CN106801996B

CN106801996B - Bathroom bathing system

Info

Publication number: CN106801996B
Application number: CN201710165456.7A
Authority: CN
Inventors: 陶云; 李振凯; 范召卿; 张斌; 谭德强; 吴扬军; 石望兵; 黄开东
Original assignee: Gree Electric Appliances Inc of Zhuhai
Current assignee: Gree Electric Appliances Inc of Zhuhai
Priority date: 2017-03-20
Filing date: 2017-03-20
Publication date: 2022-10-04
Anticipated expiration: 2037-03-20
Also published as: CN106801996A

Abstract

The invention discloses a bathroom bathing system. Bathroom bathing system is including the callus on the sole constitutional unit that is used for providing the bathing water supply unit of bathing water and is used for supporting the human body, and callus on the sole constitutional unit includes callus on the sole, heating module and heat recovery module, and heating module is used for heating the callus on the sole, and the heat recovery module is used for retrieving the heat of the waste water that forms after the bathing water uses. The bathroom bathing system of the invention heats the foot pad by arranging the foot pad structure unit and arranging the heating module in the foot pad structure unit, so that the temperature of the foot pad can be increased by controlling the working of the heating module before bathing or in the early stage of bathing to increase the temperature experienced by the foot, thereby improving the bathing comfort level. And the foot pad structure unit is also provided with a heat recovery module, so that the heat of the waste water formed after the bath water is used is effectively recovered and utilized, and the heat utilization rate is improved. Therefore, the bathroom bathing system can improve the bathing comfort degree and the heat utilization rate.

Description

Bathroom bathing system

Technical Field

The invention relates to the technical field of home furnishing, in particular to a bathroom bathing system.

Background

Because the room temperature in winter is usually lower than the body surface temperature of a human body, a bathroom is usually heated by a bathroom heater before bathing, but the bathroom heater can only improve the temperature of the upper space of the bathroom, and the temperature of the bottom space of the bathroom is lower in the early stage of bathing, so that the bathroom heater is warm up and cool down in the early stage of bathing, namely the temperature sensed by feet is lower, and the bathing experience is seriously influenced. The bath water is generally 37 ℃, the temperature is still higher than 35 ℃ after the bath water flows through a human body through washing, and the part of waste water directly flows out through a sewer, so that great heat waste exists.

Disclosure of Invention

The invention aims to provide a bathroom bathing system which can improve the bathing comfort degree and the heat utilization rate.

The invention provides a bathroom bathing system which comprises a bathing water supply unit for supplying bathing water and a foot pad structure unit for supporting a human body, wherein the foot pad structure unit comprises a foot pad, a heating module and a heat recovery module, the heating module is used for heating the foot pad, and the heat recovery module is used for recovering heat of waste water formed after the bathing water is used.

Further, the bath water supply unit includes a heat pump water heater, wherein,

the heating module is coupled with the heat pump water heater to heat the foot pad by using fluid of the heat pump water heater; and/or the presence of a gas in the gas,

the heat recovery module is coupled with the heat pump water heater to heat the fluid of the heat pump water heater by utilizing the recovered heat of the wastewater.

Further, the heating module comprises a heating medium channel for circulating a heating medium, the heating medium channel is provided with a heating medium inlet and a heating medium outlet, the water storage tank of the heat pump water heater is provided with a water storage tank water inlet, a water storage tank water outlet, a water storage tank refrigerant inlet and a water storage tank refrigerant outlet, the water storage tank water inlet is connected with a cold water source, the water storage tank water outlet is connected with a bathing spray head, wherein,

the heating medium is a refrigerant, the heating medium inlet is connected with the refrigerant inlet of the water storage tank, and the heating medium outlet is connected with the refrigerant outlet of the water storage tank; alternatively, the first and second electrodes may be,

the heating medium is water, the heating medium inlet is connected with the water outlet of the water storage tank, and the heating medium outlet is connected with the water inlet of the water storage tank.

Further, the heating medium is water, the heating medium inlet is connected with the water outlet of the water storage tank, the heating medium outlet is connected with the water inlet of the water storage tank, wherein,

the bathroom bathing system further comprises a one-way valve, an inlet of the one-way valve is connected with the heating medium outlet, an outlet of the one-way valve is connected with a water inlet of the water storage tank, and the cold water source is connected between an outlet of the one-way valve and the water inlet of the water storage tank; and/or the presence of a gas in the gas,

the bathroom bathing system further comprises a water pump connected with the heating medium channel in series, an inlet of the water pump is connected with a water outlet of the water storage tank, an outlet of the water pump is connected with a water inlet of the water storage tank, and a cold water source is connected between an outlet of the water pump and the water inlet of the water storage tank.

