Smoke-water heat exchange device of gas generator set

Abstract

The utility model discloses a smoke water heat exchange device of a gas generator set in the technical field of gas generator sets, which comprises a heat exchange pipe, one end of the heat exchange pipe is connected with a gas inlet pipe, the other end of the heat exchange pipe is connected with a gas outlet pipe, the bottom of the gas outlet pipe is connected with a liquid discharge pipe, and the inner side of the heat exchange pipe is provided with a flow guide cavity. A heat conduction cavity is formed in the inner side of the heat exchange pipe and located on the outer side of the flow guide cavity, smoke enters the flow guide cavity in the heat exchange pipe through the air inlet pipe and is guided out through the air outlet pipe, steam in the smoke is guided out through the liquid discharging pipe, water enters the heat conduction cavity through the liquid inlet pipe, and heat in the smoke heats water in the heat conduction cavity through the heating assembly. The heated water is guided out through the liquid outlet pipe, the heat preservation assembly can wrap the heat exchange pipe for heat insulation and heat preservation, and the problems that the smoke flowing speed of heat exchange equipment is high, the heat insulation effect of the heat exchange equipment is poor, heat dissipation and loss are caused, and the utilization rate and practicability of the equipment for conducting heat exchange and recovery on smoke heat are affected are solved.

Description

Technical Field

[0001] The utility model relates to the technical field of gas generator sets, in particular to a smoke-water heat exchange device for a gas generator set. Background Art

[0002] The gas generator set is composed of gas engine, generator, control cabinet and other components. The gas engine and generator are installed on the same steel chassis. The unit uses natural gas, wellhead associated gas, coal mine gas, water gas, refinery tail gas, biogas and other combustible gases as fuel. It starts quickly and has good economy. Especially due to the demand for high-quality urban life, gas generator sets have been widely used in telecommunications, libraries, hospitals, hotels and other departments as backup power sources. The temperature of the engine set exhaust gas is very high when it is discharged, and directly discharging the exhaust gas causes heat waste.

[0003] Existing equipment directly discharges exhaust gas, resulting in heat waste. The flue gas flow rate of the heat exchange equipment is fast, and the insulation effect of the heat exchange equipment is poor, resulting in heat dissipation and loss, affecting the utilization rate and practicality of the equipment to recover the flue gas heat through heat exchange. Therefore, technical personnel in this field provide a flue gas-water heat exchange device for a gas-fired generator set to solve the problems raised in the above background technology. Utility Model Content

[0004] The purpose of the utility model is to provide a smoke-water heat exchange device for a gas-fired generator set to solve the problems raised in the above-mentioned background technology.

[0005] To achieve the above object, the utility model provides the following technical solution: a smoke-water heat exchange device for a gas-fired generator set, comprising a heat exchange tube, one end of the heat exchange tube is connected to an air inlet pipe, the other end of the heat exchange tube is connected to an air outlet pipe, and the bottom of the air outlet pipe is connected to a liquid drain pipe;

[0006] A flow guide cavity is provided on the inner side of the heat exchange tube, a heat conduction cavity is provided on the inner side of the heat exchange tube and outside the flow guide cavity, a liquid inlet pipe is connected to one side of the heat conduction cavity, a liquid outlet pipe is connected to the bottom of the heat conduction cavity, a heating component is installed on the outer side of the heat conduction cavity, a heat preservation component is installed on the outer side of the heat exchange tube, and both ends of the flow guide cavity are respectively connected to the air inlet pipe and the air outlet pipe.

[0007] Preferably: the heating assembly includes a guide plate installed on the inner side of the heat exchange tube for guiding flow, the inner side of the guide plate is connected to a fixed shaft, the outer side of the heat conduction cavity is connected to a heating ring, the guide plate is spiral, and the guide plate is fixedly connected to the fixed shaft.

[0008] Preferably, the heating assembly further comprises a plurality of heat-conducting rings evenly arranged on the outside of the flow-conducting cavity, one side of the heating ring is connected to a plurality of fins evenly arranged, and the heating ring is embedded with the heat-conducting ring.

