Device for observing front and back water levels of circulating water channel filter screen

Abstract

The utility model relates to the technical field of boiler circulating pipes, and discloses a circulating water channel filter screen front and back water level observation device which comprises a circulating water pipe, a filter screen is installed in the circulating water pipe, and flanges are installed on the two sides of the circulating water pipe. The observation mechanisms are located on the two sides of the filter screen, each observation mechanism comprises a communicating assembly, a pollution discharge assembly and a positioning assembly, the communicating assemblies are located at the bottom of the circulating water pipe, and the pollution discharge assemblies are located at the bottoms of the communicating assemblies; through the arrangement of the observation mechanism, the water level in front of and behind the filter screen can be observed, and a user can know the blocking degree and the filtering effect of the filter screen in real time, so that the measure of cleaning or replacing the filter screen can be taken in time, and meanwhile, the problem that a traditional device is short of visual water level change feedback is solved. The problems that the cooling effect of the blast furnace is affected and the overheating and damage risks of equipment are increased due to the fact that the filter screen is blocked for a long time and cannot be treated in time are solved.

Description

TECHNICAL FIELD

[0001] The utility model relates to a boiler circulation pipe technical field, concretely is the water level observation device before and after circulating water channel filter screen. BACKGROUND

[0002] Circulating water channel is a crucial component in blast furnace, used for cooling and protecting key equipment and structure of blast furnace, through a closed or semi-closed circulation system, cooling water is delivered to each part of blast furnace needing cooling to absorb and take away a large amount of heat generated inside blast furnace, cooling water is heated after absorbing heat and is sent back to cooling tower or other cooling equipment to be cooled down, then is recycled again, so that the continuous management of heat and long-term stable operation of equipment are realized.

[0003] In blast furnace circulating water channel, the water level before filter screen is usually higher, water flow has not been filtered before entering filter screen, contains more impurities and particles, resulting in that the flow resistance of water flow is larger, so the water level is relatively raised, and the water level after filter screen is relatively lower, impurities and particles in water are effectively removed after being filtered by filter screen, the flow resistance of water flow is reduced, so that the water level is lowered down;However, the water level before and after the filter screen of the traditional circulating water channel is inconvenient for the user to observe, so that the change of the water level before and after the filter screen cannot be directly observed, the user is difficult to understand the plugging degree and filtering effect of the filter screen in real time, so that the measures of cleaning or replacing the filter screen cannot be taken in time, at the same time, due to the lack of intuitive water level change feedback, the filter screen may not be processed in time due to long-term plugging, resulting in that the water flow is not smooth or even interrupted, and then the cooling effect of blast furnace is affected, the risk of overheating and damage of equipment is increased. UTILITY MODEL CONTENTS

[0004] The utility model discloses a water level observation device before and after circulating water channel filter screen, solve the water level before and after the filter screen of circulating water channel in the background art inconvenient for the user to observe, so that the change of the water level before and after the filter screen cannot be directly observed, the user is difficult to understand the plugging degree and filtering effect of the filter screen in real time, so that the measures of cleaning or replacing the filter screen cannot be taken in time.

[0005] In order to solve the above technical problem, the utility model provides the following technical scheme:

[0006] The water level observation device before and after circulating water channel filter screen includes:

[0007] Circulating water pipe, the inside installation of circulating water pipe has filter screen, and the both sides of circulating water pipe are installed with flange;

[0008] The observation mechanism is located on both sides of the filter screen and is used for observing the water level inside the circulating water pipe, and comprises a communication assembly, a blowdown assembly and a positioning assembly, the communication assembly is located at the bottom of the circulating water pipe and is used for connecting the water sources on both sides of the filter screen, the blowdown assembly is located at the bottom of the communication assembly and is used for discharging dirt inside the circulating water pipe, and the positioning assembly is located between the circulating water pipe and the communication assembly and is used for positioning the communication assembly.

[0009] Preferably, the communication assembly comprises two connecting pipes connected to the bottom of the circulating water pipe, one side of the bottom of the two connecting pipes is connected with a communication pipe, the top of one side of the communication pipe is provided with an observation pipe, and a sealing block is arranged between the connecting pipe and the circulating water pipe.

[0010] Preferably, the positioning assembly comprises a fixed plate fixed to one side of the circulating water pipe, one side of the fixed plate is provided with a positioning sleeve, the positioning sleeve is sleeved on the outer wall of the observation pipe, and a limiting assembly for limiting the observation pipe is arranged between the positioning sleeve and the observation pipe.

[0011] Preferably, one side of the observation pipe is provided with a scale, and one side of the positioning sleeve is provided with an opening slot for the scale.

[0012] Preferably, the limiting assembly comprises fixed blocks fixed to both sides of the observation pipe, both sides of the top of the positioning sleeve are provided with plug-in plates, the bottom of each plug-in plate is fixed with a baffle, both sides of the top of the positioning sleeve are provided with groove bodies for the baffle to insert into, bolts are screwed between the baffle and the groove body, the plug-in plates are inserted into the fixed blocks, and both sides of the inside of the positioning sleeve are provided with sliding grooves for the fixed blocks to slide in.

