CN216654514U

CN216654514U - Modular heat recovery reaction system

Info

Publication number: CN216654514U
Application number: CN202123088161.5U
Authority: CN
Inventors: 严立新; 张耿楠; 李俊; 彭棵
Original assignee: Newway Technology Changsha Co ltd
Current assignee: Newway Technology Changsha Co ltd
Priority date: 2021-12-09
Filing date: 2021-12-09
Publication date: 2022-06-03
Anticipated expiration: 2031-12-09

Abstract

The utility model discloses a modularized heat recovery reaction system, comprising: the system comprises a reaction kettle module, a liquid phase heat recovery module, a circulating power module and an automatic control module; the reaction kettle module has a gas phase heat recovery function so as to heat low-temperature materials by high-temperature gas; the reaction kettle module is connected with the liquid phase heat recovery module, and the circulating power module is used for realizing the conveying of materials between the reaction kettle module and the liquid phase heat recovery module and carrying out circulating heat exchange in the reaction kettle module or the liquid phase heat recovery module; the automatic control module is electrically connected with the reaction kettle module, the liquid phase heat recovery module and the circulating power module, and the automatic control module is used for realizing automatic operation of the heat recovery reaction equipment. The heat recovery reaction equipment has the advantages of compact structure, simple operation, high heat exchange efficiency and the like, and efficiently realizes the multi-stage heat recovery of high-temperature materials and low-temperature materials in the reaction kettle.

Description

Modular heat recovery reaction system

Technical Field

The utility model belongs to the technical field of heat recovery and utilization equipment, and particularly relates to a modular heat recovery reaction system.

Background

The reaction kettle which needs to be used in a high-temperature and pressure-bearing environment is a common comprehensive reactor in production processes of environmental protection, chemical industry and food industry. In order to maintain the heating and heat-preserving state of the reactor, a large amount of energy resources such as thermal hydrolysis sludge, syrup containing slag materials, chemical papermaking materials and the like are consumed, and the temperature is reduced by specially using a cooling and heat-dissipating mode. However, the reaction kettle and the heated materials thereof in the above industries are lack of effective heat recovery measures, and the traditional cooling equipment needs to occupy the space and be additionally matched with a cooling tower for use, so that heat energy is wasted, and the occupied area of the system and the complexity of the process are greatly increased.

SUMMERY OF THE UTILITY MODEL

The utility model aims to overcome the defects of the prior art and provide a modular heat recovery reaction system which has the advantages of compact structure, simple operation, small occupied area and high heat recovery efficiency.

In order to solve the technical problems, the utility model adopts the following technical scheme:

a modular heat recovery reaction system comprising: the system comprises a reaction kettle module, a liquid phase heat recovery module, a circulating power module and an automatic control module; the reaction kettle module has a gas phase heat recovery function so as to heat low-temperature materials by high-temperature gas; the reaction kettle module is connected with the liquid phase heat recovery module, and the circulating power module is used for realizing the conveying of materials between the reaction kettle module and the liquid phase heat recovery module and carrying out circulating heat exchange in the reaction kettle module or the liquid phase heat recovery module; the automatic control module is electrically connected with the reaction kettle module, the liquid phase heat recovery module and the circulating power module, and the automatic control module is used for realizing automatic operation of the heat recovery reaction equipment.

As a further improvement of the utility model, the reaction kettle module comprises a reaction kettle, and the outer side wall of the reaction kettle is provided with a jacket layer; the top of the reaction kettle is provided with a first exhaust port, the side part of the jacket layer is provided with an air inlet, and an air guide pipeline is arranged between the first exhaust port and the air inlet; high-temperature gas discharged from the interior of the reaction kettle enters the interior of the jacket layer through the gas guide pipeline and is used for heating low-temperature materials in the interior of the jacket layer.

