CN117948657A - Room temperature regulating system of waste heat recovery plant and working method thereof - Google Patents

Abstract

The invention discloses a room temperature regulating system of a waste heat recovery plant and a working method thereof, belonging to the field of plant temperature regulating systems, wherein the room temperature regulating system adopts a working medium circulation channel, the working medium circulation channel is preset in an inner wall of the waste heat recovery plant in advance, a working medium inlet for communicating with a cold/heat source is formed in the working medium circulation channel, when the indoor temperature needs to be regulated, one end of the cold/heat source is started, and cold/heat working medium is conveyed to the working medium circulation channel in the wall of the waste heat recovery plant through the working medium inlet so as to realize heat exchange between indoor air and the wall of the waste heat recovery plant, so that the indoor temperature regulation of the waste heat recovery plant is realized; compared with the traditional heat dissipation mode, the heat dissipation type indoor heat exchanger has the advantages that the working medium circulation channel is arranged in the wall body, so that the contact area of a cold source and indoor air is increased, the heat exchange efficiency is improved, and heating or refrigerating of a whole factory building, all people and indoor storage equipment can be accurately covered; and the energy loss of the cold/heat source is reduced, so that the energy saving purpose is achieved.

Description

Room temperature regulating system of waste heat recovery plant and working method thereof

Technical Field

The invention belongs to the field of plant temperature regulation systems, and particularly relates to a room temperature regulation system of a waste heat recovery plant and a working method thereof.

Background

In coal-fired power plants, the flue gas emission is one of the main sources of atmospheric pollutants, and wet desulfurization towers are widely adopted by the coal-fired power plants. The temperature of the flue gas treated by the wet desulfurization device is 45-55 ℃, and the flue gas contains a large amount of water vapor and is in a saturated state, so that a large amount of latent heat of vaporization is carried. The desulfurizing slurry flash evaporation heat extraction technology is a novel flue gas waste heat recovery technology. The technology utilizes the characteristic that the boiling point of slurry in a wet flue gas desulfurization process can be reduced along with the reduction of the environmental pressure, establishes a vacuum phase change environment, causes the desulfurization slurry above the current negative pressure saturation temperature to flash, generates negative pressure steam to carry vaporization latent heat and convey the vaporization latent heat into a heat pump to condensate and release heat to a low-temperature medium, thereby realizing clean, efficient and low-cost recovery of the residual heat of the desulfurization slurry. The technology can realize the multiple purposes of saving energy and water, improving desulfurization efficiency and eliminating smoke plume visual pollution, and can simultaneously realize energy conservation and emission reduction.

The desulfurizing slurry flash distillation work needs to be added with a plurality of large-sized devices such as a flash tower, an absorption heat pump, a slurry circulating pump, a slurry tank, a control cabinet and the like, and a large number of steam pipelines, hot water pipelines and the like, and for the large-sized devices, especially the large-sized flash tower, a small-sized factory building is usually needed to be additionally arranged, the large-sized devices are managed, and an air conditioner and a heating system of the factory building are designed, so that the operation of the devices in a proper temperature environment is ensured. In the traditional heating mode, a common radiator (radiator) is often adopted for heating, the radiator is dispersedly arranged on the wall side of a factory building, and hot water is introduced in winter for heating; the cooling is performed by adopting a split air conditioner or a multi-split air conditioner and starting the air conditioner in summer. The indoor temperature adjusting method has the following defects: firstly, a radiator is adopted for heating or a cooling device is adopted for cooling, as the areas of the radiator and the cooling device are smaller, the area of a factory building is larger, the device is concentrated in an inner area, and the heating or the cooling of the whole factory building, all people and indoor storage devices cannot be accurately covered, so that the heat exchange efficiency is low; secondly, the heating and the summer cooling air conditioner are separated, two sets of equipment are needed, the equipment is complex, and one hot water is needed to be led out for heating for a newly built factory building.

Disclosure of Invention

In order to overcome the technical defects, the invention provides a room temperature regulating system of a waste heat recovery plant and a working method thereof, which can solve the technical problems that the areas of a radiator and refrigerating equipment in the existing room temperature regulating system are smaller, the area of the plant is larger, the equipment is concentrated in an inner area, and the heating or refrigerating of the whole plant, all people and indoor storage equipment cannot be accurately covered.

