阅读说明：本技术 对榴莲果泥自冷型超高压液固相变杀菌的装置及方法 (Device and method for sterilizing durian fruit paste through self-cooling type ultrahigh-pressure liquid-solid phase change ) 是由 于勇 李异凡 胡力晖 于 2020-06-30 设计创作，主要内容包括：本发明属于超高压食品加工领域；本发明公开了一种用于对榴莲果泥的自冷型超高压液固相变杀菌的装置,包括右侧设置开口的防水隔热套桶,在防水隔热套桶的开口处设置与防水隔热套桶可开启相连的套桶盖,在套桶盖与防水隔热套桶之间设有密封装置；在防水隔热套桶的内腔中设置可左右滑动的方形料桶,方形料桶内设有装料区,所述装料区用于放置待杀菌处理的榴莲果泥。本发明还同时提供了利用上述装置进行的对榴莲果泥自冷型超高压液固相变杀菌法。本装置可以直接应用于现有工业化超高压设备内部,使低温-超高压协同杀菌处理成本大大降低。(The invention belongs to the field of ultrahigh pressure food processing; the invention discloses a self-cooling ultrahigh pressure liquid-solid phase change sterilization device for durian fruit paste, which comprises a waterproof heat insulation sleeve barrel with an opening arranged on the right side, a sleeve barrel cover openably connected with the waterproof heat insulation sleeve barrel is arranged at the opening of the waterproof heat insulation sleeve barrel, and a sealing device is arranged between the sleeve barrel cover and the waterproof heat insulation sleeve barrel; but set up the square storage bucket of horizontal slip in the inner chamber of waterproof thermal-insulated sleeve bucket, be equipped with the charging area in the square storage bucket, the charging area is used for placing the durian fruit mud of treating germicidal treatment. The invention also provides a self-cooling ultrahigh-pressure liquid-solid phase change sterilization method for the durian fruit paste by using the device. The device can be directly applied to the interior of the existing industrialized ultrahigh pressure equipment, so that the cost of the low-temperature-ultrahigh pressure synergistic sterilization treatment is greatly reduced.)

1. A device for being directed at self-cooling type superhigh pressure liquid-solid phase transition to durian fruit mud is disinfected, characterized by: the waterproof heat-insulation sleeve barrel comprises a waterproof heat-insulation sleeve barrel (1) with an opening arranged on the right side, a sleeve barrel cover (8) which is openably connected with the waterproof heat-insulation sleeve barrel (1) is arranged at the opening of the waterproof heat-insulation sleeve barrel (1), and a sealing device is arranged between the sleeve barrel cover (8) and the waterproof heat-insulation sleeve barrel (1); the cross section of the waterproof heat-insulating sleeve barrel (1) is in a square ring shape; the cross section of the sleeve barrel cover (8) is square matched with the square ring; a liquid inlet (7) which is communicated with the waterproof heat-insulating sleeve barrel (1) and is provided with a sealing cover is arranged on the side wall of the waterproof heat-insulating sleeve barrel (1);

a chute (4) is arranged on the side wall of the inner cavity of the waterproof heat-insulating sleeve barrel (1); a square charging basket (3) which can slide left and right along a sliding chute (4) is arranged in the inner cavity of the waterproof heat-insulating sleeve barrel (1), the cross section of the square charging basket (3) is shaped,

at least two parallel partition board card slot groups are arranged in the inner cavity of the square charging barrel (3), and each partition board card slot group consists of 2 partition board card slots (6) which are respectively and correspondingly arranged on the front side wall and the rear side wall of the inner cavity of the square charging barrel (3);

the partition plate (5) is inserted into the partition plate clamping groove (6); the area between two adjacent division plates (5) forms a loading area, and the loading area is used for placing the durian fruit paste to be sterilized.

2. The device for self-cooling type ultra-high pressure liquid-solid phase change sterilization of durian fruit puree as claimed in claim 1, wherein:

the form that division board (5) inserted in division board draw-in groove (6) is following arbitrary: a partition plate (5) is inserted into each partition plate clamping groove (6), and a partition plate (5) is inserted into a plurality of partition plate clamping grooves (6) at intervals.

3. The device for self-cooling type ultrahigh pressure liquid-solid phase change sterilization of durian fruit puree as claimed in claim 1 or 2, characterized in that:

the waterproof heat-insulation sleeve barrel (1) is made of flexible heat-insulation rubber;

the sealing means comprise a self-banding band (11); the sleeve cover (8) is sleeved in the right opening of the waterproof heat-insulation sleeve barrel (1), an annular groove (9) is formed along the outer surface of the side wall of the sleeve cover (8), and a self-binding belt (11) is arranged on the outer wall of the opening of the waterproof heat-insulation sleeve barrel (1) corresponding to the groove (9); when the self-binding belt (11) is tightened, the deformation generated by the waterproof heat-insulating sleeve barrel (1) is clamped into the groove (9) of the sleeve barrel cover (8), so that the sealing between the sleeve barrel cover (8) and the waterproof heat-insulating sleeve barrel (1) is realized.

