阅读说明：本技术 一种基于压力检测的自动脉冲除尘清理系统及方法 (Automatic pulse dust removal cleaning system and method based on pressure detection ) 是由 程磊 单龙 张安 温玉霜 朱邦龙 刘天波 孙永强 于 2020-05-06 设计创作，主要内容包括：本发明公开了一种基于压力检测的自动脉冲除尘清理系统及方法,该系统包括净化气室和过滤气室,过滤气室和垃圾箱相连通,过滤气室内安装有滤筒,净化气室内连接有气包和脉冲阀,气包和脉冲阀相连通,脉冲阀的底端贯穿净化气室并伸入至滤筒内,脉冲阀的底端安装有喷气孔；净化室内连接有压差计,压差计包括第一测口和第二测口,第一测口用于检测净化气室的压力,第二测口通过气管和过滤气室相连通,第二测口用于检测过滤气室的压力；压差计和脉冲阀均和控制显示装置通信连接；本发明通过压差计检测滤筒内外侧的压力差,达到检测滤筒堵塞的情况,减少滤筒堵塞后需要人工拆卸进行清理的麻烦。(The invention discloses an automatic pulse dust removal cleaning system and method based on pressure detection, the system comprises a purification air chamber and a filtering air chamber, the filtering air chamber is communicated with a garbage can, a filter cartridge is arranged in the filtering air chamber, an air bag and a pulse valve are connected in the purification air chamber, the air bag is communicated with the pulse valve, the bottom end of the pulse valve penetrates through the purification air chamber and extends into the filter cartridge, and an air jet hole is arranged at the bottom end of the pulse valve; the differential pressure gauge is connected in the purifying chamber and comprises a first measuring port and a second measuring port, the first measuring port is used for detecting the pressure of the purifying gas chamber, the second measuring port is communicated with the filtering gas chamber through a gas pipe, and the second measuring port is used for detecting the pressure of the filtering gas chamber; the differential pressure meter and the pulse valve are in communication connection with the control display device; the invention detects the pressure difference between the inner side and the outer side of the filter cylinder through the pressure difference meter, thereby achieving the purpose of detecting the blockage of the filter cylinder and reducing the trouble that the filter cylinder needs to be manually disassembled for cleaning after being blocked.)

1. An automatic pulse dust removal cleaning system based on pressure detection is characterized by comprising a purification air chamber and a filtration air chamber, wherein the filtration air chamber is communicated with a garbage can, a filter cartridge is arranged in the filtration air chamber, an air bag and a pulse valve are connected in the purification air chamber, the air bag is communicated with the pulse valve, the bottom end of the pulse valve penetrates through the purification air chamber and extends into the filter cartridge, and an air jet hole is arranged at the bottom end of the pulse valve;

a differential pressure gauge is connected in the purifying chamber and comprises a first measuring port and a second measuring port, the first measuring port is used for detecting the pressure of the purifying chamber, the second measuring port is communicated with the filtering chamber through an air pipe, and the second measuring port is used for detecting the pressure of the filtering chamber;

the differential pressure meter and the pulse valve are in communication connection with a control display device, the control display device is used for displaying the value of the differential pressure meter, and the control display device is used for adjusting the parameters of the pulse valve.

2. The automatic pulse dust removal cleaning system based on pressure detection as claimed in claim 1, wherein the control display device is installed in a cab.

3. The automatic pulse dust removal cleaning system based on pressure detection as claimed in claim 1, wherein the control display device comprises a cab controller and a monitor; the monitor is in communication connection with the differential pressure gauge, and the monitor and the pulse valve are both in communication connection with the cab controller.

4. The automatic pulse dust removal cleaning system based on pressure detection as claimed in claim 1, wherein the purifying air chamber and the filtering air chamber are an integral box body, and a partition plate connected in the box body divides the box body into the purifying air chamber and the filtering air chamber.

5. An automatic pulse dust removal cleaning method based on pressure detection is characterized by comprising the following steps: monitoring a pressure differential between an interior of the filter cartridge and an exterior of the filter cartridge;

judging the relation between the pressure difference value and a first threshold value;

if the pressure difference value is larger than the first threshold value, adjusting the air injection time and the air injection interval of a pulse valve to a first set value, and if the pressure difference value is smaller than the first threshold value, continuously judging whether the pressure difference value is smaller than a second threshold value;

if the pressure difference value is larger than the second threshold value, the air injection time and the air injection interval of the pulse valve are adjusted to a second set value, and if the pressure difference value is smaller than the second threshold value, the air injection time and the air injection interval of the pulse valve do not need to be adjusted.

6. The automatic pulse dust removal cleaning method based on pressure detection as claimed in claim 5, wherein the step of monitoring the pressure difference comprises the steps of:

communicating a first port of a differential pressure gauge with an interior of the filter cartridge and a second port of the differential pressure gauge with an exterior of the filter cartridge;

and the differential pressure meter is in communication connection with a monitor in a cab, and the value of the differential pressure meter is monitored through the monitor.

Technical Field

The invention relates to the technical field of sanitation vehicles, in particular to an automatic pulse dust removal cleaning system and method based on pressure detection.

Background

In order to solve the problem of dust caused by no water during working of the conventional dry-type sweeping machine, a filtering cartridge is arranged in a box body. However, dust is often adsorbed on the filter cartridge in the working process, so that pneumatic conveying of the sweeping machine is blocked, the working effect is affected, and the problem is solved by increasing a reverse airflow to blow down the dust on the surface of the filter cartridge.