[0013] Preferably, the blowdown assembly comprises a filter plate installed in the communication pipe, the bottom of the communication pipe is connected with a blowdown pipe, and a one-way valve is installed in the inside of the blowdown pipe.

[0014] Preferably, the top of the observation pipe is provided with a cover plate, the cover plate is in a conical shape, a plurality of evenly distributed overflow holes are formed in the inside of the cover plate, and the overflow holes are communicated with the observation pipe.

[0015] Compared with the prior art, the present application has the following beneficial effects:

[0016] Through the arrangement of the observation mechanism, the water levels before and after the filter screen can be observed, and the user can know the clogging degree and filtering effect of the filter screen in real time, so that the user can take measures to clean or replace the filter screen in time, and the problem that the filter screen cannot be treated in time due to the lack of intuitive water level change feedback in the traditional device, which leads to poor water flow or even interruption and affects the cooling effect of the blast furnace and increases the risk of equipment overheating and damage, is solved. BRIEF DESCRIPTION OF DRAWINGS

[0017] Figure 1 It is the overall structure schematic view of the utility model;

[0018] Figure 2 It is the overall sectional view of the utility model;

[0019] Figure 3 It is the structure schematic view of the observation assembly of the utility model;

[0020] Figure 4 It is the sectional view of the communicating pipe of the utility model;

[0021] Figure 5 It is the structure schematic view of the positioning mechanism of the utility model.

[0022] Among them: 1, circulating water pipe; 2, flange; 3, communicating pipe; 4, observation pipe; 5, scale; 6, cover plate; 7, overflow hole; 8, positioning sleeve; 9, fixed plate; 10, connecting pipe; 11, blowdown pipe; 12, filter plate; 13, check valve; 14, chute; 15, fixed block; 16, plugboard; 17, bolt; 18, filter screen. DETAILED DESCRIPTION

[0023] The technical solutions in the embodiments of the utility model will be clearly and completely described below with reference to the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor fall within the protection scope of the utility model.

[0024] Please refer to Figure 1 and Figure 2 Circulating water channel filter screen front and back water level observation device, comprising: circulating water pipe 1, the inside of circulating water pipe 1 is installed with filter screen 18, and both sides of circulating water pipe 1 are installed with flange 2;

[0025] Please refer to Figure 3 and Figure 5The observation mechanism is located on both sides of the filter screen 18 and is used to observe the water level inside the circulating water pipe 1, and the observation mechanism comprises a communication assembly, a sewage assembly and a positioning assembly. The communication assembly is located at the bottom of the circulating water pipe 1 and is used to communicate the water sources on both sides of the filter screen 18. The sewage assembly is located at the bottom of the communication assembly and is used to discharge the dirt inside the circulating water pipe 1. The positioning assembly is located between the circulating water pipe 1 and the communication assembly and is used to position the communication assembly. The communication assembly comprises two connecting pipes 10 connected to the bottom of the circulating water pipe 1. One side of the bottom of each connecting pipe 10 is connected with a communication pipe 3. The top of one side of the communication pipe 3 is provided with an observation pipe 4. A sealing block is arranged between the connecting pipe 10 and the circulating water pipe 1. The positioning assembly comprises a fixed plate 9 fixed to one side of the circulating water pipe 1. One side of the fixed plate 9 is provided with a positioning sleeve 8. The positioning sleeve 8 is sleeved on the outer wall of the observation pipe 4. A limiting assembly for limiting the observation pipe 4 is arranged between the positioning sleeve 8 and the observation pipe 4. One side of the observation pipe 4 is provided with a scale 5. An open slot for the scale 5 to move is formed in one side of the positioning sleeve 8.

[0026] The water source inside the circulating water pipe 1 can enter the communication pipe 3 through the connecting pipe 10. The U-shaped pipe is formed through the arrangement of the observation pipe 4. The water source inside the observation pipe 4 can be effectively observed through the arrangement of the scale 5.

[0027] Further, please refer to Figure 5 The limiting assembly comprises a fixed block 15 fixed to both sides of the observation pipe 4. The top of the positioning sleeve 8 is provided with an insertion plate 16. The bottom of the insertion plate 16 is fixed with a baffle. The top of the positioning sleeve 8 is provided with a groove for the baffle to insert. The baffle and the groove are screwed with a bolt 17. The insertion plate 16 is inserted with the fixed block 15. The inside of the positioning sleeve 8 is provided with a sliding groove 14 for the fixed block 15 to slide. Based on this, the baffle is separated from the groove through the screwing of the bolt 17. The insertion plate 16 is pulled to separate it from the fixed block 15. After the separation of the insertion plate 16 and the fixed block 15, the observation pipe 4 is moved vertically to drive the fixed block 15 to slide in the sliding groove 14. In the same way, the baffle and the groove can be installed to form the positioning of the observation pipe 4.

