Split lithium bromide absorption type refrigeration generating device

Abstract

The utility model relates to the technical field of flue gas waste heat recovery, and provides a split type lithium bromide absorption type refrigeration generating device which comprises a flue gas waste heat absorption box, a V-shaped flue is arranged in the flue gas waste heat absorption box, one end of the V-shaped flue is communicated with a flue gas input pipeline, the other end of the V-shaped flue is communicated with a flue gas output pipeline, and the bottom of the V-shaped flue is communicated with a smoke dust waste discharging mechanism. A plurality of heat pipe assemblies are arranged in the flue gas waste heat absorption box, one end of each heat pipe assembly extends into the V-shaped flue and forms an evaporation portion, the other end of each heat pipe assembly extends into the lithium bromide generator and forms a condensation portion, the lithium bromide generator and the flue gas waste heat absorption box are arranged in a split mode, and the lithium bromide generator is communicated with the absorber and the condenser. The condenser is communicated with the evaporator which is communicated with the absorber. Through the structural design of the V-shaped flue and the heat pipe assembly, the flue gas waste heat recovery efficiency is improved, meanwhile, the flue gas waste heat absorption box and the lithium bromide generator are designed in a split mode, and equipment repair and maintenance are convenient.

Description

Technical Field

[0001] The utility model relates to the technical field of flue gas waste heat recovery, in particular to a split lithium bromide absorption refrigeration generating device. Background Art

[0002] Waste heat refers to the heat energy that is directly discharged after being used by various heat-using equipment without being fully and reasonably utilized, that is, the excess and waste heat. It includes both gas waste heat such as flue gas waste heat and process waste gas waste heat, and liquid waste heat such as waste water waste heat and process waste liquid waste heat. According to relevant statistics, the total waste heat resources of various industries account for about 17%-67% of their total energy and fuel consumption, and the recyclable waste heat resources account for about 60% of the total waste heat resources. Therefore, in order to achieve the effective utilization of resources, the recycling of waste heat resources has become increasingly important.

[0003] There are many flue gas waste heat recovery devices at present, such as the Chinese utility model patent with patent number CN01262685.6, and the patent name is a flue gas heat recovery device for a direct-fired lithium bromide absorption hot and cold water unit. A flue gas heat exchanger is set on the exhaust flue of the high-voltage generator of the unit, and a lithium bromide dilute solution pipeline is connected to the flue gas heat exchanger to exchange heat with the flue gas discharged from the unit. The flue gas flows through the flue gas heat exchanger before being discharged from the unit, which can recover the heat of the flue gas and reduce the energy consumption of the unit. The above-mentioned equipment has a simple structure and can only recover the heat of the flue gas once. The heat recovery efficiency is low, and the lithium bromide dilute solution pipeline is directly connected to the flue gas heat exchanger, which is inconvenient to repair and maintain the equipment. Utility Model Content

[0004] In order to overcome the above-mentioned defects of the prior art, the utility model provides a split lithium bromide absorption refrigeration generating device, which improves the recovery efficiency of flue gas waste heat through the structural design of the V-shaped flue and the heat pipe assembly. At the same time, the flue gas waste heat absorption box and the lithium bromide generator are split, which makes the equipment easy to repair and maintain.

[0005] In order to solve the above technical problems, the technical solution of the utility model is:

[0006] A split lithium bromide absorption refrigeration generating device comprises a flue gas waste heat absorption box, wherein a V-shaped flue is arranged in the flue gas waste heat absorption box, one end of the V-shaped flue is connected to a flue gas input pipe, and the other end is connected to a flue gas output pipe, and the bottom of the V-shaped flue is connected to a smoke exhaust mechanism;

[0007] A plurality of heat pipe assemblies are arranged in the flue gas waste heat absorption box, one end of the plurality of heat pipe assemblies extends into the V-shaped flue to form an evaporation part, and the other end extends into the lithium bromide generator to form a condensation part. The lithium bromide generator and the flue gas waste heat absorption box are separately arranged, and the lithium bromide generator is respectively connected to the absorber and the condenser, the condenser is connected to the evaporator, and the evaporator is connected to the absorber.

[0008] As an improved technical solution, the heat pipe assembly includes a heat pipe body, an end of the heat pipe body close to the evaporation part is provided with an inclined elliptical heat exchange plate, the inclination direction of the elliptical heat exchange plate is consistent with the flue gas direction of the V-shaped flue, and an end of the heat pipe body close to the condensation part is provided with a circular heat exchange plate, and the circular heat exchange plate is horizontally arranged.

