JP2009047352A - Heat accumulator - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a heat accumulator capable of improving easiness in assembling in setting a center pipe and a straightening vane in a tank body storing a fluid of a high temperature. <P>SOLUTION: In this heat accumulator where the center pipe 12 extending to a position near a tank bottom from a position of a tank inlet 11 on a tank axis is disposed in the tank body 10 storing the fluid of a high temperature, and further the straightening vane covering a clearance between the pipe outer peripheral face of the center pipe 12 and the inner face of the tank body 10 is disposed, the straightening vane has a foldable straightening vane portion 13 having a plurality of straightening holes 13a. The foldable straightening vane 14 is constituted so that the straightening vane portion 13 is reduced toward a projection area smaller than an opening area of the tank inlet 11 when it is folded, and the outer peripheral edge of the vane portion is enlarged to the inner face of the tank body 10, when the straightening vane portion 13 is expanded. <P>COPYRIGHT: (C)2009,JPO&INPIT

Description

  The present invention is applied to a vehicle heat storage system and the like, and relates to a heat storage unit in which a center pipe and a rectifying plate are set in a tank body that stores a high-temperature fluid.

  Conventionally, as a heat accumulator applied to a vehicular heat accumulating system, in a tank body for accumulating high-temperature engine cooling water, for storing and discharging engine cooling water effectively by a center pipe and a rectifying action for suppressing drift What set the baffle plate is known (for example, refer patent document 1).

And in the conventional heat accumulator, the engine cooling water which became high temperature at the time of vehicle travel is taken in into the heat accumulator, and while the vehicle is stopped, the high temperature engine cooling water is kept warm in the heat accumulator. At the next engine start, the high-temperature engine cooling water in the regenerator is sent to the engine and used for immediate warming of the engine.
JP 2003-80929 A

  However, in the conventional heat accumulator, a rectifying plate larger than the opening area of the tank inlet of the tank main body is welded and fixed between the pipe outer peripheral surface of the center pipe and the inner surface of the tank main body by spot welding or the like. Therefore, there was a problem that the assemblability was low when manufacturing the heat accumulator.

  That is, in the case of a conventional heat accumulator, it is necessary to divide the tank body into three parts, etc., weld and fix the current plate to the divided tank, and then align the divided tanks to each other and fix them by brazing or the like is there. In this way, the process of fixing the current plate is necessarily in the middle of the process of manufacturing the tank body.

  The present invention has been made paying attention to the above problem, and provides a heat accumulator that can achieve ease of assembly when setting a center pipe and a current plate in a tank body that stores a high-temperature fluid. Objective.

In order to achieve the above object, according to the present invention, a center pipe extending from the position of the tank inlet to a position close to the tank bottom is disposed on the tank shaft in the tank main body storing the high temperature fluid, and the pipe outer peripheral surface of the center pipe. In the heat accumulator interposing a rectifying plate covering between the inner surface of the tank body,
The rectifying plate has a foldable rectifying plate portion having a plurality of rectifying holes. When the rectifying plate portion is folded, the rectifying plate portion is reduced to a projection area smaller than an opening area of the tank inlet, and the rectifying plate portion is widened. In this case, the outer peripheral end of the plate portion is a foldable rectifying plate that expands to the inner surface of the tank body.

Therefore, in the heat accumulator of the present invention, in the folded state in which the rectifying plate portion of the foldable rectifying plate is reduced to a projection area smaller than the opening area of the tank inlet, the foldable rectifying plate is tanked together with the center pipe from the tank inlet. After inserting into the main body and inserting it into the tank body, widen the folded rectifying plate part so that the outer peripheral edge of the plate part extends to the inner surface of the tank body, and the rectifying plate part is set in the tank body Can do.
In other words, when assembling and manufacturing the heat accumulator, unlike the conventional heat accumulator in which the process of fixing the current plate is always in the middle of the process of manufacturing the tank body, the tank shape is already in the subsequent process of the tank body manufacturing process. A foldable rectifying plate in a folded state can be inserted into the tank body having In addition, since the enlarged rectifying plate portion is set in the tank body simply by performing an operation of expanding the folded rectifying plate portion, a welding operation for fixing the rectifying plate as in the related art is not required.
As a result, when the center pipe and the current plate are set in the tank main body that stores the high-temperature fluid, it is possible to achieve ease of assembly.