In order to achieve the above purpose, the present invention adopts the following technical contents:

The room temperature regulating system of the waste heat recovery plant comprises a working medium circulation channel, wherein the working medium circulation channel is arranged in a wall body of the waste heat recovery plant and comprises at least one working medium inlet which is communicated with a cold/heat source; the cold/heat source is used for conveying cold/heat working medium to the working medium circulation channel so as to regulate the room temperature of the waste heat recovery plant; wherein, waste heat recovery factory building wall body is waste heat recovery factory building's interior wall.

Further, the waste heat recovery plant is divided into a first area for placing a flash tank and a second area for storing plant equipment according to the left and right or front and back; the working medium circulation channel comprises a main channel arranged in a wall body between the first area and the second area, and the main channel is perpendicular to the ground of the waste heat recovery factory building.

Further, the main channel is communicated with at least 1 branch pipeline, and the branch pipeline is distributed in the interlayer wall body of the first area and/or the interlayer wall body of the second area.

Further, communication is formed between every two adjacent branch pipes.

Further, a plurality of diffusers are arranged on the main channel, and/or a plurality of diffusers are arranged on the branch pipelines; a balance valve is arranged between the main channel and the branch pipeline.

Further, the main channel and the branch channel are both arranged in the inner wall of the waste heat recovery plant.

Further, the top end of the main channel extends to the top of the waste heat recovery plant, the bottom end extends to the bottom of the waste heat recovery plant, and control valves are respectively arranged at the two ends; the control valve is positioned at the top end of the main channel and used for communicating the main channel with the outdoor atmosphere, and the control valve is positioned at the bottom end of the main channel and used for communicating the main channel with the indoor space; when both air valves are fully opened, the main channel can form a chimney effect for exhausting indoor hot air from bottom to top to the outside along the main channel.

Further, the wall body of the waste heat recovery factory building adopts a hollow structure to form a gas cavity, and the gas cavity is used as a working medium circulation channel of the system; the cold/heat source correspondingly adopts a gas working medium.

Further, the room temperature regulating system further comprises a cold and heat source equipment room positioned in the waste heat recovery factory building, wherein cold and heat source control equipment is arranged in the cold and heat source equipment room and used for automatically controlling a cooling/heating source to convey a cooling/heating working medium to the working medium circulation channel according to an indoor temperature state.

The working method of the room temperature regulating system of the waste heat recovery plant comprises the following steps of:

The cold/heat source conveys cold/heat working medium to the working medium circulation channel in the waste heat recovery plant wall body through the working medium inlet so as to realize heat exchange between indoor air and the waste heat recovery plant wall body and realize indoor temperature regulation of the waste heat recovery plant.

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

The invention provides a room temperature regulating system of a waste heat recovery plant, which adopts a working medium circulation channel, and presets the working medium circulation channel in an inner wall of the waste heat recovery plant in advance, wherein a working medium inlet for communicating with a cold/heat source is formed in the working medium circulation channel, when the indoor temperature needs to be regulated, one end of the cold/heat source is started, and cold/heat working medium is conveyed to the working medium circulation channel in the wall of the waste heat recovery plant through the working medium inlet so as to realize heat exchange between indoor air and the wall of the waste heat recovery plant, so that the indoor temperature of the waste heat recovery plant is regulated; because the working medium circulation channel is arranged in the inner wall of the factory building and does not directly exchange heat with the external air, compared with the traditional heat dissipation mode, the heat dissipation device increases the contact area between the cold and heat sources and the indoor air, improves the heat exchange efficiency, and can accurately cover the heating or refrigerating of the whole factory building, all people and indoor storage equipment; the energy loss of the cold/heat source is reduced, and the purpose of energy saving is achieved; meanwhile, the system can realize heating in winter and cooling in summer by adopting one set of system without adding extra equipment, and the heating and the cooling are organically combined; the working medium flow channel is arranged in the wall body, so that the internal area of the factory building is not occupied, and the space of the factory building is saved; the system has simple structure and principle, is convenient to implement and operate, and has good popularization and application values.