[0028] In addition, please refer to Figure 3 and Figure 4 The sewage assembly comprises a filter plate 12 installed in the communication pipe 3. The bottom of the communication pipe 3 is connected with a sewage pipe 11. The inside of the sewage pipe 11 is provided with a one-way valve 13. The top of the observation pipe 4 is provided with a cover plate 6. The cover plate 6 is in a conical shape. The inside of the cover plate 6 is provided with a plurality of evenly distributed overflow holes 7. The overflow holes 7 are communicated with the observation pipe 4.

[0029] The water in the circulating water pipe 1 can form filtration through the filter plate 12, the dirt in the water source can be blocked by filtering the water source, the dirt can enter the inside of the dirt discharge pipe 11 through the setting of the one-way valve 13, thereby forming discharge, when the water source in the observation tube 4 moves to the inside of the cover plate 6, the discharge is carried out through the plurality of overflow holes 7, at the same time, the excess air in the observation tube 4 can be effectively discharged through the setting of the plurality of overflow holes 7;

[0030] By discharging the dirt in the communicating pipe 3, the corrosion and wear of the communicating pipe 3 caused by the dirt can be reduced, thereby prolonging the service life, the removal of the dirt helps to improve the purity of the cooling water, reduces the influence of impurities on the pipeline, and helps to maintain a good water quality state, at the same time, the clean communicating pipe 3 makes the water level change more intuitive, which is convenient for the user to observe and monitor the running state, and timely discovers and solves problems.

[0031] Although the embodiments of the utility model have been shown and described, it can be understood by those skilled in the art that various changes, modifications, replacements and modifications can be made to these embodiments without departing from the principles and spirits, the scope of the utility model is defined by the appended claims and their equivalents.

Claims

1. A device for observing water level before and after a filter screen in a circulating waterway, characterized in that, Include: The circulating water pipe (1), the inside of the circulating water pipe (1) is provided with a filter screen (18), and the two sides of the circulating water pipe (1) are provided with flanges (2); The observation mechanism is located on both sides of the filter screen (18) and is used for observing the water level in the circulating water pipe (1), the observation mechanism comprises a communication assembly, a pollution discharge assembly and a positioning assembly, the communication assembly is located at the bottom of the circulating water pipe (1) and is used for connecting the water sources on both sides of the filter screen (18), the pollution discharge assembly is located at the bottom of the communication assembly and is used for discharging the dirt in the circulating water pipe (1), and the positioning assembly is located between the circulating water pipe (1) and the communication assembly and is used for positioning the communication assembly.

2. The water level observation device before and after the filter screen of the circulating water channel according to claim 1, characterized in that: The communication assembly comprises two connecting pipes (10) connected at the bottom of the circulating water pipe (1), one side of the bottom of the two connecting pipes (10) is connected with a communication pipe (3), one side of the top of the communication pipe (3) is provided with an observation pipe (4), and a sealing block is arranged between the connecting pipe (10) and the circulating water pipe (1).

3. The water level observation device before and after the filter screen of the circulating water channel according to claim 2, characterized in that: The positioning assembly comprises a fixed plate (9) fixed on one side of the circulating water pipe (1), one side of the fixed plate (9) is provided with a positioning sleeve (8), the positioning sleeve (8) is sleeved on the outer wall of the observation pipe (4), and a limiting assembly for limiting the observation pipe (4) is arranged between the positioning sleeve (8) and the observation pipe (4).

4. The water level observation device before and after the filter screen of the circulating water channel according to claim 3, characterized in that: One side of the observation pipe (4) is provided with a scale (5), and one side of the positioning sleeve (8) is provided with an opening slot for the scale (5).

5. The water level observation device before and after the filter screen of the circulating water channel according to claim 3, characterized in that: The limiting assembly comprises a fixed block (15) fixed on both sides of the observation pipe (4), both sides of the top of the positioning sleeve (8) are provided with an insertion plate (16), the bottom of the insertion plate (16) is fixed with a baffle, both sides of the top of the positioning sleeve (8) are provided with a groove for inserting the baffle, and a bolt (17) is screwed between the baffle and the groove. The insertion plate (16) is inserted with the fixed block (15), and both sides of the inside of the positioning sleeve (8) are provided with a sliding groove (14) for sliding the fixed block (15).

6. The water level observation device before and after the filter screen of the circulating water channel according to claim 1, characterized in that: The pollution discharge assembly comprises a filter plate (12) installed in the communication pipe (3), and the bottom of the communication pipe (3) is connected with a pollution discharge pipe (11), and the inside of the pollution discharge pipe (11) is provided with a one-way valve (13).

7. The water level observation device before and after the filter screen of the circulating water channel according to claim 2, characterized in that: The top of the observation pipe (4) is provided with a cover plate (6), the cover plate (6) is conical, a plurality of evenly distributed overflow holes (7) are formed in the inside of the cover plate (6), and the overflow holes (7) are communicated with the observation pipe (4).

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