51results about How to "Maintain internal and external pressure balance" patented technology

An intelligent waste gas treatment device (100) is used for treating waste gas of processing equipment (200) with six internal working stations (201). The processing equipment (200) comprises the internal working stations (201) evenly arranged in the circumferential direction, all the internal working stations (201) are communicated with an annular gas collection pipe (306) detachably installed on the processing equipment (200) through connecting pipes (202), and a detachable gas delivery pipe (301) used for being communicated with the waste gas treatment device (100) located in the center of the processing equipment (200) is arranged on the annular gas collection pipe (306); accordingly, processing waste gas generated in the internal working stations (201) is firstly delivered into the annular gas collection pipe (306) and then delivered into the waste gas treatment device (100) from the annular gas collection pipe (306) to be filtered.

An intelligent exhaust gas treatment device (100) convenient to clean is used for treating exhaust gas produced by processing equipment (200) which is provided with a plurality of inner work stations (201), wherein the processing equipment (200) comprises the six inner work stations (201) uniformly arrayed in the peripheral direction; each of the six inner work stations (201) is communicated with an annular gas accumulating pipe (306) through connecting pipes (202); the annular gas accumulating pipe (306) is detachably mounted on the processing equipment (200); a detachable gas delivery pipe (301) is arranged on the annular gas accumulating pipe (306) and is used for being communicated with the exhaust gas treatment device (100) positioned at the center of the processing equipment (200), so that processing exhaust gas produced in each of the six inner work stations (201) is firstly delivered into the annular gas accumulating pipe (306), and is then delivered into the exhaust gas treatment device (100) to be filtered from the annular gas accumulating pipe (306).

Provided is an easily cleaned exhaust gas treatment apparatus (100) that is used to treat exhaust gas of a processing device (200) that has multiple internal workstations (201). The processing device (200) comprises six internal workstations (201) that are uniformly arranged in a circumferential direction; each of the internal workstations (201) is communicated, through a connecting pipe (202), with an annular gas gathering pipe (306) that can be detachably mounted on the processing device (200); a gas delivery pipe (301) is provided on the annular gas gathering pipe (306); the gas delivery pipe (301) is used to be communicated with the exhaust gas treatment apparatus (100) that is located in the center of the processing device (200), and the gas delivery pipe is detachable; therefore, processing exhaust gas generated in each of the internal workstations (201) is firstly delivered to the annular gas gathering pipe (306), and then is delivered from the annular gas gathering pipe (306) to the exhaust gas treatment apparatus (100) for filtration.

A noise-reduction waste gas processing device (100) is used for processing waste gas of a machining device (200) with a plurality of inner workstations (201). The machining device (200) comprises the six inner workstations (201) which are evenly arrayed in the circumferential direction. Each inner workstation (201) is communicated with the waste gas processing device (100) located at the center of the machining device (200) through a connection pipe (202). Therefore, machining waste gas generated in each inner workstation (201) can be sent into the waste gas processing device (100) to be filtered. The waste gas processing device (100) comprises a supporting frame, six waste gas filtering column units arranged in the supporting frame, and a bottom annular plate (300) arranged at the bottom of the supporting frame and provided with waste gas inlet pipelines (71) used for connecting all the waste gas filtering column units with the connection pipes (202).

The invention discloses a waste gas processing device (100) convenient for maintenance. The provided waste gas processing device (100) is used to process waste gas in processing equipment (200), which is provided with a plurality of inner work stations (201). The processing equipment (200) comprises six inner work stations (201), which are evenly arranged on the circumferential direction; each inner work station (201) is communicated with the waste gas processing device (100) which is arranged on the center of the processing equipment (200) through a connection pipe (202); thus the processing waste gas generated in each inner work station (201) can be pumped to the waste gas processing device (100), the waste gas is filtered in the waste gas processing device (100); the waste gas processing device (100) comprises a support frame, six waste gas filtering cylinder units, which are arranged in the support frame, and a bottom circular plate (300), which is arranged on the bottom of the support frame and is used to connect each waste gas filtering cylinder unit to the connection pipe (202), of a waste gas inlet pipeline (71).

The invention discloses a method for repairing deep pits. The method comprises the following steps: cleaning and loosening soil; drawing an integral structure chart of pits; establishing a fixed bar-mat reinforcement cage and arranging preserved holes; casting concrete at the bottom; inflating an air bag; adding concrete for pouring solidification to form the early form of an enclosed container; exhausting the air bag to get away from the early form; carrying out plastic spraying or brush coating of cement slurry; spraying or brush coating an elastic waterproof material; installing pipelines and functional valves; and filing and discharging a supercharging medium. The enclosed cavity is formed into a pressurized enclosed cavity capable of realizing self-adjustment of inner pressure intensity and outer pressure intensity, valve switches can suffer from the change of pressure intensity so as to control the supercharging medium to come in or out of the enclosed cavity, so that the inner air pressure and the outer air pressure of the enclosed cavity are adjusted to be balanced to keep the stability to form a structure similar to a supercharging pneumatic tire, a large quantity of repair material resources are saved, and the construction is easy.