Energy-saving and environment-friendly deaerator

Abstract

Relates to the field of deaerators, and discloses an energy-saving and environment-friendly deaerator, which comprises a water tank, a deoxidizing tower arranged at the upper end of the water tank and an exhaust port arranged on the deoxidizing tower and used for exhausting steam, and further comprises a filtering unit arranged on one side, far away from the deoxidizing tower, of the exhaust port and used for filtering the deoxidizing tower. The filter is used for filtering impurities in steam; the filtering unit comprises a filtering device which is arranged on the exhaust port and is used for purifying and deodorizing the steam; the cleaning device is arranged on the filtering device and used for cleaning impurities on the filtering device, the filtering net can drive the cleaning device to rotate in the moving process, the impurities attached to the filtering net are cleaned, the cleanliness of the filtering net is kept, and the steam purification and deodorization efficiency of the filtering device is improved. And the cleanliness of the steam is kept.

Description

Technical Field

[0001] The utility model relates to the technical field of deaerators, in particular to an energy-saving and environment-friendly deaerator. Background Art

[0002] The deaerator is one of the important auxiliary equipment in the power plant. In the feed water heat recovery system, the deaerator is generally located in the middle position after the outlet of the low-pressure heater and before the inlet of the high-pressure heater. In order to improve the thermal efficiency of the unit, the outlet water of the low-pressure heater enters the deaerator at the saturated temperature under the working pressure for deoxygenation. The deoxygenated feed water is boosted by the feed water pump and enters the high-pressure heater to flow to the boiler economizer; the deaerator generates a lot of heat during operation, and the heat generated during deoxygenation can be recycled and reused, which is beneficial to energy saving and environmental protection.

[0003] The existing equipment has the following disadvantages: the water vapor received by the previous steam recovery and utilization device is mixed with particulate impurities and a pungent metallic smell. When in use, the particulate matter can easily clog the equipment, affecting the use of the equipment, and the metallic smell can easily cause harm to the human body when inhaled into the lungs.

[0004] Therefore, the present application proposes an energy-saving and environmentally friendly deaerator to solve the above-mentioned problems. Utility Model Content

[0005] The utility model aims to provide an energy-saving and environmentally friendly deaerator to solve the above-mentioned problems that particulate matter is easy to clog the equipment during use, affecting the use of the equipment, and the metal smell is easy to cause harm to the human body when inhaled into the lungs.

[0006] To achieve the above object, the utility model provides the following technical solution: an energy-saving and environmentally friendly deaerator, comprising a water tank, a deaeration tower arranged at the upper end of the water tank, and an exhaust port for discharging steam arranged on the deaeration tower, and also comprising:

[0007] A filtering unit is arranged on a side of the exhaust port away from the deaerator tower, and is used to process particulate matter and metallic odor in the steam;

[0008] The filtering unit comprises:

[0009] A filtering device, arranged on the exhaust port, for purifying and deodorizing the steam;

[0010] The cleaning device is arranged on the filtering device and is used for cleaning impurities on the filtering device.

[0011] Wherein, the filtering device includes a processing box fixed on the exhaust port, a filter screen slidably arranged inside the processing box, and a supporting device arranged inside the processing box and used to support the filter screen, and the cleaning device is connected to the filter screen.

[0012] Among them, the supporting device includes a supporting rod fixed on the side of the processing box close to the exhaust port and a limiting block arranged on the side of the supporting rod away from the exhaust port, the filter screen is slidably mounted on the supporting rod, and the supporting rod is located between the filter screen and the limiting block and is provided with an elastic member.

[0013] Wherein, the cleaning device includes a rotating shaft rotatably arranged on the filter screen, a power member arranged on the side of the rotating shaft away from the exhaust port, and a cleaning member arranged on the side of the rotating shaft close to the exhaust port, and the cleaning member is connected to the filter screen.

[0014] Wherein, the power member comprises a helical rack fixed on the inner wall of the processing box and a helical gear fixed on the rotating shaft, and the helical gear is threadedly connected to the helical rack.

[0015] Wherein, the cleaning member comprises a mounting block arranged on the rotating shaft and a cleaning plate fixed on the mounting block, and the cleaning plate is connected to the filter screen.

[0016] Wherein, a brush plate for cleaning impurities on the filter screen is arranged on one side of the cleaning plate close to the filter screen.

