CN210736165U

CN210736165U - Low-temperature flue gas waste heat comprehensive utilization system in bottled beverage production

Info

Publication number: CN210736165U
Application number: CN201921158501.7U
Authority: CN
Inventors: 韩爽; 王晓东; 刘大庆; 李伟
Original assignee: Tongfang Energy Saving Equipment Co ltd
Current assignee: Tongfang Energy Saving Equipment Co ltd
Priority date: 2019-07-23
Filing date: 2019-07-23
Publication date: 2020-06-12
Anticipated expiration: 2029-07-23

Abstract

The utility model discloses a low temperature flue gas waste heat comprehensive utilization system in bottled beverage production, including first heater, cooling mixing liquid filling machine, direct contact gas heater, bottle blowing device exhaust pipe, absorption heat pump, the absorption heat pump includes generator, first condenser, second condenser, first evaporimeter and first absorber, and generator, direct contact heat exchanger, bottle blowing device and bottle blowing device exhaust pipe link to each other and form the waste heat utilization circulation. The first heater, the first condenser and the first absorber are sequentially connected to form a heating channel. The second condenser is connected with the cooling filling machine, carbon dioxide is introduced to complete filling, and the first evaporator is connected with the cooling filling machine to form a cooling circulation. The method and the system for comprehensively utilizing the low-temperature flue gas waste heat in the production of the bottled beverage improve the comprehensive utilization rate of energy in the production process of the beverage, reduce the energy consumption and the production cost and reduce the emission of pollutants by recycling the flue gas waste heat of bottle blowing.

Description

Low-temperature flue gas waste heat comprehensive utilization system in bottled beverage production

Technical Field

The utility model relates to a bottled drink production technical field especially relates to a low temperature flue gas waste heat comprehensive utilization system in bottled drink production.

Background

The annual energy consumption of the beverage industry in China reaches 1475.74 ten thousand tons of standard coal, and accounts for about 20 percent of the energy consumption of the food industry. In conventional beverage production processes, large quantities of steam are consumed for heating the process water for use by the hot process units. There are also a large number of process units that require cooling, and the cold water consumed is commonly supplied by, for example, a chiller. The bottle blowing process in the beverage production consumes a large amount of electric power for processing beverage bottles and generates a large amount of low-temperature smoke which is directly discharged to the outdoor environment. Therefore, how to efficiently recover the waste heat of the flue gas, fully and comprehensively utilize the cold and hot energy in the beverage production process, and improve the comprehensive energy utilization rate in the production becomes a technical problem to be solved urgently.

SUMMERY OF THE UTILITY MODEL

The utility model aims at providing a low temperature flue gas waste heat comprehensive utilization system in bottled beverage production to solve the problem that above-mentioned prior art exists, heat energy in the low temperature flue gas that absorption heat pump unit recycle bottle blowing technology discharged is as the driving energy, draws the heat in the all kinds of production technology of follow bottled beverage, and the temperature through absorption heat pump unit promotes for supply with the demand to heat energy in all kinds of production technology. The method and the system reduce the energy consumption and the production cost in the bottled beverage production process and reduce the pollution to the environment.

In order to achieve the above object, the utility model provides a following scheme: the utility model provides a comprehensive utilization system for low-temperature flue gas waste heat in bottled beverage production, which comprises a first heater, a cooling mixing filling machine, a direct contact type flue gas heat exchanger, a bottle blowing device smoke exhaust pipe and an absorption heat pump unit; the absorption heat pump unit comprises a generator, a first condenser, a second condenser, a first evaporator and a first absorber; the first heater is sequentially connected with the first absorber and the first condenser through heating circulating media, waste heat circulating media are introduced into the generator and used for driving the absorption heat pump unit to do work, the generator is connected with the direct contact type smoke heat exchanger, the direct contact type smoke heat exchanger is connected with a smoke exhaust pipe of the bottle blowing device at the top of the bottle blowing device in a bypass mode, the cooling mixing filling machine is used for cooling and filling mixed beverage liquid and carbon dioxide gas, the cooling mixing filling machine is connected with the first evaporator through cooling circulating media, the second condenser is connected with the cooling mixing filling machine through carbon dioxide liquid, and the cooling mixing filling machine is filled with carbon dioxide gas after vaporization and heat absorption to complete mixed filling of beverages.

