阅读说明：本技术 废水余热回收再利用的设备及方法 (Equipment and method for recycling waste heat of wastewater ) 是由 王杰 于 2021-07-28 设计创作，主要内容包括：本发明提供了一种废水余热回收再利用的设备及方法,包括：壳体内设有空腔,空腔内设有储水件,储水件适于与出水管相连通；分流器和换热器间隔设置于空腔内,分流器适于设置在供热进水总管上,分流器上设有出水支管；换热器包括换热总管,换热总管环绕储水件设置,换热总管包括外管和设置在外管内的内管,内管和外管之间限定出过流通道,过流通道的进水端与出水支管相连通,过流通道的出水端与供热进水总管相连通,管内的流动的生活用水可以与过流通道内带有热量的水实现换热,实现对内管中的生活用水进行加热的目的,从而减少再需要通过对生活用水加热的目的,减少资源的浪费。(The invention provides equipment and a method for recycling waste water waste heat, which comprises the following steps: a cavity is arranged in the shell, a water storage part is arranged in the cavity, and the water storage part is suitable for being communicated with the water outlet pipe; the flow divider and the heat exchanger are arranged in the cavity at intervals, the flow divider is suitable for being arranged on a heat supply water inlet main pipe, and a water outlet branch pipe is arranged on the flow divider; the heat exchanger includes heat transfer house steward, heat transfer house steward encircles the setting of water storage spare, heat transfer house steward includes the outer tube and sets up the inner tube in the outer tube, inject out the overflow channel between inner tube and the outer tube, the end of intaking that overflows the channel is linked together with a water branch pipe, the delivery end that overflows the channel is linked together with heat supply water inlet house steward, the heat transfer can be realized with the water that has the heat in overflowing the channel to intraductal mobile domestic water, the realization is to the domestic water in the inner tube purpose of heating, thereby reduce the needs again through the purpose to domestic water heating, reduce the waste of resource.)

1. The utility model provides an equipment that waste water waste heat recovery recycled which characterized in that includes:

the water storage device comprises a shell (1), wherein a cavity (11) is formed in the shell (1), a water storage part (2) is arranged in the cavity (11), and the water storage part (2) is suitable for being communicated with a water outlet pipe;

the heat exchanger comprises a flow divider (3) and a heat exchanger, wherein the flow divider (3) and the heat exchanger are arranged in the cavity (11) at intervals, the flow divider (3) is suitable for being arranged on a heat supply water inlet main pipe, and a water outlet branch pipe (31) is arranged on the flow divider (3);

the heat exchanger comprises a heat exchange header pipe (4), the heat exchange header pipe (4) surrounds the water storage part (2), the heat exchange header pipe (4) comprises an outer pipe (41) and an inner pipe (42) arranged in the outer pipe (41), a flow passage (43) is defined between the inner pipe (42) and the outer pipe (41), the water inlet end of the flow passage (43) is communicated with the water outlet branch pipe (31), the water outlet end of the flow passage (43) is communicated with the heat supply water inlet header pipe, one end, close to the water outlet branch pipe (31), of the inner pipe (42) is suitable for being communicated with a water inlet pipe, and the other end of the inner pipe (42) is suitable for being communicated with the water storage part (2).

2. The waste water waste heat recycling device according to claim 1, further comprising a preheating pipe (5) disposed in the cavity (11), wherein the preheating pipe (5) is disposed around the heat exchange header pipe (4), the water inlet pipe is communicated with the preheating pipe (5), and the preheating pipe (5) is communicated with the inner pipe (42).

3. The waste water residual heat recycling device according to claim 1, wherein a plurality of connecting members (44) are provided in the flow passage (43), the connecting members (44) are arranged at intervals along the length direction of the inner pipe (42), each connecting member (44) comprises a plurality of connecting rods (441) arranged at intervals along the circumference direction of the inner pipe (42), one end of each connecting rod (441) is connected to the inner pipe (42), and the other end of each connecting rod (441) is supported on the outer pipe (41).

4. The waste water waste heat recycling device according to claim 1, wherein a plurality of partition plates (21) are arranged in the water storage member (2) at intervals so as to form a bent heat preservation flow passage (22) in the water storage member (2), and the water inlet end of the heat preservation flow passage (22) is arranged close to the water inlet pipe.

