Normal temperature filtering type sponge iron deaerator

Abstract

The present application relates to sponge iron oxygen remover technical field, and disclose a kind of normal temperature filter formula sponge iron oxygen remover, including tank, the top and bottom of tank are respectively connected with water inlet pipe and drain pipe, and the inside of tank is provided with filter material, the top of tank is installed with slow motor, the output shaft of slow motor is connected with rotating shaft, and rotating shaft is located inside tank and with tank coaxial, the outside of rotating shaft is connected with water distributor, and water distributor is located above filter material, slow motor works and drives water distributor rotation, promote water distribution uniformity by centrifugal force.The present application is by being provided with water distributor, and filter structure is set in the water outlet position of water distributor, can realize filtering effect to the water needing to be treated, reduce the influence of impurities in water to filter material, prolong the service life of filter material, simultaneously water distributor is set as annular structure, and passageway is set in the middle, also can be convenient filter material backwash, ensure that impurities can be normally discharged.

Description

Technical Field

[0001] This invention relates to the field of sponge iron deaerator technology, specifically a room temperature filter-type sponge iron deaerator. Background Technology

[0002] A sponge iron deaerator is a room-temperature filtration-type chemical deoxygenation device, such as for steam boiler feedwater. Dissolved oxygen in the feedwater can adhere to the walls of metal pipes and other equipment, forming oxides that cause serious corrosion damage to the boiler. It is mainly used in hot water boiler makeup water, low-pressure steam boiler feedwater, industrial circulating cooling water, and oilfield injection water. It mainly consists of a deaerator body containing sponge iron filter media, a highly active sponge iron deaerator, valve group, differential pressure transmitter or pressure gauge, etc. When water flows through the loose and porous sponge iron filter media, the iron reacts with the dissolved oxygen, converting the oxygen into flocculent precipitates, which can then be removed by backwashing.

[0003] In addition to the filter media, some reaction products and trapped impurities will also accumulate on the inner wall of the tank. If it is not cleaned for a long time, these contaminants will accumulate and thicken, increasing water flow resistance and potentially breeding microorganisms, thus exacerbating the risk of corrosion to the tank. Summary of the Invention

[0004] In view of the shortcomings of existing sponge iron deaerators mentioned in the background art, the present invention provides a room temperature filter-type sponge iron deaerator, which has the advantages of thorough backwashing, easy maintenance and long service life, thus solving the technical problems mentioned in the background art.

[0005] This invention provides the following technical solution: a room-temperature filter-type sponge iron deaerator, comprising a tank, with an inlet pipe and a drain pipe connected to the top and bottom of the tank respectively, and filter media installed inside the tank. A slow-speed motor is installed on the top of the tank, and the output shaft of the slow-speed motor is connected to a rotating shaft, which is located inside the tank and coaxial with the tank. A water distributor is connected to the outside of the rotating shaft, and the water distributor is located above the filter media. When the slow-speed motor is working, it drives the water distributor to rotate, using centrifugal force to promote uniform water distribution. A sleeve is fitted to the bottom of the inlet pipe, and a filter shell is connected to the bottom of the sleeve. Through the cooperation of the filter shell and the water distributor, the water can be initially filtered, reducing impurities entering the filter media and helping to ensure the service life of the filter media.

[0006] Furthermore, the water distributor has a ring-shaped structure with an flared opening at the top to facilitate water flow. A filter plate is installed at the bottom of the water distributor, with an arc-shaped bottom. The overall cross-section of the water distributor is shaped like an "8", which increases the filtration area and prevents impurities from being retained in the reverse direction during backwashing. The bottom diameter of the water distributor corresponds to the cylinder diameter of the tank, which can achieve a filtration effect, allowing impurities to be retained inside the water distributor and reducing the contamination and wear of the filter media. A drain chamber is set in the middle of the water distributor, with an flared opening at the bottom facing the filter media to facilitate the discharge of impurities from the filter media during subsequent backwashing. The inner side of the drain chamber is connected to the bottom of the rotating shaft.

