CN218410812U - Household shower energy saver - Google Patents

Abstract

The application discloses a household shower energy saver, which comprises an energy-saving water tank and a water receiving tray, wherein the water receiving tray is covered above the energy-saving water tank; the energy-saving water tank is of an open shell structure with an inner cavity, a plurality of guide plates are arranged on the bottom wall of the inner cavity at intervals, and the inner cavity is divided into S-shaped flow channels by the plurality of guide plates; the heat exchange structure comprises an S-shaped heat exchange water pipe, the S-shaped heat exchange water pipe is arranged in the S-shaped flow passage, one end of the heat exchange water pipe forms a cold water inlet end connected with a tap water pipe, and the other end of the heat exchange water pipe forms a warm water outlet end connected with a water inlet pipe of the water heater; a sewage discharge port is arranged above a cold water inlet port on the side wall of the energy-saving water tank, a water receiving tank is formed on the water receiving tray, and a water leakage hole is formed in the bottom wall of the water receiving tank. The application provides a family shower energy-saving appliance can collect the heat of the useless hot water of family's shower in-process and utilize, preheats the cold water that flows into among the heating device through retrieving the drainage heat, can practice thrift electric energy or fuel.

Description

Household shower energy saver

Technical Field

The application relates to the technical field of household energy-saving equipment, in particular to a household shower energy saver.

Background

The shower is a device which is commonly used in daily life, and along with the general improvement of the living standard of people, the requirement of people on sanitation and cleanness is higher and higher, so that the shower is more and more popularized as a common cleaning device, the shower saves water and space compared with the bath using a bathtub, and the shower is more in line with the environmental protection concept.

The energy required for heating the shower can be electric energy, gas or solar energy. The high frequency of shower use, however heated, can have a significant cumulative effect even if little energy is wasted. Therefore, energy saving is very important for the use of a shower, and even if solar energy is used, although energy cost is low, since the volume of the shower is limited, that is, the amount of hot water generated is limited, the use efficiency of the limited amount of hot water can be improved by saving energy, thereby providing more convenience to life.

While cold water is commonly used in summer showers, hot or warm water is commonly used in winter showers. The inventor has recognized that in the current shower process, all the hot water or warm water used in the shower process is directly discharged into a sewer without any utilization, thereby wasting the heat carried by the shower drainage and wasting energy.

Although there are some applications of recycling shower water, most of the shower water is used in daily household scenes such as flushing a toilet, mopping a floor and the like, only the waste water is recycled, and the heat in the waste water is not recycled. The inventors believe that electrical energy or fuel can be saved if the heat of the drain can be recovered to preheat the cold water flowing into the heating device (e.g., a water heater, etc.). On the basis, in order to solve the problem that shower drainage in the prior art carries heat waste, the inventor provides a household shower energy saver.

SUMMERY OF THE UTILITY MODEL

The application provides a family shower energy-saving appliance to solve the problem that shower drainage carries the waste of heat at present stage. In order to collect and utilize the heat of the waste hot water in the household shower process so as to achieve the purpose of saving energy, the application provides the following technical scheme:

the application provides a household shower energy saver, which comprises an energy-saving water tank and a water receiving tray, wherein the water receiving tray is covered above the energy-saving water tank;

the energy-saving water tank is of an open shell structure with an inner cavity, a plurality of guide plates are arranged on the bottom wall of the inner cavity at intervals, and the inner cavity is divided into S-shaped flow channels by the plurality of guide plates; the heat exchange structure comprises an S-shaped heat exchange water pipe, the heat exchange water pipe is arranged in an S-shaped flow passage, one end of the heat exchange water pipe is a cold water inlet end, the other end of the heat exchange water pipe is a warm water outlet end, the cold water inlet end penetrates through the side wall of the energy-saving water tank and is connected with a tap water pipe, and the warm water outlet end penetrates through the side wall of the energy-saving water tank and is connected with a water inlet pipe of the water heater; a sewage outlet is arranged on the side wall of the energy-saving water tank and is arranged above the cold water inlet end;

the uncovered department adaptation of water collector and energy-conserving water tank links to each other, be formed with the water receiving tank on the water collector, be provided with the hole that leaks on the diapire of water receiving tank, the hole that leaks is located the edge of water receiving tank, and is close to the warm water exit end.