5. The waste water waste heat recycling device according to claim 1, wherein a flow dividing cavity (32) is arranged in the flow divider (3), a flow dividing filter screen (33) is arranged in the flow dividing cavity (32), the flow dividing filter screen (33) divides the flow dividing cavity (32) into a first cavity (321) and a second cavity (322), the first cavity (321) is communicated with the heat supply water inlet main pipe, and the second cavity (322) is communicated with the water outlet branch pipe (31).

6. The waste water residual heat recycling device according to claim 5, wherein the diversion filter screen (33) is arranged obliquely, and the aperture of the filter hole on the diversion filter screen (33) is smaller than the pipe diameter of the outlet branch pipe (31).

7. The wastewater waste heat recovery and reuse apparatus according to claim 5, characterized in that a volume of said first cavity (321) is larger than a volume of said second cavity (322).

8. The waste water waste heat recycling device according to claim 1, wherein the housing (1) comprises a first housing (12) and a second housing (13) connected to the first housing (12), a first installation cavity (121) is arranged in the first housing (12), a second installation cavity (131) is arranged in the second housing (13), the first installation cavity (121) and the second installation cavity (131) are communicated to define the cavity (11), the flow divider (3) is arranged in the first installation cavity (121), and the heat exchanger is arranged in the second installation cavity (131).

9. The waste water waste heat recycling device according to claim 8, characterized in that an insulating layer (14) is arranged in the second shell (13) and wraps the heat exchanger.

10. A heat exchange method using the apparatus for recovering and reusing waste water residual heat according to any one of claims 1 to 9, comprising the steps of;

the flow divider (3) is suitable for dividing part of waste water with heat in the heat supply water inlet main pipe into the water outlet branch pipes (31);

heat exchange is carried out, partial waste water with heat enters the overflowing channel (43) through the water outlet branch pipe (31), domestic water in the water inlet pipe enters the inner pipe (42), in the flowing process of the domestic water, the waste water in the overflowing channel (43) and the domestic water in the inner pipe (42) realize heat exchange, and the domestic water with heat flows into the water storage part (2);

and heat preservation, wherein water with heat flows in the overflowing channel (43) to preserve heat of the domestic water in the water storage part (2), and the domestic water with heat in the water storage part (2) flows out of the water outlet pipe.

Technical Field

The invention relates to the field of central heating, in particular to equipment and a method for recycling waste heat of wastewater.

Background

In winter in northern China, the central heating mode is usually adopted for heating, and the central heating mode is that water with heat is transferred to a radiator or a heating pipe of a user home by a central heat source through a heating water inlet main pipe.

However, in daily life, hot water is needed for bathing, dish washing and other life besides heating rooms, and the hot water for bathing and kitchen is usually generated by a solar water heater, a gas water heater or an electric water heater, which causes waste of resources.

Disclosure of Invention

The invention aims to provide equipment and a method for recycling waste water waste heat so as to reduce waste of resources.

The above object of the present invention can be achieved by the following technical solutions:

the invention provides a device for recycling waste water waste heat, which comprises:

the water storage device comprises a shell, wherein a cavity is formed in the shell, a water storage part is arranged in the cavity, and the water storage part is suitable for being communicated with a water outlet pipe;

the heat exchanger is arranged in the cavity at intervals, the heat exchanger is suitable for being arranged on a heat supply water inlet main pipe, and a water outlet branch pipe is arranged on the heat exchanger;

the heat exchanger comprises a heat exchange main pipe, the heat exchange main pipe surrounds the water storage part, the heat exchange main pipe comprises an outer pipe and an inner pipe arranged in the outer pipe, a flow passage is defined between the inner pipe and the outer pipe, the water inlet end of the flow passage is communicated with the water outlet branch pipe, the water outlet end of the flow passage is communicated with the heat supply water inlet main pipe, one end, close to the water outlet branch pipe, of the inner pipe is suitable for being communicated with a water inlet pipe, and the other end of the inner pipe is suitable for being communicated with the water storage part.

