JP2012228192A - Heat exchanger for liquid - Google Patents

Abstract

PROBLEM TO BE SOLVED: To make cleaning and maintenance easy, to always maintain good hygienic condition, and reduce a cost and a manufacturing cost.SOLUTION: A heat exchanger for liquid has a cylindrical body part 2 having a heat exchanging cylindrical part 2p having an outer peripheral surface 2po and an inner peripheral surface 2pi in at least a part of the same, a liquid housing chamber Sw where the primary fluid Wf fed from the primary side feeding part 3s can come into contact with the whole surface of the outer peripheral surface 2po in the head exchanging cylindrical part 2p, further has the primary side fluid treating part 3 where the primary side fluid Wf in which heat is exchanged is discharged from the primary side discharging part 3e, and the secondary side liquid treating part 4 where the secondary side liquid Ls can come into contact with the whole surface the inner peripheral surface 2pi in the heat exchanging cylindrical part 2p by the secondary side liquid Ls fed from the secondary side feeding part 4s on the surface of the inner peripheral surface 2pi in the head exchanging cylindrical part 2p from above and the secondary side liquid Ls in which heat is exchanged is discharged from the secondary side discharging part 4e.

Description

  The present invention relates to a liquid heat exchanger suitable for use in, for example, precooling raw milk in a milk processing system that performs heat exchange between a primary fluid and a secondary fluid.

  Generally, raw milk milked by a milking machine is temporarily stored in a milk storage tank provided with a cooling device until milk collection is performed. This milk storage tank is called a bulk cooler, and raw milk after milking is accommodated in this bulk cooler via a feeding pipe. However, in this case, it takes time to cool even if warm raw milk is supplied to the bulk cooler as it is. Time is saved, energy saving and running cost are reduced, and the quality of raw milk is not degraded.

  Conventionally, as a heat exchanger used for such pre-cooling, a heat exchanger disclosed in Patent Document 1 is known. In the same document 1, cooling water is supplied from an ice builder that produces cooling water to the outer periphery thereof. In a bulk cooler equipped with a storage tank that circulates through the cooling jacket and cools and cools the milk stored inside, a balance tank that receives the milk from the milking room and a plate cooler that circulates cooling water from the ice builder (heat exchanger) In addition, a cooling and cooling system in a bulk cooler is disclosed that includes a plate cooler and a flow rate adjusting valve sequentially from a balance tank and a milk conveying means extending to the milk storage tank. A plate cooler is usually configured by sandwiching a plurality of plates made of stainless steel, etc. arranged in order in a frame, forming a fluid path by alternately combining the plates, and partitioning this path with a sealing member. Yes, if raw milk is allowed to flow in one path and cooling water is allowed to flow in the other path, heat exchange is performed through the plate, and the raw milk is cooled to about several degrees Celsius.

JP-A-10-215718

  However, the conventional heat exchanger (plate cooler) used for the preliminary cooling described above has the following problems.

  First, since this type of heat exchanger is used for the purpose of precooling raw milk after milking, it is important not only to secure cooling capacity but also to maintain good hygiene at all times. Although it becomes an important subject, since the conventional plate cooler is combined with a flow path of a narrow gap due to its structure, dirt easily adheres and accumulates, and cleaning and maintenance are not easy. Moreover, it is not always desirable from the viewpoint of ensuring and maintaining a good hygiene state, such as the fact that the internal dirt state cannot be easily confirmed.

  Secondly, the cost is increased due to the complicated structure and the increased number of parts, and further, the cost is increased due to an increase in the number of manufacturing steps, and an increase in product price is inevitable. And since it is necessary to flow through a narrow flow path, the flow resistance at the time of allowing raw milk to pass through becomes large. Eventually, there was room for further improvement from the viewpoints of energy saving and running costs, such as the need for a large-scale breast pump considering flow resistance.

  The object of the present invention is to provide a liquid heat exchanger that solves the problems in the background art.

