Construction site carbon emission monitoring device

Abstract

The utility model relates to a construction site carbon emission monitoring device which effectively solves the problems that a carbon emission monitoring device is poor in filter screen cleaning effect, fast in filter screen loss, large in device noise and high in failure rate. According to the technical scheme, the device comprises a shell, the shell is composed of a main cylinder and a branch cylinder, a partition plate is installed in the main cylinder and divides the main cylinder into a left cavity and a right cavity, the branch cylinder is perpendicular to the main cylinder and communicated with the left cavity of the main cylinder, a monitor is installed in the right cavity of the main cylinder, and a rotatable filter cylinder is coaxially installed in the left cavity of the main cylinder; the right end of the filter cylinder penetrates through the partition plate, an air inlet is formed in the upper end of the branch cylinder, an air outlet is formed in the right end of the main cylinder, and a first fan is arranged in the branch cylinder; the lower side of the main cylinder is provided with a notch, two sides of the inner end of the notch are respectively and fixedly provided with a batten, and the battens are contacted and sealed with the outer wall of the filter cylinder; the back flushing device can effectively ensure the back flushing cleaning effect, and is stable in equipment operation, free of knocking and shaking noise and low in equipment failure rate.

Description

Technical Field

[0001] This utility model relates to the field of carbon emission monitoring, specifically a carbon emission monitoring device for construction sites. Background Technology

[0002] Carbon emission monitoring equipment is used to measure and manage carbon emissions during the construction process. It draws air into the equipment, filters it, and then monitors the carbon content. Due to the dusty environment at construction sites, filter clogging is a prominent problem.

[0003] The invention patent application number CN202411702413.4 discloses a carbon emission monitoring device for building construction. In order to avoid damage such as pilling and wear to the dustproof cloth caused by prolonged brushing, the device uses a counterweight to make the dustproof cloth shake back and forth and a striking rod to strike the support to make the dustproof cloth vibrate. Combined with centrifugal force, the dust on the dustproof cloth is supposed to fall off. However, shaking and centrifugal force can only shake off a small amount of floating dust on the dustproof cloth, and the effect is minimal. Moreover, shaking and striking not only generate noise during the operation of the equipment, but also significantly increase the failure rate of the equipment. Summary of the Invention

[0004] This utility model provides a carbon emission monitoring device for construction sites, aiming to solve problems such as poor filter cleaning effect, rapid filter wear, high equipment noise, and high failure rate in carbon emission monitoring equipment.

[0005] The technical solution includes a shell, which consists of a main cylinder and a branch cylinder. The main cylinder has a partition that divides it into left and right chambers. The branch cylinder is perpendicular to the main cylinder and communicates with the left chamber of the main cylinder. A monitoring instrument is installed in the right chamber of the main cylinder, and a rotatable filter cylinder is coaxially installed in the left chamber of the main cylinder. The right end of the filter cylinder extends through the partition into the right chamber of the main cylinder. An air inlet is provided at the upper end of the branch cylinder, and an air outlet is provided at the right end of the main cylinder. A first fan is installed inside the branch cylinder. An axial slot is opened on the lower side of the main cylinder. A strip parallel to the slot is fixed on both sides of the inner end of the slot. The strips are in contact with and sealed to the outer wall of the filter cylinder.

[0006] The right chamber of the main cylinder is equipped with a second fan. The second fan rotates in the forward direction to draw air from the main cylinder and then discharge it from the air outlet.

[0007] The filter cartridge consists of a cage-like frame and a first dustproof cloth wrapped around the outside of the cage-like frame.

[0008] A second dustproof cloth is provided outside the air outlet.

[0009] A sealing ring is installed between the right side wall of the filter cartridge and the partition plate, and a sealing strip is installed between the strip plate and the side wall of the filter cartridge.

[0010] The right end of the main cylinder and the upper end of the support cylinder are both provided with detachable end caps.

[0011] The circumferential span angle of the groove shall not exceed 10 degrees.

[0012] This invention can perform a small-force, immediate backflushing cleaning of the filter cartridge during normal filtration, effectively slowing down the rate of filter cartridge clogging; and can perform a large-force backflushing cleaning when the filter cartridge is severely clogged, ensuring the backflushing cleaning effect; moreover, the equipment operates smoothly without knocking or shaking noise, and has a low failure rate. Attached Figure Description

[0013] Figure 1 This is the front view of the present invention.

