A kind of gasification deaerator vent steam recovery device

Abstract

The application discloses a kind of gasification deaerator venting steam recovery device, it is related to the field of deaerator, including tank body, the tank body is provided with a plurality of partition, the tank body is sealed and is provided with water injection chamber, and steam chamber is located in the bottom of water injection chamber, the tank body is provided with permeation cylinder, a plurality of through holes are inclined and arranged on the permeation cylinder, the top of the permeation cylinder is rotatably installed with impeller, and the bottom end of impeller is connected with water disc, the tank body is installed with packing layer.The application is injected into steam chamber under the action of first steam port, so that cooling water is mixed with steam and heated, and the water source flowing out of the permeation cylinder is evenly dispersed on the top of the packing layer by the water disc, and the non-condensable gas after being deoxidized by steam and the packing layer flows into the sealing cylinder under the action of exhaust fan blades, which can prevent the non-condensable gas from contacting the cooling water to be deoxidized again during the process, effectively improving the overall deoxidizing effect.

Description

TECHNICAL FIELD

[0001] The present application relates to the field of deaerator, in particular to a gasification deaerator venting steam recovery device. BACKGROUND

[0002] In the production process of industrial enterprises and power enterprises with boilers, the deaeration mode of boiler feed water usually adopts thermal deaeration mode to ensure the quality of feed water. According to the measurement and calculation, in the normal operation condition of a 100-ton atmospheric deaerator, when the water temperature in the deaerator reaches 104 DEG C and the pressure in the deaerator reaches 0.02 MPa or more, the steam quantity discharged to the atmosphere per hour reaches 0.5-0.7 tons. However, the steam generated by the deaerator is generally directly discharged to the atmosphere, which not only increases the atmospheric discharge quantity, but also causes thermal pollution to the environment.

[0003] The Chinese patent with publication number CN101666487 B provides a deaerator exhaust recovery device. Cold desalted water is injected into the cold water inlet at the upper part of the packing tower shell, the steam discharged from the deaerator is introduced into the lower part of the packing tower shell, the cold desalted water enters the packing tower from the cold water inlet at the upper part of the packing tower shell, the cold desalted water is heated by the entered steam during the falling process through the upper packing layer and the lower packing layer, and finally flows out from the hot water outlet. Non-condensable gas is discharged into the atmosphere from the exhaust port at the top of the packing tower shell. The hot desalted water flowing out from the hot water outlet is sent back into the packing tower shell through the circulating hot water inlet after being pressurized by a water pump to continue to absorb the heat of the steam.

[0004] In summary, in the actual use process of the above structure, the cooling water is directly discharged to the packing layer by gravity. In the process of deoxygenation of the steam, there is no cooling water in some positions of the packing layer. Since the cooling water stays on the packing layer for a short time, it will not penetrate and spread on the packing layer, thereby causing a large amount of steam waste, making it difficult to recycle the excess steam, increasing the overall deoxygenation cost, and causing the non-condensable gas to contact the cooling water to be deoxygenated again during the upward floating process of the steam, thereby reducing the overall deoxygenation effect of the device. SUMMARY

[0005] Therefore, the purpose of the present application is to provide a gasification deaerator venting steam recovery device to solve the technical problem of waste of a large amount of steam and the non-condensable gas being discharged upward and contacting the cooling water to be deoxygenated again, thereby reducing the overall deoxygenation effect of the device.

[0006] In order to achieve the above object, the present application provides the following technical scheme: a kind of gasification deaerator venting steam recovery device, including tank body, a plurality of partitions are arranged in the tank body, water injection chamber is sealingly arranged between the partition in the tank body, and steam chamber is sealingly arranged at the bottom of water injection chamber, permeation cylinder is arranged in the tank body at water injection chamber, a plurality of through holes are obliquely arranged on the permeation cylinder, and steam chamber is penetrated at the bottom end of permeation cylinder, impeller is rotatably installed at the top of permeation cylinder, and water disc is connected at the bottom end of impeller, packing layer is installed in the tank body, and around wheel is rotatably arranged at the bottom of packing layer, sealing cylinder is installed at the top of packing layer in the tank body, and both ends of sealing cylinder are penetrated through partition, and exhaust fan blade that cooperates with around wheel is rotatably arranged in the sealing cylinder.

