CN207295863U - A kind of bathhouse heat recovery system - Google Patents

Abstract

The utility model discloses a heat recovery system for a public bathroom, aiming to provide a heat recovery system for a public bathroom with the advantages of being able to recycle the heat of bathing wastewater, reducing energy waste and heat pollution, and the main points of the technical scheme Yes, the bathroom body is connected with a waste gas heat recovery unit and a waste water heat recovery unit through pipelines, and the external tap water is preheated through the waste water heat recovery unit and the waste gas heat recovery unit in turn, and an evaporator and a heater are also provided outside the bathroom body , the preheated tap water passes through the evaporator and the water temperature regulator in turn, and then connects to the bathroom body for use. The waste gas heat recovery unit includes a condenser, and both the tap water and the waste gas are led to the condenser for heat exchange, using waste water and The exhaust gas heats the tap water twice, which increases the utilization rate of heat during bathing, reduces energy waste, and lowers the temperature of the discharged water, thereby reducing heat pollution to the water system and is conducive to environmental protection.

Description

A public bathroom heat recovery system

technical field

The utility model relates to the field of heat recovery systems, in particular to a heat recovery system for public bathrooms.

Background technique

Public bathrooms are places where people clean their bodies and pursue health and beauty. Taking a bath can remove dirt and sweat stains on the body surface, so as to eliminate fatigue, alleviate and treat certain diseases and have health care effects. Through paid or unpaid services, public bathrooms enable people to enjoy it easily even if it is inconvenient to bathe at home or go out.

In schools, especially those in northern my country, students’ bathing is generally done in public bathrooms. Now public baths use mostly coal-fired boilers as heat sources, and some use oil-fired boilers, electric boilers or heat pump systems for heating.

Energy conservation and emission reduction, development of circular economy, and environmental protection are the immediate goals and the only way for my country's economic development. The temperature of hot water for bathing is generally 40 degrees, the temperature of wastewater for bathing is generally 30 degrees, and the average temperature of tap water throughout the year is 12 degrees. thermal pollution.

Contents of the invention

The purpose of the utility model is to provide a public bathroom heat recovery system, which has the advantages of being able to recycle the heat of bathing wastewater, reducing energy waste and heat pollution.

The above-mentioned technical purpose of the utility model is achieved through the following technical solutions:

A public bathroom heat recovery system, including a bathroom body, the bathroom body is connected with a waste gas heat recovery unit and a waste water heat recovery unit through pipelines, and the external tap water is preheated sequentially through the waste water heat recovery unit and the waste gas heat recovery unit. There is also an evaporator and a water temperature regulator outside the body. The preheated tap water passes through the evaporator and the water temperature regulator in turn, and then connected to the bathroom body for use. The waste gas heat recovery unit includes a condenser, and both tap water and waste gas are passed through Heat exchange to the condenser.

By adopting the above technical scheme, the temperature difference between the hot water in the bathroom and before use is about 10°C, so the temperature of the bathing wastewater is generally 30°C. The first step of this system is to exchange heat between the tap water and the bathing wastewater. After raising the temperature of the tap water to a certain temperature, the temperature of the tap water is raised again through the waste gas heat recovery unit.

Then connect the tap water to the evaporator and the water temperature regulator, heat the tap water to a temperature suitable for bathing, and then connect it to the bathroom body for use. In this way, the waste water and waste gas are used to heat the tap water twice, which increases the use of heat during bathing The efficiency reduces the waste of energy and the temperature of the discharged water, thereby reducing the heat pollution to the water system and is conducive to environmental protection.

Further configuration: the waste water heat recovery unit includes a heat exchanger, tap water first enters the heat exchanger to exchange heat with the waste water, and then enters the condenser.

By adopting the above technical solution, the waste water is discharged from the bathroom body, enters the heat exchanger, and performs the first heat exchange with tap water, thus recycling the heat of the waste water.

Further setting: the condenser includes a tap water pipeline and a condensation chamber located in the tap water pipeline, and one end of the condensation chamber passing out of the condenser is provided with an exhaust port for exhausting waste gas and a drain port for removing condensed water.

