Automatic blowdown device for boiler

Abstract

The utility model relates to the technical field of boiler blow-off, and discloses an automatic boiler blow-off device which comprises a sewage pipe used for being connected with a boiler blow-off port, the sewage pipe is provided with an adjusting valve, a flow meter and a water quality detector, and the end, away from the boiler blow-off port, of the sewage pipe is in flange connection with a blow-off box. A sewage discharging assembly is arranged on the lower side of the sewage discharging box; the drainage pipe and the collection box are fixedly welded to the bottom of the drainage box, the filter screen is fixedly installed between the drainage pipe and the drainage box, the first electric push rod is fixedly installed on the lower side of the collection box, and the baffle is fixedly connected with an output shaft of the first electric push rod and extends into the collection box. And a cleaning assembly is arranged between the blowdown box and the filter screen. According to the automatic blowdown device for the boiler, under the cooperation of the blowdown box, the blowdown assembly and the cleaning assembly, efficient discharge of sewage is guaranteed, meanwhile, cleaning of the filter screen is facilitated, and efficient blowdown is achieved.

Description

Technical Field

[0001] The utility model relates to the technical field of boiler sewage discharge, in particular to an automatic boiler sewage discharge device. Background Art

[0002] A boiler is a device that can convert fuel into thermal energy. They usually use water to transfer heat energy and generate steam for power generation, heating and other purposes. During the operation of the boiler, sewage will be produced due to residues, chemicals and other reasons contained in the water. Automatic sewage discharge devices are required to continuously discharge sewage and remove boiler water with high salt content so that the water quality of the boiler water meets the specified indicators, so as to ensure the safe operation of the boiler.

[0003] A Chinese utility model patent with announcement number CN219810055U discloses an automatic boiler sewage discharge device, including a boiler and a sewage pipe installed on the boiler for sewage discharge, wherein the interior of the sewage pipe is provided with a filter screen through an anti-blocking mechanism, the anti-blocking mechanism is used to clean the residue on the surface of the filter screen, and the surface of the sewage pipe is provided with a storage mechanism for storing the residue; the interior of the sewage pipe is provided with a water quality detector for detecting the quality of sewage, one end of the sewage pipe is provided with a drain pipe through an electromagnetic valve, and the electromagnetic valve is flange-connected to the sewage pipe; the automatic boiler sewage discharge device achieves the advantage that when sewage flows and is discharged, the propeller is driven to rotate, and then the transmission scraper cleans the residue on the surface of the filter screen, making the sewage discharge smoother.

[0004] At least the following problems exist in this technology: the automatic boiler sewage discharge device cleans the residue on the surface of the filter screen through an anti-blocking mechanism; however, in actual use, since the anti-blocking mechanism is directly installed inside the sewage pipe, its own structure causes a certain obstruction to the discharge of sewage, thereby affecting the passing efficiency of sewage, reducing the sewage discharge effect, and having low practicality. Therefore, a boiler automatic sewage discharge device is proposed to solve the above-mentioned problems. Utility Model Content

[0005] In view of the shortcomings of the prior art, the present application provides an automatic boiler sewage discharge device which has the advantages of easy cleaning and efficient sewage discharge. It solves the problem that the existing automatic boiler sewage discharge device cleans the residue on the surface of the filter screen through an anti-blocking mechanism. However, in actual use, since the anti-blocking mechanism is directly installed inside the sewage pipe, its own structure causes a certain obstruction to the discharge of sewage, thereby affecting the sewage passing efficiency, reducing the sewage discharge effect, and having a low practicality.

[0006] In summary, the present application provides the following technical solutions: an automatic boiler sewage discharge device, comprising a sewage pipe connected to a boiler sewage outlet, the sewage pipe being provided with a regulating valve, a flow meter and a water quality detector, respectively, the sewage pipe being flange-connected to a sewage box at one end away from the boiler sewage outlet, and a sewage discharge assembly being provided at the lower side of the sewage box;

[0007] The sewage discharge assembly includes a drain pipe and a collection box fixedly welded to the bottom of the sewage discharge box, a filter screen fixedly installed between the drain pipe and the sewage discharge box, a first electric push rod fixedly installed on the lower side of the collection box, and a baffle fixedly connected to the output shaft of the first electric push rod and extending to the inside of the collection box;

[0008] A cleaning component is provided between the sewage box and the filter screen;

[0009] The cleaning assembly includes a second electric push rod fixedly mounted on the upper side of the sewage box, a mounting rod connected to the output shaft of the second electric push rod and extending into the sewage box, and a scraper disposed inside the sewage box and fixedly connected to the mounting rod.