[0007] Furthermore, the bottom outlet of the water inlet pipe is located above the flared top of the water distributor, and a drain port II is provided on the side where the water inlet pipe connects to the tank body for discharging impurities during backwashing.

[0008] Furthermore, the top of the sleeve is sealed to the inner wall of the inlet pipe through a rubber membrane, and a drain port I is provided on one side of the bottom of the sleeve. During backwashing, the filter shell and the sleeve move upward under the buoyancy of the float, so that drain port I coincides with drain port II, which can ensure the normal discharge of dirt.

[0009] Furthermore, the bottom of the filter housing has several filter holes, and a float is connected to the outside of the filter housing. The buoyancy of the float in the water is greater than the weight of the filter housing and the sleeve as a whole.

[0010] Furthermore, a water collector is installed below the filter media. The top of the water collector has a flared structure, and the diameter of the top of the water collector corresponds to the diameter of the inner wall of the tank. The bottom of the water collector is connected to the drain pipe.

[0011] Furthermore, the core component of the filter media is active iron, which has a sponge-like porous structure. It removes oxygen by reacting with dissolved oxygen in the water to form ferric hydroxide precipitate.

[0012] Furthermore, a protrusion is connected to the outside of the rotating shaft. When the rotating shaft rotates, the protrusion contacts the bottom of the filter shell and exerts pressure on the filter shell, so that the rotating shaft can drive the filter shell to move up and down periodically when rotating, thus avoiding the problem of filter impurities clogging the filter pores inside the filter shell.

[0013] The present invention has the following beneficial effects: 1. This invention achieves filtration of the water to be treated by setting a water distributor and a filter structure at the outlet of the water distributor, reducing the impact of impurities in the water on the filter media and extending the service life of the filter media. At the same time, setting the water distributor as a ring structure with a channel in the middle can also facilitate the backwashing of the filter media and ensure that impurities can be discharged normally.

[0014] 2. This invention enables preliminary filtration of impurities in water by setting a filter shell at the water inlet pipe. At the same time, the filter shell is set as a movable sleeve structure and a float is set on its outside. When the device is backwashed, the filter shell floats up and the drain port of the sleeve pipe overlaps, which facilitates the discharge of impurities.

[0015] 3. By setting the internal cavity of the water distributor to an arc-shaped structure, the interaction force between the liquid and the inner wall of the water distributor during backwashing is increased. Compared with the vertical inner wall of the tank, it can be cleaned more thoroughly, which can improve the backwashing effect of the sponge iron deaerator and avoid the problem of reaction products and trapped impurities depositing on the inner wall of the tank. Attached Figure Description

[0016] Figure 1 A schematic diagram of the overall structure of the invention; Figure 2 This is a cross-sectional structural diagram of the present invention; Figure 3 This is a partial cross-sectional structural diagram of the present invention; Figure 4 For the present invention Figure 3 A magnified structural diagram of point A in the middle.

[0017] In the diagram: 1. Tank; 2. Water distributor; 21. Filter plate; 22. Sewage discharge chamber; 3. Sleeve; 31. Sewage discharge port I; 4. Filter shell; 41. Float; 5. Water collector; 6. Drain pipe; 7. Water inlet pipe; 71. Sewage discharge port II; 8. Slow speed motor; 81. Rotating shaft; 9. Filter media. Detailed Implementation

[0018] 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.

