CN212395896U

CN212395896U - Anti-pasting decompression concentration device

Info

Publication number: CN212395896U
Application number: CN202021623731.9U
Authority: CN
Inventors: 赵兵; 赵庆生; 常森林; 王晓东
Original assignee: Institute of Process Engineering of CAS
Current assignee: Institute of Process Engineering of CAS
Priority date: 2020-08-06
Filing date: 2020-08-06
Publication date: 2021-01-26
Anticipated expiration: 2030-08-06

Abstract

The utility model relates to an anti-pasting decompression concentration device, which comprises an evaporation chamber, a circulating delivery pump, a gas-liquid separator, a condenser, a liquid collector and a vacuum pump; the circulating delivery pump is used for circulating the liquid to be concentrated flowing out of the bottom of the evaporation chamber to a circulating liquid inlet at the top of the evaporation chamber; the evaporation chamber is provided with a liquid level monitoring piece and a heat exchange jacket; the heat exchange jacket is divided into at least 2 chambers from top to bottom by a partition plate, and each chamber is respectively and independently provided with a heat source inlet and a heat source outlet; the liquid level monitoring piece is used for monitoring the liquid level in the evaporation chamber and controlling the opening and closing of the heat source inlet and the heat source outlet. The gelatinization-preventing decompression concentration device can improve the decompression concentration efficiency and reduce the wall sticking phenomenon of materials without the arrangement of a stirring device; and the structure is simple, the energy consumption is low, and the quality and the activity of the concentrated product can be improved.

Description

Anti-pasting decompression concentration device

Technical Field

The utility model belongs to the technical field of it is concentrated, a decompression enrichment facility is related to, especially relate to a prevent pasting decompression enrichment facility.

Background

In the industries of pharmacy, food, chemical industry and the like, feed liquid is required to be concentrated, and vacuum reduced pressure concentration is common concentration equipment. The existing vacuum decompression concentrator mainly comprises an evaporation heating tank, a condenser, a gas-liquid separator, a liquid receiving barrel and other components, wherein a jacket is arranged on the outer wall of the evaporation heating tank, high-temperature steam is introduced into the jacket for heating a feed liquid, and the evaporation heating pipe is internally vacuumized, so that the boiling point of the feed liquid is reduced, and the feed liquid is gasified at a lower temperature. However, the conventional vacuum concentration device has the problems of long vaporization time and low heat energy utilization rate.

CN 203710712U discloses a decompression concentration device, which comprises a cooling tank, a gas-liquid separation tank and a decompression concentration tank, wherein the top of the decompression concentration tank is provided with a feed inlet, the bottom of the decompression concentration tank is provided with a discharge outlet, and the gas-liquid separation tank is respectively connected with the cooling tank and the decompression concentration tank through a conveying pipeline; the inside heating pipe that is equipped with of decompression concentration tank the decompression concentration tank bottom is equipped with the circulating pump, the circulating pump passes through conveying line and is connected with the decompression concentration tank deck portion is equipped with the shower head, the shower head passes through conveying line and is connected with the circulating pump.

The decompression concentration device improves the efficiency of decompression concentration through the arrangement of the heating pipes, so that the temperature in the decompression concentration tank is uniformly distributed, but the addition of the heating pipes can occupy the area in the decompression concentration tank, so that the decompression concentration tank can only process flowing liquid to be concentrated; if the device is used for a long time, substances with higher viscosity are easily adhered to the outer wall of the heating pipe, and the stable operation of the decompression concentration device is influenced.

CN 203281050U discloses a vacuum decompression concentration tank, including a jar body, vapour and liquid separator, condenser and liquid storage pot, the top of jar body is equipped with the ascending pipe, the jar body be linked together through ascending pipe and vapour and liquid separator, condenser and liquid storage pot connect gradually through the pipeline, jar body top is equipped with explosion-proof machine, the internal (mixing) shaft that is equipped with of jar, explosion-proof machine and (mixing) shaft linkage connection, be equipped with the stirring rake on the (mixing) shaft, be equipped with on the stirring rake and scrape the wall piece, scrape the wall piece and match with jar internal wall.

This concentrated jar of vacuum decompression disperses through explosion proof machine, (mixing) shaft, stirring rake and the setting of scraping the wall piece and treats concentrated material, scrapes the wall piece simultaneously and helps scraping the material of adhesion on jar internal wall, prevents to glue the production of wall. But the arrangement of the explosion-proof motor not only improves the cost of vacuum decompression concentration, but also is not beneficial to the maintenance and the maintenance in the later period.

Similarly, CN 209188143U discloses a vacuum concentration device that reduces pressure, this vacuum concentration device that reduces pressure includes concentrated jar body, the top fixedly connected with motor of concentrated jar body, the bottom of motor output shaft run through concentrated jar body and be connected with the top of bull stick is indefinite, the bull stick is located the inside of concentrated jar body, the bottom fixedly connected with mount of concentrated jar body inner wall, the top of mount and the bottom active link of bull stick, the side surface fixedly connected with connecting rod of bull stick, the one end fixedly connected with who keeps away from the bull stick of connecting rod scrape the pole, scrape the pole and keep away from one side of bull stick and the inner wall active link of concentrated jar body.

This vacuum decompression enrichment facility utilizes motor, bull stick and scrapes setting up of pole to improve the condition of gluing the wall equally, and not only equipment cost is higher, also does not benefit to the maintenance in later stage.

Therefore, the device for relieving the wall sticking phenomenon in the evaporation chamber by changing the structure is provided, so that the equipment cost of evaporation concentration can be reduced, and the difficulty of maintenance of subsequent treatment equipment can also be reduced.

