Flash cooling sterilization machine

Abstract

The utility model relates to a flash cooling sterilization machine which is characterized in that materials supplied by a feeding system and steam injected by a steam injection system are mixed, then enter a temperature maintaining system for sterilization, then enter a flash cooling system for cooling and discharging, and are cooled by a condensation system assisting a flash evaporation system; the feeding pump is arranged on a discharging pipeline of the feeding tank; the injection pipe, the mixer and the reversing valve are sequentially arranged on a discharging pipeline of the feeding tank, a discharging pipeline of the reversing valve is connected with the feeding tank and the temperature maintaining tank, and the steam adjusting valve is arranged on an air inlet pipeline of the injection pipe. A tank pressure regulating valve is arranged on the temperature holding tank, and a discharging pipeline of the temperature holding tank is connected with the flash cooling tank; an injection pump is arranged on an air outlet pipeline of the temperature holding tank, a discharging pump is arranged on a discharging pipeline, and steam is conveyed to the condenser to be cooled through the injection pump. Compared with the prior art, the utility model has the advantages that the sterilization is more thorough, the heat damage of products is reduced, the yield of sterilized materials is higher, and the material sterilization is ensured to meet the process requirements.

Description

TECHNICAL FIELD

[0001] The utility model belongs to the technical field of sterilization machine, and relates to a flash cooling sterilization machine. BACKGROUND

[0002] At present, the conventional sterilization machine for tomato sauce existing on the market has problems of low heat exchange efficiency, long heating time, large heat loss, high steam energy consumption, incomplete sterilization of bacterial flora and short product warranty period. In addition, in the sterilization process of the traditional sterilization machine, the material color is deepened, the nutritional ingredients are destroyed and the product quality is affected due to long heat exchange time. The traditional sterilization machine is not suitable for producing tomato sauce with ultra-high viscosity, and has high risk of coking during production, long equipment cleaning time and large waste of cleaning liquid.

[0003] Patent CN102232499A discloses a sterilization method and device for jam and juice by steam direct heating and flash cooling, which comprises the following steps: mixing jam or juice raw material with steam, rapidly heating to sterilization temperature to obtain high-temperature material; sterilizing the material by heat preservation; rapidly cooling the material by flash cooling method; the device comprises a steam injection type heater, a holding tank and a flash cooling device connected in sequence, the flash cooling device comprises a flash cooling device connected with the holding tank and a vacuum pump connected with the flash cooling device. However, the patent lacks a control mechanism for the material and process, and it is difficult to ensure that the steam heating and flash cooling process maintains the set conditions, and the sterilized material cannot stably meet the required conditions. UTILITY MODEL CONTENTS

[0004] The utility model discloses a flash cooling sterilization machine, which can overcome at least one of the defects of the prior art, sterilize more thoroughly, reduce the thermal damage to the product, increase the yield of the sterilized material and ensure that the sterilization of the material meets the process requirements.

[0005] The purpose of the utility model can be achieved by the following technical solutions:

[0006] One of the technical solutions of the utility model is to provide a flash cooling sterilization machine, which comprises a feeding system, a steam injection system, a temperature holding system, a flash cooling system and a condensing system. The material supplied by the feeding system and the steam injected by the steam injection system are mixed, then enter the temperature holding system for sterilization and then enter the flash cooling system for cooling and discharging. The condensing system assists the flash cooling system in cooling.

[0007] The feeding system comprises a feeding tank and a feeding pump, and the feeding pump is arranged on the discharging pipeline of the feeding tank. The feeding tank temporarily stores the incoming material, and the feeding pump delivers the material to the temperature holding system.

[0008] The steam injection system comprises an injection pipe, a mixer, a reversing valve and a steam regulating valve, the injection pipe, the mixer and the reversing valve are sequentially arranged on a discharge pipeline of the feed tank, the discharge pipelines of the reversing valve are connected with the feed tank and the holding tank respectively, the steam regulating valve is arranged on an air inlet pipeline of the injection pipe, the material discharged from the feed tank is sprayed into steam for heating when passing through the injection pipe, the steam and the material are fully mixed in the mixer until the temperature is stable, the discharge direction of the material is switched by the reversing valve, the material discharged from the mixer is recycled back to the feed tank when the temperature of the material is not enough, and the material is delivered to the holding tank after the temperature of the material discharged from the mixer reaches the process requirement, and the flow of the steam is adjusted by the steam regulating valve, so that the temperature of the material is controlled.