By adopting the above technical solution, the function of the condenser is to exchange heat between the waste gas and tap water, so as to make secondary use of the heat of the waste gas. Since the exhaust gas will generate condensed water after heat exchange, part of the exhaust gas can be discharged from the exhaust port, and the condensed water will be discharged from the drain port, thereby completing the heat exchange.

Further setting: a filtered water tank is arranged outside the condenser, and the drain port is connected to the filtered water tank.

Further setting: a water storage tank is arranged outside the condenser, tap water enters the water storage tank after being discharged from the condenser, and the filter water tank is connected to the water storage tank.

By adopting the above technical solution, the condensed water produced by the condenser after heat exchange between the exhaust gas and tap water can be filtered through the filter tank, and then mixed with heated tap water for use, so that the heat of the condensed water can be recycled to further increase Heat recovery rate.

Further setting: the evaporator is located between the water storage tank and the bathroom body, and a throttle valve is arranged between the water storage tank and the evaporator.

By adopting the above technical solution, the throttle valve can adjust the water volume delivered by the water storage tank to the evaporator, so that it is convenient for the operator to regulate the water volume from the outside.

Further setting: the water temperature regulator is located between the evaporator and the bathroom body.

By adopting the above technical scheme, tap water enters the evaporator to be heated and then enters the water temperature regulator, and after being adjusted to a suitable temperature, enters the bathroom body for bathing.

Further setting: the steam in the bathroom body is drawn out by a fan, and a flow regulating valve is provided to adjust the size of the air flow.

In summary, the utility model has the following beneficial effects:

Waste water and waste gas are used to heat tap water twice, which increases the utilization rate of heat during bathing, reduces energy waste, and lowers the temperature of discharged water, thereby reducing heat pollution to the water system and is conducive to environmental protection.

Description of drawings

Below in conjunction with accompanying drawing, the utility model is further described.

FIG. 1 is a system diagram of Embodiment 1.

In the figure: 1. Bathroom body; 2. Waste gas heat recovery unit; 21. Condenser; 211. Condensation chamber; 212. Tap water pipe; 213. Exhaust port; 214. Drainage port; 22. Flow regulating valve; 3. Wastewater heat recovery unit; 31. Heat exchanger; 32. Wastewater discharge pipe; 4. Evaporator; 41. Exhaust port; 5. Water filter tank; 6. Throttle valve; 7. Water temperature regulator; 8. Water storage tank; 9. Exhaust gas pipe; 91. Water inlet pipe; 92. Waste water pipe.

Detailed ways

Below in conjunction with accompanying drawing, the specific embodiment of the present utility model is described further.

The technical scheme adopted in the utility model is:

Embodiment 1, a public bathroom heat recovery system, as shown in Figure 1, includes the bathroom body 1 on the right side, and two pipelines can be connected from the bathroom body 1, one is the waste gas pipeline 9, and the other is the waste water pipe 92. The waste gas pipeline 9 extracts the heat-containing water vapor generated in the bathroom body 1 through the fan, and the waste gas pipeline 9 is also provided with a flow regulating valve 22 for controlling the flow rate of the water vapor.

As shown in Figure 1, a waste water heat recovery unit 3 and a waste gas heat recovery unit 2 are also provided outside the bathroom body 1. The waste water heat recovery unit 3 is provided with a water inlet pipe 91, and tap water enters the waste water heat recovery unit 3 and the waste water heat recovery unit 3 sequentially from the water inlet pipe 91. The waste gas heat recovery unit 2 completes the heat exchange, the waste gas heat recovery unit 3 performs the initial preheating, and then the waste gas heat recovery unit 2 conducts the second preheating, which can greatly increase the temperature of the tap water to make full use of the waste gas and waste water heat energy, reducing energy consumption and thermal pollution.

As shown in FIG. 1 , the waste water heat recovery unit 3 includes a heat exchanger 31 . The heat exchanger 31 communicates with the bathroom body 1 through a waste water pipe 92 . The heat exchanger 31 is also provided with a water inlet pipe 91 . The tap water enters the heat exchanger 31 from the water inlet pipe 91, and exchanges heat with the waste water to complete the initial preheating of the tap water. The heat exchanger 31 is also provided with a waste water discharge pipe 32, through which waste water after heat exchange is completed is discharged.

