A boiler demineralized water tank bubbling deoxygenation device

Abstract

This invention discloses a boiler demineralized water tank bubbling deoxygenation device, comprising a tank body and further comprising: an air inlet unit, including a gas distribution component rotatably disposed in the middle of the tank body for injecting inert gas into the tank body, and a drive component disposed below the gas distribution component and located below the tank body for driving the gas distribution component to rotate; and a bubble-cutting unit disposed inside the tank body and located outside the gas distribution component for simultaneously cutting the bubbles formed by the inert gas sprayed into the water by the gas distribution component. By driving the gas distribution component to rotate, the gas distribution component introduces inert gas into the water in the tank in a rotating manner, ensuring sufficient contact between the inert gas and the water. Simultaneously, the drive component also drives the bubble-cutting unit to rotate, allowing the bubble-cutting unit to cut the bubbles of different sizes formed by the inert gas in the water, further ensuring sufficient contact between the inert gas and the water within the bubbles, thereby improving deoxygenation efficiency.

Description

Technical Field

[0001] This invention relates to the field of deoxygenation technology for feedwater in thermal systems, specifically a bubbling deoxygenation device for a boiler demineralized water tank. Background Technology

[0002] Excessive dissolved oxygen levels in boilers can lead to severe corrosion of economizers, pipes, and other components, resulting in boiler shutdowns and economic losses. Traditional deoxygenation technologies (such as thermal deoxygenation and chemical deoxygenation) suffer from high energy consumption, complex operation, and susceptibility to secondary pollution. Existing bubbling deoxygenation devices remove dissolved oxygen by bubbling inert gas, but they have the following drawbacks:

[0003] 1. The inert gas has a short contact time with water. The inert gas is fixedly distributed in a straight tube, and the bubbles rise rapidly, resulting in insufficient contact time with the water and low deoxygenation efficiency.

[0004] 2. Uneven distribution: The fixed layout of the gas outlet of the gas distribution pipe assembly can easily lead to gas concentration in local areas, making it impossible to achieve uniform deoxygenation of the chamber and limiting the oxygen desorption efficiency.

[0005] The above content is only used to help understand 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 this invention is to provide a bubbling deaeration device for boiler demineralized water tanks, in order to solve the problems of insufficient contact time between inert gas and water and uneven distribution of inert gas in water in the prior art bubbling deaeration devices mentioned in the background art.

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

[0008] A boiler demineralized water tank bubbling deaeration device includes a tank body and further includes:

[0009] The air intake unit includes a gas distribution component rotatably disposed in the middle of the housing for injecting inert gas into the housing, and a drive component disposed below the gas distribution component and located below the housing for driving the gas distribution component to rotate.

[0010] The bubble-cutting unit, located inside the housing and outside the gas distribution assembly, is used to simultaneously cut the bubbles formed by the inert gas sprayed into the water by the gas distribution assembly.

[0011] Furthermore, a water inlet pipe for inputting water into the interior of the box is connected to the bottom of the box and outside the bubble-reducing assembly;

[0012] The bottom of the chamber, located inside the deaeration assembly, is connected to a water outlet pipe for discharging the deoxygenated water from the chamber.

[0013] Furthermore, the driving component includes:

[0014] A drive motor is fixedly connected to the lower end of the housing via a mounting bracket, and the drive shaft of the drive motor passes through the lower end of the housing and into the interior of the housing.

[0015] The drive gear is fixedly connected to the upper end of the drive shaft and located inside the housing, 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 located below the housing;

[0017] The belt has one end fitted on the outside of the second pulley and the other end connected to the gas distribution assembly, which is used to drive the gas distribution assembly to rotate synchronously with the foam-reducing unit.

[0018] Furthermore, the gas distribution assembly includes:

[0019] The adapter pipe extends from the bottom of the housing into the interior of the housing. One side of the adapter pipe is connected to an air inlet pipe, which is used to input inert gas from the outside of the housing into the interior of the housing.

[0020] The gas distribution pipe is connected to the upper end of the transfer pipe and located in the middle of the box, and is used to collect the inert gas input from the transfer pipe.

[0021] The nozzles are evenly distributed on the outside of the gas distribution pipe and are used to evenly spray the inert gas inside the gas distribution pipe into the box.