  In order to solve the above-described problems, the present invention provides a heat exchanger having an outer peripheral surface 2po and an inner peripheral surface 2pi when configuring the liquid heat exchanger 1 that performs heat exchange between the primary fluid Wf and the secondary liquid Ls. The cylindrical body part 2 having at least a part of the cylindrical part 2p, and the primary side fluid Wf supplied from the primary side supply part 3s with respect to the entire outer peripheral surface 2po (or inner peripheral surface 2pi) of the heat exchange cylindrical part 2p A primary side fluid treatment unit 3 that has a fluid storage chamber Sw that can be contacted with each other and that is subjected to heat exchange and is supplied from a secondary side supply unit 4s. The secondary liquid Ls flows down from the top surface of the inner peripheral surface 2pi (or outer peripheral surface 2po) of the heat exchange tube portion 2p to the entire inner peripheral surface 2pi (or outer peripheral surface 2po) of the heat exchange tube portion 2p. Heat-exchangeable Secondary side liquid Ls is characterized in that it comprises a secondary liquid treatment unit 4, which is discharged from the secondary discharge portion 4e.

  In this case, according to a preferred aspect of the invention, the primary fluid Wf can contain at least one of water, solution, steam or air, and the secondary liquid Ls contains milk that has been milked. Can be applied. On the other hand, the heat exchange cylinder part 2p in the cylindrical body part 2 can be formed in a columnar shape Fs or a conical shape Fc. Moreover, the cylindrical body part 2 may be constituted integrally, or may be constituted by a combination of a plurality of divided cylindrical body parts 2a, 2b, 2c divided in the axial direction Da. Furthermore, the secondary side supply unit 4s of the secondary side liquid processing unit 4 can supply the secondary side liquid Ls in the vertical direction Dv with respect to the inner peripheral surface 2pi (or the outer peripheral surface 2po) of the heat exchange cylinder unit 2p. Alternatively, it may be configured to be able to supply in the spiral direction Ds.

  The liquid heat exchanger 1 according to the present invention having such a configuration has the following remarkable effects.

  (1) The secondary-side liquid Ls supplied from the secondary-side supply unit 4s by the secondary-side liquid processing unit 4 causes the surface of the inner peripheral surface 2pi (or outer peripheral surface 2po) of the heat exchange cylinder portion 2p to be viewed from above. Since it is possible to contact the entire inner peripheral surface 2pi (or outer peripheral surface 2po) of the heat exchanging cylinder portion 2p by flowing down, the heat exchanging cylinder portion 2p having a heat exchanging function has an extremely simple shape (path). It can be formed and can be easily cleaned and maintained. In addition, since the secondary liquid Ls flows down the surface of the inner peripheral surface 2pi (or the outer peripheral surface 2po) from above, it is difficult for dirt to adhere and accumulate, and at least a part of the cylindrical body portion 2 is removed. If it is made of a transparent material, it is possible to maintain a good hygiene condition at all times, for example, the internal dirt state can be easily confirmed.

  (2) With the simplification of the overall structure of the liquid heat exchanger 1, the number of parts can be drastically reduced. Therefore, the cost of the product can be reduced, for example, the cost of parts can be reduced and the cost can be reduced by reducing the number of manufacturing steps. In addition, since there is no need to flow through a narrow flow path, the flow resistance when the secondary liquid Ls is allowed to pass can be almost ignored, and a large liquid pump considering the flow resistance is not required. This is also advantageous from the viewpoint of safety and running cost. In addition, even if the flow rate of the secondary side liquid Ls fluctuates, there is little influence, and the secondary side liquid Ls can be cooled stably.

  (3) According to a preferred embodiment, the primary fluid Wf can contain at least one of water, solution, steam, or air, so various media can be used because of the simple shape of the heat exchange tube portion 2p. become. Therefore, the design freedom and versatility from the viewpoint of selecting the primary fluid Wf can be enhanced.

  (4) According to a preferred embodiment, when milked raw milk Ls is applied to the secondary liquid (Ls), it is optimally used for precooling raw milk Ls that tends to have a large flow resistance, As a secondary effect, an effect of removing bubbles generated by passing through a breast feeding pipe or a breast feeding pump can be expected.