[0009] As an improved technical solution, a thermal insulation layer is provided on the heat pipe body, and the thermal insulation layer is provided between the lithium bromide generator and the V-shaped flue.

[0010] As an improved technical solution, one end of the heat pipe body located in the V-shaped flue is arranged along the flue gas direction of the V-shaped flue;

[0011] The elliptical heat exchange plates of two adjacent heat pipe bodies are arranged alternately;

[0012] The circular heat exchange plates of two adjacent heat pipe bodies are also arranged alternately.

[0013] As an improved technical solution, the smoke exhaust mechanism includes a waste exhaust box, which is connected to the V-shaped flue, and a smoke collection box is installed in the waste exhaust box. The smoke collection box is connected to a pushing device, and the pushing device is installed on the waste exhaust box through a bracket. The waste exhaust box is provided with an outlet for moving the smoke collection box, and the outlet is arranged corresponding to the pushing device. A smoke discharge port is provided at the bottom of the smoke collection box.

[0014] As an improved technical solution, the bottom of the smoke collecting box is arranged obliquely, and the smoke exhaust port is arranged at the lowest end of the inclined arrangement of the smoke collecting box.

[0015] As an improved technical solution, a dilute solution input pipeline and a concentrated solution output pipeline are connected between the lithium bromide generator and the absorber, a delivery pump is installed on the dilute solution input pipeline, and a first throttle valve is installed on the concentrated solution output pipeline;

[0016] A steam pipeline is connected between the lithium bromide generator and the condenser, a delivery pipeline is provided between the condenser and the evaporator, and a second throttle valve is installed on the delivery pipeline.

[0017] As an improved technical solution, the top of the lithium bromide generator and the connection point of the steam pipe are arranged in a funnel-shaped structure;

[0018] A liquid level detection device is also provided in the lithium bromide generator.

[0019] After adopting the above technical solution, the beneficial effects of the utility model are:

[0020] By setting a flue gas waste heat absorption box, a V-shaped flue is arranged in the flue gas waste heat absorption box, one end of the V-shaped flue is connected to the flue gas input pipe, the other end is connected to the flue gas output pipe, and the bottom of the V-shaped flue is connected to the smoke dust exhaust mechanism; a plurality of heat pipe assemblies are arranged in the flue gas waste heat absorption box, one end of the plurality of heat pipe assemblies extends into the V-shaped flue to form an evaporation part, and the other end extends into the lithium bromide generator to form a condensation part, the lithium bromide generator and the flue gas waste heat absorption box are separately arranged, the lithium bromide generator is respectively connected to the absorber and the condenser, the condenser is connected to the evaporator, and the evaporator is connected to the absorber, by setting the V-shaped flue, the circulation length of the flue gas is increased, and the flow speed of the flue gas is slowed down, thereby increasing the heat exchange efficiency between the flue gas and the heat pipe assembly, and improving the recovery efficiency of the waste heat in the flue gas, by setting the smoke dust exhaust mechanism, the smoke deposited at the bottom corner of the V-shaped flue can be discharged in time, and by setting the heat pipe assembly, The waste heat of flue gas in the flue is absorbed and transferred to the lithium bromide generator, and the lithium bromide solution in the lithium bromide generator is heated, so that the water in the lithium bromide solution evaporates into refrigerant steam and enters the condenser. After the water in the lithium bromide solution evaporates, the lithium bromide solution gradually concentrates from a dilute solution to a high-concentration lithium bromide solution, and the high-concentration lithium bromide solution is transported to the absorber. The evaporated refrigerant steam enters the condenser, undergoes a phase change and liquefies, and releases heat. After that, it enters the evaporator through the second throttle valve to expand and evaporate, and changes phase to gas again, absorbing the heat of the cooled space, thereby achieving refrigeration. The gaseous refrigerant steam enters the absorber and is absorbed by the concentrated high-concentration lithium bromide solution, becoming a dilute solution, and is transported back to the lithium bromide generator, thereby forming a cycle. By separating the flue gas waste heat absorption box and the lithium bromide generator, the equipment is easy to repair and maintain.