As a further improvement of the utility model, a third feed port and a second discharge port are further arranged on the side part of the jacket layer, the circulating power module comprises a second circulating pump, the third feed port and the second discharge port are respectively connected with the feed end and the discharge end of the second circulating pump, the feed end of the second circulating pump is further connected with the feed pipe, and the second circulating pump is used for realizing the circulation of low-temperature materials inside the jacket layer and exchanging heat with high-temperature materials inside the reaction kettle.

As a further improvement of the utility model, the third feed port is connected with the jet pipe and is used for realizing the directional jet of the low-temperature material in the jacket layer.

As a further improvement of the utility model, a second feed inlet is also arranged on the side part of the reaction kettle, and the second feed inlet is connected with the discharge end of the second circulating pump and is used for inputting the material subjected to heat exchange in the jacket layer into the reaction kettle.

As a further improvement of the utility model, the bottom of the reaction kettle is provided with a first feed inlet and a first discharge outlet, and the liquid-phase heat recovery module comprises a spiral plate type heat exchanger; the first feed port is connected with a spiral coil of the spiral plate type heat exchanger and is used for inputting materials subjected to heat exchange in the spiral coil into the reaction kettle; the first discharge hole is connected with the shell of the spiral plate type heat exchanger and used for exchanging heat between high-temperature materials discharged from the inside of the reaction kettle and low-temperature materials in the spiral coil.

As a further improvement of the utility model, a fourth feed port and a third discharge port are arranged at the side part of the spiral plate type heat exchanger; the circulating power module further comprises a first circulating pump, and the fourth feeding hole and the third discharging hole are respectively connected with the feeding end and the discharging end of the first circulating pump, so that high-temperature materials discharged from the inside of the reaction kettle circulate inside the shell of the spiral plate type heat exchanger, and reversely circulate and exchange heat with low-temperature materials in the spiral coil.

As a further improvement of the utility model, a fifth feed inlet and a fourth discharge outlet are further arranged on the side part of the spiral plate type heat exchanger, the fifth feed inlet and the fourth discharge outlet are respectively connected with a feed end and a discharge end of a second circulating pump, and the second circulating pump is used for realizing circulation of low-temperature materials in the spiral coil pipe and performing reverse circulation heat exchange with high-temperature materials in the shell of the spiral plate type heat exchanger.

As a further improvement of the utility model, the discharge end of the first circulating pump is also connected with the discharge pipe and is used for discharging high-temperature materials subjected to heat exchange in the shell of the spiral plate type heat exchanger out of the heat recovery reaction equipment.

As a further improvement of the utility model, the automatic control module comprises an electric automatic control unit, and the electric automatic control unit is used for realizing the automatic operation of the heat recovery reaction equipment.

Compared with the prior art, the utility model has the advantages that:

1. the modularized heat recovery reaction system disclosed by the utility model is formed by combining the reaction kettle module, the liquid phase heat recovery module, the circulating power module and the automatic control module into heat recovery reaction equipment, so that the multistage heat recovery of the reaction kettle and the heated material is efficiently realized, the cooling of high-temperature materials and the heating of low-temperature materials are realized, an additional heat dissipation device is not required to be additionally arranged, the modularized heat recovery reaction system has the advantages of compact structure, greatly reduced floor area, greatly reduced investment cost and the like, and the modularized design is easy and flexible to assemble and is convenient to transport and maintain. And according to the amount of the materials to be treated, the device can be operated by a single set of equipment, and a large-scale process system can be formed by a plurality of sets of equipment, so that the treatment efficiency of the materials is obviously improved.