Further, the direct contact type flue gas heat exchanger is used for absorbing heat in low-temperature smoke exhaust of the bottle blowing device, and the cooled flue gas returns to a smoke exhaust pipe of the bottle blowing device through a bypass connecting pipeline and is exhausted to the outdoor environment; the generator is used for driving the absorption heat pump unit to do work, the waste heat circulating medium is introduced into the generator through the connecting pipeline, returns to the direct contact type flue gas heat exchanger after being cooled, and is heated by low-temperature flue gas again to complete the flue gas waste heat recovery process.

Further, the first evaporator is used for absorbing heat in a cooling circulation medium, and the cooled cooling circulation medium is introduced into the cooling mixing filling machine through a connecting pipeline to cool the mixed beverage liquid; the second condenser is used for heating carbon dioxide liquid, the heated carbon dioxide liquid is introduced into the cooling and mixing filling machine through a connecting pipeline after being subjected to phase change vaporization, and the mixed beverage liquid is aerated and filled.

Furthermore, the first absorber is sequentially connected with the first condenser, heat is released to the passing heating circulating medium, the heated heating circulating medium is introduced into the first heater through the connecting pipeline, the first heater is used for heating bottled beverages, and the heat in the heating circulating medium is released to the bottled beverages through the circulating pipeline.

The utility model provides a low temperature flue gas waste heat comprehensive utilization system in bottled beverage production still includes second heater, third heater, first cooler, second evaporimeter and second absorber, the second heater passes through heating cycle medium with first absorber, second absorber and first condenser and links to each other in proper order, the third heater is used for the bactericidal treatment of syrup, saturated steam and syrup let in the third heater can disinfect to syrup, the first cooler is used for the syrup after the precooling sterilization, the first cooler passes through cooling cycle medium with first evaporimeter and links to each other, the second cooler is used for cooling syrup to the settlement temperature, the second cooler passes through cooling cycle medium with the second evaporimeter and links to each other, syrup loops through second heater, third heater, first cooler and second cooler, the syrup is preheated, sterilized, precooled and cooled.

Further, the first evaporator is used for absorbing heat in the cooling circulation medium, the cooled cooling circulation medium is introduced into the first cooler through a connecting pipeline, and the first cooler precools the syrup to a set temperature; the second evaporator is used for absorbing heat in the cooling circulation medium, the cooled cooling circulation medium is introduced into the second cooler through a connecting pipeline, and the second cooler cools the syrup to a set temperature.

Further, the first absorber, the second absorber and the first condenser are sequentially connected to release heat to the passing heating circulating medium, the heated heating circulating medium is introduced into the second heater through a connecting pipeline, the second heater is used for preheating syrup liquid, and the heat in the heating circulating medium is released to the syrup liquid through a circulating pipeline.

The utility model provides a low temperature flue gas waste heat comprehensive utilization system in bottled beverage production still includes empty bottle cooler, second evaporimeter and second absorber, empty bottle cooler passes through the cooling circulation medium with first evaporimeter and links to each other, the cooling mixing liquid filling machine passes through the cooling circulation medium with the second evaporimeter and links to each other, first heater passes through the heating circulation medium with first absorber, second absorber and first condenser and links to each other in proper order, accomplishes the thermal treatment to bottled beverage.

Further, the first evaporator is used for absorbing heat in a cooling circulating medium, the cooled cooling circulating medium is introduced into the empty bottle cooler through a connecting pipeline, and the empty bottle cooler is used for cooling an empty bottle; the second evaporator is used for absorbing heat in the cooling circulation medium, and the cooled cooling circulation medium is introduced into the cooling mixing filling machine through a connecting pipeline to cool the mixed beverage liquid.

Furthermore, the first absorber, the second absorber and the first condenser are sequentially connected to release heat to the passing heating circulating medium, the heated heating circulating medium is introduced into the first heater through the connecting pipeline, the first heater is used for heating bottled beverages, and the heat in the heating circulating medium is released to the bottled beverages through the circulating pipeline.