[0021] The heat pipe assembly includes a heat pipe body. An end of the heat pipe body close to the evaporation portion is provided with an inclined elliptical heat exchange plate. The inclination direction of the elliptical heat exchange plate is consistent with the flue gas direction of the V-shaped flue. By tilting the elliptical heat exchange plate and the inclination direction is consistent with the flue gas direction of the V-shaped flue, the smoke accumulated on the elliptical heat exchange plate is reduced. At the same time, the contact area with the flue gas is increased, and the absorption efficiency of the flue gas waste heat is increased. A circular heat exchange plate is provided at one end of the heat pipe body close to the condensation portion. The circular heat exchange plate is horizontally arranged. The circular heat exchange plate is arranged to increase the heat exchange efficiency between the heat pipe body and the lithium bromide solution in the lithium bromide generator.

[0022] In summary, the utility model provides a split lithium bromide absorption refrigeration generating device, which improves the recovery efficiency of flue gas waste heat through the structural design of the V-shaped flue and the heat pipe assembly. At the same time, the flue gas waste heat absorption box and the lithium bromide generator are split, which makes the equipment easy to repair and maintain. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the prior art descriptions are briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on the structures shown in these drawings without creative work. In addition, in the drawings, the components or parts are not necessarily drawn according to the actual scale.

[0024] Figure 1 This is a schematic diagram of the structure of the flue gas waste heat absorption box and the lithium bromide generator in the utility model;

[0025] Figure 2 This is a schematic diagram of the structure of the heat pipe assembly in the utility model;

[0026] Figure 3 It is a structural schematic diagram of the smoke exhaust mechanism in the utility model;

[0027] Figure 4 It is a schematic diagram of the principle of the utility model;

[0028] Reference numerals:

[0029] 1. Flue gas waste heat absorption box, 2. V-shaped flue, 3. Flue gas input pipe, 4. Flue gas output pipe, 5. Smoke dust exhaust mechanism, 501. Waste discharge box, 502. Smoke dust collection box, 503. Pushing device, 504. Bracket, 505. Smoke dust discharge port, 6. Heat pipe assembly, 601. Heat pipe body, 602. Elliptical heat exchange plate, 603. Circular heat exchange plate, 7. Lithium bromide generator, 8. Absorber, 9. Condenser, 10. Evaporator, 11. Thermal insulation layer, 12. Dilute solution input pipe, 13. Concentrated solution output pipe, 14. Delivery pump, 15. First throttle valve, 16. Steam pipe, 17. Delivery pipe, 18. Second throttle valve, 19. Liquid level detection device. DETAILED DESCRIPTION

[0030] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0031] It should be noted that all directional indications (such as up, down, left, right, front, back...) in the embodiments of the present invention are only used to explain the relative position relationship, movement status, etc. between the various components under a certain specific posture (as shown in the accompanying drawings). If the specific posture changes, the directional indication will also change accordingly.

[0032] At the same time, the meaning of "and / or" or "and / or" appearing in the full text includes three options. Taking "A and / or B" as an example, it includes option A, or option B, or a option in which both A and B are satisfied.

[0033] In addition, in the present utility model, descriptions such as "first", "second", etc. are only used for descriptive purposes and cannot be understood as indicating or implying their relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include at least one of the features. In addition, the technical solutions between the various embodiments can be combined with each other, but they must be based on the ability of ordinary technicians in the field to implement them. When the combination of technical solutions is contradictory or cannot be implemented, it should be deemed that such a combination of technical solutions does not exist and is not within the scope of protection required by the present utility model.

[0034] like Figure 1-Figure 4 As shown, a split lithium bromide absorption refrigeration generating device comprises a flue gas waste heat absorption box 1, a V-shaped flue 2 is arranged in the flue gas waste heat absorption box 1, the V-shaped flue 2 is composed of two flue sections connected at an angle, the angle is set according to the flow rate of the flue gas, and the angle is different for different flue gas flow rates, which is not limited here, one end of the V-shaped flue 2 is connected to a flue gas input pipe 3, and the other end is connected to a flue gas output pipe 4, and the bottom of the V-shaped flue 2 is connected to a smoke exhaust mechanism 5;

