阅读说明：本技术 撬装锅炉烟气冷却、脱水装置 (Skid-mounted boiler flue gas cooling and dehydrating device ) 是由 陈军 李建东 张东升 赵云献 王贵东 李登平 张勇 杜冬梅 牛占涛 史祥辉 钟小 于 2019-10-29 设计创作，主要内容包括：本发明公开了撬装锅炉烟气冷却、脱水装置,包括：烟气冷却管,所述烟气冷却管具有进端口和出端口；所述烟气冷却管的进端口所处的水平高度低于烟气冷却管出端口所处的水平高度,还包括：前端集烟箱,所述前端集烟箱具有第一进烟口、第一出烟口、第一排水口,其中第一出烟口与烟气冷却管的进端口连接。进一步地,所述第一进烟口所处的位置高于第一出烟口,所述第一出烟口所处的位置高于第一排水口,所述第一进烟口过流截面积大于第一出烟口过流截面积。本发明解决的就是锅炉烟气注入工艺中烟气的初始冷却和脱水问题,使烟气降到能够进行初级压缩的40℃左右。同时,将冷却过程中析出的液态水大部分脱除。(The invention discloses a skid-mounted boiler flue gas cooling and dehydrating device, which comprises: a flue gas cooling tube having an inlet port and an outlet port; the horizontal height that the inlet port of flue gas cooling tube was located is less than the horizontal height that flue gas cooling tube outlet port was located, still includes: the front end smoke collecting box is provided with a first smoke inlet, a first smoke outlet and a first water discharging opening, wherein the first smoke outlet is connected with the inlet of the smoke cooling pipe. Further, the first smoke inlet is higher than the first smoke outlet, the first smoke outlet is higher than the first water discharge port, and the flow cross-sectional area of the first smoke inlet is larger than that of the first smoke outlet. The invention solves the problems of initial cooling and dehydration of the flue gas in the boiler flue gas injection process, and reduces the temperature of the flue gas to about 40 ℃ which can be subjected to primary compression. Meanwhile, most of the liquid water separated out in the cooling process is removed.)

1. Sled dress boiler flue gas cooling, dewatering device includes:

a flue gas cooling tube having an inlet port and an outlet port;

the horizontal height of the inlet port of the flue gas cooling pipe is lower than the horizontal height of the outlet port of the flue gas cooling pipe.

2. The skid-mounted boiler flue gas cooling and dehydrating device of claim 1, further comprising:

the front end smoke collecting box is provided with a first smoke inlet, a first smoke outlet and a first water discharging opening, wherein the first smoke outlet is connected with the inlet of the smoke cooling pipe.

3. The skid-mounted boiler flue gas cooling and dehydrating device of claim 2, wherein the first flue gas inlet is higher than the first flue gas outlet, the first flue gas outlet is higher than the first water discharge port, and the flow cross-sectional area of the first flue gas inlet is larger than that of the first flue gas outlet.

4. The skid-mounted boiler flue gas cooling and dehydrating device of claim 1, 2 or 3, further comprising:

the rear end smoke collecting box is provided with a second smoke inlet and a second smoke outlet, wherein the second smoke inlet is connected with the outlet port of the smoke cooling pipe.

5. The skid-mounted boiler flue gas cooling and dehydrating device of claim 4, wherein the second flue gas outlet is located at a position higher than the second flue gas inlet.

6. The skid-mounted boiler flue gas cooling and dehydrating device of claim 2 or 4, further comprising:

the conical smoke inlet pipe is characterized in that the caliber of the lower end opening of the conical smoke inlet pipe is larger than that of the upper end opening, the lower end opening of the conical smoke inlet pipe is connected with a first smoke inlet of the front-end smoke collection box, and the upper end opening of the conical smoke inlet pipe is connected with a smoke inlet pipe.

7. The skid-mounted boiler flue gas cooling and dehydrating device of claim 2 or 4, further comprising:

the conical smoke outlet pipe is characterized in that the caliber of the lower end opening of the conical smoke outlet pipe is larger than that of the upper end opening, the lower end opening of the conical smoke outlet pipe is connected with a second smoke outlet of the rear-end smoke collection box, and the upper end opening of the conical smoke outlet pipe is connected with a smoke outlet pipe.

8. The skid-mounted boiler flue gas cooling and dehydrating device of claim 2 or 4, further comprising:

and the flue gas cooling pipe is arranged in the circulating water cooling system.