Above-mentioned technical scheme is further, the inner chamber is the cuboid form, the inner chamber has first lateral wall and the second lateral wall that sets up with first lateral wall is relative, the length extending direction of first lateral wall and second lateral wall is unanimous with the length direction of inner chamber.

Furthermore, the guide plates are of elongated plate-shaped structures, the guide plates are arranged in parallel along the length direction of the inner cavity at intervals, and the guide plates are perpendicular to the first side wall; one end of one guide plate is connected with the first side wall, the other end of the guide plate forms a space with the second side wall, one end of the other guide plate adjacent to the guide plate is connected with the second side wall, and the other end of the other guide plate forms a space with the first side wall.

Furthermore, the interval between the end part of the guide plate and the side wall of the inner cavity and the interval between two adjacent guide plates form an S-shaped flow channel together.

Furthermore, the S-shaped heat exchange water pipe comprises a plurality of main pipes, and each main pipe is connected with a plurality of branch pipes; the interval department between guide plate tip and the inner chamber lateral wall is provided with the house steward, and the parallel interval in interval department between two adjacent guide plates is provided with a plurality ofly the branch pipe, the length direction of branch pipe is parallel with the face of guide plate, the branch pipe with house steward intercommunication.

Furthermore, the inner cavity is provided with a third side wall and a fourth side wall opposite to the third side wall, and the third side wall is vertical to the first side wall; the second side wall is provided with an outlet mounting hole corresponding to the warm water outlet end, the outlet mounting hole is positioned between the third side wall and a guide plate parallel to the third side wall at an interval, and one end of the guide plate opposite to the third side wall is connected with the second side wall; the water leakage hole is positioned between the third side wall and a guide plate which is parallel to the third side wall and arranged at an interval, and the water leakage hole is close to the second side wall.

Further, an inlet mounting hole corresponding to the cold water inlet end is formed in the second side wall or the first side wall, and the inlet mounting hole is located between the fourth side wall and a guide plate parallel to the fourth side wall and arranged at an interval; the sewage discharge port is arranged above the inlet mounting hole.

Furthermore, a sealing ring is arranged in the outlet mounting hole, and a warm water outlet end of the heat exchange water pipe is connected with the sealing ring in a matching manner; and a sealing ring is arranged in the inlet mounting hole, and a cold water inlet end of the heat exchange water pipe is connected with the sealing ring in a matching way.

Furthermore, a drain pipe is arranged at the sewage discharge port and is connected with the sewage collecting device.

Furthermore, the water pan is a rectangular plate-shaped structural member and is detachably connected with the energy-saving water tank; one or more water leakage holes are formed in the water receiving tray.

Furthermore, shower sewage in the shower process flows into the water receiving tank, flows into the energy-saving water tank from the water leakage hole on the water receiving tank, flows along the S-shaped flow channel in the energy-saving water tank, cold water entering the S-shaped heat exchange water pipe flows along the heat exchange water pipe, and the flowing direction of the sewage is opposite to that of the cold water in the heat exchange water pipe; the cold water entering the S-shaped heat exchange water pipe exchanges heat with the sewage in the S-shaped flow passage.

Compared with the prior art, the method has the following beneficial effects:

