A spray type deaerator

Abstract

The utility model relates to the technical field of oxygen -removing device, concretely relates to a spray type oxygen -removing device, including the casing, the casing top is equipped with exhaust pipe and water inlet pipe, is equipped with the constant pressure valve on the exhaust pipe, the water inlet pipe is connected with the annular pipe through the water delivery pipe, is equipped with the shower nozzle on the annular pipe outside, is equipped with the supporting rod corresponding with the shower nozzle on the water delivery pipe outside, the supporting rod one end is connected with the blocking piece, the blocking piece is round platform shape setting, and its ring diameter small one end vertical downward towards the shower nozzle setting, the inside of casing is located the below of annular pipe and is equipped with the retention net and the air inlet pipe from top to bottom in proper order, the air inlet pipe is placed in the casing and is evenly equipped with the gas outlet on one end, the casing bottom is connected with the drain pipe, through above -mentioned structure, the water mist formed by the water body that the shower nozzle hole of shower nozzle sprays contacts with the inclined surface of blocking piece to make the water mist break into smaller droplet, simultaneously, the inclined surface of blocking piece will change the moving direction of water mist, makes the water mist present fan -shaped diffusion, can make the water mist more quickly spread in the casing.

Description

Technical Field

[0001] This utility model relates to the field of deaerator technology, specifically to a spray-type deaerator. Background Technology

[0002] A spray deaerator is a key piece of equipment in a boiler feedwater system. Its core function is to remove dissolved oxygen and other corrosive gases from the water using physical principles, thus protecting the boiler system from corrosion. The specific working process is as follows: it atomizes low-temperature feedwater into fine droplets through spray nozzles, which are then thoroughly mixed with the introduced heating steam. This process rapidly heats the water to its saturation temperature, reducing oxygen solubility to zero; it also significantly increases the contact area between the water and steam, promoting the efficient escape of dissolved oxygen. Finally, the escaped gases are discharged from the system, while the deoxygenated, purified hot water is delivered to the boiler, ensuring its safe, economical, and sustainable operation.

[0003] Existing deaerator spray nozzles typically use high pressure to spray condensate at high speed from micro-holes in the nozzle, breaking the condensate into small droplets to form a water mist. However, when the water is sprayed through the micro-holes, most of the water mist diffuses along the direction of the micro-holes, preventing the water mist from spreading well throughout the entire deaeration chamber and reducing the utilization rate of the high-temperature water vapor in the deaeration chamber. Utility Model Content

[0004] The purpose of this invention is to provide a spray-type deaerator that solves the problem in the prior art where, when water is sprayed through micropores, most of the water mist formed diffuses along the direction of the micropores, resulting in the water mist not being able to diffuse well throughout the deaeration chamber and reducing the utilization rate of high-temperature water vapor in the deaeration chamber.

[0005] To solve the above-mentioned technical problems, the present invention adopts the following technical solution: A spray-type deaerator includes a housing, an exhaust pipe and a water inlet pipe at the top of the housing, a constant pressure valve on the exhaust pipe, and an annular pipe inside the housing connected to the water inlet pipe via a water supply pipe. A ring array of nozzles is arranged on the outer side of the annular pipe, and a support rod corresponding to each nozzle is arranged in a ring array on the outer side of the water supply pipe. A blocking block, shaped like a frustum, is connected to the end of each support rod away from the water supply pipe and is vertically positioned above the corresponding nozzle. The smaller diameter end of the blocking block faces downwards towards the nozzle. Inside the housing, below the annular pipe, a retention mesh and an air inlet pipe are arranged sequentially from top to bottom. Air outlets are evenly distributed on the end of the air inlet pipe inside the housing. A drain pipe is connected to the bottom of the housing.

[0006] A further technical solution is that the bottom end of the blocking block is connected to a needle-shaped rod that is vertically aligned with the nozzle hole of the nozzle head. The end of the rod away from the water supply pipe has a sliding hole. A vertically arranged sliding rod is slidably connected to the sliding hole. A limiting block is provided at the top of the sliding rod. The bottom end of the sliding rod is fixedly connected to the blocking block so that the needle-shaped rod can slide through the nozzle hole of the nozzle head.

[0007] A further technical solution is to surround a guide ring at one end of the nozzle near its nozzle hole. The inner diameter of the guide ring decreases from top to bottom and is arranged in the form of a hollow frustum, with its bottom end surrounding the nozzle hole of the nozzle.

