CN214427320U - Novel controllable rapid heating and rapid cooling melting point measuring device - Google Patents

Abstract

The utility model discloses a novel controllable rapid heating cools off fast and surveys boiling point of melting device, including b type pipe, b type pipe is fixed on the iron stand platform, still includes h type pipe, and h type pipe is fixed to be set up on heating blast box, h type pipe comprises air-supply line, cold-blast main, hot-blast main and play tuber pipe, be equipped with the heating wire in the hot-blast main, the intersection of air-supply line, cold-blast main and hot-blast main is equipped with the wind direction diverter valve, the upper end that goes out the tuber pipe opens the lower extreme and seals, is equipped with the opening on the upper end lateral wall that goes out the tuber pipe, and the annular portion of b type pipe is placed in the opening, is equipped with the air-blower in the heating blast box, the tuyere of air-blower and the air intake intercommunication of air-supply line. The utility model discloses rate of heating is fast, be heated evenly, and the rate of heating controllability is high, and it is effectual to cool down, has both satisfied the demand to quick, the even heating of the irregular container b type pipe that uses in the melting point measurement station, satisfies rapid cooling's between the different experiments demand again, and the heating process is clean, clean and tidy, and no pollutant produces.

Description

Novel controllable rapid heating and rapid cooling melting point measuring device

Technical Field

The utility model belongs to the technical field of laboratory glassware equipment, specifically be a novel controllable rapid heating cooling surveys and melts boiling point device.

Background

In chemical experiments, the melting point is often measured by the capillary method. One end of the capillary tube, which is filled with the sample, is in close contact with an alcohol bulb of a thermometer, then the capillary tube is placed in a b-type glass container filled with glycerol, and the melting and boiling conditions of the sample are observed by heating the glycerol in the b-type glass container. The heating device of the b-shaped pipe in the existing laboratory has a few defects, which is specifically characterized in that an alcohol lamp is adopted for heating, and because the alcohol is not combusted sufficiently, carbon particles attached to the pipe wall of the b-shaped pipe are blackened, so that the observation record of the experiment is influenced; alcohol and asbestos gauze are adopted for heating, the b-shaped pipe is heated unevenly, and the heating process is slow; adopt oil bath pot heating, though can reach the purpose of rapid stabilization heating, but the cooling process is slow, when carrying out many samples test and parallel experiment test, it is longer to need latency, greatly reduced experimental efficiency, and because b type pipe is in the oil bath pot, the oil bath pot shelters from the sight and leads to data observation and reading convenient inadequately, in addition, oil bath pot heating is because a large amount of oils have been used, the experimenter easily appears serious dripping in the installation dismantlement operation process and spills the condition, it is serious to lead to the pollution of experiment mesa ground.

Therefore, in order to improve efficiency, accuracy and the degree of safety of experiment, this utility model is proposed to this end.

SUMMERY OF THE UTILITY MODEL

To not enough among the above-mentioned background art, the utility model provides a novel controllable rapid heating cools off fast and surveys boiling point device is applicable to the quick even heating of irregular glass container, and can satisfy rapid cooling's experimental requirement to it is low to have solved the degree of safety that exists in the experiment that needs carry out the ordinary pressure heating for a long time effectively, and is consuming time long, and the observation degree of difficulty is big, experimental operation loaded down with trivial details's problem.

The technical scheme of the utility model is realized like this:

the utility model provides a novel controllable rapid heating cools off survey melting boiling point device fast, includes b type pipe, b type pipe is fixed on the iron stand platform, still includes h type pipe, and h type pipe is fixed to be set up on heating blast box, h type pipe comprises air-supply line, cold-blast main, hot-blast main and air-out pipe, be equipped with the heating wire in the hot-blast main, the intersection of air-supply line, cold-blast main and hot-blast main is equipped with the wind direction diverter valve, the upper end that goes out the air pipe opens the lower extreme and seals, is equipped with the opening on the upper end lateral wall that goes out the air pipe, and the annular portion of b type pipe is put in the opening, be equipped with the air-blower in the heating blast box, the tuyere of air-blower and the air intake intercommunication of air-supply line.