The utility model discloses for prior art gain following technological effect:

firstly, the low-temperature smoke heat discharged by a bottle blowing process in the beverage production process is fully recovered, and the absorption heat pump is driven to operate on the premise of no additional energy consumption. Secondly, cooling water in various production processes of bottled beverages is fully utilized, heat is extracted and used for heating circulating hot water and supplying the circulating hot water to various heat using process units, and therefore the using amount of steam for heating is reduced. And thirdly, the cooling water extracted with heat by the system is completely cooled to set temperatures used by different functions, so that the system replaces the traditional refrigerating unit as a cold source, high-quality electric energy is not required to be consumed, and the production cost is reduced. Fourthly, compared with the traditional bottled beverage production mode, the method greatly improves the comprehensive energy utilization efficiency in the bottled beverage production process, reduces the energy consumption and the production cost, and reduces the pollution to the environment. Fifthly, the production process of the bottled beverage combines the carbon dioxide heating and boosting treatment process, so that the extra energy consumption caused by carbon dioxide treatment is completely eliminated, and the economic and environmental protection benefits are improved for enterprises.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required to be used in the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.

FIG. 1 is a schematic diagram of a basic flow chart of the first embodiment;

FIG. 2 is a schematic diagram of the basic flow of the second embodiment;

FIG. 3 is a schematic diagram of the basic flow of the third embodiment;

1-1, a first heater; 1-2, cooling, mixing and filling a machine; 1-3, a first heater water outlet pipe; 1-4, a first heater water inlet pipe; 1-5, cooling, mixing and filling a water outlet pipe of a filling machine; 1-6, cooling, mixing and filling the water inlet pipe of the filling machine; 1-7, a gaseous carbon dioxide inlet pipe; 1-8, conveying a bottled beverage belt; 1-10, absorption heat pump set; 1-101, a generator; 1-102, a first condenser; 1-103, a second condenser; 1-104, a first evaporator; 1-105, a first absorber; 1-20, direct contact type flue gas heat exchanger; 1-21, a bottle blowing device; 1-22, generator outlet pipe; 1-23, a generator water inlet pipe; 1-24, blowing a bottle device smoke exhaust pipe; 2-3, a water outlet pipe of a second heater; 2-4, a water inlet pipe of a second heater; 2-5, a first cooler water outlet pipe; 2-6, a first cooler water inlet pipe; 2-9, a second heater; 2-10, absorption heat pump set; 2-101, a generator; 2-102, a first condenser; 2-104, a first evaporator; 2-105, a first absorber; 2-106, a second absorber; 2-107, a second evaporator; 2-11, a third heater; 2-12, a first cooler; 2-13, a second cooler; 2-14, a second cooler water outlet pipe; 2-15, a second cooler water inlet pipe; 2-16, syrup conveying pipe; 2-20, direct contact type flue gas heat exchanger; 2-21, a bottle blowing device; 2-22, a generator water outlet pipe; 2-23, a generator water inlet pipe; 2-24, blowing a smoke exhaust pipe of a bottle blowing device; 3-1, a first heater; 3-2, cooling, mixing and filling the machine; 3-3, a first heater water outlet pipe; 3-4, a first heater water inlet pipe; 3-5, an outlet pipe of the empty bottle cooler; 3-6, an empty bottle cooler water inlet pipe; 3-7, a gaseous carbon dioxide inlet pipe; 3-8, conveying a bottled beverage belt; 3-10, absorption heat pump set; 3-101, a generator; 3-102, a first condenser; 3-103, a second condenser; 3-104, a first evaporator; 3-105, a first absorber; 3-106, a second absorber; 3-107, a second evaporator; 3-17, cooling, mixing and filling the water outlet pipe of the filling machine; 3-18, cooling, mixing and filling the water inlet pipe of the filling machine; 3-19, an empty bottle cooler; 3-20, direct contact type flue gas heat exchanger; 3-21, a bottle blowing device; 3-22, a generator water outlet pipe; 3-23, a generator water inlet pipe; 3-24, and blowing the smoke exhaust pipe of the bottle blowing device.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

In order to make the above objects, features and advantages of the present invention more comprehensible, the present invention is described in detail with reference to the accompanying drawings and the detailed description.

Referring to fig. 1-3, fig. 1 is a basic flow chart of a first embodiment; FIG. 2 is a schematic diagram of the basic flow of the second embodiment; fig. 3 is a basic flow diagram of the third embodiment.