1. the application provides a family shower energy-saving appliance includes water collector and energy-conserving water tank, set up the heat transfer water pipe in the energy-conserving water tank, the water collector can be retrieved shower drainage to the energy-conserving water tank in, and the heat transfer water pipe that sets up in the energy-conserving water tank can take place heat exchange with shower drainage, promote the uniform temperature with cold water in the heat transfer water pipe, become the cold water heat transfer and send to the water heater after the warm water in, the heating loss of reducible water heater, thereby reach energy saving's purpose, and the sewage of accomplishing the heat transfer can be arranged to the dirty device of collection from sewage discharge, realize the reutilization of water. The application provides an among the family shower energy-saving appliance, the heat transfer water pipe is the S-shaped, runner in the energy-conserving water tank is also separated into the S-shaped by the guide plate, through the cold water entrance point of the hole that leaks on the water collector and heat transfer water pipe and the position design of warm water exit end, realize that the flow direction of sewage is reverse to be travel with the flow direction of the running water in the heat transfer water pipe in the runner, raise the heat exchange efficiency in the energy-conserving water tank on the at utmost, make the temperature of the cold water in the heat transfer water pipe rise. Furthermore, the sewage discharge port is arranged above the cold water inlet end, so that water can be stored in the energy-saving water tank, the temperature in the energy-saving water tank is higher after water storage, heat in shower water is greatly recovered, and the heat recovery efficiency is improved.

2. The application provides a heat transfer water pipe of family shower energy-saving appliance' S S-shaped includes a plurality of house steward, is connected with a plurality of branch pipes on every house steward, with cold moisture in a plurality of branch pipes, can promote the area of contact of cold water and shower sewage in the heat transfer water pipe, improves heat recovery efficiency.

3. The application provides a family shower energy-saving appliance water collector can dismantle with energy-conserving water tank and be connected, easy access, cleanness, and it is domestic more convenient.

Drawings

In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings needed to be used in the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present application, and it is obvious for those skilled in the art to obtain other drawings based on these drawings without creative efforts. It should be understood that the specific shapes, configurations and illustrations in the drawings are not to be construed as limiting, in general, the practice of the present application; for example, it is within the ability of those skilled in the art to make routine adjustments or further optimization of the add/drop/attribute division, specific shapes, positional relationships, connection manners, size ratios, etc. of certain elements (components) based on the technical concepts disclosed in the present application and the exemplary drawings.

Fig. 1 is a schematic perspective view of a household shower energy saver provided by the present application from one perspective view according to an embodiment;

fig. 2 is a schematic perspective view of a water pan of a household shower energy saver provided by the present application at a viewing angle in an embodiment;

fig. 3 is a schematic perspective view of a residual structure of a household shower energy saver provided by the present application after a water pan is removed in an embodiment at a viewing angle;

FIG. 4 is a schematic top view of the structure of FIG. 3;

FIG. 5 is a schematic plan view of the remaining structure of the economizer tank with the heat exchange structure removed from the economizer tank, taken from FIG. 3, from a top view;

FIG. 6 is a schematic view of the flow direction of the sewage in the energy-saving water tank of the household shower economizer provided by the present application along the flow channel in one embodiment;

FIG. 7 is a schematic view showing the flowing direction of the tap water in the heat exchange water pipe of the household shower economizer provided in the present application in one embodiment;

fig. 8 is a schematic perspective view of the remaining structure of the energy-saving water tank from one perspective after further removing the heat exchange structure based on fig. 3.

Description of reference numerals:

1. an energy-saving water tank; 11. an inner cavity; 111. a first side wall; 112. a second side wall; 113. a third side wall; 114. a fourth side wall; 12. a baffle; 13. a flow channel; 14. a sewage discharge port; 15. an outlet mounting hole; 16. an inlet mounting hole;

2. a water pan; 21. a water receiving tank; 22. a water leakage hole;

3. a heat exchange water pipe; 31. a cold water inlet end; 32. a warm water outlet end; 33. a header pipe; 34. a branch pipe;

A. the flow direction of the sewage; B. the flow direction of water in the heat exchange water pipe.

Detailed Description

The present application will be described in further detail below with reference to specific embodiments thereof, with reference to the accompanying drawings.

In the description of the present application: "plurality" means two or more unless otherwise specified. The terms "first", "second", "third", and the like in this application are intended to distinguish the referenced objects without particular meaning in the technical meaning (e.g., emphasis on degree or order of importance, etc.) being construed). The terms "comprising," "including," "having," and the like, are intended to be inclusive and mean "not limited to" (some elements, components, materials, steps, etc.).

