KR20060051071A - Heat exchanger - Google Patents

Abstract

A heat exchanger configured to be capable of smoothly discharging a heat exchanged drain and to adjust a pressure loss of an apparatus when heating or cooling a liquid is provided.

When the medium supply pipe 12 and the drain discharge pipe 22 are connected to the coat pipe 50 of the coat tank 10 for heat exchange, and the drain in the drain recovery tank 20 reaches the set level, the drain recovery tank 20 ) By opening the solenoid valve 19A of the branch pipe 19 for supplying the medium, the medium is sent to the drain recovery tank 20 to discharge the drain. The pressure loss is adjusted in accordance with the liquid to be heat exchanged by changing or replacing the attachment angles of the cover plates 60 and 70 attached to both ends of the outer tube 50.

Metal pipes, fruit, check valves, recovery tanks, level sensors for drain discharge, steam feed pipes, drains, aeration valves, steam valves, heat exchangers.

Description

Heat exchanger {HEAT EXCHANGER}

BRIEF DESCRIPTION OF THE DRAWINGS It is the block diagram which shows an example of the automatic packaging system which implemented the heat exchanger which concerns on this invention.

2 is a configuration diagram illustrating the entirety of the shell and tube heat exchanger according to the present invention.

3 is a partial cross-sectional side view of the coat tank of the present invention.

4 is an enlarged left side view of the coat tank illustrated in FIG. 3.

FIG. 5 is an enlarged right side view of the coat tank illustrated in FIG. 3.

6 is a perspective view of one cover plate used in the present invention.

7 is a perspective view of the other cover plate used in the present invention.

8 is an enlarged cross-sectional view taken along line AA of the coat tank shown in FIG. 3, (b) is a cross-sectional view taken along line BB of (a), and (c) is a cross-sectional view taken along line CC of (b). .

Fig. 9 illustrates the change of heat exchange due to the replacement of the cover plate, where (a) is an explanatory diagram in the case of 40 one-pass, (b) is an explanatory diagram in the case of 40 two-pass, and (c) is a three-pass 40 Explanatory drawing of a case, (d) is explanatory drawing of the case of 40 four-pass.

10 is a cross-sectional view illustrating the configuration of the mixing pipe used in the present invention.

[Description of the code]

Z heat exchanger 10 coat tank

12 Medium supply pipe 19 First branch pipe

19A, 25 Solenoid Valve 20 Drain Recovery Tank

21 Level sensor for drain drain 22 Drain drain pipe

50 coat pipe 50P metal pipe

50X one storage chamber 50Y the other storage chamber

50A, 50B Storage Room Entrance 54 Media Entrance

55 Drain outlet 60, 70 cover plate

61H, 65 Inlet 62H, 75 Outlet

63, 76 central partition wall 64, 72 partition partition wall

V mixing pipe

TECHNICAL FIELD This invention relates to the heat exchanger suitable for use when heat-processing and cooling a liquid seasoning food etc. efficiently in a short time.

Conventionally, when it is going to heat-process and cool-process foods, such as liquid seasonings in a short time and efficiently, for example, as described in patent document 1, a metal pipe is heated like hot water and saturated steam. Alternatively, a heat exchanger configured to be piped in an atmosphere filled with a coolant such as cold water and to perform heat exchange between the liquid flowing in the metal pipe and the fruit or the coolant is widely used.

[Patent Document 1] Japanese Patent Application Laid-Open No. 2002-181490

When heating a liquid using the heat exchanger of the said structure, steam and hot water are used as a fruit, but since steam heating has a high temperature and a quantity of heat compared with hot water heating, and since the supply means is not easy, many heating apparatuses are conventionally used. It is used as a heat source of. However, when the steam supply is insufficient due to low temperature heating or overload due to the use of the apparatus, since the steam temperature naturally becomes 100 ° C or lower and becomes a negative pressure (below atmospheric pressure), the inside of the apparatus becomes a vacuum state and heat exchanges. There was a problem that the drain could not be discharged.