[0009] Preferably: the insulation component includes two insulation shells respectively mounted on the outside of the heat exchange tube, an insulation cavity is opened inside the insulation shell, an insulation pad is connected to the inside of the insulation cavity, two fixing blocks are respectively connected to both sides of the insulation shell, and the two fixing blocks are installed and fixed by bolts.

[0010] Preferably: a heat insulation board is laid inside the heat insulation cavity and outside the heat insulation pad, and a plurality of heat insulation grooves are evenly arranged on one side of the heat insulation board.

[0011] Preferably, a flow hole is provided on one side of the fin.

[0012] Preferably, the bottom of the guide plate is provided with a plurality of evenly arranged notches.

[0013] Compared with the prior art, the beneficial effects of the utility model are:

[0014] 1. In the utility model, by setting a guide cavity and a heating cavity, the flue gas enters the guide cavity in the heat exchange tube through the air inlet pipe, the flue gas is discharged through the air outlet pipe, the steam in the flue gas is discharged through the liquid discharge pipe, and the water enters the heat conduction cavity through the liquid inlet pipe. The heat in the flue gas heats the water in the heat conduction cavity through the heating component, and the heated water is discharged through the liquid outlet pipe. In addition, the insulation component can wrap the heat exchange tube for thermal insulation to avoid heat loss and waste.

[0015] 2. In the utility model, by arranging a guide plate, a heating ring, a heat-conducting ring and fins, when the flue gas enters the guide cavity, it is guided by the guide plate, the flow path of the flue gas is extended, and the heat of the flue gas is transferred to the heat-conducting cavity through the guide cavity. The heat-conducting ring can increase the contact area between the guide cavity and the heat-conducting cavity, the heat-conducting ring can conduct heat to the heating ring, and then the multiple fins on the outside of the heating ring increase the contact area between the heating ring and the aqueous solution, so that the heat in the flue gas in the guide cavity is used to heat the water in the heat-conducting cavity through the heat-conducting ring, the heating ring and the fins, and the heated hot water is discharged through the liquid outlet pipe, thereby improving the efficiency of flue gas heat exchange utilization.

[0016] 3. In the utility model, an insulation shell, an insulation cavity and an insulation pad are provided, and the insulation shell is installed and fixed by bolts penetrating the fixing blocks at both ends thereof, so as to facilitate the disassembly and assembly of the insulation shell. The insulation pad in the insulation cavity can insulate the heat, and the insulation plate insulates the heat exchange tube, so as to avoid the waste of heat dissipation in the heat exchange tube and improve the utilization rate of heat recovery. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0018] Figure 2 It is a left-side cutaway stereoscopic view of the overall structure of the utility model;

[0019] Figure 3The overall structure of the utility model Figure 2 Enlarged view of point A in the middle;

[0020] Figure 4 It is a schematic diagram of the structure of the heating ring, fins and flow holes in the overall structure of the utility model;

[0021] Figure 5 It is a structural schematic diagram of the guide plate, the fixed shaft and the notch in the overall structure of the utility model.

[0022] In the figure: 1. heat exchange tube; 2. air inlet pipe; 3. air outlet pipe; 4. drain pipe; 5. guide chamber; 6. heat conduction chamber; 7. liquid inlet pipe; 8. liquid outlet pipe; 9. guide plate; 10. fixed shaft; 11. heating ring; 12. heat conduction ring; 13. fin; 14. insulation shell; 15. insulation chamber; 16. insulation pad; 17. fixed block; 18. insulation board; 19. insulation groove; 20. flow hole; 21. notch. DETAILED DESCRIPTION

[0023] 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 in 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.

[0024] See also Figure 1 to Figure 5 In an embodiment of the utility model, a smoke-water heat exchange device of a gas-fired generator set includes a heat exchange tube 1, one end of the heat exchange tube 1 is connected to an air inlet pipe 2, the other end of the heat exchange tube 1 is connected to an air outlet pipe 3, the bottom of the air outlet pipe 3 is connected to a drain pipe 4, a flow guide cavity 5 is opened on the inside of the heat exchange tube 1, a heat conduction cavity 6 is opened on the inside of the heat exchange tube 1 and located outside the flow guide cavity 5, one side of the heat conduction cavity 6 is connected to a liquid inlet pipe 7, the bottom of the heat conduction cavity 6 is connected to a liquid outlet pipe 8, a heating component is installed on the outside of the heat conduction cavity 6, and an insulation component is installed on the outside of the heat exchange tube 1, and the two ends of the flow guide cavity 5 are respectively connected to the air inlet pipe 2 and the air outlet pipe 3.