  Hereinafter, the best mode for realizing the heat accumulator of the present invention will be described based on Example 1 shown in the drawings.

First, the configuration will be described.
FIG. 1 is an overall view showing an example of a vehicle heat storage system to which the heat storage device A of the first embodiment is applied.
As shown in FIG. 1, the vehicle heat storage system according to the first embodiment includes a heat accumulator A, an engine 1, a radiator 2, a thermostat 3, a control valve 4, a heater core 5, and a water pump 6. ing.

  As shown in FIG. 1, the vehicle heat storage system is an intermediate position of a circuit that connects the engine 1, the radiator 2, the heater core 5, and the heat accumulator A in parallel to each other, and communicates the engine 1 and the heat accumulator A. A control valve 4 is provided at a position branched to the heater core 5, and a water pump 6 is provided at an intermediate position in the circuit circulating through the regenerator A and the heater core 5.

  The heat accumulator A stores high-temperature engine cooling water when the vehicle travels, and supplies the stored high-temperature engine cooling water to the engine 1 when the engine is started. That is, the heat accumulator A is provided as a device for warming up the engine immediately in the vehicle heat storage system.

  The first engine coolant circulation circuit having the engine 1, the radiator 2, and the thermostat 3 closes the thermostat 3 when the engine coolant is cold, promotes the temperature rise of the engine coolant, and the thermostat 3 when the engine coolant is cold. The engine coolant is cooled by heat exchange with the radiator 2.

  The second engine coolant circulation circuit having the engine 1, the control valve 4 and the heater core 5 is configured such that when the air conditioner is activated after the engine is started, the valve position of the control valve 4 is the engine coolant circulation position, and the vehicle interior is heated. In such a case, the temperature adjustment wind is blown into the passenger compartment by heat exchange by the heater core 5.

  The third engine coolant circulation circuit having the engine 1, the control valve 4, the heat accumulator A, and the water pump 6 is configured so that the valve position of the control valve 4 is the engine coolant circulation position when the engine is immediately warmed up or when heat is stored. When the engine immediately warms up, the high-temperature engine cooling water stored in the heat accumulator A is supplied to the engine 1 by the operation of the water pump 6, and the high temperature circulating to the heat accumulator A by the operation of the water pump 6 at the time of heat accumulation. The engine cooling water is stored.

  FIG. 2 is a cross-sectional view showing a state in which the rectifying plate portion of the foldable rectifying plate is folded and arranged in the tank body in the heat accumulator A of the first embodiment. FIG. 3 is a cross-sectional view showing a state where the rectifying plate portion of the folding rectifying plate is opened and set in the tank body in the heat accumulator A of the first embodiment. FIG. 4 is a diagram illustrating a folding umbrella structure of a folding type rectifying plate in the heat accumulator A of the first embodiment. FIGS. 5A and 5B are diagrams illustrating a stopper mechanism having a folding umbrella structure in the heat accumulator A according to the first embodiment. FIG. 5A is a front view of the stopper mechanism, and FIG. 5B is a side view of the stopper mechanism. FIG. 6 is a diagram illustrating an example of a hinge coupling portion with respect to the center pipe of the folding umbrella structure in the heat accumulator A according to the first embodiment. FIG. 7 is a partial perspective view illustrating an example of a rectifying plate portion having a folding umbrella structure in the heat accumulator A according to the first embodiment. FIG. 8 is a diagram illustrating a state where the rectifying plate portion of the folding rectifying plate is folded and inserted from the tank inlet in the heat accumulator A of the first embodiment.

As shown in FIG. 3, the heat accumulator A is a center pipe that extends from the position of the tank inlet 11 to a position close to the tank bottom on the tank shaft in the tank body 10 that stores high-temperature engine cooling water (high-temperature fluid). 12 and a current plate that covers between the pipe outer peripheral surface of the center pipe 12 and the inner surface of the tank body 10 is interposed.
Here, the tank body 10 has a double tank structure including an inner tank 10a, an outer tank 10b, and a vacuum heat insulating layer 10c, and is made of a stainless steel material having excellent corrosion resistance.

  The rectifying plate has a foldable rectifying plate portion 13 having a plurality of rectifying holes 13a. When the rectifying plate portion 13 is folded as shown in FIG. 2, the projection is smaller than the opening area of the tank inlet 11. As shown in FIG. 3, when the current plate portion 13 is expanded, the outer peripheral end of the plate portion is a foldable current plate 14 that expands to the inner surface of the tank body 10.