Preferably, in the invention, the working medium circulation channel adopts the main channel in the wall body between the first area and the second area, and because the main channel is arranged in the wall body between the first area and the second area, compared with the traditional mode of arranging the radiator at the inner side of the outer wall edge of the factory building, the system can prevent a large amount of heat from being dissipated to the outside of the factory building at the outer wall, reduce heat loss and greatly improve heat supply efficiency.

Still preferably, in the present invention, the first area and the second area may have a multi-layer structure, and branch pipes are distributed in an interlayer wall and are communicated with the main channel, so that temperature adjustment of each indoor area can be ensured, and full coverage in a factory building can be realized.

Further preferably, in the invention, the main channel and the branch pipelines are arranged on the inner wall of the waste heat recovery plant, so that the contact with the wall body positioned at the outer side of the plant can be avoided as much as possible, all cold and heat can enter the room as much as possible, the heat diffusion to the outside is avoided, and the energy loss is further reduced.

Still preferably, in the present invention, the top end of the main channel extends to the top of the waste heat recovery plant, the bottom end extends to the bottom of the waste heat recovery plant, that is, the main channel is located in an atrium wall body vertically penetrated by the plant, and control valves for communicating with the outdoor atmosphere and with the indoor space are respectively arranged at the upper end and the lower end, in summer, the upper control valve and the lower control valve are opened, hot air is discharged from the indoor space from bottom to top through a hot pressing effect to take away the indoor redundant heat; in winter, the upper control valve and the lower control valve are closed, hot-pressing ventilation is stopped, and as much heat as possible is reserved in a room; therefore, the natural ventilation effect of a large factory building can be utilized to the greatest extent, the cold and heat quantity is saved, and the use of cold/heat sources can be reduced as much as possible in transitional seasons.

Preferably, in the invention, the wall body of the waste heat recovery factory building adopts a hollow structure to form a gas cavity, and the cold/heat source correspondingly adopts a gas working medium, so that compared with the traditional method of adopting a liquid working medium to supply cold or heat, the invention can effectively prevent the risk of wetting and inundation damage to equipment in the factory building caused by water leakage, pipe explosion and other phenomena or the condensation phenomenon of the split air conditioner, and effectively ensure the safety.

Preferably, in the invention, the system is also provided with the cold and heat source equipment room, so that the indoor temperature state can be automatically acquired, the indoor temperature can be automatically regulated according to the data, the indoor temperature can be remotely monitored and controlled by the arrangement of the cold and heat source equipment room, and the automation and intelligent performance of the room temperature regulating system are improved.

The invention also provides a working method of the room temperature regulating system of the waste heat recovery plant, based on the room temperature regulating system of the waste heat recovery plant, the method can effectively solve the problems that the areas of a radiator and refrigerating equipment in the existing room temperature regulating system are smaller, the area of the plant is larger, the equipment is concentrated in an inner area, and the heating or refrigerating of the whole plant, all personnel and indoor storage equipment cannot be accurately covered; the method has simple working principle and is convenient to operate and implement.

Drawings

Fig. 1 is a schematic structural diagram of a room temperature adjusting system of a waste heat recovery plant according to an embodiment of the present invention.

Reference numerals:

a flash tank-1; a first region-2; a second region-3; a main channel-4; a diffuser-5; a control valve-6; a balancing valve-7; and a cold and heat source equipment room-8.

Detailed Description

In order to make the technical problems, technical schemes and beneficial effects solved by the invention more clear, the following specific embodiments are used for further describing the invention in detail. It should be understood that the specific embodiments described herein are for purposes of illustration only and are not intended to limit the scope of the invention.

For the purpose of making the objects, technical solutions and advantages of the embodiments of the present invention more apparent, the technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention, and it is apparent that the described embodiments are some embodiments of the present invention, but not all embodiments of the present invention. The components of the embodiments of the present invention generally described and illustrated in the figures herein may be arranged and designed in a wide variety of different configurations.