SUMMERY OF THE UTILITY MODEL

The utility model aims to provide an anti-pasting decompression concentration device, which can improve the decompression concentration efficiency and reduce the wall sticking phenomenon of materials without the arrangement of a stirring device; and the anti-pasting decompression concentration device has simple structure and lower energy consumption, and is beneficial to improving the quality and the activity of concentrated products.

In order to achieve the purpose of the utility model, the utility model adopts the following technical proposal:

the utility model provides a prevent pasting decompression concentration device, prevent pasting decompression concentration device includes evaporating chamber, circulating transport pump, vapour and liquid separator, condenser, liquid trap and vacuum pump.

And the circulating delivery pump is used for circulating the liquid to be concentrated flowing out of the bottom of the evaporation chamber to the circulating liquid inlet at the top of the evaporation chamber.

The evaporation chamber is connected with the gas-liquid separator through a steam pipeline, a liquid outlet of the gas-liquid separator is connected with a reflux inlet at the top of the evaporation chamber through a reflux pipe, and a gas outlet of the gas-liquid separator is connected with the condenser.

A condensate outlet of the condenser is connected with a liquid collector; the side wall of the liquid collector is provided with an independent vacuum tube and an air release tube, the vacuum tube is connected with a vacuum pump, and the air release tube is used for vacuum breaking of the anti-pasting decompression concentration device.

The evaporation chamber is provided with a liquid level monitoring piece and a heat exchange jacket; the heat exchange jacket is divided into at least 2 chambers from top to bottom by a partition plate, and each chamber is respectively and independently provided with a heat source inlet and a heat source outlet; the liquid level monitoring piece is used for monitoring the liquid level in the evaporation chamber and controlling the opening and closing of the heat source inlet and the heat source outlet.

When the liquid to be concentrated in the evaporation chamber of the anti-pasting decompression concentration device is concentrated, firstly, a vacuum pump is used to make the interior of the anti-pasting decompression concentration device present a vacuum state so as to realize decompression concentration of the liquid to be concentrated; then the heat source is led into the heat exchange jacket to heat the evaporation chamber, then the circulating liquid flowing out of the bottom of the evaporation chamber and waiting for the concentrated liquid to circulate to the circulating liquid inlet at the top of the evaporation chamber by utilizing the circulating delivery pump, so that the jet flow internal circulation of the concentrated liquid is realized, the circulating rule in the evaporation chamber is changed, the liquid-solid dispersion specific surface area in the evaporation chamber in the decompression concentration process is improved, the heat transfer efficiency is improved, and the decompression concentration is realized; and monitoring the liquid level in the evaporation chamber by using a liquid level monitoring piece, and stopping using the chamber when the liquid level is reduced to be lower than the bottom of the chamber, so that the side wall area of the evaporation chamber corresponding to the chamber is cooled, and the anti-gelatinization is realized.

Illustratively, the heat exchange jacket is divided into a first chamber, a second chamber and a third chamber which are distributed from top to bottom by a partition plate, and each chamber is respectively and independently provided with a heat source inlet and a heat source outlet. When the liquid level in the evaporation chamber is reduced to be lower than the bottom of the first chamber, closing the heat source inlet of the first chamber, namely stopping using the first chamber to provide heat for the evaporation chamber; when the liquid level in the evaporation chamber is reduced to be lower than the bottom of the second chamber, the heat source inlet of the second chamber is closed, namely, the first chamber is stopped from being used for providing heat for the evaporation chamber.

Preferably, when the liquid level in the evaporation chamber is gradually reduced in the first chamber region, the temperature and the flow rate of the heat source flowing into the first chamber are controlled, on the premise of ensuring the temperature in the evaporation chamber, the height of the heat source in the first chamber is not higher than the liquid level in the evaporation chamber, and when the liquid level in the evaporation chamber is reduced to be lower than the bottom of the first chamber, the heat source inlet of the first chamber is closed, namely, the first chamber is stopped from providing heat for the evaporation chamber; when the liquid level in the evaporation chamber is gradually reduced in the second chamber area, controlling the temperature and the flow of the heat source flowing into the second chamber, ensuring that the height of the heat source in the second chamber is not higher than the liquid level in the evaporation chamber on the premise of ensuring the temperature in the evaporation chamber, and closing the heat source inlet of the second chamber when the liquid level in the evaporation chamber is reduced to be lower than the bottom of the second chamber, namely stopping using the second chamber to provide heat for the evaporation chamber; when the liquid level in the evaporation chamber is gradually reduced in the third chamber area, the temperature and the flow of the heat source flowing into the third chamber are controlled, and on the premise of ensuring the temperature in the evaporation chamber, the height of the heat source in the third chamber is not higher than the liquid level in the evaporation chamber until the pressure reduction concentration is completed.

Preferably, the height of the heat exchange jacket does not exceed 2/3 the height of the inner cavity of the evaporation chamber.

The height that the heat transfer pressed from both sides the cover does not exceed the 2/3 of evaporating chamber inner chamber height means, heat transfer pressed from both sides the top cavity top and does not exceed the 2/3 department of evaporating chamber inner chamber. Preferably, the height of the top end of the top chamber of the heat exchange jacket does not exceed the height of the highest liquid level when the evaporation chamber is used.

Preferably, the height of the chamber is 1/10-1/2 of the heat exchange jacket height, which may be, for example, 1/10, 1/9, 1/8, 1/7, 1/6, 1/5, 1/4, 1/3 or 1/2, but is not limited to the recited values, and other values not recited in the range of values are equally applicable.

