Boiler flue gas waste heat heating equipment

Abstract

The utility model discloses boiler flue gas waste heat heating equipment which comprises a heat preservation box and a multi-fold heat conduction pipe, connector pipes are fixedly installed in the middles of the two sides of the heat preservation box in the width direction, a cold water tank and second liquid pumps are arranged on the two sides of the heat preservation box in the length direction respectively, and two first liquid pumps are fixedly installed on the upper surface of the cold water tank. The water outlet ends of the two first liquid pumps are fixedly connected with water inlet pipes in a sleeving mode, and the outer surfaces of the top ends of the two water inlet pipes penetrate through the inner surface of the top of the heat preservation box and are fixedly connected with spraying head sets in a sleeving mode. The outer surfaces of the two ends of the two multi-fold heat conduction pipes are fixedly connected with the inner surfaces of the ends, close to each other, of the two connector pipes in a sleeved mode respectively, and a conical filter plate is arranged below the multi-fold heat conduction pipes. By means of the structures such as the spraying head set, the multi-fold heat conduction pipe and the conical filter plate, cold water makes full contact with and absorbs heat emitted by boiler flue gas in the multi-fold heat conduction pipe, and the utilization rate of waste heat of the boiler flue gas is increased.

Description

TECHNICAL FIELD

[0001] The utility model relates to a boiler flue gas utilization technical field more specifically, the utility model relates to a kind of boiler flue gas waste heat heating equipment. BACKGROUND

[0002] Boiler flue gas utilization refers to recycling the waste heat and useful substances in the high-temperature flue gas discharged by the boiler, improving energy utilization efficiency and reducing environmental pollution. By utilizing flue gas waste heat to heat water, air or steam, fuel consumption is reduced, and energy utilization rate is improved.

[0003] After searching, the publication number CN222257039U discloses a kind of boiler flue gas waste heat utilization device, it includes boiler, chimney and preheating water tank, boiler right side outlet fixedly connected with chimney, heating coil is arranged on the outer wall of chimney from bottom to top, preheating water tank upper portion first inlet fixedly connected with water supplementing pipeline, preheating water tank lower portion outlet and heating coil lower end inlet fixedly connected with first processing pipeline.The utility model is reasonable and compact in structure, convenient to use, which heats the process water in the preheating water tank through the process water in the chimney waste heat centering, and sends out when the temperature detector detects that the process water temperature reaches the production requirement, effectively recycling flue gas waste heat, effectively solving the problem of heat source waste existing in the fact that existing boiler flue gas preheating cannot be recycled.

[0004] However, the boiler flue gas waste heat utilization device still has the following disadvantages, for example: the technical scheme can effectively alleviate the problem of heat source waste caused by the fact that boiler flue gas cannot be recycled. However, in actual application, since the heating coil cannot completely cover the outer wall of the chimney, as the height of the chimney increases, flue gas waste heat gradually decreases, and the water heated inside the heating coil gradually decreases in temperature under the action of external environment due to the long distance between the heating coil and the preheating water tank, resulting in limited waste heat recovery efficiency and unresolved heat resource waste problem. UTILITY MODEL CONTENTS

[0005] In order to overcome the above-mentioned defects of the prior art, the utility model provides a kind of boiler flue gas waste heat heating equipment to solve the problem that part of the boiler flue gas waste heat can be recycled in the prior art, but due to incomplete coil coverage and chimney height, the waste heat is not fully utilized, and heat resource waste still exists.

[0006] To solve the above technical problems, the utility model provides the following technical scheme: a kind of boiler flue gas waste heat heating equipment, comprising

[0007] The heat preservation box is provided with two joint pipes symmetrically arranged at the middle of the two sides in the width direction, two cold water boxes and two liquid pumps II arranged at the two sides in the length direction, two liquid pumps I fixedly arranged on the upper surface of the cold water box, water inlet pipes fixedly sleeved with the outlet ends of the two liquid pumps I, and spray head groups fixedly sleeved with the outer surfaces of the top ends of the two water inlet pipes and penetrating through the inner surface of the top of the heat preservation box.

[0008] The two multi-fold heat conducting pipes are fixedly sleeved with the inner surfaces of the end portions of the two joint pipes which are close to each other.

[0009] The outer surfaces of the two ends of the two main shafts are rotatably arranged on the inner surfaces of the two sides in the width direction of the heat preservation box, and the interior of the joint pipe close to the air inlet end is provided with a rotary conversion assembly.

