Environment-friendly periodic blowdown flash tank

By introducing water level sensors and automatic dust scraping devices into the boiler's regular sewage expansion container, the problem of untimely elimination of water solutions and dirty adhesion of the inner wall is solved, and automatic sewage discharge and inner wall cleaning is achieved, which improves the environmental protection and convenience of boiler operation.

CN223294806UActive Publication Date: 2025-09-02SHANGYU LIANFENG PRESSURE VESSEL CO LTD
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Patent Information

Application Number
CN202422339098.5
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-09-25
Publication Date
2025-09-02
Estimated Expiration
2034-09-25

AI Technical Summary

Technical Problem

The existing boiler regular sewage expansion container lacks soda and water separation equipment, which causes the aqueous solution to be unable to be removed in time, and the inner wall of the inner tank body is prone to dirty attachment, so it needs to be cleaned regularly.

Method used

An environmentally friendly regular sewage expansion container is designed, equipped with a water level sensor, solenoid valve, drive part and automatic scavenging device in the tank body. The solenoid valve is controlled to open through the water level sensor, and the scavenging device is driven with the drive part to automatically scrape off and discharge dirty inside walls.

Benefits of technology

It realizes automatic scraping and discharge of dirty soil on the inner wall of the tank while discharged sewage, improving the environmental protection and convenience of boiler operation.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model discloses an environment-friendly periodic blowdown flash tank, and belongs to the field of flash tanks. The environment-friendly periodic blowdown flash tank comprises a tank body, a heat exchanger, a liquid inlet pipe, a gas outlet pipe and a blowdown pipe, a tank cavity is formed in the tank body; the electromagnetic valve is mounted in the blow-off pipe; the hollow plate is fixedly connected into the blow-off pipe; the main shaft is rotationally connected to the top wall of the hollowed-out plate. The connecting rod is fixedly connected to the main shaft; the arc-shaped brush plate is fixedly connected to one end of the connecting rod; the vertical brush plate is fixedly connected to the arc-shaped brush plate; the sweeping rod is fixedly connected to the main shaft; the water level sensor is fixedly connected to the inner wall of the tank cavity; the arc-shaped outer wall of the arc-shaped brush plate is in sliding contact with one part of the arc-shaped inner wall of the tank cavity, and the side wall of the vertical brush plate is in sliding contact with one part of the arc-shaped inner wall of the tank cavity; and the driving piece is arranged in the blow-off pipe. The environment-friendly periodic blowdown flash tank has the beneficial effects that dirt attached to the inner wall of the tank body can be automatically scraped off while sewage is discharged, and the dirt is discharged along the sewage at the same time.
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Description

Technical Field

[0001] The present application relates to the field of expanders, and in particular to an environmentally friendly periodic sewage discharge expander. Background Art

[0002] As a boiler auxiliary machine, the boiler expansion tank with regular sewage discharge is used to discharge the water slag, sediment and corrosion products at the bottom of the furnace to facilitate the normal operation of the boiler. However, the expansion tanks currently produced in China lack steam-water separation equipment and cannot discharge the aqueous solution in time. In addition, dirt is easily attached to the inner wall of the internal tank, and the inner wall of the tank needs to be cleaned regularly.

[0003] An environmentally friendly periodic sewage expansion container is now provided. Utility Model Content

[0004] The content of this application is used to briefly introduce concepts that will be described in detail in the detailed description section below. The content of this application is not intended to identify key features or essential features of the technical solution for which protection is sought, nor is it intended to limit the scope of the technical solution for which protection is sought.

[0005] In order to solve the technical problems mentioned in the above background technology section, some embodiments of the present application provide an environmentally friendly periodic sewage expansion tank, comprising: a tank body, a heat exchanger, a liquid inlet pipe, an air outlet pipe, and a sewage pipe;

[0006] It is characterized in that: a tank cavity is provided in the tank body;

[0007] Environmentally friendly periodic sewage expansion tanks also include:

[0008] Solenoid valve, installed in the sewage pipe;

[0009] The hollow plate is fixedly connected to the sewage pipe;

[0010] A main shaft, rotatably connected to the top wall of the hollow plate;

[0011] A connecting rod, fixedly connected to the main shaft;