  As shown in FIGS. 3 and 4, the foldable rectifying plate 14 is provided with an elastic seal material 15 (for example, rubber seal material) along the outer peripheral end of the rectifying plate portion 13, and the rectifying plate portion 13 is expanded. When the elastic seal member 15 is interposed, the outer peripheral end of the rectifying plate portion 13 is kept in close contact with the inner surface of the tank body 10. That is, the elastic sealing material 15 is expanded and deformed by pressing, so that it strongly interferes with the inner surface of the tank body 10. In Example 1, the foldable rectifying plate 14 is a resin molded product.

  As shown in FIGS. 2 to 4, the foldable rectifying plate 14 has an outer pipe 16 that can slide along the outer peripheral surface of the center pipe 12. As shown in FIG. 8, the position of the outer pipe 16 with respect to the center pipe 12 is set to a position where the rectifying plate portion 13 is folded, and the tank is kept in a state where the rectifying plate portion 13 is folded. It is inserted into the tank body 10 together with the center pipe 12 from the inlet 11. Then, as shown in FIG. 2, the folding rectifying plate 14 is inserted into the tank body 10 together with the center pipe 12, and then, as shown in FIG. 3, the outer pipe 16 is pushed upward to be folded. The rectifying plate portion 13 is widened.

  As shown in FIG. 4, the foldable rectifying plate 14 has a so-called foldable umbrella structure including an outer pipe 16, an umbrella frame 17, a rectifying plate portion 13, a push-up connection link 18, and a stopper mechanism 19. It is said.

  As shown in FIG. 4, the outer pipe 16 has a diameter slightly larger than the outer diameter of the center pipe 12 as an inner diameter, and is a short cylindrical pipe that can slide along the outer peripheral surface of the center pipe 12.

  As shown in FIGS. 2 to 4, a plurality of the umbrella bone bodies 17 are arranged radially from the hinge coupling portion 20 with respect to the center pipe 12. Here, the hinge coupling portion 20 is a hinge coupling by insertion fixing if coupled to the center pipe 12 integrally, and a hinge coupling by coupling fixing using a claw or the like if coupled to a separate body from the center pipe 12. As an example of hinge coupling by insertion fixing, as shown in FIG. 6, for example, a neck portion 20 a and an insertion engaging portion 20 b are formed at the distal end portion of the umbrella bone body 17, and a coupling hole portion 20 c formed in the center pipe 12 is formed. It is comprised by inserting the insertion engaging part 20b.

  As shown in FIG. 7, the rectifying plate portion 13 is a foldable resin plate that covers the umbrella bones 17 and 17 adjacent in the circumferential direction and has a plurality of rectifying holes 13 a radially. The folding portion 13b of the rectifying plate portion 13 has a resin hinge structure in which the plate thickness is thinned to give bending properties.

  As shown in FIG. 4, the push-up connecting link 18 connects the hinge coupling portion 21 of the outer pipe 16 and the hinge coupling portion 22 of the umbrella bone body 17. That is, by pushing the outer pipe 16 upward along the center pipe 12, a force in the opening direction is applied to the umbrella bone body 17 via the push-up connection link 18, and a plurality of umbrella bone bodies 17 closed on the inside are provided. The hinge joint 20 is opened outward with the center. As the hinge coupling portions 21 and 22, a bent hinge structure, a spherical joint structure, or the like is applied.

  As shown in FIG. 4, the stopper mechanism 19 is a mechanism that defines a position where the rectifying plate portion 13 is expanded as a fixed position of the outer pipe 16 with respect to the center pipe 12. The stopper mechanism 19 includes an upper end stopper plate 19a provided on the center pipe 12 that defines the upper end fixing position of the outer pipe 16, and a lower end stopper plate 19b provided on the center pipe 12 that defines the lower end fixing position of the outer pipe 16. Is done. As shown in FIG. 5, the lower end stopper plate 19b is retracted into the center pipe 12 due to the bending of the spring plate 19c when the outer pipe 16 is moved upward.

Next, the operation will be described.
Hereinafter, the operation of the heat accumulator of Example 1 is referred to as “the engine immediate warming operation in the vehicle heat accumulating system”, “rectifying operation in the heat accumulator”, “the assembling operation of the folding rectifying plate at the time of manufacturing the heat accumulator”, “gap The description will be divided into the “preventing action of corrosion”.