Moreover, when heating or cooling liquid seasonings or the like, the pressure loss of the device due to the viscosity of the liquid and the flow rate (flow rate) becomes a big problem, but there are also problems such as component change due to high pressure and performance of the liquid pump. It is said that 0.8 Mpa or less is suitable, and there exists a problem that the required flow volume (flow velocity) cannot be obtained, and especially in the multi-pipe type (multistage) heat exchanger which provided several outer heat pipes for heat exchange, respectively, The problem tends to be remarkable, and in the case of the multi-tube heat exchanger, there is a problem in that the flow velocity of the liquid cannot be constantly adjusted.

Accordingly, the technical problem of the present invention is to smoothly discharge the heat exchanged drain, to control the pressure loss of the device when heating or cooling the liquid, and also to provide a flow rate of the liquid in the multi-tube heat exchanger. It is to provide a heat exchanger configured to adjust the constant.

(1) In order to solve the above technical problem, the heat exchanger according to claim 1 of the present invention arranges a metal pipe in an atmosphere filled with a fruit, and performs heat exchange between the liquid flowing through the metal pipe and the fruit. Steam is used as the heat exchanger, and the steam supply from the steam supply is performed through the process control valve for any set temperature of the liquid to be heated on the secondary side, while between the heat exchanger and the drain recovery tank. A vent pipe and a drain recovery pipe are installed in the exhaust pipe, an automatic valve for ventilation, which is opened according to the start of the steam supply, is installed in the vent pipe, a check valve is installed in the drain recovery pipe, and the amount of the drain is recovered in the drain recovery tank. Drain discharge level sensor that senses and enables drain discharge by random amount cycle A steam transfer pipe is provided for allowing steam from a steam supply to be transferred through an automatic valve for steam, and upon detection of the drain discharge sensor, the automatic valve for ventilation is closed and the automatic valve for steam is closed. It is characterized in that the opening is enabled to discharge the drain by the transfer of steam, and after the discharge is completed, the ventilation automatic valve is opened and the steam automatic valve is closed.

(2) The heat exchanger according to claim 2 of the present invention is a heat exchanger in which a metal pipe is arranged in an atmosphere filled with a fruit or a refrigerant, and heat exchanges between the liquid flowing in the metal pipe and the fruit or the refrigerant. A support plate for supporting both ends of each metal pipe is provided inside the both ends of the fruit or refrigerant coat tank in which a plurality of metal pipes are piped therein, and left and right cover plates are provided at each of both ends of the tank. By attaching, the liquid storage chamber in which the both ends of each said metal pipe communicates and opens is formed inside both ends, and the said left and right cover plates have at least one cover plate in the center at the said one end side storage chamber. Heat which communicates with the inlet of the said liquid which communicates with and connects the other cover plate to the storage chamber of the other end side in the center part. On the inner side surface of one cover plate and the central partition wall which divides the storage chamber of one end side into two at the center line part up and down or left and right at the inner surface of one cover plate which installed the outlet of the liquid which finished exchange, The cover plate is provided with a heat exchanger communicating with the inflow port of the liquid communicating with one divided storage chamber divided into two divided into two upper and lower sides or two left and right chambers by the central partition wall and the other divided storage chamber. It consists of the structure which provided the outlet of the finished liquid, and consists of the two-pass cover plate which comprised the other cover plate in flat form, and replaces these cover plates to the both ends of the said fruit or refrigerant tank. It is characterized by the configuration so that it can be done.

(3) In addition, the heat exchanger according to claim 3 of the present invention is provided with a central partition wall that divides the storage chamber on one end side up and down from the center portion on the inner side of the cover plate of one side, and further One cover plate is provided with the inflow port of the liquid communicating with one divided storage chamber divided into two upper and lower chambers by the subdivided partition wall, and the other cover plate is divided by the central partition wall. In the upper and lower storage chambers, a partition partition wall for dividing the other divided storage chamber into quarters is provided on the side opposite to the side where the inlet is provided, and the heat exchange is performed at a position partitioned by the partition partition wall. The three-pass cover plate of the structure provided with the outlet of the liquid which complete | finished this is characterized in that it is comprised so that exchange | exchange is affixed freely to the both ends of the said fruit tank or a coolant outer tank.