[0025] When in use, the flue gas enters the guide cavity 5 in the heat exchange tube 1 through the air inlet pipe 2, the flue gas is discharged through the air outlet pipe 3, the steam in the flue gas is discharged through the drain pipe 4, and the water enters the heat conduction cavity 6 through the liquid inlet pipe 7. The heat in the flue gas heats the water in the heat conduction cavity 6 through the heating component, and the heated water is discharged through the liquid outlet pipe 8. The insulation component can wrap the heat exchange tube 1 for insulation and heat preservation to avoid heat loss and waste.

[0026] In one embodiment, specifically, the heating component includes a guide plate 9 installed on the inner side of the heat exchange tube 1 for guiding flow, the inner side of the guide plate 9 is connected to a fixed shaft 10, the outer side of the heat conduction cavity 6 is connected to a heating ring 11, the heating component also includes a plurality of heat conduction rings 12 evenly arranged on the outer side of the guide cavity 5, a plurality of fins 13 evenly arranged are connected to one side of the heating ring 11, a flow hole 20 is provided on one side of the fin 13, a plurality of notches 21 evenly arranged are provided on the bottom of the guide plate 9, the heating ring 11 is embedded with the heat conduction ring 12, the guide plate 9 is spiral, and the guide plate 9 is fixedly connected to the fixed shaft 10.

[0027] Among them, when the flue gas enters the guide chamber 5, it is guided by the guide plate 9. The multiple notches 21 at the bottom of the guide plate 9 can facilitate the flow of steam and liquid in the flue gas, extend the flue gas flow path, and transfer the heat of the flue gas to the heat conduction chamber 6 through the guide chamber 5. The heat conduction ring 12 can increase the contact area between the guide chamber 5 and the heat conduction chamber 6. The heat conduction ring 12 can conduct heat to the heating ring 11. The multiple guide holes in the fins 13 can facilitate the flow of the aqueous solution. Then the multiple fins 13 outside the heating ring 11 increase the contact area between the heating ring 11 and the aqueous solution. Therefore, the heat in the flue gas in the guide chamber 5 is heated by the heat conduction ring 12, the heating ring 11 and the fins 13 to the water in the heat conduction chamber 6. The heated hot water is discharged through the liquid outlet pipe 8, thereby improving the efficiency of flue gas heat exchange utilization.

[0028] Furthermore, the insulation component includes two insulation shells 14 respectively mounted on the outside of the heat exchange tube 1, an insulation cavity 15 is opened on the inside of the insulation shell 14, an insulation pad 16 is connected to the inside of the insulation cavity 15, two fixing blocks 17 are respectively connected to both sides of the insulation shell 14, an insulation board 18 is laid on the inside of the insulation cavity 15 and on the outside of the insulation pad 16, a plurality of insulation grooves 19 are evenly arranged on one side of the insulation board 18, and the two fixing blocks 17 are installed and fixed by bolts.

[0029] In one embodiment, specifically, bolts are used to penetrate the fixing blocks 17 at both ends of the insulation shell 14 for installation and fixing, so as to facilitate the disassembly and assembly of the insulation shell 14. The insulation pad 16 in the insulation cavity 15 can insulate the heat, and the insulation plate 18 insulates the heat exchange tube 1 to avoid waste of heat dissipation in the heat exchange tube 1 and improve the utilization rate of heat recovery.