As shown in FIG. 1 , the exhaust gas heat recovery unit 2 includes a condenser 21 , and the condenser 21 includes two parts, one of which is a condensation chamber 211 , and the other is a tap water pipeline 212 . The water vapor enters the condensation chamber 211, and the tap water enters the tap water pipe 212 from the heat exchanger 31, thus completing the heat exchange between the tap water and the water vapor, and realizing the secondary preheating of the tap water. The condenser 21 is provided with an exhaust port 213 and a drain port 214, and the exhaust port 213 can discharge waste gas.

Referring to FIG. 1 , a water storage tank 8 is arranged outside the condenser 21 , and the tap water is discharged into the water storage tank 8 after secondary preheating for storage. The condenser 21 is also connected with a filter tank 5. Since the water vapor will condense into water after heat exchange and contains a certain amount of heat, the condensed water can be used after being filtered. The condensed water is communicated into the tap water pipe 212 from the drain port 214, and is discharged into the water storage tank 8 for storage.

As shown in FIG. 1 , an evaporator 4 is arranged outside the water storage tank 8 , and the water storage tank 8 communicates with the evaporator 4 , and a throttle valve 6 for adjusting the flow of tap water is arranged between them. A water temperature regulator 7 is also provided between the evaporator 4 and the bathroom body 1 . The evaporator 4 can heat the tap water after preheating. After heating, part of the water vapor is discharged through the exhaust hole 41 arranged on the evaporator 4. The heated water is discharged into the water temperature regulator 7 to adjust the water temperature, and then transported to Used in the bathroom body 1.

The above are the preferred implementation cases of the utility model, and are not intended to limit the utility model in any form. Any simple modifications, equivalent changes and modifications made to the above embodiments according to the technical essence of the utility model are all practical. Within the scope of new technical solutions.

Claims (8)

1. a kind of bathhouse heat recovery system, including bathroom body（1）, it is characterised in that：The bathroom body（1）On pass through Pipeline is communicated with exhaust gas heat recovery units（2）With waste water heat recovery units（3）, external tap water passes sequentially through waste water recuperation of heat Unit（3）With exhaust gas heat recovery units（2）Preheated, bathroom body（1）It is additionally provided with evaporator outside（4）And thermostat （7）, the tap water after preheating passes sequentially through evaporator（4）And thermostat（7）, then it is connected to bathroom body（1）Interior progress Use, the exhaust gas heat recovery units（2）Including condenser（21）, tap water and exhaust gas each lead to condenser（21）Changed Heat.

A kind of 2. bathhouse heat recovery system according to claim 1, it is characterised in that：The waste water heat recovery units （3）Including heat exchanger（31）, tap water is introduced into heat exchanger（31）Exchange heat with waste water, enter back into condenser（21） It is interior.

A kind of 3. bathhouse heat recovery system according to claim 1, it is characterised in that：The condenser（21）Interior bag Include water supply pipe（212）With positioned at water supply pipe（212）Interior condensing chamber（211）, condensing chamber（211）It is pierced by condensation Device（21）One end be equipped with and be used to discharge the exhaust outlet of exhaust gas（213）With the discharge outlet for excluding condensed water（214）.

A kind of 4. bathhouse heat recovery system according to claim 3, it is characterised in that：The condenser（21）Peripheral hardware There is water tank with strainer（5）, discharge outlet（214）It is connected to water tank with strainer（5）It is interior.

A kind of 5. bathhouse heat recovery system according to claim 4, it is characterised in that：The condenser（21）It is outer to go back Equipped with water tank（8）, tap water is from condenser（21）Enter water tank after middle discharge（8）, water filtering tank（5）It is connected to water tank （8）.

A kind of 6. bathhouse heat recovery system according to claim 5, it is characterised in that：The evaporator（4）It is located at Water tank（8）With bathroom body（1）Between, water tank（8）With evaporator（4）Between be equipped with throttle valve（6）.

A kind of 7. bathhouse heat recovery system according to claim 1, it is characterised in that：The thermostat（7） Positioned at evaporator（4）With bathroom body（1）Between.

A kind of 8. bathhouse heat recovery system according to claim 1, it is characterised in that：The bathroom body（1）It is interior Steam extracted out by wind turbine, and equipped with adjust air-flow size flow control valve（22）.