(4) Moreover, the heat exchanger which concerns on Claim 4 of this invention is the central partition wall which divides the said storage chamber of one end side into two sides from the center part to the left and right or up and down at the said cover part inner side surface, and this center partition The partition partition wall which divides one storage chamber divided into two by the wall into two or more divided storage chambers of upper and lower sides or left and right, is formed in substantially T-shape, and the said partition plate is formed in the inner side surface of the said other cover plate. The central partition wall which divides the storage chamber of one side into two parts up and down or right and left at the part of the center line is provided, and in the said cover plate, either one divided into two chambers of the upper and lower sides or two left and right sides by the said subdivision partition wall. A four-pass cover plate having a configuration in which the inlet of the liquid communicating with the divided storage chamber and the outlet of the finished heat exchanger communicating with the other divided storage chamber is provided. And wherein the exchange is configured to be installed freely in monocytes.

(5) In addition, the heat exchanger according to claim 5 of the present invention performs the heat exchange stepwise by arranging the outer shell tank for fruit or the refrigerant in a multi-tubular manner and circulating the liquid in the respective outer shell tanks in order. In addition, between the outlet and the inlet provided in the cover plate of each coat tank, it communicates using the mixing pipe provided with the mixing screw inside.

According to said means (1), it becomes possible to perform steam supply correctly through a process control valve with respect to the arbitrary set temperature on the secondary (heating liquid) side. In this case, since the automatic valve for ventilation is open, the drain recovery tank and the heat exchanger are in the same pressure state, and as a result, the drain generated in each heat exchanger drops from the drain recovery pipe to the drain recovery tank via the check valve. Are gathered. In addition, the level sensor senses the collected drain amount, and discharges the drain using an arbitrary amount as a cycle.

When draining, the automatic valve for ventilation is closed, and the automatic valve for steam is opened to send steam to the drain recovery tank, so that the drain is discharged to atmospheric pressure using the steam pressure, and upon completion of the automatic valve for ventilation Is open, the steam automatic valve is closed, and this operation is repeated.

According to the above-mentioned means (2), when the number of metal pipes piped in the fruit tank or the refrigerant coat tank is 40, for example, if a cover plate for one pass is attached to both ends of the coat tank, Since the liquid flows through the 40 metal pipes at the same time, the flow rate can be slowed down to reduce the pressure loss.

When a 2-pass cover plate is attached to the overcoat tank instead of the 1-pass cover plate, one storage chamber in which the liquid is divided into 1/2 routes is divided into 20 metal pipes 1/2. The heat storage can be exchanged through 20 x 2 passes = 40 metal pipes in the order of the other storage chamber-> 20 metal pipes-> 1/2 partitioned one storage chamber. In addition, when the 3-pass cover plate mentioned in (3) above is attached to both ends of the tank, the liquid is similarly in the order of return → return → return in total 20 + 10 + 10 = 40 metal pipes When the heat exchange is carried out through and the cover plate for four passes described in the above (4) is attached to both ends of the tank, the liquid is repeated in the same manner from the return path to the return path twice, so that the total of 10 x 4 passes = It is possible to heat exchange through 40 metal pipes. For example, when the four-pass cover plate is used during static cleaning (CIP), the flow rate can be increased to increase the cleaning effect. Therefore, the cover plate is selected from the one to four passes for the cover plate and attached to the outer tank, so that the heat exchange can be performed at a flow rate that matches the properties and viscosity of the liquid and without causing problems such as component changes. Makes it possible to do.

According to the above-mentioned means (5), by increasing or decreasing the number of coat tanks constituted by a multi-pipe type, the capacity can be freely responded, and the combination of heating and cooling is also controlled by controlling the supply of refrigerant and fruit to each coat tank. In addition, the temperature control of heating and cooling is also possible for each tank.

