JP4730251B2 - Fluid heat sterilizer - Google Patents

Description

  The present invention relates to an apparatus for heat sterilizing a fluid such as a food or drink.

  In order to preserve fluids such as soups, sauces and juices for a long period of time, they must be preliminarily heated and sterilized. Examples of sterilization methods include retort sterilization and UHT (Ultra High Temperature) sterilization.

  The retort sterilization method is a method in which a fluid such as soup is put in an airtight container such as a can or pouch and sealed, and the whole container is sterilized in a retort kettle under high temperature and high pressure. Since this sterilization method is a batch process, even a small volume fluid can be processed relatively easily.

  The UHT sterilization method is a method of sterilizing a fluid while sending it from a tank into a transfer pipe by a pump (see, for example, Patent Documents 1 and 2). Since this sterilization method is a continuous process, the amount of heat necessary for sterilization can be added to the fluid, and thus the fluid can be sterilized with high quality.

  According to this UHT sterilization method, since the fluid is sent by the transfer pipe, there is a problem that the fluid remains in the transfer pipe after the transfer is finished. Conventionally, a pig is used to collect such a residue. (For example, refer to Patent Document 3).

JP-A-8-322463 JP 11-239469 A Japanese Patent Laid-Open No. 9-192620

  The retort sterilization method is generally overheated compared to the UHT sterilization method because the center of the fluid sealed in an airtight container such as a can or pouch must be heated for a long time until it reaches a predetermined temperature. There is a tendency that the quality of the fluid tends to be lowered because the flavor, texture, and nutrients are lowered or the color is changed to brown or the like.

  On the other hand, the UHT sterilization method performs heat sterilization and cooling while continuously feeding the fluid into the transfer pipe by a pump or the like, so it is necessary to constantly flow the fluid over the entire volume of the transfer pipe, and therefore the flow with a small capacity. Not suitable for the body. In addition, since the UHT sterilization method sends the fluid through the transfer pipe, there is a problem that the fluid tends to adhere to the inner surface of the transfer pipe when the transfer is completed.

  It is an object of the present invention to provide a fluid heating sterilizer that eliminates such problems.

  In order to solve the above problems, the present invention employs the following configuration.

That is, the invention according to claim 1 sends the fluid (A) through the transfer pipe (3) from the first storage tank (1) to the second storage tank (2), and heat sterilization at a predetermined location on the upstream side. In the fluid heat sterilization apparatus in which the fluid (A) is heat sterilized by the means (9) and the fluid (A) is cooled by the cooling means (19) at a predetermined downstream position. The storage tank (1) is provided with the heat sterilization means (9), and an on-off valve is provided on the upstream side of the transfer pipe leading to the first storage tank and on the downstream side of the second storage tank. The cooling means (19) is provided at an intermediate portion of the pipe (3) sandwiched between the on-off valves, and the fluid (A) is placed in the first storage tank (1) by the heat sterilization means (9). while heating to a predetermined temperature, and, above the pneumatic supply means (18) Was sterilized while pressing the pressure sterile supplied to the first storage tank (1), by opening the on-off valve of the upstream side, the pressure supply means (18) to said first storage tank (1) With the supplied aseptic compressed air , the fluid in the first storage tank is sent to the closed on-off valve side on the downstream side and stored in the intermediate portion of the transfer pipe (3), and the fluid in the intermediate portion Is cooled by the cooling means (19), and then the downstream on-off valve is opened to send the cooled fluid to the second storage tank (2).

The invention according to claim 2 is the fluid heat sterilizer according to claim 1 , wherein the downstream side of the transfer pipe (3) is shielded by the on-off valve (10), and the compressed air supply means (18) from the upstream side. Aseptic pressure air is supplied to the fluid (A), and the fluid (A) is cooled while being held at the position of the cooling means (19) of the transfer pipe (3).