[0035] A plurality of heat pipe assemblies 6 are arranged in the flue gas waste heat absorption box 1. One end of the plurality of heat pipe assemblies 6 extends into the V-shaped flue 2 to form an evaporation part, and the other end extends into the lithium bromide generator 7 to form a condensation part. The lithium bromide generator 7 is separately arranged between the flue gas waste heat absorption box 1. The lithium bromide generator 7 is respectively connected to the absorber 8 and the condenser 9. The condenser 9 is connected to the evaporator 10. The evaporator 10 is connected to the absorber 8. By setting the V-shaped flue 2, the flow length of the flue gas is increased, and the flow speed of the flue gas is slowed down, thereby increasing the heat exchange efficiency between the flue gas and the heat pipe assembly 6, and improving the recovery efficiency of the waste heat in the flue gas. By setting the smoke dust exhaust mechanism 5, the smoke dust deposited at the bottom corner of the V-shaped flue 2 can be discharged in time. By setting the heat pipe assembly 6, the waste heat of the flue gas in the flue can be absorbed. , and transfers heat to the lithium bromide generator 7, and heats the lithium bromide solution in the lithium bromide generator 7, so that the water in the lithium bromide solution evaporates into refrigerant vapor and enters the condenser 9. After the water in the lithium bromide solution evaporates, the lithium bromide solution gradually concentrates from a dilute solution to a high-concentration lithium bromide solution, and the high-concentration lithium bromide solution is transported to the absorber 8. The evaporated refrigerant vapor enters the condenser 9, undergoes a phase change and liquefies, and releases heat. After that, it passes through the second throttle valve 18 and enters the evaporator 10 to expand and evaporate, and changes phase to a gaseous state again, absorbing the heat of the cooled space, thereby realizing refrigeration, and the gaseous refrigerant vapor enters the absorber 8 and is absorbed by the concentrated high-concentration lithium bromide solution, becomes a dilute solution, and is transported back to the lithium bromide generator 7, thereby forming a cycle.

[0036] also, Figure 1 and Figure 4 The arrow in the middle shows the direction of movement of the medium.

[0037] like Figure 1-Figure 2 As shown, the heat pipe assembly 6 includes a heat pipe body 601, and an end of the heat pipe body 601 close to the evaporation portion is provided with an inclined elliptical heat exchange plate 602, and the inclination direction of the elliptical heat exchange plate 602 is consistent with the flue gas direction of the V-shaped flue 2. A circular heat exchange plate 603 is provided at one end of the heat pipe body 601 close to the condensation portion, and the circular heat exchange plate 603 is horizontally arranged. By tilting the elliptical heat exchange plate 602, and the inclination direction is consistent with the flue gas direction of the V-shaped flue 2, the smoke accumulated on the elliptical heat exchange plate 602 is reduced. At the same time, the contact area with the flue gas can be increased, and the absorption efficiency of the waste heat of the flue gas is increased. A circular heat exchange plate 603 is provided at one end of the heat pipe body 601 close to the condensation portion, and the circular heat exchange plate 603 is horizontally arranged. By arranging the circular heat exchange plate 603, the heat exchange efficiency between the heat pipe body 601 and the lithium bromide solution in the lithium bromide generator 7 is increased.

[0038] like Figure 1-Figure 2As shown, a thermal insulation layer 11 is provided on the heat pipe body 601, and the thermal insulation layer 11 is arranged between the lithium bromide generator 7 and the V-shaped flue 2. Since the lithium bromide generator 7 and the flue gas waste heat absorption box 1 are separately arranged, the thermal insulation layer 11 is provided to insulate the heat pipe body 601 to prevent the heat of the medium in the heat pipe body 601 from being lost during the transfer process.

[0039] like Figure 1-Figure 2 As shown, one end of the heat pipe body 601 located in the V-shaped flue 2 is arranged along the flue gas direction of the V-shaped flue 2. Due to the direction of the flue gas in the V-shaped flue 2, the end of the heat pipe body 601 extending into the flue is always located below the flue along the direction of the flue, ensuring that the heat pipe body 601 can fully exchange heat with the flue gas in the V-shaped flue 2.

[0040] The elliptical heat exchange plates 602 of two adjacent heat pipe bodies 601 are arranged alternately;

[0041] The circular heat exchange plates 603 of two adjacent heat pipe bodies 601 are also staggered. By staggering the elliptical heat exchange plates 602 and the circular heat exchange plates 603 of two adjacent heat pipe bodies 601, the heat exchange efficiency is enhanced.