[0012] The arc-shaped brush plate is fixedly connected to one end of the connecting rod;

[0013] The vertical brush plate is fixedly connected to the curved brush plate;

[0014] The sweeping rod is fixedly connected to the main shaft;

[0015] The water level sensor is fixedly connected to the inner wall of the tank cavity;

[0016] The arc-shaped outer wall of the arc-shaped brush plate is in sliding contact with a portion of the arc-shaped inner wall of the tank cavity, and the side wall of the vertical brush plate is in sliding contact with a portion of the arc-shaped inner wall of the tank cavity;

[0017] The driving member is arranged in the sewage pipe and is used to drive the main shaft to rotate.

[0018] Furthermore, the driving member includes:

[0019] A first bevel gear is fixedly connected to the main shaft;

[0020] Sealing ring, installed inside the pipe wall of the sewage pipe;

[0021] A drive shaft is inserted into the sealing ring and is rotatably connected to the sealing ring;

[0022] A second bevel gear is fixedly connected to one end of the drive shaft;

[0023] A driving motor is provided below the tank body;

[0024] The driving shaft is fixedly connected to the output shaft of the driving motor, and the second bevel gear is meshed with the first bevel gear.

[0025] Furthermore, the environmentally friendly regular sewage expansion container also includes:

[0026] There are multiple brackets fixedly connected to the outer wall of the tank at equal intervals;

[0027] A mounting plate fixedly connected to one of the brackets;

[0028] Wherein, the driving motor is installed on the top wall of the installation plate.

[0029] Furthermore, the environmentally friendly regular sewage expansion container also includes:

[0030] Manhole, fixedly connected to the side wall of the tank, is used for workers to enter the tank cavity for maintenance;

[0031] The human tube passes through the side wall of the tank body and is communicated with the tank cavity, and a tube cover is installed on one end of the human tube extending out of the tank body.

[0032] Furthermore, the liquid inlet pipe is fixedly connected to the side wall of the tank body and passes through the tank body and is connected to the tank cavity. The sewage pipe is fixedly connected to the bottom wall of the tank body and is connected to the tank cavity. The upper end of the sewage pipe is in smooth contact with the bottom wall of the tank cavity.

[0033] Furthermore, the air outlet pipe is fixedly connected to the top wall of the tank body, the air outlet pipe passes through the top wall of the tank body and is communicated with the tank cavity.

[0034] Furthermore, the environmentally friendly regular sewage expansion container also includes:

[0035] A steam baffle, fixedly connected to the top wall of the tank cavity;

[0036] Among them, the steam baffle is located just below the exhaust pipe.

[0037] Furthermore, the level of the water level sensor is lower than the levels of the liquid inlet pipe and the human pipe, respectively.

[0038] Furthermore, the heat exchange tube of the heat exchanger is located below the water level sensor, and the sealing ring penetrates the side wall of the sewage pipe and is interference fit with the side wall of the sewage pipe.

[0039] Furthermore, the water level sensor is externally connected to an industrial computer, and the industrial computer is electrically connected to the drive motor, the solenoid valve, and the water level sensor respectively.

[0040] The beneficial effect of the present application is that it provides an environmentally friendly periodic sewage discharge expansion container, which can automatically scrape off the dirt attached to the inner wall of the tank while discharging sewage and discharge it simultaneously with the sewage. BRIEF DESCRIPTION OF THE DRAWINGS

[0041] The drawings constituting a part of this application are used to provide a further understanding of this application and make other features, purposes and advantages of this application more apparent. The drawings and descriptions of the exemplary embodiments of this application are used to explain this application and do not constitute an improper limitation on this application.

[0042] In addition, throughout the drawings, the same or similar reference numerals represent the same or similar elements. It should be understood that the drawings are schematic and that the elements and components are not necessarily drawn to scale.

[0043] In the attached figure:

[0044] Figure 1 is an overall schematic diagram according to an embodiment of the present application;

[0045] Figure 2 It is a schematic cross-sectional view of a part of the embodiment, mainly showing the steam baffle structure;

[0046] Figure 3 yes Figure 2 Schematic diagram of the overall front view plane;

[0047] Figure 4 It is a schematic cross-sectional view of a part of the embodiment, mainly showing the structure of the driving member;

[0048] Figure 5 yes Figure 3 Magnified view of part A.