[0019] Please see Figure 1 A normal-temperature filter-type sponge iron deaerator includes a tank 1. The top and bottom of the tank 1 are connected to an inlet pipe 7 and a drain pipe 6, respectively. The tank 1 contains filter media 9, the core component of which is activated iron. The filter media 9 has a sponge-like, porous structure, and deoxygenates by reacting the iron with dissolved oxygen in the water to form ferric hydroxide precipitate. A slow-speed motor 8 is installed on the top of the tank 1. Any commercially available standard model of slow-speed motor 8 that meets the usage requirements is acceptable. (See reference...) Figure 2The output shaft of the slow-speed motor 8 is connected to a rotating shaft 81, which is located inside the tank 1 and coaxial with the tank 1. A water distributor 2 is connected to the outside of the rotating shaft 81. By setting the water distributor 2, the water to be treated can reach the filter media 9 through the water distributor 2, which can avoid the problem of dirt adhesion caused by the water directly contacting the inner wall of the tank. At the same time, the arc-shaped structure of the water distributor 2 can make the interaction force between the dirt on the inner wall of the water distributor 2 and the water flow larger during backwashing, which is more conducive to the discharge of dirt and improves the working efficiency of backwashing. The water distributor 2 is located above the filter media 9.

[0020] Please see Figure 2 The water distributor 2 has a ring structure and a flared opening at the top to facilitate water flow. A filter plate 21 is installed at the bottom of the water distributor 2, and the bottom of the filter plate 21 has an arc-shaped structure. The overall cross-section of the water distributor 2 is an "eight" shape, which can increase the filtration area and also prevent impurities from being retained in the reverse direction during backwashing. The bottom diameter of the water distributor 2 corresponds to the cylinder diameter of the tank 1, which can achieve the filtration effect so that impurities can be retained inside the water distributor 2, reducing the contamination and wear of impurities on the filter media 9. A drain chamber 22 is provided in the middle of the water distributor 2. The bottom end of the drain chamber 22 facing the filter media 9 has a flared structure to facilitate the discharge of impurities in the filter media 9 during subsequent backwashing. The inner side of the drain chamber 22 is connected to the bottom end of the rotating shaft 81. By rotating the water distributor 2, the water flow can be evenly distributed, avoiding the problem of uneven utilization of the filter media 9 and facilitating the stable operation of the filter media 9.

[0021] Please see Figure 3-4 When the slow-speed motor 8 is working, it drives the water distributor 2 to rotate, using centrifugal force to promote uniform water distribution. The bottom outlet of the water inlet pipe 7 is located above the flared top of the water distributor 2. A drain port II71 is provided on the side where the water inlet pipe 7 connects to the tank body 1 for discharging impurities during backwashing. A sleeve 3 is fitted onto the bottom of the water inlet pipe 7, and a filter shell 4 is connected to the bottom of the sleeve 3. The top of the sleeve 3 is sealed to the inner wall of the water inlet pipe 7 through a rubber membrane. Several filter holes are provided at the bottom of the filter shell 4, and a float 41 is connected to the outside of the filter shell 4. The buoyancy of the float 41 in the water is greater than that of the filter shell 4. The overall weight of the sleeve 3 is such that a drain port I31 is provided on one side of the bottom of the sleeve 3. During backwashing, the filter shell 4 and the sleeve 3 move upward under the buoyancy of the float 41, so that the drain port I31 coincides with the drain port II71, which can ensure the normal discharge of dirt. In addition, the filter hole diameter of the filter plate 21 is smaller than or equal to the filter hole diameter of the filter shell 4. Through the cooperation of the filter shell 4 and the water distributor 2, the water can be initially filtered, reducing the impurities entering the filter media 9, reducing the wear of the filter media 9 by impurities, and helping to extend the service life of the filter media 9.

[0022] Please see Figure 2A water collector 5 is installed below the filter media 9. The top of the water collector 5 is flared, and the diameter of the top of the water collector 5 corresponds to the diameter of the inner wall of the tank 1. It can collect water treated by the filter media 9. The bottom of the water collector 5 is connected to the drain pipe 6. A protrusion is connected to the outside of the rotating shaft 81. When the rotating shaft 81 rotates, the protrusion contacts the bottom of the filter shell 4 and exerts pressure on the filter shell 4. This allows the rotating shaft 81 to drive the filter shell 4 to move up and down periodically when it rotates, thus avoiding the problem of filter impurities clogging the filter holes inside the filter shell 4 and ensuring the normal working efficiency of the filter shell 4.