9. The skid-mounted boiler flue gas cooling and dehydrating device of claim 8, wherein the circulating water cooling system comprises:

and the flue gas cooling pipe is completely immersed below the water surface in the cooling water tank.

10. The skid-mounted boiler flue gas cooling and dehydrating device of claim 9, wherein the circulating water cooling system further comprises:

an air-water cooling tower fixed above the water tank;

and the circulating water pump is arranged at the bottom of the inner cavity of the cooling water tank and is connected with a spraying mechanism inside the air-water cooling tower through a pipeline.

11. The flue gas cooling and dehydrating device of the skid-mounted boiler according to claim 9 or 10, wherein the cooling water tank, the front end smoke collection box and the rear end smoke collection box are simultaneously fixed on the base to form a skid-mounted mechanism.

Technical Field

The invention relates to the technical field of steam injection boilers for exploiting thick oil in oil fields, in particular to a skid-mounted boiler flue gas cooling and dehydrating device.

Background

At present, the heavy oil recovery of each large oil field of the oil field preferentially adopts the method that a steam injection boiler generates saturated steam to be injected into a well, the viscosity of the heavy oil is reduced by utilizing the heat of the steam, and the recovery ratio of the heavy oil is improved. In addition, various types of conventional industrial heating furnaces are also used in the oil field in a large quantity in the processes of exploitation, oil transportation and heating. The main fuel of the existing steam injection boiler or the conventional industrial boiler is natural gas, and the flue gas generated by the combustion of the boiler mainly comprises nitrogen, carbon dioxide and water vapor, and also comprises a small amount of oxygen, nitrogen oxide and inert gas. As carbon dioxide and nitrogen oxide belong to pollutants controlled by national environmental protection standards, the emission of boiler flue gas also causes certain air pollution.

Years of experimental research and field application prove that if nitrogen and carbon dioxide are injected into an oil production exploitation area of a bottom oil well, the exploitation efficiency of crude oil can be effectively improved, and the main principle is as follows:

the main mechanism of the carbon dioxide flooding process is as follows:

a) expanding the volume of the crude oil;

b) reducing the viscosity of the crude oil;

c) multilevel miscible flooding;

d) reducing the interfacial tension;

e) vaporizing the intermediate hydrocarbon component of the crude oil;

f) form dissolved gas drive

g) The carbon dioxide and the discharge assistant play a role in profile control and improve the steam huff and puff effect.

Nitrogen enhanced oil recovery principle:

a) maintaining formation pressure and extending throughput cycle

b) Has the functions of drainage assistance and improving the recovery water rate

c) Enlarging the heating zone of oil layer, increasing swept volume, increasing elastic gas drive energy, and reducing interfacial tension

d) The oil sleeve is empty and filled with nitrogen to play a role in heat insulation, reduce heat loss and protect the sleeve

e) Steam and nitrogen are injected and chemical solvent is added, resistance factor is increased, profile control effect is achieved, and steam flooding recovery ratio is improved

Therefore, the characteristic that the boiler flue gas contains a large amount of nitrogen and carbon dioxide is utilized, after oxygen and moisture are removed, the boiler flue gas is injected into the underground to improve the crude oil recovery rate, and the technology becomes a new oil displacement and yield increase technology, and is hereinafter referred to as a boiler flue gas injection technology for short.

In the boiler flue gas injection process, three technical keys are mainly required to be solved:

firstly, the flue gas is cooled

The flue gas is injected into the underground, the flue gas is required to be pressurized step by step until the pressure is increased to the underground bottom layer pressure, generally exceeding 15MPa, a large amount of heat can be emitted in the step-by-step compression process of the flue gas, the flue gas compression energy efficiency is reduced, and the compressor can not work normally due to high temperature, so that the whole flue gas compression process can not be performed normally. Therefore, the temperature of the flue gas which originally reaches 120-140 ℃ needs to be reduced to about 40 ℃ which can be subjected to primary compression.

Second, the flue gas is dehydrated

In the cooling process of the flue gas, when the temperature is lower than 100 ℃, saturated water vapor in the flue gas can be separated out in a solid water mode, and if the water enters a flue gas compressor, the compressor cannot work normally at all.

Thirdly, flue gas pressurization

Generally, the temperature of the flue gas is reduced and the flue gas is dehydrated, and the pressure of the flue gas is gradually increased to the underground bottom layer pressure, which is usually over 15 MPa.