On the other hand, when using a heat exchanger for cooling purpose, if the liquid which flows out from a final coat tank is cooled to target temperature, another problem will not arise especially. However, when the heat exchange is for the purpose of heating, that is, the purpose of steaming and heat sterilization, both of arbitrary heating temperature and time are required. By the way, in the case of a multi-tube heat exchanger, since the passage speed in each outer tank (in a metal pipe) slightly differs, the problem of uneven heating time (flow rate) occurs, but the means described in (5) above. According to the present invention, the agitation and mixing action by the mixing pipe connecting the outlet port and the inlet port of each outer shell tank constituted by the multi-pipe type greatly improves the problem of nonuniformity of the heating time, that is, It is possible to fully achieve the purpose of steaming or heat sterilization.

(The best mode for carrying out the invention)

EMBODIMENT OF THE INVENTION Hereinafter, if embodiment of the heat exchanger which concerns on this invention is described with drawing, FIG. 1 is a block diagram of the continuous automatic packaging system which implemented this invention, A and B are the raw materials of a liquid seasoning, for example. Boiling cooker, C is a supply pipe to send storage liquid (D) to the storage tank (D), which feeds the added liquid seasoning from pumps (P) in each of them. The main liquid which can be heated or cooled at a predetermined temperature using a liquid such as saturated steam water or hot water, or a coolant such as cold water can be added to the increased liquid seasoning sent through the transport pipe E by DP. The heat exchanger which concerns on this invention is shown.

In addition, in the figure, G is a supply pipe which sends the liquid seasoning liquid which heat-exchanges with the heat exchanger Z which concerns on this invention, and passes through the extraction pipe W to the automatic packaging machine J, I is the The conveying pipe connected via the three-way automatic switching valve H on the way, when the liquid seasoning is not heated or cooled to a predetermined temperature, or the liquid seasoning which cannot be finished by the automatic packaging machine J, is conveyed. It passes through the pipe (I) and consists of a structure returned to the said storage tank (D) again.

In addition, JT is a straight cooling device for cooling liquid packaging seasoning continuously packaged by the above-mentioned automatic packaging machine J, and K is a bag-shaped continuous packaging bag JT cooling at a predetermined temperature suitable for packing. , L is a cutting device for cutting the continuous packaging bag (JT) in the form of a cooled strip, the heat exchanger (Z) according to the present invention is incorporated into the packaging line configured as described above, but the configuration of the line shown is carried out 1 By way of example, the present invention can of course be incorporated into packaging lines and other lines other than illustrated.

Next, the structure of the heat exchanger Z according to the present invention described above will be explained with reference to the drawings. FIG. 2 is a configuration diagram illustrating the entirety of the heat exchanger Z constituted by a multi-pipe type (multi-stage), and FIG. 3 is a heat exchanger. A partial cross-sectional front view showing an enlarged coat tank 10 constituting (Z), FIGS. 4 and 5 are left and right side views thereof, and FIGS. 6 and 7 are cover plates attached to the coat tank 10. (A) is an enlarged sectional view of the coat tank along the AA line of FIG. 3, (b) is a sectional view along the BB line of (a), (b) is the CC of (b) As a cross-sectional view along a line, the heat exchanger Z shown in FIG. 1 and FIG. 2 is comprised by connecting two or more outer tanks 10 of the structure shown to FIG. 3 to 5 in series.

That is, the above-mentioned coat tank 10 which made the whole circular tube shape of a thick diameter has the inside of the coat pipe 50 which provided the inflow port 54 of the fruit or a coolant in the upper side as shown in FIG. Support plate for supporting both ends of each of these metal pipes 50P ... in 50H is provided with many metal pipes 50P ... through which the process liquid flows, and inside both ends of the coat pipe 50, respectively. By providing 50E and 50F, the storage chambers 50X and 50Y of the processing liquid are respectively partitioned, and the inlets 50A and 50B of the respective storage chambers 50X and 50Y are respectively covered with a cover plate 60. , 70).

