Boiler flue gas circulating condensing device

Abstract

The utility model relates to the technical field of flue gas waste heat recovery, in particular to a boiler flue gas circulation condensation device which comprises a condensation mechanism, the condensation mechanism comprises a cooling box, a condensation circulation pipe set is arranged in the cooling box, and the bottom of the cooling box is communicated with two recovery pipe sets. The top of the cooling box is communicated with an air inlet pipe and a first exhaust pipe, and one outer wall of the cooling box is communicated with a second exhaust pipe. According to the device, the second partition plate is rotationally connected to the bottom of the first partition plate, after the condensation circulating pipe set is locally hot, the hydraulic rod can be started to drive the second partition plate to move downwards, the first partition plate is pulled to rotate, the round hole is blocked through the clamping plate, the overall trend of smoke is changed, and the condensation circulating pipe set is reversely utilized in a reciprocating mode; and the situation that the condensation effect is reduced due to the fact that the temperature of part of pipelines of the condensation circulation pipe set is high for a long time is prevented, the smoke trend can be conveniently adjusted and controlled, the utilization rate of the condensation pipe set is conveniently increased, the smoke condensation effect is optimized, and use is convenient.

Description

Technical Field

[0001] The utility model relates to the technical field of flue gas waste heat recovery, in particular to a boiler flue gas circulation condensing device. Background Art

[0002] The boiler room installs a flue gas preheating recovery device at the chimney to condense the flue gas to absorb heat and then discharge it. The recovered heat is used to heat the water in the recovery device, and the water is introduced into the water supply tank of the steam boiler after heating. This can reduce fuel consumption and achieve the effect of saving energy and reducing carbon emissions. The flue gas can be cooled from 130 degrees to 50 degrees after treatment, and the circulating water inside the condenser and the condensed water outside are heated to varying degrees and can be recycled for utilization. In some existing flue gas condensing devices, the direction of the flue gas is fixed, so that the position of the condenser tube group close to the air inlet is stable and high, and the temperature is gradually reduced along the path of the flue gas. The high local temperature reduces the condensation effect of the condenser tube group, which is not convenient for regulating the direction of the flue gas and improving the utilization rate of the condenser tube group, resulting in poor condensation effect of the flue gas and inconvenient use. Utility Model Content

[0003] The purpose of the utility model is to provide a boiler flue gas circulation condensing device to solve the problems raised in the above background technology.

[0004] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0005] A boiler flue gas circulation condensing device comprises a condensing mechanism, which comprises a cooling box, a condensing circulation pipe group is arranged inside the cooling box, the bottom of the cooling box is connected to two recovery pipe groups, the top of the cooling box is connected to an air intake pipe and an exhaust pipe 1, the outer wall of the cooling box 1 is connected to an exhaust pipe 2, a partition 1 is rotatably connected to the inner top wall of the cooling box, one end of the partition 1 is rotatably connected to the partition 2, and the bottom of the cooling box is provided with a driving module for performing deformation control on the partition 1 and the partition 2.

[0006] Preferably, guide blocks are fixedly connected at four corners inside the cooling box.

[0007] Furthermore, the driving module includes a fixing plate. A base is fixedly connected to the bottom of the cooling box. An L-shaped seat is fixedly connected to the inner bottom surface of the base. A hydraulic rod is fixedly sleeved inside the L-shaped seat. The output end of the hydraulic rod is fixedly connected to the bottom of the fixing plate. Two connecting rods are symmetrically and fixedly connected to the top of the fixing plate. A second guiding rod is fixedly connected to the inner bottom surface of the cooling box. Both of the two connecting rods penetrate through the cooling box and the second guiding rod. A first guiding rod is fixedly connected between the tops of the two connecting rods. The first guiding rod can be movably clamped with the second guiding rod. Two fixing rods are symmetrically and fixedly connected to the outer wall of the cooling box. A limiting rod is fixedly connected to the bottom end of the fixing rod. The limiting rod penetrates through the first guiding rod and is slidably connected thereto.

