Bubbling deoxidizing device for desalting water tank of boiler

Abstract

The invention discloses a bubbling deoxygenization device for a desalting water tank of a boiler, which comprises a tank body, and further comprises a gas inlet unit which comprises a gas distribution assembly rotationally arranged in the middle of the interior of the tank body and used for spraying inert gas into the tank body, and a driving assembly arranged at the lower part of the gas distribution assembly, located below the tank body and used for driving the gas distribution assembly to rotate; the bubble cutting unit is arranged in the box body, located on the outer side of the gas distribution assembly and used for synchronously cutting bubbles formed by the inert gas sprayed into the water by the gas distribution assembly. The driving assembly drives the gas distribution assembly to rotate, the gas distribution assembly inputs inert gas into water in the box body in a rotating mode, it is ensured that the inert gas can make full contact with the water, and meanwhile the driving assembly synchronously drives the bubble cutting unit to rotate; the bubble cutting unit is arranged, so that bubbles of different sizes formed by inert gas in water can be cut by the bubble cutting unit, the inert gas in the bubbles can be further ensured to be in full contact with the water, and the deoxidizing efficiency is improved.

Description

Technical Field

[0001] The present invention relates to the technical field of feed water deaeration in thermal systems, and specifically to a bubbling deaeration device for a boiler desalted water tank. Background Technique

[0002] During the operation of a boiler, excessive dissolved oxygen can cause severe corrosion of components such as economizers and pipelines, resulting in boiler shutdown and economic losses. Traditional deaeration technologies (such as thermal deaeration and chemical deaeration) have problems such as high energy consumption, complex operation, and easy secondary pollution. Existing bubbling deaeration devices remove dissolved oxygen by bubbling inert gases, but have the following defects:

[0003] 1. The contact time between the inert gas and water is short. The inert gas is fixedly distributed in a straight pipe, and the bubbles rise rapidly, with insufficient contact time with the water body, resulting in low deaeration efficiency;

[0004] 2. The distribution is uneven. The layout of the air outlet holes of the gas distribution pipe assembly is fixed, which easily leads to gas concentration in local areas and cannot achieve uniform deaeration of the box body, restricting the oxygen desorption efficiency.

[0005] The above content is only used to assist in understanding the technical solution of the present invention and does not represent an admission that the above content is the closest prior art. Summary of the Invention

[0006] The purpose of the present invention is to provide a bubbling deaeration device for a boiler desalted water tank to solve the problems of insufficient contact time between the inert gas and water and uneven distribution of the inert gas in water in the existing bubbling deaeration device proposed in the above background technique.

[0007] To achieve the above purpose, the present invention provides the following technical solution:

[0008] A bubbling deaeration device for a boiler desalted water tank, including a box body, and further including:

[0009] An air inlet unit, including a gas distribution component rotatably arranged in the middle inside the box body for spraying inert gas into the inside of the box body, and a driving component arranged below the gas distribution component and located below the box body for driving the gas distribution component to rotate;

[0010] A bubble cutting unit, arranged inside the box body and outside the gas distribution component, for synchronously cutting the bubbles formed by the inert gas sprayed into the water by the gas distribution component.

[0011] Further, a water inlet pipe for inputting water into the inside of the box body is communicated at the bottom of the box body and outside the bubble cutting component;

[0012] A water outlet pipe for discharging the deaerated water in the box body is communicated at the bottom of the box body and inside the bubble cutting component.

[0013] Further, the driving component includes:

[0014] The drive motor is fixedly connected to the lower end of the box body through a mounting frame, and the drive shaft of the drive motor penetrates from the lower end of the box body to the inside of the box body;

[0015] The drive gear is fixedly connected to the upper end of the drive shaft and is located inside the box body, and is used to drive the defoaming unit to rotate;

[0016] The second pulley is fixedly sleeved on the outside of the drive shaft and is located below the box body;

[0017] One end of the belt is sleeved on the outside of the second pulley, and the other end is connected to the air distribution component, and is used to drive the air distribution component to rotate synchronously with the defoaming unit.

[0018] Further, the air distribution component includes:

[0019] The adapter pipe penetrates from below the box body to the inside of the box body. One side of the adapter pipe is communicated with an air inlet pipe, and is used to input inert gas from outside the box body into the box body;

[0020] The distribution pipe is communicated with the upper end of the adapter pipe and is located in the middle inside the box body, and is used to converge the inert gas input by the adapter pipe;

[0021] The spray pipes are evenly distributed on the outside of the distribution pipe, and are used to evenly spray the inert gas in the distribution pipe into the box body.

