Efficient heat energy recovery device

Abstract

The utility model discloses an efficient heat energy recovery device which comprises a heat exchange box, the inner top wall of the heat exchange box is fixedly connected with a flow guide column, the lower surface of the flow guide column is fixedly connected with the inner bottom wall of the heat exchange box, the outer surface of the flow guide column is fixedly sleeved with a first spiral flow guide piece, and the outer side surface of the first spiral flow guide piece makes contact with the inner wall of the heat exchange box. The lower surface of the heat exchange box fixedly communicates with an air inlet connecting pipe, the upper surface of the heat exchange box is fixedly connected with a flow dividing disc, and the outer surface of the flow dividing disc fixedly communicates with a water inlet connecting pipe. Heat energy in smoke is fully recycled in a small space through two times of continuous heat exchange, the recycling efficiency of the heat energy is improved, and the effect that waste of the heat energy is avoided is achieved.

Description

Technical Field

[0001] The utility model relates to the technical field of heat energy recovery, in particular to a high-efficiency heat energy recovery device. Background Art

[0002] A large amount of heat energy is needed in daily life and social production, and this heat energy comes from various forms of energy in nature. The science and technology that directly or indirectly converts natural energy into heat energy to meet the needs of people's daily life and social production is called thermal energy engineering, which is a component of energy science. Heat recovery is to recover the waste heat or waste heat inside and outside the building, and use the recovered heat as a heat source for heating or other heating equipment, which has achieved the effect of environmental protection. Heat recovery is widely used in the chemical and processing industries. The chemical industry is a pillar industry of the national economy and provides a large number of daily necessities. In order to improve energy utilization, reduce primary energy consumption and pollutant emissions, an efficient heat recovery device is needed.

[0003] Most of the existing heat recovery devices transport flue gas through pipes, then conduct the heat in the flue gas through the pipes and heat the cold water outside the pipes to achieve heat recovery. Due to the limited length of the pipes, most of the heat in the flue gas will be discharged before the heat exchange is completed, resulting in waste of heat energy and the inability to efficiently and fully recover it. Utility Model Content

[0004] In view of the defects in the prior art, the utility model provides a high-efficiency heat energy recovery device, which can fully recover the heat energy in the flue gas in a smaller space through two consecutive heat exchanges, which not only improves the heat energy recovery efficiency but also avoids the waste of heat energy.

[0005] The utility model provides a high-efficiency heat recovery device, comprising a heat exchange box, the inner top wall of the heat exchange box is fixedly connected with a guide column, the lower surface of the guide column is fixedly connected with the inner bottom wall of the heat exchange box, the outer surface of the guide column is fixedly sleeved with a first spiral guide plate, the outer surface of the first spiral guide plate is in contact with the inner wall of the heat exchange box, the lower surface of the heat exchange box is fixedly connected with an air intake connecting pipe, the upper surface of the heat exchange box is fixedly connected with a diverter plate, and the outer surface of the diverter plate is fixedly connected with a water inlet connecting pipe;

[0006] The outer surface of the heat exchange box is provided with a double recovery device, and the double recovery device comprises an annular heat exchange block, and the inner wall of the annular heat exchange block is fixedly sleeved with the outer surface of the heat exchange box.

[0007] Preferably, a heat insulating sleeve is fixedly sleeved on the outer surface of the annular heat exchange block, support blocks distributed in an annular array are fixedly connected to the lower surface of the annular heat exchange block, and a flow guide pipe is fixedly connected to the inner wall of the heat exchange box.

[0008] Preferably, one end of the guide pipe passes through and extends to the interior of the annular heat exchange block, a second spiral guide plate is provided inside the annular heat exchange block, and an exhaust pipe is fixedly connected to the outer surface of the annular heat exchange block.

[0009] Preferably, a filter box is fixedly installed at one end of the exhaust pipe, and the inner bottom wall of the diverter plate is fixedly connected to first diverter pipes distributed in a linear array, and one end of each of the first diverter pipes passes through the heat exchange box and extends to the lower end of the first spiral guide vane.

[0010] Preferably, one end of the first shunt pipe is fixedly connected to a connecting elbow, one end of a plurality of connecting elbows passes through and extends to the interior of the annular heat exchange block, and one end of the connecting elbow is fixedly connected to a second shunt pipe.

[0011] Preferably, one end of each of the second diverter tubes passes through and extends to the upper surface of the annular heat exchange block, a heat preservation sleeve is fixedly sleeved on the outer surface of the second diverter tube, and one end of each of the second diverter tubes is fixedly connected to a water collecting tray.

[0012] Preferably, the upper surface of the water collecting tray is fixedly connected with a water outlet connecting pipe.

[0013] The beneficial effects of the utility model are embodied in:

[0014] By setting up a double recovery device, double heat exchange recovery of heat energy in the flue gas is achieved. Through two consecutive heat exchanges, the heat energy in the flue gas can be fully recovered in a smaller space, which not only improves the heat energy recovery efficiency but also avoids the waste of heat energy. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] In order to more clearly illustrate the specific implementation of the utility model or the technical solution in the prior art, the following is a brief introduction to the drawings required for the specific implementation or the prior art description. In all the drawings, similar elements or parts are generally identified by similar reference numerals. In the drawings, each element or part is not necessarily drawn according to the actual scale.