[0017] Compared with the prior art, the beneficial effects of the utility model are:

[0018] When the deaerator of the utility model is working, steam is discharged from the exhaust port on the deaerator tower and then filtered through the filtering device, so that impurities in the steam can be filtered and the metallic smell in the steam can be removed. The water vapor is discharged from the exhaust port into the interior of the processing box to impact the filter screen on the supporting device. The filter screen moves on the supporting device, and the filter screen drives the cleaning device to rotate during the movement, so as to clean the impurities attached to the filter screen and maintain the cleanliness of the filter screen, thereby improving the purification efficiency of the filter device for the steam and maintaining the cleanliness of the steam. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 This is a schematic diagram of the main structure in one embodiment of the utility model;

[0020] Figure 2 It is a schematic diagram of the structure of a side view in one embodiment of the utility model;

[0021] Figure 3 This is a schematic structural diagram of a cross-section of a processing box in one embodiment of the utility model;

[0022] Figure 4 This is a schematic diagram of a partial cross-section of a processing box in one embodiment of the utility model;

[0023] Figure 5This is a schematic diagram of the structure of the connection between the cleaning device and the filter screen in one embodiment of the utility model;

[0024] Figure 6 This is a schematic diagram of the structure of the explosion of the cleaning device in one embodiment of the utility model;

[0025] Figure 7 for Figure 4 Schematic diagram of the structure with the A part in the middle enlarged.

[0026] In the figure: 1. water tank; 11. bracket; 2. deaerator; 21. safety valve; 3. exhaust port; 4. filter unit; 41. treatment box; 42. filter screen; 43. supporting device; 431. supporting rod; 432. limit block; 433. elastic member; 44. cleaning device; 441. power member; 4411. bevel gear; 4412. bevel rack; 442. rotating shaft; 443. cleaning member; 4431. mounting block; 4432. cleaning plate; 4433. brush plate; 5. exhaust pipe. DETAILED DESCRIPTION

[0027] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0028] See also Figure 1-7 The utility model provides a technical solution: an energy-saving and environmentally friendly deaerator, comprising a water tank 1, a deaerator tower 2 arranged at the upper end of the water tank 1, and an exhaust port 3 for discharging steam arranged on the deaerator tower 2, a safety valve 21 for safety protection is arranged on the deaerator tower 2, a bracket 11 for supporting the water tank 1 is arranged at the lower end of the water tank 1, and an exhaust pipe 5 is arranged on the side of the treatment box 41 away from the exhaust port 3, and also includes:

[0029] The filter unit 4 is arranged on the side of the exhaust port 3 away from the deaerator tower 2, and is used to process particulate matter and metallic odor in the steam;

[0030] The filtering unit 4 comprises:

[0031] A filtering device, arranged on the exhaust port 3, for purifying and deodorizing the steam;

[0032] The cleaning device 44 is arranged on the filtering device and is used for cleaning impurities on the filtering device.

[0033] It should be noted that, when the deaerator is working, steam is discharged from the exhaust port 3 on the deaerator tower 2, and then filtered through the filtering device, which can filter out impurities in the steam and deodorize the steam. When the filtering device is impacted by the steam, it will drive the cleaning device 44 to move. The cleaning device 44 cleans the impurities on the filtering device during the rotation process, thereby improving the purification and deodorization efficiency of the filtering device on the steam and maintaining the cleanliness of the steam.

[0034] In one embodiment, the filtering device includes a processing box 41 fixed on the exhaust port 3, a filter screen 42 slidably arranged inside the processing box 41, and a supporting device 43 arranged inside the processing box 41 and used to support the filter screen 42. The cleaning device 44 is connected to the filter screen 42.

[0035] With this design, water vapor is discharged from the exhaust port 3 into the interior of the treatment box 41, impacting the filter screen 42 on the support device 43. The filter screen 42 moves on the support device 43, and the filter screen 42 drives the cleaning device 44 to rotate during the movement, thereby cleaning impurities attached to the filter screen 42, maintaining the cleanliness of the filter screen 42, and improving the filtering efficiency of steam.

[0036] In one embodiment, the support device 43 includes a support rod 431 fixed on the side of the processing box 41 close to the exhaust port 3 and a limit block 432 arranged on the side of the support rod 431 away from the exhaust port 3. The filter screen 42 is slidably mounted on the support rod 431. The support rod 431 is located between the filter screen 42 and the limit block 432 and is provided with an elastic member 433. The elastic member 433 is made of a spring or an elastic pad.

[0037] With such a design, when the filter screen 42 is impacted by steam, it will slide on the support rod 431, and when the filter screen 42 moves to the side away from the exhaust port 3, it will squeeze the elastic member 433. When the pressure of the steam applied to the filter screen 42 changes, the elastic member 433 will drive the filter screen 42 to reciprocate on the support rod 431, and when the filter screen 42 moves, the cleaning device 44 will move with the filter screen 42.

[0038] In one embodiment, the cleaning device 44 includes a rotating shaft 442 rotatably disposed on the filter 42, a power member 441 disposed on the side of the rotating shaft 442 away from the exhaust port 3, and a cleaning member 443 disposed on the side of the rotating shaft 442 close to the exhaust port 3, and the cleaning member 443 is connected to the filter 42.

