The presentation system 100 comprises: a tornado fan in which a plurality of blowers each perform blowing so that clockwise or counterclockwise air flow is generated in a presentation space surrounded by exhaust ports 114 of the plurality of blowers when viewed in a plan view; and a supply device 12 that supplies a float body such as a bubble into the presentation space. It is possible to cause an aggregate of bubbles to float in the vicinity of the center in the presentation space by means of a vortex air flow formed in the presentation space.

A dry ice machine for creating fog effect is provided. The dry ice machine includes an outer casing having a liquid containing space, a lifting assembly, a dry ice container, and a fog outlet pipe. The lifting assembly including a lifting member and an operating member is moveably disposed on the outer casing. The operating member is connected to the lifting member to drive the lifting member to move along a lifting axis. The dry ice container is detachably assembled to the lifting member to be driven up or down by the lifting member. The dry ice container has a plurality of through holes so that an internal space thereof is in spatial communication with the liquid containing space. The fog outlet pipe detachably assembled to the outer casing includes a backflow section and a bending section for guiding fog in the liquid containing space to the outside.

A smoke-filled bubble machine and a constant-temperature control circuit are disclosed. Firstly, a heating member is heated at a full-speed to make the heating member heat up rapidly. When a temperature of the heating member rises above a first predetermined threshold, a loop switch is alternately turned on and turned off, and a turned-on duration is iteratively adjusted, so as to enable the heating member to heat up stably to near an optimal temperature value. Finally, the temperature of the heating member is kept as close to the optimal temperature value as possible according to a predetermined PWM signal. In this way, high-quality bubbles can be generated.

A waterproof heating module for a smoke generator comprises a heat exchanger (45) including an ejection portion (115) configured to eject smoke. The heat exchanger (45) is received in an inner side of an outer casing (135). The ejection portion (115) extends through a through-hole (139) of the outer casing (135) to an outer side of the outer casing (135). A closure plate (155) includes a closure face (157) and a coupling hole (159) extending through the closure face (157). The coupling hole (159) of the closure plate (155) has an inner periphery (160) in waterproof coupling with an outer periphery of the ejection portion (115). The ejection portion (115) extends out of the closure plate (155) via the coupling hole (159). The closure face (157) of the closure plate (155) is in waterproof coupling with the through-hole (139) of the outer casing (135).

A vapor chiller. The vapor chiller includes a chiller vessel configured to store a cooled substance. The chiller vessel includes a plurality of chambers. Each chamber in the plurality of chambers is configured to concentrate the cooled substance at a bottom of the chamber. The vapor chiller further includes a fan coupled to the chiller vessel. The fan is configured to direct vapor through the chiller vessel across the cooled substance in the bottoms of the chambers.

A combined-type smoke generator includes a shell. A battery is installed on one side of bottom inside shell, an electrode needle is installed on one side of top inside shell, an air pump is installed on the other side of bottom inside shell, a connecting assembly is installed on the other side of top inside shell, a smoke compartment is installed on the left side of top of shell, an air inlet is installed on the right side of the smoke compartment, a control assembly is installed on the front side of the shell, the top of the electrode needle is connected to the bottom of the smoke compartment, the battery is connected electrically to the electrode needle, the air pump is connected through the connecting assembly to the air inlet of the smoke compartment, and the control assembly is connected electrically to the battery and the air pump respectively.

A smoke dispensing system integrated into at least one bull head. The bull head has horns, eye holes, and a nose hole. A pressurized tank assembly, connection assembly, at least one valve, gas tank assembly, and computer produce smoke. The connection assembly connects the pressurized tank assembly to the gas tank assembly and the gas tank assembly to the at least one valve. The pressurized tank assembly pushes gaseous nitrogen or CO2 out of the gas tank assembly. The at least one valve controls the release of smoke produced by the nitrogen or CO2, remotely operated through a computer. The wall assembly serves as a stable mounting point for at least one bull head. When activated, the at least one valve releases smoke from the at least one bull head, creating a visually captivating and customizable experience. The integration of these components provides a unique and dynamic artwork experience.