In some embodiments of the present invention, the heat exchanger further comprises a preheating pipe disposed in the cavity, the preheating pipe is disposed around the heat exchange main pipe, the water inlet pipe is communicated with the preheating pipe, and the preheating pipe is communicated with the inner pipe.

In some embodiments of the present invention, the flow passage has a plurality of connecting members therein, the connecting members are spaced apart along a length direction of the inner pipe, each connecting member includes a plurality of connecting rods spaced apart along a circumferential direction of the inner pipe, one end of each connecting rod is connected to the inner pipe, and the other end of each connecting rod is supported by the outer pipe.

In some embodiments of the present invention, a plurality of partition plates are disposed in the water storage member at intervals so as to form a bent thermal insulation flow passage in the water storage member, and a water inlet end of the thermal insulation flow passage is disposed close to the water inlet pipe.

In some embodiments of the present invention, a diversion cavity is disposed in the diverter, a diversion screen is disposed in the diversion cavity, the diversion screen divides the diversion cavity into a first cavity and a second cavity, the first cavity is communicated with the heat supply inlet header pipe, and the second cavity is communicated with the water outlet branch pipe.

In some embodiments of the present invention, the diversion filter screen is disposed obliquely, and the aperture of the filter hole on the diversion filter screen is smaller than the pipe diameter of the water outlet branch pipe.

In some embodiments of the invention, the volume of the first cavity is greater than the volume of the second cavity.

In some embodiments of the present invention, the housing includes a first housing and a second housing connected to the first housing, a first mounting cavity is disposed in the first housing, a second mounting cavity is disposed in the second housing, the first mounting cavity and the second mounting cavity are communicated to define the cavity, the flow divider is disposed in the first mounting cavity, and the heat exchanger is disposed in the second mounting cavity.

In some embodiments of the invention, an insulating layer is disposed within the second housing to surround the heat exchanger.

The invention also provides a heat exchange method of the waste water waste heat recovery and reuse equipment, which is characterized by comprising the following steps;

the flow divider is suitable for dividing part of waste water with heat in the heat supply water inlet main pipe into the water outlet branch pipes;

the heat exchange is carried out, partial waste water with heat enters the overflowing channel through the water outlet branch pipe, the domestic water in the water inlet pipe enters the inner pipe, the waste water in the overflowing channel and the domestic water in the inner pipe realize heat exchange in the flowing process of the domestic water, and the domestic water with heat flows into the water storage part;

and heat preservation, wherein water with heat flows in the overflowing channel to preserve heat of the domestic water in the water storage part, and the domestic water with heat in the water storage part flows out of the water outlet pipe.

The equipment for recycling the waste heat of the waste water has the characteristics and advantages that: the flow divider is arranged on the heat supply water inlet main pipe to divide part of water with heat in the heat supply water inlet main pipe into the water outlet branch pipes, and the part of water with heat enters the overflowing channel in the heat exchange main pipe through the water outlet branch pipes and flows back to the heat supply water inlet main pipe from the water outlet end of the overflowing channel.

Meanwhile, domestic water enters the inner pipe through the water inlet pipe, when the domestic water is not used, in the process that the water with heat flows in the overflowing channel, part of heat can be transferred to the domestic water in the inner pipe by the water with heat in the overflowing channel, the purpose of heating the domestic water in the inner pipe is achieved, and the heat exchange main pipe surrounds the water storage part, so that the water with heat in the overflowing channel can transfer part of heat to the domestic water in the water storage part in the flowing process, and the purpose of heat preservation of the domestic books in the water storage part is achieved.

When the domestic water is used, in the process that water with heat flows in the overflowing channel, the flowing domestic water in the pipe can exchange heat with the water with heat in the overflowing channel, so that the water with heat in the overflowing channel can transfer part of heat to the domestic water in the inner pipe, the aim of heating the domestic water in the inner pipe is fulfilled, the domestic water with heat in the inner pipe flows into the water storage part again and flows out of the water outlet pipe after being mixed with the domestic book with heat in the water storage part, the aim of heating the domestic water is fulfilled, the aim of heating the domestic water through equipment such as a solar water heater, a gas water heater or an electric water heater is reduced, and the waste of resources is reduced.

Drawings

In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings needed to be used in the description of the embodiments will be briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings based on these drawings without creative efforts.

