CN218179712U

CN218179712U - Flue gas heat energy recovery device of gas plant

Info

Publication number: CN218179712U
Application number: CN202220215873.4U
Authority: CN
Inventors: 谢加杭
Original assignee: Xi'an Lvyuan Chuanqi Environmental Protection Technology Co ltd
Current assignee: Xi'an Lvyuan Chuanqi Environmental Protection Technology Co ltd
Priority date: 2022-01-26
Filing date: 2022-01-26
Publication date: 2022-12-30
Anticipated expiration: 2032-01-26

Abstract

The utility model provides a flue gas heat recovery unit of gas factory relates to gas factory technical field, including the water tank, equipment box and the dust removal subassembly that sets up impurity in the equipment box is arranged in filtering the flue gas, water tank top fixed mounting has equipment box, the inside fixed mounting of water tank has the fixed plate, the inside fixed mounting of water tank has serpentine structure's heat exchange tube, the positive fixed mounting of water tank has the display screen, the dust removal subassembly is including inserting board and laying dust bag, the fluting has been seted up at equipment box top, the inside board that inserts that is "mouthful" font structure that is provided with of fluting, insert board one side fixedly connected with laying dust bag. The device is used through the cooperation of baffle, heat exchange tube and fixed plate, can improve heat exchange efficiency, uses through the cooperation of laying dust bag, active carbon filter screen and hair-dryer, can filter impurity and harmful substance in the flue gas.

Description

Flue gas heat energy recovery device of gas plant

Technical Field

The utility model relates to a gas factory technical field specifically is gas factory flue gas heat recovery unit.

Background

The gas fuel is a general term of gas fuel, can be combusted to release heat for residents and industrial enterprises, has various types, mainly comprises natural gas, artificial gas, liquefied petroleum gas and methane, and is a circulating system formed by a gas turbine, a generator, a waste heat boiler and a steam turbine.

And current gas factory is after burning gas, and the flue gas after the burning is inside to have a large amount of heats, need use the heat recovery device to retrieve the heat in the flue gas, reduces thermal loss.

In the actual process, the flue gas generated after the fuel of the gas plant is combusted still has a large amount of heat, a recovery device is required to be used for collecting and recycling the heat in the flue gas so as to save energy and improve the resource utilization rate, the aim of recovering heat energy is achieved by generally discharging the flue gas into water and absorbing the heat in the flue gas through water, the water absorbing the heat energy can be used for heating and the like of a plant area, but is directly discharged into the water, the rising speed of the flue gas is high, the time of heat exchange with water is short, the recovered heat energy is limited, meanwhile, as part of the fuel is not completely combusted, a large amount of impurities and harmful substances are generated, the harmful substances and the impurities in the flue gas are required to be effectively filtered when the flue gas is discharged, so that the harmful substances and the impurities are prevented from being discharged to the outside to cause air pollution, and if the flue gas is directly discharged into the water for heat energy recovery, the water absorbing the heat energy is easily polluted by the harmful impurities in the flue gas, so that the water absorbing the heat energy can not be directly used, the water is required to be filtered again, and the workload is increased.

SUMMERY OF THE UTILITY MODEL

The utility model aims at solving the shortcoming that exists among the background art, provide gas factory flue gas heat recovery unit, use through the cooperation of baffle, heat exchange tube and fixed plate, can improve heat exchange efficiency, use through the cooperation of laying dust bag, active carbon filter screen and hair-dryer, can filter impurity and harmful substance in the flue gas.

In order to achieve the purpose, the utility model provides the following technical scheme, a flue gas heat energy recovery device of a gas plant comprises a water tank, an equipment box and a dust removal component which is arranged in the equipment box and used for filtering impurities in flue gas;

an equipment box is fixedly arranged at the top of the water tank, a fixing plate is fixedly arranged in the water tank, and a heat exchange tube with a snake-shaped structure is fixedly arranged in the water tank;

the dust removal assembly comprises an insertion plate and a dust accumulation bag, a notch is formed in the top of the equipment box, the insertion plate which is of a square-shaped structure is arranged inside the notch, and the dust accumulation bag is fixedly connected to one side of the insertion plate.

Furthermore, an insertion groove is formed in the inner wall of the bottom of the equipment box, a rubber pad is arranged inside the insertion groove, and the insertion plate is inserted into the insertion groove through the groove.