Furthermore, the bathroom bathing system further comprises an on-off control valve, and the on-off control valve is used for controlling the on-off between the heating module and the water storage tank.

Further, the heating medium is water, the heating medium inlet is connected with the water outlet of the water storage tank, the heating medium outlet is connected with the water inlet of the water storage tank, the heat recovery module comprises a heat exchanger, the heat exchanger comprises a heat absorbing medium channel for circulating a heat absorbing medium, the heat absorbing medium channel is provided with a heat absorbing medium inlet and a heat absorbing medium outlet, the heat absorbing medium is water, the heat absorbing medium inlet is connected with the cold water source, the heat absorbing medium outlet is connected with the bathing spray head, wherein,

the bathroom bathing system comprises a first reversing valve, and the first reversing valve controls the bathing spray head to be communicated with one of the heat-absorbing medium outlet and the heating medium inlet and to be disconnected with the other of the heat-absorbing medium outlet and the heating medium inlet; and/or the presence of a gas in the gas,

the bathroom bathing system comprises a second reversing valve, and the second reversing valve controls the cold water source to be communicated with one of the heat absorbing medium inlet and the heating medium outlet and to be disconnected with the other of the heat absorbing medium inlet and the heating medium outlet.

Further, the heat recovery module comprises a heat exchanger, the heat exchanger comprises a heat absorbing medium channel for circulating a heat absorbing medium, the heat absorbing medium channel is provided with a heat absorbing medium inlet and a heat absorbing medium outlet, a water storage tank of the heat pump water heater is provided with a water storage tank water inlet and a water storage tank water outlet, the water storage tank water inlet is connected with a cold water source, the water storage tank water outlet is connected with a bathing spray head, wherein,

the heat absorbing medium is water, the heat absorbing medium inlet is connected with a cold water source, and the heat absorbing medium outlet is connected with the bathing spray head or the water inlet of the water storage tank; alternatively, the first and second electrodes may be,

the heat absorbing medium is a refrigerant, the heat absorbing medium inlet is connected with the outlet of the low-temperature and low-pressure refrigerant of the refrigerant circulating loop of the heat pump water heater, and the refrigerant at the heat absorbing medium outlet flows back to the refrigerant circulating loop.

Further, the heat exchanger is a coil type heat exchanger.

Further, the coil pipe type heat exchanger comprises a coil pipe, the coil pipe comprises a coil pipe body and a heat exchange layer which is attached to the outer surface of the coil pipe body, and the outer surface of the heat exchange layer comprises a first protruding portion and/or a recessed portion.

Further, the coil pipe type heat exchanger comprises a coil pipe and a spacer bush sleeved on the periphery of the coil pipe at intervals, and the spacer bush is provided with an opening for the wastewater to enter and exit.

Further, the bathroom bathing system further comprises a temperature controller coupled to the heating module, the temperature controller controlling the heating module to control the temperature of the foot pads.

Furthermore, the foot pad structure unit is of a layered structure, the foot pad, the heating module and the heat recovery module are sequentially arranged from top to bottom, a first wastewater circulation channel communicated with the upper surface and the lower surface of the foot pad is arranged on the foot pad, and a second wastewater circulation channel communicated with the upper surface and the lower surface of the heating module is arranged on the heating module.

Further, an upper surface of the footpad includes a plurality of second bosses and/or an upper surface of the heating module includes a third boss.

Further, the foot pad structural unit further comprises a first heat insulation layer, the first heat insulation layer is arranged between the heating module and the heat recovery module, and the first heat insulation layer is provided with a third wastewater circulation channel communicated with the upper surface and the lower surface of the first heat insulation layer.

Furthermore, callus on the sole constitutional unit still includes the waste water collecting vat, heat recovery module set up in the waste water collecting vat, the waste water collecting vat has the waste water import that is used for receiving waste water and is used for discharging the waste water export of waste water, be provided with in the waste water collecting vat and be used for slowing down the waste water flows out the slow flow passageway of the speed of waste water export.

Further, the foot pad structure unit further comprises a second heat insulation layer, the second heat insulation layer is arranged between the heat recovery module and the groove bottom of the wastewater collection groove, and the second heat insulation layer is provided with a fourth wastewater circulation channel communicated with the upper surface and the lower surface of the second heat insulation layer.