[0022] Further, the adapter pipe includes:

[0023] The limit sleeve is fixedly connected to the upper end of the adapter pipe;

[0024] The rotating roller is rotatably connected to the inside of the limit sleeve at the lower part. A groove adapted to the opening size of the limit sleeve is provided on the outside of the rotating roller, and is used to limit the rotating roller;

[0025] The bearing frame is arranged in a U shape and is fixedly connected to the lower end of the box body, and is used to support the bottom of the limit sleeve.

[0026] Further, a ball is provided at the contact between the lower end of the rotating roller and the inside of the limit sleeve, and is used to reduce the friction between the rotating roller and the limit sleeve;

[0027] Holes for communicating the inside of the air inlet pipe with the inside of the distribution pipe are provided inside the limit sleeve and the rotating roller, and are used to transfer the inert gas input in the air inlet pipe to the inside of the distribution pipe.

[0028] Further, a first pulley is fixedly sleeved on the outside of the rotating roller and above the limit sleeve;

[0029] One end of the belt relative to the second pulley is sleeved on the outside of the first pulley, and is used to drive the first pulley to rotate.

[0030] Further, the foam cutting unit includes:

[0031] Cutting bars, fixedly connected to the lower end inside the box body, and multiple groups of the cutting bars are arranged outside the gas distribution component in an annular track;

[0032] A cover plate, fixedly connected to the upper ends of multiple groups of the cutting bars, and used for covering the annular area surrounded by the multiple cutting bars.

[0033] Further, the foam cutting unit further includes:

[0034] A sleeve, rotatably sleeved outside the annular area formed by the cutting bars;

[0035] Exhaust holes, evenly distributed outside the sleeve, and used for cooperating with the cutting bars to cut the water bubbles formed after the gas distribution component sprays inert gas;

[0036] A driven gear, fixedly sleeved at the lower part outside the sleeve, and the driven gear meshes with the driving gear, and is used for driving the sleeve to rotate.

[0037] Further, the lower end of the cover plate is higher than the upper end of the sleeve;

[0038] The outer diameter of the cover plate is larger than the inner diameter of the sleeve, and is used for limiting the upper end of the sleeve.

[0039] Compared with the prior art, the beneficial effects of the present invention are:

[0040] 1. In the present invention, the inert gas is transported into the box body through the gas distribution component, the driving component is started, and the driving component drives the gas distribution component to rotate, so that the gas distribution component inputs the inert gas into the water in the box body in a rotating manner, ensuring that the inert gas can be in full contact with the water. At the same time, the driving component also synchronously drives the foam cutting unit to rotate, so that water bubbles of different sizes formed by the inert gas in the water can be cut by the foam cutting unit, further ensuring that the inert gas in the water bubbles can be in full contact with the water and improving the deoxygenation efficiency. Description of the Drawings

[0041] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0042] Figure 2 It is a matching relationship diagram of the carrier and the box body of the present invention;

[0043] Figure 3 It is a schematic diagram of the structure of the foam cutting unit of the present invention;

[0044] Figure 4 It is a matching relationship diagram of the foam cutting unit and the air inlet unit of the present invention;

[0045] Figure 5This is the fitting relationship diagram of the sub-air pipe and the sleeve of the present invention;

[0046] Figure 6 This is the fitting relationship diagram of the cut strip fish cover plate of the present invention;

[0047] Figure 7 This is the fitting relationship diagram of the driving gear and the driven gear of the present invention;

[0048] Figure 8 This is the schematic internal structure diagram of the adapter pipe of the present invention.

[0049] Reference numerals: 100, box body; 101, air outlet pipe; 102, water inlet pipe; 103, water outlet pipe; 1, defoaming unit; 11, cut strip; 12, cover plate; 13, sleeve; 131, exhaust hole; 14, driven gear; 2, air inlet unit; 21, air distribution assembly; 211, first pulley; 212, adapter pipe; 2121, air inlet pipe; 2122, carrier; 2123, limit sleeve; 2124, ball; 2125, roller; 213, sub-air pipe; 214, nozzle; 22, driving assembly; 221, driving motor; 2211, mounting bracket; 222, driving gear; 223, second pulley; 224, belt. Detailed implementation manners

[0050] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0051] Please refer to Figure 1-8 , the present invention provides a technical solution:

[0052] A bubbling deaeration device for a boiler demineralized water tank, including a box body 100, and further including:

[0053] An air inlet unit 2, including an air distribution assembly 21 rotatably arranged in the middle inside the box body 100 for spraying inert gas into the box body 100, and a driving assembly 22 arranged below the air distribution assembly 21 and below the box body 100 for driving the air distribution assembly 21 to rotate;

[0054] A defoaming unit 1, arranged inside the box body 100 and outside the air distribution assembly 21, for synchronously cutting the bubbles formed by the inert gas sprayed by the air distribution assembly 21 into the water.