In the present application, terms such as "upper", "lower", "left", "right", "middle", and the like are generally used for easy visual understanding with reference to the drawings, and are not intended to absolutely limit the positional relationship in an actual product. Changes in these relative positional relationships without departing from the technical concepts disclosed in the present application should also be considered as the scope of the present application.

In order to solve the problems existing in the prior art, the application provides a family shower energy saver. Referring to fig. 1 to 3, the household shower energy saver comprises an energy-saving water tank and a water receiving tray covered above the energy-saving water tank, wherein a heat exchange structure is arranged in the energy-saving water tank.

The inventor realizes that the sewage flowing down in the shower process is warm water with certain heat, and heat exchange can be carried out. On the basis, the inventor proposes that warm water flowing down in the shower process is received by the water receiving disc, and then the warm water exchanges heat with cold water for shower, so as to realize energy conservation. The structural principle and the using method of the household shower energy saver provided by the application are explained in detail below.

Referring to fig. 3 and 5, the energy-saving water tank 1 is an open shell structure having an inner cavity 11, a plurality of guide plates 12 are arranged on the bottom wall of the inner cavity 11 at intervals, and the inner cavity 11 is divided into S-shaped flow passages 13 by the plurality of guide plates 12; the heat exchange structure comprises an S-shaped heat exchange water pipe 3, the heat exchange water pipe 3 is arranged in an S-shaped flow channel 13, one end of the heat exchange water pipe 3 is a cold water inlet end 31, the other end of the heat exchange water pipe is a warm water outlet end 32, the cold water inlet end 31 penetrates through the side wall of the energy-saving water tank 1 and is connected with a tap water pipe, and the warm water outlet end 32 penetrates through the side wall of the energy-saving water tank 1 and is connected with a water inlet pipe of a water heater; the side wall of the energy-saving water tank 1 is provided with a sewage outlet 14, and the sewage outlet 14 is arranged above the cold water inlet end 31. The water receiving tray 2 is connected with the open part of the energy-saving water tank 1 in an adaptive manner, a water receiving tank 21 is formed on the water receiving tray 2, a water leakage hole 22 is formed in the bottom wall of the water receiving tank 21, and the water leakage hole 22 is located at the edge of the water receiving tank 21 and is close to the warm water outlet end 32.

Can place the family shower energy-saving appliance that this application provided subaerial at the bathroom, put water collector 2 in shower nozzle's below, when bathing, the user station is on water collector 2, and the warm water that flows down when bathing gets into energy-conserving water tank 1 through the hole 22 that leaks on the water collector 2 for with the heat transfer water pipe 3 heat transfer. In order to achieve stable support, the household shower energy saver can be made of stainless steel plates. The water pan can be provided with pedals for convenient use. The inventor tests that the waste water discharged during showering is almost 40 ℃, and the temperature of the sewage discharged after heat exchange is finished by the household shower energy saver provided by the application is 13-15 ℃.

In an embodiment, referring to fig. 5 and 8, the inner cavity 11 of the energy-saving water tank 1 is rectangular, and the inner cavity 11 has a first sidewall 111 and a second sidewall 112 opposite to the first sidewall 111, and further has a third sidewall 113 and a fourth sidewall 114 opposite to the third sidewall 113. The first and second sidewalls 111 and 112 extend lengthwise in the same direction as the inner cavity 11, and the third sidewall 113 is perpendicular to the first sidewall 111.

The guide plates 12 are in a strip-shaped plate-shaped structure, the guide plates 12 are arranged in parallel along the length direction of the inner cavity 11 at intervals, and the guide plates 12 are perpendicular to the first side wall 111; one of the baffles 12 has one end connected to the first sidewall 111 and the other end spaced from the second sidewall 112, and the other baffle 12 adjacent thereto has one end connected to the second sidewall 112 and the other end spaced from the first sidewall 111. The space between the end of the guide plate 12 and the side wall of the inner cavity 11 and the space between two adjacent guide plates 12 together form an S-shaped flow channel 13. Of course, the spacing between the baffle 12 and the opposite side wall of the interior 11 also forms part of the S-shaped flow channel 13. The S-shaped heat exchange water pipe 3 is arranged along the S-shaped flow passage 13.