[0009] The holding system comprises a holding tank and a tank pressure regulating valve, the tank pressure regulating valve is arranged on the holding tank, a discharge pipeline of the holding tank is connected with a flash cooling tank, the temperature of the heated material is maintained by the holding tank for sterilization, the holding tank is always maintained in a state of micro-positive pressure by the tank pressure regulating valve, good sterilization is maintained, and air bubbles are not easy to be generated, which is beneficial to the integrity of the material.

[0010] The flash cooling system comprises a flash cooling tank, a jet pump and a discharge pump, the jet pump is arranged on an air outlet pipeline of the holding tank, and the discharge pump is arranged on a discharge pipeline, the steam is delivered to a condenser for cooling by the jet pump, the flash cooling tank cooperates with the jet pump, the jet pump and a vacuum pump to generate negative pressure, so that the steam and the material in the flash cooling tank are rapidly separated, the material sterilized by the holding is rapidly cooled, the flow of the steam is adjusted by the jet pump, so that the temperature and the vacuum degree in the flash cooling tank are controlled, and the material is uniformly delivered to a filling machine for discharge and filling by the discharge pump.

[0011] The condensing system comprises a condenser, the steam separated from the flash cooling tank is cooled by the condenser, and the steam enters the condenser and is rapidly cooled after being mixed with cooling water of a cooling tower.

[0012] As a preferred technical solution, the feed system further comprises a feeding valve arranged on a feeding pipeline of the feed tank, whether the external material is fed is controlled by the feeding valve.

[0013] Further, the feed system further comprises a stirrer arranged in the feed tank, the temperature and the concentration of the material are uniformized by the stirrer.

[0014] Further, the steam injection system further comprises a feed regulating valve arranged on a discharge pipeline of the reversing valve connected with the holding tank, the flow of the material is controlled by the feed regulating valve.

[0015] Further, the steam injection system further comprises a one-way valve, the steam regulating valve and the one-way valve are sequentially arranged on the air inlet pipeline of the injection pipe, the feeding direction of the steam is controlled by the one-way valve to be the only direction of the air inlet pipeline of the injection pipe, and reverse leakage is prevented.

[0016] Further, the steam injection system further comprises a filter, the filter and the steam regulating valve are sequentially arranged on the air inlet pipeline of the injection pipe, impurities in the steam are filtered by the filter, and the flow regulation of the steam, valve blockage and material quality interference are prevented.

[0017] Further, the temperature holding system further comprises a discharge regulating valve, the discharge regulating valve is arranged on the discharge pipeline of the temperature holding tank, the liquid level in the temperature holding tank is kept stable by the discharge regulating valve, and the sterilization time of the material is ensured to be consistent.

[0018] Further, the condensing system further comprises an auxiliary condenser and an auxiliary jet pump, the auxiliary jet pump is arranged on the air outlet pipeline of the condenser, the steam is transported to the auxiliary condenser for cooling by the auxiliary jet pump, a small amount of steam that is not cooled after entering the condenser is secondarily cooled by the auxiliary condenser, the flow of the steam is secondarily regulated by the auxiliary jet pump, and the temperature and vacuum degree in the condenser are controlled.

[0019] Further, the condensing system further comprises a cooling water tank and a water outlet pump, the water outlet pipelines of the condenser and the auxiliary condenser are connected with the cooling water tank, the water outlet pipeline of the cooling water tank is provided with the water outlet pump, the condensed water of the steam finally falls into the cooling water tank together with the cooling water of the cooling tower, and the water is transported to the cooling tower by the water outlet pump.

