 is arranged on the side wall between the water outlet pipe 308 and the water return pipe 309, a second control valve 7 is arranged on the side pipe 310, and the second control valve 7 is used for controlling the on-off of the side pipe 310.

As shown in fig. 3, the waste water flowing out of the outlet pipe 308 of the water storage tank 3 includes residual silt, and since silt is heavier than water, the residual silt in the waste water is remained in the return pipe 309 during the process that the waste water flowing out of the outlet pipe 308 of the water storage tank 3 flows back in the return pipe 309. A drain valve 311 is provided at the lower part of the return pipe 309, and the drain valve 311 can be opened to drain the silt accumulated in the return pipe 309 out of the whole piping system.

The side pipe 310 is connected with a side inlet of the tee joint 11, an upper inlet of the tee joint 11 is connected with a tap water pipe 9, a third control valve 8 is arranged on the tap water pipe 9, and the third control valve 8 is used for controlling the on-off of the tap water pipe 9. The lower outlet of the tee joint 11 is connected with the water inlet pipe of the water tank 4 of the toilet bowl. When the amount of water in the water storage tank 3 is sufficient, the third control valve 8 may be closed, the second control valve 7 may be opened to allow the washing wastewater stored in the water storage tank 3 to flow into the water tank 4 of the toilet bowl, and when the amount of water in the water storage tank 3 is insufficient, the third control valve 8 may be opened to close the second control valve 7 to allow the water in the water supply line to flow into the water tank 4 of the toilet bowl.

Further, the filtering apparatus 1 pretreats the washing machine wastewater. As shown in fig. 4, the filter device 1 includes a water inlet portion, a water outlet portion and a water discharge portion 104, the water inlet portion of the filter device 1 is connected to a water discharge pipe of the washing machine through a water inlet interface 101, and the water outlet portion is connected to a water inlet pipe of the water pump 2 through a water outlet interface 102. The filtering device 1 is provided with a middle cavity which is expanded downwards relative to the inner diameter of the water inlet part, the middle cavity is horizontally provided with a water diversion plate 107, and as shown in fig. 5, the water diversion plate 107 divides the waste water flowing into the middle cavity from the water inlet part into an upper path and a lower path. The front bottom of the middle cavity has an inwardly concave surface 105, the rear bottom of the middle cavity has an outwardly convex surface 106, and a vertically disposed drain 104 is provided between the concave surface 105 and the convex surface 106 (with "front and rear" being relative to the direction of water flow). Further, the lower inner surface of the water inlet part, the concave surface 105 of the front bottom of the central cavity and the inner surface of the water discharge part 104 are smooth and continuous curved surfaces, while the lower surface of the water outlet part, the convex surface 106 of the rear bottom of the central cavity and the inner surface of the water discharge part 104 are discontinuous. A rotating plate 108 is arranged on the lower side of the water diversion plate 107, and the upper end of the rotating plate 108 is mounted on the lower side of the water diversion plate 107 through a rotating shaft 109. The rotating plate 108 is rotatable about a rotation axis 109. When the rotating plate 108 is vertical, the lower end of the rotating plate 108 has a gap with the inner surface of the convex surface 106, and when the rotating plate 108 rotates to the right, the gap becomes gradually larger.

An access hole 103 is arranged above the middle cavity of the filtering device 1, and the access hole 103 can be opened and used for cleaning the water diversion plate 107 and the rotating plate 108.

Further, the pipe diameter of the water inlet part is larger than the pipe diameter of the water outlet part and the pipe diameter of the water drainage part. The filter device 1 of the invention works as follows: referring to fig. 5, the wastewater of the washing machine enters the water inlet part through the water inlet interface 101 and is divided into two paths by the water diversion plate 107, wherein the wastewater on the upper path flows to the water outlet part through the pipeline above the water diversion plate 107, and the wastewater on the lower path flows to the lower part of the water diversion plate 107, because the density of hair and sand is greater than that of water, when the wastewater of the washing machine flows out from the water discharge pipe, most of impurities such as hair and sand are close to the inner surface of the lower side of the water inlet part, most of the impurities flow to the lower side of the water diversion plate 107 along with the wastewater on the lower path, the rotating plate 108 is pushed to deflect rightwards around the rotating shaft 109, one part of the wastewater on the lower path is discharged to a sewer through the water discharge part 104, and the other part of the wastewater flows to the return area on the. The water pump 2 pumps water into the water storage tank 3, the water flow pressure in the filtering device is kept, and because the lower side inner surface of the water inlet part, the concave surface 105 at the bottom of the front side of the middle cavity and the inner surface of the water discharging part 104 are smooth continuous curved surfaces, when impurities such as hair, silt and the like flow to the lower part of the water diversion plate 107 along with the waste water flowing downwards, the lower side surface of the water discharging part, the convex surface 106 at the bottom of the rear side of the middle cavity and the inner surface of the water discharging part 104 are discontinuous, meanwhile, the right side of the rotating plate 108 is provided with a backflow area, the waste water flows back through the backflow area, and therefore impurities such as silt or hair and the like can be detained in the backflow area and cannot continuously enter the water discharging part. Meanwhile, when the rotating plate 108 rotates rightwards, the gap between the lower end of the rotating plate 108 and the inner surface of the convex surface 106 is gradually increased, which is used for controlling the pressure of a backflow area, if the water flow rate is increased through the gap, the lower wastewater pushes the rotating plate 108 to deflect rightwards, the amplitude is also increased, and the gap is increased, so that the flow rate of water is reduced.