[0008] A further technical solution is that the top end of the water supply pipe rotates out of the housing through a sealed bearing and is connected to the water inlet pipe through a rotary joint. A transmission gear is fitted on the outer side of the top end of the water supply pipe, and a motor is installed on the top side of the housing. The output shaft of the motor is equipped with a drive gear that meshes with the transmission gear.

[0009] A further technical solution is to have the intake pipe arranged in a spiral structure at one end inside the housing.

[0010] Compared with the prior art, the beneficial effects of this utility model are: In this invention, high-temperature water vapor is sprayed into the housing through the air inlet and outlet. Water is then transported to the annular pipe through the water inlet and outlet pipes. The water inside the annular pipe is sprayed out through the nozzle orifice of the nozzle. The water mist formed by the sprayed water mist has an impact force. The impact force of the water mist comes into contact with the inclined surface of the blocking block, causing the water mist to break into smaller droplets. At the same time, the inclined surface on one side of the blocking block changes the movement direction of the water mist, causing the water mist to spread in a fan shape. This allows the water mist to spread more quickly inside the housing, thus fully contacting and heating the high-temperature water vapor to achieve deoxygenation. This avoids the situation where most of the water mist formed when the water is sprayed out through the micropores spreads along the direction of the micropores, resulting in the water mist not being able to spread well to the entire interior of the housing, reducing the utilization rate of the high-temperature water vapor inside the housing. Attached Figure Description

[0011] Figure 1 This is a cross-sectional structural diagram of a spray-type deaerator according to the present invention.

[0012] Figure 2 This utility model Figure 2 Enlarged structural diagram at point A in the middle.

[0013] Icons: 1-Shell, 2-Exhaust pipe, 3-Water inlet pipe, 4-Constant pressure valve, 5-Water supply pipe, 6-Annular pipe, 7-Nozzle, 8-Support rod, 9-Blocking block, 10-Retention net, 11-Air inlet pipe, 12-Air outlet, 13-Drain pipe, 14-Needle rod, 15-Sliding hole, 16-Sliding rod, 17-Limiting block, 18-Guide ring, 19-Sealed bearing, 20-Rotary joint, 21-Transmission gear, 22-Motor, 23-Drive gear. Detailed Implementation

[0014] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present utility model and are not intended to limit the present utility model.

[0015] All electrical components involved in this application are prior art. Those skilled in the art understand their connection methods. With the help of those skilled in the art, all electrical components in this application and their compatible power supplies can be connected by wires. According to the actual situation, a suitable controller can be selected to meet the control requirements. For specific connections and control sequences, please refer to the description below. The electrical connection between each electrical component is completed in the order of operation. The detailed connection methods are well known in the art. The following mainly introduces the working principle and process, and will not describe the electrical control.

[0016] Example 1 Reference Figure 1 , Figure 2 This utility model discloses a spray-type deaerator, comprising a housing 1, an exhaust pipe 2 and a water inlet pipe 3 at the top of the housing 1, a constant pressure valve 4 on the exhaust pipe 2, and a water inlet pipe 3 connected to an annular pipe 6 inside the housing 1 via a water supply pipe 5. The water supply pipe 5 is L-shaped, with its horizontal section connected to the annular pipe 6 and its vertical section's central axis aligned with the center of the annular pipe 6 and coincident with the vertical central axis of the housing 1. Spray nozzles 7 are arranged in a ring array on the outer side of the annular pipe 6. The side is arranged in a ring array with support rods 8 corresponding to the nozzles 7 one by one. The end of the support rod 8 away from the water supply pipe 5 is connected to a blocking block 9 that is vertically placed above the corresponding nozzle 7. The blocking block 9 is shaped like a frustum, and the end with the smaller ring diameter is vertically downward and facing the nozzle 7. Inside the housing 1, below the annular pipe 6, there are a retention net 10 and an air inlet pipe 11 arranged from top to bottom. The end of the air inlet pipe 11 inside the housing 1 has air outlets 12 evenly arranged. The bottom of the housing 1 is connected to a drain pipe 13.