[0039] With this design, the rotating shaft 442 is rotatably mounted on the filter 42 through a bearing. When the filter 42 moves, the rotating shaft 442 is driven to move together. The rotating shaft 442 drives the power part 441 to move. When the power part 441 moves, the rotating shaft 442 is driven to rotate, and then the rotating shaft 442 drives the cleaning part 443 to rotate. The cleaning part 443 can clean the impurities attached to the filter 42. The cleaned impurities fall into the interior of the processing box 41. When the device has been used for a period of time, the processing box 41 needs to be disassembled to clean the impurities in the processing box 41.

[0040] In one embodiment, the power member 441 includes a bevel rack 4412 fixed on the inner wall of the processing box 41 and a bevel gear 4411 fixed on the rotating shaft 442 , and the bevel gear 4411 is threadedly connected to the bevel rack 4412 .

[0041] With such a design, when the rotating shaft 442 drives the bevel gear 4411 to move toward the bevel rack 4412 , the bevel gear 4411 meshes with the bevel rack 4412 , thereby causing the bevel gear 4411 to drive the rotating shaft 442 to rotate.

[0042] In one embodiment, the cleaning member 443 includes a mounting block 4431 disposed on the rotating shaft 442 and a cleaning plate 4432 fixed on the mounting block 4431, the cleaning plate 4432 is connected to the filter screen 42, and the mounting block 4431 is arranged in an arc shape on one side close to the exhaust port 3, so that when the mounting block 4431 is impacted by steam, the damage to the mounting block 4431 caused by steam can be reduced.

[0043] With this design, the rotating shaft 442 drives the mounting block 4431 to rotate, thereby driving the cleaning plate 4432 to rotate. The cleaning plate 4432 contacts the filter screen 42 to clean the impurities attached to the filter screen 42, thereby improving the filtering efficiency of the filter screen 42 for impurities in the steam.

[0044] In one embodiment, a brush plate 4433 for cleaning impurities on the filter screen 42 is disposed on one side of the cleaning plate 4432 close to the filter screen 42 .

[0045] In this design, the filter 42 is made of activated carbon, and the brush plate 4433 is triangular in design or is made of a brush, which can clean the impurities remaining in the filter 42 and effectively remove dust and deodorize the steam.

Claims

1. An energy-saving and environmentally friendly deaerator, comprising a water tank (1), a deaerator tower (2) arranged at the upper end of the water tank (1), and an exhaust port (3) for discharging steam arranged on the deaerator tower (2), characterized in that: Also includes: A filter unit (4) is arranged on a side of the exhaust port (3) away from the deoxidation tower (2) and is used to process particulate matter and metallic odor in the steam; The filtering unit (4) comprises: A filtering device, arranged on the exhaust port (3), for purifying and deodorizing the steam; A cleaning device (44) is arranged on the filtering device and is used to clean impurities on the filtering device.

2. The energy-saving and environmentally friendly deaerator according to claim 1, characterized in that: The filtering device comprises a processing box (41) fixed on the exhaust port (3), a filter screen (42) slidably arranged inside the processing box (41), and a supporting device (43) arranged inside the processing box (41) and used to support the filter screen (42); the cleaning device (44) is connected to the filter screen (42).

3. The energy-saving and environmentally friendly deaerator according to claim 2, characterized in that: The supporting device (43) comprises a supporting rod (431) fixed to a side of the processing box (41) close to the exhaust port (3) and a limiting block (432) arranged on a side of the supporting rod (431) away from the exhaust port (3); the filter screen (42) is slidably mounted on the supporting rod (431); and an elastic member (433) is mounted on the supporting rod (431) between the filter screen (42) and the limiting block (432).

4. The energy-saving and environmentally friendly deaerator according to claim 2, characterized in that: The cleaning device (44) comprises a rotating shaft (442) rotatably arranged on the filter screen (42), a power member (441) arranged on a side of the rotating shaft (442) away from the exhaust port (3), and a cleaning member (443) arranged on a side of the rotating shaft (442) close to the exhaust port (3); the cleaning member (443) is connected to the filter screen (42).

5. The energy-saving and environmentally friendly deaerator according to claim 4, characterized in that: The power member (441) comprises a bevel rack (4412) fixed on the inner wall of the processing box (41) and a bevel gear (4411) fixed on the rotating shaft (442), and the bevel gear (4411) is threadedly connected to the bevel rack (4412).

6. The energy-saving and environmentally friendly deaerator according to claim 5, characterized in that: The cleaning member (443) comprises a mounting block (4431) arranged on the rotating shaft (442) and a cleaning plate (4432) fixed on the mounting block (4431), and the cleaning plate (4432) is connected to the filter screen (42).

7. The energy-saving and environmentally friendly deaerator according to claim 6, characterized in that: A brush plate (4433) for cleaning impurities on the filter screen (42) is provided on one side of the cleaning plate (4432) close to the filter screen (42).

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