Although particular embodiments of the invention have been described and illustrated in detail, it should be understood that various combinations, equivalent changes and modifications of the above-described embodiments are possible within the spirit of the invention, and that the functional effects produced thereby are within the scope of the invention. The above description is only a preferred embodiment of the present invention, and is not intended to limit the present invention, and any minor modifications, equivalent replacements and improvements made to the above embodiment according to the technical spirit of the present invention should be included in the protection scope of the technical solution of the present invention.

Claims

1. The waste water recycling energy-saving system with the variable pipe diameter is characterized by comprising a filtering device, a water suction pump, a water tank and a variable pipe diameter part, wherein the filtering device is provided with a water inlet part, a water outlet part and a water drainage part, the water inlet part is connected with a water outlet pipe of a washing machine, the water outlet part is connected with the water inlet part of the variable pipe diameter part, the water outlet part of the variable pipe diameter part is connected with the water suction pump, the water outlet end of the water suction pump is connected with a water storage tank, the water outlet part of the water storage tank is connected with the water tank of a water closet through a tee joint, the position of the water storage tank is higher than that of the water closet, a first control valve is arranged between the water storage tank and a water pump, and the first control valve;

the pipe diameter changing part is provided with a front pipe, a pipe diameter changing area and a rear pipe, the pipe diameter changing area is arranged between the front pipe and the rear pipe, the pipe diameter changing area is provided with a horizontal top wall and a downward convex bottom wall, and the longitudinal section of the bottom wall is arc-shaped, so that the inner diameter of the pipe diameter changing area is larger than that of the front pipe or the rear pipe, the inner diameter of the pipe diameter changing area is continuously changed, and a first filter screen is horizontally arranged at the downstream of the pipe diameter changing area; the bottom center of the pipe diameter changing area is provided with a vertical deposition pipe, and the lower end of the deposition pipe is provided with a sewage outlet;

the middle upper part of the water storage tank is provided with a second filter screen which is horizontally arranged, and the wastewater which flows into the water storage tank from the water suction pump through the first control valve passes through the second filter screen and then flows out of the water storage tank through the water outlet part of the water storage tank in the middle of the bottom plate of the water storage tank;

a water storage tank water outlet pipe is arranged in the middle of the water storage tank bottom plate, a water return pipe is arranged below the water outlet pipe, a blow-down valve is arranged at the lower part of the water return pipe, a side pipe is arranged on the side wall between the water outlet pipe and the water return pipe, a second control valve is arranged on the side pipe and used for controlling the on-off of the side pipe;

the side pipe is connected with a side inlet of the tee joint, an upper inlet of the tee joint is connected with a tap water pipe, a third control valve is arranged on the tap water pipe and used for controlling the on-off of the tap water pipe, and a lower outlet of the tee joint is connected with a water inlet pipe of a water tank of the toilet bowl;

the filter device comprises a water inlet part, a water outlet part and a water discharging part, wherein the water inlet part of the filter device is connected with a water discharging pipe of the washing machine through a water inlet interface, the water outlet part is connected with a water inlet pipe of a water suction pump through a water outlet interface, the filter device is provided with a middle cavity which expands downwards relative to the inner diameter of the water inlet part, the middle cavity is horizontally provided with a water dividing plate, the water dividing plate divides waste water flowing into the middle cavity from the water inlet part into an upper path and a lower path, the bottom of the front side of the middle cavity is provided with an inwards concave surface, the bottom of the rear side of the middle cavity is provided with an outwards convex surface, and the water discharging part which is vertically arranged is arranged between;

smooth continuous curved surfaces are arranged among the inner surface of the lower side of the water inlet part, the concave surface of the bottom of the front side of the middle cavity and the inner surface of the water discharging part, and the lower side surface of the water outlet part, the convex surface of the bottom of the rear side of the middle cavity and the inner surface of the water discharging part are discontinuous;

a rotating plate is arranged on the lower side of the water distribution plate, the upper end of the rotating plate is mounted on the lower side of the water distribution plate through a rotating shaft, the rotating plate can rotate around the rotating shaft, when the rotating plate is vertical, a gap is formed between the lower end of the rotating plate and the inner surface of the convex surface, and when the rotating plate rotates rightwards, the gap is gradually increased;

an access hole is formed above the middle cavity of the filtering device, and the pipe diameter of the water inlet part is larger than that of the water outlet part and that of the water drainage part.