CN201204918Y - Food spices high-temperature high-pressure reaction device - Google Patents

Abstract

The utility model discloses a high-temperature high-pressure reaction device of a flavoring agent, in particular to a high-temperature high-pressure reaction device of a reaction flavoring agent which takes gases as a pressure medium; the utility model includes a reaction kettle, a high pressure gas generating device connected with the reaction kettle and a flavoring substance collection-separation device connected with the reaction kettle. The utility model is characterized in that the tail end of the reaction device is provided with the structural characteristics of a gas purifying device. In the utility model, an integral design is adopted, thus having the characteristics of simple operation and safe testing. The advantages of safety and environmental friendlessness are extremely shown; the reaction effects are enhanced. The high-temperature high-pressure reaction device is suitable for the chemical material synthetic reactions (including catalytic hydrogenation, polyreaction, carbonylation reaction, and the like) which takes the gases like CO[2] and ethane as the reaction substrates as well as the biochemical field like a subcritical hydrothermal reaction, and the like.

Description

A high temperature and high pressure reaction device for edible spices

technical field

The utility model relates to a high-temperature and high-pressure reaction device for edible spices, in particular to a high-temperature and high-pressure reaction device for reactive spices with gas as a pressure medium.

Background technique

Since the publication of the first reactive flavor patent in 1960, traditional reactive flavors have been produced under normal pressure conditions or in closed containers to obtain different flavor profiles by adjusting the composition of the formula, the pH of the reaction system, moisture content, reaction temperature or time reaction to spice products. However, the traditional reactive flavors have defects such as darker color, low aroma intensity, and indistinct characteristic flavor compounds. As a kind of natural flavor, the application prospect of reactive flavor in food field is very broad. How to control the color of the reactive spices and improve the aroma intensity of the reactive spices is one of the difficulties in breaking through the existing perfume production technology.

The application of pressure as a processing parameter in food processing can be traced back to 1899, but the promotion of high-pressure technology as a high-tech in the food industry began in 1994. The application of Hydrostatic Pressure (HHP) in the food industry is limited to unit operations such as sterilization, inactivation of enzymes, tenderization, and crushing in the non-thermal processing field. The theoretical basis of high pressure, especially HHP, on the production of reactive spices——the influence of Maillard reaction has been paid attention to by researchers in Britain, Japan, and Germany, but the research is not in-depth, and more limited to the degree of browning of Maillard reaction and HHP Applied research on equipment. Traditional high-pressure/HHP devices generally use water as the pressure transmission medium, and the processing temperature is not high (≤100°C); in addition, it is still difficult to realize its traditional large-scale industrialization at present, commercialized ultra-high pressure, etc. The maximum processing capacity of hydrostatic equipment is currently known to be more than 1m ³ , but there is still a considerable distance from the processing capacity expected by enterprises.

Existing pressure reaction vessels generally can only withstand the saturated vapor pressure generated by the reaction material itself during the heated reaction process, and there is not much research and research on the pressure reaction vessel with an additional tens of megapascals (MPa). involves. In addition, the characteristics of the reaction flavor itself require the reaction equipment to be equipped with an aroma enrichment device, but currently there is no ready-made high temperature and high pressure reaction equipment to meet the needs of the development and production of edible reaction flavors.

The substrate of the Maillard reaction can break through the traditional reaction and produce some new substances under high temperature and high pressure coupling conditions, such as spice products such as glyoxal, 2-oxopropionaldehyde (acetoglyoxal). In addition, using gas as a reaction medium or reaction substrate also requires a high-temperature and high-pressure reaction device; there are not many high-temperature and high-pressure reaction devices that use gas as a pressure medium or reaction substrate to participate in reaction research. The design, reaction capacity, performance and production capacity of high-temperature and high-pressure reaction devices using gas as the pressure medium need to be studied and developed in depth.

Contents of the invention

The purpose of the utility model is to provide a high-temperature and high-pressure reaction device for edible spices, which has the characteristics of reasonable structure, safety, and good separation effect of reaction products, and can meet the needs of industrialization.

In order to achieve the purpose of this utility model, the technical scheme adopted comprises: reactor 13, the high-pressure gas generating device that is connected with reactor 13, and the flavor material collection and separation device that is connected with reactor 13, it is characterized in that, Including the structural feature that the end of the reaction device is equipped with a gas purification device.

In the above-mentioned high-temperature and high-pressure reaction device for edible spices, the high-pressure gas generating device includes a diaphragm-type high-pressure gas compressor.

In the high-temperature and high-pressure reaction device for edible spices mentioned above, a safety explosion-proof device 15 is installed at the open end of the reaction kettle.

In the above-mentioned high-temperature and high-pressure reaction device for edible spices, there is a temperature sensor 9 in the reaction kettle for real-time monitoring of the temperature in the kettle.

In the high-temperature and high-pressure reaction device for edible spices, a gas temperature control device 6 is installed between the high-pressure gas generating device and the reaction kettle to properly cool or preheat the high-pressure and high-temperature gas entering the reaction kettle.

In the high-temperature and high-pressure reaction device for edible spices mentioned above, a group of radial sealing devices 14 are arranged between the reaction kettle cover and the kettle body.

The high-temperature and high-pressure reaction device for edible spices mentioned above adopts an electric heating device, and an ohmic heating layer 11 and a cooling interlayer 12 are provided on the outer wall of the reaction kettle 13 .

In the above-mentioned high-temperature and high-pressure reaction device for edible spices, the flavor substance collection and separation device includes two sets of flavor substance collection kettles connected in series.

In the high-temperature and high-pressure reaction device for edible spices mentioned above, a pressure medium gas purification treatment device is connected after the product separation device.

The high-temperature and high-pressure reaction device for edible spices of the utility model adopts an integrated design, and has the advantages of simple operation and safe test. Among them, the safety explosion-proof device 15, the gas temperature control device between the diaphragm type high-pressure gas generating device and the reaction kettle, the adoption of two sets of flavor substance collecting kettles in series and the gas purification device highlight the advantages of safety and environmental friendliness, and greatly optimize the edible The performance of the spice high temperature and high pressure reaction device strengthens the reaction effect. Experiments have proved that: the aroma profile of the reaction fragrance with inert gas as the pressure medium is different from that of the traditional reaction fragrance, and the release of the gas medium meets the requirements of environmental friendliness.

The high-temperature and high-pressure reaction device for edible spices of the utility model is also suitable for chemical raw material synthesis reactions (including hydrogenation reactions, polymerization reactions, carbonyl synthesis reactions, etc.) and subcritical hydrothermal reactions using CO ₂ , ethane and other gases as reaction substrates. chemical field.

Description of drawings

Fig. 1 is the structural representation of the high temperature and high pressure reaction device of the edible spice of the present invention;

Fig. 2 is a sectional view of the reactor of the high-temperature and high-pressure reaction device of the present invention.

Detailed ways

Embodiment of the utility model is described below in conjunction with accompanying drawing:

As shown in Figure 1, 1 is a high-purity gas cylinder, 2 is a material tank, 3 is a diaphragm type high-pressure gas compressor, 4 is a pressure sensor, 5 is a peristaltic pump, 6 is a gas temperature control device, such as a water/oil bath device, 7 is a three-way valve, 8 is an agitator, 9 is a temperature sensor, 10 is an insulation interlayer of a reactor, 11 is an ohmic heating layer of a reactor, 12 is a cooling interlayer of a reactor, 13 is a reactor, and 14 is a radial sealing device. 15 is a safety explosion-proof device, 16 is a flavor substance collection kettle cover, 17 is a cooling interlayer of a flavor substance collection kettle, 18 is a flavor substance collection kettle, 19 is a sealing device for a flavor substance collection kettle, 20 is a pressure medium purification device, and 21 is a vacuum pump, 22,24 are discharge openings. Since this embodiment includes two flavoring substance collecting tanks connected in series, the corresponding two groups of labels are distinguished by subscripts "a" and "b".