  (5) According to a preferred embodiment, the heat exchange tube portion 2p in the tubular body portion 2 can be formed in a columnar shape Fs or a conical shape Fc. Therefore, if the shape of the heat exchange tube portion 2p is selected, the secondary side liquid Ls In order to improve versatility and multifunctionality, such as selecting whether to use the inner peripheral surface 2pi or the outer peripheral surface 2po of the heat exchange cylindrical portion 2p for cooling the cylindrical body portion 2 in various forms In addition to making contributions, the overall size can be changed relatively easily.

  (6) If the cylindrical body part 2 is constituted by a combination of a plurality of divided cylindrical body parts 2a, 2b, 2c divided in the axial direction Da according to a preferred embodiment, the cylindrical body part 2 can be assembled and disassembled. Since it can be performed easily, it can contribute to the improvement of the further cleaning property and maintenance property.

  (7) According to a preferred aspect, the secondary side supply unit 4s of the secondary side liquid processing unit 4 supplies the secondary side liquid Ls to the inner peripheral surface 2pi (or the outer peripheral surface 2po) of the heat exchange cylinder unit 2p. Since it may be configured to be able to supply in the vertical direction Dv, or may be configured to be able to supply in the spiral direction Ds, the design freedom including heat exchange performance etc. can be selected by selecting the supply direction of the secondary side liquid Ls. The degree can be increased.

A cross-sectional front view of a liquid heat exchanger according to a preferred embodiment of the present invention, Sectional plan view of the heat exchanger for the liquid, Action explanatory diagram of the liquid heat exchanger, Schematic diagram of a milk processing system comprising the liquid heat exchanger, An external front view of a liquid heat exchanger according to a modified embodiment of the present invention, The external appearance front view of the heat exchanger for liquids concerning other change embodiments of the present invention, Sectional front view of a heat exchanger for liquid according to another modified embodiment of the present invention, A partial cross-sectional front view of a liquid heat exchanger according to another modified embodiment of the present invention,

  Next, preferred embodiments according to the present invention will be given and described in detail with reference to the drawings.

  First, in order to facilitate understanding of the liquid heat exchanger 1 according to the present embodiment, an outline of a milk processing system 50 using the liquid heat exchanger 1 will be described with reference to FIG.

  The milk processing system 50 is provided inside the processing chamber 80, and raw milk Ls milked by a milking machine (not shown) is introduced into the processing chamber 80 via the milk receiving pipe 51. A milk receiving device 52 is installed in the processing chamber 80, and the raw milk Ls supplied through the milk receiving pipe 51 is temporarily stored in the milk receiving device 52. When the breast-feeding device 52 becomes full, the breast feeding pump 53 is activated, and the raw milk Ls is supplied to the bulk cooler 55 installed in the processing chamber 80 through the breast feeding pipe 54 (54a, 54b). It has.

  The liquid heat exchanger 1 according to the present embodiment is used in the middle of the milk feeding pipe 54, that is, connected between the upstream pipe 54a and the downstream pipe 54b. Accordingly, the warm raw milk Ls is precooled to about several degrees C. by the liquid heat exchanger 1 and then supplied to the bulk cooler 55. That is, even if the warm raw milk Ls is supplied to the bulk cooler 55 as it is, it takes time to cool the raw milk Ls, so that the raw milk Ls to be transferred immediately before being stored in the bulk cooler 55 is the liquid heat exchanger 1 according to this embodiment. By pre-cooling, the operation time of the bulk cooler 55 is saved, energy saving and running cost are reduced, and quality deterioration of the raw milk Ls is prevented from occurring.