[0022] Furthermore, the transfer tube includes:

[0023] The limiting sleeve is fixedly connected to the upper end of the adapter tube;

[0024] The lower part of the rotating roller is rotatably connected inside the limiting sleeve. The outer side of the rotating roller is provided with a groove that matches the size of the opening of the limiting sleeve, which is used to limit the rotation of the roller.

[0025] The support frame, U-shaped, is fixedly connected to the lower end of the box and is used to support the bottom of the limiting sleeve.

[0026] Furthermore, the lower end of the rotating roller is provided with ball bearings at the contact point with the inside of the limiting sleeve to reduce the friction between the rotating roller and the limiting sleeve.

[0027] The limiting sleeve and the rotating roller are provided with holes for connecting the inside of the air inlet pipe and the air distribution pipe, so as to transfer the inert gas input in the air inlet pipe to the air distribution pipe.

[0028] Furthermore, a first pulley is fixedly sleeved on the outer side of the rotating roller and above the limiting sleeve;

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

[0030] Furthermore, the defoaming unit includes:

[0031] A cutting strip is fixedly connected to the lower end of the inside of the housing, and multiple sets of the cutting strip are arranged in a circular trajectory on the outside of the gas distribution assembly.

[0032] A cover plate is fixedly connected to the upper end of the multiple sets of cutting strips and is used to cover the annular area enclosed by the multiple cutting strips.

[0033] Furthermore, the defoaming unit also includes:

[0034] The sleeve is rotatably fitted onto the outside of the annular area formed by the cutting bar;

[0035] Exhaust holes are evenly distributed on the outside of the sleeve and are used to cut the water bubbles formed after the gas distribution component is sprayed with inert gas, in conjunction with the cutting bar.

[0036] The driven gear is fixedly sleeved on the lower outer side of the sleeve. The driven gear meshes with the driving gear and is used to drive the sleeve to rotate.

[0037] Furthermore, 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 it is used to limit the upper end of the sleeve.

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

[0040] 1. This invention delivers inert gas into the tank via a gas distribution assembly. The drive assembly is then activated, causing the gas distribution assembly to rotate. This rotation of the gas distribution assembly introduces inert gas into the water within the tank, ensuring sufficient contact between the inert gas and water. Simultaneously, the drive assembly also drives a bubble-shaving unit to rotate, allowing the bubble-shaving unit to cut apart bubbles of varying sizes formed by the inert gas in the water. This further ensures sufficient contact between the inert gas and water within the bubbles, improving deoxygenation efficiency. Attached Figure Description

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

[0042] Figure 2 This is a diagram showing the fit between the support frame and the housing of the present invention;

[0043] Figure 3 This is a schematic diagram of the bubble-reducing unit structure of the present invention;

[0044] Figure 4 This diagram illustrates the relationship between the bubble-reducing unit and the air intake unit of the present invention.

[0045] Figure 5This is a diagram showing the fit between the gas distribution pipe and the sleeve in this invention;

[0046] Figure 6 This is a diagram showing the fit and fit of the fish-cutting cover plate of the present invention;

[0047] Figure 7 This is a diagram showing the meshing relationship between the driving gear and the driven gear of the present invention.

[0048] Figure 8 This is a schematic diagram of the internal structure of the transfer tube of the present invention.

[0049] Reference numerals: 100, housing; 101, air outlet pipe; 102, water inlet pipe; 103, water outlet pipe; 1, bubble-cutting unit; 11, cutting strip; 12, cover plate; 13, sleeve; 131, exhaust port; 14, driven gear; 2, air inlet unit; 21, air distribution assembly; 211, first pulley; 212, adapter pipe; 2121, air inlet pipe; 2122, support frame; 2123, limiting sleeve; 2124, ball bearing; 2125, rotating roller; 213, air distribution pipe; 214, nozzle; 22, drive assembly; 221, drive motor; 2211, mounting bracket; 222, drive gear; 223, second pulley; 224, belt. Detailed Implementation

[0050] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0051] Please see Figure 1-8 The present invention provides a technical solution:

[0052] A boiler demineralized water tank bubbling deaerator includes a tank body 100, and further includes:

[0053] The air intake unit 2 includes a gas distribution component 21 rotatably disposed in the middle of the housing 100 for injecting inert gas into the housing 100, and a drive component 22 disposed below the gas distribution component 21 and located below the housing 100 for driving the gas distribution component 21 to rotate.

