CN216899879U - Gravity induction type electric heating digestion instrument - Google Patents

Abstract

The utility model provides a gravity induction type electric heating digestion instrument, wherein a plurality of digestion holes are arranged in a digestion instrument main body, heating bodies connected with a heater are arranged below the digestion holes, gravity induction control devices in one-to-one correspondence with the digestion holes are arranged below the heating bodies, each gravity induction control device comprises a moving contact, a fixed contact and an elastic device, the moving contacts are connected with the heater and positioned above the fixed contacts, the fixed contacts are connected with the digestion instrument main body, the moving contacts and the fixed contacts are conductors, the elastic devices are connected with the moving contacts and used for driving the moving contacts to move, and the moving contacts and the fixed contacts are in contact when being subjected to gravity induction and communicated with a heating circuit to heat a digestion tube. Compared with the existing digestion instrument, the gravity sensing type electric heating digestion instrument has the advantages that the energy consumption can be greatly saved through simple operation, the automation of gravity sensing control is higher, and the gravity sensing type electric heating digestion instrument is more accurate compared with manual control.

Description

A Gravity Induction Electrothermal Digestion Apparatus

technical field

The utility model relates to a digestion apparatus, in particular to a gravity induction type electrothermal digestion apparatus, which belongs to the technical field of experimental equipment.

Background technique

Digestion apparatus is a commonly used sample pretreatment equipment, suitable for food, medicine, agriculture, forestry, environmental protection, chemical industry, biochemistry and other industries, as well as institutions of higher learning and scientific research departments. It is widely used in the pretreatment of nitrogen-containing organic matter and other digestible substances, and it is also the necessary pretreatment equipment for Kjeldahl nitrogen analyzers.

The electrothermal digestion instrument has the advantages of fast digestion, high efficiency and convenience. This type of digestion instrument mostly adopts the three-dimensional surrounding heating method, and each part of the sample is heated evenly, which can effectively prevent heat loss. When the laboratory is equipped with this equipment, it will give priority to the digestion instrument with more heating holes to meet the needs of simultaneous multi-batch sample pretreatment and improve work efficiency. However, when the sample volume is small, all digestion wells are heated at the same time, resulting in wasted energy consumption, low heat utilization rate, and shortened service life of the instrument. In order to overcome the above drawbacks, there is an urgent need for a digestion apparatus with simple operation and low energy consumption, so as to improve the digestion efficiency and achieve the effect of energy saving.

Utility model content

The purpose of the utility model is to provide a gravity induction type electrothermal digestion instrument, which can meet the requirement of heating multiple samples at the same time, and can also realize independent heating and save energy consumption.

In order to realize the above-mentioned purpose, the present utility model realizes through the following technical solutions:

A gravity induction type electrothermal digestion apparatus, comprising a digestion apparatus main body and a base, a heater is arranged inside the digestion apparatus main body, a plurality of digestion holes are arranged in the digestion apparatus main body, and a heating body connected with the heater is arranged below the digestion holes, so the The heating body is provided with a gravity induction control device corresponding to the digestion hole one-to-one;

The gravity induction control device includes a moving contact, a fixed contact and an elastic device. The moving contact is connected to the heater and is located above the fixed contact. The fixed contact is connected to the main body of the digestion apparatus. Both the moving contact and the fixed contact are conductors. The elastic device is connected with the moving contact and is used for driving the moving contact to move.

Preferably, the heater is located at the lower part of the heating body, and an insulating layer is provided around the heater and between the heater and the gravity induction control device.

Preferably, thermal insulation materials are filled between the heating bodies.

Preferably, a digestive tube holder slot is arranged around the digestion hole.

Preferably, there are 6-24 digestion wells.

Preferably, the main body of the digestion apparatus further includes a temperature controller, and the temperature control range of the temperature controller is 20-550°C.

Preferably, the inner surface material of the digestion hole is strong acid and alkali resistant plastic.

Preferably, the material of the heating body is cast aluminum alloy, ceramic or graphite.

Preferably, the surface of the main body of the digester is coated with an anti-corrosion coating.

Preferably, the base is a four-corner base, and the material is corrosion-resistant gel.

The utility model has the advantages that: through the control of gravity induction, the movable contact on which the digestive tube is placed is lowered and connected with the fixed contact, so that the internal circuit of the electrothermal digestion apparatus is communicated, and the heater starts to heat, thereby heating the digestive tube; After the digestion hole of the digestion tube or after the digestion is completed, the digestion tube leaves the digestion hole without the effect of gravity, the movable contact is separated from the fixed contact, and the heating is stopped, thereby realizing the selective control and closing of the internal circuit. Compared with the existing digester, this gravity induction electrothermal digestion instrument can greatly save energy consumption by simple operation, and the gravity induction control is more automatic and more accurate than manual control.

Description of drawings

Fig. 1 is the external structure schematic diagram of the utility model;

Figure 2 is a schematic diagram of the internal structure of the present utility model;

Among them, 1- main body of digestion apparatus, 2- temperature controller, 3- switch, 4- base, 5- heater, 6- thermal insulation layer, 7- heating body, 8- thermal insulation material, 9- digestion hole, 10 -Gravity induction control device, 11-moving contact, 12-fixed contact, 13-spring, 14-digestive tube holder slot.