The invention according to claim 3 is the fluid heat sterilization apparatus according to claim 1, wherein the pig (4) movably inserted into the transfer pipe (3) and the cooling means in the transfer pipe (3) are provided. The waiting chamber (5) of the pig (4) provided upstream from (19) and the closing chamber (5) of the pig (4) provided downstream from the cooling means (19) in the transfer pipe (3) 6).

According to the present invention, to prevent overheating of the flow body (A), flavor, texture, it is possible to sterilize the fluid (A) without causing the degradation or discoloration of the nutrient, also, the fluid ( Since it is not necessary to carry out heat sterilization while continuously flowing A) through the transfer pipe (3), it can be sterilized as long as the volume of the transfer pipe (3), and therefore has a small capacity. Even (A) can be sterilized.

  Moreover, according to this invention, the pig (4) movably inserted in the transfer pipe (3) and the pig (4) provided on the upstream side of the cooling means (19) in the transfer pipe (3). The waiting chamber (5) and the closing chamber (6) of the pig (4) provided downstream of the cooling means (19) in the transfer pipe (3) are provided. Even if the fluid (A) adheres and remains on the inner surface of the transfer tube (3) by cooling with the transfer tube (3), the remaining fluid (A) can be properly recovered.

  Next, embodiments of the present invention will be described with reference to the drawings.

  As shown in FIG. 1, this fluid heat sterilizer sends a fluid through a transfer pipe 3 from a first storage tank 1 to a second storage tank 2, and the fluid is sterilized by a heat sterilization means at a predetermined location on the upstream side. The fluid is sterilized by heating, and the fluid is cooled by cooling means at a predetermined location on the downstream side.

  Although the fluid sent from the 1st storage tank 1 to the 2nd storage tank 2 via the transfer pipe 3 is soup, a sauce, juice, etc., it is not restricted to food and drink.

  The first storage tank 1 is a large-capacity sealed container for storing a fluid. As shown in FIG. 5, the first storage tank 1 has a lid 1a that can be opened and closed. The lid 1a is opened to allow the fluid A to flow into the tank body.

  The second storage tank 2 has the same size as the first storage tank 1, and all of the fluid stored in the first storage tank 1 can flow in through the transfer pipe 3. Although not shown, the second storage tank 2 is connected to a conduit for sending the fluid to an aseptic filling machine that fills and packs the fluid in bags, containers, and the like.

  The transfer pipe 3 extends from the first storage tank 1 to the second storage tank 2, and the first storage tank 1 side, that is, the upstream delivery section 3a, and the second storage tank 2 side, that is, the downstream side inflow. It is comprised by the part 3c and the intermediate part 3b between the sending part 3a and the inflow part 3c.

  The delivery part 3a of the transfer pipe 3 is provided with on-off valves 7 and 8 which are electromagnetic valves, respectively, near the first storage tank 1 and near the intermediate part 3b. The inflow portion 3c is also provided with an on-off valve 10 that is an electromagnetic valve.

  This fluid heating sterilization apparatus is provided with steam sterilization means for sterilizing the inside of the apparatus before supplying the fluid A. That is, as shown in FIG. 1, a sterilization steam supply pipe 9 is connected to the first storage tank 1. A sterilizing steam supply pipe 14 is also connected to the upstream side of the intermediate portion 3 b of the transfer pipe 3. The second storage tank 2 is connected to an exhaust pipe 11 for discharging steam injected into the first storage tank 1 and the transfer pipe 3 from the sterilizing steam supply pipe 9. A steam exhaust pipe 16 is also connected to the upstream side of the intermediate portion 3 b of the transfer pipe 3.

  Initially, the first and second storage tanks 1 and 2 are empty, and when steam is injected into the first storage tank 1 from the sterilizing steam supply pipe 9, the steam is stored in the first storage tank. 1, the inside of the transfer pipe 3, the second storage tank 2 and the like is sterilized and then discharged from the exhaust pipe 11. The sterilizing vapor is, for example, about 130 ° C. at the time of injection, and is injected for about 30 minutes.