Based on the bathroom bathing system provided by the invention, the bathroom bathing system comprises a bathing water supply unit for providing bathing water and a foot pad structure unit for supporting a human body, wherein the foot pad structure unit comprises a foot pad, a heating module and a heat recovery module, the heating module is used for heating the foot pad, and the heat recovery module is used for recovering heat of waste water formed after the bathing water is used. The bathroom bathing system is provided with the foot pad structure unit and the heating module is arranged in the foot pad structure unit to heat the foot pad, so that the temperature of the foot pad can be increased by controlling the heating module to work before bathing or in the early stage of bathing so as to increase the temperature experienced by the foot, and the bathing comfort level is improved. And the foot pad structure unit is also provided with a heat recovery module, so that the heat of the waste water formed after the bath water is used is effectively recovered and utilized, and the heat utilization rate is improved. Therefore, the bathroom bathing system can improve the bathing comfort degree and the heat utilization rate.

Other features of the present invention and advantages thereof will become apparent from the following detailed description of exemplary embodiments of the invention, which proceeds with reference to the accompanying drawings.

Drawings

The accompanying drawings, which are included to provide a further understanding of the invention and are incorporated in and constitute a part of this application, illustrate embodiment(s) of the invention and together with the description serve to explain the invention without limiting the invention. In the drawings:

FIG. 1 is a schematic structural view of a bathroom bathing system in a first embodiment of the present invention;

FIG. 2 is a schematic diagram of the construction of the footbed structural unit of FIG. 1;

FIG. 3 is a schematic diagram of the heat exchanger of FIG. 2;

FIG. 4 is a schematic cross-sectional structure of the coil and the heat exchange layer in FIG. 3;

FIG. 5 is a schematic structural view of a bathroom bathing system in a second embodiment of the present invention;

fig. 6 is a partially enlarged view of a portion M in fig. 5.

Each reference numeral represents:

1-a foot pad structural unit; 11-a foot pad; 12-a heating module; 12A-heating medium inlet; 13-a heat recovery module; 131-heat exchanger; 1311-coiled tubing; 1311A-coil tubing; 1311B-heat exchange layer; 1312-spacer bush; 13A-heat absorbing medium inlet; 13B-heat absorbing medium outlet; 14-a first insulating layer; 15-a second insulating layer; 16-wastewater collection tank 2-bath nozzle; 3-a one-way valve; 4-on-off control valve; 5, a water pump; 6-a first reversing valve; 7-a second reversing valve; 8, a water storage tank; WI-water tank inlet; WO-a water outlet of the water storage tank; RI-storage tank refrigerant inlet; an RO-tank refrigerant outlet; 9-an outdoor unit; o-cold water source; c1-a water circulation loop; c2-refrigerant circulation circuit.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. The following description of at least one exemplary embodiment is merely illustrative in nature and is in no way intended to limit the invention, its application, or uses. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

The relative arrangement of the components and steps, the numerical expressions and numerical values set forth in these embodiments do not limit the scope of the present invention unless specifically stated otherwise. Meanwhile, it should be understood that the sizes of the respective portions shown in the drawings are not drawn in an actual proportional relationship for the convenience of description. Techniques, methods, and apparatus known to those of ordinary skill in the relevant art may not be discussed in detail but are intended to be part of the specification where appropriate. In all examples shown and discussed herein, any particular value should be construed as merely illustrative, and not limiting. Thus, other examples of the exemplary embodiments may have different values. It should be noted that: like reference numbers and letters refer to like items in the following figures, and thus, once an item is defined in one figure, further discussion thereof is not required in subsequent figures.

For ease of description, spatially relative terms such as "over … …", "over … …", "over … …", "over", etc. may be used herein to describe the spatial positional relationship of one device or feature to another device or feature as shown in the figures. It will be understood that the spatially relative terms are intended to encompass different orientations of the device in use or operation in addition to the orientation depicted in the figures. For example, if a device in the figures is turned over, devices described as "above" or "on" other devices or configurations would then be oriented "below" or "under" the other devices or configurations. Thus, the exemplary term "above … …" may include both orientations of "above … …" and "below … …". The device may be otherwise variously oriented (rotated 90 degrees or at other orientations) and the spatially relative descriptors used herein interpreted accordingly.

The bathroom bathing system of the embodiment of the invention comprises a bathing water supply unit for supplying bathing water and a foot pad structure unit for supporting a human body. The foot pad structure unit comprises a foot pad, a heating module and a heat recovery module, wherein the foot pad, the heating module and the heat recovery module are used for contacting with a human body, the heating module is used for heating the foot pad, and the heat recovery module is used for recovering heat of waste water formed after bath water is used. The bathroom bathing system provided by the embodiment of the invention heats the foot pad by arranging the foot pad structure unit and arranging the heating module in the foot pad structure unit, so that the temperature of the foot pad can be increased by controlling the heating module to work before bathing or in the early stage of bathing so as to increase the temperature experienced by the foot, thereby improving the bathing comfort level. In addition, the foot pad structure unit of the embodiment of the invention is also provided with the heat recovery module, so that the heat of the waste water formed after the bath water is used is effectively recovered and utilized, and the heat utilization rate is improved. In addition, the bathroom bathing system provided by the embodiment of the invention integrates the heating module and the heat recovery module into the foot pad structure unit, so that the arrangement of the bathroom bathing system is simple.