It can be seen from Figure 1 that the whole set of high temperature and high pressure reaction device mainly includes 3 parts:

1) High-pressure gas generator part: including high-purity gas cylinder 1, diaphragm-type high-pressure gas compressor 3, and water/oil bath device 6.

The high-pressure gas generating device is one of the keys in the whole high-temperature and high-pressure reaction system, and it occupies an important position in the whole system. The gas (nitrogen, carbon dioxide, air, etc., purity>99.9%, pressure>5MPa) released from the cylinder forms a high-pressure gas with relatively high pressure after passing through the diaphragm type high-pressure gas compressor 3, and then passes through the water/oil bath device 6 to reach the set Enter the reaction kettle 13 after the temperature is fixed, and form a high-pressure environment with a certain initial pressure.

In this embodiment, the diaphragm-type high-pressure gas compressor can avoid the potential harm of gas medium pollution caused by lubricating oil for the plunger rod of the traditional plunger-type compressor.

2) Reactor part: including reactor 13, vacuum pump 21 and temperature sensor 9, etc., the specific structure is shown in Figure 2. In the figure, 8 is a mechanical stirring device, 10 is an insulation interlayer of a reactor, 11 is an ohmic heating layer of a reactor, 12 9a is an internal temperature monitoring sensor, 9b is a heating jacket temperature monitoring sensor, 14 is a radial sealing device, which is a polytetrafluoroethylene sealing assembly in this embodiment, 15 is a safety explosion-proof device, and 4b is a pressure Sensor, 21 is a vacuum pump, and 25 is a reaction kettle base.

The reactor is an important part of the high temperature and high pressure reaction system. The structure and parameters of the reactor directly affect the result of the high temperature and high pressure reaction. The design of the reactor in the utility model is cylindrical, and it is designed and manufactured with stainless steel. The joint part of the cover adopts the radial sealing device 14 of polytetrafluoroethylene, and steel bolts are used to ensure the sealing of the kettle cover and the kettle body, so as to ensure that the reaction material lasts for a certain period of time under the condition of high temperature and high pressure. In this example, the volume of the reactor is 500ml, and the maximum withstand pressure is 60MPa. The external ohmic heating layer can make the temperature of the contents of the reactor reach 300°C. The temperature of the contents of the reactor is controlled by the outer wall, the inner wall The mode of temperature measurement is controlled, and what used in this embodiment is a thermocouple thermometer. The pressure sensor connected to the reaction kettle displays the pressure in the reaction kettle in real time during the reaction, and is connected with a safety explosion-proof device for safety protection. The gas outlet of the reaction kettle is connected with a vacuum pump by a branch pipeline, which can perform pre-degassing treatment on the reaction kettle, purify the reaction system, and avoid the interference of irrelevant gases. The gas inlet of the reaction kettle is connected with a peristaltic pump by using a three-way valve to realize the timing and quantitative supply of materials.

In this embodiment In this embodiment, two sets of three-way valves are used to control the reaction materials and the gas pressure medium in the kettle, while improving the automation level, the defect of pipeline residual pollution is alleviated; by reducing the pipeline of the kettle body The opening simplifies the overall structure. Adding a stirring device on the reaction kettle ensures the uniformity of the material during the reaction process and eliminates the temperature gradient inside the reaction material. In addition, the device can realize industrial barrier-free amplification and meet the needs of industrial production.

3) Material separation part:

After the reaction is over, the mixed product in the reaction kettle is discharged through the discharge valve 22. After the flavor product dissolved and carried by the gas medium is absorbed and separated through two sets of flavor substance collection kettles 18, the gas after the separated product is discharged through 20. Empty after purging. It can not only improve the enrichment and recovery of aroma, but also reduce the burden on the environment.