  In order to supply the fluid A from the first storage tank 1 to the second storage tank 2 in this fluid heating sterilization device, a positive pressure is generated in the fluid heating sterilization device in order to drive a pig 4 described later. In order to maintain the pressure, a compressed air supply means is provided. That is, as shown in FIG. 1, the compressed air supply pipes 18 and 20 are connected to the first storage tank 1 and the second storage tank 2, respectively. A compressed air supply pipe 15 is also connected to the upstream side of the intermediate portion 3 b of the transfer pipe 3. A compressor, a filter, etc. (not shown) are provided on the upstream side of the compressed air supply pipes 15, 18, 20, and sterilized compressed air is supplied from the compressed air supply pipes 15, 18 into the fluid heating sterilizer. .

  As shown in FIG. 7, the fluid A in the first storage tank 1 is sent into the transfer pipe 3 by aseptic pressurized air supplied from the compressed air supply pipe 18 into the first storage tank 1. It is. Further, as shown in FIG. 10, the pig 4 is moved downstream in the intermediate part 3 b by the sterile pressurized air supplied from the compressed air supply pipe 15 into the intermediate part 3 b of the transfer pipe 3. The fluid A remaining in the intermediate part 3b is scraped off and sent to the second storage tank 2. Further, by supplying the fluid heating sterilizer from the compressed air supply pipes 18, 15 and 20, the inside of the apparatus is maintained at a positive pressure.

  The first storage tank 1 is provided with heat sterilization means for the fluid A. As the heat sterilization means, the sterilization steam supply pipe 9 and the compressed air supply pipe 18 connected to the first storage tank 1 shown in FIG. 1 can be used. By supplying pressurized air from the compressed air supply pipe 18 into the first storage tank 1 and injecting steam into the first storage tank 1 from the supply pipe 9 for the sterilizing steam while pressurizing the fluid A, The fluid A stored in the storage tank 1 can be sterilized by heating under high temperature and high pressure.

  The heat sterilization of the fluid A is not only by blowing steam directly into the fluid A, but also covering the wall of the first storage tank 1 with a jacket, supplying the steam into the jacket, and transferring the fluid A by heat transfer. It can also be performed by heating. In addition, by directly flowing electricity through the fluid A, the fluid A can be heated by Joule heat generated by the electrical resistance of the fluid A itself. Even when these means are used, the compressed air can be sent from the compressed air supply pipe 18 and heated under a pressurized condition.

  The transfer pipe 3 is provided with a cooling means for cooling the heat-sterilized fluid A. As shown in FIG. 1, the cooling means includes a cooling jacket 19 that covers the intermediate portion 3 b of the transfer pipe 3. A cooling water supply pipe 19 a and a drain pipe 19 b are connected to the cooling jacket 19. As shown in FIG. 8, the cooling water is supplied from the water supply pipe 19 a into the cooling jacket 19 and discharged from the drain pipe 19 b, so that the fluid A introduced into the intermediate portion 3 b of the transfer pipe 3 is, for example, It is cooled to 30 ° C. to 40 ° C., which is a temperature that does not hinder subsequent packaging. Further, as shown in FIG. 8, when the fluid A is cooled by the cooling means, the downstream side of the transfer pipe 3 is preferably shielded by the on-off valve 10, and sterile compressed air is supplied from the upstream side by the compressed air supply pipe 18. As a result, the fluid A is held in a stationary state in the intermediate portion 3 b of the transfer pipe 3. Thus, by dividing the cooling part from the heating part, the fluid A is quickly cooled to the appropriate temperature.

  As shown in FIG. 9, the fluid A cooled in the intermediate portion 3 b of the transfer pipe 3 is sent to the second storage tank 2, but as a result of cooling the fluid A, the viscosity increases and the transfer pipe 3 It becomes easy to adhere and remain as a thick layer on the inner surface of the intermediate portion 3b. In order to collect the remaining fluid A, the pig 4 is movably provided in the intermediate portion 3b of the transfer pipe 3, as shown in FIGS. Further, the waiting chamber 5 of the pig 4 is provided upstream of the cooling jacket 19 in the intermediate portion 3 b of the transfer pipe 3, and the closing chamber 6 of the pig 4 is provided downstream of the cooling jacket 19.