[0017] In this embodiment, during use, high-temperature water vapor is sprayed into the housing 1 through the air inlet pipe 11 and the air outlet 12. Water is then transported to the annular pipe 6 through the water inlet pipe 3 and the water delivery pipe 5. The water inside the annular pipe 6 is sprayed out through the nozzle orifice of the nozzle 7. The water mist formed by the sprayed water mist has an impact force. This impact force water mist contacts the inclined surface of the blocking block 9, causing the water mist to break into smaller droplets. Simultaneously, the inclined surface on one side of the blocking block 9 changes the direction of the water mist's movement, causing the water mist to spread in a fan shape. This allows the water mist to spread more quickly within the shell 1, thus fully contacting and heating with the high-temperature water vapor to achieve deoxygenation. This avoids the situation where most of the water mist formed when the water is sprayed out through the micropores diffuses along the direction of the micropores, preventing the water mist from spreading well into the entire interior of the shell 1 and reducing the utilization rate of the high-temperature water vapor inside the shell 1. The water mist breaks into smaller droplets and passes through the retention net to extend its time in the shell, thereby ensuring that the water is fully heated for deoxygenation. Finally, the deoxygenated water is discharged through the drain pipe 13.

[0018] Example 2 Based on Example 1, referring to Figure 1 , Figure 2 The bottom end of the blocking block 9 is connected to a needle-shaped rod 14 that is vertically aligned with the nozzle hole of the nozzle 7. The end of the support rod 8 away from the water supply pipe 5 is provided with a sliding hole 15. The sliding hole 15 is slidably connected to a vertically arranged sliding rod 16. The top end of the sliding rod 16 is provided with a limiting block 17. The bottom end of the sliding rod 16 is fixedly connected to the blocking block 9 so that the needle-shaped rod 14 can slide through the nozzle hole of the nozzle 7. When the device is not in use, under the action of the weight of the sliding rod 16, the limiting block 17, the blocking block 9 and the needle-shaped rod 14, the sliding rod 16 slides to the lowest end, the limiting block 17 is in contact with the top side of the support rod 8, and the bottom end of the needle-shaped rod 14 passes through the nozzle hole of the nozzle 7.

[0019] In this embodiment, during use, the inlet pipe 3 and the outlet pipe 5 transport water to the annular pipe 6. The water inside the annular pipe 6, when ejected through the nozzle orifice of the nozzle 7, has an impact force, which pushes against the needle-shaped rod 14 placed inside the nozzle orifice of the nozzle 7. The water pushes the needle-shaped rod 14 out of the nozzle orifice of the nozzle 7, causing the water to spray out of the nozzle orifice of the nozzle 7 to form a water mist. The water mist formed by the water sprayed from the nozzle orifice of the nozzle 7 has an impact force, preventing the slide rod 16 from sliding to its lowest point and causing the needle-shaped rod 14 to remain inside the nozzle orifice of the nozzle 7 under the influence of the sliding rod 16, the limiting block 17, the blocking block 9, and the weight of the needle-shaped rod 14. This would prevent the water from smoothly spraying out of the nozzle orifice of the nozzle 7. Simultaneously, the water mist formed by the water sprayed from the nozzle orifice of the nozzle 7 contacts the inclined surface of the blocking block 9, thereby… This causes the water mist to break into smaller droplets. At the same time, the inclined surface on one side of the blocking block 9 changes the direction of the water mist's movement, causing it to spread in a fan shape. This allows the water mist to spread more quickly within the housing 1. When the nozzle orifice of the nozzle 7 becomes clogged, the water mist formed by the spray from the nozzle orifice of the nozzle 7 has less force. When the force is less than the weight of the slide rod 16, the limiting block 17, the blocking block 9, and the needle rod 14, the slide rod 16 slides and drives the lower end of the needle rod 14 into the nozzle orifice of the nozzle 7, thereby cleaning the nozzle orifice of the nozzle 7. At the same time, after the deoxygenation work is completed, under the action of the weight of the slide rod 16, the limiting block 17, the blocking block 9, and the needle rod 14, the bottom end of the needle rod 14 slides through the nozzle orifice of the nozzle 7, which also plays a cleaning role.

[0020] As a preferred embodiment, refer to Figure 1 , Figure 2 A guide ring 18 is provided around one end of the nozzle 7 near its nozzle hole. The inner diameter of the guide ring 18 decreases from top to bottom and is set as a hollow frustum. Its bottom end surrounds the nozzle hole of the nozzle 7.