Furthermore, the wind direction conversion valve adopts a three-way ball valve, is arranged at the intersection of the air inlet pipe, the cold air pipe and the hot air pipe, and is a transparent ball body.

Furthermore, a control panel of the heating blast box is provided with a power supply main switch, a power supply indicator lamp, a temperature control knob, a heating device switch, a heating device indicator lamp, a wind control knob, a blast device switch and a blast device indicator lamp, and the heating blast box is connected with the main power supply through a power line.

Furthermore, the heating wire is vertically arranged in the hot air pipe, a voltage regulator is arranged in the heating blast box, the heating wire is connected with the voltage regulator through a lead, and the voltage regulator is electrically connected with a switch of the heating device.

The utility model discloses beneficial effect: compare in alcohol burner heating and oil bath heating, novel controllable rapid heating cools off surveys melting boiling point device and adopts controllable rapid heating rapid cooling device to experiment. The utility model discloses, be applicable to the heating process of different glassware, and rate of heating is fast, be heated evenly, and the rate of heating controllability is high, and the cooling is effectual, and the heat source is clean, clean and tidy, pollution-free, has both satisfied the demand to quick, the even heating of the irregular container b type pipe that uses in the boiling point measurement station, satisfies the demand of rapid cooling between the different experiments again, and the heating process is clean, clean and tidy, and no pollutant produces.

Drawings

In order to illustrate the embodiments of the present invention more clearly, the drawings that are needed in the description of the embodiments will be briefly described below, and it is obvious that the drawings in the description below are only some embodiments of the present invention, and that other drawings can be obtained by those skilled in the art without inventive work.

Fig. 1 is a schematic structural diagram of the present invention.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without any creative effort belong to the protection scope of the present invention.

As shown in fig. 1, a novel controllable rapid heating and rapid cooling melting point measuring device comprises a b-shaped pipe 6 fixed on an iron stand 5, and further comprises an h-shaped pipe 7, wherein the h-shaped pipe 7 is fixedly arranged on a heating blast box 20, the h-shaped pipe 7 is composed of an air inlet pipe 7-4, a cold air pipe 7-1, a hot air pipe 7-2 and an air outlet pipe 7-3, a heating wire 9 is arranged in the hot air pipe 7-2, a wind direction switching valve 8 is arranged at the intersection of the air inlet pipe 7-4, the cold air pipe 7-1 and the hot air pipe 7-2, and the wind direction switching valve is a three-way ball valve and is a transparent ball.

The upper end of the air outlet pipe 7-3 is open, the lower end of the air outlet pipe is closed, the side wall of the upper end of the air outlet pipe 7-3 is provided with an opening, the annular part (or the annular part) of the b-shaped pipe 6 is arranged in the opening, the heating blast box 20 is internally provided with a blast blower, and a blast port 10 of the blast blower is communicated with an air inlet of the air inlet pipe 7-4.

A power supply main switch 12, a power supply indicator lamp 13, a temperature control knob 14, a heating device switch 15, a heating device indicator lamp 16, a wind control knob 17, a blowing device switch 18 and a blowing device indicator lamp 19 are arranged on a control panel of the heating blast box, and the heating blast box 20 is connected with a main power supply through a power line 11.

The heating wire 9 is vertically arranged in the hot air pipe 7-2, a voltage regulator is arranged in the heating blast box 20, the heating wire 9 is connected with the voltage regulator through a lead, and the voltage regulator is electrically connected with the heating device switch 15.

The working process of the utility model is as follows:

the b-shaped tube 6 is fixed on the iron support 5 through a clamp, the thermometer 2 penetrates through the rubber plug 1, and the rubber plug is fixed at the opening of the b-shaped tube 6. The alcohol bulb of the thermometer 2 is closely contacted with the capillary tube 3 and is arranged in the b-shaped tube 6, the b-shaped tube 6 is arranged in an opening of an air outlet tube 7-3 of the h-shaped tube 7, and hot air or cold air is blown to the annular part of the b-shaped tube glassware from the opening to realize heating and cooling.