[0014] Figure 2 This is a front sectional view of the present invention.

[0015] Figure 3 This is a left sectional view of the present invention.

[0016] Figure 4 This is a three-dimensional sectional view of the present invention.

[0017] Figure 5 This is a three-dimensional sectional view of the shell.

[0018] Figure 6 This is a 3D view of the filter cartridge.

[0019] Figure 7 for Figure 2 A magnified view of position A in the middle.

[0020] Figure 8 for Figure 3 A magnified view of position B in the middle. Detailed Implementation

[0021] Referring to the accompanying drawings, this utility model includes a shell, which consists of a main cylinder 1 and a support cylinder 2. A partition 3 is installed inside the main cylinder 1, dividing it into left and right chambers. The support cylinder 2 is perpendicular to the main cylinder 1 and communicates with the left chamber. A monitoring instrument 4 is installed in the right chamber of the main cylinder 1 to monitor the carbon content in the air in real time. A rotatable filter cylinder 5 is coaxially installed in the left chamber of the main cylinder 1. The right end of the filter cylinder 5 extends through the partition 3 into the right chamber of the main cylinder 1. The partition 3 and the side wall of the filter cylinder 5 are rotatably sealed. An air inlet 6 is provided at the upper end of the support cylinder 2, and an air outlet 7 is provided at the right end of the main cylinder 1. A first fan 8 is installed inside the support cylinder 2. When the first fan 8 rotates, it... Outside air is drawn into the support cylinder 2 through the air inlet 6 and passes through the side wall of the filter cylinder 5 into the filter cylinder 5. Then, it enters the right chamber of the main cylinder 1 from the right end of the filter cylinder 5 and is blown out from the air outlet 7. The air filtered by the filter cylinder 5 is monitored for carbon content by the monitoring instrument 4 in the chamber. The main cylinder 1 has an axial slot 9 on its lower side. A strip plate 10 parallel to the slot 9 is fixed on both sides of the inner end of the slot 9. The strip plate 10 is in contact with and sealed to the outer wall of the filter cylinder 5. Most of the air volume entering the filter cylinder 5 enters the right chamber of the main cylinder 1 from the right port of the filter cylinder 5. A small portion of the air volume reverses and passes through the side wall of the filter cylinder 5 and is blown out from the slot 9 to back-blown and clean the filter cylinder 5 at the slot 9 position.

[0022] The right chamber of the main cylinder 1 is equipped with a second fan 11. The second fan 11 rotates in the forward direction to draw air from the main cylinder 1 and then discharge it from the air outlet 7. During normal filtration, the second fan 11 is started. Under the suction action of the second fan 11, most of the air volume is discharged from the air outlet 7, and less air volume is blown out from the slot 9. When backflushing is required, the second fan 11 is turned off. Under the action of the blade resistance of the second fan 11, the air volume at the air outlet 7 is significantly reduced, and the air volume at the slot 9 is significantly increased, realizing backflushing of the filter cylinder 5 at the slot 9. Rotating the filter cylinder 5 realizes backflushing of the entire side wall. If the second fan 11 is started in the reverse direction, the air volume at the slot 9 is further increased, and the backflushing force is further increased.

[0023] The filter cartridge 5 consists of a cage-like frame 12 and a first dustproof cloth 13 wrapped around the outside of the cage-like frame 12. The right end of the cage-like frame 12 is rotatably engaged with the partition 3, and the left end of the cage-like frame 12 is connected to a rotating shaft with the left end of the rotating shaft extending out of the left end face of the main cartridge 1 for connection with the drive motor.

[0024] The air outlet 7 is provided with a second dustproof cloth 14 to prevent dust from entering the main cylinder 1 through the air outlet 7 when the second fan 11 is started in reverse.

[0025] A sealing ring 15 is installed between the right side wall of the filter cylinder 5 and the partition plate 3, and a sealing strip 16 is installed between the strip plate 10 and the side wall of the filter cylinder 5 to ensure that there is no air leakage at the joint.