In this embodiment, the flavor substance collection device is equipped with a circulation temperature control device. By connecting two sets of flavor substance collection tanks in series and adjusting the temperature of the circulating medium, the flavor substance collection device can achieve effective enrichment while overcoming the high volatility of aroma substances. . The gas medium for separating aroma substances is purified to achieve pollution-free discharge and realize the original intention of environmental protection.

The specific operation process of the edible flavor high temperature and high pressure reaction device:

1) Thoroughly clean the system before the reaction.

2) Pump the reaction raw materials into the reaction kettle, and turn on the stirring device.

3) As needed, turn on the vacuum pump to remove the headspace air in the reactor.

4) After adjusting the water bath device in front of the reactor to the set temperature, open the high-pressure gas bottle and the diaphragm type gas high-pressure compressor, and make the gas pressure in the reactor reach the preset value according to the temperature in the reactor.

5) Adjust the temperature control setting meter valve of the reactor so that the ohmic heating layer of the reactor heats the reactor, and react for a period of time after reaching the target temperature and pressure, and open the cooling liquid circulation valve of the cooling interlayer of the reactor to reduce the flow rate of the reaction materials in the reactor. temperature to terminate the reaction.

6) While cooling down, open the cooling circulation system of the flavor substance collection kettle, so that the temperature of the flavor substance collection kettle reaches the set temperature; open the pressure relief valve (7b, 23a, 23b, etc.), and collect the reaction while depressurizing the reaction kettle Possible aroma substances in gaseous media.

7) Collect the reaction materials and enriched aroma products. Turn off the heating system, cooling system, and clean the entire equipment.

Finally, it should be noted that the above examples are only used to illustrate the technical application of the present utility model and not to limit it. Those of ordinary skill in the fields of biology, chemical industry, food, etc. should understand that the technical solutions of the present utility model can be modified or equivalently replaced. , without departing from the spirit and scope of the technical solutions of the present utility model, all of which shall be covered by the claims of the present utility model.

Claims (9)

1, a kind of flavorant high-temperature high-voltage reaction device, comprise reactor, the gases at high pressure generating means that is connected with reactor, and the flavor substance that is connected with reactor is collected separator, it is characterized in that, comprise that also the reaction unit end is provided with the design feature of gas cleaning plant.

2, flavorant high-temperature high-voltage reaction device according to claim 1 is characterized in that, high-voltage generator adopts the diaphragm type gas compressing apparatus.

3, flavorant high-temperature high-voltage reaction device according to claim 1 is characterized in that, at the openend of reactor the safety anti-explosive device is installed.

4, flavorant high-temperature high-voltage reaction device according to claim 1 is characterized in that, the gas attemperating unit is installed between gases at high pressure generating means and reactor.

5, according to claim 1 or 2 or 3 or 4 described flavorant high-temperature high-voltage reaction devices, it is characterized in that the temperature sensor of real-time monitoring temperature in the kettle is arranged in reactor.

6, according to claim 1 or 2 or 3 or 4 described flavorant high-temperature high-voltage reaction devices, it is characterized in that, between the lid of reactor and kettle, be provided with one group of apex combustion seal.

7, according to claim 1 or 2 or 3 or 4 described flavorant high-temperature high-voltage reaction devices, it is characterized in that, be provided with an Ohmic heating interlayer and a cooling sandwith layer at the outer wall of reactor.

According to claim 1 or 2 or 3 or 4 described flavorant high-temperature high-voltage reaction devices, it is characterized in that 8, described flavor substance is collected the flavor substance collection still that separator comprises two groups of series connection.

9, flavorant high-temperature high-voltage reaction device according to claim 8 is characterized in that, is connected with pressure medium gas purification treating apparatus behind the described product separator.

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