The heights of at least two cavities in the heat exchange jacket are the same or different, and the technical personnel in the field can reasonably select the cavities according to the needs.

Preferably, the heat exchange jacket is divided into 2-8 chambers from top to bottom by partitions, for example, 2, 3, 4, 5, 6, 7 or 8 chambers, and each chamber is independently provided with a heat source inlet and a heat source outlet.

Preferably, the heat source inlet is disposed at an upper portion of the sidewall of the chamber, and the heat source outlet is disposed at a lower portion of the sidewall of the chamber.

The utility model discloses a set up the heat source import in the upper portion of cavity lateral wall, the heat source export sets up in the lower part of cavity lateral wall, when making the interior liquid level of evaporating chamber descend and the used stop corresponds the cavity, the heat source in the cavity can flow out under the action of gravity to the concentrated solution that has avoided the heat source to remain and has leaded to glues the wall phenomenon.

Preferably, the inlet pipeline of the evaporation chamber for the solution to be concentrated is arranged at the bottom of the evaporation chamber.

The utility model discloses a vacuum pump makes be the vacuum state in the gelatinization-preventing decompression concentration device to the messenger sets up and to treat that the concentrate inlet pipe can conveniently will treat that the concentrate inhales the evaporating chamber cavity in the evaporating chamber bottom.

Preferably, the evaporation chamber is provided with a top cover, and the top cover is of a flip structure, so that the concentrated material can be conveniently taken out.

Preferably, the to-be-concentrated solution inlet pipeline is provided with a circulation branch for connecting with a circulation delivery pump, so that the to-be-concentrated solution flowing out of the bottom of the evaporation chamber during reduced pressure concentration circulates to the circulation solution inlet at the top of the evaporation chamber.

The utility model discloses a setting of circulation branch road makes the structure of evaporating chamber is compacter.

Preferably, the gelatinization preventing reduced-pressure concentration device is arranged in a pry block.

The prying block is arranged to enable the anti-pasting decompression concentration device to be compact in structure, and convenient carrying is convenient to carry out according to different using places.

When the extracting solution in the evaporation chamber of the anti-pasting decompression concentration device is concentrated, firstly, a vacuum pump is used to make the interior of the anti-pasting decompression concentration device present a vacuum state so as to realize decompression concentration of the extracting solution; then let in the heat source in the jacket and make the evaporating chamber heat up, then utilize the circulating delivery pump to circulate the extracting solution that flows out bottom the evaporating chamber to the circulating liquid import at evaporating chamber top, make the efflux inner loop of extracting solution to change the circulation law in the evaporating chamber, improved the liquid-solid dispersion specific surface area in the evaporating chamber among the decompression concentration process, improved heat mass transfer efficiency, thereby realized the utility model discloses "decompression concentration"; and monitoring the liquid level in the evaporation chamber by using a liquid level monitoring piece, and stopping using the chamber when the liquid level is reduced to be lower than the bottom of the chamber, so that the side wall area of the evaporation chamber corresponding to the chamber is cooled, and the anti-gelatinization is realized.

Preferably, the extract comprises any one or a combination of at least two of lycium ruthenicum anthocyanin extract, cistanche polysaccharide extract or plant natural medicine extract, and typical but non-limiting combinations comprise the combination of lycium ruthenicum anthocyanin extract and cistanche polysaccharide extract, the combination of cistanche polysaccharide extract and plant natural medicine extract, the combination of lycium ruthenicum anthocyanin extract and plant natural medicine extract or the combination of lycium ruthenicum anthocyanin extract, cistanche polysaccharide extract and plant natural medicine extract.

Preferably, the plant natural medicine extracting solution comprises any one or a combination of at least two of a hemp extracting solution, a forsythia extracting solution or a gardenia extracting solution; typical but non-limiting combinations include combinations of hemp extract and forsythia extract, combinations of forsythia extract and gardenia extract, combinations of hemp extract and gardenia extract or combinations of hemp extract, forsythia extract and gardenia extract.

Preferably, the temperature of the heat source during the concentration is 100-110 ℃, for example, 110 ℃, 101 ℃, 102 ℃, 103 ℃, 104 ℃, 105 ℃, 106 ℃, 107 ℃, 108 ℃, 109 ℃ or 110 ℃, but not limited to the enumerated values, and other unrecited values within the numerical range are also applicable.

Preferably, the vacuum degree in the evaporation chamber cavity during concentration is-0.06 MPa to-0.05 MPa, such as-0.06 MPa, -0.058MPa, -0.055MPa, -0.052MPa or-0.05 MPa, but not limited to the values listed, and other values not listed in the numerical range are also applicable.

Compared with the prior art, the utility model discloses following beneficial effect has:

(1) the anti-pasting decompression concentration device provided by the utility model changes the internal fluid circulation rule through the arrangement of the circulation delivery pump, improves the liquid-solid dispersion specific surface area, improves the heat transfer efficiency, improves the concentration efficiency, reduces the energy consumption, reduces the damage of concentration to natural products, and improves the quality and the activity of the products;

(2) the utility model discloses a will press from both sides the cover and cut apart into 2 at least cavities outside the evaporating chamber, the liquid level through the evaporating chamber is opened and close to the cavity that presss from both sides the cover to the emergence of gluing the wall phenomenon has effectively been avoided.