[0010] The present application adopts the above-mentioned technical scheme, discharges the sewage in the sewage pipe through the set sewage box and drain pipe, separates the impurities in the sewage by using the filter between the sewage box and the drain pipe, drives the scraper to move by the second electric push rod, so that the scraper can push the impurities on the surface of the filter onto the baffle in the collection box, and utilizes the drive of the first electric push rod to facilitate the adjustment of the height of the baffle, which can facilitate the adjustment of the storage space of the collection box. When cleaning is completed, the second electric push rod drives the scraper to move to the side away from the drain pipe and the collection box, which will not block the sewage, thereby ensuring the efficient discharge of sewage and facilitating the cleaning of the filter, thereby achieving efficient sewage discharge and high practicality.

[0011] Furthermore, a flange joint for connecting to the sewage pipe is fixedly welded on the outer wall of the sewage tank.

[0012] The beneficial effect of adopting the above further solution is that the flange joint is provided to facilitate the connection of pipelines and installation.

[0013] Furthermore, a cleaning opening is provided on the outer wall of the collection box, and the baffle is matched with the inner wall of the collection box.

[0014] The beneficial effect of adopting the above further solution is: the baffle is driven to move below the cleaning port by the first electric push rod, and the staff can clean the impurities collected inside the collection box through the cleaning port.

[0015] Furthermore, the scraper is adapted to the inner wall of the sewage tank, and the lower end of the scraper is made of polyurethane.

[0016] The beneficial effect of adopting the above further solution is that the lower end of the scraper is made of polyurethane, which has good wear resistance and ensures the service life of the scraper.

[0017] Furthermore, the upper surface of the filter screen is kept flush with the inner bottom wall of the sewage tank.

[0018] The beneficial effect of adopting the above further solution is that the scraper is in stable contact with the surface of the filter screen when moving inside the sewage box, which facilitates the scraper to clean impurities on the surface of the filter screen.

[0019] Furthermore, a connecting plate is fixedly mounted on the output shaft of the second electric push rod, and one end of the mounting rod away from the sewage tank is fixedly connected to the connecting plate.

[0020] The beneficial effect of adopting the above further solution is that the connecting plate can be driven to move by the driving of the second electric push rod, and the displacement of the connecting plate can be used to drive the installation rod to move synchronously, thereby facilitating the adjustment of the position of the scraper.

[0021] Furthermore, a guide rail is fixedly installed on the outer wall of the sewage box, a sliding block is fixedly connected to the lower end of the connecting plate, and the sliding block is slidably connected to the inner side of the guide rail.

[0022] The beneficial effect of adopting the above further solution is that the connection plate can be guided by the cooperation of the slider and the guide rail, thereby improving the stability of the structure.

[0023] Compared with the prior art, the present application provides a boiler automatic blowdown device, which has the following beneficial effects:

[0024] The automatic sewage discharge device of the boiler discharges sewage in the sewage pipe through the sewage box and the drain pipe, separates impurities in the sewage by using the filter between the sewage box and the drain pipe, drives the scraper to move by the second electric push rod, so that the scraper can push the impurities on the surface of the filter onto the baffle in the collection box, and utilizes the drive of the first electric push rod to facilitate the adjustment of the height of the baffle, which can facilitate the adjustment of the storage space of the collection box. When cleaning is completed, the second electric push rod drives the scraper to move to the side away from the drain pipe and the collection box. With the cooperation of the sewage box, the sewage discharge component and the cleaning component, the efficient discharge of sewage is guaranteed, and the cleaning of the filter is convenient, thereby achieving efficient sewage discharge and high practicality. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 It is a cross-sectional view of the structure of this application;

[0026] Figure 2 This application Figure 1 A is a schematic diagram of the enlarged structure shown;

[0027] Figure 3It is a structural stereogram of the sewage tank of the present application.

