JP4276184B2 - Dissolving heat pump hot water production system - Google Patents

Description

  The present invention recovers atmospheric heat or the like using cold heat obtained by an endothermic phenomenon that occurs when a specific solute having a heat source as a main driving energy dissolves in a specific solvent, The present invention relates to a heat pump hot water manufacturing apparatus that is a highly efficient hot water manufacturing apparatus by outputting the sum of recovered heat as hot water.

Heat pump hot water production equipment that uses a heat source as the main driving energy may be one that uses an absorption refrigeration cycle that uses ammonia or lithium bromide, but ammonia is a flammable gas and a hazardous substance for the human body. There are many restrictions on use, and none has been put to practical use in general household applications.

Absorption heat pumps using lithium bromide have a relatively high cooling temperature and are partly put into practical use in industrial fields, but none have been put into practical use in general household use.

In addition, although a method using a refrigeration cycle using heat of dissolution has been proposed, in order to continuously produce hot water with the dissolution type hot water production apparatus, regeneration for separation and regeneration of the solution and solvent is performed. Condensation process to condense the process and solvent vapor, crystallization process to recrystallize the solute, dissolution process to dissolve the solute crystals in the solvent, etc. Solute crystals are deposited and deposited in the pipes between the processes at the time of the outside stop and the flow path is blocked, and a crystal dissolution work is required for restarting, which has not yet been put into practical use.
Japanese Patent Publication No. 1-26462

  The main problems hindering the practical use of the conventional dissolving hot water production apparatus described above are the stability of the solute crystals and the crystal slurry comprising the solute crystals and the solution between the steps in the melting hot water production method. This is a problem that the solute crystals block the pipe line between the processes when ensuring proper transportation and abnormal stoppage, etc., and the present invention solves the above problems and utilizes small heat of dissolution on a general household scale. The purpose is to put the high-efficiency heat pump hot water production apparatus into practical use.

In the present invention, a part or all of the regenerator part, the crystallizer part, and the dissolver part constituting the melting type heat pump hot water production apparatus are sequentially and integrally arranged downward in the vertical direction, thereby narrowing The above-mentioned object is achieved by minimizing a simple flow path portion and transporting solute crystals mechanically and smoothly with a scraper, a scraper, and a press extruder attached to a central rotating shaft. In order to increase efficiency, the use of the ejector 33 and / or the multi-effect can ejectors 32a, 32b, and 32c promotes evaporation in the regenerator and increases the utilization efficiency of the regenerated energy.

Since the present invention is configured and arranged as described above, the following effects can be obtained.
By arranging a part or all of the regenerator unit, which is a main component of the apparatus of the present invention, a crystallizer unit and a dissolver unit in order from the top in the vertical direction, each unit unit and between each unit unit The required flow path is configured in the shortest and vertical direction so that the precipitated solute crystals are freely settled and deposited using the internal heat conduction by placing it close to the regenerator part that is heated to a high temperature during startup. Solute crystals are dissolved again at an elevated temperature and eliminated.

  That is, when the apparatus of the present invention is abnormally stopped, solute crystals are deposited and problems such as channel blockage are likely to occur in the regenerator unit or in the channel from the partial component to the crystallizer unit and in the unit. Within the club. By arranging the regenerator part or the partial component part and the crystallizer part integrally in the vertical direction, the flow path between the regenerator part or the partial component part and the crystallizer part is minimized in the vertical direction. Can be configured to a limited length. As a result, the solute crystal group that precipitates in the flow path at the time of an abnormal stop settles and moves in the direction of the bottom of the crystallizer section, and can be reduced to a level that does not hinder blockage in the pipe line. Further, as the temperature of the regenerator unit heated by the external heat source rises at the time of starting the apparatus of the present invention, the temperature of the solute crystal deposited in each part adjacent to the regenerator unit also increases due to heat transfer. As a result of re-dissolution of the solution, troubles of blockage of the channel due to solute crystals do not occur.