The utility model provides a low temperature flue gas waste heat comprehensive utilization system in bottled beverage production, this low temperature flue gas waste heat comprehensive utilization system's technical scheme is that absorption heat pump unit utilizes the low temperature flue gas heat that bottle blowing technology discharged in the beverage production process as the driving energy. Heat is extracted from various production processes of bottled beverages, and the heat is used for supplying the requirements for heat energy in various production processes through temperature rise of the absorption heat pump unit. And the cooling circulating medium after heat extraction and temperature reduction is circularly used for cooling units of different production processes of bottled beverages.

Example 1

As shown in figure 1, the system comprises a first heater 1-1, a cooling mixing filling machine 1-2, a first heater water outlet pipe 1-3, a first heater water inlet pipe 1-4, a cooling mixing filling machine water outlet pipe 1-5, a cooling mixing filling machine water inlet pipe 1-6, a gaseous carbon dioxide air inlet pipe 1-7, a bottled beverage conveyor belt 1-8, an absorption heat pump unit 1-10 and a generator 1-101, 1-102 parts of first condenser, 1-103 parts of second condenser, 1-104 parts of first evaporator, 1-105 parts of first absorber, 1-20 parts of direct contact type flue gas heat exchanger, 1-21 parts of bottle blowing device, 1-22 parts of generator water outlet pipe, 1-23 parts of generator water inlet pipe, 1-24 parts of bottle blowing device smoke exhaust pipe and accessories thereof. The low-temperature flue gas discharged by the bottle blowing device 1-21 enters the direct contact type flue gas heat exchanger 1-20 through a bypass pipeline of the bottle blowing device exhaust pipe 1-24, is sprayed and cooled by the residual heat water, and then is discharged to the outdoor atmosphere through the bottle blowing device exhaust pipe 1-24, so that the residual heat recovery process is completed. After absorbing the heat of the flue gas and heating up, the waste heat water enters the generators 1-101 of the absorption heat pump through the generator water inlet pipes 1-23 to drive the heat pump units 1-10 to do work, and the cooled low-temperature waste heat water returns to the direct contact type flue gas heat exchangers 1-20 through the generator water outlet pipes 1-22 to complete the waste heat utilization process. The cooling circulation medium from the cooling and mixing filling machine 1-2 enters the first evaporator 1-104 of the absorption heat pump through the water outlet pipe 1-5 of the cooling and mixing filling machine and releases heat. The cooled circulating medium with the extracted heat is cooled to a set temperature and then returned to the cooling and mixing filler 1-2 through the water inlet pipe 1-6 of the cooling and mixing filler for cooling the mixed beverage liquid. Heating circulating media from the first heater 1-1 sequentially enter a first absorber 1-105 and a first condenser 1-102 of the absorption heat pump through a first heater water outlet pipe 1-3, heat extracted from cooling circulating media is released to the heating circulating media by an absorption heat pump unit 1-10, and the heating circulating media are heated to a set temperature and then sent back to the first heater 1-1 through a first heater water inlet pipe 1-4 for heating bottled beverages. Saturated carbon dioxide liquid enters a second condenser 1-103 of the absorption heat pump, is heated and vaporized, then enters a cooling and mixing filling machine 1-2 through a gaseous carbon dioxide air inlet pipe 1-7, is filled into mixed beverage liquid, and bottled beverage after filling is heated to a set temperature through a first heater 1-1 through a bottled beverage conveyor belt 1-8.