[0055] It should be noted that when deoxygenating the water in the box body 100, an inert gas is transported into the box body 100 through the gas distribution component 21. The driving component 22 is started, and the driving component 22 drives the gas distribution component 21 to rotate, so that the gas distribution component 21 inputs the inert gas into the water in the box body 100 in a rotating manner, ensuring that the inert gas and water can be fully contacted. At the same time, the driving component 22 also synchronously drives the foam cutting unit 1 to rotate, so that the foam cutting unit 1 can cut the bubbles of different sizes formed by the inert gas in the water, further ensuring that the inert gas in the bubbles can be fully contacted with the water and improving the deoxygenation efficiency.

[0056] As an improvement, as Figure 1-2 shown, a water inlet pipe 102 for inputting water into the box body 100 is communicated at the bottom of the box body 100 and outside the foam cutting component;

[0057] An outlet pipe 103 for discharging the deoxygenated water in the box body 100 is communicated at the bottom of the box body 100 and inside the foam cutting component.

[0058] As an improvement, as Figure 3-4 shown, the driving component 22 includes:

[0059] A driving motor 221, fixedly connected to the lower end of the box body 100 through a mounting frame 2211, and a driving shaft of the driving motor 221 penetrates from the lower end of the box body 100 to the inside of the box body 100;

[0060] A driving gear 222, fixedly connected to the upper end of the driving shaft and located inside the box body 100, for driving the foam cutting unit 1 to rotate;

[0061] A second belt pulley 223, fixedly sleeved on the outside of the driving shaft and located below the box body 100;

[0062] A belt 224, with one end sleeved on the outside of the second belt pulley 223 and the other end connected to the gas distribution component 21, for driving the gas distribution component 21 to rotate synchronously with the foam cutting unit 1.

[0063] Furthermore, as Figure 4-6 shown, the gas distribution component 21 includes:

[0064] A rotary connecting pipe 212, penetrating from below the box body 100 to the inside of the box body 100, and an air inlet pipe 2121 is communicated on one side of the rotary connecting pipe 212 for inputting the inert gas from outside the box body 100 into the box body 100;

[0065] A gas distribution pipe 213, communicated at the upper end of the rotary connecting pipe 212 and located in the middle inside the box body 100, for converging the inert gas input by the rotary connecting pipe 212;

[0066] The nozzle 214 is evenly distributed outside the branch gas pipe 213 and is used to evenly inject the inert gas in the branch gas pipe 213 into the box body 100;

[0067] Among them, an air outlet pipe 101 is provided on the upper side inside the box body 100, and is used to discharge the residual gas after the inert gas input into the box body 100 through the air inlet pipe 2121 is deoxidized.

[0068] Furthermore, as Figure 8 shown, the adapter pipe 212 includes:

[0069] The limit sleeve 2123 is fixedly connected to the upper end of the adapter pipe 212;

[0070] The roller 2125 is rotatably connected to the inside of the limit sleeve 2123 at the lower part. A groove adapted to the opening size of the limit sleeve 2123 is provided on the outside of the roller 2125 for limiting the roller 2125;

[0071] The carrier frame 2122 is arranged in a U shape and is fixedly connected to the lower end of the box body 100 for supporting the bottom of the limit sleeve 2123.

[0072] Among them, a ball 2124 is provided at the contact between the lower end of the roller 2125 and the inside of the limit sleeve 2123 for reducing the friction between the roller 2125 and the limit sleeve 2123;

[0073] Holes for communicating the air inlet pipe 2121 with the inside of the branch gas pipe 213 are provided inside the limit sleeve 2123 and the roller 2125 for transporting the inert gas input in the air inlet pipe 2121 into the branch gas pipe 213.

[0074] In addition, a first pulley 211 is fixedly sleeved on the outside of the roller 2125 and above the limit sleeve 2123;

[0075] One end of the belt 224 relative to the second pulley 223 is sleeved on the outside of the first pulley 211 for driving the first pulley 211 to rotate.

[0076] As an improvement, as Figure 4-6 shown, the foam cutting unit 1 includes:

[0077] The cutting strip 11 is fixedly connected to the lower end inside the box body 100, and multiple groups of the cutting strips 11 are arranged in an annular track outside the gas distribution assembly 21;

[0078] The cover plate 12 is fixedly connected to the upper ends of multiple groups of the cutting strips 11 for covering the annular area surrounded by the multiple cutting strips 11.