In Fig. 3, 61 and 62 are inlets of the heat exchanged liquid (hereinafter simply referred to as liquid) provided on one cover plate 60, an outlet of the liquid which has completed heat exchange, and 71 is the other cover plate 70. Handles, 51, 52, and 53, respectively, indicate the temperature detection installed on the upper surface of the coat tube 50, and the air inlet to be used when the vent, fruit, or refrigerant is discharged from the coat tube 50, Denoted at 55 is the discharge port of the heat-exhausted drain provided on the bottom surface of the coat pipe 50, and 56, 57, 58 indicate a fixing ring of a casing (not shown) attached to the coat pipe 50.

In addition, in FIGS. 4-7, 63 and 64 are the said one storage chambers in the inner surface of the said one cover plate 60, in order to set the flow path of the liquid which heat-exchanges in each coat pipe 50, 50X) the central partition wall which protruded in the left and right or up and down at the part of a center line, and the partition partition which protruded in 2 division (1/4 division) to divide these two divided storage chambers further It is a wall, and these center partition walls 63 and the partition partition wall 64 are comprised so that it may become substantially T-shape. In addition, 76 denotes the central partition wall which protruded in the inner side of the said cover plate 70 so that the said other storage chamber 50Y can be divided into 2 sides from the part of a center line to left or right.

In one cover plate 60 shown in FIG. 4 and FIG. 6, a liquid inflow hole 61H communicating with each storage chamber 50X divided into quarters by the partition partition wall 64 is provided. Outflow hole 62H of the liquid which completed heat exchange is formed in the opening. One cover plate 60 thus formed and the other cover plate 70 shown in FIG. 7 are used for the four passes shown in FIG. 9 (D). Moreover, the central partition wall 67 which can divide | separate one storage chamber 50X up and down in the inner side surface of one cover board 60 used for the 2 passes shown to FIG. 9 (b) for up and down. The inflow hole 61H and the outflow hole 62H are formed in the plate surface which protrudes and is divided into the board | substrate divided up and down by this center partition wall 67, and (b) of FIG. The outflow hole 73 is not formed in the other cover plate 70 used for 2 passes and 4 passes of (d). In addition, in the cover plate 60 used for the three passes shown in Fig. 9C, the central partition wall 67 and the inflow hole 61H for the two-division are formed. The cover plate 70 includes a partition partition wall 72 having a substantially L-shape for dividing and partitioning the other storage chamber 50Y into quarters, and an outlet hole in a state surrounded by the partition wall 72. 73) is formed.

In the embodiment of the present invention, as shown in FIG. 8, 40 metal pipes 50P, in total, are piped inside the outer tube 50, and the centers of the respective cover plates 60 and 70, respectively. The partition walls 63, 67, and 76 can divide 40 metal pipes 50P in total which are connected (directed) to each storage chamber 50X, 50Y in 1 block = 20 units, The partition walls 64 and 72 can be divided into 1 block = 10 units. In addition, the number of the said metal pipes 50P ... is 1st Example, Of course, the increase and decrease are possible.

In order to make the heat exchanger Z using the coat tank 10 comprised in this way, first, the several frame tanks 10 ... are equipped with the caster frame 1 with the caster for movement as shown in FIG. Multi-stage at the same time, and the medium supply pipe 12 provided in the medium supply feeling 11 (heat supply source in the drawing) of the fruit or the refrigerant through the ball valves 17 and 18, respectively, each coat tank The drain discharge pipe 22 connected to the medium inlet port 54 of (10...) And attached to the respective drain outlet ports 55 is connected to the machine frame frame 1 through the check valve 23. It is connected to the drain recovery tank 20 mounted on the base IT.

Further, an inlet port of the cover plate 60 having the front end of the liquid transport pipe E such as the liquid seasoning sent from the storage tank D by the pump DP, attached to the outermost coat tank 10 ( 61 between the outlet port 62 attached to the cover plate 60 and the cover plate 60 attached to the coat tank 10 of the next stage, As shown in FIG. 10, when it connects to the mixing pipe V of the structure which has the connection ports VR and VL up and down, and is equipped with the screw VA and VB for mixing and stirring inside, the said storage tank ( The liquid sent from D) is sequentially heat-exchanged in the metal pipe 50P… of each coat tank 10…, and heated or cooled to a predetermined temperature, and then the outlet of the coat tank 10 of the final stage ( It passes through the delivery pipe WT connected to 62, and is sent out to the extraction pipe W shown in FIG.

