74results about How to "Adjustable heating temperature" patented technology

A test device of antithermal shock property for heat barrier coating layer consists of rotary circular platform, sample carriage, operation table, unit for setting heat source, input opening of cooling media, positioning unit and temperature measuring unit .It features that positioning hole and water drainage slot are set on rotary circular platform for carrying out positioning quickly and for draining out cooling liquid conveniently, rotary circular platform is rotated around operation table to carry out circular movement so as to realize property test of antithermal shock for multisample for raising test efficiency .

The invention discloses a barbecue oven. The barbecue oven comprises a central baking oven, wherein a rotatable barbecue tool bracket and a rotatable charcoal fire bracket are arranged on an outer wall of the central baking oven; the barbecue tool bracket is arranged above the charcoal fire bracket. By arranging the rotatable barbecue tool bracket and the rotatable charcoal fire bracket, relative movement of the barbecue tool bracket and the charcoal fire bracket can be realized, so that distance change between a food material on the barbecue tool bracket and charcoal fire on the charcoal fire bracket is realized, and a heating temperature of the food material is adjustable.

The invention discloses a multistage combined secondary distillation heat control ultra-pure water continuous generator, relating to the technical field of high-purity water preparation. The multistage combined secondary distillation heat control ultra-pure water continuous generator is characterized in that a distiller main body is a cylinder body, and is separated into three regions of a primary distiller, a secondary distiller and a high-purity water storage chamber by an upper partitioning layer and a lower partitioning layer; the upper partitioning layer and the lower partitioning layer are circular glass with diameters equal to the diameter of the cylinder body as the distiller main body, and peripheries of the upper partitioning layer and the lower partitioning layer are adhered and connected with the inner wall of the distiller main body; a V-shaped condensing pipe is located at the upper part of the primary distiller; an outlet pipe of the primary condensing pipe and an inlet pipe of the primary condensing pipe respectively protrude out of the wall of the distiller main body, and the pipe wall and the wall of the distiller main body are adhered together; a quartz heating pipe is U-shaped, a U-shaped opening end of the quartz heating pipe protrudes out of the wall of the distiller, and the pipe wall and the wall of the distiller are adhered together; a secondary electric heating wire is connected with a secondary pressure regulator. According to the multistage combined secondary distillation heat control ultra-pure water continuous generator, the problem of secondary pollution of high-purity water of the prior art is solved; the heat efficiency is increased; the multistage combined secondary distillation heat control ultra-pure water continuous generator is small in volume, high in condensing efficiency and low in cost.

A temperature-control circuit of a heating line and a temperature-control method thereof are disclosed. The method comprises steps of: outputting a forward square-wave signal by a first forward square-wave signal generation circuit; outputting a reverse square-wave signal by a reverse square-wave signal generation circuit; and outputting a varied forward square-wave signal by a second forward square-wave signal generation circuit. Above square-wave signal generation circuits are respectively connected with an AND gate. When the input square-wave signals are simultaneously logic high, a switch is triggered by a trigger circuit to heat the heating wire. When the heating wire's temperature increases, the forward square-wave signal output by the second forward square-wave signal generation circuit is changed so as to render these input square-wave signals non-simultaneously logic high and not to trigger the switch in order to stop the heating wire's heating and keep the heating wire at a certain temperature range.

The invention provides a wet tissue heater convenient to operate. The wet tissue heater comprises a box body and a cover body; a first heating piece is arranged in the cover body; the box body is connected with the cover body through a connecting structure; and a limiting hook is arranged on the lower end face of the cover body. The connecting structure comprises a support housing, a rotating shaft rotationally connected into the support housing, a clamping hook matched with the limiting hook and a button. The clamping hook and the button are positioned on two sides of the rotating shaft respectively to form a warped plate structure; the upper end face of the support housing is provided with a through opening allowing the clamping hook to extend out; the side wall of the box body is provided with a window allowing the button to be exposed; the button is pressed to drive the clamping hook to rotate to separate the clamping hook from the limiting hook, and therefore, the cover body and the box body are separated in a matched mode, and separation operation is easy, convenient and labor-saving.

The invention discloses a water-treatment composite microbe continuous culture device and a culture method thereof. The device comprises a tank (1), the tank (1) is separated into four independent culture zones comprising an aerobic zone (3), an anaerobic zone (4), a first transition zone (5) and a second transition zone (6) by separation plates (2), the first transition zone (5) and the second transition zone (6) are positioned between the aerobic zone (3) and the anaerobic zone (4), each of the culture zones is provided with a culture medium inlet (7) and an overflow mouth (8), a culture medium is continuously charged through the culture medium inlet (7), and a cultured bacterial liquid flows to a sewage treatment zone from the overflow mouth (8). The device and the method have the advantages of realization of the simultaneous and continuous culture of a plurality of strains, automatic addition of the culture medium, automatic charging of the bacterial liquid, improvement of the culture efficiency of the bacterial liquid, substantial acceleration of the composite pollution treatment speed, and avoiding of the sewage-treatment intermittent interruption caused by intermittent culture.