[0008] Furthermore, a round hole is formed in the bottom of the first partition board. A sliding groove is formed in the top of the first partition board. The sliding groove communicates with the round hole. A clamping plate for regulating the round hole is slidably connected inside the sliding groove. A first baffle for regulating the first exhaust pipe is slidably connected to the inner top wall of the cooling box. A second baffle for regulating the second exhaust pipe is slidably connected to an inner wall of the cooling box.

[0009] Furthermore, one end of the clamping plate is fixedly connected to a sliding rod. The sliding rod penetrates through the first partition board and is slidably connected thereto. A first return spring is fixedly connected between the sliding rod and the first partition board. An installation groove is formed in the inner top wall of the cooling box. A wire reel is rotatably connected between the two inner walls of the installation groove. Torsion springs are fixedly connected between both ends of the wire reel and the cooling box. A first pulling rope is fixedly connected to the inner wall of the wire reel. One end of the first pulling rope is rotatably connected to the top of the clamping plate.

[0010] Furthermore, a plurality of sliders are fixedly connected to the top of the first baffle and one side of the second baffle. The sliders are slidably connected between the adjacent inner walls of the cooling box. A second return spring is fixedly connected between the sliders and the cooling box. Two second pulling ropes are rotatably connected to one side of the second partition board. One end of the second pulling rope is rotatably connected to the bottom of the first baffle. Two third pulling ropes are rotatably connected to the other side of the second partition board. One end of the third pulling rope is rotatably connected to the bottom of the second baffle.

[0011] Preferably, the first pulling rope, the second pulling rope and the third pulling rope are all made of aramid fiber ropes.

[0012] Compared with the prior art, the beneficial effects of the present utility model are:

[0013] 1. By rotatably connecting a second partition plate to the bottom of the first partition plate, after a local part of the condensation circulation pipe group becomes relatively hot, the hydraulic rod can be activated to drive the second partition plate to move downward, pulling the first partition plate to rotate, and the clamping plate seals the round hole, changing the overall direction of the flue gas, and repeatedly reversely utilizing the condensation circulation pipe group, preventing the condensation effect from decreasing due to some pipes of the condensation circulation pipe group having a high temperature for a long time, facilitating the regulation of the direction of the flue gas, improving the utilization rate of the condensation pipe group, optimizing the condensation effect of the flue gas, and being convenient to use. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 is a schematic diagram of the overall structure of the present utility model;

[0015] Figure 2-4 is a schematic diagram showing the internal structure of the cooling box of the present utility model from multiple angles;

[0016] Figure 5 is a schematic diagram of the driving module structure of the present utility model;

[0017] Figure 6 is a schematic diagram of the side sectional structure of the cooling box of the present utility model;

[0018] Figure 7 is a schematic diagram of the side sectional structure of the first partition plate of the present utility model;

[0019] Figure 8 is the present utility model Figure 6 partial enlarged structure schematic diagram at position A in.

[0020] In the figure: 10, condensation mechanism; 11, cooling box; 111, intake pipe; 112, first exhaust pipe; 113, second exhaust pipe; 114, base; 115, recovery pipe group; 116, guiding block; 117, installation groove; 12, condensation circulation pipe group; 13, first partition plate; 131, round hole; 132, sliding groove; 133, clamping plate; 134, sliding rod; 135, first return spring; 136, wire reel; 137, torsion spring; 138, first pulling rope; 14, second partition plate; 15, first baffle; 151, second baffle; 152, second pulling rope; 153, third pulling rope; 154, slider; 155, second return spring; 16, driving module; 161, fixing plate; 162, connecting rod; 163, first guiding rod; 164, fixing rod; 165, limiting rod; 166, second guiding rod; 167, U-shaped seat; 168, hydraulic rod. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0021] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present utility model without creative efforts shall fall within the protection scope of the present utility model.