[0007] By adopting the above technical scheme, cooling water flows into the permeation cylinder through the through hole, and steam is injected into the steam chamber under the action of the first steam port, so that the cooling water is mixed and heated with the steam, and the water disc sprays the water source flowing out of the permeation cylinder to the surrounding, so that the cooling water forms a water film skirt under the action of the water disc and is uniformly dispersed on the top of the packing layer. The non-condensable gas after being deoxygenated by steam and packing layer flows into the sealing cylinder under the action of the exhaust fan blade. In this process, the non-condensable gas and the cooling water to be deoxygenated are prevented from being contacted again, and the overall deoxygenation effect is effectively improved.

[0008] The present application further provides that a waste heat cavity is arranged at the top of the partition in the tank body, and a spiral flow channel is arranged in the interlayer of the tank body at the water injection chamber. One end of the spiral flow channel penetrates into the waste heat cavity, and the other end penetrates the tank body.

[0009] By adopting the above technical scheme, the steam carrying non-condensable gas is discharged into the waste heat cavity under the action of the sealing cylinder. In this process, the steam flows to the interlayer of the tank body through the spiral flow channel of the waste heat cavity, and then the non-condensable gas is discharged from the tank body. In this way, the waste heat of the steam is reused, and the cooling water in the water injection chamber is effectively preheated, thereby reducing the subsequent heating cost.

[0010] The present application further provides that a plurality of water injection ports and first steam inlet ports are arranged on the outer wall of the tank body at the water injection chamber and the steam chamber, respectively, and a second steam inlet port is arranged on the outer wall of the tank body at the around wheel.

[0011] By adopting the above technical scheme, the cooling water to be deoxygenated is easily discharged into the water injection chamber under the action of the water injection port, and the first steam inlet port and the second steam inlet port discharge steam into the steam chamber and the bottom of the pipe body, respectively.

[0012] The top of the water throwing disc is concave, and the end face of the outer wall is arc-shaped.

[0013] By adopting the above technical scheme, when the heated water source is discharged to the bottom through the permeation cylinder, part of the water source will first stay in the concave part at the top of the water throwing disc, and then spread around through the arc-shaped end face when the water throwing disc rotates, thereby forming a water film skirt during the rotation of the water throwing disc, and further improving the diffusion effect of the water source under the action of the water throwing disc.

[0014] The bottom of the water throwing disc is provided with a gas collecting chamber, and a piston is slidingly arranged at the bottom of the gas collecting chamber, the top of the piston is elastically connected with a piston rod, and the piston rod is slidingly arranged on one side, and a special-shaped rotating groove is formed in the permeation cylinder at the position of the sliding rod.

[0015] By adopting the above technical scheme, part of the steam carrying non-condensable gas will stay in the gas collecting chamber, preventing it from being discharged into the permeation cylinder, further improving the overall deoxidization effect, and a piston is slidingly arranged at the top of the water throwing disc, and the piston rod is driven to move up and down by the sliding rod during the rotation of the water throwing disc, thereby realizing the discharge of non-condensable gas in the gas collecting chamber, facilitating the absorption of the exhaust fan, and effectively preventing the non-condensable gas in the gas collecting chamber from being dispersed too much.

[0016] The water inlet and the second steam inlet are eccentrically arranged at the impeller and the runner, respectively.

[0017] By adopting the above technical scheme, the eccentric arrangement facilitates the water inlet and the second steam inlet to enter the water source and steam, which can drive the impeller and the runner to rotate quickly, ensuring that the impeller and the runner always rotate in one direction during operation.

[0018] The second steam inlet is arranged in an inclined downward manner, and the outer wall of the runner is arranged in an inclined upward manner.

[0019] By adopting the above technical scheme, the inclined downward arrangement effectively prevents the water passing through the filler layer from seeping into the second steam inlet, ensuring the stable operation of the second steam inlet, and the inclined arrangement of the runner facilitates the diffusion of steam at the second steam inlet, and under the action of the runner, the steam can flow upward when the steam is discharged downward at the second steam inlet, accelerating the flow speed of the steam and improving the deoxidization effect on the cooling water.

[0020] The bottom end of the sealing cylinder is located at the upper part of the permeation cylinder, and the lowest end of the sealing cylinder is arranged in an open manner.