  In this case, since the liquid heat exchanger 1 includes the primary side fluid processing unit 3 and the secondary side liquid processing unit 4 as a basic structure, the primary side supply unit 3 s of the primary side fluid processing unit 3 includes a water supply pipe 62. The primary side discharge part 3e of the primary side fluid processing part 3 is connected to the return port of the cooling water supply source 61 via the drain pipe 63. Thereby, the primary side heat exchange system by which the cooling water (primary side fluid) Wf is circulated and supplied with respect to the primary side fluid processing part 3 is comprised. The secondary side supply unit 4s of the secondary side liquid processing unit 4 is connected to the discharge port of the breast feeding pump 53 via the upstream pipe 54a described above, and the secondary side of the secondary side liquid processing unit 4 The discharge part 4e is connected to the inlet of the bulk cooler 55 through the downstream pipe 54b. Thereby, after the milk (secondary side liquid) Ls delivered by the breast feeding pump 53 is precooled by the secondary side liquid processing unit 4, a secondary side heat exchange system supplied to the bulk cooler 55 is configured. . In addition, while 64 shows the electromagnetic on-off valve connected to the middle of the water supply pipe 62, 65 shows a washing tank, The washing water at the time of washing | cleaning is accommodated in the said washing tank 65 via the downstream piping 54b.

  Next, a specific configuration of the liquid heat exchanger 1 according to the present embodiment will be described with reference to FIGS. 1 and 2.

  As shown in FIGS. 1 and 2, the liquid heat exchanger 1 includes a cylindrical body portion 2 having at least a portion of a heat exchange cylinder portion 2p having an outer peripheral surface 2po and an inner peripheral surface 2pi. The illustrated cylindrical body part 2 integrally includes an upper guide cylinder part 2pu located at the upper part, a cylindrical heat exchange cylinder part 2p located at the middle part, and a lower guide cylinder part 2pd located at the lower part. In this case, the heat exchange cylinder part 2p is formed in a columnar shape Fs having the same diameter in the vertical direction, and the upper guide cylinder part 2pu extends in a conical shape so that the diameter gradually decreases from the upper end of the heat exchange cylinder part 2p. The lower guide cylinder portion 2pd is formed to extend in an inverted conical shape so that the diameter gradually decreases from the lower end of the heat exchange cylinder portion 2p. Further, the upper guide tube portion 2pu, the heat exchange tube portion 2p and the lower guide tube portion 2pd may be integrally formed of the same material, or the upper guide tube portion 2pu, the heat exchange tube portion 2p and the lower material formed of different materials. The guide tube portion 2pd may be combined and integrated. When combined, for example, the heat exchange tube portion 2p is formed of a material having good thermal conductivity, and the upper guide tube portion 2pu and the lower guide tube portion 2pd are formed of a transparent material that allows the inside to be visually confirmed. In this case, in particular, there is an advantage that an internal dirt state or the like in the heat exchange tube portion 2p can be easily confirmed through the upper guide tube portion 2pu.

  Moreover, the inner side of the cylindrical body part 2 including the inner peripheral surface 2pi of the heat exchange cylinder part 2p is configured as a secondary side liquid treatment part 4. The secondary side liquid processing unit 4 includes a secondary side supply unit 4s provided at the upper end of the upper guide cylinder 2pu. The secondary-side supply unit 4s is connected to the upstream pipe 54a described above, the connection port 11 into which the raw milk Ls flows, and the rectification chamber 12 serving as a first rectification unit that rectifies the raw milk Ls that flows in from the connection port 11. The raw milk Ls that is located directly below the rectifying chamber 12 and that has fallen from the rectifying chamber 12 is guided in the entire radial direction of 360 °, and is formed in an umbrella shape so as to hit the inner peripheral surface 2pui of the upper guide cylinder portion 2pu. A rectifying board 13 serving as a second rectifying means is provided. The illustrated rectifier 13 is supported by a plurality of stays 13s arranged at predetermined intervals in the circumferential direction. On the other hand, the secondary side liquid processing part 4 includes a secondary side discharge part 4e provided at the lower end of the lower guide cylinder part 2pd. This secondary side discharge part 4e is connected to the downstream side pipe 54b described above and includes a connection port 14 through which the raw milk Ls flows out.