4. The method for sterilizing the durian fruit puree through self-cooling type ultrahigh-pressure liquid-solid phase change by using the device as claimed in any one of claims 1 to 3, is characterized in that:

opening the sleeve barrel cover (8), and pulling out the square charging barrel (3) from the opening of the waterproof heat-insulation sleeve barrel (1);

putting the durian fruit paste to be sterilized into a polyethylene sealing bag, then putting the polyethylene sealing bag into a loading area of a square charging basket (3), and filling gaps in the inner cavity of the square charging basket (3) with crushed ice;

the square charging barrel (3) is put back into the waterproof heat-insulation sleeve barrel (1), and the sleeve barrel cover (8) is closed;

opening a sealing cover of the liquid inlet (7), injecting cooling liquid (2) into the inner cavity of the waterproof heat-insulation sleeve barrel (1) until the inner cavity is full of the cooling liquid, and then covering a sealing cover (8);

the whole device is placed in an ultrahigh pressure containing cavity, and is filled with ultrahigh pressure working fluid to carry out low-temperature and ultrahigh pressure cooperative treatment, so that sterilization is realized.

Technical Field

The invention belongs to the field of ultrahigh pressure food processing; in particular to a device and a method for sterilizing durian fruit paste through self-cooling type ultrahigh-pressure liquid-solid phase change.

Background

The durian contains rich nutrient substances, is a good base for breeding bacteria, and can deteriorate after being placed in the air for several hours at normal temperature. In order to prolong the shelf life of durian, the durian is generally refrigerated by peeling off the pulp, but the quality guarantee problem of durian in transportation and storage cannot be fundamentally solved. The ultrahigh pressure sterilization is used as a non-thermal sterilization method, is successfully applied in commercialization at present, and has the advantages of rapidness, uniformity and quality guarantee. But the independent sterilization effect of the ultrahigh pressure is limited, and researchers find that the sterilization effect can be improved under the synergistic effect of the low temperature and the ultrahigh pressure. However, the conventional low-ultrahigh pressure synergistic sterilization has the overall cooling effect on the ultrahigh pressure cavity in an external cooling liquid mode, the whole processing process is long in time consumption and low in processing efficiency, and meanwhile, ultrahigh pressure equipment is easily damaged by low temperature, so that the service life of the equipment is shortened.

Disclosure of Invention

The invention aims to provide a device and a method for sterilizing durian fruit paste at low temperature and ultrahigh pressure in a self-cooling mode under the action of ultrahigh pressure.

In order to solve the technical problem, the invention provides a self-cooling type ultrahigh pressure liquid-solid phase change sterilization device for durian fruit paste, which comprises a waterproof heat insulation sleeve with an opening arranged on the right side, a sleeve cover which is openably connected with the waterproof heat insulation sleeve is arranged at the opening of the waterproof heat insulation sleeve, and a sealing device is arranged between the sleeve cover and the waterproof heat insulation sleeve; the cross section of the waterproof heat-insulating sleeve barrel is in a square ring shape; the cross section of the sleeve barrel cover is square matched with the square ring; a liquid inlet with a sealing cover communicated with the waterproof heat-insulating sleeve is arranged on the side wall of the waterproof heat-insulating sleeve;

a chute is arranged on the side wall of the inner cavity of the waterproof heat-insulating sleeve barrel; a square charging basket which can slide left and right along the sliding groove is arranged in the inner cavity of the waterproof heat-insulating sleeve barrel, the cross section of the square charging basket is shaped,

namely, the square charging basket consists of a left side surface, a right side surface, a front side surface and a back side surface, and the square charging basket has no top surface, so that an upper opening is formed;

at least two parallel partition board card slot groups are arranged in the inner cavity of the square charging basket, and each partition board card slot group consists of 2 partition board card slots which are respectively and correspondingly arranged on the front side wall and the rear side wall of the inner cavity of the square charging basket;

the partition plate is inserted into the partition plate clamping groove; the area between two adjacent division boards forms a loading area, the loading area is used for placing the durian fruit mud that treats germicidal treatment.

The invention is an improvement of the self-cooling type ultrahigh pressure liquid-solid phase change sterilization device for the durian fruit paste:

the form that the division board inserts in the division board draw-in groove is following arbitrary: a partition plate is inserted into each partition plate clamping groove, and a partition plate is inserted into a plurality of partition plate clamping grooves at intervals. I.e. it can be adjusted according to the size of the material being processed.