[0026] The right end of the main cylinder 1 and the upper end of the support cylinder 2 are both provided with detachable end caps 17. The end caps 17 are connected to the housing by means of threads or flanges, so that the fan, filter cylinder 5, monitoring instrument 4, etc. can be installed in the housing.

[0027] The circumferential span angle of the slot 9 shall not exceed 10 degrees to avoid a large amount of air leakage from the slot 9 during filtration and to ensure a high air pressure during backflushing.

[0028] During operation, the first fan 8 draws outside air into the housing through the air inlet 6. The air passes through the side wall of the filter cartridge 5 and enters the filter cartridge 5. The second fan 11 starts in the forward direction and discharges the air in the filter cartridge 5 through the air outlet 7. The carbon content of the filtered air is detected by the monitoring instrument 4 in the right chamber. When the second fan 11 rotates in the forward direction, most of the air volume is discharged from the air outlet 7, and the amount of air leaking from the slot 9 is small. This is suitable for immediate cleaning of the filter cartridge 5 when the blockage is not serious. Cleaning while using the filter cartridge 5 can effectively slow down the blockage rate of the filter cartridge 5.

[0029] When the filter cartridge 5 is severely clogged, the second fan 11 is turned off. When the air blows to the right across the blades of the second fan 11, the second fan 11 rotates passively, which will create resistance to the airflow. This will significantly reduce the airflow at the outlet 7, while significantly increasing the airflow at the slot 9, thereby increasing the back-blowing force. If necessary, the second fan 11 can be reversed and started, turning the outlet 7 into an intake. This will further increase the airflow and air pressure at the slot 9, and further increase the back-blowing force.

[0030] This invention can perform a small-force, immediate backflushing cleaning of the filter cartridge 5 during normal filtration, effectively slowing down the clogging speed of the filter cartridge 5; and can perform a large-force backflushing cleaning when the filter cartridge 5 is severely clogged, ensuring the backflushing cleaning effect; moreover, the equipment operates smoothly without knocking or shaking noise, and has a low failure rate.

Claims

1. A carbon emission monitoring device for construction sites, comprising a housing, characterized in that, The shell consists of a main cylinder (1) and a branch cylinder (2). The main cylinder (1) is equipped with a partition (3), which divides the main cylinder (1) into two chambers, left and right. The branch cylinder (2) is perpendicular to the main cylinder (1) and communicates with the left chamber of the main cylinder (1). The right chamber of the main cylinder (1) is equipped with a monitoring instrument (4). The left chamber of the main cylinder (1) is coaxially equipped with a rotatable filter cylinder (5). The right end of the filter cylinder (5) extends through the partition (3) to the right chamber of the main cylinder (1). The upper end of the branch cylinder (2) is provided with an air inlet (6), and the right end of the main cylinder (1) is provided with an air outlet (7). The branch cylinder (2) is equipped with a first fan (8). The lower side of the main cylinder (1) has an axial slot (9). The inner ends of the slot (9) are respectively fixed with a strip (10) parallel to the slot (9). The strip (10) is in contact with the outer wall of the filter cylinder (5) and sealed.

2. The carbon emission monitoring device for construction sites according to claim 1, characterized in that, The right chamber of the main cylinder (1) is equipped with a second fan (11). The second fan (11) rotates in the forward direction to draw air from the main cylinder (1) and then discharge it from the air outlet (7).

3. The carbon emission monitoring device for construction sites according to claim 1, characterized in that, The filter cartridge (5) consists of a cage-like frame (12) and a first dustproof cloth (13) wrapped around the outside of the cage-like frame (12).

4. The carbon emission monitoring device for construction sites according to claim 1, characterized in that, The air outlet (7) is provided with a second dustproof cloth (14).

5. A construction site carbon emission monitoring device according to claim 1 or 3, characterized in that, A sealing ring (15) is installed between the right side wall of the filter cylinder (5) and the partition plate (3), and a sealing strip (16) is installed between the strip plate (10) and the side wall of the filter cylinder (5).

6. A carbon emission monitoring device for construction sites according to claim 1, characterized in that, The right end of the main cylinder (1) and the upper end of the support cylinder (2) are both provided with detachable end caps (17).

7. A carbon emission monitoring device for construction sites according to claim 1, characterized in that, The circumferential span angle of the groove (9) shall not exceed 10 degrees.

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