Example 2

As shown in figure 2, the system comprises a second heater water outlet pipe 2-3, a second heater water inlet pipe 2-4, a first cooler water outlet pipe 2-5, a first cooler water inlet pipe 2-6, a second heater 2-9, an absorption heat pump unit 2-10, a generator 2-101, a first condenser 2-102, a first evaporator 2-104, a first absorber 2-105, a second absorber 2-106, a second evaporator 2-107, a third heater 2-11, a first cooler 2-12, a second cooler 2-13, a second cooler water outlet pipe 2-14, a second cooler water inlet pipe 2-15, a syrup conveying pipe 2-16, a direct contact type flue gas heat exchanger 2-20, a bottle blowing device 2-21, a generator water outlet pipe 2-22, a direct contact type flue gas heat exchanger 2-20, a bottle blowing device 2-21, and a generator water outlet pipe 2-22, The low-temperature flue gas discharged by the bottle blowing devices 2-21 enters the direct contact type flue gas heat exchanger 2-20 through a bypass pipeline of the bottle blowing device flue gas discharge pipe 2-24, is discharged to the outdoor atmosphere through the bottle blowing device flue gas discharge pipe 2-24 after being sprayed and cooled by the residual heat water, and completes the waste heat recovery process, the residual heat water enters the generator 2-101 of the absorption type heat pump through the generator water inlet pipe 2-23 after absorbing the heat of the flue gas and being heated, drives the heat pump unit 2-10 to do work, and the cooled low-temperature residual heat water returns to the direct contact type flue gas heat exchanger 2-20 through the generator water outlet pipe 2-22 to complete the waste heat utilization process. The cooling circulation medium from the first cooler 2-12 enters the first evaporator 2-104 of the absorption heat pump through the first cooler water outlet pipe 2-5 and releases heat. After being cooled to a set temperature, the cooling circulating medium with the extracted heat is sent back to the first cooler 2-12 through the first cooler water inlet pipe 2-6 for pre-cooling syrup. The cooling circulation medium from the first cooler 2-12 enters the first evaporator 2-104 of the absorption heat pump through the first cooler water outlet pipe 2-5 and releases heat, after the cooling circulation medium with the heat extracted is cooled to a set temperature, the cooling circulation medium is sent back to the first cooler 2-12 through the first cooler water inlet pipe 2-6 for precooling the syrup, and the cooling circulation medium from the second cooler 2-13 enters the second evaporator 2-107 of the absorption heat pump through the second cooler water outlet pipe 2-14 and releases heat. After the cooling circulation medium with the extracted heat is cooled to the set temperature, the cooling circulation medium is sent back to the second cooler 2-13 through the second cooler water inlet pipe 2-15 for further cooling the syrup. The heating circulating medium from the second heater 2-9 sequentially enters the first absorber 2-105, the second absorber 2-106 and the first condenser 2-102 of the absorption heat pump through the second heater water outlet pipe 2-3, the absorption heat pump unit 1-10 releases heat extracted from cooling circulating medium with different temperatures to the heating circulating medium, and the heat is heated to a set temperature and then sent back to the second heater 2-9 through the second heater water inlet pipe 2-4 for heating syrup. The syrup passes through a second heater 2-9, a third heater 2-11, a first cooler 2-12 and a second cooler 2-13 in sequence through a syrup conveying pipe 2-16, heat of a heating circulating medium is absorbed in the second heater 2-9 to reach a preheating temperature, heat of saturated steam is absorbed in the third heater 2-11 to reach a sterilization temperature, heat is released into the cooling circulating medium in the first cooler 2-12 to reach a precooling temperature, and heat is further released into the cooling circulating medium in the second cooler 2-13 to reach a set cooling temperature.

Example 3

As shown in figure 3, the system comprises a first heater 3-1, a cooling mixing filling machine 3-2, a first heater water outlet pipe 3-3, a first heater water inlet pipe 3-4, a gaseous carbon dioxide air inlet pipe 3-7, a cooling mixing filling machine water outlet pipe 3-17, a cooling mixing filling machine water inlet pipe 3-18, a bottled beverage conveyor belt 3-8, an empty bottle cooler 3-19, an empty bottle cooler water outlet pipe 3-5, an empty bottle cooler water inlet pipe 3-6, an absorption heat pump unit 3-10, a generator 3-101, a first condenser 3-102, a second condenser 3-103, a first evaporator 3-104, a second evaporator 3-107, a first absorber 3-105, a second absorber 3-106, a direct contact type flue gas heat exchanger 3-20, 3-21 parts of bottle blowing device, 3-22 parts of generator water outlet pipe, 3-23 parts of generator water inlet pipe, 3-24 parts of bottle blowing device smoke exhaust pipe and accessories thereof. The low-temperature flue gas discharged by the bottle blowing device 3-21 enters the direct contact type flue gas heat exchanger 3-20 through a bypass pipeline of the bottle blowing device smoke discharge pipe 3-24, is sprayed and cooled by the residual heat water, and then is discharged to the outdoor atmosphere through the bottle blowing device smoke discharge pipe 3-24, so that the residual heat recovery process is completed. After absorbing the heat of the flue gas and heating up, the waste heat water enters the generator 3-101 of the absorption heat pump through the generator water inlet pipe 3-23 to drive the heat pump unit 3-10 to do work, and the cooled low-temperature waste heat water returns to the direct contact type flue gas heat exchanger 3-20 through the generator water outlet pipe 3-22 to complete the waste heat utilization process. The cooling circulation medium from the cooling and mixing filling machine 3-2 enters the second evaporator 3-107 of the absorption heat pump through the water outlet pipe 3-17 of the cooling and mixing filling machine and releases heat. The cooled circulating medium from which heat has been extracted is cooled to a set temperature and returned via the cooling-mixing filler inlet pipe 3-18 to the cooling-mixing filler 3-2 for cooling the mixed beverage liquid. The cooling circulation medium from the empty bottle cooler 3-19 enters the first evaporator 3-104 of the absorption heat pump through the empty bottle cooler water outlet pipe 3-5 and releases heat. After the cooling circulating medium with the extracted heat is cooled to the set temperature, the cooling circulating medium is sent back to the empty bottle cooler 3-19 through the empty bottle cooler water inlet pipe 3-6 for cooling the empty bottle.