  On the other hand, the primary side fluid treatment part 3 is attached to the outer peripheral surface 2po of the heat exchange cylinder part 2p. The primary side fluid processing unit 3 is formed to have a larger diameter than the heat exchange cylinder part 2p, and an outer cylinder plate part 15m having a predetermined gap interposed between the outer peripheral surface 2po and the upper and lower ends of the outer cylinder plate part 15m. A primary-side fluid storage portion 15 including a ring-shaped upper end plate portion 15u and a lower end plate portion 15d that extends in the center direction and closes the upper and lower sides of the gap is provided, and a fluid storage chamber Sw is provided inside the primary-side fluid storage portion 15. Is provided. Further, the water supply pipe 62 shown in FIG. 4 is connected to the lower side of the outer cylindrical plate portion 15m, and the primary side supply portion 3s using the connection port 16 into which the cooling water Wf flows is provided. The drain pipe 63 shown in FIG. 4 is connected to the primary side supply unit 3s, for example, at a position opposite to the primary side supply unit 3s by 180 °, and heat exchange is performed by the primary side fluid treatment unit 3. The primary side discharge part 3e using the connection port 17 through which the cooling water Wf flows out is provided.

  Next, the function (action) and method of use of the liquid heat exchanger 1 according to the present embodiment will be described with reference to FIGS.

  First, as shown in FIG. 4, the liquid heat exchanger 1 according to the present embodiment is used by being connected to the middle of a breast feeding pipe 54 that connects a breast feeding pump 53 and a bulk cooler 55 in the milk processing system 50. In this case, the liquid heat exchanger 1 connects the connection port 11 of the secondary side supply unit 4s to the upstream milk feeding pipe 54a, and connects the connection port 14 of the secondary side discharge unit 4e to the downstream side milk feeding. While connecting to the piping 54b, the connection port 16 of the primary side supply part 3s is connected to the water supply pipe 62, and the connection port 17 of the primary side discharge part 3e is connected to the drain pipe 63.

  Thus, the cooling water Wf is supplied from the external cooling water supply source 61 through the water supply pipe 62. Then, as shown in FIG. 3, the supplied cooling water Wf flows into the lower side of the fluid storage chamber Sw through the primary side supply unit 3 s (connection port 16) of the liquid heat exchanger 1. Since the entire shape of the fluid storage chamber Sw is cylindrical, the cooling water Wf is also a cylindrical layer, and can contact the entire outer peripheral surface 2po of the heat exchange cylinder portion 2p. Further, the cooling water Wf that has flowed into the lower side of the fluid storage chamber Sw gradually moves upward. At this time, the outer peripheral surface 2po of the heat exchange tube portion 2p is cooled by the cooling water Wf. Then, the cooling water Wf that has moved to the upper side of the fluid storage chamber Sw and subjected to heat exchange is discharged through the primary side discharge portion 3 e (connection port 17), and further through the drain pipe 63 to the return port in the cooling water supply source 61. Returned. The illustrated cooling water supply source 61 is a circulation type, and the cooling water Wf returned to the return port is cooled again and used as new cooling water Wf.

  On the other hand, the raw milk Ls sent through the upstream milk feeding pipe 54a flows into the secondary supply section 4s (connection port 11). At this time, the raw milk Ls flowing in from the lateral direction once flows into the rectifying chamber 12 and falls downward from the rectifying chamber 12. In this case, it falls to the approximate center of the rectifier 13 and then the raw milk Ls flows in the 360 ° total radial direction on the upper surface of the rectifier 13 formed in an umbrella shape. The raw milk Ls that has flowed through the rectifier 13 hits the inner peripheral surface 2pui of the upper guide tube portion 2pu, and the raw milk Ls flows down along the surface of the inner peripheral surface 2pui, and further, the raw milk Ls flows on the inner peripheral surface 2pi of the heat exchange tube portion 2p. Flows down the surface. Accordingly, the raw milk Ls can come into contact with the entire inner peripheral surface 2pi by flowing down the surface of the inner peripheral surface 2pi from above, and the entire outer peripheral surface 2po is cooled by the cooling water Wf. Is cooled (heat exchanged) by contacting the surface of the inner peripheral surface 2pi. In this case, the target is to select the temperature of the cooling water Wf and the like, and to precool the temperature of the raw milk Ls to about several degrees Celsius.