In one embodiment, referring to fig. 8, the second side wall 112 is provided with an outlet mounting hole 15 corresponding to the warm water outlet end 32, the outlet mounting hole 15 is located between the third side wall 113 and one of the baffles 12 parallel to and spaced apart from the third side wall 113, and one end of the baffle 12 opposite to the third side wall 113 is connected to the second side wall 112. Referring to fig. 8 and 1, the water leakage hole 22 is located between the third side wall 113 and one of the guide plates 12 arranged in parallel and spaced apart, and the water leakage hole 22 is close to the second side wall 112.

The second side wall 112 or the first side wall 111 is provided with an inlet mounting hole 16 corresponding to the cold water inlet end 31, and the inlet mounting hole 16 is positioned between the fourth side wall 114 and one guide plate 12 arranged in parallel with the fourth side wall at an interval; the sewage discharge port is provided above the inlet mounting hole 16.

When the energy-saving water tank is used, shower sewage in a shower process flows into the water receiving tank 21, and flows into the energy-saving water tank 1 from the water leakage holes 22 on the water receiving tank 21, referring to fig. 6, the sewage flows along the S-shaped flow channel 13 in the energy-saving water tank 1, referring to fig. 7 correspondingly, cold water entering the S-shaped heat exchange water pipe 3 flows along the heat exchange water pipe 3, comparing fig. 6 and 7, the flowing direction A of the sewage is opposite to the flowing direction B of the cold water in the heat exchange water pipe 3, the two water channels run reversely, and the cold water entering the S-shaped heat exchange water pipe 3 exchanges heat with the sewage in the S-shaped flow channel 13.

By last can know, the shower energy-saving appliance of family that this application provided includes water collector 2 and energy-conserving water tank 1, set up heat transfer water pipe 3 in the energy-conserving water tank 1, water collector 2 can retrieve the shower drainage to energy-conserving water tank 1 in, and the heat transfer water pipe 3 that sets up in energy-conserving water tank 1 can take place the heat exchange with the shower drainage, promote the uniform temperature with the cold water in the heat transfer water pipe 3, become the cold water heat transfer and send to the water heater behind the warm water in, the heating loss of reducible water heater, thereby reach the purpose of energy saving, and the sewage of accomplishing the heat transfer can be arranged to the dirt collecting device from sewage drainage water, realize the reutilization of water. The application provides an among the family shower energy-saving appliance, heat transfer water pipe 3 is the S-shaped, runner 13 among the energy-saving water tank 1 is also separated into the S-shaped by guide plate 12, cold water entrance point 31 and the warm water exit end 32' S of hole 22 and heat transfer water pipe 3 that leak through on the water collector 2 position design, realize that the flow direction of sewage is reverse to be gone with the flow direction of the running water among the heat transfer water pipe 3 in the runner 13, promote the heat exchange efficiency in the energy-saving water tank 1 in the at utmost, the temperature of the cold water that makes among the heat transfer water pipe 3 risees. Further, the sewage outlet 14 is arranged above the cold water inlet end 31, so that water can be stored in the energy-saving water tank 1, the temperature in the energy-saving water tank 1 is higher after water is stored, a large amount of heat in shower water is recovered, and the heat recovery efficiency is improved.

The inventor calculates the heat exchange effect of the household shower energy saver provided by the application: the temperature of intaking of original water heater is 10 ℃, uses the family shower energy-saving appliance that this application provided to carry out the heat transfer back to the water that gets into the water heater, and the temperature that sends into the water heater water inlet can rise to 30 ℃ to 32 ℃. The water temperature of common bath water is 42 ℃, when the household shower energy saver provided by the application is not used, the water heater needs to heat water with the temperature of 10 ℃ to 42 ℃, and after the household shower energy saver provided by the application is used, the water heater only needs to heat water with the temperature of 30-32 ℃ to 42 ℃, so that the heating energy loss is greatly reduced, and the household shower energy saver is beneficial to energy conservation and environmental protection.