A ball valve 13, a strainer 14, and a pressure reducing valve 15 are attached to the medium supply pipe 12, and are controlled by the controller 40 to control the supply amount of the medium to the storage tank D. A process control valve 16 is provided that can control the fluid sent from it to any temperature. In addition, the medium supply pipe 12 is connected to a first branch pipe 19 capable of sending the medium to the above-described drain recovery tank 20 through the ball valve 19B and the first solenoid valve 19A. It is. The steam trap 12K provided to the second branch pipe 12X is connected to the drain discharge pipe 20A provided to the drain recovery tank 20.

In addition, in FIG. 2, 52 'is a ventilation pipe which connects between the vent 52 of each coat tank 10, and the drain recovery tank 20 mentioned above, and 24 and 25 are these vent pipes 52'. The ball valve and the 2nd solenoid valve which were installed in) are shown. In addition, a ball valve 26, an air operation valve 27, and a vacuum breaker 28 are provided in the vent 52 of the first-stage coat tank 10, and are also provided in the first-stage coat tank 10. A ductometer 30 is attached to one air inlet 53 via a ball valve 29, and a check valve 31 is attached to the air inlet 53 of each coat tank 10. Air vents 32 and 38 are attached via 39.

In addition, the drain recovery tank 20 is provided with a drain discharge level sensor 21, and the drain discharge pipe 20A connected to the tank 20 has a check valve 33, a strainer 34, and a trap. 35 (steam trap) and the check valve 36 are attached, and the front end is connected to the drain recovery tank 37. 41 is a temperature sensor for detecting the temperature of the liquid heat exchanged from the discharge pipe (WT), 42, 43 is for detecting the temperature of the medium attached to the temperature detection port 51 of the respective outer tube (50) It is a temperature sensor, and the temperature data detected by each of these temperature sensors 41, 42, 43 is sent to the above-mentioned control device 40, and has a structure in which the temperature of the medium is adjusted to an appropriate temperature.

The heat exchanger Z configured as described above controls the medium supply (steam supply) from the medium supply source 11 with respect to an arbitrary set temperature of the secondary side (heating liquid) set in the control device 40. Is performed while controlling the process control valve 16. In this case, since the second solenoid valve 25 of the vent pipe 52 'is open, the drain recovery tank 20 and the interior of each coat tank 10 are in the same pressure state, and therefore, each coat tank The drain generated in 10 falls through the drain discharge pipe 22 and is collected in the drain recovery tank 20 via the check valve 23.

As described above, the drain collected in the drain recovery tank 20 detects the amount and discharges the drain using an arbitrary amount as a cycle. However, in the drain discharge, the second solenoid valve 25 ) Is closed, and since the first solenoid valve 19A of the first branch pipe 19 for supplying the medium is opened to send the medium (steam) into the drain recovery tank 20, The drain is discharged into atmospheric pressure through the drain discharge pipe 20A. At the same time as the discharge is completed, the first solenoid valve 19A is closed, the second solenoid valve 25 is opened, and this operation is repeated.

Next, the liquid return path method by the central partition wall 64 for flow path setting provided in each cover plate 60 and 70 mentioned above is demonstrated, referring FIG.

9 (a) provides a liquid inlet 65 at the center of one cover plate 60 without providing the partition walls 63, 64, 67, 72, and 76 described above, and the other. 8 shows a configuration of a one-pass specification in which the outlet 75 of the heat-exchanged liquid is provided at the center of the cover plate 70 of FIG. 8, and the number of the metal pipes 50P installed in the outer tube 50 is shown in FIGS. Similarly, in the case of 40 pieces, the liquid flowing in from the inflow port 65 flows through the interior of these 40 metal pipes 50P... With a low flow rate and low pressure loss, and flows out from the outlet port 75. do.