The reverse airflow can reduce the suction effect, and the unlimited reverse blowing flow is impossible, the prior art adopts the pulse dust removal technology, and the reverse blowing flow is carried out at a fixed time interval no matter what the effect is. The inventor finds that the existing pulse dust removal has the following defects: firstly, a user cannot judge whether the waste suction and pickup effect is poor or not due to the blockage of the filter cylinder; and secondly, the automatic feedback can not be carried out when the filter cylinder is blocked, so that the blockage can be dredged in advance. (according to the prior experience, the filter cartridge is easy to dredge in the early stage of the plugging trend) III, the plugging cleaning capability cannot be automatically adjusted according to the plugging condition of the filter cartridge, the filter cartridge is always completely plugged, the filter cartridge needs to be manually disassembled and cleaned, and the method is time-consuming, labor-consuming and very troublesome.

Disclosure of Invention

The invention aims to provide an automatic pulse dust removal cleaning system and method based on pressure detection, so as to solve one of the defects caused by the prior art.

In order to achieve the purpose, the invention is realized by adopting the following technical scheme:

an automatic pulse dust removal cleaning system based on pressure detection comprises a purification air chamber and a filtration air chamber, wherein the filtration air chamber is communicated with a garbage can, a filter cartridge is arranged in the filtration air chamber, an air bag and a pulse valve are connected in the purification air chamber, the air bag is communicated with the pulse valve, the bottom end of the pulse valve penetrates through the purification air chamber and extends into the filter cartridge, and an air injection hole is arranged at the bottom end of the pulse valve;

a differential pressure gauge is connected in the purifying chamber and comprises a first measuring port and a second measuring port, the first measuring port is used for detecting the pressure of the purifying chamber, the second measuring port is communicated with the filtering chamber through an air pipe, and the second measuring port is used for detecting the pressure of the filtering chamber;

the differential pressure meter and the pulse valve are in communication connection with a control display device, the control display device is used for displaying the value of the differential pressure meter, and the control display device is used for adjusting the parameters of the pulse valve.

Further, the control display device is installed in the cab. The driver is convenient to monitor and control the dust removal cleaning device.

Further, the control display device includes a cab controller and a monitor; the monitor is in communication connection with the differential pressure gauge, and the monitor and the pulse valve are both in communication connection with the cab controller.

Furthermore, the purifying air chamber and the filtering air chamber are integrated boxes, and the boxes are divided into the purifying air chamber and the filtering air chamber by the partition plates connected in the boxes.

The invention also provides an automatic pulse dust removal cleaning method based on pressure detection, which comprises the following steps:

monitoring a pressure differential between an interior of the filter cartridge and an exterior of the filter cartridge;

judging the relation between the pressure difference value and a first threshold value;

if the pressure difference value is larger than the first threshold value, adjusting the air injection time and the air injection interval of a pulse valve to a first set value, and if the pressure difference value is smaller than the first threshold value, continuously judging whether the pressure difference value is smaller than a second threshold value;

if the pressure difference value is larger than the second threshold value, the air injection time and the air injection interval of the pulse valve are adjusted to a second set value, and if the pressure difference value is smaller than the second threshold value, the air injection time and the air injection interval of the pulse valve do not need to be adjusted.

Further, the monitoring the pressure difference value comprises the following steps:

communicating a first port of a differential pressure gauge with an interior of the filter cartridge and a second port of the differential pressure gauge with an exterior of the filter cartridge;

and the differential pressure meter is in communication connection with a monitor in a cab, and the value of the differential pressure meter is monitored through the monitor.

According to the technical scheme, the embodiment of the invention at least has the following effects:

1. according to the invention, the pressure difference between the inner side and the outer side of the filter cylinder is detected through the pressure difference meter, the condition of the filter cylinder blockage is detected and fed back to an operator in real time, and the pulse time of the filter cylinder is automatically adjusted in a background according to the condition of the filter cylinder blockage, so that the blockage is solved optimally and fastest, and the trouble that the filter cylinder needs to be manually disassembled to be cleaned after being blocked is greatly reduced.

2. The monitor provided by the invention can monitor the differential pressure value of the differential pressure gauge, and whether the poor garbage suction and collection effect is caused by the blockage of the filter cylinder can be judged by monitoring the differential pressure value inside and outside the filter cylinder.

Drawings

FIG. 1 is a schematic structural diagram of an embodiment of the present invention;

FIG. 2 is a schematic view of the installation of the cab controller and monitor in accordance with an embodiment of the present invention.

Wherein: 1. a purification air chamber; 2. a filtering air chamber; 3. a filter cartridge; 4. air bags; 5. a pulse valve; 6. a gas injection hole; 7. a differential pressure gauge; 8. a first test port; 9. a second test port; 10. an air tube; 11. a partition plate; 12. a cab controller; 13. and a monitor.

Detailed Description

In order to make the technical means, the creation characteristics, the achievement purposes and the effects of the invention easy to understand, the invention is further described with the specific embodiments.

It should be noted that in the description of the present invention, the terms "front", "rear", "left", "right", "upper", "lower", "inner", "outer", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of describing the present invention but do not require that the present invention must be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention. As used in the description of the present invention, the terms "front," "back," "left," "right," "up," "down" and "in" refer to directions in the drawings, and the terms "inner" and "outer" refer to directions toward and away from, respectively, the geometric center of a particular component.