[0020] Further, the condensing system further comprises a vacuum pump, the auxiliary condenser is connected with the vacuum pump, the vacuum pump generates negative pressure to keep a low-temperature environment of the auxiliary condenser, and since the condensed water of the steam and the cooling water are finally discharged in the form of water, vacuum pumping can prevent external air interference.

[0021] As a preferred technical solution, the condensing system further comprises a backwater pump, the upper portion of the auxiliary condenser is connected with the cooling water tank through the backwater pump, since the auxiliary condenser has a small volume, the water level in the auxiliary condenser may be too high, causing the vacuum pump to be damaged by being sucked in, and the excess water is discharged through the backwater pump.

[0022] Further, the flash cooling sterilization machine further comprises a clean-in-place (CIP) cleaning system, the CIP cleaning system comprises a cleaning pipeline and a cleaning pump, the feed tank is configured with a CIP cleaning liquid, the cleaning liquid is transported to the temperature holding tank and the flash cooling tank for cleaning through the cleaning pipeline, the cleaning pump is arranged on the cleaning pipeline and is used in cooperation with the transportation, and the cleaning waste liquid in the temperature holding tank is discharged together with the discharge pump after entering the flash cooling tank.

[0023] As a preferred technical scheme, the in-situ cleaning liquid of the feed tank is circulated through the cleaning circuit, and is stirred in the feed tank by the stirrer to make the temperature and concentration of the in-situ cleaning liquid uniform, and after cleaning of the feed tank, is transported to the temperature holding tank and the flash cooling tank for cleaning.

[0024] As a preferred technical scheme, the flash cooling sterilization machine is installed in a rack.

[0025] One of the technical solutions of the utility model provides a flash cooling sterilization method, which adopts the flash cooling sterilization machine to perform temperature holding sterilization and flash cooling on materials, and the method comprises the following steps:

[0026] The flash cooling sterilization machine sends the materials in the feed tank into the injection pipe through the feed pump, and at the same time, steam is also injected into the injection pipe, the steam and the materials are fully mixed in the mixer, the opening degree of the steam regulating valve is controlled by the temperature sensor at the outlet of the mixer until the materials are heated to the required process temperature, then the materials enter the temperature holding tank through the reversing valve, the materials are sterilized in the temperature holding tank for the required process time, and then are uniformly transported to the flash cooling tank through the discharge regulating valve, because the vacuum environment is prepared in the flash cooling tank through the injection pump, the auxiliary injection pump and the vacuum pump, the cooling temperature of the materials corresponds to the vacuum degree required by the process, the vacuum degree is monitored by the pressure sensor in the flash cooling tank to control the opening degree of the injection pump, the auxiliary injection pump and the vacuum pump as required, the materials after sterilization are rapidly cooled and steam is discharged in the flash cooling tank, and finally the concentration of the materials after sterilization meets the requirement of the process, the risk of dilution of the materials is eliminated, the materials are discharged through the discharge pump, the steam discharged from the flash cooling tank is cooled through the condenser and the auxiliary condenser and then enters the cooling water tank, and finally water is discharged through the water pump.

[0027] Compared with the prior art, the utility model has the following beneficial effects:

[0028] (1) The product quality after sterilization is high, because the utility model adopts steam to directly contact with the materials for sterilization, the steam can completely penetrate any place of the materials, the sterilization is more thorough, the shelf life of the product is longer, the rapid heating and cooling reduce the thermal damage of the product, and the color of the materials is more bright;

[0029] (2) The energy consumption is low and the yield is large, in the utility model, the steam is directly mixed with the materials for sterilization, and the heat in the steam is all absorbed, so that the consumption of the steam is greatly reduced; because the steam is directly mixed for heating, the heating time of the materials is greatly shortened, and the yield of the materials that can be sterilized in a fixed time is larger;

[0030] (3) The utility model is widely used, and has excellent effects on sterilization of tomato sauce and all high-viscosity paste materials, because flash cooling does not reduce the viscosity of the product, the viscosity is strong in maintenance, and the system processing capacity can be adjusted in a wide range;

[0031] (4) Long time aseptic operation, the utility model disc prior to the whole material production season operation not to stop, can long time keep aseptic state;