[0016] Figure 1 This is a front view of a high-efficiency heat recovery device provided by the utility model;

[0017] Figure 2 for Figure 1 A three-dimensional diagram of the structure of an annular heat exchange block of a high-efficiency heat recovery device is shown;

[0018] Figure 3 for Figure 1 A three-dimensional diagram of the heat exchange box structure of a high-efficiency heat recovery device shown;

[0019] Figure 4 for Figure 1 A three-dimensional diagram of the structure of a first spiral guide vane of a high-efficiency heat recovery device is shown.

[0020] In the accompanying drawings, 1. heat exchange box, 2. guide column, 3. first spiral guide vane, 4. air inlet connecting pipe, 5. diverter plate, 6. water inlet connecting pipe, 7. annular heat exchange block, 71. insulation sleeve, 72. support block, 73. guide pipe, 74. second spiral guide vane, 75. exhaust pipe, 76. filter box, 77. first diverter pipe, 78. connecting elbow, 79. second diverter pipe, 710. insulation sleeve, 711. water collecting tray, 712. water outlet connecting pipe. DETAILED DESCRIPTION

[0021] The following embodiments of the technical solution of the utility model are described in detail in conjunction with the accompanying drawings. The following embodiments are only used to more clearly illustrate the technical solution of the utility model, and are therefore only used as examples, and cannot be used to limit the protection scope of the utility model.

[0022] It should be noted that, unless otherwise specified, the technical terms or scientific terms used in this application should have the common meanings understood by technicians in the field to which the utility model belongs.

[0023] Reference Figure 1-4 , a high-efficiency heat energy recovery device, comprising a heat exchange box 1, a guide column 2 is fixedly connected to the inner top wall of the heat exchange box 1, the lower surface of the guide column 2 is fixedly connected to the inner bottom wall of the heat exchange box 1, a first spiral guide plate 3 is fixedly sleeved on the outer surface of the guide column 2, the outer surface of the first spiral guide plate 3 contacts the inner wall of the heat exchange box 1, an air intake connecting pipe 4 is fixedly connected to the lower surface of the heat exchange box 1, a diverter plate 5 is fixedly connected to the upper surface of the heat exchange box 1, and a water inlet connecting pipe 6 is fixedly connected to the outer surface of the diverter plate 5;

[0024] The outer surface of the heat exchange box 1 is provided with a double recovery device, and the double recovery device includes an annular heat exchange block 7 , and the inner wall of the annular heat exchange block 7 is fixedly sleeved with the outer surface of the heat exchange box 1 .

[0025] The outer surface of the annular heat exchange block 7 is fixedly sleeved with a heat insulation sleeve 71, which serves to prevent the temperature loss of the flue gas inside the annular heat exchange block 7. The lower surface of the annular heat exchange block 7 is fixedly connected with support blocks 72 distributed in an annular array. The inner wall of the heat exchange box 1 is fixedly connected with a guide pipe 73. One end of the guide pipe 73 penetrates and extends to the inside of the annular heat exchange block 7. The guide pipe 73 serves to transport the flue gas of the heat exchange box 1 to the inside of the annular heat exchange block 7. The inside of the annular heat exchange block 7 is provided with a second spiral guide plate 74. The outer surface of the annular heat exchange block 7 is fixedly connected to an exhaust pipe 75, and a filter box 76 is fixedly installed at one end of the exhaust pipe 75. The filter box 76 plays a role in filtering odors and harmful substances in the flue gas. The inner bottom wall of the diverter plate 5 is fixedly connected to first diverter pipes 77 distributed in a linear array. The diverter plate 5 uses multiple first diverter pipes 77 to increase the heat exchange contact area with the flue gas, thereby improving the heat exchange efficiency. One end of the multiple first diverter pipes 77 passes through the heat exchange box 1 and extends to the lower end of the first spiral guide plate 3.

[0026] One end of the first diversion pipe 77 is fixedly connected to a connecting elbow 78, one ends of multiple connecting elbows 78 all penetrate and extend to the interior of the annular heat exchange block 7, one end of the connecting elbow 78 is fixedly connected to a second diversion pipe 79, and the connecting elbow 78 serves to transport the liquid in the first diversion pipe 77 to the second diversion pipe 79, one ends of multiple second diversion pipes 79 all penetrate and extend to the upper surface of the annular heat exchange block 7, and the outer surface of the second diversion pipe 79 is fixedly sleeved with an insulation sleeve 710, and the insulation sleeve 710 serves to insulate the portion of the second diversion pipe 79 exposed outside the annular heat exchange block 7 to prevent heat loss, one end of multiple second diversion pipes 79 is fixedly connected to a water collecting pan 711, and the upper surface of the water collecting pan 711 is fixedly connected to a water outlet connecting pipe 712, and the water collecting pan 711 collects the water in the multiple second diversion pipes 79 and transports it to the next process through the water outlet connecting pipe 712.

