The invention provides a planar inflation sealing device for a tank opening of a tank truck. A sealing upper cover (8) is arranged above the tank opening (10); a planar air bag (5) is arranged between the sealing upper cover and the tank opening, and is connected to an inflating opening (3) formed in the sealing upper cover; and a crane pipe (1) which extends to the inside of the tank truck is arranged in the middle of the sealing upper cover. The planar air bag is arranged on the lower surface of the sealing upper cover, the crane pipe is arranged in the middle of the sealing upper cover, the crane pipe and the tank opening are sealed well, and the planar air bag is effectively protected against being damaged. The planar inflation sealing device for the tank opening of the tank truck has the advantages of simple structure, high sealing effect, convenience in operation and the like. The planar inflation sealing device is suitable to be popularized and used widely.

Planar inflation sealing device for tank opening of tank truck

The invention discloses a novel upper-mounted crane pipe airbag-type sealing device and belongs to the technical field of crane tubes The novel upper-mounted crane pipe capsule-type sealing device comprises a vertical stretching pipe, a gas-phase pipe, a cover plate, an inverted circular-truncated cone and an airbag stretching device; the inverted circular-truncated cone is fixed on the lower end of the cover plate and is coaxially arranged with the same, an annular groove is formed in the position of the center of the cover plate along the vertical direction, the airbag stretching pipe comprises a plurality of sleeves, an airbag, a pressure chamber, a gas-phase intake pipe and a push plate, the push plate is inwardly fixedly connected with the sleeves, and each sleeve comprises a sleeve bar, a socket and a spring By the arrangement, the problem about untight sealing due to the fact that tank openings of an oil tank truck are different in size can be solved, the airbag of a sealing cover is pressed on the tank opening of the oil tank truck through pressure difference, friction of the airbag with the tank opening of the tank truck can be avoided during loading and unloading, and generation of abrasion even breakage is avoided

Novel upper-mounted crane pipe airbag-type sealing device

The invention discloses an air conditioner unit box integrated type self-sealing structure. The air conditioner unit box integrated type self-sealing structure comprises cover plates and an air inflated rubber gasket body. Each cover plate is of a halfpace structure, and the cover plates are combined and fixed to form an integrated box body. The periphery of the top of the halfpace structure of each cover plate is provided with an air inflated sealing ring groove, after the cover plates are combined and fixed, a closed whole is formed through the air inflated sealing ring grooves, and the airinflated rubber gasket body is arranged in the closed whole. According to the air conditioner unit box integrated type self-sealing structure, the air inflated rubber gasket body can achieve an excellent sealing effect with positive pressure or negative pressure in an air conditioner unit, and the larger the pressure in the air conditioner unit is, the better the sealing performance is. The sealing failure of the air inflated rubber gasket body can be judged through the air pressure of the air inflected rubber gasket body, meanwhile, when the whole air inflated rubber gasket body is changed, destructive treatment does not exist, and operation is very convenient.

Air conditioner unit box integrated type self-sealing structure

The invention relates to an air sac type airtight cover plate used for an energy-saving and environmental-friendly cleaning device for a storage tank or a tank car. The air sac type airtight cover plate comprises an aluminum alloy cover plate body connected with the tank car, an air sac guide frame and an air sac supporting plate. Air sacs I connected with air sac inflating and exhausting tubes I are symmetrically arranged at the two ends of the air sac guide frame correspondingly. Air sacs II connected with air sac inflating and exhausting tubes II are symmetrically arranged at the two ends of the air sac supporting plate correspondingly. An airtight cover plate locking device I is connected to one end of the aluminum alloy cover plate body; and the other end of the aluminum alloy cover plate body is connected with an airtight cover plate locking device II. A pH value instrument detecting rod outer sleeve, a multifunctional gas-liquid spray tube outer sleeve, a flammable gas analyzer detecting rod outer sleeve, a rotary sprayer tube, a temperature measurement detecting rod outer sleeve, a residual waste water extraction tube outer sleeve, an oxygen content instrument detecting rod outer sleeve and an air replacement tube are arranged in the positions, between the airtight cover plate locking device I and the airtight cover plate locking device II, of the aluminum alloy cover plate body. The aluminum alloy cover plate body is connected with a cap mouth of the tank car through a bellows soft seal ring. The air sac type airtight cover plate used for the energy-saving and environmental-friendly cleaning device for the storage tank or the tank car is free of pollution and capable of saving water and realizing online detection.

Air sac type airtight cover plate used for energy-saving and environmental-friendly cleaning device for storage tank or tank car

The invention relates to a multifunction multi-airbag leakage-free gas recycling closed tank car cover plate device, which is characterized in that: a cover plate 1 is of a circular flat plate, a circular flat ring-shaped cover plate airbag sealing ring (34) is adhered onto the lower surface of the circular flat plate, an airbag guide fixed bracket (7) is nested inside a conical cover plate airbag sealing ring (134), and the lower end of the airbag fixed bracket (7) is connected with a spring hook (20) of a corrugated pipe (19). A reversed tower-shaped airbag guide fixed bracket (207) is arranged below a circular flat ring-shaped flexible sealing ring cover plate, and the interlayer between the airbag guide fixed bracket (7) and the reversed tower-shaped airbag fixed bracket (207) is provided with airbag sealing rings (80) and (120). An airbag ring charging-discharging pipe (10), an airbag charging-discharging tee manual valve (8) and an airbag charging control valve (9) are arranged inside the airbag sealing ring (80). The airbag charging-discharging pipe extends out of the cover plate (1) through an airbag charging-discharging pipe hole (42). The device has simple structure, adopts multiple airbags to seal, is safe and reliable to use, and has high recycling efficiency. The device is free from leakage and pollution, conforms to the national environmental protection and safety requirement and conforms to the intrinsic explosion-proof requirement under the sealing, and loading arms which are used under different work conditions can be matched and can conform to the diameter and the height of the entrance hole of the tank car. The recycling rate of the gas is improved.

Baiwei Chen

Papers

Multifunction multi-airbag leakage-free gas recycling closed tank car cover plate device