[0032] (5) Material control, the utility model discloses through various valves respectively adjust the flow and pressure of material and steam, reach the state of control material heat preservation, ensure that material sterilization satisfies the process requirement, through the flow of steam of injection pump adjustment, reach the state of control material flash cooling, ensure that material discharge satisfies the process requirement. BRIEF DESCRIPTION OF DRAWINGS

[0033] Fig. 1 It is the main view structural schematic diagram of the flash cooling sterilization machine in the embodiment of the utility model;

[0034] Fig. 2 It is the three-dimensional structure schematic diagram of the flash cooling sterilization machine in the embodiment of the utility model;

[0035] Fig. 3 It is the flow schematic diagram of the flash cooling sterilization machine in the embodiment of the utility model.

[0036] Marking in the drawing explanation:

[0037] 1-feed tank, 2-feed valve, 3-cleaning pipeline, 4-agitator, 5-feed pump, 6-cleaning pump, 7-injection pipe, 8-mixer, 9-check valve, 10-reversing valve, 11-steam regulating valve, 12-filter, 13-temperature holding tank, 14-tank pressure regulating valve, 15-discharge regulating valve, 16-flash cooling tank, 17-injection pump, 18-discharge pump, 19-condenser, 20-attached condenser, 21-attached injection pump, 22-cooling water tank, 23-water pump, 24-vacuum pump, 25-rack, 26-feed regulating valve, 27-backwater pump. DETAILED DESCRIPTION

[0038] The utility model will be described in detail in combination with specific embodiment. This embodiment is implemented on the premise of the technical scheme of the utility model, gives detailed implementation mode and specific operation process, but the protection scope of the utility model is not limited to the following examples.

[0039] In the description of the utility model, it is necessary to explain that the orientation or positional relation indicated by the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer" and the like is the orientation or positional relation shown based on the drawings, and is only for the convenience of describing the utility model and simplifying the description, and therefore cannot be understood as a limitation on the utility model. In addition, the terms "first", "second", "third" and the like are used to describe common objects, and only mean different instances of the same object, and are not intended to imply that the objects thus described must be in a given order, whether in time, space, sequence or any other manner.

[0040] In the description of the utility model, it is necessary to explain that the terms "installation", "connection", "connection" should be understood broadly unless otherwise specified and limited, for example, it can be fixedly connected, or it can be detachably connected, or integrally connected, it can be mechanically connected, or it can be electrically connected, it can be directly connected, or it can be indirectly connected through an intermediate medium, it can be the communication inside two elements. For ordinary skilled in the art, the specific meaning of the above terms in the utility model can be understood according to the specific circumstances.

[0041] Embodiment:

[0042] A flash cooling sterilization machine, as shown in Figs. 1 to 3 It comprises a feeding system, a steam injection system, a holding system, a flash cooling system and a condensation system, the material supplied through the feeding system and the steam injected through the steam injection system are mixed, then enter the holding system for sterilization, and then enter the flash cooling system for cooling and discharging, and the condensation system assists the flash evaporation system for cooling;

[0043] The feeding system comprises a feeding tank 1 and a feeding pump 5, the feeding pump 5 is arranged on the discharging pipeline of the feeding tank 1, the material of the external incoming material is temporarily stored in the feeding tank 1, and the material is conveyed to the holding system through the feeding pump 5;

[0044] The feeding system further comprises a feeding valve 2, the feeding valve 2 is arranged on the feeding pipeline of the feeding tank 1, and whether the external material is fed is controlled through the feeding valve 2;

[0045] The feeding system further comprises a stirrer 4, the stirrer 4 is arranged in the feeding tank 1, and the temperature and concentration of the material are uniformly mixed through the stirrer 4;

[0046] The flash cooling sterilization machine also comprises a clean-in-place (CIP) cleaning system, the clean-in-place cleaning system comprises a cleaning pipeline 3 and a cleaning pump 6, the feed tank 1 is configured with clean-in-place cleaning liquid, which is delivered to the holding tank 13 and the flash cooling tank 16 through the cleaning pipeline 3, and the cleaning pipeline 3 is provided with the cleaning pump 6, which is used for cooperation delivery, and the cleaning waste liquid in the holding tank 13 is discharged through the discharge pump 18 after entering the flash cooling tank 16;