FIG. 1 is a schematic perspective view of an apparatus for recycling waste heat from waste water according to an embodiment of the present invention;

FIG. 2 is a sectional view of an apparatus for waste heat recovery and reuse of wastewater according to an embodiment of the present invention;

FIG. 3 is an enlarged view of a portion of FIG. 2 at A;

FIG. 4 is a cross-sectional view of a heat exchange manifold according to an embodiment of the present invention;

FIG. 5 is a sectional view illustrating domestic water flowing in a heat-insulating flow passage of a water storage member according to an embodiment of the present invention;

fig. 6 is a schematic perspective view of a heat exchange header according to an embodiment of the present invention.

The reference numbers illustrate:

1. a housing; 11. a cavity; 12. a first housing; 121. a first mounting cavity; 13. a second housing; 131. a second mounting cavity; 14. a heat-insulating layer; 15. a third pipeline; 16. a fourth conduit;

2. a water storage member; 21. a partition plate; 22. a heat preservation runner;

3. a flow divider; 31. a water outlet branch pipe; 32. a shunting cavity; 321. a first cavity; 322. a second cavity; 33. a flow-dividing filter screen; 34. a first conduit; 35. a second conduit;

4. a heat exchange main pipe; 41. an outer tube; 42. an inner tube; 43. an overflow channel; 44. a connecting member; 441. a connecting rod; 45. a connecting pipe; 46. a return pipe;

5. and (4) preheating the tube.

Detailed Description

Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the accompanying drawings are illustrative only for the purpose of explaining the present invention, and are not to be construed as limiting the present invention.

In the description of the present invention, it is to be understood that the terms "center," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," "circumferential," and the like are used in the orientations and positional relationships indicated in the drawings for convenience in describing the present invention and to simplify the description, and are not intended to indicate or imply that the referenced devices or elements must have a particular orientation, be constructed and operated in a particular orientation, and are therefore not to be considered limiting of the present invention. Furthermore, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present invention, "a plurality" means two or more unless otherwise specified.

In the description of the present invention, it should be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.

As shown in fig. 1 to 6, the present invention provides an apparatus for recovering and reusing waste heat of wastewater, comprising: the water storage device comprises a shell 1, wherein a cavity 11 is arranged in the shell 1, a water storage part 2 is arranged in the cavity 11, and the water storage part 2 is suitable for being communicated with a water outlet pipe; the flow divider 3 and the heat exchanger are arranged in the cavity 11 at intervals, the flow divider 3 is suitable for being arranged on a heat supply water inlet main pipe, and a water outlet branch pipe 31 is arranged on the flow divider 3; the heat exchanger comprises a heat exchange header pipe 4, the heat exchange header pipe 4 surrounds the water storage part 2, the heat exchange header pipe 4 comprises an outer pipe 41 and an inner pipe 42 arranged in the outer pipe 41, a flow passage 43 is defined between the inner pipe 42 and the outer pipe 41, the water inlet end of the flow passage 43 is communicated with the water outlet branch pipe 31, the water outlet end of the flow passage 43 is communicated with the heat supply water inlet header pipe, one end, close to the water outlet branch pipe 31, of the inner pipe 42 is suitable for being communicated with a water inlet pipe, and the other end of the inner pipe 42 is suitable for being communicated with the water storage part 2.

It will be appreciated that by arranging the flow divider 3 on the heating water inlet manifold to divide the portion of the heated water in the heating water inlet manifold into the water outlet branch pipes 31, the portion of the heated water enters the flow-through channels 43 in the heat exchange manifold 4 through the water outlet branch pipes 31 and flows back into the heating water inlet manifold from the water outlet ends of the flow-through channels 43.

Meanwhile, domestic water enters the inner pipe 42 through the water inlet pipe, when the domestic water is not used, in the process that the water with heat flows in the overflowing channel 43, part of heat can be transferred to the domestic water in the inner pipe 42 by the water with heat in the overflowing channel 43, the domestic water in the inner pipe 42 is heated, and the heat exchange main pipe 4 surrounds the water storage part 2, so that the water with heat in the overflowing channel 43 can transfer part of heat to the domestic water in the water storage part 2 in the flowing process, and the purpose of heat preservation of domestic books in the water storage part 2 is achieved.