9 (b) attaches the center partition wall 67, the inflow hole 61H, the outflow hole 62H, and one cover plate 60 installed to one end opening 50A of the coat pipe 50. By attaching a flat cover plate 70 having no partition wall or hole to the other end 50Y, the number of metal pipes 50P through which liquid flows is set to 20 paths and 20 paths. 9 (C) shows a central partition wall 67 and an inflow hole 61H in one cover plate 60, and splits in the other cover plate 70. FIG. By providing the partition wall 72 and the outlet 73, the method of "three passes 40" which made the number of the metal pipes 50P which a liquid flows into 20 paths, 10 return paths, and 10 return paths is shown. . In addition, FIG. 9 (D) shows one cover plate 60 having a central partition wall 63, a partition partition wall 64, an inlet hole 61H, and an outlet hole 62H shown in FIG. The liquid flows by attaching to the one end opening 50A of the pipe | tube 50, and attaching the other cover plate 70 provided with the center partition wall 76 shown in FIG. 7 to the other end 50Y. The method which set the number of the pipes 50P as "four passes 40" which made ten paths, ten return paths, ten return paths, and ten return paths is shown. And this "4 pass 40 system" can be used in the case of stationary washing | cleaning (CIP) which wash | cleans the inside of each metal pipe 50P ..., and can exhibit a high washing | cleaning effect.

From the above configuration, it is possible to change the pressure loss to one quarter by replacing the cover plates 60 and 70 attached to the outer tube 10 or changing the attachment angle, so that the properties of the liquid Optimum heat exchange can be performed by appropriately selecting and using the above method in accordance with the type or the degree of heat exchange.

As mentioned above, according to the heat exchanger which concerns on this invention, the drain discharge method has less trouble compared with the conventional Mecha type | mold, and even if it is a multi-pipe type, it is low temperature by saturated steam which can reliably discharge the heat exchanged drain for each outer tank. A heating system can be provided. Moreover, the heat exchange can be effectively performed at a flow rate (flow rate) in accordance with the properties and viscosity of the liquid to be cooled or heated only by changing or changing the angle of attachment of the cover plate to the coolant or the heat-sealing tank for heat exchange. The problem of non-uniformity of heating time, which is a problem of multi-tube heat exchange, can also be greatly improved by mixing and stirring effect by repetition of a pass and adhesion of a mixing pipe, and can exhibit excellent steaming and heat sterilization effect. In combination with the point that the excellent heat exchanging action and stirring action can be effectively exerted by the switching, it is particularly suitable for the multi-pipe heat treatment or cooling treatment in the automatic packaging system as illustrated in FIG. 1.

Claims (5)