The construction of the bathroom bathing systems according to two embodiments of the present invention will be described in detail with reference to fig. 1 to 6.

First embodiment

As shown in fig. 1, the bathroom bathing system of the present embodiment includes a bathing water supply unit for supplying bathing water and a foot pad structure unit 1 for supporting a human body. Wherein, the bath water supply unit comprises a heat pump water heater, and the heat pump water heater comprises a water storage tank 8 and an outdoor unit 9. The water inlet WI of the water storage tank is provided with cold water by a cold water source O, and the water outlet WO of the water storage tank is connected with the bathing spray head 2 to provide hot water for bathing of a user.

The foot pad structure unit 1 includes a foot pad 11, a heating module 12, and a heat recovery module 13.

In the present embodiment, the heating module 12 is coupled with the heat pump water heater to heat the foot pads 11 with the fluid of the heat pump water heater.

The heating module 12 may heat the foot pad 11 using hot water of the heat pump water heater 11, or may heat the foot pad 11 using a high-temperature and high-pressure refrigerant of the heat pump water heater. In the present embodiment, the heating module 12 heats the mat with the hot water of the heat pump water heater.

The structure and operation of the heating module of the present embodiment will be described in detail with reference to fig. 1 and 2.

The heating module 12 includes a heating medium passage for circulating a heating medium. The heating medium passage has a heating medium inlet 12A and a heating medium outlet (not shown in the figure). In the present embodiment, the heating medium of the heating module 12 is water. The heating medium inlet 12A of the heating module 12 is connected with the water outlet WO of the water storage tank, and after the foot pad is heated by the heating medium (water), the heating medium (water) flows back to the water storage tank from the heating medium outlet through the water inlet WI of the water storage tank. The heating module 12 of the present embodiment heats the foot pad 11 by using hot water supplied from a bathroom bathing system without adding a new heat source, and thus, the present embodiment can be applied to any bathroom having a hot water supply, and thus, the application range is wide. In the embodiment, the water circulation loop is shown as C1 in fig. 1, hot water output from a water outlet WO of the water storage tank is divided into two branches, one branch flows out through the bathing nozzle 2 for bathing, and the other branch enters the heating module 12 to heat the foot pad 11. Before bathing or in the early stage of bathing, hot water output from a water outlet WO of the water storage tank can be controlled to enter the heating module 12 to heat the foot pad 11 so as to improve the bathing comfort level.

Since the heating medium outlet is connected to the reservoir water inlet WI and the reservoir water inlet WI is connected to the cold water source O, the bathroom bathing system may include a check valve 3 as shown in fig. 1 in order to prevent cold water of the cold water source O from entering the heating module 12 through the heating medium outlet. The inlet of the one-way valve 3 is connected with the outlet of the heating medium, the outlet of the one-way valve 3 is connected with the water inlet WI of the water storage tank, and the cold water source O is connected between the outlet of the one-way valve 3 and the water inlet WI of the water storage tank. The setting of the one-way valve 3 enables water to flow to the water inlet WI of the water storage tank only from the outlet of the heating medium, thereby preventing cold water of the cold water source O from entering the heating module and influencing the heating function of the heating module.

In another embodiment not shown in the drawings, to prevent cold water from the cold water source from entering the heating module through the heating medium outlet of the heating module, the bathroom bathing system may further comprise a water pump connected in series with the heating medium passage, an inlet of the water pump being connected to the water tank outlet, an outlet of the water pump being connected to the water tank inlet to feed water from the heating medium outlet into the water tank, the cold water source being connected between the outlet of the water pump and the water tank inlet. The water pump pumps hot water at the water outlet of the water storage tank into the heating module under pressure to prevent cold water of the cold water source from entering the heating module.

The bathroom bathing system of the first embodiment as shown in figure 1 is provided with only a one-way valve. Of course, only a water pump may be provided therein. Or both the water pump and the one-way valve can be arranged.

The heating module 12 of the present embodiment utilizes water circulation to achieve the heating function of the heating module 12. To improve the controllability of the heating module 12, the bathroom bathing system further comprises an on-off control valve 4. The on-off control valve 4 is used for controlling the on-off between the heating module 12 and the water storage tank 8. The on-off control valve 4 may be disposed in a water circulation loop between the heating module 12 and the water storage tank 8, that is, may be disposed between the water outlet WO of the water storage tank and the heating medium inlet of the heating module 12, or may be disposed between the heating medium outlet of the heating module 12 and the water inlet WI of the water storage tank.