[0054] The bubble-cutting unit 1 is located inside the housing 100 and outside the gas distribution assembly 21, and is used to simultaneously cut the bubbles formed by the inert gas sprayed into the water by the gas distribution assembly 21.

[0055] It should be noted that when deoxygenating the water in the tank 100, inert gas is delivered into the tank 100 through the gas distribution component 21. The drive component 22 is then activated, causing the gas distribution component 21 to rotate. This allows the gas distribution component 21 to input inert gas into the water in the tank 100 in a rotating manner, ensuring that the inert gas and water can fully contact each other. At the same time, the drive component 22 also drives the bubble-cutting unit 1 to rotate, so that the bubbles of different sizes formed by the inert gas in the water can be cut by the bubble-cutting unit 1, further ensuring that the inert gas in the bubbles can fully contact the water and improve the deoxygenation efficiency.

[0056] As an improvement, such as Figure 1-2 As shown, the bottom of the housing 100 and the outside of the defoaming assembly are connected to a water inlet pipe 102 for inputting water into the housing 100.

[0057] The bottom of the housing 100, located inside the deaeration assembly, is connected to a water outlet pipe 103 for discharging the deoxygenated water from the housing 100.

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

[0059] The drive motor 221 is fixedly connected to the lower end of the housing 100 via the mounting bracket 2211, and the drive shaft of the drive motor 221 passes through the lower end of the housing 100 and into the interior of the housing 100.

[0060] The drive gear 222 is fixedly connected to the upper end of the drive shaft and located inside the housing 100, and is used to drive the bubble-reducing unit 1 to rotate;

[0061] The second pulley 223 is fixedly sleeved on the outside of the drive shaft and located below the housing 100;

[0062] The belt 224 has one end sleeved on the outside of the second pulley 223 and the other end connected to the gas distribution assembly 21, which is used to drive the gas distribution assembly 21 to rotate synchronously with the foaming unit 1.

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

[0064] The adapter pipe 212 extends from the bottom of the housing 100 into the interior of the housing 100. One side of the adapter pipe 212 is connected to an air inlet pipe 2121, which is used to input inert gas from the outside of the housing 100 into the interior of the housing 100.

[0065] The gas distribution pipe 213 is connected to the upper end of the transfer pipe 212 and located in the middle of the box 100, and is used to collect the inert gas input by the transfer pipe 212.

[0066] The nozzle 214 is evenly distributed on the outside of the gas distribution pipe 213 and is used to evenly spray the inert gas in the gas distribution pipe 213 into the box 100.

[0067] The upper side of the box 100 is provided with an exhaust pipe 101, which is used to allow the residual gas after deoxygenation by the intake pipe 2121 to enter the box 100 and then be discharged.

[0068] Furthermore, such as Figure 8 As shown, the transfer tube 212 includes:

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

[0070] The lower part of the rotating roller 2125 is rotatably connected inside the limiting sleeve 2123. The outer side of the rotating roller 2125 is provided with a groove that matches the size of the opening of the limiting sleeve 2123, which is used to limit the rotating roller 2125.

[0071] The support frame 2122 is U-shaped and fixedly connected to the lower end of the housing 100 to support the bottom of the limiting sleeve 2123.

[0072] Among them, the lower end of the rotating roller 2125 is provided with a ball bearing 2124 at the contact point with the inside of the limiting sleeve 2123 to reduce the friction between the rotating roller 2125 and the limiting sleeve 2123.

[0073] The limiting sleeve 2123 and the rotating roller 2125 are provided with holes for connecting the air inlet pipe 2121 and the air distribution pipe 213, so as to transfer the inert gas input in the air inlet pipe 2121 to the air distribution pipe 213.

[0074] In addition, a first pulley 211 is fixedly sleeved on the outer side of the roller 2125 and above the limiting 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, and is used to drive the first pulley 211 to rotate.