[0079] Further, the foam cutting unit 1 further includes:

[0080] The sleeve 13 is rotatably sleeved outside the annular region formed by the cutting strip 11;

[0081] The exhaust holes 131 are evenly distributed outside the sleeve 13 and are used to cooperate with the cutting strip 11 to cut the water bubbles formed after the inert gas is sprayed by the gas distribution component 21;

[0082] The driven gear 14 is fixedly sleeved at the lower part outside the sleeve 13. The driven gear 14 meshes with the driving gear 222 and is used to drive the sleeve 13 to rotate.

[0083] Furthermore, the lower end of the cover plate 12 is higher than the upper end of the sleeve 13;

[0084] The outer diameter of the cover plate 12 is larger than the inner diameter of the sleeve 13 and is used to limit the upper end of the sleeve 13.

[0085] It should be added that: between the rotating roller 2125 and the box body 100, and between the drive shaft of the drive motor 221 and the box body 100 in the present invention, are both sealed to prevent the water in the box body 100 from leaking.

[0086] It should be noted that: in the specific implementation process of the present invention, as Figure 3-6 shown, initially, the box body 100 is filled with water with a certain liquid level height that needs to be deoxygenated. The inert gas is sequentially sent into the interior of the box body 100 through the air inlet pipe 2121, the limiting sleeve 2123, the rotating roller 2125, the gas distribution pipe 213, and the spray pipe 214. The drive motor 221 is started. The drive motor 221 drives the first belt pulley 211 to rotate through the belt 224. The first belt pulley 211 drives the rotating roller 2125 to rotate in the limiting sleeve 2123. The rotating roller 2125 drives the spray pipe 214 to rotate through the gas distribution pipe 213, so that while the spray pipe 214 sprays the inert gas into the water, it also synchronously stirs the water in the box body 100, accelerating the flow rate of the water in the box body 100 and ensuring that the inert gas sprayed by the spray pipe 214 is more evenly mixed with the water;

[0087] As Figure 4-5 shown, while the drive motor 221 drives the belt 224 to rotate through the second belt pulley 223, the drive motor 221 also drives the driving gear 222 to rotate. The driving gear 222 drives the sleeve 13 to rotate around the outside of the cutting strip 11 through the driven gear 14. During this process, the cutting strip 11 remains stationary, and the exhaust holes 131 during rotation are continuously cut by the cutting strip 11, so that the inert gas sprayed by the spray pipe 214 forms water bubbles of different sizes in the water and is cut into fine water bubbles, ensuring that the rare gas contained in the water bubbles is fully mixed with the water, further improving the uniformity of the distribution of the inert gas in the water, prolonging the contact time between the inert gas and the water body, and having a high deoxygenation efficiency;

[0088] As shown Figure 2-4 In addition, during the process of injecting the inert gas into the water by the nozzle 214 in the present invention, the inert gas moves towards the exhaust hole 131 in the form of bubbles and passes through the exhaust hole 131, and finally is discharged at the outlet pipe 101. At the same time, the water inlet pipe 102 is kept continuously inputting the water to be deoxygenated into the box body 100, and the water that has completed the deoxygenation work in the box body 100 is continuously discharged through the outlet pipe 103. During this process, the water flow direction in the box body 100 is from the external exhaust hole 131 of the sleeve 13 into the inside of the sleeve 13, while the inert gas is transferred from the inside of the sleeve 13 to the outside of the sleeve 13 through the exhaust hole 131, so that a convection is formed between the water flow and the inert gas, increasing the extrusion force between the inert gas and the water flow, ensuring full contact between the inert gas and the water, and improving the oxygen analysis efficiency in the water.

[0089] It should be noted that in this article, relational terms such as first and second are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, the term "comprising", "including" or any other variant thereof is intended to cover non-exclusive inclusion, so that a process, method, article or device comprising a series of elements not only includes those elements, but also includes other elements not expressly listed, or further includes elements inherent to such process, method, article or device.

[0090] Although the embodiments of the present invention have been shown and described, those of ordinary skill in the art can understand that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principles and spirit of the present invention. The scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A bubbling deaeration device for a boiler demineralized water tank, comprising a box body (100), characterized in that, It further includes: An intake unit (2), including a gas distribution component (21) rotatably arranged in the middle inside the box body (100) for injecting inert gas into the inside of the box body (100), and a driving component (22) arranged below the gas distribution component (21) and located below the box body (100) for driving the gas distribution component (21) to rotate; A foam cutting unit (1), arranged inside the box body (100) and outside the gas distribution component (21), for synchronously cutting the bubbles formed by the inert gas sprayed by the gas distribution component (21) into the water.