Thus, the following detailed description of the embodiments of the invention, as presented in the figures, is not intended to limit the scope of the invention, as claimed, but is merely representative of selected embodiments of the invention. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.

It should be noted that: like reference numerals and letters denote like items in the following figures, and thus once an item is defined in one figure, no further definition or explanation thereof is necessary in the following figures.

In the description of the embodiments of the present invention, it should be noted that, if the terms "upper," "lower," "horizontal," "inner," and the like indicate an azimuth or a positional relationship based on the azimuth or the positional relationship shown in the drawings, or the azimuth or the positional relationship in which the inventive product is conventionally put in use, it is merely for convenience of describing the present invention and simplifying the description, and does not indicate or imply that the apparatus or element to be referred to must have a specific azimuth, be configured and operated in a specific azimuth, and thus should not be construed as limiting the present invention. Furthermore, the terms "first," "second," and the like, are used merely to distinguish between descriptions and should not be construed as indicating or implying relative importance.

Furthermore, the term "horizontal" if present does not mean that the component is required to be absolutely horizontal, but may be slightly inclined. As "horizontal" merely means that its direction is more horizontal than "vertical", and does not mean that the structure must be perfectly horizontal, but may be slightly inclined.

In the description of the embodiments of the present invention, it should also be noted that, unless explicitly specified and limited otherwise, the terms "disposed," "mounted," "connected," and "connected" should be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communication between two elements. The specific meaning of the above terms in the present invention can be understood by those of ordinary skill in the art according to the specific circumstances.

The invention is described in further detail below with reference to the attached drawing figures:

Example 1

In combination with the background technology, in the traditional heating mode, a common radiator (radiator) is often adopted for heating, and the radiator is dispersedly arranged on the wall body side of a factory building, and hot water is introduced in winter for heating; the cooling is performed by adopting a split air conditioner or a multi-split air conditioner and starting the air conditioner in summer. The indoor temperature adjusting method has the following defects:

firstly, heating and cooling air conditioning in summer are separated, two sets of equipment are needed, the equipment is complex, and one hot water is needed to be led out for heating for a newly built factory building;

Secondly, adopt the radiator heating, the area of radiator is less, and the factory building area is great, and equipment concentrates in the inside region, and the heating equipment can't accurately cover the heating of whole factory building, whole personnel and equipment.

Thirdly, the radiator is often arranged on the inner side of the outer wall edge of the factory building, so that a large amount of heat is dissipated to the outside of the factory building at the outer wall, and heat cannot be effectively supplied.

Fourth, the area of the cooling equipment is smaller, and the cooling equipment cannot effectively cover the cooling requirements of the whole factory.

Fifth, once the radiator leaks water, bursts pipe, or the split air conditioner congeals water, the risk of damage to the equipment in the factory is caused.

In order to solve the above problems, the present embodiment provides a room temperature adjusting system of a waste heat recovery plant, which increases the contact area of heat exchange, integrates the functions of cooling and heating, improves the heat exchange efficiency, and achieves the purpose of energy saving.

The embodiment provides a room temperature regulating system of a waste heat recovery plant, which comprises a working medium circulation channel arranged in a wall body of the waste heat recovery plant, wherein a working medium in the working medium circulation channel adopts a gas working medium; at least one working medium inlet is formed in the working medium flowing channel, the working medium inlet is externally connected with a cold/heat source, the cold/heat source is integrally managed, the safety is improved, meanwhile, the operation, maintenance, overhaul and other works of the system are convenient, and the waste heat recovery factory building wall is an inner wall of the waste heat recovery factory building.

When the indoor temperature needs to be adjusted, cold/heat sources convey cold/heat working media to a working medium circulation channel in the waste heat recovery plant wall body through a working medium inlet so as to enable indoor air to exchange heat with the waste heat recovery plant wall body, and therefore indoor temperature adjustment of the waste heat recovery plant is achieved.