[0022] Please refer to Figures 1 to 8 , in the embodiment of the present utility model, a boiler flue gas circulation condensation device includes a condensation mechanism 10. The condensation mechanism 10 includes a cooling box 11. A condensation circulation pipe group 12 is arranged inside the cooling box 11. Two recovery pipe groups 115 are communicated with the bottom of the cooling box 11. An air inlet pipe 111 and a first exhaust pipe 112 are communicated with the top of the cooling box 11. A second exhaust pipe 113 is communicated with an outer wall of the cooling box 11. A partition plate one 13 is rotatably connected to the inner top wall of the cooling box 11. One end of the partition plate one 13 is rotatably connected to a partition plate two 14. A driving module 16 for deforming and regulating the partition plate one 13 and the partition plate two 14 is arranged at the bottom of the cooling box 11.

[0023] Specifically, by rotatably connecting a partition plate two 14 to the bottom of the partition plate one 13, after a part of the condensation circulation pipe group 12 gets hotter, the hydraulic rod 168 is started to drive the partition plate two 14 to move downward, pulling the partition plate one 13 to rotate, and the clamping plate 133 blocks the circular hole 131, changing the overall flow direction of the flue gas, reversely utilizing the condensation circulation pipe group 12, preventing the condensation effect from decreasing due to the long-term high temperature of some pipes in the condensation circulation pipe group 12, and being convenient to use.

[0024] Embodiment 1

[0025] As Figure 3-5 shown, in this embodiment, the driving module 16 includes a fixing plate 161. A base 114 is fixedly connected to the bottom of the cooling box 11. A U-shaped seat 167 is fixedly connected to the inner bottom surface of the base 114. A hydraulic rod 168 is fixedly sleeved inside the U-shaped seat 167. The output end of the hydraulic rod 168 is fixedly connected to the bottom of the fixing plate 161. Two connecting rods 162 are symmetrically and fixedly connected to the top of the fixing plate 161. A guiding rod two 166 is fixedly connected to the inner bottom surface of the cooling box 11. Both connecting rods 162 penetrate through the cooling box 11 and the guiding rod two 166. A guiding rod one 163 is fixedly connected between the tops of the two connecting rods 162. The guiding rod one 163 can be movably clamped with the guiding rod two 166. Two fixing rods 164 are symmetrically and fixedly connected to the outer wall of the cooling box 11. A limiting rod 165 is fixedly connected to the bottom end of the fixing rod 164. The limiting rod 165 penetrates through the guiding rod one 163 and is slidably connected thereto.

[0026] In this embodiment, in the initial state, the partition 13 is in contact with the top wall of the cooling box 11, and the partition 2 14 is in a vertical state. The flue gas enters the cooling box 11 through the circular hole 131 through the air inlet pipe 111, and is transmitted from the bottom of the partition 2 14 around the whole in a "U" shape. During the process, it is fully in contact with the condensing circulation pipe group 12 for heat recovery, and is finally discharged from the exhaust pipe 112. The temperature of the condensing circulation pipe group 12 near the bottom of the air inlet pipe 111 is higher, and the temperature gradually decreases with the running trajectory of the flue gas. Therefore, the local temperature of the condensing circulation pipe group 12 is high for a long time, and the condensation effect decreases. The hydraulic rod 168 is started through the fixed plate 161 and the connecting rod 16 2 Pull the guide rod 1 163 downward until the guide rod 163 is engaged with the guide rod 2 166. In the process, the partition 2 14 is pulled downward by the fixing rod 164, thereby driving the partition 13 to rotate, and the circular hole 131 is blocked. The switching conditions of the exhaust pipe 1 112 and the exhaust pipe 2 113 are reversed. At this time, the smoke flows from the top of the partition 13 to the other side of the partition 2 14, and goes around from the bottom of the partition 2 14 to the top, and is discharged from the exhaust pipe 2 113, which is opposite to the initial path. The temperature condition of the condensing circulation pipe group 12 is reversely utilized, thereby avoiding the problem that the condensing effect is reduced due to the long-term high temperature of some pipes of the condensing circulation pipe group 12.

[0027] like Figure 3 As shown, in this embodiment, guide blocks 116 are fixedly connected at the four corners of the interior of the cooling box 11 .