[0023] The working principle of the method of using this invention is as follows: Water to be treated enters tank 1 through inlet pipe 7. A slow-speed motor 8 drives rotating shaft 81, which in turn rotates water distributor 2. After passing through sleeve 3, the water enters water distributor 2 through filter shell 4. Filter shell 4 and filter plate 21 perform preliminary filtration. The filtered water, as water distributor 2 rotates, falls evenly onto filter media 9, reacts with the filter media 9 to remove oxygen, and then falls onto water collector 5 for collection and discharge through drain pipe 6. During regular daily backwashing, high-pressure water of a specified specification flows from the drain pipe... Water is introduced into tank 1, which is filled with water. The buoyancy of float 41 causes sleeve 3 and filter shell 4 to float, and the drain outlet I31 and drain outlet II71 eventually overlap. The impurities in filter media 9 and water distributor 2 are discharged from drain chamber 22 to drain outlet II71 and then discharged through inlet pipe 7. At the same time, the impurities collected in filter shell 4 are also discharged from inlet pipe 7 with the water flow. The water flow also acts on the inner wall of water distributor 2, causing the impurities attached to the inner wall of water distributor 2 to be discharged.

[0024] 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.

[0025] 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 room temperature filter-type sponge iron deaerator, comprising a tank (1), wherein the top and bottom of the tank (1) are respectively connected to an inlet pipe (7) and a drain pipe (6), and the tank (1) is provided with filter media (9), characterized in that: A slow motor (8) is installed on the top of the tank (1). The output shaft of the slow motor (8) is connected to a rotating shaft (81), and the rotating shaft (81) is located inside the tank (1) and coaxial with the tank (1). A water distributor (2) is connected to the outside of the rotating shaft (81), and the water distributor (2) is located above the filter media (9). A sleeve (3) is sleeved at the bottom end of the water inlet pipe (7), and a filter shell (4) is connected to the bottom of the sleeve (3). The water distributor (2) has a ring structure, and the top of the water distributor (2) is provided with an flared opening. The bottom of the water distributor (2) is provided with a filter plate (21). The bottom diameter of the water distributor (2) corresponds to the cylinder diameter of the tank (1). The middle part of the water distributor (2) is provided with a sewage discharge chamber (22). The bottom of the sewage discharge chamber (22) facing the filter material (9) has a flared opening structure. The inner side of the sewage discharge chamber (22) is connected to the bottom end of the rotating shaft (81). The bottom outlet of the water inlet pipe (7) is located above the flared top of the water distributor (2), and a drain outlet II (71) is provided on the side where the water inlet pipe (7) connects to the tank (1). The top of the sleeve (3) is sealed to the inner wall of the water inlet pipe (7) through a rubber membrane. A drain outlet I (31) is provided on one side of the bottom of the sleeve (3). When the sleeve (3) moves upward, the drain outlet I (31) coincides with the drain outlet II (71). The bottom of the filter shell (4) is provided with several filter holes, and a float (41) is connected to the outside of the filter shell (4). The buoyancy of the float (41) in the water is greater than the weight of the filter shell (4) and the sleeve (3) as a whole. The core component of the filter material (9) is active iron, which has a sponge-like porous structure.

2. The ambient temperature filter-type sponge iron deaerator according to claim 1, characterized in that: A water collector (5) is provided below the filter media (9). The top of the water collector (5) is a flared structure, and the diameter of the top of the water collector (5) corresponds to the diameter of the inner wall of the tank (1). The bottom of the water collector (5) is connected to the drain pipe (6).

3. The ambient temperature filter-type sponge iron deaerator according to claim 1, characterized in that: A protrusion is connected to the outside of the rotating shaft (81). The protrusion contacts the bottom of the filter shell (4) and exerts pressure on the filter shell (4) when the rotating shaft (81) rotates.

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