  Thereafter, the raw milk Ls flows on the inner peripheral surface 2pdi of the lower guide cylinder portion 2pd and is discharged through the secondary discharge portion 4e (connection port 14). The discharged raw milk Ls is supplied to the bulk cooler 55 through the downstream pipe 54b. In FIG. 3, the flow path of the cooling water Wf is indicated by a dotted line arrow, and the flow path of the raw milk Ls is indicated by a solid line arrow. FIG. 3 schematically shows a state in which raw milk flows down the surface of each inner peripheral surface 2 ui... Using Ls having the same sign.

  Therefore, according to the liquid heat exchanger 1 according to this embodiment, the raw milk (secondary liquid) Ls supplied from the secondary side supply unit 4s by the secondary side liquid processing unit 4 is heated. Since the surface of the inner peripheral surface 2pi of the exchange cylinder portion 2p flows down from above, the heat exchange cylinder portion 2p having the heat exchange function can be brought into contact with the entire inner peripheral surface 2pi of the heat exchange cylinder portion 2p. It can be formed with a very simple shape (path), and cleaning and maintenance can be easily performed. Moreover, since the raw milk Ls flows down from the surface of the inner peripheral surface 2pi from above, dirt is difficult to adhere and accumulate, and if the cylindrical body portion 2 is formed at least partially from a transparent material, A good hygiene condition can be maintained at all times, such as easily confirming the dirty condition.

  Moreover, the number of parts can be drastically reduced with the simplification of the overall structure of the liquid heat exchanger 1. Therefore, the cost of the product can be reduced, for example, the cost of parts can be reduced and the cost can be reduced by reducing the number of manufacturing steps. In addition, since there is no need to flow through a narrow flow path, the flow resistance when the raw milk Ls is passed can be almost ignored, and a large breast feeding pump that takes flow resistance into consideration is not required, and the viewpoint of energy saving. In addition, it is advantageous from the viewpoint of running cost. In addition, even if the flow rate of the raw milk Ls fluctuates, there is little influence and the raw milk Ls can be cooled stably. In particular, in the liquid heat exchanger 1 according to the present embodiment, since the milked raw milk Ls is applied as the secondary side liquid (Ls), it is optimally used for precooling the raw milk Ls that tends to have a large flow resistance. As a secondary effect, an effect of removing bubbles generated by passing through the breast feeding pipe 54 and the breast feeding pump 53 can be expected.

  5 to 8 show various liquid heat exchangers 1... According to a modified embodiment of the present invention. FIG. 5 shows a modification of the cylindrical body portion 2, that is, a combination of a plurality of divided cylindrical body portions 2a, 2b, 2c obtained by dividing the cylindrical body portion 2 in the axial direction Da. In the case of the example, the independent parts in which the upper guide cylinder part 2pu located in the upper part, the heat exchange cylinder part 2p located in the middle part, and the lower guide cylinder part 2pd located in the lower part shown in FIG. Formed as. That is, as shown in FIG. 5, the flange 31 is integrally provided at the lower end of the upper guide cylinder portion 2pu to form the divided cylinder portion 2a, and the flanges 32 and 33 are respectively integrated at the upper end and the lower end of the heat exchange cylinder portion 2p. The divided cylindrical body portion 2b is provided, and the flange 34 is integrally provided at the upper end of the lower guide cylindrical portion 2pd to form the divided cylindrical body portion 2c. Thereby, each flange 31 and 32, 33, and 34 which oppose can be comprised so that attachment or detachment (disassembly and assembly) is possible with fixing tools, such as a volt | bolt nut which abbreviate | omitted illustration. According to the liquid heat exchanger 1 according to such a modified embodiment, the cylindrical body portion 2 is configured by a combination of a plurality of divided cylindrical body portions 2a, 2b, and 2c divided in the axial direction Da. Even if it exists, the assembly and decomposition | disassembly with respect to the cylindrical body part 2 can be performed easily, and it can contribute to the improvement of the further washing | cleaning property and maintenance property.