At present, a boiler flue gas injection process is a new oil extraction and yield increase process method and is still in the stages of process research, theory improvement and test experiment. Therefore, the boiler flue gas cooling and dehydrating process method applied to the flue gas injection process has no complete related technical achievement.

Application No.: 201910394083.X, application date: 2019-05-13 discloses a phase-change-based flue gas tail end dehydration fine dust removal device, and relates to the field of atmospheric pollution control. The invention comprises the following steps: the dust removal box body is horizontally arranged, and a phase change cooling area, a spray cooling area and a filter screen dust removal area are sequentially arranged in the dust removal box body from the direction of a flue gas inlet to the direction of a flue gas outlet; the phase change cooling area comprises a plurality of layers of heat pipe heat exchange layers, each layer of heat pipe heat exchange layer comprises a plurality of heat pipes which are arranged in parallel, evaporation sections of the heat pipes are positioned in the dust removal box body, and condensation sections of the heat pipes are positioned outside the dust removal box body; the spray cooling area comprises a plurality of atomizing spray heads; the filter screen dust removal area comprises a plurality of vertically arranged filter screen dust removal units, each filter screen dust removal unit comprises a support frame, and a filter screen is paved on each support frame; and the sedimentation tank is positioned below the opening at the bottom surface of the dedusting box body. Aims to further remove dust from industrial flue gas to achieve near zero emission and eliminate white smoke under the conditions of low cost and low energy consumption.

Application No.: 201520401376.3, filing date: 2015-06-12 belongs to the technical field of desulfurization equipment, and relates to a desulfurization device with a cooling function; the specific technical scheme is as follows: a cooling dehydration device comprises a combustion furnace, a cyclone dust collector, a cooling desulfurization tower and a bag-type dust collector which are sequentially connected, wherein the cooling desulfurization tower comprises a shell, a plurality of sets of purification devices are arranged in the shell, each purification device comprises a rotational flow plate and a spray nozzle arranged above the rotational flow plate, an air outlet of the rotational flow plate is arranged towards a water spray port of the spray nozzle, the rotational flow plates upwards spray vortex-shaped strong wind, the upward wind current is contacted with falling water drops to form water mist, the water mist can absorb dust and heat in flue gas and adsorb particulate matters in the flue gas, a water retaining device is further arranged at the bottom of the cooling desulfurization tower, the upper end of the water retaining device is opened, and a water collecting channel is formed between the outer wall of the water retaining device and the inner wall of the cooling desulfurization, under the effect of water retaining device, rivers can not contact the dust removal pipeline, and steam just also can not get into the sack cleaner, guarantees the steady operation of sack cleaner.

Application No.: 201821366141.5, filing date: 2018-08-23 discloses a plate-type condenser for condensation and dehydration for treating desulfurized flue gas, which divides a heat exchange plate into a flue gas channel and a cooling water channel by a partition plate, so that one side of each heat exchange plate is a flue gas channel, and the other side of each heat exchange plate is a cooling water channel; cooling water for reducing the temperature in the flue gas pipeline is introduced into the cooling water channel, a sprayer is arranged above the water inlet side of the cooling water channel, and the sprayer can spray the cooling water to the two side wall surfaces of the cooling water channel, so that the flue gas meets the water-cooled wall to reduce the temperature; and simultaneously, the pollutants remained in the flue gas are further removed along with the condensed water in the condensation and dehydration process. In addition, the flue gas condensation dehydration can collect a large amount of industrial water, and has great positive significance for saving water while achieving the cooling.

Application No.: 201620966026.6, filing date: 2016-08-29 discloses a condensing type flue gas dehydration purifier, which comprises a case, the lower end of the case is fixedly connected with a lower end cover, the middle part of the upper end surface of the case is provided with an air outlet hole, the air outlet is fixedly connected with a telescopic pipe, the left side of the inner wall of the case is sequentially provided with a cover plate, a third inclined plate and a first inclined plate from top to bottom, the condensing type smoke dehydration purifier can form low pressure in the machine case so as to extract oil smoke, the extracted oil smoke enters from the lower end cover, the hot oil smoke meets the cold inclined plate, the oil gas in the oil smoke can be condensed into liquid, and slides down from the lower surface of the inclined plate and the inner wall of the case, and is provided with an inclined circular plate which is arranged obliquely, liquid oil can enter the groove of the inclined circular plate, and flow to in the outflow pipe along the recess from the rectangular hole, this device is simple and practical, and is clean, and is very environmental protection, is favorable to human health.