[0010] The rotary conversion assembly comprises a fixed frame and a fixed block, the fixed frame is parallelly arranged in the interior of the joint pipe at the air inlet end, the outer surfaces of the two fixed frames are fixedly arranged on the inner surfaces of the joint pipe, an axle rod I is rotatably arranged at the middle portion of the fixed frame, a fan blade is fixedly sleeved with the outer surface of the middle portion of the axle rod I, a bevel gear I is fixedly sleeved with the outer surface of the end portion of the axle rod I, the bottom of the fixed block is fixedly arranged on the outer surface of the joint pipe, two symmetrically arranged bevel gears II are rotatably sleeved with the middle portion of the fixed block, a bevel gear III is rotatably arranged on the top end of the fixed block, the end portions of the two bevel gears II are connected, the two bevel gears II are meshed with the bevel gear I and the bevel gear III, an axle rod II is fixedly sleeved with the middle portion of the bevel gear III, and a reciprocating movement assembly is arranged at the end portion of the axle rod II.

[0011] The reciprocating movement assembly comprises a crank link reciprocating mechanism and a slave gear, the inner surface of the bottom end of the crank link reciprocating mechanism is sleeved with the outer surface of the axle rod II, the surface of the top portion of the crank link reciprocating mechanism is fixedly arranged on the outer surface of the heat preservation box, the outer surfaces of the two ends of the bottom portion of the crank link reciprocating mechanism are fixedly arranged with connecting frames, the sides of the two connecting frames which are away from each other are fixedly arranged with racks, two slave gears are arranged at the end portions of the two main shafts and are fixedly sleeved with the middle portions of the main shafts through axle rods III, and the slave gears are meshed with the racks.

[0012] Compared with the prior art, the heat preservation box has the advantages that:

[0013] In the scheme, the pipeline of the boiler exhaust flue gas is connected with the joint pipe on the left side of the heat preservation box for air inlet, and then the boiler flue gas is divided into two multi-turn heat pipes which are connected with the joint pipe, and the cold water in the cold water tank is pumped into the water inlet pipe and the inside of the spray head group by the liquid pump, and sprayed on the outer surface of the multi-turn heat pipe, and the waste heat of the boiler flue gas in the multi-turn heat pipe heats the cold water sprayed on the surface, and the water flow is slowly flowed into the inner cavity at the bottom of the conical filter plate, and gathered at the top of the conical filter plate to fully contact the multi-turn heat pipe, so that the cold water fully contacts and absorbs the heat emitted by the boiler flue gas in the multi-turn heat pipe, and the temperature is slowed down under the heat preservation effect of the heat preservation box, and the utilization rate of the boiler flue gas waste heat is improved.

[0014] In the scheme, the rotary conversion assembly arranged in the joint pipe at the air inlet end converts the kinetic energy generated by the boiler flue gas during the flow process into mechanical force for driving the up-down reciprocating movement of the crank link reciprocating mechanism, so that the connecting frame connected at both ends of the crank link reciprocating mechanism moves up and down, drives the connected rack to move up and down, drives the meshed gear to rotate clockwise and counterclockwise, and further drives the connected main shaft and the spray head group connected on the surface of the main shaft to reciprocate, so that the spray head group is swung by the propulsion of the boiler flue gas, and the cold water can be sprayed on the surface of the multi-turn heat pipe in a large range, and the contact area and the heat absorption effect are improved. BRIEF DESCRIPTION OF DRAWINGS

[0015] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0016] Figure 2 It is a schematic diagram of the spray head group, the multi-turn heat pipe, the conical filter plate and other structures of the utility model;

[0017] Figure 3 It is a schematic diagram of the rotary conversion assembly structure of the utility model;

[0018] Figure 4 It is a schematic diagram of the reciprocating movement assembly structure of the utility model.

[0019] [REFERENCE SIGNS]

[0020] 1, incubator; 2, joint pipe; 3, cold water tank; 4, liquid pump one; 5, water inlet pipe; 6, spray head group; 7, multi-fold heat pipe; 8, conical filter plate; 9, liquid pump two; 10, main shaft; 11, rotary conversion assembly; 110, fixed frame; 111, fan blade; 112, bevel gear one; 113, fixed block; 114, bevel gear two; 115, bevel gear three; 12, reciprocating moving assembly; 120, crank connecting rod reciprocating mechanism; 121, connecting frame; 122, rack; 123, pinion. DETAILED DESCRIPTION

[0021] In order to make the technical problems, technical schemes and advantages to be solved by the utility model more clear, the following will be described in detail in combination with the drawings and specific embodiments.

