34results about How to "Avoid situations such as blockage" patented technology

The invention discloses an online hailing car management method for public transport hub parking lots. The online hailing carmanagement method comprises a management method of vehicles entering parking lots,online hailing carorder-sending and a management method of the vehicles leaving the parking lots. A parking lot management system divides the vehicles in the parking lots into social vehicles,onlinehailing cars carrying passengers and online hailingcars carrying no passengers. Whenvehicles leave the parking lots, the social vehicles and the online hailing cars carrying no passengers are charged according to the parking fee standard of the social vehicles and the online hailing cars carrying passengers are charged according to the parking fee standard of the online hailing cars. The parking cost of online hailing car drivers can be lowered and the initiative of the online hailing car drivers can be improved to enter the parking lots and wait. At the same time, the accessibility of apublic transport hub area can be improved to avoid congestion caused by too many online hailing cars waiting outside the parking lots.

The invention discloses a timed quantitative feeding device for a fish tank. The timed quantitative feeding device comprises a storage cylinder, a control box, a feeding tube, an air inlet tube, a storage disc, a feed sucking tube, an air sucking tube, a feed sucking disc, a weight sensor, a discharge tube, a motor and the like. As an air inlet tube is arranged at the lower end of the storage cylinder, and an air sucking tube is arranged at the lower end of the feed sucking tube, feed inside the storage cylinder can be transferred onto the feed sucking disc above the air sucking tube, the weight of the feed can be acquired through the weight sensor on the feed sucking disc, and then operation of the air sucking tube and the air inlet tube are controlled; a timer is adopted to control a motor to push a push plate to move forwards, a third electromagnetic valve is opened, the feed is poured into the fish tank from the discharge tube by using the push plate, then a timed quantitative feeding function of the fish tank is achieved, situations that excessive feed is poured, or the discharge hole is blocked, or the like, can be avoided; due to adoption of the control box outside the storage cylinder, timed and quantitative feeding can be set for the feeding device conveniently and rapidly. The timed quantitative feeding device is simple in structure, convenient to operate and high in intelligence degree.

The invention discloses a mud scraper for a sedimentation tank of a water purification plant, which comprises a sedimentation tank, a support column is arranged at the center of the bottom of the sedimentation tank, and a mounting seat is provided at the top of the support column, and the mounting seat A drive device is provided inside the drive device, a connecting piece is provided above the drive device, a fixing plate is provided on one side of the connecting piece, an extension plate is inserted into one end of the fixing plate, and the other end of the extension plate is set on side of the slide unit. In the present invention, a mud storage box is arranged on the rear side of the mud scraper. When the mud storage box moves downward, the door plate on the mud storage box is moved by using the block on the mud scraper. When cleaning the sedimentation tank, Under the action of the mud scraper, the sediment enters the mud storage box through the mud scraper, which is convenient for the cleaning and treatment of the sediment, and it is convenient for the device to be replaced when it can be applied to sedimentation tanks of other sizes, which is beneficial Device reuse.

The invention discloses a sludge stripping aid of a circulating cooling water system. The aid is prepared from the following raw materials in percentage by weight: 8 to 12 percent of sodium dodecyl benzene sulfonate, 4 to 6 percent of triethanolamine, 4 to 6 percent of polydimethylsiloxane, 12 to 18 percent of sodium polyacrylate and the balance of pure water, wherein the sludge stripping aid is used together with a strong oxidant to remove the sludge from the cooling circulating water system, so that the using amount of strong oxidant can be reduced by 40 to 60 percent compared with that of the strong oxidant which is used singly, the sludge can be slowly stripped in the form of small blocks and has high dispersibility in water and a little of foam, the sludge cleaning time is prolonged,the cleaning efficiency reaches over 99 percent, the aid has low corrosion to pipes of the cooling circulating water system, the service life of the cooling circulating water system is prolonged, phenomena such as blockage and the like are avoided, and safe operation of the cooling circulating water system is guaranteed; and thus, the aid has the advantages of reducing the amount of the used strong oxidant, reducing the corrosion of the strong oxidant to the metal pipe, prolonging the effective time of the sludge stripping and improving the cleaning rate.

The invention discloses an inspection well cover with the automatic opening-closing function and relates to an inspection well cover. Currently, the water leakage portions of city inspection well ditch cover plates are normally open, and consequently a larger amount of garbage enters a sewer and pollutes a river. The inspection well cover with the automatic opening-closing function comprises a cover plate, a drum opening-closing plate, a tension spring, a drum opening-closing plate control device, wherein the drum opening-closing plate control device comprises a water collecting trough provided with a draining opening, a pulling rope, a balance weight floating ball connected with the lower end of the pulling rope and a rotary shaft disposed on the lower end face of the cover plate; one endof the tension spring is connected with the lower end face of the cover plate, the other end of the tension spring is connected with the drum opening-closing plate, the pulling rope penetrates through a gap between the cover plate and the rotary shaft, and the balance weight floating ball at the lower end of the pulling rope is arranged in the water collecting trough in a suspending mode; the drum opening-closing plate comprises a plurality of drums which are distributed side by side and connecting parts used for being connected with the adjacent drums, and the drums are parallel to a water passing trough; and the distance between the adjacent drums is matched with the distance between the cover plate and the water passing trough. According to the technical scheme, the drum opening-closing plate is arranged, the bottom of the water passing trough is sealed when no rainwater falls, and therefore the garbage is prevented from entering the sewer.

The invention discloses an integrated gas purification and dehydration device, which includes a first filter device, a second filter device and a third filter device. The first filter device is used for preliminary filtering of the gas to remove solid particulate impurities contained in the natural gas. It can preliminarily remove condensate or liquid droplets contained in natural gas; the second filtering device can perform secondary filtration on natural gas, further dehydrate the gas, and remove residual water vapor in the gas; the third filtering device can filter the gas three times to remove The impurity gas is removed while the water vapor remains, so as to realize the purification and dehydration of natural gas. The design of the first air outlet pipe and the second air outlet pipe in this technical solution is used to realize the connection between the first filter device, the second filter device and the third filter device; It not only improves the purification and dehydration effect of natural gas, but also improves the dehydration efficiency, and has high practicability.