[0030] The working principle of this utility model:

[0031] First, the flue gas enters the guide cavity 5 in the heat exchange tube 1 through the air inlet pipe 2, and then the flue gas after absorbing heat is discharged through the air outlet pipe 3, and then the steam in the flue gas is discharged through the drain pipe 4, and then the water enters the heat conduction cavity 6 through the liquid inlet pipe 7. At this time, the heat in the flue gas heats the water in the heat conduction cavity 6. When the flue gas enters the guide cavity 5, it is guided by the guide plate 9 to extend the flue gas flow path, and then the heat of the flue gas is transferred to the heat conduction cavity 6 through the guide cavity 5 for heat conduction. At this time, the heat in the flue gas in the guide cavity 5 heats the water in the heat conduction cavity 6 through the heat conduction ring 12, the heating ring 11 and the fin 13, and the aqueous solution in the heat conduction cavity 6 flows through the guide holes on the fin 13, and then the hot water is discharged through the liquid outlet pipe 8. At the same time, the insulation shell 14 insulates and heat-insulates the heat exchange tube 1. At this time, the insulation pad 16 and the insulation plate 18 in the insulation cavity 15 insulate and heat-insulate the heat in the heat exchange tube 1 to avoid heat dissipation and waste in the heat exchange tube 1.

[0032] The above are only preferred specific implementation methods of the utility model, but the protection scope of the utility model is not limited to this. Any technician familiar with the technical field within the technical scope disclosed by the utility model, who makes equivalent replacements or changes based on the technical scheme and utility model concept of the utility model, should be covered by the protection scope of the utility model.

Claims

1. A smoke-water heat exchange device for a gas-fired generator set, comprising a heat exchange tube (1), characterized in that: One end of the heat exchange tube (1) is connected to an air inlet pipe (2), the other end of the heat exchange tube (1) is connected to an air outlet pipe (3), and the bottom of the air outlet pipe (3) is connected to a liquid discharge pipe (4); A flow guide cavity (5) is provided on the inner side of the heat exchange tube (1), a heat conduction cavity (6) is provided on the inner side of the heat exchange tube (1) and located outside the flow guide cavity (5), one side of the heat conduction cavity (6) is connected to a liquid inlet pipe (7), the bottom of the heat conduction cavity (6) is connected to a liquid outlet pipe (8), a heating component is installed on the outer side of the heat conduction cavity (6), a heat preservation component is installed on the outer side of the heat exchange tube (1), and both ends of the flow guide cavity (5) are respectively connected to the air inlet pipe (2) and the air outlet pipe (3).

2. The smoke-water heat exchange device of a gas-fired generator set according to claim 1, characterized in that: The heating assembly comprises a guide plate (9) installed on the inner side of the heat exchange tube (1) for guiding flow, the inner side of the guide plate (9) is connected to a fixed shaft (10), the outer side of the heat conduction cavity (6) is connected to a heating ring (11), the guide plate (9) is spiral-shaped, and the guide plate (9) is fixedly connected to the fixed shaft (10).

3. The smoke-water heat exchange device of a gas-fired generator set according to claim 2, characterized in that: The heating assembly further comprises a plurality of heat-conducting rings (12) arranged evenly on the outside of the flow-guiding cavity (5); one side of the heating ring (11) is connected to a plurality of fins (13) arranged evenly; the heating ring (11) is engaged with the heat-conducting ring (12).

4. The smoke-water heat exchange device of a gas-fired generator set according to claim 1, characterized in that: The heat-insulating assembly comprises two heat-insulating shells (14) respectively sleeved on the outside of the heat exchange tube (1), a heat-insulating cavity (15) is provided inside the heat-insulating shell (14), a heat-insulating pad (16) is connected inside the heat-insulating cavity (15), and two fixing blocks (17) are respectively connected to the two sides of the heat-insulating shell (14), and the two fixing blocks (17) are installed and fixed by bolts.

5. The smoke-water heat exchange device of a gas-fired generator set according to claim 4, characterized in that: A heat insulation board (18) is laid inside the heat insulation cavity (15) and outside the heat insulation pad (16), and a plurality of heat insulation grooves (19) are evenly arranged on one side of the heat insulation board (18).

6. The smoke-water heat exchange device of a gas-fired generator set according to claim 3, characterized in that: A flow hole (20) is formed on one side of the fin (13).

7. The smoke-water heat exchange device of a gas-fired generator set according to claim 2, characterized in that: The bottom of the guide plate (9) is provided with a plurality of evenly arranged notches (21).

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