[0028] Description of reference numerals:

[0029] 1. Sewage pipe; 2. Sewage tank; 3. Regulating valve; 4. Flow meter; 5. Water quality detector; 6. Drain pipe; 7. Filter; 8. Collection box; 9. Cleaning port; 10. First electric push rod; 11. Baffle; 12. Second electric push rod; 13. Connecting plate; 14. Mounting rod; 15. Scraper; 16. Guide rail; 17. Slider; 18. Flange joint. DETAILED DESCRIPTION

[0030] See also Figure 1-3 In this embodiment, a boiler automatic sewage discharge device includes a sewage pipe 1 connected to the boiler sewage outlet, and a regulating valve 3, a flow meter 4 and a water quality detector 5 are respectively provided on the sewage pipe 1.

[0031] It can be understood that the water quality of the sewage is tested by the water quality detector 5. When the water quality reaches the standard required for discharge, the water quality detector 5 sends the detection signal to the processor. After receiving the signal, the processor processes the signal and then sends it to the regulating valve 3 to control the regulating valve 3 to open, thereby discharging it through the sewage pipe 1 to achieve automatic sewage discharge. During the sewage discharge process, the flow meter 4 is used to monitor the discharge flow of the sewage.

[0032] In this embodiment, the end of the sewage pipe 1 away from the boiler sewage outlet is flange-connected to the sewage box 2, wherein a flange joint 18 for connecting to the sewage pipe 1 is fixedly welded on the outer wall of the sewage box 2. The flange joint 18 is provided to facilitate the connection of pipelines and installation.

[0033] In this embodiment, a sewage discharge assembly is provided at the lower side of the sewage box 2, and the sewage discharge assembly includes a drain pipe 6 and a collection box 8 fixedly welded to the bottom of the sewage box 2, a filter screen 7 fixedly installed between the drain pipe 6 and the sewage box 2, a first electric push rod 10 fixedly installed at the lower side of the collection box 8, and a baffle 11 fixedly connected to the output shaft of the first electric push rod 10 and extending to the inside of the collection box 8. The sewage in the sewage pipe 1 is discharged through the sewage box 2 and the drain pipe 6, and the impurities in the sewage are separated by the filter screen 7 between the sewage box 2 and the drain pipe 6. The impurities are easily collected by the collection box 8, and the height of the baffle 11 is easily adjusted by driving the first electric push rod 10, so that the storage space of the collection box 8 can be easily adjusted.

[0034] Among them, a cleaning port 9 is opened on the outer wall of the collection box 8, and the baffle 11 is adapted to the inner wall of the collection box 8. The baffle 11 is driven by the first electric push rod 10 to move below the cleaning port 9, and the staff can clean the impurities collected inside the collection box 8 through the cleaning port 9.

[0035] In this embodiment, a cleaning assembly is provided between the sewage box 2 and the filter screen 7, and the cleaning assembly includes a second electric push rod 12 fixedly installed on the upper side of the sewage box 2, a mounting rod 14 connected to the output shaft of the second electric push rod 12 and extending to the inside of the sewage box 2, and a scraper 15 provided inside the sewage box 2 and fixedly connected to the mounting rod 14. The scraper 15 is driven by the second electric push rod 12 to move, so that the scraper 15 can push the impurities on the surface of the filter screen 7 onto the baffle 11 in the collection box 8. When cleaning is completed, the second electric push rod 12 drives the scraper 15 to move to a side away from the drain pipe 6 and the collection box 8, which will not block the sewage, thereby ensuring the efficient discharge of sewage and facilitating the cleaning of the filter screen 7.

[0036] The scraper 15 is matched with the inner wall of the sewage box 2, and the lower end of the scraper 15 is made of polyurethane. The lower end of the scraper 15 is made of polyurethane, which has good wear resistance and ensures the service life of the scraper 15. At the same time, the upper surface of the filter 7 is flush with the inner bottom wall of the sewage box 2, so that the scraper 15 is in stable contact with the surface of the filter 7 when moving inside the sewage box 2, which facilitates the scraper 15 to clean the impurities on the surface of the filter 7.