[Immediate engine warming in vehicle heat storage system]
FIG. 9 is an operation explanatory diagram for explaining the engine immediate warming operation in the vehicle heat storage system, where (a) shows the flow of engine cooling water when the engine is immediately warmed immediately after the engine is started, and (b) is after the engine is warmed immediately. Shows the flow of engine cooling water at the time of heating request, (c) shows the flow of engine cooling water during heat storage by stable running, and (d) shows the flow of engine cooling water in the heat storage state when the engine is stopped .

  In this vehicle heat storage system, as shown in FIG. 9 (c), when the water pump 6 is operated during running (stable region), the second engine coolant circulation circuit and the third engine coolant circulation circuit are operated. The heat storage mode in which the engine coolant is circulated is taken, and the engine coolant that has become hot is taken into the heat accumulator A.

  And as shown in FIG.9 (d), a high temperature engine cooling water is heat-reserved and stored in the thermal storage A at the time of an engine stop. In this heat storage maintenance mode, since the tank body 10 has a double tank structure having the vacuum heat insulating layer 10c, the temperature drop of the engine coolant in the tank body 10 is suppressed for a long time.

  Then, immediately after the next engine start, as shown in FIG. 9 (a), the control valve 4 is switched to the side where the engine 1 and the heat accumulator A are communicated, and the water pump 6 is operated, whereby the heat accumulator A Is circulated in a closed circuit (third engine coolant circulation circuit) of control valve 4 → engine 1 → water pump 6 → heat accumulator A. In the engine immediate warming mode, the high-temperature engine coolant in the regenerator A is sent to the engine 1 and the warming up of the engine 1 is promoted.

  When there is a heating request immediately after the engine is warmed up, as shown in FIG. 9 (b), the control valve 4 is switched to the side where the engine 1 and the heater core 5 communicate with each other, so that the engine cooling water is supplied to the control valve 4 → Circulation is performed in a closed circuit (second engine coolant circulation circuit) of heater core 5 → engine 1. In this heating mode, the engine cooling water whose temperature has risen due to the combustion heat in the engine 1 is sent to the heater core 5 in addition to the engine immediate warming, so that the vehicle interior heating can be made effective with good response.

[Rectifying action in the regenerator]
The rectifying action of the engine coolant by the heat accumulator A in the heat storage mode (FIG. 9 (c)) by the vehicle heat storage system will be described.
When hot engine coolant from the engine 1 flows upward from the outer peripheral gap t (see FIG. 3) between the tank inlet 11 of the heat accumulator A and the center pipe 12, the engine coolant that has flowed flows into the rectifying plate 14. The engine cooling water received and received by the plate portion 13 expands along the rectifying plate portion 13 and escapes upward from the plurality of rectifying holes 13a of the rectifying plate portion 13 while maintaining flow rate uniformity.
That is, the high-temperature engine cooling water that has flowed in the low-temperature engine cooling water that has already been stored has been shown to suppress the uneven flow that the cooling water flowing in by the foldable rectifying plate 14 is unevenly distributed in a part of the passage area. The engine coolant that is pushed up is discharged from the upper end opening 12a (see FIG. 3) of the center pipe 12 downward.
As a result, the hot engine coolant that has flowed in is prevented from flowing out of the center pipe 12 as a shortcut, and the hot engine coolant can be effectively stored in the tank body 10 as heat storage energy.

The rectifying action of the engine coolant by the heat accumulator A in the engine immediate warming mode (FIG. 9 (a)) by the vehicle heat storage system will be described.
When low-temperature engine cooling water flows from the center pipe 12 of the heat accumulator A, the engine cooling water that has flowed in is received by the rectifying plate portion 13 of the folding rectifying plate 14, and the received engine cooling water passes along the rectifying plate portion 13. It expands to the lower side while maintaining flow rate uniformity from the plurality of rectifying holes 13a of the rectifying plate portion 13.
That is, the cooling water flowing in by the folding rectifying plate 14 has a rectifying action that suppresses the uneven flow that is unevenly distributed in a part of the passage region, and the high-temperature engine cooling water that has been stored and kept warm is cooled by the low-temperature engine cooling that has flowed in. The high-temperature engine cooling water pushed down by water is caused to flow toward the engine 1 from the outer peripheral gap t (see FIG. 3) between the tank inlet 11 and the center pipe 12.
This prevents the low-temperature engine coolant that has flowed in from flowing out of the outer peripheral gap t between the tank inlet 11 and the center pipe 12 to the engine 1 as a shortcut, and effectively stores the heat storage energy stored as the high-temperature engine coolant. 1 can be given.