Furthermore, the inside fixed mounting of equipment box has the hair-dryer, the venthole has been seted up to equipment box one side, just the inside active carbon filter screen that is provided with of venthole.

Furthermore, a plurality of through holes are formed in the surface of the fixing plate, the through holes are uniformly distributed in a rectangular array, and the fixing plate is made of an aluminum alloy material.

Furthermore, the bottom of the water tank is fixedly connected with an air inlet pipe, the top end of the air inlet pipe is connected with a heat exchange pipe, and one end, far away from the air inlet pipe, of the heat exchange pipe penetrates through the water tank and is communicated with the inside of the equipment box.

Furthermore, the heat exchange tube runs through the fixed plate, a plurality of baffles are arranged inside the heat exchange tube, and the baffles are uniformly distributed in a staggered mode.

Further, a plurality of bracing pieces of water tank bottom fixedly connected with, bracing piece bottom fixedly connected with base, water tank one side fixedly connected with inlet tube, water tank opposite side fixedly connected with outlet pipe.

Furthermore, a temperature sensor is fixedly mounted on the inner wall of one side of the water tank, and a signal output end of the temperature sensor is in signal connection with a signal receiving end of the display screen.

The utility model provides a flue gas heat recovery unit of gas factory has following beneficial effect:

1. the utility model discloses the advantage lies in, through the polylith baffle, increases the area of contact of flue gas and heat exchange tube for heat in the flue gas can be more the transmission to the heat exchange tube on, then through serpentine structure's heat exchange tube and fixed plate, can increase with the area of contact of water, improve heat exchange efficiency.

2. Secondly, through laying dust bag and active carbon filter screen, can adsorb the impurity and the harmful substance in the flue gas and filter, avoid the impurity and the harmful substance in the flue gas direct discharge to the external world, cause near air pollution.

Drawings

Fig. 1 is a schematic view of the overall structure of the present invention.

Fig. 2 is a cross-sectional view of the overall structure of the present invention.

Fig. 3 is a schematic view of the structure of the insertion plate of the present invention.

Fig. 4 is a schematic view of the fixing plate structure of the present invention.

Fig. 5 is a schematic view of the baffle structure of the present invention.

Fig. 6 is an enlarged view of a point a in fig. 2 according to the present invention.

In FIGS. 1-6: 1. a water tank; 101. a support bar; 102. a base; 103. a water inlet pipe; 104. a water outlet pipe; 105. a temperature sensor; 2. a heat exchange pipe; 201. a baffle plate; 202. an air inlet pipe; 3. a fixing plate; 301. A through hole; 4. an equipment box; 401. a blower; 402. an air outlet; 403. inserting the groove; 404. a rubber pad; 5. an insert plate; 501. a dust accumulation bag.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts all belong to the protection scope of the present invention.

Example (b):

referring to figures 1-6 of the drawings,

the gas plant flue gas heat energy recovery device provided by the embodiment comprises a water tank 1, an equipment box 4 and a dust removal assembly arranged in the equipment box 4 and used for filtering impurities in flue gas;

an equipment box 4 is fixedly arranged at the top of the water tank 1, a fixing plate 3 for fixing the heat exchange tube 2 is fixedly arranged in the water tank 1, and the heat exchange tube 2 with a snake-shaped structure is fixedly arranged in the water tank 1 and used for exchanging heat for water in the water tank 1;

dust removal component has seted up the fluting including inserting board 5 and laying dust bag 501 at 4 tops of equipment box, and fluting inside is provided with and is "mouthful" font structure insert board 5, inserts 5 one side fixedly connected with laying dust bag 501 of board.

Furthermore, an insertion groove 403 is formed in the inner wall of the bottom of the equipment box 4, a rubber pad 404 is arranged inside the insertion groove 403, the insertion plate 5 is inserted into the insertion groove 403 through the groove, when the dust bag 501 needs to be replaced, the insertion plate 5 is taken out of the equipment box 4 through the groove, then dust impurities accumulated in the dust bag 501 are processed, then the processed dust bag 501 is inserted into the equipment box 4 through the insertion plate 5 and the groove, the bottom end of the insertion plate 5 is inserted into the insertion groove 403, the rubber pad 404 is extruded by the insertion plate 5 to be elastically deformed, the insertion groove 403 is completely blocked by the rubber pad 404, and smoke is prevented from flowing out through a gap between the insertion plate 5 and the insertion groove 403.