[0021] By adopting the above technical scheme, in the process of rotating the water disc, water can be prevented from being thrown on the sealing cylinder, the top of the filler layer is distributed with water, the diffusion effect of water on the filler layer is effectively ensured, the waste of steam is further reduced, and the open setting facilitates improving the absorption effect of the exhaust fan blade on the non-condensable gas.

[0022] The application is further provided with an arc-shaped setting of the sliding rod and one end of the piston rod.

[0023] By adopting the above technical scheme, the arc-shaped setting facilitates stably extruding the top of the piston rod in the process of sliding the sliding rod, preventing the two from being stuck in the process of sliding.

[0024] In summary, the application mainly has the following beneficial effects:

[0025] 1. The application is provided with a water injection chamber and a steam chamber in the tank body, cooling water to be deoxygenated is injected into the water injection chamber through the water injection port, and under the action of water pressure, the impeller at the top of the permeation cylinder is driven to rotate, in this process, the cooling water flows into the permeation cylinder through the through hole, and steam is injected into the steam chamber under the action of the first steam port, so that the cooling water and the steam are mixed and heated, and the bottom end of the impeller is connected with the water disc at the bottom of the permeation cylinder, the top of the water disc is arc-shaped, in this process, the water disc sprays the water flowing out of the permeation cylinder to the surrounding, so that the cooling water forms a water film skirt under the action of the water disc and is evenly distributed on the top of the filler layer, when the steam at the second steam inlet port drifts upward, the cooling water and the steam can be fully contacted, effectively reducing the waste of steam.

[0026] 2. The application is provided with a sealing cylinder in the tank body, and an exhaust fan blade is rotatably arranged in the sealing cylinder, when steam is injected into the tank body through the second steam inlet port, the bottom around wheel is driven to rotate, in this process, the steam is evenly distributed at the bottom of the tank body, so that it is effectively contacted with the filler layer, and in the process of rotating the around wheel, the exhaust fan blade is driven to rotate, the non-condensable gas after being deoxygenated by the steam and the filler layer flows into the sealing cylinder under the action of the exhaust fan blade, in this process, the non-condensable gas can be prevented from being contacted with the cooling water to be deoxygenated, effectively improving the overall deoxygenation effect, and the steam carrying the non-condensable gas is discharged into the residual heat cavity at the top, preheats the cooling water in the water injection chamber under the action of the spiral flow channel, and then discharges it, realizing the recycling of the steam.

[0027] 3、The present application sets the gas collecting chamber in the bottom of the water throwing disc, the partial steam carrying non-condensable gas stays in the gas collecting chamber, prevents it from discharging to the inside of the permeation cylinder, further improves the overall oxygen removal effect, and the piston is slidably arranged in the top of the water throwing disc, the piston rod is driven to move up and down through the sliding rod in the process of the rotation of the water throwing disc, so that the piston discharges the non-condensable gas in the gas collecting chamber outward, the exhaust fan blade is convenient to absorb, and the situation that the non-condensable gas in the gas collecting chamber is too much and scatters is effectively prevented. BRIEF DESCRIPTION OF DRAWINGS

[0028] Figure 1 It is a perspective view of the present application;

[0029] Figure 2 It is an internal view of the present application;

[0030] Figure 3 It is a sectional view of the present application;

[0031] Figure 4 It is a permeation cylinder structure schematic view of the present application;

[0032] Figure 5 It is a front view of the present application;

[0033] Figure 6 It is an enlarged view of A in the present application; Figure 3

[0034] Figure 7 It is an enlarged view of B in the present application; Figure 3

[0035] Figure 8 It is a partial sectional view of the second embodiment of the present application;

[0036] Figure 9 It is a partial top view of the second embodiment of the present application.