  The intermediate portion 3b of the transfer pipe 3 may be bent and extended at a desired location from the upstream side to the downstream side. Preferably, as shown in FIG. It is configured as a straight pipe, that is, a pipe extending straight in between. Thereby, the structure of this fluid heating sterilization apparatus is simplified and space saving is also attained.

  As shown in FIG. 3, the pig 4 is formed as a substantially cylindrical body by using a soft material and an elastic material such as resin, rubber, and the like. The outer diameter of the pig 4 is slightly smaller than the inner diameter of the transfer pipe 3 so that the fluid A remaining on the inner surface of the transfer pipe 3 can be scraped off while moving in the transfer pipe 3. It is formed. An O-ring 12 is fitted around the front part of the pig 4, that is, around the front part of the transfer pipe 3 that faces the direction in which the fluid A flows. The fluid A attached to the inner surface of the intermediate portion 3b of the transfer pipe 3 by the O-ring 12 is scraped off more effectively.

  In addition, an annular groove 4 a into which a later-described restraining tool 13 enters and disengages is provided at the center of the pig 4. When the restraining tool 13 enters the annular groove 4a, the pig 4 is restrained from moving from a fixed position in the standby chamber 5, and when it moves out of the annular groove 4a, the pig 4 is released and can move within the transfer pipe 3. Become.

  As shown in FIG. 2, the waiting room 5 includes an extension pipe 5 a having substantially the same thickness as the intermediate part 3 b of the transfer pipe 3 into which the front part of the pig 4 is inserted, and a transfer pipe 3 into which the rear part of the pig 4 is inserted. It is comprised with the thicker expansion tube 5b. The extension pipe 5a branches off from the vicinity of the boundary between the intermediate part 3b of the transfer pipe 3 and the delivery part 3a so as to protrude in the extension direction of the intermediate part 3b. The expansion pipe 5 b has an inner diameter larger than the diameter of the pig 4, and forms an empty space between the expansion pipe 5 b and the outer peripheral surface of the pig 4. A conical tube 5c for gradually changing the inner diameter is provided between the expansion tube 5b and the extension tube 5a as necessary.

  The steam supply pipe 14 and the compressed air supply pipe 15 described above are connected to the expansion pipe 5b. A steam exhaust pipe 16 is also connected. As shown in FIG. 4, when sterilization steam is injected into the expansion pipe 5 b from the steam supply pipe 14, the steam heat-sterilizes the surface of the pig 4. This vapor is, for example, about 130 ° C. and is injected for about 30 minutes. Since the front portion of the pig 4 is fitted in the extension pipe 5a during standby in the standby chamber 5, the pig 4 is held suspended in the extension pipe 5b, and the vapor contacts the substantially entire surface. Therefore, the surface of the pig 4 is appropriately sterilized. After the sterilization of the pig 4, the steam is discharged to the outside from the exhaust pipe 16 connected to the expansion pipe 5 b. Further, when the supply of the sterilizing steam is stopped and the compressed air is injected into the expansion pipe 5b from the supply pipe 15 as shown in FIG. 10, the pig 4 comes out of the standby chamber 5 into the transfer pipe 3 by the pressure. The inside of the transfer pipe 3 moves downstream, and reaches the stop chamber 6 and stops as shown in FIG. The pressure of the compressed air for moving the pig 4 is, for example, about 0.3 to 0.4 MPa.