[0047] The clean-in-place cleaning liquid configured in the feed tank 1 is circulated through the cleaning loop, and is stirred in the feed tank 1 through the stirrer 4 to make the temperature and concentration of the clean-in-place cleaning liquid uniform, and after the feed tank 1 is cleaned, the clean-in-place cleaning liquid is delivered to the holding tank 13 and the flash cooling tank 16 for cleaning;

[0048] The steam injection system comprises an injection pipeline 7, a mixer 8, a reversing valve 10 and a steam regulating valve 11, the injection pipeline 7, the mixer 8 and the reversing valve 10 are sequentially arranged on a discharge pipeline of the feed tank 1, two discharge pipelines of the reversing valve 10 are respectively connected with the feed tank 1 and the holding tank 13, the steam regulating valve 11 is arranged on an air inlet pipeline of the injection pipeline 7, material delivered from the feed tank 1 is injected into steam for heating when passing through the injection pipeline 7, the steam and the material are fully mixed in the mixer 8 to make the temperature stable, the discharge direction of the material is switched through the reversing valve 10, the material delivered from the mixer 8 is circulated back to the feed tank 1 when the temperature of the material is not enough, and the material delivered from the mixer 8 is delivered to the holding tank 13 after the temperature of the material reaches the process requirement, the flow of the steam is adjusted through the steam regulating valve 11, so that the temperature of the material is controlled;

[0049] The steam injection system also comprises a feed regulating valve 26, the feed regulating valve 26 is arranged on a discharge pipeline of the reversing valve 10 connected with the holding tank 13, and the flow of the material is controlled through the feed regulating valve 26;

[0050] The steam injection system also comprises a check valve 9, the steam regulating valve 11 and the check valve 9 are sequentially arranged on the air inlet pipeline of the injection pipeline 7, the feeding direction of the steam is controlled to be the only direction of the air inlet pipeline of the injection pipeline 7 through the check valve 9, so that reverse leakage is prevented;

[0051] The steam injection system also comprises a filter 12, the filter 12 and the steam regulating valve 11 are sequentially arranged on the air inlet pipeline of the injection pipeline 7, impurities in the steam are filtered through the filter 12, so that the flow adjustment of the steam is prevented from being affected, the valve is prevented from being blocked, and the quality of the material is prevented from being disturbed;

[0052] The holding system comprises the holding tank 13 and a tank pressure regulating valve 14, the tank pressure regulating valve 14 is arranged on the holding tank 13, a discharge pipeline of the holding tank 13 is connected with the flash cooling tank 16, the temperature of the material after heating is maintained through the holding tank 13 for sterilization, the holding tank 13 is always maintained in a state of micro-positive pressure through the tank pressure regulating valve 14, so that good sterilization is maintained, air bubbles are not easily generated, and the integrity of the material is beneficially maintained;

[0053] The temperature holding system further comprises a discharge regulating valve 15, which is arranged on the discharge pipeline of the temperature holding tank 13. The liquid level in the temperature holding tank 13 is kept stable through the discharge regulating valve 15, so as to ensure the consistency of the sterilization time of the material;

[0054] The flash cooling system comprises a flash cooling tank 16, a jet pump 17 and a discharge pump 18. The jet pump 17 is arranged on the gas outlet pipeline of the temperature holding tank 13, and the discharge pump 18 is arranged on the discharge pipeline. The steam is delivered to the condenser 19 for cooling through the jet pump 17. The flash cooling tank 16 cooperates with the jet pump 17, the auxiliary jet pump 21 and the vacuum pump 24 to generate negative pressure, so that the steam and the material in the flash cooling tank 16 are rapidly separated. The material after the temperature holding and sterilization is rapidly cooled. The flow of the steam is adjusted through the jet pump 17, so as to control the temperature and the vacuum degree in the flash cooling tank 16. The material is uniformly delivered to the filling machine for discharge and filling through the discharge pump 18;