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

[0077] A cutting strip 11 is fixedly connected to the lower end of the inside of the housing 100. Multiple sets of the cutting strip 11 are arranged in a circular trajectory on the outside of the gas distribution assembly 21.

[0078] The cover plate 12 is fixedly connected to the upper end of the multiple sets of cutting strips 11 and is used to cover the annular area enclosed by the multiple cutting strips 11.

[0079] Furthermore, the defoaming unit 1 also includes:

[0080] Sleeve 13 is rotatably sleeved on the outside of the annular area formed by the cutting strip 11;

[0081] Exhaust holes 131 are evenly distributed on the outside of the sleeve 13 and are used to cut the water bubbles formed after the gas distribution component 21 is sprayed with inert gas in conjunction with the cutting bar 11.

[0082] Driven gear 14 is fixedly sleeved on the lower outer side of sleeve 13. Driven gear 14 meshes with drive gear 222 and is used to drive 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: in this invention, the roller 2125 and the housing 100, and the drive shaft of the drive motor 221 and the housing 100 are all sealed to prevent water leakage inside the housing 100.

[0086] It should be noted that: in the specific implementation process of this invention, such as Figure 3-6 As shown, initially, the tank 100 contains water of a certain liquid level that needs to be deoxygenated. Inert gas is sequentially sent into the tank 100 through the inlet pipe 2121, the limiting sleeve 2123, the rotating roller 2125, the gas distribution pipe 213, and the nozzle 214. The drive motor 221 is started, and the drive motor 221 drives the first pulley 211 to rotate through the belt 224. The first pulley 211 drives the rotating roller 2125 to rotate within the limiting sleeve 2123. The rotating roller 2125 drives the nozzle 214 to rotate through the gas distribution pipe 213. This allows the nozzle 214 to spray inert gas into the water while simultaneously stirring the water in the tank 100, accelerating the water flow speed in the tank 100 and ensuring that the inert gas sprayed from the nozzle 214 mixes more evenly with the water.

[0087] like Figure 4-5 As shown, while the drive motor 221 drives the belt 224 to rotate through the second pulley 223, the drive motor 221 also drives the drive gear 222 to rotate. The drive gear 222 drives the sleeve 13 to rotate around the outside of the cutting bar 11 through the driven gear 14. During this process, the cutting bar 11 remains stationary. The cutting bar 11 continuously cuts the exhaust hole 131 during the rotation process, so that the inert gas sprayed by the nozzle 214 forms bubbles of different sizes in the water and is cut into small bubbles. This ensures that the rare gas contained in the bubbles is fully mixed with the water, further improving the uniformity of the distribution of inert gas in the water, prolonging the contact time between the inert gas and the water, and achieving high deoxygenation efficiency.

[0088] like Figure 2-4 As shown, in addition, during the process of spraying inert gas into the water through the nozzle 214, the inert gas moves towards and passes through the vent hole 131 in the form of bubbles, and is finally discharged at the outlet pipe 101. At the same time, the water inlet pipe 102 continuously inputs the water that needs to be deoxygenated into the tank 100, and the water that has completed the deoxygenation work in the tank 100 is continuously discharged through the outlet pipe 103. In this process, the water flow direction in the tank 100 is from the vent hole 131 on the outside 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 vent hole 131, so that the water flow and the inert gas form convection, which increases the extrusion pressure between the inert gas and the water flow, ensures that the inert gas and the water are in full contact, and improves the oxygen desorption efficiency in the water.

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

[0090] Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A boiler demineralized water tank deaerating device comprising a tank (100), characterized in that, Also includes: The air intake unit (2) includes a gas distribution assembly (21) rotatably disposed in the middle of the housing (100) for injecting inert gas into the housing (100), and a drive assembly (22) disposed at the lower part of the gas distribution assembly (21) and located below the housing (100) for driving the gas distribution assembly (21) to rotate. The bubble-cutting unit (1) is located inside the housing (100) and outside the gas distribution assembly (21), and is used to simultaneously cut the bubbles formed by the inert gas sprayed into the water by the gas distribution assembly (21). The defoaming unit (1) includes: Cutting strips (11) are fixedly connected to the lower end of the inside of the housing (100), and multiple sets of cutting strips (11) are provided on the outside of the gas distribution assembly (21) in a circular trajectory; A cover plate (12) is fixedly connected to the upper end of multiple sets of cutting strips (11) and is used to cover the annular area enclosed by multiple cutting strips (11); The sleeve (13) is rotatably fitted on the outside of the annular area formed by the cutting strip (11); The exhaust holes (131) are evenly distributed on the outside of the sleeve (13) and are used to cut the water bubbles formed after the gas distribution assembly (21) sprays inert gas with the cutting bar (11).