[0037] In the figure: 1, tank body; 2, first steam inlet; 3, second steam inlet; 4, water injection port; 5, permeation cylinder; 6, sealing cylinder; 7, water throwing disc; 8, filler layer; 9, winding wheel; 10, transmission shaft; 11, partition plate; 12, through hole; 13, impeller; 14, waste heat cavity; 15, water injection chamber; 16, steam chamber; 17, spiral flow channel; 18, exhaust fan blade; 19, special-shaped rotating groove; 20, piston; 21, sliding rod; 22, piston rod; 23, gas collecting chamber. DETAILED DESCRIPTION

[0038] The technical solutions in the embodiments of the present application will be described clearly and completely below by combining the drawings in the embodiments of the present application. The embodiments described below by referring to the drawings are exemplary and are only used for explaining the present application, and cannot be understood as a limitation to the present application.​​

[0039] The following will be described according to the overall structure of the present application, and its embodiments.

[0040] Embodiment one

[0041] A kind of gasification deaerator vent steam recovery device, as shown in Figures 1-7 Including tank body 1, baffle 11, sealing mechanism, diffusion mechanism and heating mechanism, three groups of baffle 11 are arranged in the inside of tank body 1, the top of tank body 1 is located in the top of the waste heat cavity 14, while the bottom of waste heat cavity 14 is located between two groups of baffle and is provided with water injection chamber 15, steam chamber 16 is opened in the bottom of water injection chamber 15, a plurality of water injection openings 4 and first steam inlet 2 are respectively provided on the outer wall of tank body 1 at water injection chamber 15 and steam chamber 16, under the action of water injection opening 4, it is convenient to discharge the cooling water to be deoxidized into water injection chamber 15, since the permeation cylinder 5 is arranged in the water injection chamber 15 in the tank body 1, a plurality of through holes 12 are arranged on the permeation cylinder 5, and steam chamber 16 is penetrated at the bottom end of permeation cylinder 5, in the process of cooling water injection, the water pressure of cooling water itself can drive the impeller 13 at the top of permeation cylinder 5 to rotate, and the first steam inlet 2 also injects steam into the steam chamber 16, in this process, steam is mixed with cooling water to heat;

[0042] And the bottom end of impeller 13 is connected with water disc 7, in the process of rapid rotation of impeller 13, the water source flowing out of permeation cylinder 5 is dispersed to the surrounding and evenly dispersed on the top of filler layer 8 under the action of water disc 7, filler layer 8 is installed in tank body 1, and around wheel 9 is rotatably arranged at the bottom of filler layer 8, and second steam inlet 3 is opened on the outer wall of tank body 1 at around wheel 9, steam is introduced into tank body 1 through second steam inlet 3, when steam drifts upward, the cooling water on the filler layer 8 can be fully contacted with steam, which effectively reduces the waste of steam, and the introduced steam can drive around wheel 9 to rotate, sealing cylinder 6 is installed at the top of filler layer 8 in tank body 1, both ends of sealing cylinder 6 penetrate baffle 11, one end is located in waste heat cavity 14, and exhaust fan blade 18 cooperating with around wheel 9 is rotatably arranged in sealing cylinder 6, transmission shaft 10 is arranged at the bottom of exhaust fan blade 18, and the other end of transmission shaft 10 is connected with around wheel 9 penetrating filler layer 8, in the process of rotation of around wheel 9, exhaust fan blade 18 is driven to rotate, after the deoxidation of steam and filler layer 8, the non-condensable gas flows into sealing cylinder 6 under the action of exhaust fan blade 18, which can prevent the non-condensable gas from contacting the cooling water to be deoxidized again, and effectively improves the overall deoxidation effect.

[0043] Please refer to Figure 3 And Figure 6Wherein the top of the partition 11 in the tank body 1 is provided with a residual heat cavity 14, the interlayer of the tank body 1 is provided with a spiral flow channel 17 at the water injection chamber 15, which penetrates into the residual heat cavity 14 at one end and penetrates the tank body 1 at the other end, and under the action of the sealing cylinder 6, the steam carrying non-condensable gas is discharged into the residual heat cavity 14, and the sealing cylinder 6 itself is in the water injection chamber 15, during the rotation of the impeller 13 by water pressure, the sealing cylinder 6 itself can be used to preheat the cooling water in the water injection chamber 15, and the steam flows through the spiral flow channel 17 of the residual heat cavity 14 to the interlayer of the tank body 1, and then discharges the non-condensable gas from the tank body 1, thereby realizing the secondary utilization of the residual heat of the steam, effectively preheating the cooling water entering the water injection chamber 15, and reducing the subsequent heating cost.