Further, the inside fixed mounting of equipment box 4 has hair-dryer 401, venthole 402 has been seted up to equipment box 4 one side, and the inside active carbon filter screen that is provided with of venthole 402, start hair-dryer 401, make hair-dryer 401 blow out the gas in equipment box 4, make the inside negative pressure that produces of equipment box 4, with the gas suction in the heat exchange tube 2 to equipment box 4 in, then collect the absorption through the dust particle of laying dust bag 501 in with the flue gas, adsorb the harmful substance in the flue gas through the active carbon filter screen simultaneously, avoid discharging the dust particle or the harmful substance in the flue gas too much, cause environmental pollution.

Further, a plurality of through-holes 301 have been seted up on fixed plate 3 surface, and a plurality of through-holes 301 are rectangular array align to grid and distribute, and fixed plate 3 is made for aluminum alloy material, through the flow of the rivers of being convenient for of a plurality of through-holes 301, and the aluminum alloy has high heat conductivility for fixed plate 3 can conduct the heat on the heat transfer pipe 2, increases the area of contact with water, improves heat exchange efficiency.

Further, 1 bottom fixedly connected with intake pipe 202 of water tank, and the intake pipe 202 top is connected with heat exchange tube 2, and heat exchange tube 2 is kept away from the one end of intake pipe 202 and is run through water tank 1 and switch on with equipment box 4 is inside mutually, injects the high temperature flue gas after the burning into heat exchange tube 2 through intake pipe 202.

Further, heat exchange tube 2 runs through fixed plate 3, heat exchange tube 2 is inside to be provided with a plurality of baffles 201, and a plurality of baffles 201 are crisscross evenly distributed, then the flue gas is when serpentine structure's heat exchange tube 2, carry out the heat exchange with the water in the water tank 1, heat conduction in the flue gas is to the aquatic, realize heat recovery's effect, increase the area of contact of flue gas and heat exchange tube 2 through a plurality of baffles 201 simultaneously, and then make the better transmission of heat in the flue gas to heat exchange tube 2 on, make heat exchange tube 2 can be with more heat transfer to aquatic.

Further, a plurality of bracing pieces 101 of 1 bottom fixedly connected with of water tank, bracing piece 101 bottom fixedly connected with

base

102, 1 one side fixedly connected with inlet tube 103 of water tank, 1 opposite side fixedly connected with outlet pipe 104 of water tank, inject the water that the temperature is low into 1 inside the water tank through inlet tube 103 to submerge heat exchange tube 2 completely, and the specific heat capacity of water is great, can absorb a large amount of heats, make the heat in the long-time absorption flue gas of hydroenergy.

The support rod 101 is made of stainless steel material, and the stainless steel material has the characteristics of good corrosion resistance and high mechanical strength, so that the support rod 101 can resist external erosion and prevent the support rod 101 from rusting when being used for a long time, and the high mechanical strength can support the weight of the water tank 1 and prevent the support rod 101 from being bent and broken due to overlarge load;

meanwhile, the supporting rod 101 can also be made of an aluminum alloy material which also has good corrosion resistance, external erosion can be resisted while the required load capacity of the supporting rod 101 can be met, for the supporting rod 101, a material with high mechanical strength is selected for manufacturing, the problem that the service life of the supporting rod 101 is short due to the fact that the mechanical strength is too low is avoided, the mechanical strength of the stainless steel material is higher than that of the aluminum alloy material, and therefore the stainless steel material is selected as a manufacturing material of the supporting rod 101.

Further, fixed mounting has temperature-sensing ware 105 on the inner wall of water tank 1 one side, temperature-sensing ware 105's signal output part and the signal receiving terminal signal connection of display screen, then the signal output part through temperature-sensing ware 105 sends the signal receiving terminal of display screen with the temperature data in the water tank 1, make the display screen show the temperature real-time temperature of water in the water tank, then judge whether need to change the water of 1 inside of water tank according to the temperature that shows, avoid the temperature of 1 inside water of water tank too big, lead to the heat absorption speed to descend, cause calorific loss, if need change, discharge water through outlet pipe 104, then pour into the lower water of temperature into again through inlet tube 103.