Specifically, as shown in fig. 1, the on-off control valve 4 of the present embodiment is provided between the heating medium outlet of the heating module 12 and the tank water inlet WI.

Preferably, in order to make the temperature of the foot pad 11 controllable to provide the most comfortable temperature experience for the user, the bathroom bathing system of this embodiment further comprises a temperature controller coupled to the heating module 12, the temperature controller controlling the heating module to control the temperature of the foot pad.

Preferably, the heat recovery module 13 is coupled with the heat pump water heater to heat the fluid of the heat pump water heater using the heat of the recovered wastewater. The heat recovery module 13 may heat the cold water using the heat of the recovered waste water, or may heat the refrigerant using the heat of the recovered waste water.

In the present embodiment, the heat recovery module 13 heats the refrigerant using the heat of the recovered waste water. The structure and operation of the heat recovery module 13 of the present embodiment will be described in detail with reference to fig. 1 and 2.

Specifically, as shown in fig. 2, the heat recovery module 13 of the present embodiment includes a heat exchanger 131. The heat exchanger 131 includes a heat absorbing medium passage for circulating a heat absorbing medium. The heat absorbing medium passage has a heat absorbing medium inlet 13A and a heat absorbing medium outlet (not shown in the drawings).

As shown in fig. 1 and 2, in the present embodiment, the heat absorbing medium of the heat recovery module 13 is a refrigerant. The heat-absorbing medium inlet 13A is connected to a low-temperature and low-pressure refrigerant outlet in the refrigerant circulation circuit of the heat pump water heater, and the refrigerant at the heat-absorbing medium outlet flows back to the refrigerant circulation circuit. That is, the heat-absorbing medium inlet 13A is used for inputting low-temperature and low-pressure refrigerant, the heat-absorbing medium outlet is used for outputting the refrigerant heated by the heat of the recovered wastewater and flowing back to the external unit, the temperature of the refrigerant heated by the heat of the recovered wastewater rises and returns to the external unit, and the heat required by the refrigerant compressed to the target temperature is reduced, so that the heat utilization rate of the bathroom bathing system is improved. The refrigerant circulation circuit is shown as C2 in fig. 1. The heat exchanger of the heat recovery module of the embodiment utilizes the refrigerant of the heat pump water heater as a heat absorbing medium to enable the bathroom bathing system of the embodiment to become an organic whole based on the heat pump water heater, the setting mode is simple, and the application range is wider.

The heat exchanger 131 of the present embodiment is a coil heat exchanger, and the specific structure is shown in fig. 3. The coil type heat exchanger can increase the heat exchange area between the heat absorbing medium in the heat exchanger and the waste water, thereby improving the heat recovery rate of the heat recovery module.

As shown in fig. 4, the coil heat exchanger 131 includes a coil 1311. The coil 1311 includes a coil pipe body 1311A and a heat exchange layer 1311B attached to an outer surface of the coil pipe body 1311A. The heat exchange layer 1311B provided outside the coil pipe 1311A can also isolate the coil pipe 1311A from the wastewater, thereby preventing the wastewater from corroding the coil pipe 1311A. The outer surface of heat exchange layer 1311B includes first raised portions and/or recessed portions. The uneven arrangement of the outer surface of the heat exchange layer 1311B can increase the heat exchange area between the coil 1311 and the wastewater, thereby improving the heat recovery rate.

Specifically, the coil of the present embodiment is a stainless steel tube. The heat exchange layer on the outer surface of the stainless steel pipe is arranged in a concave-convex mode by adopting an aluminum casting process.

In an alternative embodiment, as shown in fig. 4, the coil type heat exchanger further includes a coil 1311 and a spacer 1312 surrounding the coil 1311 at intervals. The spacer 1312 is provided with an opening for the entry and exit of wastewater. Spacer 1312 serves to isolate coil 1311 from the user and prevent skin damage to the user due to the low temperature and low pressure refrigerant flowing inside coil 1311 when coil 1311 contacts the human body, which may cause the surface temperature of coil 1311 to be too low.

The spacer 1312 provided on the outer periphery of the coil 1311 is optional, and may be preferable when temperature transfer is directly performed between the coil heat exchanger and the human body. However, in the embodiment shown in fig. 2, the coil heat exchanger is disposed below the heating module, and the coil heat exchanger does not directly transmit the temperature to the human body, so that a spacer is not required.