Application No.: 201720595278.7, filing date: 2017-05-25A high-efficiency dehydration device for flue gas emission belongs to the technical field of water and gas removal components in flue gas emitted by an incineration boiler, and comprises a tank body, a gas inlet pipe, a gas outlet pipe, a tank body water outlet pipe and a cooling water pipe; the tank body is vertically arranged and comprises a tank body main body in the middle, an upper end part and a lower end part, the tank body main body is a cylindrical body, and the upper end part and the lower end part are conical; the air inlet pipe is arranged on one side of the bottom of the tank body main body, the air outlet pipe is arranged at the upper end part, and the tank body water outlet pipe is arranged at the lower end part; the cooling water pipe is spiral, is arranged in the middle part of the tank body main body and is vertically arranged between the air inlet pipe and the air outlet pipe; the cooling water pipe is made of corrosion-resistant stainless steel materials. The beneficial effects are that: the flue gas does not generate strong corrosion to the flue, can save energy and meet the requirement of environmental protection.

The technical solutions of the above-disclosed technologies, the technical problems to be solved, and the advantageous effects thereof are all different from the present invention, and no technical inspiration exists in the above-disclosed technical documents for more technical features, technical problems to be solved, and advantageous effects thereof.

Disclosure of Invention

The invention aims to provide a skid-mounted boiler flue gas cooling and dehydrating device, which solves the problems of initial cooling and dehydration of flue gas in a boiler flue gas injection process, so that the flue gas at an outlet of a boiler chimney of 120-140 ℃ is cooled to about 80 ℃ in a preceding stage, and is cooled again on the device so that the flue gas is cooled to about 40 ℃ capable of being subjected to primary compression. Meanwhile, most of the liquid water separated out in the cooling process is removed. Creating conditions for further flue gas dehydration, dust removal, temperature reduction and compression in the next step.

In order to achieve the purpose, the invention adopts the following technical scheme that the skid-mounted boiler flue gas cooling and dehydrating device comprises:

a flue gas cooling tube having an inlet port and an outlet port;

the horizontal height of the inlet port of the flue gas cooling pipe is lower than the horizontal height of the outlet port of the flue gas cooling pipe.

Further, still include: .

The front end smoke collecting box is provided with a first smoke inlet, a first smoke outlet and a first water discharging opening, wherein the first smoke outlet is connected with the inlet of the smoke cooling pipe.

Further, the first smoke inlet is higher than the first smoke outlet, the first smoke outlet is higher than the first water discharge port, and the flow cross-sectional area of the first smoke inlet is larger than that of the first smoke outlet.

Further, still include:

the rear end smoke collecting box is provided with a second smoke inlet and a second smoke outlet, wherein the second smoke inlet is connected with the outlet port of the smoke cooling pipe.

Further, the second smoke outlet is located at a position higher than the second smoke inlet.

Further, still include:

the conical smoke inlet pipe is characterized in that the caliber of the lower end opening of the conical smoke inlet pipe is larger than that of the upper end opening, the lower end opening of the conical smoke inlet pipe is connected with a first smoke inlet of the front-end smoke collection box, and the upper end opening of the conical smoke inlet pipe is connected with a smoke inlet pipe.

Further, still include:

the conical smoke outlet pipe is characterized in that the caliber of the lower end opening of the conical smoke outlet pipe is larger than that of the upper end opening, the lower end opening of the conical smoke outlet pipe is connected with a second smoke outlet of the rear-end smoke collection box, and the upper end opening of the conical smoke outlet pipe is connected with a smoke outlet pipe.

Further, still include:

and the flue gas cooling pipe is arranged in the circulating water cooling system.

Further, the circulating water cooling system includes:

and the flue gas cooling pipe is completely immersed below the water surface in the cooling water tank.

Further, the circulating water cooling system further comprises:

an air-water cooling tower fixed above the water tank;

and the circulating water pump is arranged at the bottom of the inner cavity of the cooling water tank and is connected with a spraying mechanism inside the air-water cooling tower through a pipeline.

Furthermore, the cooling water tank, the front end smoke collecting box and the rear end smoke collecting box are simultaneously fixed on the base to form a skid-mounted mechanism.

Compared with the prior art, the invention has the following beneficial effects:

1. the device is a skid-mounted whole body, and is convenient to transport/transfer by vehicles and install in place on site. The 2 to 14 components of the device are all mounted on the base 1 to form a skid-mounted whole, which is convenient for transportation/transfer by vehicle and installation on site.

