30results about How to "Constant liquid level" patented technology

The invention provides a movable overflow type hydraulic brake saline water tank, which belongs to the field of generator experiment equipment and comprises a work tank, a water storage tank, an electrode plate and a busbar, wherein the electrode plate is positioned in the work tank, the busbar is connected with the electrode plate, the work tank is positioned above the water storage tank, the movable overflow type hydraulic brake saline water tank also comprises a water pump station and an overflow door, the overflow door consists of a door frame and a hydraulic door, the door frame is fixedat an opening part of the side surface of the work tank, the hydraulic door can move upwards and downwards along the door frame and can be fixed in any position of the door frame through a fixing element, the top end of the hydraulic door is provided with an overflow groove, the bottom of the overflow groove is provided with a pipeline communicated to the water storage tank, and the water pump station is respectively connected with the work tank and the water storage tank through pipelines. The overflow door and the water pump are adopted, water can be continuously circulated, the load can not be changed, a cooling effect is realized, the problem of load fluctuation caused by serious violent boiling is also solved, and the movable overflow type hydraulic brake saline water tank also has the advantages that the load does not need to be frequently regulated, and the carrying capability is great. The movable overflow type hydraulic brake saline water tank can be widely applied to large-scale generator tests.

The invention discloses a method to continual produce high-concentration sodium hypochlorite, which comprises: generating sodium hypochlorite solution, depositing for desalinization, and discharging salt. Wherein, the opposite device comprises a chloridization kettle inserted with two groups of inlet chlorine pipes, a group of subsiders in series, a salt mud tank, and a centrifuge. Wherein, the reaction kettle comprises a reaction area and a deposition area; forcing the qualified sodium hypochlorite supernatant into deposition slot through overflow port. This invention can keep the liquid level invariable and production continual, and has no pollution to environment.

The invention provides a brake fluid replacing device. The brake fluid replacing device comprises a piston cylinder body, a piston assembly, a one-way valve assembly, a communicating pipe assembly, a brake fluid barrel, a waste liquid barrel and an idler wheel, wherein the piston cylinder body uses the one-way valve assembly and the communicating pipe assembly through a piston, sucks new hydraulic drive fluid in the brake fluid barrel, and pushes the new hydraulic drive fluid into a brake fluid storage pot of a car, and simultaneously, the piston cylinder body achieves replacement of waste brake fluid by sucking the waste brake fluid in a car brake wheel cylinder through the piston and pushing the waste brake fluid into the waste liquid barrel. The brake fluid barrel and the waste liquid barrel are fixedly installed at the upper end of the piston cylinder body through supports, and the idler wheel is fixedly installed below the piston cylinder body. A working method of the brake fluid replacing device is a negative pressure suction method. The brake fluid replacing device is simple in structure and low in cost, effectively guarantees that no air enters into a brake pipeline system during the brake fluid replacing process, and therefore can not reduce brake performance of the car, facilitates judging whether a brake pipeline leaks or not, is convenient to replace and operate, and saves manpower and material resources.

The invention discloses an engine carburetor liquid level height regulating device. The engine carburetor liquid level height regulating device comprises an oil storage cup, a lifting mechanism, a displacement sensor, a liquid level sensor, a control device and an oil storage cup support, wherein one side of the lifting mechanism is movably connected with the oil storage cup support, the other side of the lifting mechanism is fixedly connected with a gasoline octane value measuring machine body, the displacement sensor and the liquid level sensor are connected to the oil storage cup support and the oil storage cup, and the control device controls the movement of the lifting mechanism relative to a carburetor and measures the liquid level height of the oil surface of the oil storage cup in real time according to signals input by the displacement sensor and the liquid level sensor. Compared with the prior art, the device has the advantages that the liquid level height of the carburetor is regulated through the displacement sensor and the liquid level sensor, so that the problem of testing lag is effectively controlled, and reliability and sensitivity of a system are improved. In addition, the device is suitable for the technical field of gasoline octane value measurement.

The invention provides a negative-pressure liquid nitrogen subcooler and a method therefore for reducing liquid nitrogen temperature. The negative-pressure liquid nitrogen subcooler comprises a liquid nitrogen conveying system, a subcooler system, a negative-pressure air exhausting system and a discharging system, wherein the liquid nitrogen conveying system is used for supplying liquid nitrogen to the subcooler system; the negative-pressure air exhausting system is used for reducing pressure for the subcooler; and the discharging system is used for discharging gasified nitrogen. In the negative-pressure liquid nitrogen subcooler, an electric heater is adopted to raise the temperature of gaseous nitrogen to 20-30 DEG C, so that the subcooler is not limited to the weathers; a liquid level sensor is adopted to automatically regulating the opening of a pneumatic regulating valve, so that the height of the liquid level is maintained. The method comprises the steps of: firstly, injecting the liquid nitrogen for a liquid nitrogen container and regulating pressure; then injecting the liquid nitrogen for the subcooler, wherein the height of the liquid level of the liquid nitrogen in the subcooler is kept constant; then starting the negative-pressure air exhausting system, and cooling the liquid nitrogen through a heat exchanger; and finally, recovering the liquid nitrogen and discharging the liquid nitrogen. According to the invention, the temperature of a heat sink can be further reduced, the temperature of the heat sink is regulatable within a range of 70-77k, and the advantages of simple equipment, good effect and low operating cost are achieved.

The invention relates to a negative-pressure liquid nitrogen subcooler and a method for liquid nitrogen temperature reduction. The negative-pressure liquid nitrogen subcooler is applied to the field of motor vacuum science and technology and comprises a liquid nitrogen conveying system, a subcooler system, a negative-pressure air exhaust system and a discharge system. Wherein the liquid nitrogen conveying system is used for providing liquid nitrogen for the subcooler system, the negative-pressure air exhaust system is provided with an air temperature type vaporizer which is used for reducing the pressure of the subcooler, gas and nitrogen are discharged by the discharge system, in the subcooler system, a pneumatic control valve is adjusted manually in a long-distance manner, so that liquid level of the liquid nitrogen in the subcooler is kept constant. The method comprises the following steps that: firstly, the liquid nitrogen is filled into a liquid nitrogen container, pressure is adjusted, the liquid nitrogen is filled into the subcooler, and the liquid level of the liquid nitrogen in the subcooler is kept constant; then, the negative-pressure air exhaust system is started, and the liquid nitrogen is cooled through a heat exchanger; at last, the liquid nitrogen is recycled and residual liquid is discharged. In the negative-pressure liquid nitrogen subcooler, defect that a constant-pressure liquid nitrogen subcooler only can provide the liquid nitrogen with the minimum temperature of 77 DEG C can be overcome, heat sink temperature can be further reduced, adjustable heat sink temperature between 70 DEG C and 77 DEG C can be achieved, equipment is simple, effect is good and cost is low.

The present disclosure relates to a constant liquid level gasification furnace with a waste boiler comprising: a housing; an upper portion of the housing is defined as a gasification section, a middle portion of the housing is defined as a radiant section, and a lower portion of the housing is defined as a quenching section. The gasification section internally includes a membrane type water-cooled wall, wherein the inner region defined by the membrane type water-cooled wall is a gasification chamber. The radiant section internally includes a built-in radiant waste boiler assembly, wherein the internal region defined by the built-in radiant waste boiler assembly is a radiant chamber. The region defined by the quenching section is a quenching chamber.