[0044] Please refer to Figure 3 and Figure 5 , the water injection port 4 and the second steam inlet 3 are eccentrically arranged at the impeller 13 and the runner 9, respectively, which facilitates the water injection port 4 and the second steam inlet 3 to enter the water source and steam, driving the impeller 13 and the runner 9 to rotate quickly, ensuring that the impeller 13 and the runner 9 always rotate in one direction during operation, and the second steam inlet 3 is arranged obliquely downward, and the outer wall of the runner 9 is arranged obliquely upward, which effectively prevents the water source passing through the filler layer 8 from seeping into the second steam inlet 3, ensuring the stable operation of the second steam inlet 3, and the oblique arrangement of the runner 9 facilitates the diffusion of steam at the second steam inlet 3, which ensures the upward flow of steam under the action of the runner 9, accelerates the flow speed of the steam, and improves the deoxidization effect of the cooling water.

[0045] Please refer to Figure 2 and Figure 3 , the bottom end of the sealing cylinder 6 is located at the upper part of the permeation cylinder 5, and the lowest end of the sealing cylinder 6 is arranged in an open manner, which prevents water from being thrown onto the sealing cylinder 6 during the rotation of the water disc 7, so that the top of the filler layer is distributed with water, effectively ensuring the diffusion effect of the water on the filler layer 8, further reducing the waste of steam, and the open arrangement facilitates the absorption effect of the exhaust fan blade 18 on the non-condensable gas.

[0046] Example two

[0047] Please refer to Figure 8 and Figure 9, the bottom of the water disc 7 is provided with a gas collecting chamber 23, part of the steam carrying non-condensable gas will stay in the gas collecting chamber 23, preventing it from being discharged to the inside of the permeation cylinder 5, further improving the overall deoxidizing effect, and the piston 20 is slidably arranged at the bottom of the gas collecting chamber 23, the top of the piston 20 is elastically connected with a piston rod 22, and the piston rod 22 is slidably arranged at one side, and the permeation cylinder 5 is provided with a special-shaped rotating groove 19 at the position of the sliding rod 21, and the piston 20 is slidably arranged at the top of the water disc 7, in the process of rotating the water disc 7, one end of the sliding rod 21 will rotate in the special-shaped rotating groove 19, and the sliding rod 21 will reciprocatingly slide transversely under the action of the special-shaped rotating groove 19, in the process, the sliding rod 21 will press the piston rod 22 at one side, at this time, the piston rod 22 will drive the piston 20 to move up and down, so that the piston 20 discharges the non-condensable gas in the gas collecting chamber 23 outward, and the exhaust fan blade 18 can absorb the non-condensable gas, effectively preventing the non-condensable gas in the gas collecting chamber 23 from being too much and being scattered.

[0048] Example three

[0049] Please refer to Figure 3 The gasification deaerator vent steam recovery device shown in the figure, on the basis of example two, wherein the top of the water disc 7 is arranged in a concave manner, and the end face of the outer wall is arranged in an arc shape, when the heated water source is discharged to the bottom through the permeation cylinder 5, part of the water source will first stay in the concave part at the top of the water disc 7, and the non-condensable gas with residual heat in the gas collecting chamber 23 will heat the water source in the concave part, and then when the water disc 7 rotates, the water source will be diffused around through the arc-shaped end face, thereby realizing that the water source falling off in the process of rotating the water disc 7 will form a water film skirt at the water disc 7, further improving the diffusion effect of the water source under the action of the water disc 7.

[0050] The working principle of the present application is: when in use, the cooling water to be deoxidized is discharged into the water injection chamber 15 through the water injection port 4, the cooling water will penetrate into the permeation cylinder 5, at the same time, steam is injected into the steam chamber 16 through the first steam inlet 2, the steam will penetrate into the permeation cylinder 5 under the action of the through hole 12, and realize mixing and heating with the cooling water, under the action of the water injection pressure, the impeller 13 at the top of the permeation cylinder 5 will be driven to rotate, thereby driving the water disc 7 at the bottom of the permeation cylinder 5 to rotate, under the action of the water disc 7, the cooling water flowing out of the permeation cylinder 5 will be sprayed around, so that the cooling water forms a water film skirt under the action of the water disc 7 and is uniformly dispersed on the top of the filler layer 8, when the steam at the second steam inlet 3 drifts upward, the cooling water can be fully contacted with the steam.