  FIG. 6 shows a modification of the secondary supply unit 4 s in the secondary liquid processing unit 4. The secondary side supply unit 4s shown in FIG. 1 can supply the raw milk Ls that has flowed in the vertical direction Dv with respect to the inner peripheral surface 2pi of the heat exchange cylinder part 2p by providing the rectification chamber 12 and the rectification board 13. However, the secondary side supply unit 4s shown in FIG. 6 is provided with the connection port 11 directly on the peripheral surface near the upper end of the heat exchange cylinder part 2p, and the raw milk Ls is applied to the inner peripheral surface 2pi of the heat exchange cylinder part 2p. Thus, it can be supplied in the lateral direction, that is, the spiral direction Ds. Thereby, the raw milk Ls flowing in from the connection port 11 flows down in the spiral direction Ds on the inner peripheral surface 2pi of the heat exchange tube portion 2p. Therefore, in this case, the upper guide tube portion 2pu in FIG. 1 is not necessary. As described above, the secondary supply unit 4s of the secondary liquid processing unit 4 supplies the raw milk Ls in the vertical direction Dv with respect to the inner peripheral surface 2pi of the heat exchange cylinder unit 2p as shown in FIG. As shown in FIG. 6, it may be configured to be able to supply in the spiral direction Ds, and the design including the heat exchange performance etc. by selecting the supply direction of the secondary side liquid Ls The degree of freedom can be further increased.

  FIG. 7 shows a change in the overall layout of the liquid heat exchanger 1. The liquid heat exchanger 1 shown in FIG. 1 exemplifies a case where the raw milk Ls is supplied to the inner peripheral surface 2pi of the heat exchange cylinder portion 2p and the cooling water Wf is supplied to the outer peripheral surface 2po. The liquid heat exchanger 1 supplies the cooling water Wf to the inner peripheral surface 2pi of the heat exchange cylinder portion 2p and supplies the raw milk Ls to the outer peripheral surface 2po. Thus, the outer peripheral surface 2po and the inner peripheral surface 2pi of the heat exchange cylinder portion 2p can be used for both the primary side fluid processing unit 3 and the secondary side liquid processing unit 4, respectively. Moreover, in FIG. 7, the heat exchange cylinder part 2p in the cylindrical body part 2 was formed in the conical shape Fc. Thereby, since the surface which the raw milk Ls contacts becomes an inclined surface, the raw milk Ls can flow down stably along the surface. Thus, since the heat exchange cylinder part 2p in the cylindrical body part 2 can be formed in either the columnar shape Fs as shown in FIG. 1 or the conical shape Fc as shown in FIG. 7, the heat exchange cylinder part 2p If the shape is selected, the cylindrical body portion 2 can be implemented in various forms including selection of whether the inner peripheral surface 2pi of the heat exchange cylindrical portion 2p or the outer peripheral surface 2po is used for cooling the secondary side liquid Ls. Thus, it is possible to contribute to the improvement of diversity and multifunctionality, and the entire size can be easily changed. In FIG. 7, reference numeral 41 denotes a protective cover, and 41 d denotes an inclined bottom surface portion of the protective cover 41.

  FIG. 8 shows a modification of the secondary side supply unit 4 s in the secondary side liquid processing unit 4. That is, the upper guide tube portion 2pu is formed in a hemispherical dome shape, and the connection port 11 in the secondary supply portion 4s extends inside the upper guide tube portion 2pu, and the inner end of the connection port 11 is If the raw milk Ls is supplied through the connection port 11, it can be implemented with a relatively simple configuration. In addition, in FIGS. 5-8, the same code | symbol is attached | subjected to FIGS. 1-3, and the same code | symbol is clarified, and the detailed description is abbreviate | omitted.