2. The boiler demineralized water tank bubbling deoxygenation device according to claim 1, characterized in that: The bottom of the housing (100) and outside the bubble-reducing unit (1) is connected to a water inlet pipe (102) for inputting water into the housing (100); The bottom of the box (100) and inside the deaeration unit (1) is connected to a water outlet pipe (103) for discharging the deoxygenated water from the box (100).

3. The boiler demineralized water tank bubbling deaerator according to claim 1, characterized in that: The driving component (22) includes: The drive motor (221) is fixedly connected to the lower end of the housing (100) by the mounting bracket (2211), and the drive shaft of the drive motor (221) passes through the lower end of the housing (100) into the interior of the housing (100); The drive gear (222) is fixedly connected to the upper end of the drive shaft and located inside the housing (100), and is used to drive the bubble-reducing unit (1) to rotate; The second pulley (223) is fixedly sleeved on the outside of the drive shaft and located below the housing (100); The belt (224) is fitted on the outside of the second pulley (223) at one end and connected to the gas distribution assembly (21) at the other end, and is used to drive the gas distribution assembly (21) to rotate synchronously with the foaming unit (1).

4. The boiler demineralized water tank bubbling deoxygenation device according to claim 3, characterized in that: The gas distribution assembly (21) includes: The adapter pipe (212) extends from the bottom of the housing (100) into the interior of the housing (100). One side of the adapter pipe (212) is connected to an air inlet pipe (2121) for introducing inert gas from the outside of the housing (100) into the interior of the housing (100). The gas distribution pipe (213) is connected to the upper end of the transfer pipe (212) and located in the middle of the box (100), and is used to collect the inert gas input from the transfer pipe (212); The nozzle (214) is evenly distributed on the outside of the gas distribution pipe (213) and is used to evenly spray the inert gas in the gas distribution pipe (213) into the box (100).

5. The boiler demineralized water tank bubbling deoxygenation device according to claim 4, characterized in that: The transfer tube (212) includes: The limiting sleeve (2123) is fixedly connected to the upper end of the adapter tube (212); The lower part of the rotating roller (2125) is rotatably connected inside the limiting sleeve (2123). The outer side of the rotating roller (2125) is provided with a groove that matches the size of the opening of the limiting sleeve (2123) for limiting the rotating roller (2125). The support frame (2122) is U-shaped and fixedly connected to the lower end of the box (100) to support the bottom of the limiting sleeve (2123).

6. The boiler demineralized water tank bubbling deoxygenation device according to claim 5, characterized in that: The lower end of the rotating roller (2125) is provided with a ball bearing (2124) at the contact point with the inside of the limiting sleeve (2123) to reduce the friction between the rotating roller (2125) and the limiting sleeve (2123); The limiting sleeve (2123) and the rotating roller (2125) are provided with holes for connecting the air inlet pipe (2121) and the air distribution pipe (213) to transfer the inert gas input in the air inlet pipe (2121) to the air distribution pipe (213).

7. The boiler demineralized water tank bubbling deoxygenation device according to claim 5, characterized in that: A first pulley (211) is fixedly sleeved on the outside of the rotating roller (2125) and above the limiting sleeve (2123); One end of the belt (224) relative to the second pulley (223) is sleeved on the outside of the first pulley (211) to drive the first pulley (211) to rotate.

8. A boiler demineralized water tank bubbling deoxygenation device according to claim 3, characterized in that: The bubble-reducing unit (1) further includes: The driven gear (14) is fixedly sleeved on the lower outer side of the sleeve (13). The driven gear (14) meshes with the drive gear (222) to drive the sleeve (13) to rotate.

9. A boiler demineralized water tank bubbling deoxygenation device according to claim 8, characterized in that: 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), and it is used to limit the upper end of the sleeve (13).

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