In addition, the crystallizer part and the dissolver part can be sequentially moved by a scraper plate 69 or a spiral scraper 131, a scraper plate 70, and a press extruder 73 attached to the rotary shaft 68, and abnormal precipitation of solute crystals. Operation is possible without causing the system to stop functioning.
By using the ejector 33 and / or the multi-effect can ejectors 32a, 32b, 32c, the generation of solvent vapor in the low-temperature regenerator can be promoted, and the thermal efficiency can be improved.

A part of the regenerator part, the crystallizer part, and the dissolver part constituting the heat pump hot water production apparatus using the heat of dissolution are sequentially and integrally arranged downward in the vertical direction, and the center part. The solvent crystal is moved mechanically by the scraper plate 69 or the spiral scraper 131, the scraper plate 70, and the squeezing extruder 73 driven by the rotating shaft 68 disposed in Stable operation of the device can be realized.

High-efficiency hot water production is performed by a heat pump operation in which atmospheric heat and warm exhaust heat are taken into the apparatus using a low-temperature solution generated in the dissolver as a cooling medium. For this purpose, the apparatus is configured so that the flow of clean water flowing through the apparatus flows in the order in which the heat of crystal precipitation is most utilized.
The ejector is also used to promote the evaporation of the solvent vapor in the low temperature regenerator and improve the thermal efficiency.
In addition, the press extruder minimizes the transfer of mother liquor associated with the solute crystals to the dissolver.

  Hereinafter, an embodiment of the present invention will be described with reference to FIG. Note that potassium thiocyanate is used as a solute and water is used as a solvent, and for the sake of convenience of explanation, it may be simply expressed as a solute or a solvent. In addition, when it is simply referred to as a solvent, it is a liquid solvent, but in the case of a gas-liquid mixed phase in a pipe or a container, it may be collectively referred to as a solvent. When dissolved, the solute may be a component in the solution in the form of solid crystals.

FIG. 1 shows an embodiment of the apparatus of the present invention, which is integrally formed as a whole in a cylindrical shape, and is integrally arranged from above at a regenerator part, a crystallizer part, a dissolver part, and an upper outer peripheral part. A vertical section of the regenerator part, a condenser 44 arranged separately and connected by a connecting pipe, etc., a supplementary solvent storage tank 26, a combustion gas generator 11 as a supply device for an external heating source of the regenerator part, and a combustion gas Combustion gas flow path 12 for heating the return solution by heat exchange, external heat exchange device 64, low temperature solution circulation pump 63, solvent for transferring the solvent stored in the lower space 15d of the condenser 44 into the dissolver section Solvent transfer pump 62, ejector 33, gas-liquid separator 52a that allows only gas to pass through and shuts off the liquid, and overpressure vapor diffusion valve to open the atmosphere when the pressure in the regenerator exceeds the set pressure 14. To prevent the return solution from the dissolver from entering the crystallizer A vertical sectional view of the upflow blocking plate 75, the connecting flange outer peripheral portions 19a, 19b, 19c and the like, as well as the arrangement and connecting pipes of the associated devices and devices are shown.

2 is an upper lid of the regenerator unit, 3 is an outer peripheral wall of the regenerator unit, 4 is an inner peripheral wall of the regenerator unit, and 5 is a partition plate at the bottom of the regenerator unit, and a hollow cylindrical space surrounded by these is the main part of the regenerator unit It is.

The regenerator part bottom partition plate 5 and the lower part of the regenerator part outer peripheral wall 3 have gaps 31 partially or entirely, and the solution can be moved. In addition, the upper part of the inner peripheral wall 4 of the regenerator part has a space 15a partially or entirely between the upper part of the regenerator part upper cover 2 disposed at the upper part, and the high-temperature concentrated solution in the regenerator part exceeds the space 15a. Overflows to the overflow solution downcomer 6 and flows down to the crystallizer part integrally disposed at the bottom. Further, the space 15a is configured to be a space where the high-temperature solvent vapor generated from the normal liquid level 9 in the regenerator part can freely move.