Detailed ways

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention. It should be noted that the terms "vertical", "upper", "lower" and "horizontal" The orientation or positional relationship indicated by ” and the like is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the indicated device or element must have a specific orientation.

A gravity induction electrothermal digestion apparatus as shown in FIG. 1 includes a digestion apparatus main body 1, the bottom of the digestion apparatus main body 1 is provided with four corrosion-resistant gel bases 4 for fixing, and the digestion apparatus main body 1 is provided with a heating temperature for controlling the heating temperature. temperature controller 2, switch 3. The main body 1 of the digestion apparatus is also provided with 6-24 digestion holes 9, and a plurality of heating bodies 7 are arranged below the digestion holes. The outer layer of the material 8 is provided with a slot 14 for a digestive tube holder.

The internal structure of the above-mentioned gravity induction type electrothermal digestion apparatus can refer to FIG. 2, the temperature-controllable heater 5 is arranged on the lower part of the digestion apparatus main body 1, the heater 5 is provided with a thermal insulation layer 6 around and below, and the top is provided with a cast aluminum alloy, A plurality of heating bodies 7 made of ceramic or graphite. Gravity induction control devices 10 corresponding to the digestion holes one-to-one are arranged under the heat insulating layer 6 under the heater 5 .

A plurality of digestion holes 9 are arranged in the main body 1 of the digestion apparatus, and a heating body connected to the heater is arranged below the digestion holes 9. Below the heating body, there are 6-24 gravity induction control devices 10 corresponding to 6-24 digestion holes. The upper end of the gravity sensing control device 10 is a movable contact 11, and the lower end is a fixed contact 12. Both sides of the movable contact are provided with elastic springs 13 that drive the movable contact 11 to move downward. The thermal layer 6 is connected, the fixed contact 12 is fixedly connected with the bottom surface of the main body 1 of the digestion apparatus, and the movable contact 11 can be in contact with the fixed contact 12 after moving down. Body heating the corresponding digestion wells.

The working principle of the utility model is as follows: when using the gravity induction electrothermal digestion instrument, first place the digestion tube at the digestion tube rack of the digestion tube rack slot 14, set the digestion temperature and the digestion time through the temperature controller 2, and open the The power switch of the digester. When the digestion tube is placed at the digestion hole 9, the gravity sensing control device 10 is in a pressurized state, and the movable contact 11 at the upper end descends under the action of gravity and is connected with the fixed contact 12, so that the circuit inside the digestion apparatus is connected , the heater 5 starts heating, and then heats the digestion tube; the gravity sensing control device 10 below the digestion hole 9 where the digestion tube is not placed is not under pressure, and the circuit is not connected; Take it out, the gravity sensing control device 10 is in a pressure-releasing state, the movable contact 11 is not affected by gravity, and moves up and away from the fixed contact 12 under the action of the spring 13, thereby disconnecting the circuit and stopping the heating of the heater. Induction controls the closing and opening of internal circuits.

Finally, it should be noted that the above are only the preferred embodiments of the present invention, and are not intended to limit the present invention. For those skilled in the art, they can still apply the technical solutions described in the foregoing embodiments. Modification, or equivalent replacement of some of the technical features, any modification, equivalent replacement, improvement, etc., shall be included within the protection scope of the present invention.

Claims (10)

1. a gravitational induction type electrothermal digestion apparatus, comprising a digestion apparatus main body, a base, the interior of the digestion apparatus main body is provided with a heater, it is characterized in that, a plurality of digestion holes are provided in the described digestion apparatus main body, the digestion hole A heating body connected to the heater is arranged below, and a gravity induction control device corresponding to the digestion holes is arranged below the heating body; The gravity induction control device includes a moving contact, a fixed contact and an elastic device, the moving contact is connected to the heater and is located above the fixed contact, the fixed contact is connected to the main body of the digestion apparatus, and the moving contact The fixed contacts are all conductors, and the elastic device is connected with the moving contacts to drive the moving contacts to move. 2 . The gravity induction electrothermal digestion apparatus according to claim 1 , wherein the heater is located at the lower part of the heating body, and an insulating layer is provided around the heater and between the heater and the gravity induction control device. 3 . 3 . The gravity induction electrothermal digestion apparatus according to claim 1 , wherein the heating bodies are filled with thermal insulation materials. 4 . 4 . The gravity induction electrothermal digestion apparatus according to claim 1 , wherein the digestion hole is provided with a digestive tube holder slot around the digestion hole. 5 . 5 . The gravity induction electrothermal digestion apparatus according to claim 1 , wherein there are 6-24 digestion holes. 6 . 6 . The gravity induction electrothermal digestion apparatus according to claim 1 , wherein the main body of the digestion apparatus further comprises a temperature controller, and the temperature control range of the temperature controller is 20-550° C. 7 . 7 . The gravity induction electrothermal digestion apparatus according to claim 1 , wherein the inner surface material of the digestion hole is a strong acid and alkali resistant plastic. 8 . 8 . The gravity induction electrothermal digestion apparatus according to claim 1 , wherein the material of the heating body is cast aluminum alloy, ceramics or graphite. 9 . 9 . The gravity induction electrothermal digestion apparatus according to claim 1 , wherein the surface of the main body of the digestion apparatus is coated with an anti-corrosion coating. 10 . 10 . The gravity induction electrothermal digestion apparatus according to claim 1 , wherein the base is a four-corner base, and the material is corrosion-resistant gel. 11 .

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