4 results about "Ventilation tube" patented technology

The invention discloses a cyclone spraying activated carbon adsorption composite dust remover for a pavement maintenance truck. The dust remover comprises a dust remover body, the dust remover body comprises a cyclone cylinder, a spraying device and an activated carbon box which are sequentially connected through ventilation pipes, the cyclone cylinder is composed of an inner cylinder body and an outer cylinder body, a spiral plate is arranged between the inner cylinder body and the outer cylinder body, the spiral plate is wound on the outer side wall of the inner cylinder body, an ash discharge port is formed in the bottom of the outer cylinder body below the spiral plate, a spraying air inlet is formed in the side body of one side of the outer cylinder above the ash discharge port, an air inlet is formed in the bottom of the inner cylinder, an air outlet is formed in the top of the inner cylinder body, the air outlet is connected with the air inlet through a ventilation pipe, a spraying air outlet is further formed in the spraying device and connected with an inlet formed in the activated carbon box through a ventilation pipeline, activated carbon is placed in the activated carbon box, and a gas exhaust port is further formed in the activated carbon box. The dust remover has the characteristics of reasonable structure, easiness in maintenance, good filtering effect and the like.

The invention provides a temperature and humidity adjusting system, a control method thereof and a station structure. The temperature and humidity adjusting system comprises a ventilation pipeline, afirst heat exchange mechanism, a second heat exchange mechanism and an air supply fan, and a fresh air opening has a first state that the fresh air opening is communicated with a first heat exchange area and a second state that the fresh air opening is communicated with a first circulation channel; and an air return opening has a third state that the air return opening is communicated with the first heat exchange area and a fourth state that the air return opening is communicated with the first circulation channel. According to the temperature and humidity adjusting system, the control methodof the temperature and humidity adjusting system and the station structure, a first heat exchange section and a second heat exchange section are arranged, the first heat exchange area, the first circulation channel, a second heat exchange area and a second circulation channel are formed, and different heat exchange paths and circulation paths are provided for fresh air and return air; and the problem that in the prior art, resistance is too large is effectively solved, refrigeration of multiple modes is achieved according to control of five air valves, and the control precision of indoor refrigeration is improved.

The invention discloses a solar soil maintaining device for saline and alkaline land. The solar soil maintaining device comprises a hollow tube, and first circular holes which are arrayed in a crossed mode are formed in the outer wall of the hollow tube. A ventilation tube is sleeved with the hollow tube, and second circular holes which are arrayed in a crossed mode are also formed in the outer wall of the ventilation tube. Connecting tubes are connected between the first circular holes and the second circular holes. A metal wire is wound on the outer wall of the hollow tube. The connecting tubes are obliquely arranged. The ends, located at the second circular holes, of the connecting tubes are higher than the ends, located at the first circular holes, of the connecting tubes. According to the solar soil maintaining device, injurious insects can be killed through high-temperature heating, insect bodies are used for fertilizing soil, air is inflated into the soil so that the soil can be made fluffy, and evaporation of pollutants is accelerated; solar energy is used for supplying electricity, hence, energy can be saved, and pollution can be reduced.