2. The process mode is that the preceding-stage liquid condensate is separated in the front-end smoke collecting box and the condensate generated by the smoke cooling pipe flows back to the front-end smoke collecting box to be collected. When flowing through the flue gas cooling pipe 3, the flue gas exchanges heat with the circulating cooling water 10 in the cooling water tank 7, so that the temperature of the flue gas is reduced to about 40 ℃ which can be subjected to primary compression. The smoke cooling pipe 3 adopts a structure that the smoke inlet end is high and the smoke outlet end is low, so that the flow resistance is reduced when smoke flows through the smoke cooling pipe 3. Meanwhile, when the flue gas flows through the flue gas cooling pipe 3, the solubility of saturated steam in the flue gas can be further reduced along with the reduction of the temperature, further more liquid water is separated out from the flue gas cooling pipe 3, and due to the inclined arrangement of the flue gas cooling pipe 3, the generated cooling water flows back to the front end smoke collection box 4 and is converged into the flue gas condensate water 2, and when the flue gas condensate water 2 reaches a certain liquid level, the flue gas condensate water can enter a boiler water system to be utilized from the outside of a discharge device.

3. The whole process of smoke circulation, temperature reduction and heat exchange and circulating cooling water circulation cooling through the air-water cooling tower. After the flue gas carries out the heat transfer through the recirculated cooling water 10 in flue gas cooling tube 3 and the coolant tank 7, recirculated cooling water 10 temperature can rise, and at this moment, circulating water pump 14 carries recirculated cooling water 10 to air-water cooling tower 8 through circulating water pipeline 9 and carries out forced cooling with water to make recirculated cooling water 10 remain throughout and be less than ambient temperature about 2 ℃, thereby guarantee the cooling heat transfer effect of boiler flue gas.

Drawings

FIG. 1 is a schematic structural diagram of a skid-mounted boiler flue gas cooling and dehydrating device of the invention.

In the figure: the device comprises a base 1, flue gas condensate water 2, a flue gas cooling pipe 3, a front end smoke collection box 4, a conical smoke inlet pipe 5, a flue gas inlet pipe 6, a cooling water tank 7, an air-water cooling tower 8, a circulating water pipeline 9, circulating cooling water 10, a flue gas outlet pipe 11, a conical smoke outlet pipe 12, a rear end smoke collection box 13 and a circulating water pump 14.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

Example 1:

referring to fig. 1, the present invention provides a technical solution: sled dress boiler flue gas cooling, dewatering device includes:

a flue gas cooling tube 3 having an inlet port and an outlet port;

the horizontal height of the inlet port of the flue gas cooling pipe is lower than the horizontal height of the outlet port of the flue gas cooling pipe.

Further, still include: .

Front end collection smoke box 4, front end collection smoke box has first inlet, first outlet, first drainage port, and wherein first outlet is connected with the inlet of flue gas cooling pipe.

Further, the first smoke inlet is higher than the first smoke outlet, the first smoke outlet is higher than the first water discharge port, and the flow cross-sectional area of the first smoke inlet is larger than that of the first smoke outlet.

Further, still include:

and a rear-end smoke collection box 13, which is provided with a second smoke inlet and a second smoke outlet, wherein the second smoke inlet is connected with the outlet of the smoke cooling pipe.

Further, the second smoke outlet is located at a position higher than the second smoke inlet.

Further, still include:

the conical smoke inlet pipe 5 is characterized in that the caliber of the lower end opening of the conical smoke inlet pipe is larger than that of the upper end opening, the lower end opening of the conical smoke inlet pipe is connected with a first smoke inlet of the front-end smoke collection box, and the upper end opening of the conical smoke inlet pipe is connected with a smoke inlet pipe 6.

Further, still include:

the conical smoke outlet pipe 12 is characterized in that the caliber of the lower end opening of the conical smoke outlet pipe is larger than that of the upper end opening, the lower end opening of the conical smoke outlet pipe is connected with a second smoke outlet of the rear-end smoke collection box, and the upper end opening of the conical smoke outlet pipe is connected with the smoke outlet pipe 11.

Further, still include:

and the flue gas cooling pipe is arranged in the circulating water cooling system.

Further, the circulating water cooling system includes:

and the cooling water tank 7 is used for completely immersing the flue gas cooling pipe below the water surface in the cooling water tank.