In order to collect the waste water after bathing and to avoid too high a flow rate of the waste water, the foot mat structure unit 1 of the present embodiment further comprises a waste water collection tank 16. The heat recovery module 13 is disposed within a wastewater collection tank 16. The wastewater collection tank 16 has a wastewater inlet for receiving wastewater and a wastewater outlet for discharging wastewater. A slow flow channel for slowing the speed of the wastewater flowing out of the wastewater outlet is arranged in the wastewater collection tank 16. The setting of slow flow passageway makes the velocity of flow of waste water in the waste water collecting vat slow down, therefore waste water and the heat absorbing medium in the heat exchange tube carry out abundant heat transfer, improves heat recovery rate.

The setting of slow flow passageway can have multiple mode, for example, can set up the bend in the wastewater collection groove, makes waste water flow to the waste water export and then flow along the bend after getting into the wastewater collection groove from waste water import, and the setting of bend increases the circulation distance of waste water, and then increases the heat transfer time between the heat absorbing medium in waste water and the heat exchange tube to improve heat recovery rate.

Specifically, as shown in fig. 2, the wastewater collection tank of the foot pad structural unit of the present embodiment is a square structure, and the wastewater collection tank and the foot pad are enclosed together to form a whole to form the foot pad structural unit. And the heating module and the heat recovery module are both arranged in the foot pad structural unit formed by enclosing. The foot pad is provided with a through hole as a wastewater inlet so that the wastewater after bathing can enter the wastewater collecting tank through the through hole and fully exchange heat with the heat exchanger 131.

In this embodiment, the left and right side walls of the cube structure are also provided with wastewater inlets. The waste water outlet is arranged on the bottom wall of the square structure.

As shown in fig. 2, the footbed structure unit of this embodiment is a laminated structure. The foot pad 11, the heating module 12 and the heat recovery module 13 are arranged in sequence from top to bottom. The foot pad 11 is provided with a first waste water circulation passage for communicating the upper surface and the lower surface of the foot pad 11, and the heating module 12 is provided with a second waste water circulation passage for communicating the upper surface and the lower surface of the heating module 12. The arrangement of the first wastewater circulation channel and the second wastewater circulation channel enables wastewater formed after bathing to enter the wastewater collection tank through the foot pad 11 and the heating module 12 so as to exchange heat with the heat exchanger.

Preferably, the upper surface of the footpad 11 includes a plurality of second raised portions. The arrangement of the second protruding parts can play a role in massaging feet, so that the bathing comfort level is improved.

Since the foot pad 11 is disposed above the heating module 12, a third protrusion portion may be disposed on the upper surface of the heating module 12 to form an uneven upper surface of the foot pad 11.

In order to avoid that the heat absorbing medium in the heat exchanger of the heat recovery module absorbs the heat of the heating module to affect the bathing comfort, as shown in fig. 2, the foot pad structure unit of the present embodiment further includes a first heat insulation layer 14, and the first heat insulation layer 14 is disposed between the heat recovery module 13 and the heating module 12. The first heat insulating layer 14 is provided with a third waste water circulation passage for communicating the upper surface and the lower surface of the first heat insulating layer 14. As shown in fig. 2, a first insulating layer 14 is provided on the upper side of the heat exchanger. The first heat insulation layer 14 isolates the heating module 12 from the heat recovery module 13 so as to avoid the heat of the heating module being directly absorbed by the heat recovery module to influence the heating effect on the foot pad.

Preferably, in order to avoid that the ground absorbs the heat of the heat recovery module 13, thereby affecting the heat recovery rate, the footbed structural unit 1 of this embodiment further comprises a second thermal insulation layer 15. The second thermally insulating layer 15 is arranged between the heat recovery module 13 and the bottom of the wastewater collection tank and the second thermally insulating layer 15 has a fourth wastewater flow channel communicating the upper and lower surfaces of the second thermally insulating layer.

Second embodiment

Unlike the first embodiment, the heating medium of the heating module and the heat absorbing medium of the heat recovery module of the bathroom bathing system of this embodiment are both water. The construction and operation of the bathroom bathing system of the second embodiment will now be described in detail with reference to fig. 5 and 6.

As shown in fig. 5 and 6, in the present embodiment, the heating medium of the heating module 12 is water, and the heat absorbing medium of the heat recovery module 13 is also water. At this time, the heating medium inlet 12A of the heating module 12 is connected to the water outlet WO of the water tank, and the heating medium outlet is connected to the water inlet WI of the water tank. The heat absorbing medium inlet of the heat recovery module 13 is connected with a cold water source O, and the heat absorbing medium outlet 13B is connected with the bathing spray head 2. The heating medium of the heating module and the heat absorbing medium of the heat recovery module of the bathroom bathing system of the embodiment are both water, so that the foot pad structural unit of the embodiment can be applied to any bathroom supplied with hot water and is not limited to the bathroom provided with the heat pump water heater.