2. The bubbling deaeration device for a boiler demineralized water tank according to claim 1, wherein: A water inlet pipe (102) for inputting water into the inside of the box body (100) is communicated at the bottom of the box body (100) and outside the foam cutting component; A water outlet pipe (103) for discharging the deaerated water in the box body (100) is communicated at the bottom of the box body (100) and inside the foam cutting component.

3. The bubbling deaeration device for a boiler demineralized water tank according to claim 1, wherein: The driving component (22) includes: A driving motor (221), fixedly connected to the lower end of the box body (100) through a mounting frame (2211), and the driving shaft of the driving motor (221) penetrates from the lower end of the box body (100) to the inside of the box body (100); A driving gear (222), fixedly connected to the upper end of the driving shaft and located inside the box body (100), for driving the foam cutting unit (1) to rotate; A second pulley (223), fixedly sleeved outside the driving shaft and located below the box body (100); A belt (224), one end of which is sleeved outside the second pulley (223), and the other end is connected to the gas distribution component (21), for driving the gas distribution component (21) to rotate synchronously with the foam cutting unit (1).

4. The bubbling deaeration device for a boiler demineralized water tank according to claim 3, wherein: The gas distribution component (21) includes: A transfer pipe (212), penetrating from below the box body (100) to the inside of the box body (100), and an intake pipe (2121) is communicated on one side of the transfer pipe (212) for inputting inert gas from outside the box body (100) into the inside of the box body (100); A gas distribution pipe (213), communicated at the upper end of the transfer pipe (212) and located in the middle inside the box body (100), for converging the inert gas input by the transfer pipe (212); Spray pipes (214), evenly distributed outside the gas distribution pipe (213), for evenly spraying the inert gas in the gas distribution pipe (213) into the box body (100).

5. The bubbling deaeration device for a boiler demineralized water tank according to claim 4, wherein: The transfer pipe (212) includes: A limit sleeve (2123), fixedly connected to the upper end of the transfer pipe (212); A rotating roller (2125), rotatably connected to the inside of the limit sleeve (2123) at the lower part, and a groove adapted to the opening size of the limit sleeve (2123) is provided on the outside of the rotating roller (2125) for limiting the rotating roller (2125). The carrier frame (2122) is U-shaped and fixedly connected to the lower end of the box body (100) for supporting the bottom of the limit sleeve (2123).

6. The bubble deaeration device for a boiler demineralized water tank according to claim 5, wherein: A ball (2124) is provided at the contact between the lower end of the rotating roller (2125) and the inside of the limit sleeve (2123) to reduce the friction between the rotating roller (2125) and the limit sleeve (2123); Holes for communicating the inside of the air inlet pipe (2121) with the inside of the sub-air pipes (213) are provided inside the limit sleeve (2123) and the rotating roller (2125) to transfer the inert gas input into the air inlet pipe (2121) into the sub-air pipes (213).

7. The bubble deaeration device for a boiler demineralized water tank according to claim 5, wherein: A first pulley (211) is fixedly sleeved outside the rotating roller (2125) and above the limit sleeve (2123); One end of the belt (224) relative to the second pulley (223) is sleeved outside the first pulley (211) to drive the first pulley (211) to rotate.

8. The bubble deaeration device for a boiler demineralized water tank according to claim 3, wherein: The bubble cutting unit (1) includes: Cutting strips (11) are fixedly connected to the lower end inside the box body (100), and multiple groups of the cutting strips (11) are arranged in an annular track outside the air distribution assembly (21); A cover plate (12) is fixedly connected to the upper ends of the multiple groups of cutting strips (11) to cover the annular area surrounded by the multiple cutting strips (11).

9. The bubble deaeration device for a boiler demineralized water tank according to claim 8, wherein: The bubble cutting unit (1) further includes: A sleeve (13) is rotatably sleeved outside the annular area formed by the cutting strips (11); Exhaust holes (131) are evenly distributed outside the sleeve (13) and are used to cooperate with the cutting strips (11) to cut the water bubbles formed after the air distribution assembly (21) sprays inert gas; A driven gear (14) is fixedly sleeved at the lower part outside the sleeve (13), and the driven gear (14) meshes with the driving gear (222) to drive the sleeve (13) to rotate.

10. The bubble deaeration device for a boiler demineralized water tank according to claim 9, wherein: The lower end of the cover plate (12) is higher than the upper end of the sleeve (13); The outer diameter of the cover plate (12) is larger than the inner diameter of the sleeve (13) to limit the upper end of the sleeve (13).

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