When the domestic water is used, in the process that water with heat flows in the overflowing channel 43, the flowing domestic water in the pipe can exchange heat with the water with heat in the overflowing channel 43, so that the water with heat in the overflowing channel 43 can transfer part of heat to the domestic water in the inner pipe 42, the domestic water in the inner pipe 42 is heated, the domestic water with heat in the inner pipe 42 flows into the water storage part 2 again and flows out of the water outlet pipe after being mixed with the domestic book with heat in the water storage part 2, the domestic water is heated, the aim of heating the domestic water through solar water heaters, gas water heaters or electric water heaters is fulfilled, the aim of heating the domestic water through solar water heaters, gas water heaters or electric water heaters and other devices is fulfilled, and waste of resources is reduced.

It should be noted that, because the flow divider 3 only flows out moisture with heat from the interior of the heat supply water inlet main, most of the water with heat in the heat supply water inlet main can be delivered to the radiator or the heating pipe, so as to realize the effect of supplying heat to the indoor space. And because the water with heat in the heat supply water inlet main pipe needs to continuously flow in the pipeline, the water with heat contains more impurities, the water with heat forms waste water which cannot be directly used, and then the domestic water is heated by the heat in the waste water in a heat exchange mode, so that the aim of heating the domestic water by a solar water heater, a gas water heater or an electric water heater is reduced, and the utilization rate of resources is improved.

It should be noted that the temperature of the water with heat in the heat supply and water inlet main pipe is between 40 and 60 ℃, so that the temperature of the domestic water in the water storage part 2 can reach between 30 and 45 ℃ in the heat exchange process in the heat exchanger, thereby meeting the needs of life (bathing or kitchen water, etc.).

In some embodiments, the heat exchange manifold 4 is substantially spiral, so as to extend the length of the flow channel 43, ensure the heat exchange efficiency, and improve the resource utilization rate.

In some embodiments of the present invention, the present invention further comprises a preheating pipe 5 disposed in the cavity 11, the preheating pipe 5 is disposed around the heat exchange header 4, the water inlet pipe is communicated with the preheating pipe 5, and the preheating pipe 5 is communicated with the inner pipe 42.

It can be understood that, through setting up the preheating pipe 5 in the outside of heat transfer house steward 4, when not using domestic water, the in-process that has thermal water and flow in overflowing passageway 43, it has thermal water to preheat the domestic water in preheating pipe 5 earlier to overflow the passageway 43, thereby when needs use domestic water, domestic water after preheating in the preheating pipe 5 gets into the inner tube 42 again and overflows the passageway 43 in and have thermal water and carry out the heat transfer, thereby improve heat transfer heat exchange effect, improve the utilization ratio of resource.

In some embodiments of the present invention, the flow passage 43 has a plurality of connecting members 44 therein, the connecting members 44 are spaced apart along the length direction of the inner pipe 42, each connecting member 44 includes a plurality of connecting rods 441 spaced apart along the circumference of the inner pipe 42, one end of each connecting rod 441 is connected to the inner pipe 42, and the other end of each connecting rod 441 is supported by the outer pipe 41. It can be understood that the inner tube 42 is supported in the outer tube 41 by a plurality of connecting rods 441, thereby facilitating the fixation of the inner tube 42 and enabling the flow passage 43 to wrap the inner tube 42, ensuring the heat exchange effect.

In some embodiments of the present invention, a plurality of partition plates 21 are disposed in the water storage member 2 at intervals so as to form a bent thermal insulation flow passage 22 in the water storage member 2, and a water inlet end of the thermal insulation flow passage 22 is disposed close to the water inlet pipe. It can be understood that a plurality of partition plates 21 are arranged in the water storage part 2, so that the heat preservation flow channel 22 is substantially S-shaped, the length of the heat preservation flow channel 22 is prolonged, heat exchange between domestic water and water with heat in the overflowing channel 43 can be fully carried out in the flowing process of the domestic water in the heat preservation flow channel 22, and the heat exchange effect is improved.