[0037] It should be added that a connecting plate 13 is fixedly mounted on the output shaft of the second electric push rod 12, and the end of the mounting rod 14 away from the sewage box 2 is fixedly connected to the connecting plate 13. The driving of the second electric push rod 12 can drive the connecting plate 13 to move, and the displacement of the connecting plate 13 drives the mounting rod 14 to move synchronously, which facilitates the adjustment of the position of the scraper 15. At the same time, a guide rail 16 is fixedly mounted on the outer wall of the sewage box 2, and a slider 17 is fixedly connected to the lower end of the connecting plate 13. The slider 17 is slidably connected to the inner side of the guide rail 16. The cooperation of the slider 17 and the guide rail 16 can guide the connecting plate 13, thereby improving the stability of the structure.

[0038] The working principle of the above embodiment is:

[0039] When the present application is in use, the sewage in the sewage pipe 1 is discharged through the sewage box 2 and the drain pipe 6, the impurities in the sewage are separated by the filter screen 7 between the sewage box 2 and the drain pipe 6, and the impurities are collected by the provided collecting box 8. The height of the baffle 11 is conveniently adjusted by driving the first electric push rod 10 to adjust the storage space of the collecting box 8, and the scraper 15 is driven by the second electric push rod 12 to move so that the scraper 15 can push the impurities on the surface of the filter screen 7 onto the baffle 11 in the collecting box 8. When cleaning is completed, the second electric push rod 12 drives the scraper 15 to move to the side away from the drain pipe 6 and the collecting box 8. When the sewage stops being discharged, the baffle 11 is driven by the first electric push rod 10 to move to the bottom of the cleaning port 9, and the staff can clean the impurities collected inside the collecting box 8 through the cleaning port 9.

Claims

1. A boiler automatic sewage discharge device, comprising a sewage pipe (1) connected to a boiler sewage outlet, wherein a regulating valve (3), a flow meter (4) and a water quality detector (5) are respectively provided on the sewage pipe (1), and the characteristics are: The end of the sewage pipe (1) away from the boiler sewage outlet is flange-connected to a sewage box (2), and a sewage discharge assembly is arranged at the lower side of the sewage box (2); The sewage discharge assembly comprises a drainage pipe (6) and a collection box (8) fixedly welded to the bottom of the sewage discharge box (2), a filter screen (7) fixedly installed between the drainage pipe (6) and the sewage discharge box (2), a first electric push rod (10) fixedly installed on the lower side of the collection box (8), and a baffle (11) fixedly connected to the output shaft of the first electric push rod (10) and extending to the interior of the collection box (8); A cleaning component is provided between the sewage box (2) and the filter screen (7); The cleaning assembly comprises a second electric push rod (12) fixedly mounted on the upper side of the sewage box (2), a mounting rod (14) connected to the output shaft of the second electric push rod (12) and extending into the interior of the sewage box (2), and a scraper (15) disposed inside the sewage box (2) and fixedly connected to the mounting rod (14).

2. The automatic boiler blowdown device according to claim 1, characterized in that: A flange joint (18) for connecting to the sewage pipe (1) is fixedly welded on the outer wall of the sewage box (2).

3. The automatic boiler blowdown device according to claim 1, characterized in that: A cleaning opening (9) is provided on the outer wall of the collection box (8), and the baffle (11) is adapted to fit the inner wall of the collection box (8).

4. The automatic boiler blowdown device according to claim 1, characterized in that: The scraper (15) is adapted to the inner wall of the sewage discharge box (2), and the lower end of the scraper (15) is made of polyurethane.

5. The automatic boiler blowdown device according to claim 1, characterized in that: The upper surface of the filter screen (7) is kept flush with the inner bottom wall of the sewage tank (2).

6. The automatic boiler blowdown device according to claim 1, characterized in that: A connecting plate (13) is fixedly mounted on the output shaft of the second electric push rod (12), and one end of the mounting rod (14) away from the sewage discharge box (2) is fixedly connected to the connecting plate (13).

7. The automatic boiler blowdown device according to claim 6, characterized in that: A guide rail (16) is fixedly mounted on the outer wall of the sewage discharge box (2), a sliding block (17) is fixedly connected to the lower end of the connecting plate (13), and the sliding block (17) is slidably connected to the inner side of the guide rail (16).

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