As a heat exchanger which arrange | positions a metal pipe in the atmosphere filled with fruit, and heat-exchanges between the liquid which flows in this metal pipe, and a fruit, Steam is supplied from the steam supply source through the process control valve for the predetermined temperature of the liquid to be heated on the secondary side, A vent pipe and a drain recovery pipe are piped between the heat exchanger and the drain recovery tank, and the vent pipe is provided with an automatic valve for opening according to the start of the steam supply, and a check valve is installed in the drain recovery pipe, The drain recovery tank includes a drain discharge level sensor that senses the amount of the recovered drain and cycles an arbitrary amount to enable drain discharge, and allows steam to be sent from the steam supply source through an automatic valve for steam. At the same time install a steam feed pipe Upon detection of the drain discharge sensor, the automatic valve for ventilation is closed and the automatic valve for steam is opened to enable discharge of the drain by sending steam. A heat exchanger characterized in that the automatic valve is opened and the automatic valve for steam is returned to the closed position. A heat exchanger in which a metal pipe is arranged in an atmosphere filled with a fruit or a refrigerant, and heat exchanges between a liquid flowing in the metal pipe and a fruit or a refrigerant, Support plates for supporting both ends of the respective metal pipes are provided inside both ends of the fruit or refrigerant coat tank in which a plurality of metal pipes are piped inside, and left and right cover plates are attached to each of the both ends of the tank. Thereby, while forming the storage chamber of the said liquid which both ends of each said metal pipe communicates and opens in both ends, The cover plates on the left and right side have a configuration in which at least one cover plate is provided at its central portion with an inlet for the liquid communicating with the storage chamber at one end side, and the other cover plate is disposed at the other end storage compartment at the center portion thereof. The cover plate for one pass which made the structure which installed the outlet of the liquid which completed the heat exchange to communicate with, On the inner side surface of one cover plate, a central partition wall for dividing the storage chamber on one end side up and down or left and right at its center line portion is provided, and on the cover plate of one side, the upper and lower sides are formed by the center partition wall. Alternatively, the inlet of the liquid communicating with one divided storage chamber divided into two right and left chambers and the outlet of the finished heat exchanger communicating with the other divided storage chamber are provided, and the other cover plate is formed into a flat plate shape. It is comprised by the cover plate for two passes which comprised these, The heat exchanger comprised so that these cover plates can be exchanged and attached to the both ends of the said tank for a fruit or a refrigerant | coolant. A heat exchanger in which a metal pipe is arranged in an atmosphere filled with a fruit or a refrigerant, and heat exchanges between a liquid flowing in the metal pipe and a fruit or a refrigerant, Support plates for supporting both ends of the respective metal pipes are provided inside both ends of the fruit or refrigerant coat tank in which a plurality of metal pipes are piped inside, and left and right cover plates are attached to each of the both ends of the tank. Thereby, while forming the storage chamber of the said liquid which both ends of each said metal pipe communicates and opens in both ends, A central partition wall for dividing the left and right cover plates into at least one inner side of the cover plate and dividing the storage chamber on the one end side up and down at the center portion thereof is provided. The inflow port of the liquid communicating with one of the divided storage chambers divided into two upper and lower chambers by the central partition wall is provided. The cover plate of the other is the upper and lower storage chambers divided by the central partition wall. A partition partition wall for dividing and dividing the other partition storage chamber into quarters is provided on the side opposite to the side where the inlet port is provided, and an outlet port of the fluid which has completed heat exchange is provided at a position partitioned by this partition partition wall. A three-pass cover plate is formed, and the three-pass cover plate is configured to be interchangeably attached to both ends of the fruit or refrigerant coat tank. Exchange. A heat exchanger in which metal pipes are arranged in an atmosphere filled with a fruit or a refrigerant, and heat exchanges between a liquid flowing in the metal pipe and a fruit or a refrigerant. Support plates for supporting both ends of the respective metal pipes are provided inside both ends of the fruit or refrigerant coat tank in which a plurality of metal pipes are piped inside, and left and right cover plates are attached to each of the both ends of the tank. Thereby, while forming the storage chamber of the said liquid which both ends of each said metal pipe communicates and opens in both ends, The central partition wall which divides the said left and right cover plates into at least one inner side of the cover plate, and divides the said storage chamber of one end side into left and right or up and down at the center part, and the one which was divided into 2 parts by this center partition wall. The partition partition wall which divides into two storage compartments into the storage compartment of upper and lower sides or two left and right sides is formed in substantially T-shape, and the storage chamber of the other end side is formed in the inner surface of the other cover plate. The central partition wall divided into two at the top and bottom or left and right at the part of a center line is provided, and the said one cover plate communicates with either divided storage chamber divided | segmented into two rooms up and down or left and right by the said repartitioned partition wall. A four-pass cover plate is formed, having a configuration in which the inlet of the liquid and the outlet of the heat-exchanged liquid communicating with the other divided storage chamber are provided, and the four-pass cover plate is used for the fruit or the refrigerant. Heat exchanger, characterized in that configured to exchange freely attached to both ends of the old tank coat. The heat exchange step according to any one of claims 2 to 4, wherein the fruit or refrigerant coat tank is provided in a multi-pipe manner, and the liquid is sequentially flowed into each of the coat tanks to perform heat exchange step by step. At the same time, a heat exchanger is connected between each outlet and inlet provided on the cover plate of each outer tank by using a mixing pipe provided with a mixing screw therein.

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