In the embodiment, the heat absorbing medium outlet 13B of the heat recovery module 13 is connected to the shower nozzle 2, the heating medium inlet 12A of the heating module 12 is connected to the water outlet WO of the water storage tank, and the water outlet WO of the water storage tank is connected to the shower nozzle 2, so that the flow direction (indicated by the arrow in fig. 5) of the water in the flow path between the heating medium inlet 12A and the shower nozzle 2 when the heating module 12 operates is opposite to the flow direction of the water in the flow path between the heat absorbing medium outlet 13B and the shower nozzle 2 when the heat recovery module 13 operates. Similarly, the flow direction of water in the flow path between the heating medium outlet and the cold water source O when the heating module 12 is in operation is opposite to the flow direction of water in the flow path between the heat absorbing medium inlet and the cold water source O when the heat recovery module 13 is in operation.

In order to ensure that the two modules can work normally, only one module can work at the same time. In order to switch the operation of the two modules, as shown in fig. 6, the bathroom bathing system of this embodiment includes a first direction valve 6 and a second direction valve 7. The first reversing valve 6 controls the bath nozzle 2 to be communicated with one of the heat absorbing medium outlet 13B and the heating medium inlet 12A and to be disconnected with the other, and the second reversing valve 7 controls the cold water source to be communicated with one of the heat absorbing medium inlet and the heating medium outlet and to be disconnected with the other. That is, when the heating module needs to work, the first reversing valve 6 and the second reversing valve 7 are controlled to enable the heating medium inlet 12A to be communicated with the bathing spray head 2 and the heat-absorbing medium outlet 13B to be disconnected with the bathing spray head 2, and enable the heating medium outlet to be communicated with the cold water source O and the heat-absorbing medium inlet to be disconnected with the cold water source O. When the heat recovery module is required to work, the first reversing valve 6 and the second reversing valve 7 are controlled to disconnect the heating medium inlet 12A from the bathing spray head 2, so that the heat-absorbing medium outlet 13B is communicated with the bathing spray head 2, and the heating medium outlet is disconnected from the cold water source, so that the heat-absorbing medium inlet is used by a cold water user. Certainly, the warm water or the hot water flowing out of the heat absorbing medium outlet can also return to the water storage tank for heating and then is output from the water outlet of the water storage tank for users to use.

In this embodiment, warm water or hot water formed after absorbing heat of the waste water enters the shower head 2 from the heat absorbing medium outlet 13B and is directly mixed with hot water output from the water outlet of the water storage tank for the user to use. Certainly, the warm water or the hot water flowing out of the heat absorbing medium outlet can also return to the water storage tank for heating and then is output from the water outlet of the water storage tank for users to use.

As shown in fig. 6, the bathroom bathing system further comprises a water pump 5 connected in series with the heating medium channel. The inlet of the water pump 5 is connected with the water outlet WO of the water storage tank, the outlet of the water pump 5 is connected with the water inlet WI of the water storage tank so as to send the water at the outlet of the heating medium into the water storage tank, and the cold water source O is connected between the outlet of the water pump 5 and the water inlet WI of the water storage tank. The water pump pumps hot water at the water outlet of the water storage tank into the heating module under pressure to prevent cold water of the cold water source from entering the heating module.

Other undescribed components of the second embodiment and the connection relationships, functions, effects, and the like between the components may be referred to the first embodiment.

Finally, it should be noted that: the above examples are only intended to illustrate the technical solution of the present invention and not to limit it; although the present invention has been described in detail with reference to preferred embodiments, those skilled in the art will understand that: modifications to the specific embodiments of the invention or equivalent substitutions for parts of the technical features may be made; without departing from the spirit of the present invention, it is intended to cover all aspects of the invention as defined by the appended claims.

Claims

1. A bathroom bathing system is characterized by comprising a bathing water supply unit for providing bathing water and a foot pad structure unit (1) for supporting a human body, wherein the foot pad structure unit (1) comprises a foot pad (11), a heating module (12) and a heat recovery module (13), the heating module (12) is used for heating the foot pad (11), the heat recovery module (13) is used for recovering heat of waste water formed after the bathing water is used, a heating medium of the heating module (12) is water, a heat absorption medium of the heat recovery module (13) is also water, a water storage tank of the bathing water supply unit is provided with a water storage tank Water Inlet (WI) and a water storage tank Water Outlet (WO), the water storage tank Water Outlet (WO) is connected with a bathing spray head (2), a heating medium inlet (12A) of the heating module (12) is connected with the water storage tank Water Outlet (WO), a heating medium outlet of the heating module (12) is connected with the water storage tank Water Inlet (WI), a heat absorption medium inlet of the heat recovery module (13) is connected with a water source (O), a heat absorption medium outlet (6) is connected with a cold water source (6) and a reversing valve is connected with a first heat absorption medium reversing valve (6) and a second heat exchange valve (6) connected with a bathroom spray head (2), the second reversing valve controls the connection and disconnection of a cold water source and one of the heat absorbing medium inlet and the heating medium outlet.