[0049] Reference numerals:

[0050] 11. Tank body; 12. Tank cavity; 13. Bracket; 14. Air outlet pipe; 15. Liquid inlet pipe; 16. Manhole; 17. Sewage pipe; 18. Heat exchanger; 19. Steam baffle; 20. Solenoid valve; 21. Mounting plate; 22. Drive motor; 23. Drive shaft; 24. Sealing ring; 25. Second bevel gear; 26. Hollow plate; 27. Main shaft; 28. Sweep rod; 29. ​​First bevel gear; 30. Connecting rod; 31. Arc brush plate; 32. Vertical brush plate; 33. Water level sensor. DETAILED DESCRIPTION

[0051] Embodiments of the present disclosure will be described in more detail below with reference to the accompanying drawings. Although certain embodiments of the present disclosure are shown in the accompanying drawings, it should be understood that the present disclosure can be implemented in various forms and should not be construed as being limited to the embodiments described herein. On the contrary, these embodiments are provided to provide a more thorough and complete understanding of the present disclosure. It should be understood that the drawings and embodiments of the present disclosure are for illustrative purposes only and are not intended to limit the scope of protection of the present disclosure.

[0052] It should also be noted that, for ease of description, only the parts related to the invention are shown in the drawings. In the absence of conflict, the embodiments and features in the embodiments of the present disclosure may be combined with each other.

[0053] It should be noted that the concepts of "first" and "second" mentioned in this disclosure are only used to distinguish different devices, modules or units, and are not used to limit the order or interdependence of the functions performed by these devices, modules or units.

[0054] It should be noted that the modifications of "one" and "multiple" mentioned in the present disclosure are illustrative rather than restrictive, and those skilled in the art should understand that unless otherwise clearly indicated in the context, they should be understood as "one or more".

[0055] The present disclosure will be described in detail below with reference to the accompanying drawings and in conjunction with embodiments.

[0056] Reference Figure 1-Figure 5 An environmentally friendly periodic sewage expansion tank includes: a tank body 11, a heat exchanger 18, a liquid inlet pipe 15, an air outlet pipe 14, a sewage pipe 17, a solenoid valve 20, a hollow plate 26, a main shaft 27, a connecting rod 30, an arc-shaped brush plate 31, a vertical brush plate 32, a sweeping rod 28, a water level sensor 33, a bracket 13, a mounting plate 21, a manhole 16, and a steam baffle 19.

[0057] A tank cavity 12 is provided within the tank body 11. A manifold 16 is fixedly connected to the side wall of the tank body 11, passes through the side wall of the tank body 11, and communicates with the tank cavity 12. A cap is mounted on the end of the manifold 16 extending outside the tank body 11. A liquid inlet pipe 15 is fixedly connected to the side wall of the tank body 11, passes through the tank body 11, and communicates with the tank cavity 12. A sewage discharge pipe 17 is fixedly connected to the bottom wall of the tank body 11, passes through the sewage discharge pipe 17, and communicates with the tank cavity 12. The upper end of the sewage discharge pipe 17 is in smooth contact with the bottom wall of the tank cavity 12. An air outlet pipe 14 is fixedly connected to the top wall of the tank body 11, passes through the top wall of the tank body 11, and communicates with the tank cavity 12. A steam baffle 19 is fixedly connected to the top wall of the tank cavity 12 and is located directly below the air outlet pipe 14.

[0058] A water level sensor 33 is fixedly connected to the inner wall of the tank cavity 12, and its height is lower than that of the liquid inlet pipe 15 and the manhole 16. A solenoid valve 20 is installed in the sewage pipe 17, a hollow plate 26 is fixedly connected to the sewage pipe 17, a main shaft 27 is rotatably connected to the top wall of the hollow plate 26, and a sweeping rod 28 is fixedly connected to the main shaft 27. Two connecting rods 30 are provided and symmetrically fixed to the main shaft 27. Two curved brush plates 31 are provided and respectively fixed to one end of the two connecting rods 30. Two vertical brush plates 32 are provided and respectively fixed to the two curved brush plates 31. The curved outer walls of the curved brush plates 31 are in sliding contact with a portion of the curved inner wall of the tank cavity 12, and the side walls of the vertical brush plates 32 are in sliding contact with a portion of the curved inner wall of the tank cavity 12.