In some embodiments, three partition plates 21 are disposed in the water storage member 2 at intervals in the height direction, so that the length of a part of the heat-insulating flow passage 22 is ensured, thereby ensuring the heat exchange effect.

In some embodiments, the two ends of the inner tube 42 are respectively provided with connecting pipes 45 extending out of the heat exchange header 4, and the two connecting pipes 45 are communicated with the preheating pipe 5 and the water inlet end of the heat preservation flow passage 22 in a one-to-one correspondence manner, so that the two ends of the inner tube 42 are respectively communicated with the preheating pipe 5 and the water storage member 2.

In some embodiments of the present invention, a diversion cavity 32 is formed in the diverter 3, a diversion screen 33 is formed in the diversion cavity 32, the diversion screen 33 divides the diversion cavity 32 into a first cavity 321 and a second cavity 322, the first cavity 321 is communicated with the heat supply water inlet main pipe, and the second cavity 322 is communicated with the water outlet branch pipe 31.

It can be understood that the diversion cavity 32 is divided by the diversion filter screen 33, so that the water with heat entering the diversion cavity 32 is diverted, a part of the water with heat flows into the radiator or the radiator pipe through the first cavity 321 to supply heat to the indoor, and the other part of the water with heat enters the water outlet branch pipe 31 through the second cavity 322 to exchange heat with domestic water, thereby improving the utilization rate of resources.

In some embodiments of the present invention, the diversion filter 33 is disposed obliquely, and the aperture of the filter hole on the diversion filter 33 is smaller than the pipe diameter of the water outlet branch pipe 31. It can be understood that, by making the aperture of the filtering hole on the diversion filter net 33 smaller, the water with heat entering the water outlet branch pipe 31 can be filtered, the blocking of the overflowing channel 43 by the impurities of the water with heat is avoided, and the fluidity of the water in the overflowing channel 43 is ensured.

Meanwhile, through the inclined arrangement of the shunting filter screen 33, even if part of impurities are blocked in part of the filtering holes of the shunting filter screen 33, the shunting filter screen 33 can be continuously flushed by the water with heat in the process of flowing in the first cavity 321, so that the impurities in the filtering holes are taken away, and the circulation of the shunting filter screen 33 is ensured.

In some embodiments of the present invention, the volume of the first cavity 321 is greater than the volume of the second cavity 322. It can be understood that by making the first cavity 321, which is in communication with the heating water inlet manifold, larger, it is ensured that most of the water with heat flowing through the flow divider 3 can flow out through the first cavity 321, and the flow rate of the water flowing into the radiator or the heating pipe is ensured, thereby reducing the influence of the diversion of part of the water with heat on the indoor temperature.

In some embodiments of the present invention, the housing 1 includes a first housing 12 and a second housing 13 connected to the first housing 12, a first installation cavity 121 is disposed in the first housing 12, a second installation cavity 131 is disposed in the second housing 13, the first installation cavity 121 and the second installation cavity 131 are communicated to define the cavity 11, the flow divider 3 is disposed in the first installation cavity 121, and the heat exchanger is disposed in the second installation cavity 131.

It can be understood that by placing the flow divider 3 in the first installation cavity 121 of the first housing 12 and the heat exchanger and the heat exchange manifold 4 in the second installation cavity 131 of the second housing 13, the flow divider 3, the heat exchanger and the heat exchange manifold 4 can be separately overhauled, thereby improving the maintenance efficiency.

In some embodiments, the flow divider 3 is provided with a first pipe 34 and a second pipe 35, one end of the first pipe 34 is communicated with the water inlet end of the first cavity 321, the other end of the first pipe 34 is communicated with the heat supply water inlet main pipe, one end of the second pipe 35 is communicated with the water outlet end of the first cavity 321, and the other end of the second pipe 35 is communicated with the heat supply water inlet main pipe, so that the flow divider 3 can be conveniently installed on the heat supply water inlet main pipe, and the installation process is simplified.

It should be noted that, when the device for recycling waste water waste heat according to the present invention is installed, the whole portion of the heat supply and water inlet main pipe of the portion to be installed may be cut off, and then the first pipe 34 and the second pipe 35 may be installed at two ends of the cut heat supply and water inlet main pipe, respectively, so that the installation of the device according to the present invention at a later stage is simpler.