The upper end of an air outlet pipe 7-3 of the h-shaped pipe 7 is an open system and can be provided with various irregular utensils; the bottom right side is equipped with air-blast device, and wind direction diverter valve 8 is down, and wind is through heating wire 9, and it is hot-blast from the h type pipe upper end, for b type pipe 6 heating, and wind direction diverter valve 8 is up, and wind does not pass through heating wire 9, goes out cold wind from the h type pipe 7 upper end, for b type pipe 6 cooling.

The utility model discloses a control air-blowing device switch 18 control air-blower air supply condition. During the experiment, open power master switch 12, heating device switch 15 and blower device switch 18, through adjusting wind direction diverter valve 8, make it down, the wind that the h type pipe 7 was blown into gets into and carries out the high temperature heating under the effect of the inherent heating wire 9 of hot-blast main 7-2, and the hot-blast play tuber pipe 7-3 of h type pipe 7 that flows into of production carries out the rapid heating to b type pipe 6 that is located the tuber pipe 7-3 opening part, just the utility model discloses be equipped with control by temperature change knob 14 and wind control knob 17, through adjust knob alright regulation rate of heating. After the experiment is finished, the heating device switch 15 is closed, the air direction switching valve 8 is rotated, the air blown into the h-shaped pipe 7 directly reaches the air outlet pipe 7-3 of the h-shaped pipe 7 through the cold air pipe 7-1 to rapidly cool the b-shaped pipe 6, and the cooling rate is controlled by adjusting the air control knob 17.

The present invention is not exhaustive and is well known to those skilled in the art.

The above description is only a preferred embodiment of the present invention, and should not be taken as limiting the invention, and any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims (4)

1. The utility model provides a novel controllable rapid heating cools off fast and surveys melting boiling point device, includes b type pipe (6), b type pipe (6) are fixed on iron stand platform (5), its characterized in that: also comprises an h-shaped pipe (7), the h-shaped pipe (7) is fixedly arranged on the heating blast box (20), the h-shaped pipe (7) consists of an air inlet pipe (7-4), a cold air pipe (7-1), a hot air pipe (7-2) and an air outlet pipe (7-3), an electric heating wire (9) is arranged in the hot air pipe (7-2), a wind direction switching valve (8) is arranged at the intersection of the air inlet pipe (7-4), the cold air pipe (7-1) and the hot air pipe (7-2), the upper end of the air outlet pipe (7-3) is open, the lower end is closed, the side wall of the upper end of the air outlet pipe (7-3) is provided with an opening, the annular part of the b-shaped pipe (6) is arranged in the opening, an air blower is arranged in the heating blast box (20), and a blast port (10) of the air blower is communicated with an air inlet of the air inlet pipe (7-4).

2. The novel controllable rapid heating and cooling melting point measuring device according to claim 1, characterized in that: the wind direction switching valve (8) adopts a three-way ball valve.

3. The novel controllable rapid heating and cooling melting point measuring device according to claim 1, characterized in that: the heating and blowing device is characterized in that a control panel of the heating and blowing box (20) is provided with a power supply main switch (12), a power supply indicator lamp (13), a temperature control knob (14), a heating device switch (15), a heating device indicator lamp (16), a wind control knob (17), a blowing device switch (18) and a blowing device indicator lamp (19), and the heating and blowing box (20) is connected with the main power supply through a power line (11).

4. The novel controllable rapid heating and cooling melting point measuring device according to claim 3, characterized in that: the heating wire (9) is vertically arranged in the hot air pipe (7-2), a voltage regulator is arranged in the heating blast box (20), the heating wire (9) is connected with the voltage regulator through a lead, and the voltage regulator is electrically connected with the heating device switch (15).

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