7results about How to "Increase exhaust" patented technology

The utility model discloses a regulating valve and cooking utensil, the regulating valve includes valve body and valve seat, the valve seat is equipped with the air inlet hole, at least part of valve body is located in the valve seat, the valve body is equipped with the first air outlet hole and the second air outlet hole of interval arrangement, the regulating valve still includes the supplementary airflow channel, the first air outlet hole is linked together with the air inlet hole, and the second air outlet hole is linked together with the air inlet hole through the supplementary airflow channel. The regulating valve of utility model embodiment is good in spill-proof effect, and high in safety.

This invention relates to the field of air conditioning technology, specifically to a fresh air module and a fresh air air conditioner. The fresh air module includes a fan, a first chamber, and a second chamber. The first chamber is connected to the air inlet of the fan, and the second chamber is connected to the air outlet of the fan. The first chamber has a fresh air inlet and a first stale air inlet, and the second chamber has a fresh air outlet and a stale air outlet. Both the fresh air outlet and the first stale air inlet are connected to the interior, and both the fresh air inlet and the stale air outlet are connected to the exterior. A second stale air inlet is located on the side wall of the fresh air outlet and is connected to the first chamber. Valves are provided at the inner end of the fresh air outlet, the fresh air inlet, the first stale air inlet, the stale air outlet, and the second stale air inlet. The fresh air module and fresh air air conditioner provided by this invention have high extraction efficiency, fast indoor air renewal speed, excellent exhaust effect, reasonable structural space utilization, and are more aesthetically pleasing.

This invention discloses a precise differential pressure control system and method for clean areas in pharmaceutical production workshops, including a supply fan, an exhaust fan, a return air volume detection device, an air volume control valve, a differential pressure gauge, a gas flow meter, an angle sensor, and a monitoring module. The monitoring module stores a preset pressure range and a preset adjustment time for each clean area. When the monitoring module detects that the actual pressure value of the clean area is outside the preset pressure range, it generates a corresponding control command based on the magnitude of the deviation and the preset adjustment time. The control module receives the control command and adjusts the speed of the exhaust fan and the opening of the air volume control valve accordingly. This invention achieves intelligent adjustment of clean room pressure by controlling the air volume of the clean room through the monitoring module. Furthermore, the monitoring module can intelligently adjust the speed of the exhaust fan according to the actual pressure, thereby achieving rapid adjustment of the negative pressure clean room pressure.

The application discloses a bubble-removing and exhausting mechanism of an injection mold, and relates to the technical field of mold exhaust, which comprises a mold body, a pair of exhaust channels, and a cooling box. The mold body is firmly installed on an injection table. The pair of exhaust channels are provided through the bottom region of the mold body. The cooling box is installed on the injection table and is located below the mold body. Two independent cooling cavities are formed in the cooling box. A cooling assembly is fixedly installed in each cooling cavity. The application adopts a two-channel exhaust design controlled in stages, realizes flexible switching between single-cooling assembly operation and double-cooling assembly operation at the same time, meets the processing demand of a small amount of gas in the initial injection stage, can greatly improve the exhaust capacity by simultaneously opening the two channels in the late injection stage, avoids long-time overheating of a single component, and thus guarantees the continuous operation efficiency of the device as a whole and the service life of the cooling assembly.

The application discloses a new energy mine card water cooling machine shell low-pressure casting mold and a casting process, an annular pressure storage cavity is formed above the parting surface of the upper mold steel core and the bottom mold steel core on the upper mold steel core, an upper mold water cooling cavity is formed in the upper mold steel core, a bottom mold water cooling cavity is formed in the bottom mold steel core, a plurality of feeding risers are arranged on the top of the upper mold steel core, a plurality of positioning seats are uniformly arranged on the outer side of the mold steel core on the bottom mold, a positioning sliding plate is slidably arranged in the opening of the positioning seat, a pushing mechanism is used for driving the positioning sliding plate to ascend and descend, and four pouring gates are arranged in the 45-degree direction of the bottom mold sand core positioning. The mold structure is designed in three layers of feeding and cooperates with two layers of chilling scheme, the product height is divided into two by the feeding of the middle two layers, the feeding effect is improved, and the casting problem of insufficient feeding distance of the product with high height is solved; the positioning sliding plate of the sand core positioning can automatically ascend and descend, the feeding of the casting liquid is avoided, and the finished product quality of the casting is improved.

The utility model belongs to the field of agriculture, concretely is a kind of agricultural greenhouse exhaust device, including fan;The air inlet end of the fan is detachably installed with flexible air pipe by flange plate, one end of the flexible air pipe away from fan is fixedly connected with pipe seat, the both ends of the pipe seat are all installed with multiple negative pressure pipes, two adjacent negative pressure pipes are interconnected, the bottom of the negative pressure pipe is installed with air inlet, in use, multiple negative pressure pipes are interconnected, and the negative pressure pipe located at end portion is sealed using plug, negative pressure pipe is installed in the inside of big -arch shelter, when needing forced exhaust, fan is transported to big -arch shelter planting area, staff connects between fan and flexible air pipe by flange plate, then fan starts and generates negative pressure, negative pressure passes through negative pressure pipe and lower air inlet, to distribute negative pressure in the inside of big -arch shelter, to improve the uniformity of big -arch shelter air inlet, to reduce the use amount of fan, facilitate staff to exhaust big -arch shelter.