In some embodiments, the outlet end of the transfer channel 43 communicates with the second conduit 35 via a return conduit 46, thereby allowing water flowing from the transfer channel 43 to return to the heating intake manifold.

In some embodiments, the second housing 13 is provided with a third pipeline 15 and a fourth pipeline 16, one end of the third pipeline 15 is communicated with the water inlet pipe, the other end of the third pipeline 15 is communicated with the preheating pipe 5, one end of the fourth pipeline 16 is communicated with the water outlet pipe, and the other end of the fourth pipeline 16 is communicated with the water storage member 2, so that domestic water can flow in the apparatus of the present invention.

In some embodiments of the invention, an insulating layer 14 is provided inside the second housing 13 to surround the heat exchanger. It can be understood that the heat preservation layer 14 is arranged on the inner surface of the second shell 13, so that the water storage part 2 and the heat exchange header pipe 4 in the second installation cavity 131 are preserved heat, the loss of heat is avoided, and the heat preservation effect is improved.

In some embodiments, the insulating layer 14 may be insulating material such as insulating cotton, heat insulation cotton, and the form of the insulating layer 14 may be limited according to actual use conditions as long as the second installation cavity 131 can be insulated, which is not limited herein.

The invention also provides a heat exchange method of the waste water waste heat recovery and reuse equipment, which is characterized by comprising the following steps;

the flow divider 3 is suitable for dividing part of waste water with heat in the heating water inlet main pipe into the water outlet branch pipes 31;

heat exchange is carried out, partial waste water with heat enters the overflowing channel 43 through the water outlet branch pipe 31, domestic water in the water inlet pipe enters the inner pipe 42, heat exchange is carried out between the waste water in the overflowing channel 43 and the domestic water in the inner pipe 42 in the flowing process of the domestic water, and the domestic water with heat flows into the water storage part 2;

and (3) heat preservation, wherein water with heat flows in the overflowing channel 43 to preserve heat of the domestic water in the water storage part 2, and the domestic water with heat in the water storage part 2 flows out of the water outlet pipe.

According to the heat exchange method of the embodiment of the invention, the flow divider 3 is arranged on the heat supply water inlet main pipe to divide part of the water with heat in the heat supply water inlet main pipe into the water outlet branch pipes 31, and the part of the water with heat enters the overflowing channels 43 in the heat exchange main pipe 4 through the water outlet branch pipes 31 and flows back to the heat supply water inlet main pipe from the water outlet ends of the overflowing channels 43.

Meanwhile, domestic water enters the inner pipe 42 through the water inlet pipe, when the domestic water is not used, in the process that the water with heat flows in the overflowing channel 43, part of heat can be transferred to the domestic water in the inner pipe 42 by the water with heat in the overflowing channel 43, the domestic water in the inner pipe 42 is heated, and the heat exchange main pipe 4 surrounds the water storage part 2, so that the water with heat in the overflowing channel 43 can transfer part of heat to the domestic water in the water storage part 2 in the flowing process, and the purpose of heat preservation of domestic books in the water storage part 2 is achieved.

When the domestic water is used, in the process that water with heat flows in the overflowing channel 43, the flowing domestic water in the pipe can exchange heat with the water with heat in the overflowing channel 43, so that the water with heat in the overflowing channel 43 can transfer part of heat to the domestic water in the inner pipe 42, the domestic water in the inner pipe 42 is heated, the domestic water with heat in the inner pipe 42 flows into the water storage part 2 again and flows out of the water outlet pipe after being mixed with the domestic book with heat in the water storage part 2, the domestic water is heated, the aim of heating the domestic water through solar water heaters, gas water heaters or electric water heaters is fulfilled, the aim of heating the domestic water through solar water heaters, gas water heaters or electric water heaters and other devices is fulfilled, and waste of resources is reduced.

In the description herein, references to the description of the term "one embodiment," "some embodiments," "an illustrative embodiment," "an example," "a specific example," or "some examples" or the like mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, the schematic representations of the terms used above do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

While embodiments of the invention have been shown and described, it will be understood by those of ordinary skill in the art that: various changes, modifications, substitutions and alterations can be made to the embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the claims and their equivalents.