In one embodiment, referring to fig. 2, the water pan 2 is a rectangular disk-shaped structural member, and the water pan 2 is detachably connected with the energy-saving water tank 1; one or more water leakage holes 22 are arranged on the water pan 2. The water receiving tray 2 can be connected with the energy-saving water tank 1 in a buckling mode, and can also be connected with the side wall of the energy-saving water tank 1 in a rotating mode. The water receiving tray 2 and the energy-saving water tank 1 are detachably connected, so that a user can clean the water tank conveniently and overhaul the water tank conveniently. When the water pan 2 is fastened on the energy-saving water tank 1, if the edge of the water pan 2 blocks the sewage outlet 14 on the energy-saving water tank 1, a through hole corresponding to the sewage outlet 14 can be formed in the water pan 2, so that the sewage after heat exchange can be discharged smoothly.

In one embodiment, referring to fig. 4 and 7, the s-shaped heat exchange water tube 3 comprises a plurality of main tubes 33, each main tube 33 having a plurality of branch tubes 34 connected thereto; a main pipe 33 is arranged at the interval between the end part of each guide plate 12 and the side wall of the inner cavity 11, a plurality of branch pipes 34 are arranged at the interval between two adjacent guide plates 12 at intervals in parallel, the length direction of each branch pipe 34 is parallel to the plate surface of each guide plate 12, and each branch pipe 34 is communicated with the main pipe 33. The application provides a family shower economizer' S every house steward 33 of S-shaped heat transfer water pipe 3 go up to be connected with a plurality of branch pipes 34, with cold moisture in a plurality of branch pipes 34, can promote the area of contact of cold water and shower sewage in the heat transfer water pipe 3, improves heat recovery efficiency.

In one embodiment, a sealing ring is arranged in the outlet mounting hole 15, and the warm water outlet end 32 of the heat exchange water pipe 3 is connected with the sealing ring in a matching way; a sealing ring is arranged in the inlet mounting hole 16, and a cold water inlet end 31 of the heat exchange water pipe 3 is connected with the sealing ring in a matching way.

In one embodiment, the waste water outlet is provided with a drain pipe connected to a waste collection device, and the shower waste water after heat exchange can be collected in the waste collection device for domestic use, such as mopping or flushing a toilet.

To sum up, the family shower energy-saving appliance that this application provided can collect the heat of the shower waste hot water of family's shower in-process and utilize, preheats the cold water that flows into among the heating device through retrieving the drainage heat, can practice thrift electric energy or fuel, has also solved the not enough problem of domestic water heater hot water total amount simultaneously. The application provides a family shower energy-saving appliance has realized through structural design that the flow direction of sewage in the runner is reverse to travel with the flow direction of the running water in the heat transfer water pipe, promotes the heat exchange efficiency in the energy-conserving water tank on the at utmost. The application provides a family shower energy-saving appliance simple structure, and the heat recovery principle is simple and clear effective, also is convenient for the user independently to install and use as domestic economizer. The detachable connection design of the water pan and the energy-saving water tank is convenient for cleaning and maintenance.

All the technical features of the above embodiments can be arbitrarily combined (as long as there is no contradiction between the combinations of the technical features), and for brevity of description, all the possible combinations of the technical features in the above embodiments are not described; these examples, which are not explicitly described, should be considered to be within the scope of the present description.

The present application has been described in considerable detail with reference to certain embodiments and examples thereof. It should be understood that several conventional adaptations or further innovations of these specific embodiments may also be made based on the technical idea of the present application; however, such conventional modifications and further innovations can also fall into the scope of the claims of the present application as long as they do not depart from the technical idea of the present application.