[0028] In specific implementation, by setting the guide block 116, the smoke and condensed water can be effectively guided to prevent the condensed water from remaining in the corner for a long time.

[0029] Embodiment 2

[0030] On the basis of the first embodiment, in order to be able to automatically perform synchronous regulation on the exhaust pipe 1 112 and the exhaust pipe 2 113 when the partition 1 13 and the partition 2 14 are driven.

[0031] like Figure 1-8As shown, in this embodiment, a circular hole 131 is provided at the bottom of the partition 13, a sliding groove 132 is provided at the top of the partition 13, the sliding groove 132 is connected to the circular hole 131, and a card plate 133 for regulating the circular hole 131 is slidably connected inside the sliding groove 132, a baffle 15 for regulating the exhaust pipe 112 is slidably connected on the inner top wall of the cooling box 11, and a baffle 2 151 for regulating the exhaust pipe 2 113 is slidably connected on an inner wall of the cooling box 11, a sliding rod 134 is fixedly connected at one end of the card plate 133, the sliding rod 134 passes through the partition 13 and is slidably connected thereto, a return spring 135 is fixedly connected between the sliding rod 134 and the partition 13, a mounting groove 117 is provided on the inner top wall of the cooling box 11, and a wire drum 136 is rotatably connected between the two inner walls of the mounting groove 117, Both ends of the wire drum 136 are fixedly connected to the cooling box 11 with a torsion spring 137, a pull rope 138 is fixedly connected to the inner wall of the wire drum 136, one end of the pull rope 138 is rotatably connected to the top of the clamping plate 133, a plurality of sliders 154 are fixedly connected to the top of the baffle 15 and one side of the baffle 2 151, the slider 154 is slidably connected between the adjacent inner walls of the cooling box 11, a return spring 2 155 is fixedly connected between the slider 154 and the cooling box 11, one side of the partition 2 14 is rotatably connected to two pull ropes 2 152, one end of the pull rope 2 152 is rotatably connected to the bottom of the baffle 1 15, the other side of the partition 2 14 is rotatably connected to two pull ropes 3 153, one end of the pull rope 3 153 is rotatably connected to the bottom of the baffle 2 151, and the pull rope 138, the pull rope 2 152 and the pull rope 3 153 are all made of aramid fiber ropes.

[0032] In specific implementation, the flue gas of the air inlet pipe 111 is guided through the circular hole 131 so that the flue gas can pass through the partition 13, and the circular hole 131 is blocked and expanded by the sliding of the card plate 133, so that the initial direction of the flue gas can be determined, and the switch states of the exhaust pipe 112 and the exhaust pipe 2 113 can be regulated by sliding the baffle 15 and the baffle 2 151 respectively, so as to determine the exhaust direction of the flue gas, and the overall direction of the flue gas is regulated in conjunction with the circular hole 131, so that the flue gas contacts the condensation circulation pipe group 12 from different directions. When the partition 2 14 pulls the partition 13 to rotate, the card plate 133 pulls the pull rope 138 to release the line, and when the pull rope 138 is released and straightened, it will pull the card plate 13 3 is moved to drive the card plate 133 to block the circular hole 131. When the partition 13 rotates in the opposite direction, the torsion spring 137 drives the wire drum 136 to rotate to reel in the pull rope 138. The card plate 133 slides and resets under the drive of the reset spring 135. The partition 14 is pulled horizontally by the partition 13 during the downward movement. The baffle 15 is pulled horizontally by the pull rope 152 to block the exhaust pipe 112, and the baffle 151 is pulled downward by the pull rope 3 153 to prevent the exhaust pipe 113 from leaking. The continuous use temperature range of aramid fiber is -196°C to 204°C. It does not decompose or melt at a high temperature of 560°C. It has high strength and high modulus, so it can cope with the high temperature operating environment inside the cooling box 11.

[0033] It is obvious to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above, and that the present invention can be implemented in other specific forms without departing from the spirit or essential features of the present invention. Therefore, the embodiments should be regarded as exemplary and non-restrictive from any point of view, and the scope of the present invention is defined by the appended claims rather than the above description, and it is intended that all changes falling within the meaning and scope of the equivalent elements of the claims be included in the present invention. Any reference numeral in a claim should not be regarded as limiting the claim to which it relates.