Compared with the traditional heat dissipation mode, the heat dissipation type indoor heat exchanger has the advantages that the working medium circulation channel is arranged in the wall body, so that the contact area of a cold source and indoor air is increased, the heat exchange efficiency is improved, and heating or refrigerating of a whole factory building, all people and indoor storage equipment can be accurately covered; the energy loss of the cold/heat source is reduced, and the purpose of energy saving is achieved; meanwhile, the system can realize heating in winter and cooling in summer by adopting one set of system without adding extra equipment, and the heating and the cooling are organically combined; and set up working medium circulation passageway in the cooperation wall, do not occupy factory building inner area, saved factory building space.

Example 2

As shown in fig. 1, the present embodiment provides a room temperature adjusting system for a waste heat recovery plant on the basis of embodiment 1, and the specific structure is as follows:

as shown in fig. 1, in the waste heat recovery system, a flash tank 1 is a key component for flash evaporation of desulfurization slurry, and is generally large in volume and high in height, and a tank body of the flash tank 1 is separately placed in 1-2 layers of space in a factory building to form a first area 2 of a building high-large space which is communicated up and down.

The remaining equipment is placed in a second area 3 of the building space in other areas of other floors in the building. The layer height of the second region 3 is typically one layer.

A working medium circulation channel for realizing room temperature adjustment is arranged in a wall body of the factory building; the working medium circulation channel comprises a main channel 4, and the main channel 4 is arranged in a wall body between the first area 2 and the second area 3; and is arranged vertically to the ground of the factory building; the main channel 4 is provided with a working medium inlet for connection with a cold/heat source.

As shown in fig. 1, the second area 3 is divided into three layers, and branch pipelines communicated with the main channel 4 are arranged in the wall body between two adjacent layers, namely, the parallel floor slab and the vertical floor slab.

At the end of each branch conduit a diffuser 5 is provided.

In this embodiment, communication is formed between the horizontal floor and the vertical floor, and the adjustment is performed by the balance valve 7 provided between the main channel 4 and the branch pipe in the wall. In this way, the adjustability of the supply of cold and heat can be increased. The balance valve 7 is remotely controlled by a solenoid valve.

In this embodiment, the main channel 4 may be hollow in the wall body to form a gas cavity, and the gas cavity corresponds to a cold/heat source to be conveyed as a gas working medium, or may be a metal pipeline (with good heat conduction characteristics) nested in the wall body, so that compared with the traditional method of adopting a liquid working medium to perform cooling or heating, the phenomenon of water leakage, pipe explosion and the like or the phenomenon of condensation of a split air conditioner can be effectively prevented, the risk of damage to equipment in a factory building caused by damp and inundation is caused, and the safety is effectively ensured.

The main channel 4 adopts a hollow channel formed by the concrete wall body, and can be used for ventilation. The hot/cold air in the main channel 4 heats/cools the wall by heat conduction and then supplies cold/heat to the room by long wave radiation, convection heat transfer. The area of the heat supply source for cooling by adopting the system is obviously larger than that of the original radiator scheme, so that the heat exchange between the cold/heat source and the indoor space can be better realized. Further, because the cooling/heating quantity is in positive correlation with the area of the cooling/heating source, the heat exchange coefficient and the temperature difference, when the heat exchange coefficient is unchanged, the area of the cooling/heating source is increased, the temperature difference between the required cooling/heating source and indoor air can be effectively reduced, and the efficiency of the air source heat pump serving as the cooling/heating source is improved.

In the embodiment, all the heat supply/cold supply media are changed from hot/cold water to hot/cold air, so that the safety of the scheme is improved.

In this embodiment, the cooling/heating principle is similar to that of a conventional radiant floor, but the channels for transferring the cold and heat are changed from the floor to the wall. The scheme also effectively avoids the defects of large floor area, high supporting strength and difficult whole ground laying of the factory building.

As another preferable scheme of the embodiment, the main channel 4 and the branch channels are only additionally arranged in the inner wall, so that all cold and heat can directly enter the room as much as possible, heat diffusion to the outside is avoided, and energy loss is reduced.