Claims (8)

1. A family shower energy saver is characterized by comprising an energy-saving water tank and a water receiving tray covered above the energy-saving water tank, wherein a heat exchange structure is arranged in the energy-saving water tank;

the energy-saving water tank is of an open shell structure with an inner cavity, a plurality of guide plates are arranged on the bottom wall of the inner cavity at intervals, and the inner cavity is divided into S-shaped flow channels by the plurality of guide plates; the heat exchange structure comprises an S-shaped heat exchange water pipe, the heat exchange water pipe is arranged in an S-shaped flow passage, one end of the heat exchange water pipe is a cold water inlet end, the other end of the heat exchange water pipe is a warm water outlet end, the cold water inlet end penetrates through the side wall of the energy-saving water tank and is connected with a tap water pipe, and the warm water outlet end penetrates through the side wall of the energy-saving water tank and is connected with a water inlet pipe of the water heater; a sewage outlet is arranged on the side wall of the energy-saving water tank and is arranged above the cold water inlet end;

the water receiving tray is connected with the adaptation of the opening of the energy-saving water tank, a water receiving groove is formed in the water receiving tray, a water leakage hole is formed in the bottom wall of the water receiving groove, and the water leakage hole is located at the edge of the water receiving groove and close to the warm water outlet end.

2. A home shower energy saver according to claim 1 wherein the inner chamber is rectangular parallelepiped, the inner chamber having a first side wall and a second side wall opposite the first side wall, the first and second side walls having a length extending in a direction corresponding to the length of the inner chamber;

the guide plates are of strip-shaped plate structures, the guide plates are arranged in parallel along the length direction of the inner cavity at intervals, and the guide plates are perpendicular to the first side wall; one end of one guide plate is connected with the first side wall, the other end of the guide plate forms a space with the second side wall, one end of the other adjacent guide plate is connected with the second side wall, and the other end of the other adjacent guide plate forms a space with the first side wall;

the interval between the end part of the guide plate and the side wall of the inner cavity and the interval between two adjacent guide plates form an S-shaped flow channel together.

3. A home shower economizer as claimed in claim 2 wherein the S-shaped heat exchange water tube comprises a plurality of main tubes, each main tube having a plurality of branch tubes connected thereto;

the interval between guide plate tip and the inner chamber lateral wall is provided with house steward, and the parallel interval in interval between two adjacent guide plates is provided with a plurality ofly the branch pipe, the length direction of branch pipe is parallel with the face of guide plate, the branch pipe with house steward intercommunication.

4. A home shower economizer as claimed in claim 2 wherein the inner chamber has a third side wall and a fourth side wall disposed opposite the third side wall, the third side wall being perpendicular to the first side wall;

the second side wall is provided with an outlet mounting hole corresponding to the warm water outlet end, the outlet mounting hole is positioned between the third side wall and a guide plate parallel to the third side wall at an interval, and one end of the guide plate opposite to the third side wall is connected with the second side wall;

the water leakage hole is positioned between the third side wall and a guide plate which is parallel to the third side wall and arranged at an interval, and the water leakage hole is close to the second side wall.

5. A household shower energy saver as defined in claim 4 wherein the second or first side wall is provided with an inlet mounting hole corresponding to the cold water inlet end, the inlet mounting hole being positioned between the fourth side wall and a baffle plate spaced parallel thereto;

the sewage discharge port is arranged above the inlet mounting hole.

6. A household shower energy saver as defined in claim 5 wherein a sealing ring is arranged in the outlet mounting hole, and a warm water outlet end of the heat exchange water pipe is connected with the sealing ring in a matching way;

a sealing ring is arranged in the inlet mounting hole, and a cold water inlet end of the heat exchange water pipe is connected with the sealing ring in a matching way;

and the sewage discharge port is provided with a drain pipe which is connected with the sewage collecting device.

7. A home shower energy saver as defined in claim 2 wherein the water pan is a rectangular pan shaped structure, the water pan being removably connected to the energy saving water tank;

one or more water leakage holes are formed in the water receiving tray.

8. A household shower energy saver as claimed in claim 1, wherein shower sewage in a shower process flows into the water receiving tank and flows into the energy saving water tank from the water leakage hole on the water receiving tank, the sewage flows along the S-shaped flow channel in the energy saving water tank, cold water entering the S-shaped heat exchange water pipe flows along the heat exchange water pipe, and the flow direction of the sewage is opposite to that of the cold water in the heat exchange water pipe; the cold water entering the S-shaped heat exchange water pipe exchanges heat with the sewage in the S-shaped flow passage.

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