  The regenerator unit top cover 2 and the low temperature regenerator unit top cover 18 are integrally joined and joined to the low temperature regenerator unit outer peripheral wall 17 by flange joining, so that it can be easily attached and detached. A combustion gas generator 11 for generating combustion gas for a heat source and a regenerator part solution temperature controller 10 for controlling the solution temperature are arranged on the upper lids 2 and 18, and the output of the combustion gas generator 11 is adjusted. I do. The combustion gas is exhausted from the combustion gas discharge pipe 13 through the combustion gas passage 12. Thereby, the solution in the regenerator part is heated to keep the solution temperature optimal. Further, by detecting an abnormal temperature rise, it is possible to prevent idling.

Further, the high temperature solvent vapor generated from the regenerator part is taken out from the high temperature solvent vapor outlet 7 and injected into the drive vapor inlet 34 of the ejector 33 via the pipe line, and the temperature of the solvent slightly out of the low temperature regenerator part solvent vapor outlet 25 is increased. The low solvent vapor is sucked from the suction vapor port 35 of the ejector 33 through the gas-liquid separator 52a to promote the evaporation of the solvent vapor in the low temperature regenerator.

Slightly low-temperature solvent vapor discharged from the vapor discharge port 36 of the ejector 33 is injected into the cell side of the high-temperature water production heat exchanger 38 and flows through the heat exchange pipe 45b of the high-temperature water production heat exchanger 38. After heating and heating the clean water, it is injected into the internal flow path 22 at the upper end of the spiral flow path heat exchanger 20 via the attached pipe line, and the lower end of the spiral flow path heat exchanger 20 The liquid is discharged from the internal flow path 22 and further flows into the condenser 44 from the solvent inlet 51 via the connecting pipe 88b.
A hollow cylindrical space constituted by the outer wall 17 of the low temperature regenerator part, the upper cover 18 of the low temperature regenerator, and the spiral flow path heat exchanger 20 is referred to as a low temperature regenerator part. The low temperature regenerator top cover 18 and the spiral flow path heat exchanger 20 have a space 15b in part or in whole so that the solvent vapor generated from the normal liquid level 23 in the low temperature regenerator part can move.

  Further, the regenerator unit upper lid 2 is provided with a solute inlet 8 for replenishing the solute, and is usually sealed with a lid. In addition, a liquid level adjusting device 24 for properly holding the normal liquid level 23 in the low temperature regenerator unit is disposed on the low temperature regenerator unit upper lid 18. When the normal liquid level 23 in the low-temperature regenerator part is abnormally lowered, it is detected by a liquid level sensor using an electrode or the like, and the electric valve 27 of the replenishing solvent storage tank 26 is opened to open the condenser 44 and the solvent transfer pump 62. Then, the solvent is replenished to raise the liquid level in the low-temperature regenerator part to the vicinity of the normal liquid level 23 in the low-temperature regenerator part.

  In order to keep the pressure in the regenerator part properly, an overpressure steam diffusion valve 14 is provided, and when the pressure in the regenerator part exceeds the set pressure, the solvent vapor is condensed with the overpressure vapor diffusion valve 14 from the high temperature solvent vapor outlet 7. It dissipates into the atmosphere via the open air pipe 49 via the vessel 44.

  A rotating shaft 68 and a rotating shaft driving device 67 for driving the rotating shaft 68 are fixedly attached to the regenerator upper lid 2. A cylindrical water discharge pipe 77 is disposed in the immediate vicinity, and a cylindrical water discharge pipe 80 is integrally disposed on the outer periphery of the cylindrical water discharge pipe 77 and is in close contact with the regenerator top cover 2. Connecting.

A disk in which a rotating shaft 68 passes through a central portion disposed horizontally in contact with the lower end of the cylindrical water-falling pipe 77 and the cylindrical water-rising pipe 80 and the upper end portion of the outer peripheral portion of the crystallizer spiral-shaped pipe 86. The space constituted by the crystallizer part upper lid 87 and the crystallizer part outer peripheral part helical pipe 86 configured in the shape of a hollow cylindrical wall is called a crystallizer part. The central part of the crystallizer part is also provided with a spiral pipe 85 in the central part of the crystallizer part, which is also configured in a cylindrical shape, and a solute crystal scraping plate 69 rotated by a rotary shaft 68 is placed in the central part of the crystallizer part. The solute crystals arranged near the inner peripheral portion of the spiral pipe 85 and attached to the inner peripheral surface of the spiral pipe 85 in the center of the crystallizer part are scraped off.

The water supplied from the water inlet 60a of the condenser 44 enters the cylindrical water downcomer pipe 77 via the water outlet 61a and the connecting pipe 88c via the condenser heat exchange pipe 45a and enters the connecting pipe. It flows downward while swirling in the spiral pipe 85 in the central part of the crystallizer part via 88f, and upward while swirling in the spiral pipe 86 in the outer periphery of the crystallizer part via the connecting pipe 88g. The flow passes through the connecting pipe 88h and the cylindrical water riser pipe 80 in this order to flow into the heat exchanger 38 for producing high temperature water to become high temperature water, which is taken out from the high temperature water outlet 40 and used.

A space constituted by the dissolver part upper conical partition plate 93, the dissolver part outer peripheral wall 95 and the dissolver part bottom plate 94 is referred to as a dissolver part. A surplus solute crystal storage part 96 in which surplus solute crystals stay is disposed at the bottom of the dissolver part. Further, a configuration is adopted in which normal atmospheric heat is taken into the system by the low-temperature solution circulation pump 63 and the external heat exchange device 64.

A pressing extruder 73 attached to the lower end portion of the rotating shaft 68 and an upflow shielding board 75 for shielding the upflow of the return solution are arranged.
Further, support columns 98e and 98f may be arranged to fix the upper conical partition plate 93 as required. The columns 98a, 98b, 98c, and 98d may be arranged to fix the conical tray 71 and the conical descending pipe 74, respectively.

Further, an antifreezing device shall be provided as necessary. As a heating method of the return solvent in the regenerator unit, the return solvent may be taken out by a pipe line, heated to be heated outside the regenerator part, and refluxed again into the regenerator part via the pipe line.
As the heat source for heating in the low temperature regenerator section, combustion exhaust gas and / or exhaust steam can be used.

  One embodiment of the present invention will be described with reference to FIGS. In this case, potassium thiocyanate is used as a solute and water is used as a solvent.

  FIG. 2 shows one embodiment where the regenerator is external. 115 is an external regenerator solution heating concentrator having a cylindrical shape, and a low temperature regenerative solution downcomer 114 for injecting a low temperature regenerative solution into the center of the bottom is arranged from top to bottom. When the low temperature regenerative solution transported by the low temperature regenerative solution transport pump 111 from the low temperature regenerator is externally heated by the premixed gas combustor 116, boiling occurs inside the external regenerator solution heating concentrator 115. Since the boiling point is determined according to the degree of concentration, the motor-operated valve 132a is opened and only the solution is bypassed and refluxed until the boiling point indicating the required concentration is reached. When it is detected that the boiling point rises as the concentration increases and the external regenerator temperature detector 113b reaches the required boiling point, the motor-operated valve 132a is closed and the concentrated solution is injected into the gas-liquid separator 145 together with the solvent vapor.

  The solvent vapor separated by the normal gas-liquid separator mechanism provided in the gas-liquid separator 145 is sucked from the intake steam inlet 35 through the drive steam inlet 34 and the steam discharge port of the ejector 33 in order, and the low temperature of the low temperature regenerator Together with the solvent vapor generated from the normal liquid level 23 inside the regenerator, it is injected into the upper part of the spiral flow path heat exchanger 20. The decompression by the suction force of the ejector 33 evaporates the low-temperature regenerator, thereby increasing the energy efficiency of the regeneration and making the apparatus compact by combining the extraction of the solvent vapor from the low-temperature regenerator and the transport device to the condenser 44.

  The concentrated solution separated in the gas-liquid separator 145 is continuously injected into the regeneration solution channel 148a via the float valve 122a. The concentrated solution thus injected rises in the regeneration solution channel 148b while being cooled by the cooling water of the clean water, and reaches the upper part of the regeneration solution channel 148c.

Inside the regeneration solution channel 148c, the heat transfer areas of the helical water heat exchangers 126a and 126b are configured so that the cooling proceeds until solute recrystallization occurs. The generated solute crystals are transported vertically downward by a spiral scraper. The downward flow generated at this time promotes the upward flow in the regeneration solution channel 148b.

  When the solvent vapor evaporates from the open air pipe 49 provided open to the atmosphere at the upper end of the condenser 44 and the normal liquid level 140 in the condenser decreases to the solvent replenishment start liquid level 141 in the condenser, the replenishing solvent storage tank The solvent in 26 flows out in place of the gas, and the solvent liquid level is not lowered below the solvent replenishment start liquid level 141 in the condenser. The solvent in the replenishing solvent storage tank 26 is replenished periodically. When refilling is forgotten, it is notified by the liquid level detector 133b.

By arranging the regenerator part outside, the maintenance becomes easy and the structure of the main body can be simplified and the volume efficiency is improved.
The external heat source may use steam or exhaust.

In addition, atmospheric heat and low-temperature exhaust heat are taken into the system via the external heat exchanger 64 to increase heating efficiency as a heat pump.
Further, the cooling heat of the external heat exchanger 64 can be used for cooling in a room or a warehouse.

When the solution is corrosive, various types of valves can use materials that can operate the valve indirectly with the force of a magnet. Non-metallic materials such as resin and plastic can also be used depending on the characteristics.

Water can be used as a solvent with potassium thiocyanate as a solute. In this case, aluminum and / or its alloy can be used.

  The water supply of the present invention can be circulated and used as a refrigerator while being cooled by a cooling tower or a radiator.

  An embodiment of the present invention will be described with reference to FIG. In this case, potassium thiocyanate is used as a solute and water is used as a solvent.

  FIG. 3 shows one embodiment where the regenerator is external. 26a is a replenishment solvent storage tank, and when the gas-liquid interface in the external regenerator is lowered to the solvent replenishment start liquid level 142 in the external regenerator, gas flows into the replenishment solvent storage tank 26a, and a solvent corresponding to the amount of inflow of the gas is generated. It flows according to gravity into the external regenerator via the on-off valve 160a that is opened during normal operation. As a result, the gas-liquid interface in the external regenerator can be maintained at or above the solvent replenishment start liquid level 142 in the external regenerator at any time, and the external regenerator can be prevented from being blown.

  Reference numeral 26b denotes a replenishing solvent storage tank. When the gas-liquid interface in the condenser 44 is lowered to the in-condenser solvent replenishment starting liquid level 141, gas flows into the replenishing solvent storage tank 26b, and a solvent corresponding to the amount of the gas flowing in is supplied. It flows according to gravity into the condenser 44 via the on-off valve 160b that is opened during normal operation. In addition, the solvent replenishment start liquid level 141 in the condenser is located at a position lower than the normal liquid level 140 in the condenser and as high as possible within the range where the wave of the normal liquid level 140 in the condenser does not affect. And

As a result, the liquid level of the solvent in the condenser 44 can be kept high, so that when the condensed solvent starts to be injected into the condenser 44 at the start-up of the apparatus, the liquid level of the condensed solvent in the condenser rises and communicates. Solute that is always stored in the surplus crystal storage unit 96 in the dissolver unit, where the solvent transfer pump 62 promptly injects the condensed solvent through the pipeline 125g and the gas-liquid separator 161 in sequence. Can immediately start generation of cold heat accompanying dissolution.

An embodiment of the present invention will be described with reference to FIGS. In this case, potassium thiocyanate is used as a solute and water is used as a solvent.

FIG. 4 is a system flow diagram for illustrating an embodiment in which a multi-effect can system is used in the low-temperature regenerator section, and some components not directly related are omitted for the sake of simplicity of explanation. FIG. 5 is a horizontal sectional view of the system flow diagram of the multi-effect can system shown in FIG. 4, and some components not directly related are omitted for simplicity of explanation.
Further, in the present embodiment, the configuration other than the low-temperature regenerator unit is as shown in FIG.

  165a, 165b and 165c are multi-effect can regenerator chambers in the low temperature regenerator section. The crystallizer part and the dissolver part, which are one of the main components of the present invention, are configured and arranged in a cylindrical shape as a whole, and are formed in series and continuously in a hollow cylindrical shape above the cylindrical component. Three multi-effect can regenerator chambers 165a, 165b, and 165c are integrally arranged.

  Two or more multi-effect can regenerator chambers can be arranged, but FIGS. 4 and 5 illustrate three cases. In addition, the main components in each of the multi-effect can regenerator chambers 165a, 165b, and 165c have the same configuration, and a high-temperature concentrated solution and a high-temperature solvent vapor are injected into the multi-effect can regenerator chamber 165a at the tip of the series arrangement. And an outlet for removing the partially concentrated return solution. Also, in the multi-effect can regenerator chamber 165c at the end, a return solution transfer line 177 from the low-temperature regenerator part to the multi-effect can part and a solvent transfer line for injecting the solvent into the spiral flow path heat exchanger 20 178 is provided.

The multi-effect can regenerator chamber 165a is divided into an upper space and a lower space by a multi-effect can partition plate 179a, and a multi-effect can vapor flow heat exchanger 169a and / or a multi-effect can concentrated solution flow heat exchanger in the lower space. Solvent vapor generated by heating by 170 is sucked into an ejector 32a provided in the upper space via a steam extraction float valve 166a, and a multi-effect can on the downstream side via a multi-effect can steam flow heat exchanger 169b After being discharged into the regenerator chamber 165b and sequentially repeating this, it is discharged from the multi-effect can regenerator chamber 165c via the solvent transfer line 178 to the spiral flow channel heat exchanger 20.

  Further, a hot concentrated solution and solvent vapor injected through the gas-liquid transport pipe 105 are injected into the gas-liquid separator 145 from the tangential direction, and gas-liquid separation is performed using the density difference of the fluid. The concentrated solution is injected from below into the multi-effect can concentrated solution flow path heat exchanger 170 via the float valve 122a. The high-temperature solvent vapor is transferred to the multi-effect can vapor flow heat exchanger 169b after being used as the drive vapor for the ejector 32a via the multi-effect can vapor flow heat exchanger 169a.

  The condensed solvent generated in the multi-effect can vapor flow heat exchangers 169a, 169b, and 169c passes through the multi-effect can gas-liquid separators 168a, 168b, and 168c, respectively, and then passes through the solvent transfer line 178 to form a spiral flow path. Discharge to heat exchanger 20.

Water is injected from the water inlet 60a, and the heat exchange pipe 45a, the connecting pipe 125a, the wall through pipe connector 130c, the connecting pipe 125b, the spiral water supply heat exchanger 126a, and the connecting pipe 125c. , Spiral water flow heat exchanger 126b, connecting pipe 125d, wall through pipe connector 130d, connecting pipe 125e, wall through pipe connector 130e, high temperature water generator 103, wall through pipe connector It takes out as warm water through the tool 130f and the hot water outlet 104 in order.

  During this time, the high-temperature concentrated solution is sequentially cooled in the spiral clean water flow channel heat exchanger 126a to form a low-temperature concentrated solution to be a regenerated solution, which is regenerated solution channel 148a, regenerated solution channel 148b, regenerated solution channel. While moving sequentially through 148c, the water is further cooled by the cold heat of the water to cause reprecipitation of the solute, and the heat of precipitation is recovered by the helical water flow channel heat exchanger 126a to raise the temperature of the water.

When the temperature of the clean water is high, the flow sequence of clean water may be changed and injected first into the spiral clean water flow channel heat exchanger 126a.

In each embodiment, a float valve designed and manufactured in consideration of the specific gravity of the solution and the flow rate and direction of the liquid passing through the float valve is used. Floating bodies can also be used in each valve mechanism used for the purpose of gas-liquid separation, gas-liquid interface maintenance, backflow prevention, etc. In this case as well, the specific gravity of the solution and the flow rate and direction of the liquid passing through the floating body valve Use the one designed and manufactured considering the above.
In addition, the thing of the same function and not using a float or a floating body can also be used.

  Various on-off valves select the material used for the corrosiveness of the solution and / or solvent. When the corrosiveness of the solution and / or solvent becomes a problem, a valve that opens and closes using the force of a magnet covered with a corrosion-resistant material can be used.

The present invention can be easily expanded in scale, and can be used as a large-scale hot water production apparatus for business use as well as general household use.
In addition, if this equipment has a relatively low-temperature regeneration heat source of about 200 ° C and a cooling heat source such as air, river water, etc., it generates heat sources such as large-scale district cooling and heating by combining hot water supply, heating, cooling, and refrigeration. It can also be used as a device. Furthermore, it can be used for heat source generators in energy centers that use waste incineration heat, factory waste heat, etc. as regeneration energy, and can be configured for resource saving, energy saving, and environment-friendly heat source generators that are widely useful It is.

Explanatory drawing of the configuration of the heat pump hot water production system using heat of dissolution (Example 1) Explanatory drawing of the configuration of a heat pump hot water production system using heat of dissolution (Example 2) Explanatory drawing of the configuration of the heat pump hot water production equipment using heat of dissolution (Example 3) Vertical cross-sectional explanatory diagram of the structure of the multi-effect can low temperature regenerator (Example 4) Horizontal cross-sectional explanatory diagram of the structure of the multi-effect can low temperature regenerator (Example 4)

Explanation of symbols

2 Regenerator top cover
3 Regenerator outer wall
4 Regenerator inner wall
5 Regenerator bottom partition plate
6 Overflow solution descending flow path
7 Hot solvent vapor outlet
8 Solute inlet
9 Normal liquid level in the regenerator
10 Solution temperature controller
11 Combustion gas generator
12 Combustion gas flow path
13 Combustion gas discharge pipe
14 Overpressure steam release valve
15a 15b 15c 15d space
17 Low temperature regenerator outer wall
18 Low temperature regenerator top cover
19a 19b 19c Connecting flange outer periphery
20 Spiral channel heat exchanger
21 Return path
22 Internal flow path
23 Normal liquid level in the low-temperature regenerator
24 Liquid level control device
25 Low temperature regenerator part solvent vapor outlet
26a 26b Replenishment solvent storage tank
27 Motorized valve
28a 28b Solvent inlet
29 Vent pipe
30a 30b Normal liquid level in the replenishing solvent tank
31 Clearance
32a 32b 32c Multi-effect can ejector
33 Ejector
34 Drive steam inlet
35 Suction steam inlet
36 Steam outlet
38 Heat exchanger for high temperature water production
40 Hot water outlet
44 Condenser
45a 45b 45c Heat exchange conduit
48 Normal liquid level in the condenser
49 Open air pipe
50 Overpressure steam inlet
51 Solvent inlet
52a 52b Gas-liquid separator
54a 54b Excess gas outlet
56a 56b Outlet
58 Check valve
59a 59b Drain release valve
60a 60b Water inlet
61a 61b Water outlet
62 Solvent transfer pump
63 Low temperature solution circulation pump
64 External heat exchanger
66a 66b 66c 66d Inlet
67 Rotary shaft drive
68 axis of rotation
69 scraper
70 Scraper
71 Conical saucer
72 Opening at the bottom of the center of the pan
73 press extruder
74 Conical downcomer
75 Upflow shield
76 Spiral blade
77 Cylindrical water downcomer
78a 78b connector
80 Cylindrical water supply pipe
83a 83b 83c Crystallization center space
85 Crystallizer center side spiral pipe
86 Crystallizer outer peripheral side spiral pipe
87 Crystallizer top lid
88a 88b 88c 88d Connecting pipe
88f 88g 88h 88i 88j Connecting pipe
90 Conical partition opening
91 Solute crystal downcomer
93 Dissolver top conical partition plate
94 Dissolver bottom plate
95 Dissolver outer wall
96 Surplus solute crystal reservoir
97 Normal surface of surplus deposited solute crystals
98a 98b 98c 98d 98e 98f Post
102 External regenerator exhaust stack
103 Hot water generator
104 Hot water outlet
105 Gas-liquid transport pipe
106 Solution bypass outlet
107 Solution bypass inlet
108 Solution bypass controller
109 Outer wall of external regenerator heating device
110 External regenerator outer wall
111 Low temperature regeneration solution transport pump
112 Low temperature regeneration solution downcomer inlet
113a 113b External regenerator temperature detector
114 Low temperature regeneration solution downcomer
115 External regenerator solution heating concentrator
116 Premixed gas combustor
117 Combustion gas riser
118 Premixed gas production and supply equipment
119 Premixed gas supply pipe
120a 120b 120c 120d 120e Manual drain valve
121 Hot solution outlet
122a 122b 122c 122d 122e 122f 122g Float valve
123 magnet or electric magnet
124 Magnet built-in disk
125a 125b 125c 125d 125e 125f 125g 125h 125i 125j 125k Connecting line
126a 126b Spiral clean water flow heat exchanger
127 Cylindrical partition wall
128 Propeller for generating downward flow
129 Connection ring insert
130a 130b 130c 130d 130e 130f 130g Wall through pipe connection
131 spiral scraper
132a 132b Electric on-off valve
133a 133b 133c Liquid level detector
140 Normal liquid level in the condenser
141 Condenser solvent replenishment starting liquid level
142 Solvent replenishment liquid level in external regenerator
145 Gas-liquid separator
146 Return solution flow path from dissolver to low temperature regenerator
148a 148b 148c Regeneration solution flow path
149 Space
150 Supporting device
151 Top lid
160a 160b On-off valve
161 Gas-liquid separator
165a 165b 165c Multi-effect can regenerator room
166a 166b 166c Float valve for steam extraction
167a 167b Multi-effect can regenerator communication channel
168a 168b 168c Multi-effect can gas-liquid separator
169a 169b 169c Multi-effect can steam flow heat exchanger
170 Multi-effect can concentrated solution flow path heat exchanger
171a 171b 171c Multiple-effect can bulkhead
172 Multi-effect can inner wall
173 Multi-effect can lid
174 Multi-effect can bottom plate
175 Multi-effect can condensate solvent flow heat exchanger
176 Normal gas-liquid interface in multi-effect can
177 Return solution transfer line
178 Solvent transfer line
179a, 179b, 179c Multi-effect can partition