[0042] like Figure 1 and Figure 4 As shown, the smoke exhaust mechanism 5 includes a waste exhaust box 501, which is installed at the bottom of the flue gas waste heat absorption box 1, and the waste exhaust box 501 is connected to the V-shaped flue 2. A smoke collecting box 502 is installed in the waste exhaust box 501, and the smoke collecting box 502 is connected to the pushing device 503. The pushing device 503 is installed on the waste exhaust box 501 through a bracket 504. An outlet for moving the smoke collecting box 502 is provided on the waste exhaust box 501, and the outlet is correspondingly arranged with the pushing device 503. A smoke exhaust port 505 is provided at the bottom of the smoke collecting box 502, and the V-shaped flue 2 can be cleaned by the smoke collecting box 502. The smoke accumulated in the exhaust box 501 is collected. At the same time, since the smoke collecting box 502 is located at the lowest end of the V-shaped flue 2, the smoke changes its movement direction at the corner of the lowest end and its speed decreases, so that a large number of large particles of smoke accumulate, and the smoke cleaning effect is better. By setting a pushing device 503, the pushing device 503 can be a cylinder. The extension of the piston rod of the pushing device 503 can push the smoke collecting box 502 to extend from the outlet position on the waste box 501. A smoke discharge port 505 is provided at the bottom of the smoke collecting box 502, and the collected smoke is discharged regularly through the smoke discharge port 505.

[0043] like Figure 4As shown, the bottom of the smoke dust collecting box 502 is tilted, and the smoke dust discharge port 505 is arranged at the lowest end of the tilted smoke dust collecting box 502. By tilting the bottom of the smoke dust collecting box 502, the smoke can be accumulated at the lowest end of the tilted smoke dust collecting box 502. By setting the smoke dust discharge port 505 at the lowest end of the tilted smoke dust collecting box 502, the smoke in the smoke dust collecting box 502 can be discharged smoothly.

[0044] like Figure 1 and Figure 4 As shown, a dilute solution input pipeline 12 and a concentrated solution output pipeline 13 are connected between the lithium bromide generator 7 and the absorber 8. A delivery pump 14 is installed on the dilute solution input pipeline 12, and the dilute solution in the absorber 8 is delivered to the lithium bromide generator 7 by the delivery pump 14. A first throttle valve 15 is installed on the concentrated solution output pipeline 13, and the first throttle valve 15 is provided to enable the lithium bromide concentrated solution to fully absorb the refrigerant vapor evaporated by the evaporator 10;

[0045] A steam pipe 16 is connected between the lithium bromide generator 7 and the condenser 9, a delivery pipe 17 is provided between the condenser 9 and the evaporator 10, and a second throttle valve 18 is installed on the delivery pipe 17;

[0046] Furthermore, a steam line 16 is also connected between the evaporator 10 and the absorber 8 .

[0047] like Figure 1 and Figure 4 As shown, the top of the lithium bromide generator 7 and the steam pipe 16 are connected in a funnel-shaped structure. By designing the top of the lithium bromide generator 7 into a funnel-shaped structure, it is convenient to collect the refrigerant steam;

[0048] A liquid level detection device 19 is also provided in the lithium bromide generator 7. The liquid level of the lithium bromide solution in the lithium bromide generator 7 can be detected by the liquid level detection device 19. When the liquid level of the lithium bromide solution is lower than the set value, an alarm can be given in time.

[0049] For ease of understanding, the working process of this embodiment is given below:

[0050] like Figure 1-Figure 4As shown, first, the flue gas enters the V-shaped flue 2 through the flue gas input pipe 3. During the movement of the flue gas in the V-shaped flue 2, the flue gas exchanges heat with the heat pipe assembly 6. Since the end of the heat pipe body 601 close to the evaporation part is provided with an inclined elliptical heat exchange plate 602, the heat exchange efficiency between the heat pipe body 601 and the flue gas is increased by the elliptical heat exchange plate 602, so that the medium in the heat pipe body 601 evaporates and absorbs heat to change into a gas state, and is transferred to the lithium bromide generator 7. The end of the heat pipe body 601 close to the condensation part is provided with a circular heat exchange plate 603. The circular heat exchange plate 603 increases the heat exchange efficiency between the heat pipe body 601 and the lithium bromide solution in the lithium bromide generator 7, so that the medium in the heat pipe body 601 condenses and releases heat to change into a liquid state, and The lithium bromide solution in the lithium bromide generator 7 is heated to evaporate the water in the lithium bromide solution into refrigerant vapor and enter the condenser 9. After the water in the lithium bromide solution evaporates, the lithium bromide solution gradually concentrates from a dilute solution to a high-concentration lithium bromide solution, and the concentrated solution is transported to the absorber 8 through the first throttle valve 15. The evaporated refrigerant vapor enters the condenser 9 to undergo a phase change and liquefaction, and releases heat. After that, it passes through the second throttle valve 18 and enters the evaporator 10 to expand and evaporate, and then changes phase to a gas state, absorbing the heat of the cooled space to achieve refrigeration, and the gaseous refrigerant vapor enters the absorber 8 and is absorbed by the concentrated high-concentration lithium bromide solution, becomes a dilute solution, and is transported back to the lithium bromide generator 7, thereby forming a cycle.