[Assembly of folding rectifier plate during manufacture of regenerator]
In the heat accumulator A of the first embodiment, the position of the outer pipe 16 with respect to the center pipe 12 is set to a position where the rectifying plate portion 13 of the foldable rectifying plate 14 is folded as shown in FIG. The tank 13 is inserted into the tank body 10 together with the center pipe 12 from the tank inlet 11 while maintaining the folded state of the portion 13. Then, as shown in FIG. 2, the foldable rectifying plate 14 is inserted into the tank body 10 together with the center pipe 12. Thereafter, by pushing up the outer pipe 16 of the inserted foldable rectifying plate 14, as shown in FIG. 3, the folded rectifying plate portion 13 is expanded as if an umbrella is opened. By the above assembling operation, the outer peripheral end of the plate portion of the rectifying plate portion 13 is expanded to the inner surface of the tank main body 10, and the rectifying plate portion 13 can be set in the tank main body 10.

  That is, during assembly manufacture of the heat accumulator A, unlike the conventional heat accumulator in which the process of fixing the rectifying plate is necessarily in the middle of the process of manufacturing the tank main body, in the subsequent process of the manufacturing process of the tank main body 10, The foldable rectifying plate 14 in a folded state can be inserted into the tank body 10 having a tank shape. In addition, since the rectifying plate portion 13 expanded by simply performing an operation of expanding the rectifying plate portion 13 in the folded state is set in the tank body 10, a welding operation for fixing the rectifying plate as in the related art is not required.

[Prevention of crevice corrosion]
In the conventional structure in which the current plate is fixed to the inner surface of the tank body by welding, a minute gap is generated between the inner surface of the tank body and the current plate, and water corrosive components stay in this minute gap portion, The concentration of the corrosive component staying with the passage of time has increased, and the occurrence of crevice corrosion that corrosion proceeds from this portion has been a problem.

  On the other hand, in the heat accumulator A of Example 1, the foldable rectifying plate 14 is provided with an elastic sealing material 15 along the outer peripheral end of the rectifying plate portion 13 and is elastic when the rectifying plate portion 13 is expanded. The seal member 15 is interposed to keep the outer peripheral end of the rectifying plate portion 13 in close contact with the inner surface of the tank body 10.

  Therefore, the elastic sealing material 15 is expanded and deformed by pressing, so that it strongly interferes with the inner surface of the tank body 10 and the gap leakage of the flow of engine cooling water is prevented. The occurrence of corrosion can be reliably prevented.

Next, the effect will be described.
In the heat accumulator A of Example 1, the effects listed below can be obtained.

  (1) A center pipe 12 extending from the position of the tank inlet 11 to a position close to the tank bottom is disposed on the tank shaft in the tank body 10 storing the high-temperature fluid, and the outer peripheral surface of the center pipe 12 and the tank body In the heat accumulator having a rectifying plate interposed between the inner surface and the rectifying plate, the rectifying plate has a foldable rectifying plate portion 13 having a plurality of rectifying holes 13a, and the rectifying plate portion 13 is folded. When the rectifying plate portion 13 is expanded to a projection area smaller than the opening area of the tank inlet 11 and the rectifying plate portion 13 is widened, the foldable rectifying plate 14 expands to the inner surface of the tank main body 10. When the center pipe 12 and the current plate are set in the tank main body 10 that stores the fluid, it is possible to achieve ease of assembly.

  (2) The foldable rectifying plate 14 is provided with an elastic sealing material 15 along the outer peripheral end of the rectifying plate portion 13, and when the rectifying plate portion 13 is expanded, the tank main body is interposed by the elastic sealing material 15. Since the outer peripheral end of the rectifying plate portion 13 is kept in close contact with the inner surface of the fluid 10, it is possible to reliably prevent the occurrence of crevice corrosion due to the retention of the corrosion components contained in the fluid due to the fluid flow gap leakage preventing action.