[0055] The condensing system comprises a condenser 19. The steam separated from the flash cooling tank 16 is cooled through the condenser 19. The steam enters the condenser 19 and is rapidly cooled after being mixed with the cooling water of the cooling tower;

[0056] The condensing system further comprises an auxiliary condenser 20 and an auxiliary jet pump 21. The auxiliary jet pump 21 is arranged on the gas outlet pipeline of the condenser 19. The steam is delivered to the auxiliary condenser 20 for cooling through the auxiliary jet pump 21. A small amount of steam that is not cooled after entering the condenser 19 is secondarily cooled through the auxiliary condenser 20. The flow of the steam is secondarily adjusted through the auxiliary jet pump 21, so as to control the temperature and the vacuum degree in the condenser 19;

[0057] The condensing system further comprises a cooling water tank 22 and a water outlet pump 23. The water outlet pipelines of the condenser 19 and the auxiliary condenser 20 are connected with the cooling water tank 22. The water outlet pipeline of the cooling water tank 22 is provided with the water outlet pump 23. The condensate water of the steam finally falls into the cooling water tank 22 together with the cooling water of the cooling tower. The water is delivered to the cooling tower through the water outlet pump 23;

[0058] The condensing system further comprises a vacuum pump 24. The auxiliary condenser 20 is connected with the vacuum pump 24. The vacuum pump 24 generates negative pressure to keep the low-temperature environment of the auxiliary condenser 20. Since the condensate water of the steam and the cooling water are finally discharged in the form of water, the vacuum pumping can prevent the interference of external air;

[0059] The condensing system further comprises a backwater pump 27. The upper portion of the auxiliary condenser 20 is connected with the cooling water tank 22 through the backwater pump 27. Since the auxiliary condenser 20 has a small volume, the water level in the auxiliary condenser 20 may be too high, which causes the vacuum pump 24 to be sucked in and damaged. The excessive water is discharged through the backwater pump 27;

[0060] The flash cooling sterilization machine is installed in the rack 25.

[0061] A flash cooling sterilization method, using the above flash cooling sterilization machine to carry out holding temperature sterilization and flash cooling of tomato sauce, the specific steps are as follows:

[0062] The flash cooling sterilization machine makes the tomato sauce in the feed tank 1 enter the injection pipe 7 through the feed pump 5, and steam is also injected into the injection pipe 7, the steam and the tomato sauce are fully mixed in the mixer 8, the opening degree of the steam regulating valve 11 is controlled through the temperature sensor at the outlet of the mixer 8 until the tomato sauce is heated to the required process temperature, then enters the holding tank 13 through the reversing valve 10, the tomato sauce is sterilized in the holding tank 13 for the required process time, then is uniformly transported to the flash cooling tank 16 through the discharge regulating valve 15, because the vacuum environment is pre-prepared in the flash cooling tank 16 through the jet pump 17, the auxiliary jet pump 21 and the vacuum pump 24, the required process preset vacuum degree corresponds to the cooling temperature of the tomato sauce, such as-0.086MPa corresponding to 40℃, at the same time, the vacuum degree is monitored through the pressure sensor in the flash cooling tank 16 to control the opening degree of the jet pump 17, the auxiliary jet pump 21 and the vacuum pump 24 as required, the sterilized tomato sauce is rapidly cooled in the flash cooling tank 16 and steam is discharged, finally realizes that the concentration of the sterilized tomato sauce meets the required process, eliminates the risk of dilution of the tomato sauce, and the tomato sauce is discharged through the discharge pump 18, the steam discharged from the flash cooling tank 16 is cooled through the condenser 19 and the auxiliary condenser 20 and then enters the cooling water tank 22, and finally the water is discharged through the water pump 23.

[0063] The above description of the embodiments is for the convenience of those skilled in the art to understand and use the utility model. Those skilled in the art can easily make various modifications to these embodiments, and apply the general principles described herein to other embodiments without creative labor. Therefore, the utility model is not limited to the above embodiments, and those skilled in the art can make improvements and modifications within the scope of the utility model without departing from the scope of the utility model.