Drawings

FIG. 1 is a schematic structural view of an anti-gelatinization pressure-reduction concentration device provided by the present invention;

FIG. 2 is a schematic view showing the structure of an evaporation chamber in the anti-gelatinization pressure-reduction concentration apparatus provided in example 1;

FIG. 3 is a schematic view showing the structure of an evaporation chamber in the anti-gelatinization pressure-reduction concentration apparatus provided in example 2;

FIG. 4 is a schematic view showing the structure of an evaporation chamber in the anti-gelatinization pressure-reduction concentration apparatus provided in example 3.

Wherein: 1, an evaporation chamber; 1-1, a to-be-concentrated solution inlet pipeline; 1-2, a steam pipeline; 1-3, a circulation branch; 2, a heat exchange jacket; 2-1, a first chamber; 2-2, a second chamber; 2-3, a third chamber; 2-4, a fourth chamber; 2-5, a fifth chamber; 2-6, a sixth chamber; 3, circulating a delivery pump; 3-1, circulating liquid inlet; 4, a gas-liquid separator; 4-1, a reflux inlet; 5, a condenser; 6, a liquid collector; 7, a vacuum pump.

Detailed Description

The utility model provides a pasting-proof decompression concentration device as shown in figure 1, which comprises an evaporation chamber 1, a circulating delivery pump 3, a gas-liquid separator 4, a condenser 5, a liquid collector 6 and a vacuum pump 7; the circulating delivery pump 3 is used for circulating the liquid to be concentrated flowing out from the bottom of the evaporation chamber 1 to a circulating liquid inlet 3-1 at the top of the evaporation chamber 1.

The evaporation chamber 1 is connected with a gas-liquid separator 4 through a steam pipeline, a liquid outlet of the gas-liquid separator 4 is connected with a reflux inlet 4-1 at the top of the evaporation chamber 1 through a reflux pipe, and a gas outlet of the gas-liquid separator 4 is connected with a condenser 5.

A condensate outlet of the condenser 5 is connected with a liquid collector 6; the side wall of the liquid collector 6 is provided with an independent vacuum tube and an air release tube, the vacuum tube is connected with the vacuum pump 7, and the air release tube is used for vacuum breaking of the anti-pasting decompression concentration device.

The evaporation chamber 1 is provided with a liquid level monitoring piece and a heat exchange jacket 2; the heat exchange jacket 2 is divided into at least 2 chambers from top to bottom by a partition plate, and each chamber is respectively and independently provided with a heat source inlet and a heat source outlet; the liquid level monitoring part is used for monitoring the liquid level in the evaporation chamber 1 and controlling the opening and closing of the heat source inlet and the heat source outlet; the device comprises an evaporation chamber 1, a to-be-concentrated solution inlet pipeline 1-1, a circulating branch pipeline 1-1 and a circulating delivery pump 3, wherein the to-be-concentrated solution inlet pipeline 1-1 of the evaporation chamber 1 is arranged at the bottom of the evaporation chamber 1, and the circulating branch pipeline 1-1 is used for being connected with the circulating delivery pump 3 so that a to-be-concentrated solution flowing out of the bottom of the evaporation chamber 1 during reduced pressure concentration circulates to a circulating solution inlet 3-1 at the top of.

The height of the heat exchange jacket 2 does not exceed 2/3 of the height of the inner cavity of the evaporation chamber 1; the height of the chamber is 1/10-1/2 of the height of the heat exchange jacket 2.

Further, prevent pasting the decompression enrichment facility and set up in the sled piece to carry out convenient transport according to the difference in use place.

The technical solution of the present invention will be further explained by the following embodiments. It should be understood by those skilled in the art that the described embodiments are merely provided to assist in understanding the present invention and should not be construed as specifically limiting the present invention.

Example 1

The embodiment provides an anti-gelatinization reduced-pressure concentration device which comprises an evaporation chamber 1, a circulating delivery pump 3, a gas-liquid separator 4, a condenser 5, a liquid collector 6 and a vacuum pump 7.

The circulating delivery pump 3 is used for circulating the liquid to be concentrated flowing out from the bottom of the evaporation chamber 1 to a circulating liquid inlet 3-1 at the top of the evaporation chamber 1.

The structure schematic diagram of the evaporation chamber 1 is shown in fig. 2, and the evaporation chamber 1 is provided with a liquid level monitoring piece and a heat exchange jacket 2; the heat exchange jacket 2 is divided into a first chamber 2-1, a second chamber 2-2, a third chamber 2-3, a fourth chamber 2-4, a fifth chamber 2-5 and a sixth chamber 2-6 which are distributed from top to bottom by a partition plate, each chamber is respectively and independently provided with a heat source inlet and a heat source outlet, the heat source inlet is arranged at the upper part of the side wall of the chamber, and the heat source outlet is arranged at the lower part of the side wall of the chamber; the liquid level monitoring piece is used for monitoring the liquid level in the evaporation chamber 1 and controlling the opening and closing of the heat source inlet and the heat source outlet.

The top end of the top chamber of the heat exchange jacket 2 is not more than 2/3 of the inner cavity of the evaporation chamber 1, and the heights of the chambers are the same and are 1/6 of the height of the heat exchange jacket 2.

The evaporation chamber 1 is provided with a top cover which is of a flip structure, so that the concentrated material can be conveniently taken out; a to-be-concentrated solution inlet pipeline 1-1 of the evaporation chamber 1 is arranged at the bottom of the evaporation chamber 1; the inlet pipeline 1-1 for the solution to be concentrated is provided with a circulating branch which is used for being connected with a circulating delivery pump 3, so that the solution to be concentrated flowing out from the bottom of the evaporation chamber 1 during decompression concentration circulates to a circulating solution inlet 3-1 at the top of the evaporation chamber 1.