  As shown in FIG. 2, the waiting chamber 5 is provided with a restraining tool 13 that penetrates the through hole 17 formed in the pipe wall of the expansion pipe 5 b into the pipe. Specifically, the restraining tool 13 is a round bar, and when the operator inserts the restraining tool 13 into the standby chamber 5 from the through-hole 17, the tip of the restraining tool 13 bites into the annular groove 4 a of the pig 4. 4 is restrained in the waiting room 5. Accordingly, when supplying the sterilizing steam from the sterilizing steam supply pipe 14, the pig 4 stays at a fixed position in the standby chamber 5 against the steam pressure. Further, when the operator pulls the restraining tool 13 to the outside of the expansion tube 5 b to disengage the tip of the restraining tool 13 from the annular groove 4 a of the pig 4, the pig 4 is released from the restraint in the standby chamber 5. Thus, when pressurized air is supplied from the compressed air supply pipe 15, the pig 4 is pushed out from the standby chamber 5 into the transfer pipe 3.

  The closing chamber 6 is formed by branching the intermediate portion 3b from the vicinity of the boundary between the intermediate portion 3b of the transfer pipe 3 and the inflow portion 3c. The end of this branching portion is closed by an end plate 6a, and the pig 4 hits the end plate 6a and stops. An inflow portion 3 c extends from the upstream end of the closing chamber 6 toward the second storage tank 2. When the pig 4 moves from the standby chamber 5 to the closing chamber 6, the fluid A attached to and remaining on the inner wall surface of the transfer pipe 3 is scraped off by the pig 4, and the second storage tank 2 from the inflow portion 3 c. It collects by flowing in.

  Next, the operation of the fluid heat sterilizer will be described.

  (1) Initially, the first and second storage tanks 1 and 2 are emptied as shown in FIG. As shown in FIG. 2, the restraint 13 is inserted into the standby chamber 5 from the through hole 17 of the expansion pipe 5 b by the operator, and the tip of the restraint 13 is inserted into the annular groove 4 a of the pig 4. Thereby, the pig 4 is restrained in the waiting room 5.

(2) As shown in FIG. 4, the on-off valves 7, 8, 10 on the transfer pipe 3 are opened, and sterilizing steam is injected into the first storage tank 1 from the sterilizing steam supply pipe 9. . This steam flows from the first storage tank 1 into the transfer pipe 3 and flows into the second storage tank 2 through the delivery part 3a, the intermediate part 3b and the inflow part 3c, and sterilizes the inside thereof. After that, the exhaust pipe 11 is discharged out of the second storage tank 2.
As shown in FIG. 2, the sterilizing vapor is also injected from the sterilizing vapor supply pipe 14 into the standby chamber 5, that is, inside the extension pipe 5b and the extension pipe 5a. The front part of the pig 4 is fitted in the extension pipe 5a in the standby chamber 5, and is held suspended in the extension pipe 5b. Thereby, the vapor | steam inject | poured in the expansion pipe | tube 5b sterilizes the substantially whole surface of the pig 4. FIG. After the sterilization of the pig 4, the steam is discharged to the outside from the exhaust pipe 16 connected to the expansion pipe 5 b.
Thus, when the inside of the fluid heating sterilizer is sterilized, valves (not shown) provided in various pipes such as the sterilizing steam supply pipes 9 and 14 and the exhaust pipes 11 and 16 are closed, and the system is sealed. The

(3) As shown in FIG. 5, the on-off valve 7 on the most upstream side of the transfer pipe 3 is closed, and aseptic compressed air is supplied into the transfer pipe 3 from various compressed air supply pipes 15 and 20. Thereby, the inside of the fluid heating sterilizer is kept at a positive pressure except for the first storage tank 1, and fungi are prevented from entering the fluid heating sterilizer.
Therefore, as shown in FIG. 5, the lid 1a of the first storage tank 1 is opened, and a desired amount of fluid A such as soup, sauce and juice is aseptically filled in the first storage tank 1, As shown in FIG. 6, the lid 1a is put on again and the first storage tank 1 is sealed.