The heating circulating medium from the first heater 3-1 sequentially enters a first absorber 3-105, a second absorber 3-106 and a first condenser 3-102 of the absorption heat pump through a first heater water outlet pipe 3-3, the absorption heat pump unit 1-10 releases heat extracted from cooling circulating media with different temperatures to the heating circulating medium, and the heat is heated to a set temperature and then sent back to the first heater 3-1 through a first heater water inlet pipe 3-4 for heating bottled beverages. Saturated carbon dioxide liquid enters a second condenser 3-103 of the absorption heat pump, is heated and vaporized, then enters a cooling and mixing filling machine 3-2 through a gaseous carbon dioxide air inlet pipe 3-7, is filled into mixed beverage liquid, and bottled beverage after filling is heated to a set temperature through a bottled beverage conveyor belt 3-8 and a first heater 3-1.

The utility model discloses a concrete example is applied to explain the principle and the implementation mode of the utility model, and the explanation of the above example is only used to help understand the method and the core idea of the utility model; meanwhile, for the general technical personnel in the field, according to the idea of the present invention, there are changes in the concrete implementation and the application scope. In summary, the content of the present specification should not be construed as a limitation of the present invention.

Claims

1. The utility model provides a low temperature flue gas waste heat comprehensive utilization system in bottled drink production which characterized in that: the system comprises a first heater, a cooling mixing filling machine, a direct contact type smoke heat exchanger, a bottle blowing device smoke exhaust pipe and an absorption heat pump unit; the absorption heat pump unit comprises a generator, a first condenser, a second condenser, a first evaporator and a first absorber; the first heater is sequentially connected with the first absorber and the first condenser through heating circulating media, waste heat circulating media are introduced into the generator and used for driving the absorption heat pump unit to do work, the generator is connected with the direct contact type smoke heat exchanger, the direct contact type smoke heat exchanger is connected with a smoke exhaust pipe of the bottle blowing device at the top of the bottle blowing device in a bypass mode, the cooling mixing filling machine is used for cooling and filling mixed beverage liquid and carbon dioxide gas, the cooling mixing filling machine is connected with the first evaporator through cooling circulating media, the second condenser is connected with the cooling mixing filling machine through carbon dioxide liquid, and the cooling mixing filling machine is filled with carbon dioxide gas after vaporization and heat absorption to complete mixed filling of beverages.

2. The system for comprehensively utilizing the residual heat of low-temperature flue gas in the production of bottled beverages according to claim 1, wherein: the direct contact type smoke heat exchanger is used for absorbing heat in low-temperature smoke exhaust of the bottle blowing device, and the cooled smoke returns to a smoke exhaust pipe of the bottle blowing device through a bypass connecting pipeline and is exhausted to the outdoor environment; the generator is used for driving the absorption heat pump unit to do work, the waste heat circulating medium is introduced into the generator through the connecting pipeline, returns to the direct contact type flue gas heat exchanger after being cooled, and is heated by low-temperature flue gas again to complete the flue gas waste heat recovery process.