2. The bathroom bathing system of claim 1, wherein the bathing water supply unit comprises a heat pump water heater, wherein,

the heating module (12) is coupled with the heat pump water heater to heat the foot pad with fluid of the heat pump water heater; and/or the presence of a gas in the gas,

the heat recovery module (13) is coupled with the heat pump water heater to heat the fluid of the heat pump water heater by using the recovered heat of the wastewater.

3. A bathroom bathing system according to claim 1,

the bathroom bathing system further comprises a one-way valve (3), an inlet of the one-way valve (3) is connected with the heating medium outlet, an outlet of the one-way valve (3) is connected with a Water Inlet (WI) of the water storage tank, and the cold water source is connected between an outlet of the one-way valve (3) and the Water Inlet (WI) of the water storage tank; and/or the presence of a gas in the gas,

the bathroom bathing system further comprises a water pump (5) connected with the heating medium channel in series, an inlet of the water pump (5) is connected with a Water Outlet (WO) of the water storage tank, an outlet of the water pump (5) is connected with a Water Inlet (WI) of the water storage tank, and a cold water source (O) is connected between the outlet of the water pump (5) and the Water Inlet (WI) of the water storage tank.

4. A bathroom bathing system according to claim 3, further comprising an on-off control valve (4), the on-off control valve (4) being used to control the on-off between the heating module (12) and the water storage tank.

5. A bathroom bathing system according to claim 2, wherein the heat recovery module (13) comprises a heat exchanger (131), the heat exchanger (131) comprising a heat absorbing medium channel for circulating a heat absorbing medium, the heat absorbing medium channel having a heat absorbing medium inlet and a heat absorbing medium outlet, the water storage tank of the heat pump water heater having a water storage tank inlet (WI) and a water storage tank outlet (WI), the water storage tank inlet (WI) being connected to a cold water source (O).

6. A bathroom bathing system according to claim 5, wherein the heat exchanger (131) is a coil heat exchanger.

7. A bathroom bathing system according to claim 6, wherein the coil-and-tube heat exchanger comprises a coil (1311), the coil (1311) comprises a coil tube body (1311A) and a heat exchange layer (1311B) attached to an outer surface of the coil tube body (1311A), and an outer surface of the heat exchange layer (1311B) comprises first protrusions and/or depressions.

8. A bathroom bathing system according to claim 6, wherein the coil-and-tube heat exchanger comprises a coil (1311) and a spacer (1312) that is arranged around the periphery of the coil (1311) at intervals, the spacer (1312) having an opening for the ingress and egress of the wastewater.

9. A bathroom bathing system according to any one of claims 1-8, further comprising a temperature controller coupled to the heating module (12), the temperature controller controlling the heating module (12) to control the temperature of the foot pads.

10. Bathroom bathing system according to any one of claims 1-8, wherein said foot pad structure unit is a layered structure, said foot pad (11), said heating module (12) and said heat recovery module (13) are arranged in sequence from top to bottom, said foot pad (11) having a first waste water flow channel communicating the upper and lower surfaces of said foot pad (11), said heating module (12) having a second waste water flow channel communicating the upper and lower surfaces of said heating module (12).

11. A bathroom bathing system according to claim 10, characterised in that the upper surface of the foot pad (11) comprises a plurality of second protrusions and/or the upper surface of the heating module (12) comprises a third protrusion.

12. A bathroom bathing system according to claim 10, wherein the foot rest structural unit further comprises a first thermally insulating layer (14), the first thermally insulating layer (14) being provided between the heating module (12) and the heat recovery module (13), the first thermally insulating layer (14) having a third waste water circulation passage communicating upper and lower surfaces of the first thermally insulating layer.

13. Bathroom bathing system according to any one of claims 1-8, wherein said foot-supported structure unit (1) further comprises a waste water collection tank (16), said heat recovery module (13) being arranged within said waste water collection tank (16), said waste water collection tank (16) having a waste water inlet for receiving said waste water and a waste water outlet for discharging said waste water, a slow flow channel being arranged within said waste water collection tank (16) for slowing the rate of flow of said waste water out of said waste water outlet.

14. A bathroom bathing system according to claim 13, wherein the foot rest structural unit (1) further comprises a second thermally insulating layer (15), the second thermally insulating layer (15) being arranged between the heat recovery module (13) and the floor of the waste water collection tank, the second thermally insulating layer (15) having a fourth waste water flow channel communicating the upper and lower surfaces of the second thermally insulating layer (15).