When the utility model is used, water with low temperature is injected into the water tank 1 through the water inlet pipe 103, the heat exchange pipe 2 is completely submerged, the specific heat capacity of water is large, a large amount of heat can be absorbed, so that water can absorb heat in flue gas for a long time, then high-temperature flue gas after combustion is injected into the heat exchange pipe 2 through the air inlet pipe 202, then the flue gas exchanges heat with the water in the water tank 1 when passing through the heat exchange pipe 2 with a serpentine structure, the heat in the flue gas is conducted into the water, the effect of heat recovery is realized, meanwhile, the contact area between the flue gas and the heat exchange pipe 2 is increased through the baffles 201, so that the heat in the flue gas is better transferred onto the heat exchange pipe 2, so that the heat exchange pipe 2 can transfer more heat into the water, then the flowing of water is facilitated through the through holes 301, and then the aluminum alloy material has extremely high heat conduction performance, so that the fixing plate 3 can conduct heat on the heat exchange tube 2, increase the contact area with water, improve the heat exchange efficiency, then start the blower 401, so that the blower 401 blows out the gas in the equipment box 4, so that the inside of the equipment box 4 generates negative pressure, suck the gas in the heat exchange tube 2 into the equipment box 4, then collect and adsorb the dust particles in the flue gas through the dust bag 501, at the same time adsorb harmful substances in the flue gas through the activated carbon filter screen, avoid excessive dust particles or harmful substances in the discharged flue gas from causing environmental pollution, then when the dust bag 501 needs to be replaced, take out the inserting plate 5 from the equipment box 4 through the slot, then treat the dust impurities accumulated in the dust bag 501, then the treated dust bag 501 is inserted into the equipment box 4 through the inserting plate 5 and the slot, and make the bottom end of the inserting plate 5 inserted into the inserting slot 403, at this time, the rubber pad 404 is elastically deformed by the pressing of the insertion plate 5, so that the insertion groove 403 is completely blocked by the rubber pad 404, the smoke is prevented from flowing out through the gap between the insertion plate 5 and the insertion groove 403, the heat in the smoke can be recovered through the above structure, and the filtering function is realized.

The above is only the preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, without departing from the concept of the present invention, several modifications and improvements can be made, which should also be regarded as the protection scope of the present invention, and these will not affect the effect of the implementation of the present invention and the practicability of the patent.

Claims

1. A flue gas heat energy recovery device of a gas plant is characterized by comprising a water tank, an equipment box and a dust removal component which is arranged in the equipment box and used for filtering impurities in flue gas;

an equipment box is fixedly mounted at the top of the water tank, a fixing plate is fixedly mounted in the water tank, a heat exchange tube with a snake-shaped structure is fixedly mounted in the water tank, and a display screen is fixedly mounted on the front surface of the water tank;

2. The gas plant flue gas heat energy recovery device of claim 1, wherein an insertion groove is formed on the inner wall of the bottom of the equipment box, a rubber pad is arranged inside the insertion groove, and the insertion plate is inserted into the insertion groove through the groove.

3. The gas plant flue gas heat energy recovery device of claim 1, wherein a blower is fixedly installed inside the equipment box, an air outlet is formed in one side of the equipment box, and an activated carbon filter screen is arranged inside the air outlet.

4. The gas plant flue gas heat energy recovery device of claim 1, wherein a plurality of through holes are formed in the surface of the fixing plate, the through holes are uniformly distributed in a rectangular array, and the fixing plate is made of an aluminum alloy material.

5. The gas plant flue gas heat energy recovery device of claim 1, wherein an air inlet pipe is fixedly connected to the bottom of the water tank, the top end of the air inlet pipe is connected with a heat exchange pipe, and one end of the heat exchange pipe, which is far away from the air inlet pipe, penetrates through the water tank and is communicated with the inside of the equipment box.

6. The gas plant flue gas heat energy recovery device of claim 5, wherein the heat exchange tube penetrates through the fixing plate, a plurality of baffles are arranged inside the heat exchange tube, and the plurality of baffles are uniformly distributed in a staggered manner.

7. The gas plant flue gas heat energy recovery device of claim 1, wherein a plurality of support rods are fixedly connected to the bottom of the water tank, a base is fixedly connected to the bottom of the support rods, a water inlet pipe is fixedly connected to one side of the water tank, and a water outlet pipe is fixedly connected to the other side of the water tank.

8. The gas plant flue gas heat energy recovery device of claim 1, wherein a temperature sensor is fixedly mounted on the inner wall of one side of the water tank, and a signal output end of the temperature sensor is in signal connection with a signal receiving end of the display screen.