When the extracting solution is concentrated by using the embodiment, firstly, the vacuum pump 7 is used to make the anti-pasting decompression concentration device in a vacuum state, and the extracting solution to be concentrated is sucked into the chamber of the evaporation chamber 1 from the inlet pipeline 1-1 of the extracting solution to be concentrated; then a heat source is introduced into the first chamber 2-1, the second chamber 2-2, the third chamber 2-3, the fourth chamber 2-4, the fifth chamber 2-5 and the sixth chamber 2-6, so that the heat exchange jacket 2 provides heat for the inside of the evaporation chamber 1, then the liquid to be concentrated flowing out from the bottom of the evaporation chamber 1 is circulated to a circulating liquid inlet 3-1 at the top of the evaporation chamber 1 by using a circulating delivery pump 3, and the liquid to be concentrated is subjected to internal jet circulation, so that the circulation rule in the evaporation chamber 1 is changed, the specific surface area of liquid-solid dispersion in the evaporation chamber 1 in the process of decompression concentration is improved, and the heat mass transfer efficiency is improved.

And monitoring the liquid level in the evaporation chamber 1 by using a liquid level monitoring part, and stopping using the chamber when the liquid level is reduced to be lower than the bottom of the chamber, so that the side wall area of the evaporation chamber 1 corresponding to the chamber is cooled, and the anti-gelatinization is realized. Specifically, the method comprises the following steps:

(a) when the liquid level in the evaporation chamber 1 is gradually reduced in the area of the first chamber 2-1, controlling the temperature and the flow rate of a heat source flowing into the first chamber 2-1, ensuring that the height of the heat source in the first chamber 2-1 is not higher than the liquid level in the evaporation chamber 1 on the premise of ensuring the temperature in the evaporation chamber 1, and when the liquid level in the evaporation chamber 1 is reduced to be lower than the bottom of the first chamber 2-1, closing the heat source inlet of the first chamber 2-1, namely stopping using the first chamber 2-1 to provide heat for the evaporation chamber 1;

(b) when the liquid level in the evaporation chamber 1 is gradually reduced in the area of the second chamber 2-2, controlling the temperature and the flow rate of the heat source flowing into the second chamber 2-2, ensuring that the height of the heat source in the second chamber 2-2 is not higher than the liquid level in the evaporation chamber 1 on the premise of ensuring the temperature in the evaporation chamber 1, and when the liquid level in the evaporation chamber 1 is reduced to be lower than the bottom of the second chamber 2-2, closing the heat source inlet of the second chamber 2-2, namely stopping using the second chamber 2-2 to provide heat for the evaporation chamber 1;

(c) when the liquid level in the evaporation chamber 1 is gradually reduced in the area of the third chamber 2-3, controlling the temperature and the flow rate of the heat source flowing into the third chamber 2-3, ensuring that the height of the heat source in the third chamber 2-3 is not higher than the liquid level in the evaporation chamber 1 on the premise of ensuring the temperature in the evaporation chamber 1, and closing the heat source inlet of the third chamber 2-3 when the liquid level in the evaporation chamber 1 is reduced to be lower than the bottom of the third chamber 2-3, namely stopping using the third chamber 2-3 to provide heat for the evaporation chamber 1;

(d) when the liquid level in the evaporation chamber 1 is gradually reduced in the region of the fourth chamber 2-4, controlling the temperature and the flow rate of the heat source flowing into the fourth chamber 2-4, ensuring that the height of the heat source in the fourth chamber 2-4 is not higher than the liquid level in the evaporation chamber 1 on the premise of ensuring the temperature in the evaporation chamber 1, and when the liquid level in the evaporation chamber 1 is reduced to be lower than the bottom of the fourth chamber 2-4, closing the heat source inlet of the fourth chamber 2-4, namely stopping using the fourth chamber 2-4 to provide heat for the evaporation chamber 1;

(e) when the liquid level in the evaporation chamber 1 is gradually reduced in the area of the fifth chamber 2-5, controlling the temperature and the flow rate of the heat source flowing into the fifth chamber 2-5, ensuring that the height of the heat source in the fifth chamber 2-5 is not higher than the liquid level in the evaporation chamber 1 on the premise of ensuring the temperature in the evaporation chamber 1, and when the liquid level in the evaporation chamber 1 is reduced to be lower than the bottom of the fifth chamber 2-5, closing the heat source inlet of the fifth chamber 2-5, namely stopping using the fifth chamber 2-5 to provide heat for the evaporation chamber 1;

(f) when the liquid level in the evaporation chamber 1 is gradually reduced in the area of the sixth chamber 2-6, the temperature and the flow rate of the heat source flowing into the sixth chamber 2-6 are controlled, and on the premise of ensuring the temperature in the evaporation chamber 1, the height of the heat source in the sixth chamber 2-6 is not higher than the liquid level in the evaporation chamber 1 until the decompression concentration is completed.

When the concentration is finished, the heat exchange jacket 2 stops providing heat for the evaporation chamber 1, and the gas release pipe is used for breaking vacuum for the anti-pasting decompression concentration device.

Example 2

The structure schematic diagram of the evaporation chamber 1 is shown in fig. 3, and the evaporation chamber 1 is provided with a liquid level monitoring piece and a heat exchange jacket 2; the heat exchange jacket 2 is divided into a first chamber 2-1, a second chamber 2-2 and a third chamber 2-3 which are distributed from top to bottom by a partition plate, each chamber is respectively and independently provided with a heat source inlet and a heat source outlet, the heat source inlet is arranged at the upper part of the side wall of the chamber, and the heat source outlet is arranged at the lower part of the side wall of the chamber; the liquid level monitoring piece is used for monitoring the liquid level in the evaporation chamber 1 and controlling the opening and closing of the heat source inlet and the heat source outlet.