  (4) As shown in FIG. 6, pressurized air is supplied from the compressed air supply pipe 18 into the first storage tank 1, and sterilizing steam is injected from the sterilizing steam supply pipe 9. Thereby, the fluid A in the 1st storage tank 1 is heat-sterilized under high temperature and a high pressure. Thus, the fluid A is heated in a state where it is stored in a storage tank of a constant volume and without passing through a packaging body such as a bag such as retort sterilization. Deterioration is prevented.

  (5) When the fluid A in the first storage tank 1 is heated to a predetermined temperature and sterilized, the supply of steam into the first storage tank 1 is stopped as shown in FIG. The on-off valve 7 on the most upstream side of the transfer pipe 3 is opened, and the on-off valve 10 on the most downstream side is closed. As a result, the fluid A in the first storage tank 1 quickly flows into the transfer pipe 3 by the pressurized air supplied from the compressed air supply pipe 18 and accumulates in the intermediate portion 3 b of the transfer pipe 3. Since the fluid A is sent by compressed air without using a pump, the fluid A flows smoothly in the transfer pipe 3.

(6) As shown in FIG. 8, cooling water is supplied into the cooling jacket 19, and the fluid A accumulated in the intermediate portion 3 b of the transfer pipe 3 is cooled. Since the fluid A quickly flows into the transfer pipe 3 from the first storage tank 1 and is immediately cooled, it is not heated excessively, and the quality of flavor, texture, nutrients, etc. is maintained at a high level. No discoloration will occur.
When the fluid A is cooled, aseptic compressed air is supplied from the compressed air supply pipes 18 and 15 to the transfer pipe 3 side, and the fluid A is properly held in the intermediate portion 3 b of the transfer pipe 3 by the pressure. Further, the inflow of the fluid A into the pig waiting chamber 5 is prevented. Further, aseptic compressed air is supplied from the compressed air supply pipe 20 into the second storage tank 2, and the second storage tank 2 is maintained at a positive pressure.

  (7) As shown in FIG. 9, the supply of pressurized air from the pressurized air supply pipe 20 to the second storage tank 2 is shut off, and the on-off valve 10 on the most downstream side of the transfer pipe 3 is opened. Thereby, the fluid A cooled in the intermediate part 3 b of the transfer pipe 3 flows into the second storage tank 2.

  (8) When the cooled fluid A flows into the second storage tank 2, as shown in FIG. 10, the operator pulls the restraining tool 13 to the outside of the expansion pipe 5b. The restraining tool 13 may be extracted from the through hole 17 of the expansion pipe 5 b or may remain in the through hole 17. If it is left in the through hole 17, leakage of compressed air can be prevented. Thus, when the restraint 13 is pulled out of the pipe and the tip of the restraint 13 is detached from the annular groove 4 a of the pig 4, the pig 4 is released from the restraint in the standby chamber 5.

(9) As shown in FIG. 10, when the on-off valve 8 provided at the location where the inflow portion 3a of the transfer pipe 3 joins the intermediate portion 3b is closed, the pig 4 is moved by the pressurized air supplied into the standby chamber 5. It is pushed out from the waiting chamber 5 into the intermediate part 3b of the transfer pipe 3, and moves in the intermediate part 3b to the downstream side.
The pig 4 moves in the intermediate portion 3b of the transfer pipe 3, scrapes off the remaining fluid A attached to the inner wall surface of the transfer pipe 3, and removes the scraped fluid A from the inflow portion 3c to the second storage tank. Push into 2.

  (10) Eventually, the pig 4 enters the closing chamber 6 as shown in FIG. 11, and hits the end plate 6a and stops. Thereby, the recovery of all the fluid A remaining in the intermediate portion 3b of the transfer pipe 3 is completed, and the transfer of the fluid A from the first storage tank 1 to the second storage tank 2 is completed.

  (11) A conduit (not shown) is connected to the second storage tank 2, and the fluid A in the second storage tank 2 is sent from this conduit to an aseptic filling machine (not shown) and filled into bags, containers, and the like. Packaged.