Further, the circulating water cooling system further comprises:

an air-water cooling tower 8 fixed above the water tank;

and the circulating water pump 14 is arranged at the bottom of the inner cavity of the cooling water tank and is connected with a spraying mechanism inside the air-water cooling tower through a circulating water pipeline 9.

Furthermore, the cooling water tank, the front end smoke collecting box and the rear end smoke collecting box are simultaneously fixed on the base 1 to form a skid-mounted mechanism.

The skid-mounted boiler flue gas cooling and dehydrating device has the working process that:

flue gas circulation system:

high-temperature flue gas from a boiler at about 80 ℃ enters a front-end flue gas collection box 4 through a flue gas inlet pipe 6 and a conical flue gas inlet pipe 5, and the volume of the front-end flue gas collection box 4 is large, so that the flow velocity of the flue gas is slowed down, and the flue gas has certain retention time, so that liquid water separated out after the flue gas at an outlet of a boiler chimney at 120 plus 140 ℃ is cooled to about 80 ℃ in a preceding stage is settled and separated. The water separated by sedimentation falls into a smoke collection box 4 to form smoke condensed water 2.

The flue gas enters the flue gas cooling pipe 3 through the front end flue gas collecting box 4, flows through the flue gas cooling pipe 3 and enters the rear end flue gas collecting box 13, and then enters the next stage of dehydration, dust removal and compression device through the conical smoke outlet pipe 12 and the flue gas outlet pipe 11.

When flowing through the flue gas cooling pipe 3, the flue gas exchanges heat with the circulating cooling water 10 in the cooling water tank 7, so that the temperature of the flue gas is reduced to about 40 ℃ which can be subjected to primary compression. The smoke cooling pipe 3 adopts a structure that the smoke inlet end is low and the smoke outlet end is high, so that the flow resistance is reduced when smoke flows through the smoke cooling pipe 3. Meanwhile, when the flue gas flows through the flue gas cooling pipe 3, the solubility of saturated steam in the flue gas can be further reduced along with the reduction of the temperature, further more liquid water is separated out from the flue gas cooling pipe 3, and due to the inclined arrangement of the flue gas cooling pipe 3, the generated cooling water flows back to the front end smoke collection box 4 and is converged into the flue gas condensate water 2, and when the flue gas condensate water 2 reaches a certain liquid level, the flue gas condensate water can enter a boiler water system to be utilized from the outside of a discharge device.

Circulating water cooling system:

after the flue gas carries out the heat transfer through the recirculated cooling water 10 in flue gas cooling tube 3 and the coolant tank 7, recirculated cooling water 10 temperature can rise, and at this moment, circulating water pump 14 carries recirculated cooling water 10 to air-water cooling tower 8 through circulating water pipeline 9 and carries out forced cooling with water to make recirculated cooling water 10 remain throughout and be less than ambient temperature about 2 ℃, thereby guarantee the cooling heat transfer effect of boiler flue gas.

The 2 to 14 components of the device are all mounted on the base 1 to form a skid-mounted whole, which is convenient for transportation/transfer by vehicle and installation on site.

Example 2:

referring to fig. 1, the present invention provides a technical solution: sled dress boiler flue gas cooling, dewatering device includes:

a flue gas cooling tube 3 having an inlet port and an outlet port;

the horizontal height of the inlet port of the flue gas cooling pipe is lower than the horizontal height of the outlet port of the flue gas cooling pipe.

Further, still include: .

Front end collection smoke box 4, front end collection smoke box has first inlet, first outlet, first drainage port, and wherein first outlet is connected with the inlet of flue gas cooling pipe.

Further, the first smoke inlet is higher than the first smoke outlet, the first smoke outlet is higher than the first water discharge port, and the flow cross-sectional area of the first smoke inlet is larger than that of the first smoke outlet.

Further, still include:

and a rear-end smoke collection box 13, which is provided with a second smoke inlet and a second smoke outlet, wherein the second smoke inlet is connected with the outlet of the smoke cooling pipe.

Further, the second smoke outlet is located at a position higher than the second smoke inlet.

Further, still include:

the conical smoke inlet pipe 5 is characterized in that the caliber of the lower end opening of the conical smoke inlet pipe is larger than that of the upper end opening, the lower end opening of the conical smoke inlet pipe is connected with a first smoke inlet of the front-end smoke collection box, and the upper end opening of the conical smoke inlet pipe is connected with a smoke inlet pipe 6.