[0022] As shown in the accompanying Figure 1 to the accompanying Figure 4 The embodiment of the utility model provides a kind of boiler flue gas waste heat heating equipment, comprising

[0023] Incubator 1, the middle part of the two sides of the width direction of incubator 1 is fixedly installed with joint pipe 2, the two sides of the length direction of incubator 1 are provided with cold water tank 3 and liquid pump two 9 respectively, the upper surface of cold water tank 3 is fixedly installed with two liquid pump one 4, the water outlet end of two liquid pump one 4 is fixedly sleeved with water inlet pipe 5, the outer surface of the top end of two water inlet pipes 5 is fixedly sleeved with spray head group 6 penetrating the inner surface of the top of incubator 1;

[0024] Multi-fold heat pipe 7, two multi-fold heat pipes 7 are symmetrically arranged in the middle part of the inner cavity of incubator 1, the outer surface of the two ends of two multi-fold heat pipes 7 is fixedly sleeved with the inner surface of the end of two joint pipes 2 close to each other, conical filter plate 8 is arranged below multi-fold heat pipe 7, and the outer edge of conical filter plate 8 is fixedly installed with the inner surface of incubator 1.

[0025] Among them, the upper surface of two spray head groups 6 is fixedly installed with main shaft 10, the outer surface of the two ends of two main shafts 10 is rotatably installed with the inner surface of the two sides of the width direction of incubator 1, and the inside of joint pipe 2 close to air inlet end is provided with rotary conversion assembly 11.

[0026] The rotating conversion assembly 11 comprises two fixed frames 110, two fixed blocks 113, two joint pipes 2, two shaft rods 1, two bevel gears 112, two bevel gears 114, a bevel gear 115, a reciprocating moving assembly 12 and a heat preservation box 1.

[0027] The rotating conversion assembly 11 is arranged, in the process of the boiler flue gas air intake, the fan blade 111 is driven to rotate, the kinetic energy of the gas is converted into the rotating mechanical energy of the fan blade 111, the shaft rod 1 fixedly sleeved in the middle of the fan blade 111 rotates along the inner surface of the middle of the fixed frame 110, drives the bevel gear 112 connected at the end to rotate, the bevel gear 114 engaged with the bevel gear 112 rotates, drives the other bevel gear 114 coaxially connected through the shaft rod 2 to rotate, further drives the bevel gear 115 engaged to rotate, drives the crank connecting rod reciprocating mechanism 120 connected with the bevel gear 115 through the shaft rod 3 to move.

[0028] The reciprocating moving assembly 12 comprises a crank connecting rod reciprocating mechanism 120 and a pinion gear 123, the inner surface of the bottom end of the crank connecting rod reciprocating mechanism 120 is sleeved on the outer surface of the shaft rod 2, the surface of the top is fixedly installed on the outer surface of the heat preservation box 1, the outer surfaces of the two ends of the bottom of the crank connecting rod reciprocating mechanism 120 are fixedly installed with connecting frames 121, the side surfaces of the two connecting frames 121 away from each other are fixedly installed with racks 122, the pinion gear 123 is arranged at the ends of the two main shafts 10 and is fixedly sleeved on the middle of the main shaft 10 through the shaft rod 3, and the pinion gear 123 is engaged with the rack 122.

[0029] The crank connecting rod reciprocating mechanism 120 is a mechanical device for converting rotary motion into linear reciprocating motion or converting linear reciprocating motion into rotary motion, which is usually composed of a crank, a connecting rod and a sliding block.

[0030] The working process of the utility model is as follows:

[0031] The pipe for discharging boiler flue gas is connected with the joint pipe 2 on the left side of the heat preservation box 1 for air inlet, then the boiler flue gas is divided into two multi-fold heat conducting pipes 7 and flows into the inside of the two multi-fold heat conducting pipes 7, when the boiler flue gas flows through the return pipe in the heat preservation box 1, the cold water in the cold water tank 3 is pumped into the inside of the water inlet pipe 5 and the spray head group 6 by the liquid pump 4 and sprayed on the outer surface of the multi-fold heat conducting pipe 7, the waste heat of the boiler flue gas in the multi-fold heat conducting pipe 7 heats the cold water sprayed on the surface, and due to the setting of the conical filter plate 8, the water flow rate flowing into the bottom inner cavity is slow, the water gathered on the top of the conical filter plate 8 continues to fully contact the multi-fold heat conducting pipe 7, so that the cold water fully contacts and absorbs the heat emitted by the boiler flue gas in the multi-fold heat conducting pipe 7, and under the heat preservation effect of the heat preservation box 1, the temperature drop is slowed down, and the utilization rate of the boiler flue gas waste heat is improved.

[0032] In addition, in the process of boiler flue gas air inlet, the rotary conversion assembly 11 arranged in the joint pipe 2 at the air inlet end converts the kinetic energy generated by the boiler flue gas in the flow process into mechanical force for driving the up-down reciprocating movement of the crank link reciprocating mechanism 120, so that the connecting frame 121 connected at both ends of the crank link reciprocating mechanism 120 moves up and down, drives the connected rack 122 to move up and down, drives the meshed from gear 123 to rotate clockwise and counterclockwise reciprocatingly, further drives the connected main shaft 10 and the spray head group 6 connected on the surface of the main shaft 10 to reciprocate, so as to realize the swing effect of the spray head group 6 by using the propulsion force of the boiler flue gas air inlet, so that the cold water can be sprayed on the surface of the multi-fold heat conducting pipe 7 in a large range, and the contact area and the heat absorption effect are improved.