[0051] In summary, the utility model provides a split lithium bromide absorption refrigeration generating device, which improves the recovery efficiency of flue gas waste heat through the structural design of the V-shaped flue and the heat pipe assembly. At the same time, the flue gas waste heat absorption box and the lithium bromide generator are split, which makes the equipment easy to repair and maintain.

[0052] It should be understood that the purpose of these embodiments is only to illustrate the utility model and is not intended to limit the protection scope of the utility model. In addition, it should also be understood that after reading the technical content of the utility model, those skilled in the art can make various changes, modifications and / or variations to the utility model, and all of these equivalent forms also fall within the protection scope defined by the claims attached to this application.

Claims

1. A split lithium bromide absorption refrigeration generating device, characterized in that: It comprises a flue gas waste heat absorption box, wherein a V-shaped flue is arranged in the flue gas waste heat absorption box, one end of the V-shaped flue is connected to a flue gas input pipe, the other end is connected to a flue gas output pipe, and the bottom of the V-shaped flue is connected to a smoke exhaust mechanism; A plurality of heat pipe assemblies are arranged in the flue gas waste heat absorption box, one end of the plurality of heat pipe assemblies extends into the V-shaped flue to form an evaporation part, and the other end extends into the lithium bromide generator to form a condensation part. The lithium bromide generator and the flue gas waste heat absorption box are separately arranged, and the lithium bromide generator is respectively connected to the absorber and the condenser, the condenser is connected to the evaporator, and the evaporator is connected to the absorber.

2. A split type lithium bromide absorption refrigeration generating device as claimed in claim 1, characterized in that: The heat pipe assembly includes a heat pipe body, an end of the heat pipe body close to the evaporation part is provided with an inclined elliptical heat exchange plate, the inclination direction of the elliptical heat exchange plate is consistent with the flue gas direction of the V-shaped flue, and an end of the heat pipe body close to the condensation part is provided with a circular heat exchange plate, and the circular heat exchange plate is horizontally arranged.

3. A split type lithium bromide absorption refrigeration generating device as claimed in claim 2, characterized in that: The heat pipe body is sleeved with a heat preservation and insulation layer, and the heat preservation and insulation layer is arranged between the lithium bromide generator and the V-shaped flue.

4. A split type lithium bromide absorption refrigeration generating device as claimed in claim 2, characterized in that: One end of the heat pipe body located in the V-shaped flue is arranged along the flue gas direction of the V-shaped flue; The elliptical heat exchange plates of two adjacent heat pipe bodies are arranged alternately; The circular heat exchange plates of two adjacent heat pipe bodies are also arranged alternately.

5. A split type lithium bromide absorption refrigeration generating device as claimed in claim 1, characterized in that: The smoke and dust waste discharge mechanism includes a waste discharge box, which is connected to the V-shaped flue. A smoke and dust collecting box is installed in the waste discharge box. The smoke and dust collecting box is connected to a pushing device, and the pushing device is installed on the waste discharge box through a bracket. The waste discharge box is provided with an outlet for moving the smoke and dust collecting box, and the outlet is arranged corresponding to the pushing device. A smoke and dust discharge port is provided at the bottom of the smoke and dust collecting box.

6. A split type lithium bromide absorption refrigeration generating device as claimed in claim 5, characterized in that: The bottom of the smoke dust collecting box is arranged obliquely, and the smoke dust discharge port is arranged at the lowest end of the inclined arrangement of the smoke dust collecting box.

7. A split type lithium bromide absorption refrigeration generating device as claimed in claim 1, characterized in that: A dilute solution input pipeline and a concentrated solution output pipeline are connected between the lithium bromide generator and the absorber, a delivery pump is installed on the dilute solution input pipeline, and a first throttle valve is installed on the concentrated solution output pipeline; A steam pipeline is connected between the lithium bromide generator and the condenser, a delivery pipeline is provided between the condenser and the evaporator, and a second throttle valve is installed on the delivery pipeline.

8. A split type lithium bromide absorption refrigeration generating device as claimed in claim 7, characterized in that: The top of the lithium bromide generator is connected to the steam pipe in a funnel-shaped structure; A liquid level detection device is also provided in the lithium bromide generator.

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