In this embodiment, after the wall is fully heated, the temperature of the remaining air is still higher than that of the air, and the heat supply capability is provided, so that the diffuser 5 at the end of the branch pipeline is opened, and the remaining air is sent into the room to continue to supply heat; similarly, when the temperature of the air is lower than the temperature of the air, the air cooling capability is provided, and the diffuser 5 is opened to send the cold air into the room for further cooling. Therefore, the system tenderizes and consolidates the cold and heat supply capacity of the residual air to the greatest extent, and enables the cold and hot air to be finally circulated back into the room, so that the positive pressure is kept in the room, and pollutants and outdoor cold and hot air enter the room as little as possible.

In addition, in this embodiment, the system further provides a cold and heat source equipment room 8, which includes cold and heat source equipment, and cold/hot air in the whole room can be supplied by an air source heat pump shared in winter and summer in the cold and heat source equipment room 8; hot/cold air which can circulate in the pipeline 4 can be generated by the combination of an air source heat pump, a wind-water heat exchanger and a fan; the cold and heat source equipment room 8 has the advantages that the cold and heat source is centrally managed, other water branches are not involved, and the safety of cold supply and heat supply is improved.

As a further preferable scheme of the embodiment, in the system, a control valve 6 for natural ventilation is arranged on a main channel 4 vertically penetrating a tall atrium, and in summer, the upper and lower control valves 6 are opened, hot air is discharged from bottom to top into a room through a hot pressing effect (also called a chimney effect), and the effect of taking away excessive heat in the room is achieved; in winter, the upper and lower control valves 6 are closed, and the hot-pressing ventilation is stopped, so that as much heat as possible is stored in the room. The scheme can utilize the natural ventilation function of a large factory building to the greatest extent, saves cold and heat, and can also reduce the use of cold and heat sources as much as possible in transitional seasons.

In the embodiment, the whole part of the air conditioning unit and the heating radiator of the original factory building and the pipeline thereof are eliminated; the water leakage and pipe explosion risks possibly caused in the original scheme are effectively avoided, all cold and heat supply waterways are eliminated, and the cold and heat supply safety is effectively improved. Compared with a radiator and a radiator, the area of contact between the cold source and the indoor air is increased, so that the water supply temperature of the needed hot water is reduced, the water supply temperature of the needed cold water is increased, and the temperature of the hot air obtained by the wind-water heat exchanger is increased, the refrigerating/heating efficiency of the air source heat pump is increased, and the aim of saving energy is achieved.

In addition, it should be noted that the main channel 4 can be completely replaced by 2 cold/hot water pipelines, which are respectively used for supplying water and returning water, laid and embedded in the concrete wall body, and the inner wall and the floor slab can be heated by heat conduction to supply cold and heat indoors, so that the risk of water leakage is avoided because the pipelines are arranged in the wall body, and all the advantages of taking air as a medium can be realized. But the difference is that the dissipation flow device 5 is needed to be taken, a same-path water return pipeline is arranged, and meanwhile, in the cold and heat source 8, the wind-water heat exchanger for exchanging heat between the original air source heat pump and the air is changed into a water-water heat exchanger so as to heat the circulating working medium water by the air source heat pump.

In summary, the invention provides a room temperature regulating system of a waste heat recovery plant and a working method thereof, and compared with the room temperature regulating measures of the existing plant, the system has the following advantages:

The room temperature regulating system adopts a working medium flow channel, the working medium flow channel is preset in the wall body of the waste heat recovery plant in advance, a working medium inlet for communicating with a cold/heat source is formed in the working medium flow channel, when the indoor temperature needs to be regulated, one end of the cold/heat source is started, and cold/heat working medium is conveyed to the working medium flow channel in the wall body of the waste heat recovery plant through the working medium inlet so as to realize heat exchange between indoor air and the wall body of the waste heat recovery plant, so that the indoor temperature of the waste heat recovery plant is regulated; compared with the traditional heat dissipation mode, the heat dissipation type indoor heat exchanger has the advantages that the working medium circulation channel is arranged in the wall body, so that the contact area of a cold source and indoor air is increased, the heat exchange efficiency is improved, and heating or refrigerating of a whole factory building, all people and indoor storage equipment can be accurately covered; the energy loss of the cold/heat source is reduced, and the purpose of energy saving is achieved; meanwhile, the system can realize heating in winter and cooling in summer by adopting one set of system without adding extra equipment, and the heating and the cooling are organically combined; the working medium flow channel is arranged in the wall body, so that the internal area of the factory building is not occupied, and the space of the factory building is saved; the system has simple structure and principle, is convenient to implement and operate, and has good popularization and application values.