  (3) The foldable rectifying plate 14 has an outer pipe 16 slidable along the pipe outer peripheral surface of the center pipe 12, and the position of the outer pipe 16 with respect to the center pipe 12 is determined by the rectifying plate portion 13. With the folded state of the rectifying plate portion 13 held in the folded state, the tank inlet 11 is inserted into the tank body 10 together with the center pipe 12, and after being inserted into the tank body 10, When the folding rectifying plate 14 is assembled to the tank body 10 in order to expand the folded rectifying plate portion 13 by pushing the outer pipe 16 upward, a push-up operation tool or the like is pushed from the gap space of the tank inlet 11. It is possible to widen the rectifying plate part 13 that is folded by a simple operation that simply pushes up the outer pipe 16 wear.

  (4) The foldable rectifying plate 14 includes a plurality of outer pipes 16 slidable along the pipe outer peripheral surface of the center pipe 12, and a plurality of umbrella frames 17 radially disposed from the hinge joints 20 to the center pipe 12. And a foldable rectifying plate portion 13 that covers the umbrella bone bodies 17, 17 adjacent to each other in the circumferential direction and has a plurality of rectifying holes 13 a, a hinge coupling portion 21 of the outer pipe 16, and a hinge coupling of the umbrella bone body 17 A folding umbrella structure having a push-up connecting link 18 for connecting the portion 22 and a stopper mechanism 19 (19a, 19b) for defining a position where the rectifying plate portion 13 is widened as a fixed position of the outer pipe 16 with respect to the center pipe 12. Therefore, the reduction ratio of the projected area of the rectifying plate 13 when folded is set higher than the projected area of the rectifying plate 13 when expanded. The opening area of the tank inlet 11 can be kept small while ensuring the heat storage volume of the tank body 10.

  (5) The tank body 10 stores engine cooling water that flows upward from the outer peripheral gap t between the tank inlet 11 and the center pipe 12 when the vehicle travels, and stores the high-temperature engine stored when the engine is started. Since the cooling water is supplied to the engine 1 from the outer peripheral gap t between the tank inlet 11 and the center pipe 12, the heat accumulator A can be effectively used as an engine immediate warming device in the vehicle heat storage system.

  The heat accumulator of the present invention has been described based on the first embodiment. However, the specific configuration is not limited to the first embodiment, and the gist of the invention according to each claim of the claims is described. Unless it deviates, design changes and additions are allowed.

  In Example 1, the example which provided the elastic sealing material along the outer peripheral end of the baffle plate part was shown as a foldable baffle plate. However, for example, a setting may be made in which a fluid passage that does not cause crevice corrosion is interposed between the outer peripheral end of the rectifying plate portion and the inner surface of the tank body. Further, for example, a partial elastic support structure may be used such that an elastic sealing material is provided only at the outer end of the umbrella frame, and other portions may be set with a fluid passage interposed therebetween.

  Example 1 shows an example in which a folded rectifying plate has an outer pipe slidable along the outer peripheral surface of the center pipe as a foldable rectifying plate, and the folded rectifying plate is expanded by pushing the outer pipe upward. It was. However, for example, a folding type rectifying plate that expands the folded rectifying plate portion by pulling the outer pipe downward or rotating the outer pipe to change the screwing position may be used. Furthermore, it is good also as a foldable rectification | straightening board which sends air, high pressure water etc., and spreads the folded rectification | straightening board part.

  In the first embodiment, the folding type rectifying plate has a folding umbrella structure. However, the folding type rectifying plate may be configured by a structure other than the folding umbrella structure. In short, the rectifying plate has a foldable rectifying plate portion having a plurality of rectifying holes, and when the rectifying plate portion is folded, the rectifying plate portion is reduced to a projection area smaller than the opening area of the tank inlet, and the rectifying plate portion is widened. As long as the outer peripheral end of the plate portion is a foldable rectifying plate that expands to the inner surface of the tank body, the specific configuration is not limited to that of the first embodiment.

  In Example 1, although the example which applied the thermal storage device to the thermal storage system for vehicles was shown, the thermal storage device of this invention is various fields, such as a thermal storage system for houses, a thermal storage system for factories, and a thermal storage system for establishments other than a vehicle. It can also be applied to other heat storage systems. It can also be applied to a heat accumulator that stores a high-temperature fluid other than water. In short, the present invention can be applied to a heat accumulator in which a center pipe and a rectifying plate are arranged in a tank body that stores a high-temperature fluid.