[0051] The cooling water after oxygen removal through the second steam inlet 3 will flow to the bottom, and part of the steam will carry the non-condensable gas upward. Since the tank 1 is provided with a sealing cylinder 6, and the exhaust fan blade 18 is rotatably arranged in the sealing cylinder 6, the non-condensable gas and the steam enter the sealing cylinder 6 under the action of the exhaust fan blade 18. In this process, the non-condensable gas can be prevented from being in secondary contact with the cooling water to be oxygen removed when being discharged, thereby effectively improving the overall oxygen removal effect. The steam carrying the non-condensable gas is discharged into the waste heat cavity 14 at the top. Under the action of the spiral flow channel 17, the cooling water in the water injection chamber 15 is preheated, and then discharged, thereby realizing the recycling of the steam.

[0052] Although the embodiments of the present application have been shown and described, the specific embodiments are merely illustrative of the present application, and are not intended to limit the present application. The specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner, and those skilled in the art can make modifications, replacements and variations of the embodiments without creative contribution after reading the specification, as long as they are within the scope of the claims of the present application.

Claims

1. A gasification deaerator blow-off steam recovery device comprising a tank body (1), characterized in that: A plurality of partitions (11) are arranged in the tank body (1), a water injection chamber (15) is arranged in the tank body (1) and sealed between the partitions (11), a steam chamber (16) is arranged at the bottom of the water injection chamber (15), a permeation cylinder (5) is arranged in the water injection chamber (15) of the tank body (1), a plurality of through holes (12) are arranged on the permeation cylinder (5) and inclined, the bottom end of the permeation cylinder (5) penetrates the steam chamber (16), an impeller (13) is rotatably arranged at the top of the permeation cylinder (5), a water throwing disc (7) is connected to the bottom end of the impeller (13), a filler layer (8) is arranged in the tank body (1), a winding wheel (9) is rotatably arranged at the bottom of the filler layer (8), a sealing cylinder (6) is arranged at the top of the filler layer (8) of the tank body (1), both ends of the sealing cylinder (6) penetrate the partitions (11), and exhaust vanes (18) matched with the winding wheel (9) are rotatably arranged in the sealing cylinder (6). A gas collecting chamber (23) is arranged at the bottom of the water throwing disc (7), a piston (20) is slidably arranged at the bottom of the gas collecting chamber (23), a piston rod (22) is elastically connected to the top of the piston (20), a sliding rod (21) is slidably arranged at one side of the piston rod (22), a special-shaped rotating groove (19) matched with the sliding rod (21) is arranged in the permeation cylinder (5), and the sliding rod (21) and one end of the piston rod (22) are both arranged in an arc shape.

2. The gasification deaerator blowoff steam recovery device of claim 1, wherein: A waste heat cavity (14) is arranged at the top of the partition (11) in the tank body (1), a spiral flow channel (17) is arranged in the interlayer of the tank body (1) and at the water injection chamber (15), one end of the spiral flow channel (17) penetrates into the waste heat cavity (14), and the other end of the spiral flow channel (17) penetrates the tank body (1).

3. The gasification deaerator blowoff steam recovery device of claim 1, wherein: A plurality of water injection openings (4) and a first steam inlet (2) are arranged on the outer wall of the tank body (1) at the water injection chamber (15) and the steam chamber (16) respectively, and a second steam inlet (3) is arranged on the outer wall of the tank body (1) at the winding wheel (9).

4. The device of claim 1, wherein: The top of the water throwing disc (7) is arranged in a concave shape, and the end face of the outer wall of the water throwing disc (7) is arranged in an arc shape.

5. The device of claim 3, wherein: The water injection opening (4) and the second steam inlet (3) are arranged eccentrically at the impeller (13) and the winding wheel (9) respectively.

6. The device of claim 3, wherein: The second steam inlet (3) is arranged in an inclined downward manner, and the outer wall of the winding wheel (9) is arranged in an inclined upward manner.

7. The device of claim 1, wherein: The bottom end of the sealing cylinder (6) is arranged at the upper part of the permeation cylinder (5), and the lowest end of the sealing cylinder (6) is arranged in an open shape.

Images