[0033] Finally, it should be pointed out that: first of all, in the description of the present application, it should be pointed out that unless otherwise specified and limited, the terms "installation", "connection", "connection" should be understood broadly, which can be mechanical connection or electrical connection, or the communication between two elements, or direct connection, "up", "down", "left", "right" and the like are only used to represent the relative positional relationship, when the absolute position of the described object changes, the relative positional relationship may change;

[0034] Secondly: the utility model discloses the embodiment attached diagram only relates to the structure involved in the embodiment of the present disclosure, and other structures can refer to the usual design, and under the condition of no conflict, the same embodiment and different embodiments of the utility model can be combined with each other.

[0035] Finally: the preferred embodiments of the utility model are described above, and the utility model is not limited to the preferred embodiments, and any modification, equivalent replacement, improvement and the like made within the spirit and principle of the utility model should be included in the protection scope of the utility model.

Claims

1. A boiler flue gas waste heat heating device, characterized in that, include The insulation box (1) has a connector pipe (2) fixedly installed in the middle of both sides of the insulation box (1) in the width direction. The insulation box (1) has a cold water tank (3) and a liquid pump (9) respectively on both sides in the length direction. Two liquid pumps (4) are fixedly installed on the upper surface of the cold water tank (3). The outlet end of the two liquid pumps (4) is fixedly connected to the inlet pipe (5). The outer surface of the top of the two inlet pipes (5) penetrates the inner surface of the top of the insulation box (1) and is fixedly connected to the spray head assembly (6). Two multi-fold heat-conducting pipes (7) are symmetrically arranged in the middle of the inner cavity of the heat preservation box (1). The outer surfaces of the two ends of the multi-fold heat-conducting pipes (7) are fixedly sleeved with the inner surfaces of the two connector pipes (2) that are close to each other. A conical filter plate (8) is arranged below the multi-fold heat-conducting pipes (7). The outer edge of the conical filter plate (8) is fixedly installed with the inner surface of the heat preservation box (1).

2. The boiler flue gas waste heat supply equipment according to claim 1, characterized in that, The upper surfaces of the two spray head assemblies (6) are fixedly mounted with main shafts (10). The outer surfaces of the two main shafts (10) at both ends are rotatably mounted with the inner surfaces of the two sides of the insulation box (1) in the width direction. A rotary conversion assembly (11) is provided inside the connector pipe (2) near the air inlet end.

3. The boiler flue gas waste heat supply equipment according to claim 2, characterized in that, The rotary conversion assembly (11) includes a fixed frame (110) and a fixed block (113). Two fixed frames (110) are arranged parallel to each other inside the connector pipe (2) at the air inlet end. The outer surfaces of the two fixed frames (110) are fixedly installed with the inner surface of the connector pipe (2), and a shaft is rotatably installed in the middle. A fan blade (111) is fixedly sleeved on the outer surface of the middle part of the shaft, and a bevel gear (112) is fixedly sleeved on the outer surface of the end. The bottom of the fixed block (113) is connected to the connector pipe (2). The outer surface of the head tube (2) is fixedly installed, and two symmetrically arranged bevel gears (114) are rotatably sleeved in the middle. A bevel gear (115) is rotatably installed on the top of the fixed block (113). The ends of the two bevel gears (114) are connected to each other. The two bevel gears (114) mesh with bevel gears (112) and bevel gears (115) respectively. A shaft (2) is fixedly sleeved in the middle of the bevel gear (115), and a reciprocating moving component (12) is provided at the end of the shaft (2).

4. The boiler flue gas waste heat supply equipment according to claim 3, characterized in that, The reciprocating motion assembly (12) includes a crank-connecting rod reciprocating mechanism (120) and a driven gear (123). The inner surface of the bottom end of the crank-connecting rod reciprocating mechanism (120) is sleeved on the outer surface of the shaft two, and the top surface is fixedly installed with the outer surface of the insulation box (1). Connecting brackets (121) are fixedly installed on the outer surfaces of both ends of the bottom of the crank-connecting rod reciprocating mechanism (120). Racks (122) are fixedly installed on the sides of the two connecting brackets (121) that are far apart from each other. Two driven gears (123) are provided at the ends of the two main shafts (10), and are fixedly sleeved with the middle part of the main shaft (10) through the shaft three. The driven gears (123) and racks (122) mesh with each other.

Images