Further, still include:

the conical smoke outlet pipe 12 is characterized in that the caliber of the lower end opening of the conical smoke outlet pipe is larger than that of the upper end opening, the lower end opening of the conical smoke outlet pipe is connected with a second smoke outlet of the rear-end smoke collection box, and the upper end opening of the conical smoke outlet pipe is connected with the smoke outlet pipe 11.

Further, still include:

and the flue gas cooling pipe is arranged in the circulating water cooling system.

Further, the circulating water cooling system includes:

and the cooling water tank 7 is used for completely immersing the flue gas cooling pipe below the water surface in the cooling water tank.

Further, the circulating water cooling system further comprises:

an air-water cooling tower 8 fixed above the water tank;

and the circulating water pump 14 is arranged at the bottom of the inner cavity of the cooling water tank and is connected with a spraying mechanism inside the air-water cooling tower through a circulating water pipeline 9.

Example 3:

referring to fig. 1, the present invention provides a technical solution: sled dress boiler flue gas cooling, dewatering device includes:

a flue gas cooling tube 3 having an inlet port and an outlet port;

the horizontal height of the inlet port of the flue gas cooling pipe is lower than the horizontal height of the outlet port of the flue gas cooling pipe.

Further, still include: .

Front end collection smoke box 4, front end collection smoke box has first inlet, first outlet, first drainage port, and wherein first outlet is connected with the inlet of flue gas cooling pipe.

Further, the first smoke inlet is higher than the first smoke outlet, the first smoke outlet is higher than the first water discharge port, and the flow cross-sectional area of the first smoke inlet is larger than that of the first smoke outlet.

Further, still include:

and a rear-end smoke collection box 13, which is provided with a second smoke inlet and a second smoke outlet, wherein the second smoke inlet is connected with the outlet of the smoke cooling pipe.

Further, the second smoke outlet is located at a position higher than the second smoke inlet.

Further, still include:

the conical smoke inlet pipe 5 is characterized in that the caliber of the lower end opening of the conical smoke inlet pipe is larger than that of the upper end opening, the lower end opening of the conical smoke inlet pipe is connected with a first smoke inlet of the front-end smoke collection box, and the upper end opening of the conical smoke inlet pipe is connected with a smoke inlet pipe 6.

Further, still include:

the conical smoke outlet pipe 12 is characterized in that the caliber of the lower end opening of the conical smoke outlet pipe is larger than that of the upper end opening, the lower end opening of the conical smoke outlet pipe is connected with a second smoke outlet of the rear-end smoke collection box, and the upper end opening of the conical smoke outlet pipe is connected with the smoke outlet pipe 11.

Further, still include:

and the flue gas cooling pipe is arranged in the circulating water cooling system.

Further, the circulating water cooling system includes:

and the cooling water tank 7 is used for completely immersing the flue gas cooling pipe below the water surface in the cooling water tank.

Example 4:

referring to fig. 1, the present invention provides a technical solution: sled dress boiler flue gas cooling, dewatering device includes:

a flue gas cooling tube 3 having an inlet port and an outlet port;

the horizontal height of the inlet port of the flue gas cooling pipe is lower than the horizontal height of the outlet port of the flue gas cooling pipe.

Further, still include: .

Front end collection smoke box 4, front end collection smoke box has first inlet, first outlet, first drainage port, and wherein first outlet is connected with the inlet of flue gas cooling pipe.

Further, the first smoke inlet is higher than the first smoke outlet, the first smoke outlet is higher than the first water discharge port, and the flow cross-sectional area of the first smoke inlet is larger than that of the first smoke outlet.

Further, still include:

and a rear-end smoke collection box 13, which is provided with a second smoke inlet and a second smoke outlet, wherein the second smoke inlet is connected with the outlet of the smoke cooling pipe.

Further, the second smoke outlet is located at a position higher than the second smoke inlet.

Further, still include:

the conical smoke inlet pipe 5 is characterized in that the caliber of the lower end opening of the conical smoke inlet pipe is larger than that of the upper end opening, the lower end opening of the conical smoke inlet pipe is connected with a first smoke inlet of the front-end smoke collection box, and the upper end opening of the conical smoke inlet pipe is connected with a smoke inlet pipe 6.

Further, still include:

the conical smoke outlet pipe 12 is characterized in that the caliber of the lower end opening of the conical smoke outlet pipe is larger than that of the upper end opening, the lower end opening of the conical smoke outlet pipe is connected with a second smoke outlet of the rear-end smoke collection box, and the upper end opening of the conical smoke outlet pipe is connected with the smoke outlet pipe 11.