(12) The pig 4 that has entered the closing chamber 6 is pushed back into the waiting chamber 5 by inserting an operating rod by an operator through a hole that has been previously drilled in the end plate 6a and closed with a plug, for example. Alternatively, it is possible to inject compressed air from the hole of the end plate 6a and push it back.
As shown in FIGS. 1 and 2, the pig 4 that has returned to the waiting chamber 5 is again restrained in the waiting chamber 5 by the restraining tool 13.

  Although the present invention is configured as described above, the present invention is not limited to the above-described embodiment, and various modifications can be made within the scope of the gist of the present invention.

It is a conceptual diagram of the fluid heating sterilizer which concerns on this invention. FIG. 2 is an enlarged view of a place where a pig waits in FIG. 1. It is a perspective view of an example of a pig. It is explanatory drawing which shows the process of disinfecting the inside of a fluid heating sterilizer. It is explanatory drawing which shows the process of supplying a fluid into a fluid heating sterilizer. It is explanatory drawing which shows the process of heat-sterilizing a fluid within a fluid-heat-sterilization apparatus. It is explanatory drawing which shows the process of sending out a fluid from a 1st storage tank in a transfer pipe | tube in a fluid heating sterilizer. It is explanatory drawing which shows the process of cooling a fluid within a fluid heating sterilizer. It is explanatory drawing which shows the process of sending out a fluid from the inside of a transfer pipe to a 2nd storage tank within a fluid heating sterilizer. It is explanatory drawing which shows the process of moving a pig to the downstream in a transfer pipe within a fluid heating sterilizer. It is explanatory drawing which shows the state which the pig | pig reached | attained a deadline chamber and the collection | recovery of the fluid was completed within the fluid heat sterilizer.

DESCRIPTION OF SYMBOLS A ... Fluid 1 ... 1st storage tank 2 ... 2nd storage tank 3 ... Transfer pipe 4 ... Pig 5 ... Standby chamber 6 ... Closure chamber 9 ... Steam supply pipe 10 ... On-off valve 18 ... Pressure air supply pipe 19 ... Cooling Jacket

Claims (3)

The fluid is sent from the first storage tank to the second storage tank through the transfer pipe, the fluid is heat sterilized by the heat sterilization means at a predetermined location on the upstream side, and the fluid is cooled by the cooling means at a predetermined location on the downstream side. In the fluid heat sterilization apparatus to be cooled, the heat sterilization means is provided in the first storage tank, and the upstream side of the transfer pipe that leads to the first storage tank and the downstream that leads to the second storage tank. An opening / closing valve is provided on each side, the cooling means is provided in an intermediate portion sandwiched between the both opening / closing valves of the transfer pipe, and the fluid is heated to a predetermined temperature by the heating sterilization means in the first storage tank. In addition , after sterilization while being pressurized with aseptic compressed air supplied from the compressed air supply means to the first storage tank, the upstream opening / closing valve is opened, and the first storage tank is opened from the compressed air supply means. In The pressure of the sterile to be fed, the fluid of the first reservoir tank sent to off valve side is closed in the downstream reservoir into the middle portion of the transfer tube, the cooling fluid in the intermediate portion A fluid heating sterilizer characterized in that the fluid is cooled by means and then the downstream on-off valve is opened to send the cooled fluid to the second storage tank. The fluid heating sterilization apparatus according to claim 1 , wherein the downstream side of the transfer pipe is shielded by an on-off valve, and sterile compressed air is supplied from the upstream side by the compressed air supply means, so that the fluid is positioned at the cooling means of the transfer pipe. A fluid heating sterilizer characterized in that it is cooled while being held in place.   In the fluid heat sterilization apparatus according to claim 1, a pig inserted movably in the transfer pipe, a waiting room for a pig provided upstream of the cooling means in the transfer pipe, and a cooling means in the transfer pipe A fluid heating sterilizer comprising a pig closing chamber provided on the downstream side.

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