The top end of the top cavity of the heat exchange jacket 2 is not more than 2/3 of the inner cavity of the evaporation chamber 1, the height of the first cavity 2-1 is 1/6 of the height of the heat exchange jacket 2, the height of the second cavity 2-2 is 1/3 of the height of the heat exchange jacket 2, and the height of the third cavity 2-3 is 1/2 of the height of the heat exchange jacket 2.

When the extracting solution is concentrated by using the embodiment, firstly, the vacuum pump 7 is used to make the anti-pasting decompression concentration device in a vacuum state, and the extracting solution to be concentrated is sucked into the chamber of the evaporation chamber 1 from the inlet pipeline 1-1 of the extracting solution to be concentrated; then a heat source is introduced into the first chamber 2-1, the second chamber 2-2 and the third chamber 2-3, so that the heat exchange jacket 2 provides heat for the inside of the evaporation chamber 1, and then the solution to be concentrated flowing out from the bottom of the evaporation chamber 1 is circulated to the circulating solution inlet 3-1 at the top of the evaporation chamber 1 by using the circulating delivery pump 3, so that the solution to be concentrated is subjected to jet internal circulation, thereby changing the circulation rule in the evaporation chamber 1, improving the specific surface area of liquid-solid dispersion in the evaporation chamber 1 in the process of reduced pressure concentration and improving the heat and mass transfer efficiency.

(c) when the liquid level in the evaporation chamber 1 is gradually reduced in the area of the third chamber 2-3, the temperature and the flow rate of the heat source flowing into the third chamber 2-3 are controlled, and on the premise of ensuring the temperature in the evaporation chamber 1, the height of the heat source in the third chamber 2-3 is not higher than the liquid level in the evaporation chamber 1 until the decompression concentration is completed.

Example 3

The structure schematic diagram of the evaporation chamber 1 is shown in fig. 4, and the evaporation chamber 1 is provided with a liquid level monitoring piece and a heat exchange jacket 2; the heat exchange jacket 2 is divided into a first cavity 2-1 and a second cavity 2-2 which are distributed from top to bottom by a partition plate, each cavity is respectively and independently provided with a heat source inlet and a heat source outlet, the heat source inlet is arranged at the upper part of the side wall of the cavity, and the heat source outlet is arranged at the lower part of the side wall of the cavity; the liquid level monitoring piece is used for monitoring the liquid level in the evaporation chamber 1 and controlling the opening and closing of the heat source inlet and the heat source outlet.

The top end of the top chamber of the heat exchange jacket 2 is not more than 2/3 of the inner cavity of the evaporation chamber 1, and the heights of the chambers are the same and are 1/2 of the height of the heat exchange jacket 2.

When the extracting solution is concentrated by using the embodiment, firstly, the vacuum pump 7 is used to make the anti-pasting decompression concentration device in a vacuum state, and the extracting solution to be concentrated is sucked into the chamber of the evaporation chamber 1 from the inlet pipeline 1-1 of the extracting solution to be concentrated; then a heat source is introduced into the first cavity 2-1 and the second cavity 2-2, so that the heat exchange jacket 2 provides heat for the inside of the evaporation chamber 1, and then the circulating delivery pump 3 is utilized to circulate the solution to be concentrated flowing out from the bottom of the evaporation chamber 1 to the circulating solution inlet 3-1 at the top of the evaporation chamber 1, so that the solution to be concentrated is subjected to internal jet circulation, thereby changing the circulation rule in the evaporation chamber 1, improving the specific surface area of liquid-solid dispersion in the evaporation chamber 1 in the process of reduced pressure concentration, and improving the heat mass transfer efficiency.

(b) when the liquid level in the evaporation chamber 1 is gradually reduced in the area of the second chamber 2-2, the temperature and the flow rate of the heat source flowing into the second chamber 2-2 are controlled, and on the premise of ensuring the temperature in the evaporation chamber 1, the height of the heat source in the second chamber 2-2 is not higher than the liquid level in the evaporation chamber 1 until the decompression concentration is completed.

Comparative example 1

This comparative example provides a vacuum concentration apparatus, which is the same as that of example 1 except that the heat exchange jacket 2 is an integral chamber and the evaporation chamber 1 is not provided with a liquid level detection member, as compared with example 1.

When the decompression concentration device provided by the comparative example is used for decompressing and concentrating the extracting solution, the liquid level in the heat exchange jacket 2 is not changed, and the inner wall of the evaporation chamber 1 after decompression and concentration is finished has obvious wall sticking phenomenon.

Application example 1

The application example provides an application of the anti-pasting reduced-pressure concentration device provided in application example 1 in concentrating a black wolfberry anthocyanin extracting solution, wherein the concentration of anthocyanin in the black wolfberry anthocyanin extracting solution is 0.796mg/mL, and the total volume is 5L.

When the anti-gelatinization pressure-reduction concentration device is used for concentrating the lycium ruthenicum anthocyanin extracting solution, the lycium ruthenicum extracting solution at the bottom of the evaporation chamber 1 is circulated to the top of the evaporation chamber 1 by the circulating conveying pump 33, so that the lycium ruthenicum extracting solution is circulated in a jet flow mode, the circulation rule in the evaporation chamber 1 is changed, the specific surface area of liquid-solid dispersion in the evaporation chamber 1 in the pressure-reduction concentration process is increased, the heat and mass transfer efficiency is increased, the concentration efficiency is increased, the energy consumption is reduced, the vacuum degree in the evaporation chamber 1 in the concentration process is-0.05 MPa, and the concentration multiple is 4 times.