Further, still include:

and the flue gas cooling pipe is arranged in the circulating water cooling system.

Example 5:

referring to fig. 1, the present invention provides a technical solution: sled dress boiler flue gas cooling, dewatering device includes:

a flue gas cooling tube 3 having an inlet port and an outlet port;

the horizontal height of the inlet port of the flue gas cooling pipe is lower than the horizontal height of the outlet port of the flue gas cooling pipe.

Further, still include: .

Front end collection smoke box 4, front end collection smoke box has first inlet, first outlet, first drainage port, and wherein first outlet is connected with the inlet of flue gas cooling pipe.

Further, the first smoke inlet is higher than the first smoke outlet, the first smoke outlet is higher than the first water discharge port, and the flow cross-sectional area of the first smoke inlet is larger than that of the first smoke outlet.

Further, still include:

and a rear-end smoke collection box 13, which is provided with a second smoke inlet and a second smoke outlet, wherein the second smoke inlet is connected with the outlet of the smoke cooling pipe.

Further, the second smoke outlet is located at a position higher than the second smoke inlet.

Further, still include:

the conical smoke inlet pipe 5 is characterized in that the caliber of the lower end opening of the conical smoke inlet pipe is larger than that of the upper end opening, the lower end opening of the conical smoke inlet pipe is connected with a first smoke inlet of the front-end smoke collection box, and the upper end opening of the conical smoke inlet pipe is connected with a smoke inlet pipe 6.

Further, still include:

the conical smoke outlet pipe 12 is characterized in that the caliber of the lower end opening of the conical smoke outlet pipe is larger than that of the upper end opening, the lower end opening of the conical smoke outlet pipe is connected with a second smoke outlet of the rear-end smoke collection box, and the upper end opening of the conical smoke outlet pipe is connected with the smoke outlet pipe 11.

Example 6:

referring to fig. 1, the present invention provides a technical solution: sled dress boiler flue gas cooling, dewatering device includes:

a flue gas cooling tube 3 having an inlet port and an outlet port;

the horizontal height of the inlet port of the flue gas cooling pipe is lower than the horizontal height of the outlet port of the flue gas cooling pipe.

Further, still include: .

Front end collection smoke box 4, front end collection smoke box has first inlet, first outlet, first drainage port, and wherein first outlet is connected with the inlet of flue gas cooling pipe.

Further, the first smoke inlet is higher than the first smoke outlet, the first smoke outlet is higher than the first water discharge port, and the flow cross-sectional area of the first smoke inlet is larger than that of the first smoke outlet.

Further, still include:

and a rear-end smoke collection box 13, which is provided with a second smoke inlet and a second smoke outlet, wherein the second smoke inlet is connected with the outlet of the smoke cooling pipe.

Further, the second smoke outlet is located at a position higher than the second smoke inlet.

Although fig. 1 is used for all the above embodiments, it is obvious to those skilled in the art that a separate drawing is not shown as long as the parts or structural features missing in the embodiments are removed from the drawing. As will be clear to the skilled person. Of course, the embodiments with more components are only the best embodiments, and the embodiments with less components are the basic embodiments, but the basic objects of the invention can also be achieved, so all of them are within the protection scope of the invention.

All parts which are not discussed in the application belong to the known technology in the technical field, and can be directly purchased and connected for use. Such as an air-water cooled tower.

Other connecting details are also known in the art, for example, the fixing mode can be bolts, or the connecting details can be directly welded, for example, a cooling pipe enters a water tank, and a side wall hole needs to be formed in the water tank and the water tank is sealed, which are known in the art and are not described again.

In the present invention, the term "plurality" means two or more unless explicitly defined otherwise. The terms "mounted," "connected," "fixed," and the like are to be construed broadly, and for example, "connected" may be a fixed connection, a removable connection, or an integral connection; "coupled" may be direct or indirect through an intermediary. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.

In the description of the present invention, it is to be understood that the terms "upper", "lower", "left", "right", "front", "rear", and the like indicate orientations or positional relationships based on those shown in the drawings, and are only for convenience of description and simplification of description, but do not indicate or imply that the referred device or unit must have a specific direction, be constructed in a specific orientation, and be operated, and thus, should not be construed as limiting the present invention.

In the description herein, the description of the terms "one embodiment," "some embodiments," "specific embodiments," etc., means that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, the schematic representations of the terms used above do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.