1 is an overall view showing an example of a vehicle heat storage system to which a heat accumulator A of Example 1 is applied. It is sectional drawing which shows the state which folded and arrange | positioned the rectification | straightening board part of a folding-type rectification | straightening board in the tank main body in the thermal storage A of Example 1. FIG. It is sectional drawing which shows the state which opened the rectification | straightening board part of the folding-type rectification | straightening board in the thermal storage A of Example 1, and was set in the tank main body. It is a figure which shows the folding umbrella structure of a folding type rectifier plate in the thermal accumulator A of Example 1. FIG. It is a figure which shows the stopper mechanism of a folding umbrella structure in the thermal accumulator A of Example 1, (a) shows the front view of a stopper mechanism, (b) shows the side view of a stopper mechanism. It is a figure which shows an example of the hinge coupling | bond part with respect to the center pipe of a folding umbrella structure in the thermal accumulator A of Example 1. FIG. It is a partial perspective view which shows an example of the baffle plate part of a folding umbrella structure in the thermal accumulator A of Example 1. FIG. It is a figure which shows the state which folds the rectification | straightening board part of a folding-type rectification | straightening board in the thermal storage A of Example 1, and inserts from a tank inlet. It is an action explanatory view explaining an engine immediate warming action in a vehicle heat storage system, (a) shows a flow of engine cooling water at the time of engine warming immediately after engine start, and (b) is a heating request after engine warming immediately. (C) shows the flow of engine cooling water during heat storage by stable running, and (d) shows the flow of engine cooling water in the heat storage state when the engine is stopped.

Explanation of symbols

A Heat storage unit 1 Engine 2 Radiator 3 Thermostat 4 Control valve 5 Heater core 6 Water pump 10 Tank body 11 Tank inlet 12 Center pipe 13 Rectifier plate part 13a Rectifier hole 14 Folding type rectifier plate 15 Elastic seal material 16 Outer pipe 17 Umbrella frame 18 Push up Connecting link 19 Stopper mechanism 19a Upper end stopper plate 19b Lower end stopper plate 20 Hinge coupling portion 21 Hinge coupling portion 22 Hinge coupling portion

Claims (5)

A center pipe that extends from the position of the tank inlet to a position close to the tank bottom is disposed on the tank shaft in the tank body that stores the high-temperature fluid, and covers between the pipe outer peripheral surface of the center pipe and the inner surface of the tank body. In a heat accumulator with a baffle plate,
The rectifying plate has a foldable rectifying plate portion having a plurality of rectifying holes. When the rectifying plate portion is folded, the rectifying plate portion is reduced to a projection area smaller than an opening area of the tank inlet, and the rectifying plate portion is widened. When this is the case, the heat accumulator is a foldable rectifying plate in which the outer peripheral end of the plate portion expands to the inner surface of the tank body. The regenerator according to claim 1,
The foldable rectifying plate is provided with an elastic seal material along an outer peripheral end of the rectifying plate portion, and when the rectifying plate portion is spread, the rectifying plate portion of the rectifying plate portion with respect to the inner surface of the tank body is interposed by the elastic seal material. A heat accumulator characterized by maintaining close contact with the outer peripheral edge. In the heat accumulator according to claim 1 or claim 2,
The foldable rectifying plate has an outer pipe slidable along the outer peripheral surface of the center pipe, and the position of the outer pipe with respect to the center pipe is a position where the rectifying plate portion is folded, With the folded state of the rectifying plate portion maintained, it is inserted into the tank main body together with the center pipe from the tank inlet, and after being inserted into the tank main body, the outer pipe is pushed upward to be folded up. A heat accumulator characterized by expanding the current plate part. The regenerator according to any one of claims 1 to 3,
The foldable rectifying plate includes an outer pipe that is slidable along an outer peripheral surface of the center pipe, a plurality of umbrella bones that are radially arranged from hinge coupling portions to the center pipe, and umbrella bones that are adjacent in the circumferential direction. A foldable rectifying plate portion that covers the body and has a plurality of rectifying holes, a push-up connecting link that connects the hinge connecting portion of the outer pipe and the hinge connecting portion of the umbrella body, and a position where the rectifying plate portion is expanded And a stopper mechanism that defines a fixed position of the outer pipe with respect to the center pipe. The heat accumulator according to any one of claims 1 to 4,
The tank body stores engine cooling water that flows upward from an outer peripheral gap between the tank inlet and the center pipe when the vehicle travels, and the stored high-temperature engine cooling water is stored in the tank inlet when the engine is started. And a heat accumulator which is supplied to the engine from the outer peripheral gap of the center pipe.

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