The above embodiment is only one of the implementation manners capable of implementing the technical solution of the present invention, and the scope of the claimed invention is not limited to the embodiment, but also includes any changes, substitutions and other implementation manners easily recognized by those skilled in the art within the technical scope of the present invention.

Claims (10)

1. The room temperature regulating system of the waste heat recovery plant is characterized by comprising a working medium circulation channel, wherein the working medium circulation channel is arranged in a wall body of the waste heat recovery plant and comprises at least one working medium inlet which is communicated with a cold/heat source; the cold/heat source is used for conveying cold/heat working medium to the working medium circulation channel so as to regulate the room temperature of the waste heat recovery plant; wherein, waste heat recovery factory building wall body is waste heat recovery factory building's interior wall.

2. Room temperature conditioning system of a waste heat recovery plant according to claim 1, characterized in that the waste heat recovery plant is divided according to left-right or back-and-forth into a first area (2) for placing flash tanks (1) and a second area (3) for storing plant equipment; the working medium circulation channel comprises a main channel (4) arranged in a wall body between the first area (2) and the second area (3), and the main channel (4) is perpendicular to the ground of the waste heat recovery factory building.

3. Room temperature conditioning system of a waste heat recovery plant according to claim 2, characterized in that the main channel (4) is connected with at least 1 branch pipe, distributed in the inter-layer walls of the first zone (2) and/or in the inter-layer walls of the second zone (3).

4. A room temperature conditioning system for a waste heat recovery plant according to claim 3, wherein communication is established between every two adjacent branch ducts.

5. A room temperature conditioning system of a waste heat recovery plant according to claim 3, characterized in that the main channel (4) is provided with a number of diffusers (5) and/or the branch pipe is provided with a number of diffusers (5); a balancing valve (7) is arranged between the main channel (4) and the branch pipeline.

6. Room temperature conditioning system of a waste heat recovery plant according to any of claims 2 to 5, characterized in that the main channel (4) and the branch pipe are both provided in the inner wall of the waste heat recovery plant.

7. Room temperature regulating system of a waste heat recovery plant according to claims 2 to 6, characterized in that the top end of the main channel (4) extends to the top of the waste heat recovery plant, the bottom end extends to the bottom of the waste heat recovery plant, and control valves (6) are respectively arranged at both ends; the control valve (6) is positioned at the top end of the main channel (4) and used for communicating the main channel with the outdoor atmosphere, and the control valve (6) is positioned at the bottom end of the main channel (4) and used for communicating the main channel (4) with the indoor space; when both air valves are fully opened, the main channel (4) can be made to form a chimney effect for exhausting indoor hot air from bottom to top to the outside along the main channel (4).

8. The room temperature regulating system of a waste heat recovery plant according to claim 1, wherein a wall of the waste heat recovery plant adopts a hollow structure to form a gas cavity, and the gas cavity is used as a working medium circulation channel of the system; the cold/heat source correspondingly adopts a gas working medium.

9. The room temperature regulating system of a waste heat recovery plant according to claim 1, further comprising a cold and heat source equipment room (8) located inside the waste heat recovery plant, wherein cold and heat source control equipment is arranged in the cold and heat source equipment room (8), and the cold and heat source control equipment is used for automatically controlling a cooling/heating source to convey a cooling/heating working medium to the working medium circulation channel according to an indoor temperature state.

10. A method of operating a room temperature conditioning system of a waste heat recovery plant, based on the room temperature conditioning system of any one of claims 1-9, comprising:

The cold/heat source conveys cold/heat working medium to the working medium circulation channel in the waste heat recovery plant wall body through the working medium inlet so as to realize heat exchange between indoor air and the waste heat recovery plant wall body and realize indoor temperature regulation of the waste heat recovery plant.