[0059] In order to drive the main shaft 27 to rotate, a driving member is further provided, which includes: a first bevel gear 29 , a sealing ring 24 , a driving shaft 23 , a second bevel gear 25 , and a driving motor 22 .

[0060] The first bevel gear 29 is fixedly connected to the main shaft 27. The sealing ring 24 is installed within the wall of the sewage pipe 17, extending through the sidewall of the sewage pipe 17 and forming an interference fit therewith. The drive shaft 23 is inserted into the sealing ring 24 and is rotationally connected thereto. The second bevel gear 25 is fixedly connected to one end of the drive shaft 23. The drive motor 22 is located below the tank 11 and mounted on the top wall of the mounting plate 21. The drive shaft 23 is fixedly connected to the output shaft of the drive motor 22. The second bevel gear 25 meshes with the first bevel gear 29. Multiple brackets 13 are provided and fixedly connected to the outer wall of the tank 11 at equal intervals. The mounting plate 21 is fixedly connected to one of the brackets 13. The heat exchange tubes of the heat exchanger 18 are located below the water level sensor 33. The water level sensor 33 is connected to an industrial computer, which is electrically connected to the drive motor 22, the solenoid valve 20, and the water level sensor 33.

[0061] Working or installation process:

[0062] The sewage is introduced into the liquid inlet pipe 15 and then introduced into the tank cavity 12 through the liquid inlet pipe 15. The sewage and steam in the tank cavity 12 are separated, and the steam moves upward and is introduced into the outlet pipe 14. The steam is discharged out of the tank body 11 through the outlet pipe 14. The sewage accumulates in the tank cavity 12 and is subjected to heat exchange by the heat exchanger 18, thereby reducing the temperature of the sewage.

[0063] When the depth of the sewage in the tank cavity 12 continues to increase until the sewage in the tank cavity 12 submerges the water level sensor 33, and the water level sensor 33 detects that the water level in the tank cavity 12 reaches the set depth, the industrial computer controls the solenoid valve 20 to start, and the solenoid valve 20 opens, and the sewage in the tank cavity 12 is discharged out of the tank body 11 through the sewage pipe 17;

[0064] At this time, the drive motor 22 is started, and the output shaft of the drive motor 22 drives the drive shaft 23 to rotate, and the drive shaft 23 drives the second bevel gear 25 to rotate. The second bevel gear 25 meshes with the first bevel gear 29 and drives the main shaft 27 to rotate. The main shaft 27 drives the sweeping rod 28 and the connecting rod 30 to rotate synchronously. The connecting rod 30 drives the arc brush plate 31 to rotate around the axis of the main shaft 27. The arc brush plate 31 drives the vertical brush plate 32 to rotate synchronously. The vertical brush plate 32 and the arc brush plate 31 scrape off the dirt remaining on the inner wall of the tank cavity 12. The scraped dirt falls down with the sewage and is discharged from the sewage pipe 17. In this process, the main shaft 27 drives the sweeping rod 28 to rotate, and the sweeping rod 28 rotates to prevent dirt from clogging the hollow plate 26.

[0065] The above description is only an illustration of some preferred embodiments of the present disclosure and the technical principles used. Those skilled in the art should understand that the scope of the invention involved in the embodiments of the present disclosure is not limited to the technical solutions formed by the specific combination of the above-mentioned technical features, but should also cover other technical solutions formed by any combination of the above-mentioned technical features or their equivalent features without departing from the above-mentioned inventive concept. For example, the above-mentioned features are replaced with (but not limited to) technical features with similar functions disclosed in the embodiments of the present disclosure.