[0027] By setting up a double recovery device, double heat exchange recovery of heat energy in the flue gas is achieved. Through two consecutive heat exchanges, the heat energy in the flue gas can be fully recovered in a smaller space, which not only improves the heat energy recovery efficiency but also avoids the waste of heat energy.

[0028] Working principle: Step 1, the flue gas is transported to the inside of the heat exchange box 1 through the air intake connecting pipe 4. In the process of upward transportation, the flue gas prolongs the contact time with the first diverter pipe 77 through the first spiral guide plate 3, thereby improving the heat exchange effect. When the flue gas is transported to the top of the heat exchange box 1 through the first spiral guide plate 3, it enters the inside of the annular heat exchange block 7 through the guide pipe 73, and then the remaining heat in the flue gas is guided by the second spiral guide plate 74 to exchange heat with the second diverter pipe 79 again. Finally, the flue gas after heat exchange is transported to the filter box 76 through the exhaust pipe 75, and is discharged after being filtered by the filter box 76.

[0029] Step two, at the same time, cold water is transported to the diverter plate 5 through the water inlet connecting pipe 6, and the cold water is transported to multiple first diverter tubes 77 through the diverter plate 5. The cold water is transported by multiple diverter tubes, thereby increasing the contact area with the heat in the flue gas, thereby improving the heat exchange efficiency. The first diverter tube 77 transports the warm water after heat exchange through the connecting elbow 78 to the second diverter tube 79, so as to cooperate with the flue gas inside the annular heat exchange block 7 for heat exchange again. Finally, the second diverter tube 79 transports the warm water to the water collecting tray 711, and transports it to the next process through the water outlet connecting pipe 712.

[0030] Finally, it should be noted that the above embodiments are only used to illustrate the technical solution of the utility model, rather than to limit it. Although the utility model has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or replace some or all of the technical features therein by equivalents. These modifications or replacements do not make the essence of the corresponding technical solutions deviate from the scope of the technical solutions of the embodiments of the utility model, and they should all be included in the scope of the claims and specification of the utility model.

Claims

1. A high-efficiency heat recovery device, comprising a heat exchange box (1), characterized in that: The inner top wall of the heat exchange box (1) is fixedly connected to a guide column (2), the lower surface of the guide column (2) is fixedly connected to the inner bottom wall of the heat exchange box (1), the outer surface of the guide column (2) is fixedly sleeved with a first spiral guide plate (3), the outer surface of the first spiral guide plate (3) is in contact with the inner wall of the heat exchange box (1), the lower surface of the heat exchange box (1) is fixedly connected to an air intake connecting pipe (4), the upper surface of the heat exchange box (1) is fixedly connected to a diverter plate (5), and the outer surface of the diverter plate (5) is fixedly connected to a water intake connecting pipe (6); The outer surface of the heat exchange box (1) is provided with a double recovery device, and the double recovery device comprises an annular heat exchange block (7), the inner wall of the annular heat exchange block (7) being fixedly sleeved with the outer surface of the heat exchange box (1).

2. A high-efficiency heat recovery device according to claim 1, characterized in that: The outer surface of the annular heat exchange block (7) is fixedly sleeved with a heat insulation sleeve (71), the lower surface of the annular heat exchange block (7) is fixedly connected with support blocks (72) distributed in an annular array, and the inner wall of the heat exchange box (1) is fixedly connected with a flow guide pipe (73).

3. A high-efficiency heat recovery device according to claim 2, characterized in that: One end of the guide pipe (73) passes through and extends into the interior of the annular heat exchange block (7); a second spiral guide plate (74) is provided inside the annular heat exchange block (7); and an exhaust pipe (75) is fixedly connected to the outer surface of the annular heat exchange block (7).

4. A high-efficiency heat recovery device according to claim 3, characterized in that: A filter box (76) is fixedly mounted on one end of the exhaust pipe (75), and the inner bottom wall of the diverter plate (5) is fixedly connected to first diverter pipes (77) distributed in a linear array, and one end of each of the first diverter pipes (77) passes through the heat exchange box (1) and extends to the lower end of the first spiral guide plate (3).

5. A high-efficiency heat recovery device according to claim 4, characterized in that: One end of the first shunt pipe (77) is fixedly connected to a connecting elbow (78), one end of a plurality of connecting elbows (78) penetrates and extends into the interior of the annular heat exchange block (7), and one end of the connecting elbow (78) is fixedly connected to a second shunt pipe (79).

6. A high-efficiency heat recovery device according to claim 5, characterized in that: One end of each of the plurality of second diverter tubes (79) passes through and extends to the upper surface of the annular heat exchange block (7); a heat preservation sleeve (710) is fixedly sleeved on the outer surface of the second diverter tube (79); and one end of each of the plurality of second diverter tubes (79) is fixedly connected to a water collecting tray (711).

7. A high-efficiency heat recovery device according to claim 6, characterized in that: The upper surface of the water collecting tray (711) is fixedly connected to a water outlet connecting pipe (712).

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