  The preferred embodiment (modified embodiment) has been described in detail above, but the present invention is not limited to such an embodiment, and the present invention is not limited to such a configuration, shape, material, quantity, numerical value, and the like. Any change, addition, or deletion can be made without departing from the scope of the above. For example, in each embodiment, although the case where the cooling water Wf was used as a primary side fluid (Wf) was shown, cooling solution, cooling steam, cooling air, etc. may be sufficient. Thus, the primary fluid Wf can contain at least one of water, solution, steam, or air, and various media can be used because of the simple shape of the heat exchange cylinder portion 2p. Therefore, the design freedom and versatility from the viewpoint of selecting the primary fluid Wf can be enhanced. Moreover, although the use which pre-cools milked raw milk Ls was shown, heating (heating) is also possible depending on other uses. Therefore, in this case, hot water can be used instead of the cooling water Wf, and water, a solution, steam, air, or the like can be generally used as the primary fluid Wf. Furthermore, the secondary side liquid Ls can apply various liquids including raw milk Ls.

  The liquid heat exchanger 1 according to the present invention includes various types of liquids such as soy sauce and other food liquids, chemicals, oils, coolants, chemical solutions, etc. It can be used for cooling or heating liquids.

  DESCRIPTION OF SYMBOLS 1: Liquid heat exchanger, 2: Cylindrical body part, 2p: Heat exchange cylinder part, 2po: Outer peripheral surface of heat exchange cylinder part, 2pi: Inner peripheral surface of heat exchange cylinder part, 2a: Divided cylinder Body part, 2b: Split cylinder part, 2c: Split cylinder part, 3: Primary fluid treatment part, 3s: Primary supply part, 3e: Primary discharge part, 4: Secondary liquid process part, 4s: Secondary side supply unit, 4e: secondary side discharge unit, Wf: primary side fluid (cooling water), Ls: secondary side liquid (raw milk), Fs: cylindrical shape, Fc: conical shape, Da: axial direction, Dv : Vertical direction, Ds: Spiral direction, Sw: Fluid storage chamber

Claims (6)

  A liquid heat exchanger for exchanging heat between a primary side fluid and a secondary side liquid, a cylindrical body part having at least a part of a heat exchange cylinder part having an outer peripheral surface and an inner peripheral surface, and a primary side supply unit The primary side fluid supplied from the heat exchange cylinder portion has a fluid storage chamber that can contact the entire outer peripheral surface (or inner peripheral surface) of the heat exchange tube portion, and the heat exchanged primary side fluid is the primary side discharge portion. The primary-side fluid treatment unit discharged from the secondary-side liquid and the secondary-side liquid supplied from the secondary-side supply unit flow down from the upper surface of the inner peripheral surface (or outer peripheral surface) of the heat-exchange tube unit, thereby exchanging the heat. A secondary side liquid processing unit configured to be able to contact the entire inner peripheral surface (or outer peripheral surface) of the cylindrical portion and from which the heat-exchanged secondary side liquid is discharged from the secondary side discharge unit. A liquid heat exchanger.   The liquid heat exchanger according to claim 1, wherein the primary side fluid includes at least one of water, a solution, steam, and air.   The liquid heat exchanger according to claim 1, wherein the secondary liquid is milk that has been milked.   The heat exchanger for liquid according to claim 1, 2 or 3, wherein the heat exchange cylinder part in the cylindrical body part is formed in a columnar shape or a conical shape.   The liquid heat exchange according to any one of claims 1 to 4, wherein the cylindrical body portion is configured integrally or by a combination of a plurality of divided cylindrical body portions divided in the axial direction. vessel.   The secondary side supply unit of the secondary side liquid processing unit can supply the secondary side liquid in a vertical direction or in a spiral direction with respect to the inner peripheral surface (or outer peripheral surface) of the heat exchange tube unit. The liquid heat exchanger according to claim 1, wherein the liquid heat exchanger is configured as follows.

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