[0021] Specifically, by setting the guide ring 18, when the slide rod 16 slides and drives the bottom end of the needle rod 14 to move, the guide ring 18 can guide the needle rod 14 to ensure that the needle rod 14 stably passes through the nozzle hole of the nozzle 7.

[0022] Example 3 Based on Example 1, referring to Figure 1 , Figure 2 The top end of the water supply pipe 5 rotates out of the housing 1 through the sealed bearing 19 and is connected to the water inlet pipe 3 through the rotary joint 20. A transmission gear 21 is sleeved on the outer side of the top end of the water supply pipe 5. A motor 22 is provided on the top side of the housing 1. The output shaft of the motor 22 is provided with a drive gear 23 that meshes with the transmission gear 21. The motor 22 can be a servo motor 22.

[0023] In this embodiment, during use, the motor 22 drives the drive gear 23 to rotate, the drive gear 23 meshes with the transmission gear 21 to drive the transmission gear 21 to rotate, the transmission gear 21 drives the water pipe 5 to rotate, and finally drives the annular pipe 6 to rotate, further increasing the diffusion range of the water.

[0024] Example 4 Based on Example 1, referring to Figure 1 , Figure 2 The intake pipe 11 is arranged in a spiral structure at one end inside the housing 1. Specifically, by arranging the intake pipe 11 in a spiral structure, high-temperature water vapor can be evenly diffused into the housing 1.

[0025] Although the present invention has been described herein with reference to several illustrative embodiments, it should be understood that many other modifications and implementations can be devised by those skilled in the art, which will fall within the scope and spirit of the principles disclosed herein. More specifically, various variations and modifications can be made to the components and / or layout of the subject matter combination within the scope of the disclosure, drawings, and claims. Besides variations and modifications to the components and / or layout, other uses will be apparent to those skilled in the art.

Claims

1. A spray-type deaerator, comprising a housing (1), characterized in that: The top of the housing (1) is provided with an exhaust pipe (2) and a water inlet pipe (3). A constant pressure valve (4) is provided on the exhaust pipe (2). The water inlet pipe (3) is connected to an annular pipe (6) placed inside the housing (1) through a water supply pipe (5). A nozzle (7) is connected in a ring array on the outside of the annular pipe (6). A support rod (8) is arranged in a ring array on the outside of the water supply pipe (5) and is arranged in a ring array corresponding to the nozzle (7). The support rod (8) is located away from the water supply pipe (5). The end is connected to a blocking block (9) placed vertically above the corresponding nozzle (7). The blocking block (9) is shaped like a frustum, and the end with the smaller ring diameter is vertically downward facing the nozzle (7). Inside the housing (1), below the annular pipe (6), there is a retention net (10) and an air inlet pipe (11) arranged sequentially from top to bottom. The air inlet pipe (11) is evenly provided with an air outlet (12) at one end inside the housing (1). The bottom of the housing (1) is connected to a drain pipe (13).

2. The spray deaerator according to claim 1, characterized in that: The bottom end of the blocking block (9) is connected to a needle-shaped rod (14) that is vertically facing the nozzle hole of the nozzle (7). The end of the support rod (8) away from the water pipe (5) is provided with a sliding hole (15). The sliding hole (15) is slidably connected to a vertically arranged sliding rod (16). The top end of the sliding rod (16) is provided with a limiting block (17). The bottom end of the sliding rod (16) is fixedly connected to the blocking block (9) so that the needle-shaped rod (14) can slide through the nozzle hole of the nozzle (7).

3. A spray-type deaerator according to claim 2, characterized in that: The nozzle (7) has a guide ring (18) surrounding one end near its nozzle hole. The inner diameter of the guide ring (18) decreases from top to bottom and is arranged as a hollow frustum. Its bottom end surrounds the nozzle hole of the nozzle (7).

4. A spray-type deaerator according to claim 1, characterized in that: The top end of the water supply pipe (5) is rotated through the housing (1) via a sealed bearing (19) and connected to the water inlet pipe (3) via a rotary joint (20). A transmission gear (21) is sleeved on the outer side of the top end of the water supply pipe (5). A motor (22) is provided on the top side of the housing (1). An active gear (23) that meshes with the transmission gear (21) is provided on the output shaft of the motor (22).

5. A spray-type deaerator according to claim 1, characterized in that: The intake pipe (11) is arranged in a spiral structure at one end inside the housing (1).

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