Claims

1. A flash pasteurizer characterized by comprising: The flash cooling sterilization machine comprises a feeding system, a steam injection system, a temperature holding system, a flash cooling system and a condensing system, the material supplied by the feeding system and the steam injected by the steam injection system are mixed, sterilized in the temperature holding system first, and then cooled in the flash cooling system and discharged, and the condensing system assists the flash cooling system in cooling; The feeding system comprises a feeding tank (1) and a feeding pump (5), and the feeding pump (5) is arranged on the discharge pipeline of the feeding tank (1). The steam injection system comprises an injection pipe (7), a mixer (8), a reversing valve (10) and a steam regulating valve (11), the injection pipe (7), the mixer (8) and the reversing valve (10) are sequentially arranged on the discharge pipeline of the feeding tank (1), the discharge pipelines of the reversing valve (10) are connected with the feeding tank (1) and the temperature holding tank (13) respectively, and the steam regulating valve (11) is arranged on the air inlet pipeline of the injection pipe (7). The temperature holding system comprises a temperature holding tank (13) and a tank pressure adjusting valve (14), the tank pressure adjusting valve (14) is arranged on the temperature holding tank (13), and the discharge pipeline of the temperature holding tank (13) is connected with the flash cooling tank (16). The flash cooling system comprises a flash cooling tank (16), a jet pump (17) and a discharge pump (18), the jet pump (17) is arranged on the air outlet pipeline of the temperature holding tank (13), the discharge pump (18) is arranged on the discharge pipeline, and the jet pump (17) is used for conveying steam to the condenser (19) for cooling. The condensing system comprises a condenser (19).

2. The flash pasteurizer of claim 1, wherein The feeding system further comprises a stirrer (4), and the stirrer (4) is arranged in the feeding tank (1).

3. The flash pasteurizer of claim 1, wherein The steam injection system further comprises a feeding adjusting valve (26), and the feeding adjusting valve (26) is arranged on the discharge pipeline of the reversing valve (10) connected with the temperature holding tank (13).

4. The flash pasteurizer of claim 1, wherein The steam injection system further comprises a check valve (9), and the steam regulating valve (11) and the check valve (9) are sequentially arranged on the air inlet pipeline of the injection pipe (7).

5. The flash pasteurizer of claim 1, wherein The steam injection system further comprises a filter (12), and the filter (12) and the steam regulating valve (11) are sequentially arranged on the air inlet pipeline of the injection pipe (7).

6. The flash pasteurizer of claim 1, wherein The temperature holding system further comprises a discharge adjusting valve (15), and the discharge adjusting valve (15) is arranged on the discharge pipeline of the temperature holding tank (13).

7. The flash pasteurizer of claim 1, wherein The condensing system further comprises an auxiliary condenser (20) and an auxiliary jet pump (21), the auxiliary jet pump (21) is arranged on the air outlet pipeline of the condenser (19), and the auxiliary jet pump (21) is used for conveying steam to the auxiliary condenser (20) for cooling.

8. The flash pasteurizer of claim 7, wherein, The condensing system further comprises a cooling water tank (22) and a water outlet pump (23), the water outlet pipelines of the condenser (19) and the auxiliary condenser (20) are connected with the cooling water tank (22), and the water outlet pipeline of the cooling water tank (22) is provided with the water outlet pump (23).

9. The flash pasteurizer of claim 7, wherein The condensing system further comprises a vacuum pump (24), and the auxiliary condenser (20) is connected with the vacuum pump (24).

10. The flash pasteurizer of claim 1, wherein The flash cooling sterilization machine further comprises an in-situ cleaning system, which comprises a cleaning pipeline (3) and a cleaning pump (6), the feed tank (1) is configured with in-situ cleaning liquid, which is delivered to the holding tank (13) and the flash cooling tank (16) for cleaning through the cleaning pipeline (3), and the cleaning pipeline (3) is provided with the cleaning pump (6).

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