2. According to the modular heat recovery reaction system, the circulation of low-temperature materials in the jacket layer outside the reaction kettle is realized through the second circulating pump, the circulating heat exchange is carried out on the low-temperature materials and high-temperature materials in the reaction kettle, and the materials subjected to the heat exchange in the jacket layer are input into the reaction kettle; meanwhile, the second circulating pump also realizes the circulation of low-temperature materials in the spiral coil of the spiral plate type heat exchanger and carries out reverse circulation heat exchange with high-temperature materials in the shell of the spiral plate type heat exchanger; high-temperature materials discharged from the inside of the reaction kettle circulate in the shell of the spiral plate type heat exchanger through the first circulating pump, and reversely circulate and exchange heat with low-temperature materials in the spiral coil; the two circulating pumps are used for realizing sufficient contact heat exchange between the high-temperature material and the low-temperature material, so that the cooling discharging of the high-temperature material is completed between the reaction kettle and the spiral plate type heat exchanger, the preheating feeding of the low-temperature material is realized, and the heat energy recovery is realized to the greatest extent.

3. According to the modularized heat recovery reaction system, the temperature of materials in the reaction kettle module and the liquid-phase heat recovery module is monitored in real time through the electric automatic control unit, the switching of the electric control valves is intelligently regulated and controlled, the circulation, feeding and discharging automation of the materials in the reaction equipment is realized, meanwhile, the automatic exhaust of the reaction kettle and the gas guide pipeline is realized, and the utilization rate of high-temperature gas is effectively improved.

Drawings

FIG. 1 is a schematic structural diagram of a modular heat recovery reaction system according to the present invention.

Illustration of the drawings: 1. a reaction kettle; 11. a first feed port; 12. a first discharge port; 13. a second feed port; 14. a first exhaust port; 2. a jacket layer; 21. a second exhaust port; 22. an air inlet; 23. a second discharge port; 24. a third feed inlet; 3. a spiral plate heat exchanger; 31. a fourth feed port; 32. a third discharge port; 33. a fifth feed port; 34. a fourth discharge port; 4. a first circulation pump; 5. a second circulation pump; 6. an electric automatic control unit; 7. a jet pipe; 8. an air guide duct; 9. a feeding pipe; 10. a discharge pipe; a. b, c, d, e, f, g, h and i are all electric control valves.

Detailed Description

The utility model is further described below with reference to the drawings and specific preferred embodiments of the description, without thereby limiting the scope of protection of the utility model.

Example 1

As shown in fig. 1, the modular heat recovery reaction system of the present invention comprises: the device comprises a reaction kettle module, a liquid phase heat recovery module, a circulating power module and an automatic control module. The reaction kettle module has a gas-phase heat recovery function so as to heat low-temperature materials by high-temperature gas and improve the utilization rate of the high-temperature gas. The reaction kettle module is connected with the liquid phase heat recovery module, and the circulating power module is used for conveying materials between the reaction kettle module and the liquid phase heat recovery module and performing circulating heat exchange inside the reaction kettle module or inside the liquid phase heat recovery module. The automatic control module is electrically connected with the reaction kettle module, the liquid phase heat recovery module and the circulating power module, and the automatic control module is used for realizing the automatic operation of the heat recovery reaction equipment. It can be understood that the optimal appearance of the floor area is the design of a cylindrical tank body, if the elevation of an actual engineering project is limited, the horizontal layout of container type tank bodies can be adopted, and the modularized design is convenient for field assembly.

In this embodiment, through reation kettle module, liquid phase heat recovery module, circulation power module and automatic control module combination into heat recovery response device, the multistage heat recovery of reation kettle and heated material has been realized to the high efficiency, the cooling of high temperature material and the intensification heating of low temperature material have been realized, need not to add extra heat abstractor again, compact structure has, area reduces greatly, investment cost greatly reduced's advantage, and modular design is easily nimble to be assembled, be convenient for transportation and maintenance. And according to the amount of the materials to be treated, the device can be operated by a single set of equipment, and a large-scale process system can be formed by a plurality of sets of equipment, so that the treatment efficiency of the materials is obviously improved.

In this embodiment, the reation kettle module includes

reation kettle

1, and 1 lateral wall of reation kettle is equipped with jacket layer 2. The top of the reaction kettle 1 is provided with a first exhaust port 14, the side part of the jacket layer 2 is provided with an air inlet 22, and an air guide pipeline 8 is arranged between the first exhaust port 14 and the air inlet 22. High-temperature gas discharged from the interior of the reaction kettle 1 enters the jacket layer 2 through the gas guide pipeline 8, and is used for heating low-temperature materials in the jacket layer 2. A second exhaust port 21 is arranged at the top of the jacket layer 2, and the gas after heat exchange is sent to a deodorization system or exhausted to the air through the second exhaust port 21.

In this embodiment, 2 lateral parts on the jacket layer still are equipped with third feed inlet 24 and second discharge gate 23, and circulation power module includes second circulating pump 5, and third feed inlet 24 and second discharge gate 23 are connected with the feed end and the discharge end of second circulating pump 5 respectively, and the feed end of second circulating pump 5 still is connected with inlet pipe 9, and second circulating pump 5 is used for realizing that the low temperature material is at 2 internal circulations on the jacket layer to carry out the heat transfer with the inside high temperature material of reation kettle 1.

In this embodiment, the third feed port 24 is connected to the jet pipe 7, and is configured to realize directional jet of the low-temperature material inside the jacket layer 2. In the jacket layer 2, low-temperature materials or other heat recovery media to be treated in the reaction kettle 1 can be introduced according to process requirements, the materials or other heat recovery media form a good circulating flow state in the jacket layer 2 in a directional jet flow mode, the heat energy of the high-temperature materials in the reaction kettle 1 is absorbed through partition wall heat exchange and then preheated, the heated materials can enter the reaction kettle 1 again and are continuously heated to the process temperature, or the heated other heat recovery media return to energy utilization sides of a boiler and the like, so that the heat energy recovery of a certain degree is realized.

In the practical application process, the material to be treated which needs to enter the reaction kettle 1 can be divided into 2 parts according to a proper volume proportion. It can be understood that the amount of the material flowing in can be matched in proportion according to the total treatment capacity in the reaction kettle 1 according to the actual heat recovery amount of the two module units of the reaction kettle module with the gas-phase heat recovery function and the liquid-phase heat recovery module. The first material is conveyed to the jacket layer 2 through the second circulating pump 5, a good flow state is formed in the jacket layer 2 through the jet pipe 7 by the power of the pump, and the heat energy of the high-temperature material in the reaction kettle 1 is continuously absorbed through dividing wall heat exchange. Meanwhile, a specially designed air guide pipeline 8 is arranged at the top of the reaction kettle 1, high-temperature hot gas or steam continuously accumulated in the reaction kettle 1 is sent to a deodorization system or is directly injected into the jacket layer 2 through the air guide pipeline 8 before being discharged to the air, low-temperature materials or other heat recovery media in the jacket layer 2 are heated, and gas-phase heat recovery is efficiently completed.

In this embodiment, 1 lateral part of reation kettle still is equipped with second feed inlet 13, and second feed inlet 13 is connected with the discharge end of second circulating pump 5 for the material input reation kettle 1 inside after realizing the inside heat transfer of jacket layer 2. After the automatic control module monitors that the heat exchange between the low-temperature material in the jacket layer 2 and the high-temperature material in the reaction kettle 1 reaches the standard, the reaction kettle 1 is controlled to enter a discharging program, a valve is automatically switched, the high-temperature material is discharged into the spiral plate type heat exchanger 3, and the reaction kettle 1 is emptied. And finally, automatically switching the valve, and feeding the first part of material preheated in the jacket layer 2 into the reaction kettle 1 through the second feed inlet 13 by using the second circulating pump 5.

In this embodiment, the bottom of the reaction kettle 1 is provided with a first feeding hole 11 and a first discharging hole 12. The liquid phase heat recovery module comprises a spiral plate type heat exchanger 3, and the spiral plate type heat exchanger 3 comprises a shell and a built-in spiral coil. The spiral plate type heat exchanger 3 is suitable for heat exchange of materials with high solid content and high viscosity, and the drift diameter size of a fluid channel in the spiral plate type heat exchanger 3 can be designed as required according to different material types and the difference of the solid content. First feed inlet 11 is connected with spiral plate heat exchanger 3's spiral coil for material input reation kettle 1 inside after realizing the heat transfer among the spiral coil. First discharge gate 12 is connected with spiral plate heat exchanger 3's shell for realize that the inside exhaust high temperature material of reation kettle 1 carries out the heat transfer with the low temperature material in the spiral coil. Specifically, the high-temperature material discharged from the reaction kettle 1 and the second low-temperature material to be treated in the reaction kettle 1 are subjected to reverse circulation heat exchange in the spiral plate heat exchanger 3 respectively. After heat exchange, the high-temperature material directly reaches the cooling effect and can be directly conveyed to a rear-end treatment process. The second low-temperature material to be treated in the reaction kettle is preheated after absorbing the heat energy of the high-temperature material, and then is pumped into the reaction kettle 1.

In this embodiment, the side of the spiral plate heat exchanger 3 is provided with a fourth feeding hole 31 and a third discharging hole 32. The circulating power module further comprises a first circulating pump 4, and a fourth feeding hole 31 and a third discharging hole 32 are respectively connected with the feeding end and the discharging end of the first circulating pump 4, so that high-temperature materials discharged from the inside of the reaction kettle 1 can circulate inside the shell of the spiral plate type heat exchanger 3, and can reversely circulate and exchange heat with low-temperature materials in the spiral coil. Further, the discharge end of the first circulating pump 4 is connected with the discharge pipe 10 and used for discharging high-temperature materials after heat exchange inside the shell of the spiral plate type heat exchanger 3 out of the heat recovery reaction equipment.

In this embodiment, 3 lateral parts of spiral plate heat exchanger still are equipped with fifth feed inlet 33 and fourth discharge gate 34, and fifth feed inlet 33 and fourth discharge gate 34 are connected with the feed end and the discharge end of second circulating pump 5 respectively, and second circulating pump 5 is used for realizing that the low temperature material circulates in spiral coil to carry out reverse circulation heat transfer with the inside high temperature material of 3 shells of spiral plate heat exchanger. Further, after the automatic control module monitors that the second part of material is preheated, the valve is automatically switched, so that the second part of material is pumped into the reaction kettle 1 through the second feeding hole 13 by the second circulating pump 5, is mixed with the first part of preheated material, and starts to be heated in the process. Meanwhile, the material to be discharged out of the heat recovery reaction equipment is cooled after heat exchange, and the cooled material is discharged out of the heat recovery reaction equipment from the discharge pipe 10 through the first circulating pump 4 through automatic switching of the valve, so that the whole processes of feeding, discharging and comprehensive heat recovery are completed.

It can be understood that, in this embodiment, among two circulating pumps, second circulating pump 5 is as the feeding and the circulation usefulness of cold material, and first circulating pump 4 is then as the discharge and the circulation usefulness of hot material, and two circulating pumps form the cooperation with the automatic control module, have played the effect of control cold, the transport and the circulation of hot material. Depending on the process material, the first circulation pump 4 and the second circulation pump 5 may take the form of various pump bodies, such as a centrifugal mortar pump, a screw centrifugal pump, a screw pump, etc., as long as stable conveyance of the material is achieved.

In the embodiment, the circulation of low-temperature materials in the jacket layer 2 outside the reaction kettle 1 is realized through the second circulating pump 5, the low-temperature materials and high-temperature materials in the reaction kettle 1 are subjected to circulating heat exchange, and the materials subjected to heat exchange in the jacket layer 2 are input into the reaction kettle 1; meanwhile, the second circulating pump 5 also realizes the circulation of low-temperature materials in the spiral coil of the spiral plate type heat exchanger 3 and carries out reverse circulation heat exchange with high-temperature materials in the shell of the spiral plate type heat exchanger 3; high-temperature materials discharged from the inside of the reaction kettle 1 circulate in the shell of the spiral plate type heat exchanger 3 through the first circulating pump 4, and perform reverse circulation heat exchange with low-temperature materials in the spiral coil; the two circulating pumps are used for realizing sufficient contact heat exchange between the high-temperature material and the low-temperature material, so that the cooling discharge of the high-temperature material is finished between the reaction kettle and the spiral plate type heat exchanger, the preheating feeding of the low-temperature material is realized, and the heat energy recovery is realized to the greatest extent.

In this embodiment, the automatic control module includes an electric automatic control unit 6, the electric automatic control unit 6 is electrically connected to the electric control valves a to i, and is electrically connected to the temperature detection elements in the reaction kettle 1, the jacket layer 2, and the spiral plate heat exchanger 3, and controls the start and stop of the first circulation pump 4 and the second circulation pump 5, and the electric automatic control unit 6 is used for realizing the automatic operation of the heat recovery reaction equipment. Through the temperature of material among electric automatic control unit real-time supervision reation kettle module and the liquid phase heat recovery module, the switching of intelligent control electrical control valve has realized that circulation, feeding and row of material in response device are automatic, has also realized reation kettle and air guide pipeline self-bleeding simultaneously, has effectively improved high-temperature gas's utilization ratio.

In this embodiment, carry out modularization collocation, overlap the installation, furthest has reduced area, and the modularized design can be accomplished nimble changeable according to the in-service use demand moreover, according to heat recovery's actual need, lets in the material of treating reation kettle 1 heating in each module, also can let in other heat recovery media, for example soft water for the boiler etc. to realize maximum heat recovery.

Example 2

The modularized heat recovery reaction system provided by the utility model is used for realizing a treatment process of completing 160 ℃ pyrohydrolysis of sludge generated in a sludge treatment section of a municipal sewage treatment plant in a certain city. In the continuous operation working condition, normal temperature sludge to be treated in the modularized heat recovery reaction system is divided into two parts according to the preset volume proportion according to the actual heat exchange requirement.

As shown in fig. 1, high-temperature sludge to be cooled and discharged is stored in a reaction kettle 1, and only an electric control valve c in the whole pipeline system is in an open state. The first part of sludge is conveyed into the jacket layer 2 through the second feed inlet 13 by the second circulating pump 5, a good flow state is formed in the jacket layer 2 through the jet pipe 7 by utilizing the power provided by the second circulating pump 5, and the heat energy of the sludge which is treated in the reaction kettle 1 and has the temperature of 140-160 ℃ is continuously absorbed through partition wall heat exchange. Meanwhile, the electric control valve d is opened, high-temperature gas continuously accumulated in the reaction kettle 1 is directly injected into sludge in the jacket layer 2 through the gas guide pipeline 8 before being sent to the deodorization system, the high-temperature gas is directly mixed and heated, the gas after heat absorption is led to a gas treatment process through the second gas outlet 21 at the top of the jacket layer 2, and gas phase heat recovery is efficiently completed. And after the gas-phase heat energy recovery is finished, closing the electric control valve d.

After the electric automatic control unit 6 monitors that the heat exchange between the low-temperature sludge in the jacket layer 2 and the high-temperature sludge in the reaction kettle 1 reaches the standard, the reaction kettle 1 is controlled to enter a discharging program, the electric control valve c is automatically closed, and the second circulating pump 5 stops running. The electric automatic control unit 6 controls the first discharge hole 12 to be communicated, and the high-temperature sludge in the reaction kettle 1 is discharged into the shell of the spiral plate type heat exchanger 3 to empty the reaction kettle 1. And finally, the electric automatic control unit 6 opens the electric control valve h, the electric control valve a and the electric control valve b again, starts the second circulating pump 5, and sends the first part of sludge preheated in the jacket layer 2 into the reaction kettle 1 through the second feeding hole 13 for temporary storage through the second circulating pump 5. And after the first sludge is conveyed, closing the electric control valve h, the electric control valve a and the electric control valve b, and closing the second circulating pump 5.