The device for sterilizing the durian fruit paste through self-cooling type ultrahigh-pressure liquid-solid phase change is further improved as follows:

the waterproof heat-insulation sleeve barrel is made of flexible heat-insulation rubber (the heat insulation coefficient is 0.3-0.4W/m ∙ K, and the tensile strength is more than 300 MPa);

the waterproof heat-insulating sleeve barrel prepared by adopting the materials according to the shape set by the invention can ensure that the shape of the sleeve barrel can be still kept when liquid (cooling liquid) is not filled;

the sealing device comprises a self-binding belt; the sleeve barrel cover is sleeved in the right opening of the waterproof heat-insulation sleeve barrel, an annular groove is formed along the outer surface of the side wall of the sleeve barrel cover, and a self-binding belt is arranged on the outer wall of the opening of the waterproof heat-insulation sleeve barrel corresponding to the groove; when the self-binding belt is tightened, the deformation generated by the waterproof heat-insulating sleeve barrel is clamped into the groove of the sleeve barrel cover, so that the sealing between the sleeve barrel cover and the waterproof heat-insulating sleeve barrel is realized.

The invention also provides a self-cooling type ultrahigh pressure liquid-solid phase change sterilization method for the durian fruit paste by using the device, which comprises the following steps:

opening the sleeve cover, and pulling out the square charging basket from the opening of the waterproof heat-insulation sleeve;

putting the durian fruit paste to be sterilized into a polyethylene sealing bag, then putting the polyethylene sealing bag into a loading area of a square charging basket, and filling gaps in the inner cavity of the square charging basket with crushed ice;

putting the square charging basket back into the waterproof heat-insulation sleeve barrel, and closing the sleeve barrel cover;

opening the sealing cover of the liquid inlet, injecting cooling liquid (water, salt water and the like) into the inner cavity of the waterproof heat-insulation sleeve until the inner cavity is full of the cooling liquid, and then covering the sealing cover;

the whole device is placed in an ultrahigh pressure containing cavity, and is filled with ultrahigh pressure working fluid to carry out low-temperature and ultrahigh pressure cooperative treatment, so that sterilization is realized.

The ultrahigh pressure is the prior known technology, and in the invention, the maximum pressure of the ultrahigh pressure equipment can be set to be 260MPa, and the pressure maintaining time is 30 s.

In the invention, if the sliding groove is eliminated, friction is generated when the square charging basket enters and exits the waterproof heat-insulating sleeve, and the service life of the waterproof heat-insulating sleeve is reduced. The liquid inlet with the sealing cover is convenient for adding cooling liquid into the waterproof heat-insulation sleeve barrel, and the waterproof heat-insulation sleeve barrel is in a horizontal state as shown in figure 1 when in actual use, so that the cooling liquid cannot be filled into the waterproof heat-insulation sleeve barrel through the right opening of the waterproof heat-insulation sleeve barrel.

The sealing device can prevent the liquid in the waterproof heat-insulation sleeve from leaking.

In the invention:

the durian fruit paste to be treated is packaged by a polyethylene sealing bag, the appearance of the durian fruit paste is roughly square, and the durian fruit paste can be matched with a loading area of a square charging bucket;

the cooling liquid is selected from materials with larger specific heat capacity, such as water or saline water;

the sleeve cover is made of hard materials, so that large deformation can not occur under the extrusion of the self-tying belt 9;

the pressure-transmission self-cooling type durian fruit paste sterilization device and method provided by the invention have the following technical advantages:

1. the device can be directly applied to the interior of the existing industrialized ultrahigh pressure equipment, so that the cost of the low-temperature-ultrahigh pressure synergistic sterilization treatment is greatly reduced.

2. The square sleeve interlayer design can meet the requirement of common package of the existing fruit paste, ensures uniform heat exchange, and improves the utilization rate of the inner cavity of the ultrahigh pressure device to the maximum extent and the sterilization effect.

3. The design of the waterproof heat insulation sleeve greatly prolongs the service life of the ultrahigh pressure equipment and reduces the production cost.

4. The device is inside to be equipped with from the cooling material, and inside charge space is used for the loading of durian fruit mud, carries out adiabatic biography pressure by the waterproof thermal-insulated sleeve in outside, is convenient for carry out low temperature superhigh pressure sterilization treatment to durian fruit mud from the form of cooling.

Drawings

The following describes embodiments of the present invention in further detail with reference to the accompanying drawings.

FIG. 1 is a schematic structural diagram of a self-cooling type ultrahigh pressure liquid-solid phase change sterilization device for durian fruit paste after being cut;

FIG. 2 is a schematic view of the radial cross-sectional configuration of FIG. 1;

fig. 3 is a schematic structural view of the square charging basket 3 in fig. 1.

Detailed Description

The invention will be further described with reference to specific examples, but the scope of the invention is not limited thereto: