At present, there are two kinds of smoke machines on the stage: heated smoke machines and air pressure atomizing smoke machines.
The heating machine heats the heating pipe to a certain temperature, and then the specific smoke oil passes through the heating pipe at a certain temperature through the pressure of the oil pump, and the smoke oil is instantly atomized into smoke after passing through the high temperature.
The air pressure atomizing fogger atomizes the oil through the nozzle. The nozzle of the atomizing fog machine has two inlets, one is the oil inlet and the other is the air inlet. The oil inlet has a connecting pipe reaching the oil tongs, and the oil inlet is connected to the air compressor through a high-pressure pipe. When the air compressor starts, compressed air will enter the nozzle through the high-pressure pipe at this time, and the high-pressure airflow will suck out the oil. When it reaches the nozzle, the air will collide with the oil and be atomized instantly.
Because of the different working principles of the two types of cigarette machines, the smoke oil used is also different.
The smoke oil used in the heating type smoke machine is composed of pure water, ethanol, glycerol, etc. I will write an article about the composition of tobacco oil in the future, because the smoke produced by different raw materials is obviously different.
The smoke oil used in pneumatic cigarette machine is mostly composed of saturated hydrocarbon, which is easy to react to generate impurities and discolored unsaturated hydrocarbon, and then it is removed in the refining process. The next paper will mention that special tobacco oil will have some negative effects if it contains unsaturated hydrocarbons.
The two types of hoods with different principles have their own characteristics, advantages and disadvantages, and it is necessary to decide which hood to use according to different performance properties. Select the following cases to analyze some typical applications of each hood:
The Application of 1 in TV Studio
Television stations will record comprehensive entertainment programs according to the nature of the programs, so the changes in lighting are required to be different. So how can we make the party always keep pleasing lighting effects in the complicated lighting changes, so as to improve the visual sense of the whole party and attract the attention of the audience? In addition to the superb lighting technology of professional lighting technicians, there is also a key factor that is the smoke effect at the scene. When using a smoke machine in a TV studio, we must consider the following factors:
(1) When a TV program is recorded or played, viewers can only watch it on TV after it is recorded by a camcorder. However, after the light is recorded and broadcast by the camcorder, the color temperature of the light is filtered by the color film of the camcorder, which will make the lighting effect seen by the audience on TV worse than that seen on the spot. Therefore, how to highlight the sharpness of the beam and increase the saturation of the beam at the scene is what we should focus on when doing special effects. Only in this way can the audience in front of the TV feel the lighting effect of the scene and share the happiness of the scene.
(2) There is another key factor to be considered in the smoke special effect of TV studio, that is, the air supply system at the scene. There are several kinds of air supply phenomena: "fresh air, cold air, warm air, only sending without discharging, only discharging without discharging". "Fresh air" is to send outdoor air directly into the studio without treatment, and then directly exhaust the air from the studio to keep indoor and outdoor air circulation. Fresh air can basically keep the smoke in the studio uniform. Cold wind will make smoke rise, while warm wind will keep smoke from rising. Neither cold air nor warm air can keep the smoke uniform, so it is necessary to know what kind of state the air supply system is in when the hoods are distributed, which is more conducive to the display of smoke effect.
Take the application of Foshan TV Station as an example. According to the performance nature and studio nature of Foshan TV Station, we have equipped it with four Antali brand air pressure atomizing sprayers (HZ-500) and Touran brand HZL-II environmental protection plant effect smoke oil. After the smoke oil is atomized in an instant, the generated smoke quickly becomes smoke particles after contacting the air, and is evenly distributed in the whole space in a short time. Because the smoke particles are extremely fine, a fine fog layer will be formed in the space. The audience can't see the smoke floating, but they can obviously feel the sharpness of the beam. Even if it is televised, it will not affect the light perception of the beam. The audience in front of the TV can also feel the bright lighting effect of the studio.
Figure 1 shows the live effect of the evening party in the studio of Foshan TV Station on June 20 10, about 800 square meters. Through the calculation of on-site air supply system, four Antali brand air pressure atomizing smoke machines (HZ-500) were selected to perform with the environmental protection smoke oil introduced by HZL No.2 Factory, and the atomization produced a smoke effect.
Application of 2 in outdoor performance
Outdoor performances often have a headache about how to show the lighting effect, because the venue is empty and the wind speed is uncertain. It is generally believed that the greater the power of the smoke machine used for outdoor performance, the more smoke it produces and the better the effect. In fact, this idea is wrong. Because the smoke generated by the high-power smoke machine needs a period of atomization, the smoke often drifts with the wind during the atomization process. Therefore, we must master the atomization time process of smoke to ensure that the smoke can rise rapidly after atomization. Remember, it's rising, not dispersing. Only in this way can the lighting effect of outdoor performances be guaranteed.
Take the outdoor theme song of the Asian Games 10 day countdown as an example, and the performance was held at Changlong Hotel on the evening of 201010.2. In this case, to control the atomization time of droplets, we should not only pay attention to the properties of droplet oil, but also choose the droplet machine. Amita's SHZ-80D smoke machine and TUING's OG-4 light smoke oil (pictured above) were selected as performance products. As can be seen from the above picture, the smoke has been atomized when it comes out, and the smoke is very thin and uniform.
Because the atomization process is shortened, the smoke quickly expands upward after atomization and contacts with air. On the other hand, because the density of smoke molecules atomized by OG-4 is close to the density of air (1.29 kg/m3), smoke molecules can quickly blend into the air, and the general smoke effect is easily affected by the wind when applied outdoors, thus affecting the embodiment of lighting effect. OG-4 can still have a good effect when used in the wind. No matter how strong the wind is outside, it will only take away a small part of the smoke, and there will still be smoke molecules stranded in the air. Several amita brands of SHZ-80D can provide an ideal smoky environment for outdoor performances and give full play to the outdoor display platform with lighting effects.
On the night of the performance, there was a northerly wind with a wind force of 3-4. Amita SHZ-80D smoke oil with TUING OG-4 environmental protection plant effect was used at the scene on June 8, which fully showed the outline of the scene beam effect, and the lighting design of the party was very satisfied with the smoke effect.
3 Application of special effects equipment of 4D cinema in World Meteorological Pavilion of Shanghai World Expo
On 20 10, Shanghai World Expo, 4D cinemas gathered, and major venues competed to show various themes such as humanity, geography, universe and future species with the super exhibition power and shocking effect of 4D cinemas.
The most shocking thing is the 4D cinema with a 360-degree circular screen in the Turkey Pavilion. According to the conditions of arc-shaped screen, the circular screen of 4D cinema can be divided into several ways, such as circular screen, arc-shaped screen and 360-degree circular screen. The usual definition criteria are: arc screen with radian less than 180 degrees, circular screen with radian greater than 180 degrees, and 360-degree circular screen with radian of 360 degrees. The circular screen cinema uses a cylindrical projection screen to surround and watch in the center. The super-long and super-wide picture on the screen fills the viewer's field of vision. The omni-directional stereo and the plot of the film complement each other perfectly, and the auxiliary effect of special effects equipment completely brings the audience wonderful immersive audio-visual sensory enjoyment.
The 360-degree round-screen 4D cinema in Turkey Pavilion completely dedicated the beautiful scenery of Istanbul to the audience, and the scenes involving snow scenes were completed with SV-4A high volatile snowflake water of TUING brand. This kind of snowflake water can create a scene of snowflakes flying all over the sky. When snowflakes fall into contact with the human body, people will feel that snowflakes are very cold, but they will evaporate quickly and will not cause irritation to the skin. Snowflakes will automatically evaporate in less than 20 seconds after landing, leaving no trace at all, which is also a strict requirement for special effects by 4D cinema investors, because in crowded public places, the safety and environmental protection of special effects equipment should be the first consideration.
For the 4D cinema, our technical team accurately calculated the relevant parameters, including the hanging height of the special effects machine, the falling time and volatilization time of snowflakes, the concentration and volatilization time of smoke and so on. To create just the right special effects. Can bring a rich feast of sight, hearing and feeling to the audience.
In the past, many people thought that there was lighting effect when there was smoke, but with the progress of time, the requirements for smoke grade became higher and higher, including strict evaluation of smoke color, smell, dryness, atomization time, environmental protection and other standards, and they would no longer be ignorant of smoke. Because smog is used in crowded places, it is often absorbed by people's breath. Therefore, whether smog is environmentally friendly and non-toxic is a problem worthy of attention. It is said that China Environmental Protection Bureau has drawn up a guideline for smog chemical environmental protection, and we will wait and see. In fact, the application of cigarettes is not limited to the present stage. Nowadays, many fire drills also need smoke effect, and there are certain requirements for smoke according to different needs, including smoke concentration and taste, and even smoke color. These TWX brands can meet the different needs of customers. Even customers use cigarettes to prevent theft. So the seemingly simple smoke effect actually contains many rich details.
Medicinal tobacco oil
Medicinal tobacco oil
Alias Smoke Ointment, Daji Ointment, Gas Mud, Wuxing Dan
A Textual Research on the Names of Smoke Oil (Medicine Mirror), Smoke Ointment, Daji Ointment, Gas Mud and Five Elements Dan (Outline)
Black ointment accumulates in the old dry tobacco stems of medicinal parts.
The taste is pungent and bitter, and the cold enters the heart.
Efficacy: It is mainly used for eliminating dampness and healing sores, treating insect and snake wounds, treating snake and insect bites, malignant sores and stubborn tinea.
Usage and dosage for external use: film coating agent. Oral: Dilute with water.
Textual research on ancient books comes from "Hundred Herbs Mirror". Outline: tobacco oil is used as medicine, and it is good to split old bamboo poles. The oil in the stems of plums, vines, rosewood, ebony, geranium, pure copper and pure silver is not as good as that in bamboo.
Related prescriptions ① Treatment of poisonous snake bites: Wash out the smoke oil in the bamboo chimney with cold water and drink one or two bowls. People with severe poisoning will have a sweet but not spicy taste, so it is best to drink more. (New version of Zengguang Fang) 2 Treatment of furuncle and furuncle: a little tobacco oil, mixed with water. (Hunan Medical Journal) ③ Treatment of centipede bite: Apply the ointment in the chimney to the bite or wipe it with ash. (Compendium)
Reference sources: Herb Mirror and Outline.
Keywords eliminating dampness and healing sore; Insect snake injury