3. The system for comprehensively utilizing the residual heat of low-temperature flue gas in the production of bottled beverages according to claim 1, wherein: the first evaporator is used for absorbing heat in the cooling circulation medium, and the cooled cooling circulation medium is introduced into the cooling mixing filling machine through a connecting pipeline to cool the mixed beverage liquid; the second condenser is used for heating carbon dioxide liquid, the heated carbon dioxide liquid is introduced into the cooling and mixing filling machine through a connecting pipeline after being subjected to phase change vaporization, and the mixed beverage liquid is aerated and filled.

4. The system for comprehensively utilizing the residual heat of low-temperature flue gas in the production of bottled beverages according to claim 1, wherein: the first absorber is sequentially connected with the first condenser, heat is released to the passing heating circulating medium, the heated heating circulating medium is introduced into the first heater through the connecting pipeline, the first heater is used for heating bottled beverages, and the heat in the heating circulating medium is released to the bottled beverages through the circulating pipeline.

5. The system for comprehensively utilizing the residual heat of low-temperature flue gas in the production of bottled beverages according to claim 1, wherein: the sugar syrup cooling device is characterized by further comprising a second heater, a third heater, a first cooler, a second evaporator and a second absorber, wherein the second heater is sequentially connected with the first absorber, the second absorber and the first condenser through a heating circulating medium, the third heater is used for sterilizing sugar syrup liquid, saturated steam and the sugar syrup liquid are introduced into the third heater to sterilize the sugar syrup liquid, the first cooler is used for pre-cooling the sterilized sugar syrup liquid, the first cooler is connected with the first evaporator through a cooling circulating medium, the second cooler is used for cooling the sugar syrup liquid to a set temperature, the second cooler is connected with the second evaporator through a cooling circulating medium, and the sugar syrup liquid sequentially passes through the second heater, the third heater, the first cooler and the second cooler to realize preheating, sterilizing and sterilizing of the sugar syrup liquid, Pre-cooling and cooling treatment.

6. The system for comprehensively utilizing the residual heat of low-temperature flue gas in the production of bottled beverages according to claim 5, wherein: the first evaporator is used for absorbing heat in a cooling circulating medium, the cooled cooling circulating medium is introduced into the first cooler through a connecting pipeline, and the first cooler precools syrup to a set temperature; the second evaporator is used for absorbing heat in the cooling circulation medium, the cooled cooling circulation medium is introduced into the second cooler through a connecting pipeline, and the second cooler cools the syrup to a set temperature.

7. The system for comprehensively utilizing the residual heat of low-temperature flue gas in the production of bottled beverages according to claim 5, wherein: the first absorber, the second absorber and the first condenser are sequentially connected to release heat to the passing heating circulating medium, the heated heating circulating medium is introduced into the second heater through the connecting pipeline, the second heater is used for preheating syrup liquid, and the heat in the heating circulating medium is released to the syrup liquid through the circulating pipeline.

8. The system for comprehensively utilizing the residual heat of low-temperature flue gas in the production of bottled beverages according to claim 1, wherein: the bottle-filling machine is characterized by further comprising an empty bottle cooler, a second evaporator and a second absorber, wherein the empty bottle cooler is connected with the first evaporator through a cooling circulation medium, the cooling mixing filling machine is connected with the second evaporator through the cooling circulation medium, and the first heater is sequentially connected with the first absorber, the second absorber and the first condenser through a heating circulation medium to complete the heating treatment of bottled beverages.

9. The system for comprehensively utilizing the residual heat of low-temperature flue gas in the production of bottled beverages according to claim 8, wherein: the first evaporator is used for absorbing heat in a cooling circulating medium, the cooled cooling circulating medium is introduced into the empty bottle cooler through a connecting pipeline, and the empty bottle cooler is used for cooling an empty bottle; the second evaporator is used for absorbing heat in the cooling circulation medium, and the cooled cooling circulation medium is introduced into the cooling mixing filling machine through a connecting pipeline to cool the mixed beverage liquid.

10. The system for comprehensively utilizing the residual heat of low-temperature flue gas in the production of bottled beverages according to claim 8, wherein: the first absorber, the second absorber and the first condenser are sequentially connected, heat is released to a passing heating circulating medium, the heated heating circulating medium is introduced into the first heater through the connecting pipeline, the first heater is used for heating bottled beverages, and the heat in the heating circulating medium is released to the bottled beverages through the circulating pipeline.