After the heat recovery process of the first sludge is completed, the electric automatic control unit 6 controls the electric control valve g and the electric control valve i to be opened, the second circulating pump 5 is started, so that the second sludge is sent into the spiral coil of the spiral plate type heat exchanger 3 through the second circulating pump 5, and the second sludge continuously and circularly flows in the spiral coil of the spiral plate type heat exchanger 3 by utilizing the power provided by the second circulating pump 5. Meanwhile, the electric automatic control unit 6 controls the electric control valve e to be opened, the first circulating pump 4 is started, and the high-temperature sludge discharged into the shell of the spiral plate type heat exchanger 3 through the first discharge hole 12 keeps flowing circularly in the reverse direction and continuously exchanges heat with the second part of sludge.

When the electric automatic control unit 6 monitors that the heat exchange of the second sludge in the spiral plate type heat exchanger 3 reaches the standard, the electric automatic control unit 6 controls the electric control valve g and the electric control valve e to be closed, the electric control valve f is opened, the second sludge is pumped into the reaction kettle 1 through the first feeding hole 11 by the second circulating pump 5, is mixed with the first preheated sludge, and starts to be technically heated. Meanwhile, the sludge to be discharged out of the system is cooled after heat exchange, and the cooled sludge is discharged out of the heat recovery reaction equipment from the discharge pipe 10 through the first circulating pump 4, so that the whole processes of sludge feeding, sludge discharging and comprehensive heat recovery are completed.

Further, in order to realize greater heat recovery, the first and second portions of sludge participating in heat exchange can be the whole sludge storage pool or the whole sludge storage tank, the larger volume of all sludge to be thermally hydrolyzed is powered by the circulating pump, and the heat energy of the dividing wall heat and the high-temperature gas in the reaction kettle 1 is continuously absorbed in the jacket layer 2, and the heat energy of the high-temperature sludge is absorbed in the spiral plate type heat exchanger 3 in a continuous circulating heat exchange mode.

Further, in order to realize greater heat recovery, a soft water tank of the heat source boiler can be connected into the jacket layer 2 to absorb the heat of the dividing wall and the heat of the high-temperature gas in the reaction kettle 1, and connected into the spiral plate type heat exchanger 3 to recover the heat to the inlet water of the boiler, so that the energy consumption of steam generated by the boiler is directly reduced.

The above engineering examples illustrate the beneficial combination of multiple functions and efficient heat recovery of the present invention. The heat recovery equipment is compact and reliable due to the design of mold speed, occupies a small area, and can be configured in multiple sets in batch according to the material processing amount so as to realize heat energy recovery to a greater extent.

Although the present invention has been described with reference to the preferred embodiments, it is not intended to be limited thereto. Those skilled in the art can make many possible variations and modifications to the disclosed embodiments, or equivalent modifications, without departing from the spirit and scope of the utility model, using the methods and techniques disclosed above. Therefore, any simple modification, equivalent replacement, equivalent change and modification made to the above embodiments according to the technical essence of the present invention are still within the scope of the protection of the technical solution of the present invention.