[0034] In addition, it should be understood that although the present specification is described according to implementation modes, not every implementation mode contains only one independent technical solution. This description of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment may also be appropriately combined to form other implementation modes that can be understood by those skilled in the art.

Claims

1. A boiler flue gas circulation condensation device, comprising a condensation mechanism, wherein the condensation mechanism comprises a cooling box, wherein a condensation circulation pipe group is arranged inside the cooling box, and the bottom of the cooling box is connected to two recovery pipe groups, wherein: An intake pipe and an exhaust pipe 1 are connected to the top of the cooling box. An exhaust pipe 2 is connected to the outer wall of the cooling box 1. A partition 1 is rotatably connected to the inner top wall of the cooling box. One end of the partition 1 is rotatably connected to a partition 2. A driving module for deforming and regulating the partition 1 and the partition 2 is arranged at the bottom of the cooling box.

2. A boiler flue gas circulation condensation device according to claim 1, characterized in that: Guide blocks are fixedly connected to the four corners inside the cooling box.

3. A boiler flue gas circulation condensing device according to claim 1, characterized in that: The driving module includes a fixing plate. A base is fixedly connected to the bottom of the cooling box. A U-shaped seat is fixedly connected to the inner bottom surface of the base. A hydraulic rod is fixedly sleeved inside the U-shaped seat. The output end of the hydraulic rod is fixedly connected to the bottom of the fixing plate. Two connecting rods are symmetrically and fixedly connected to the top of the fixing plate. A guide rod 2 is fixedly connected to the inner bottom surface of the cooling box. Both connecting rods penetrate through the cooling box and the guide rod 2. A guide rod 1 is fixedly connected between the tops of the two connecting rods. The guide rod 1 can be movably clamped with the guide rod 2. Two fixing rods are symmetrically and fixedly connected to the outer wall of the cooling box. A limiting rod is fixedly connected to the bottom end of the fixing rod. The limiting rod penetrates through the guide rod 1 and is slidably connected to it.

4. A boiler flue gas circulation condensation device according to claim 1, characterized in that: A round hole is opened at the bottom of the partition 1. A chute is opened at the top of the partition 1. The chute is communicated with the round hole. A clamping plate for regulating the round hole is slidably connected inside the chute. A baffle 1 for regulating the intake pipe 1 is slidably connected to the inner top wall of the cooling box. A baffle 2 for regulating the exhaust pipe 2 is slidably connected to the inner wall of the cooling box 1.

5. A boiler flue gas circulation condensation device according to claim 4, characterized in that: One end of the clamping plate is fixedly connected to a sliding rod. The sliding rod penetrates through the partition 1 and is slidably connected to it. A return spring 1 is fixedly connected between the sliding rod and the partition 1. An installation groove is opened on the inner top wall of the cooling box. A wire reel is rotatably connected between the two inner walls of the installation groove. Torsion springs are fixedly connected between both ends of the wire reel and the cooling box. A pulling rope 1 is fixedly connected to the inner wall of the wire reel. One end of the pulling rope 1 is rotatably connected to the top of the clamping plate.

6. A boiler flue gas circulation condensing device according to claim 5, characterized in that: A plurality of sliders are fixedly connected to the top of the baffle 1 and one side of the baffle 2. The sliders are slidably connected between the adjacent inner walls of the cooling box. A return spring 2 is fixedly connected between the sliders and the cooling box. Two pulling ropes 2 are rotatably connected to one side of the partition 2. One end of the pulling rope 2 is rotatably connected to the bottom of the baffle 1. Two pulling ropes 3 are rotatably connected to the other side of the partition 2. One end of the pulling rope 3 is rotatably connected to the bottom of the baffle 2.

7. A boiler flue gas circulation condensing device according to claim 6, characterized in that: The pulling rope 1, the pulling rope 2 and the pulling rope 3 are all made of aramid fiber ropes.

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