Claims

1. An environmentally friendly periodic sewage expansion container, comprising: Tank body (11), heat exchanger (18), liquid inlet pipe (15), air outlet pipe (14), sewage pipe (17); The invention is characterized in that: a tank cavity (12) is provided in the tank body (11); The environmentally friendly regular sewage expansion container also includes: A solenoid valve (20) is installed in the sewage pipe (17); A hollow plate (26) is fixedly connected to the sewage pipe (17); a main shaft (27) rotatably connected to the top wall of the hollow plate (26); a connecting rod (30) fixedly connected to the main shaft (27); An arc-shaped brush plate (31) is fixedly connected to one end of the connecting rod (30); A vertical brush plate (32) is fixedly connected to the arc-shaped brush plate (31); A sweeping rod (28) is fixedly connected to the main shaft (27); a water level sensor (33) fixedly connected to the inner wall of the tank cavity (12); The arc-shaped outer wall of the arc-shaped brush plate (31) is in sliding contact with a portion of the arc-shaped inner wall of the tank cavity (12), and the side wall of the vertical brush plate (32) is in sliding contact with a portion of the arc-shaped inner wall of the tank cavity (12); A driving member is provided in the sewage pipe (17) and is used for driving the main shaft (27) to rotate.

2. The environmentally friendly periodic sewage discharge expansion container according to claim 1 is characterized in that: The driving member includes: A first bevel gear (29) is fixedly connected to the main shaft (27); A sealing ring (24) is installed in the wall of the sewage pipe (17); A drive shaft (23) is inserted into the sealing ring (24) and is rotationally connected to the sealing ring (24); A second bevel gear (25) is fixedly connected to one end of the drive shaft (23); A driving motor (22) is provided below the tank body (11); The driving shaft (23) is fixedly connected to the output shaft of the driving motor (22), and the second bevel gear (25) is meshed with the first bevel gear (29).

3. The environmentally friendly periodic sewage discharge expansion container according to claim 2 is characterized in that: The environmentally friendly regular sewage expansion container also includes: A plurality of brackets (13) are provided and fixedly connected to the outer wall of the tank body (11) at equal intervals; A mounting plate (21) fixedly connected to one of the brackets (13); Wherein, the driving motor (22) is mounted on the top wall of the mounting plate (21).

4. The environmentally friendly periodic sewage discharge expansion container according to claim 1 is characterized in that: The environmentally friendly regular sewage expansion container also includes: A manhole (16) is fixedly connected to the side wall of the tank body (11) and is used for workers to enter the tank cavity (12) for maintenance; The human tube (16) passes through the side wall of the tank body (11) and is connected to the tank cavity (12); a tube cover is installed on one end of the human tube (16) extending outside the tank body (11).

5. The environmentally friendly periodic sewage discharge expansion container according to claim 4 is characterized in that: The liquid inlet pipe (15) is fixedly connected to the side wall of the tank body (11) and the liquid inlet pipe (15) passes through the tank body (11) and is communicated with the tank cavity (12); the sewage discharge pipe (17) is fixedly connected to the bottom wall of the tank body (11) and the sewage discharge pipe (17) is communicated with the tank cavity (12); the upper end of the sewage discharge pipe (17) is in smooth contact with the bottom wall of the tank cavity (12).

6. The environmentally friendly periodic sewage discharge expansion container according to claim 1 is characterized in that: The air outlet pipe (14) is fixedly connected to the top wall of the tank body (11), the air outlet pipe (14) passes through the top wall of the tank body (11), and the air outlet pipe (14) is communicated with the tank cavity (12).

7. The environmentally friendly periodic sewage discharge expansion container according to claim 6, characterized in that: The environmentally friendly regular sewage expansion container also includes: a steam baffle (19) fixedly connected to the top wall of the tank cavity (12); Wherein, the steam baffle (19) is located directly below the air outlet pipe (14).

8. The environmentally friendly periodic sewage discharge expansion container according to claim 4, characterized in that: The level of the water level sensor (33) is lower than the levels of the liquid inlet pipe (15) and the human pipe (16).

9. The environmentally friendly periodic sewage discharge expansion container according to claim 2, characterized in that: The heat exchange tube of the heat exchanger (18) is located below the water level sensor (33), and the sealing ring (24) passes through the side wall of the sewage pipe (17) and is interference-fitted with the side wall of the sewage pipe (17).

10. The environmentally friendly periodic sewage discharge expansion container according to claim 9, characterized in that: The water level sensor (33) is externally connected to an industrial control computer, and the industrial control computer is electrically connected to the drive motor (22), the solenoid valve (20), and the water level sensor (33) respectively.