Claims

1. A modular heat recovery reaction system, comprising: the system comprises a reaction kettle module, a liquid phase heat recovery module, a circulating power module and an automatic control module; the reaction kettle module has a gas phase heat recovery function so as to heat low-temperature materials by high-temperature gas; the reaction kettle module is connected with the liquid phase heat recovery module, and the circulating power module is used for realizing the conveying of materials between the reaction kettle module and the liquid phase heat recovery module and carrying out circulating heat exchange in the reaction kettle module or the liquid phase heat recovery module; the automatic control module is electrically connected with the reaction kettle module, the liquid phase heat recovery module and the circulating power module, and is used for realizing automatic operation of the heat recovery reaction equipment;

the reaction kettle module comprises a reaction kettle (1), and the outer side wall of the reaction kettle (1) is provided with a jacket layer (2); a first exhaust port (14) is formed in the top of the reaction kettle (1), an air inlet (22) is formed in the side portion of the jacket layer (2), and an air guide pipeline (8) is arranged between the first exhaust port (14) and the air inlet (22); high-temperature gas discharged from the interior of the reaction kettle (1) enters the interior of the jacket layer (2) through the gas guide pipeline (8) and is used for heating low-temperature materials in the jacket layer (2);

the lateral part of the jacket layer (2) is also provided with a third feeding port (24) and a second discharging port (23), the circulating power module comprises a second circulating pump (5), the third feeding port (24) and the second discharging port (23) are respectively connected with the feeding end and the discharging end of the second circulating pump (5), the feeding end of the second circulating pump (5) is also connected with the feeding pipe (9), and the second circulating pump (5) is used for realizing the circulation of low-temperature materials in the jacket layer (2) and exchanging heat with high-temperature materials in the reaction kettle (1);

the bottom of the reaction kettle (1) is provided with a first feeding hole (11) and a first discharging hole (12), and the liquid phase heat recovery module comprises a spiral plate type heat exchanger (3); the first feeding hole (11) is connected with a spiral coil of the spiral plate type heat exchanger (3) and is used for inputting materials subjected to heat exchange in the spiral coil into the reaction kettle (1); the first discharge hole (12) is connected with the shell of the spiral plate type heat exchanger (3) and used for exchanging heat between high-temperature materials discharged from the inside of the reaction kettle (1) and low-temperature materials in the spiral coil.

2. The modular heat recovery reaction system according to claim 1, characterized in that the third feed opening (24) is connected to a jet pipe (7) for achieving a directed jet of the cryogenic material inside the jacket layer (2).

3. The modular heat recovery reaction system according to claim 1, wherein a second feed inlet (13) is further formed in the side of the reaction kettle (1), and the second feed inlet (13) is connected with a discharge end of the second circulating pump (5) and is used for feeding the material subjected to heat exchange in the jacket layer (2) into the reaction kettle (1).

4. The modular heat recovery reaction system according to any one of claims 1 to 3, wherein the spiral plate heat exchanger (3) is provided with a fourth inlet (31) and a third outlet (32) at the side; the circulating power module further comprises a first circulating pump (4), a fourth feeding hole (31) and a third discharging hole (32) are respectively connected with the feeding end and the discharging end of the first circulating pump (4) and used for realizing the internal circulation of high-temperature materials discharged from the inside of the reaction kettle (1) in the shell of the spiral plate type heat exchanger (3) and carrying out reverse circulating heat exchange with low-temperature materials in the spiral coil.

5. The modular heat recovery reaction system according to claim 4, wherein a fifth feeding hole (33) and a fourth discharging hole (34) are further formed in the side portion of the spiral plate type heat exchanger (3), the fifth feeding hole (33) and the fourth discharging hole (34) are respectively connected with a feeding end and a discharging end of a second circulating pump (5), and the second circulating pump (5) is used for realizing circulation of low-temperature materials in the spiral coil and performing reverse circulation heat exchange with high-temperature materials inside the shell of the spiral plate type heat exchanger (3).

6. The modular heat recovery reaction system according to claim 4, wherein the discharge end of the first circulation pump (4) is further connected with a discharge pipe (10) for discharging the high-temperature material subjected to heat exchange in the shell of the spiral plate heat exchanger (3) out of the heat recovery reaction equipment.

7. The modular heat recovery reaction system according to claim 5 or 6, wherein the automatic control module comprises an electrically autonomous unit (6), the electrically autonomous unit (6) being adapted to enable an automated operation of the heat recovery reaction plant.