When in concentration, the temperature of the heat source in the first chamber 2-1 is 100 ℃; the temperature of the heat source in the second chamber 2-2 is 102 ℃; the temperature of the heat source in the third chamber 2-3 is 104 ℃; the temperature of the heat source in the fourth chamber 2-4 is 106 ℃; the temperature of the heat source in the fifth chamber 2-5 is 108 ℃; the temperature of the heat source in the sixth chamber 2-6 is 110 deg.c.

The liquid levels in the first chamber 2-1, the second chamber 2-2, the third chamber 2-3, the fourth chamber 2-4, the fifth chamber 2-5 and the sixth chamber 2-6 are controlled by the arrangement of the liquid level monitoring part, so that the liquid level in the heat exchange jacket 2 is not more than the liquid level of the extracting solution in the evaporation chamber 1 all the time. No wall sticking phenomenon exists after the concentration is finished, and the influence of the wall sticking phenomenon on the concentration is improved, so that the damage of the concentration on natural products is reduced, and the quality and the activity of the products are maintained.

And taking out the concentrated product from the top cover of the evaporation chamber 1, wherein the total mass of anthocyanin in the lycium ruthenicum anthocyanin extracting solution before concentration is 3.980g, the mass of anthocyanin after concentration is 3.781g, and the mass loss is controlled within 5%.

Application example 2

The application example provides an application of the anti-pasting reduced-pressure concentration device provided in application example 1 to concentration of lycium ruthenicum anthocyanin extract, and the rest of the application example is the same as application example 1 except that the temperature of the heat source in the first chamber 2-1 is 110 ℃, the temperature of the heat source in the second chamber 2-2 is 108 ℃, the temperature of the heat source in the third chamber 2-3 is 106 ℃, the temperature of the heat source in the fourth chamber 2-4 is 104 ℃, the temperature of the heat source in the fifth chamber 2-5 is 102 ℃, and the temperature of the heat source in the sixth chamber 2-6 is 100 ℃.

And (3) taking out the concentrated product from the top cover of the evaporation chamber 1, wherein the total mass of anthocyanin in the lycium ruthenicum anthocyanin extracting solution before concentration is 3.980g, the mass of anthocyanin after concentration is 3.713g, and the mass loss is slightly higher than that of the anthocyanin in the application example 1.

Application example 3

The application example provides an application of the anti-pasting decompression concentration device provided in the application example 2 in concentrating a cistanche phenylethanoid glycoside extracting solution, wherein the concentration of echinacoside in the cistanche phenylethanoid glycoside extracting solution is 0.635mg/mL, the concentration of verbascoside is 0.349mg/mL, and the total volume is 5L.

When the anti-gelatinization decompression concentration device is used for concentrating the cistanche phenylethanoid glycoside extracting solution, the circulating delivery pump 33 circulates the cistanche phenylethanoid glycoside extracting solution at the bottom of the evaporation chamber 11 to the top of the evaporation chamber 1 to enable the cistanche phenylethanoid glycoside extracting solution to circulate in a jet flow, so that the circulation rule in the evaporation chamber 1 is changed, the specific surface area of liquid-solid dispersion in the evaporation chamber 1 in the decompression concentration process is improved, the heat transfer efficiency is improved, the concentration efficiency is improved, the energy consumption is reduced, the vacuum degree in the evaporation chamber 1 in the concentration process is-0.05 MPa, and the concentration multiple is 4 times.

When in concentration, the temperature of the heat source in the first chamber 2-1 is 100 ℃; the temperature of the heat source in the second chamber 2-2 is 105 ℃; the temperature of the heat source in the third chamber 2-3 was 110 deg.c.

The liquid level in the first chamber 2-1, the second chamber 2-2 and the third chamber 2-3 is controlled by the arrangement of the liquid level monitoring part, so that the liquid level in the heat exchange jacket 2 is not more than the liquid level of the extracting solution in the evaporation chamber 1 all the time. No wall sticking phenomenon exists after the concentration is finished, and the influence of the wall sticking phenomenon on the concentration is improved, so that the damage of the concentration on natural products is reduced, and the quality and the activity of the products are maintained.

Taking out the concentrated product from the top cover of the evaporation chamber 1, wherein the mass of the helichryside and the verbascoside of the cistanche phenylethanoid glycoside extracting solution before concentration are respectively 3.175g and 1.725g, the mass of the helichryside and the verbascoside after concentration are respectively 3.0g and 1.613g by calculation, and the mass loss is controlled within the range of 5-10%.

Application example 4

When the anti-gelatinization decompression concentration device is used for concentrating the cistanche phenylethanoid glycoside extracting solution, the circulating delivery pump 33 circulates the cistanche phenylethanoid glycoside extracting solution at the bottom of the evaporation chamber 11 to the top of the evaporation chamber 1 to enable the cistanche phenylethanoid glycoside extracting solution to circulate in a jet flow, so that the circulation rule in the evaporation chamber 1 is changed, the specific surface area of liquid-solid dispersion in the evaporation chamber 1 in the decompression concentration process is improved, the heat transfer efficiency is improved, the concentration efficiency is improved, the energy consumption is reduced, the vacuum degree in the evaporation chamber 1 in the concentration process is-0.06 MPa, and the concentration multiple is 4 times.

When in concentration, the temperature of the heat source in the first chamber 2-1 is 103 ℃; the temperature of the heat source in the second chamber 2-2 is 105 ℃; the temperature of the heat source in the third chamber 2-3 was 108 ℃.

Taking out the concentrated product from the top cover of the evaporation chamber 1, wherein the mass of the helichryside and the verbascoside of the cistanche phenylethanoid glycoside extracting solution before concentration are respectively 3.175g and 1.725g, the mass of the helichryside and the verbascoside after concentration are respectively 2.984g and 1.601g by calculation, and the mass loss is controlled within the range of 5-10%.

Application example 5

The application example provides an application of the anti-pasting decompression concentration device provided in the application example 3 in concentrating cistanche phenylethanoid glycoside extract, wherein the concentration of echinacoside in the cistanche phenylethanoid glycoside extract is 0.635mg/mL, the concentration of verbascoside is 0.349mg/mL, and the total volume is 5L.

When in concentration, the temperature of the heat source in the first chamber 2-1 is 100 ℃; the temperature of the heat source in the second chamber 2-2 is 110 deg.c.

The liquid level in the first cavity 2-1 and the liquid level in the second cavity 2-2 are controlled by the arrangement of the liquid level monitoring piece, so that the liquid level in the heat exchange jacket 2 does not exceed the liquid level of the extracting solution in the evaporation chamber 1 all the time. No wall sticking phenomenon exists after the concentration is finished, and the influence of the wall sticking phenomenon on the concentration is improved, so that the damage of the concentration on natural products is reduced, and the quality and the activity of the products are maintained.

Taking out the concentrated product from the top cover of the evaporation chamber 1, wherein the mass of the helichryside and the verbascoside of the cistanche phenylethanoid glycoside extracting solution before concentration are respectively 3.175g and 1.725g, the mass of the helichryside and the verbascoside after concentration are respectively 2.976g and 1.595g by calculation, and the mass loss is controlled within the range of 5-10%.

Comparative application example 1

This comparison application example provides an application that the concentrated to black matrimony vine anthocyanin extract liquid was carried out to the vacuum concentration device that application comparative example 1 provided, and the heat source temperature of heat exchange jacket 2 is 105 ℃ during the concentration. Because the liquid level in the heat exchange jacket 2 is not reduced along with the liquid level reduction of the extracting solution, obvious wall sticking phenomenon exists in the evaporation chamber 1 after the concentration is finished.

To sum up, the utility model provides a prevent pasting decompression enrichment facility passes through the setting of circulating delivery pump 3 and clamp cover, through changing the inside fluid circulation law, improves liquid solid dispersion specific surface area, improves heat mass transfer efficiency, improves concentration efficiency, reduces the energy consumption, reduces the concentrated destruction to natural product, improves the quality and the activity of product.

The applicant states that the above description is only a specific embodiment of the present invention, but the protection scope of the present invention is not limited thereto, and those skilled in the art should understand that any changes or substitutions easily conceivable by those skilled in the art within the technical scope of the present invention are within the protection scope and the disclosure scope of the present invention.

Claims

1. The anti-gelatinization reduced-pressure concentration device is characterized by comprising an evaporation chamber, a circulating delivery pump, a gas-liquid separator, a condenser, a liquid collector and a vacuum pump;

the circulating delivery pump is used for circulating the liquid to be concentrated flowing out of the bottom of the evaporation chamber to a circulating liquid inlet at the top of the evaporation chamber;

the evaporation chamber is connected with the gas-liquid separator through a steam pipeline, a liquid outlet of the gas-liquid separator is connected with a reflux inlet at the top of the evaporation chamber through a reflux pipe, and a gas outlet of the gas-liquid separator is connected with the condenser;

a condensate outlet of the condenser is connected with a liquid collector; the side wall of the liquid collector is provided with an independent vacuum tube and an air release tube, the vacuum tube is connected with a vacuum pump, and the air release tube is used for breaking vacuum of the anti-pasting decompression concentration device;

2. The device for preventing gelatinization and concentrating under reduced pressure of claim 1, wherein the height of said heat exchange jacket does not exceed 2/3 the height of the inner chamber of the evaporation chamber.

3. The anti-gelatinization, reduced-pressure concentration device according to claim 2, wherein the height of said chamber is 1/10-1/2 of heat exchange jacket height.

4. The anti-pasting reduced pressure concentration device according to any one of claims 1 to 3, wherein the heat exchange jacket is divided into 2 to 8 chambers from top to bottom by a partition plate, and each chamber is independently provided with a heat source inlet and a heat source outlet.

5. The anti-gelatinization reduced pressure concentration device according to claim 4, wherein the heat source inlet is provided at an upper portion of a side wall of the chamber, and the heat source outlet is provided at a lower portion of the side wall of the chamber.

6. The anti-pasting decompression concentration device according to claim 5, wherein the inlet pipeline of the evaporation chamber for the solution to be concentrated is arranged at the bottom of the evaporation chamber.

7. The anti-pasting decompression concentration device according to claim 6, wherein the inlet pipeline of the solution to be concentrated is provided with a circulation branch for connecting with a circulation delivery pump, so that the solution to be concentrated flowing out from the bottom of the evaporation chamber during decompression concentration circulates to the circulation solution inlet at the top of the evaporation chamber.

8. The gelatinization-preventing, reduced-pressure concentration apparatus as claimed in claim 1, wherein the gelatinization-preventing, reduced-pressure concentration apparatus is provided in a pry block.