Claims (7)

A space for mixing and dissolving a solute exhibiting an endothermic phenomenon upon dissolution to form a low-temperature solution, and a surplus solute for temporarily storing excess solute crystals that cannot be dissolved beyond the solubility at the bottom of the space An external heat exchanger ( 64 ) for taking in heat from the atmospheric heat and / or external heat exhaust heat through the heat exchanger using the cold heat of the low temperature solution and arranging the crystal reservoir ( 96 ) A dissolver section provided with a low-temperature solution circulation pump ( 63 ) for continuously circulating and transporting a low-temperature solution to the external heat exchange device ( 64 ) and a pipe for the transport, and the dissolver An apparatus for heating and boiling the return solution generated and refluxed in the section, and a space ( 15a ) for temporarily retaining the high-temperature solvent vapor generated by the boiling above the space ( 15c ) where the return solution boils And produced by boiling That the hot concentrated solution overflow solution downward flow path for flow down the lower to overflow the (6) and the hot solvent vapor outlet for removing a high-temperature solvent vapor in the space (15a) (7), is provided respectively The regenerator part, a reflux path ( 21 ) for refluxing the return solution flowing out from the dissolver part to the regenerator part, and a part of the wall of the reflux path ( 21 ) are arranged. A high-temperature solvent vapor jetted from the high-temperature solvent vapor outlet ( 7 ) of the regenerator section or a high-temperature solvent condensate condensed with a part of the high-temperature solvent vapor A spiral channel heat exchanger ( 20 ) configured to swirl down from the top along the internal channel ( 22 ) , and the return solution is heated and heated by the spiral channel heat exchanger ( 20 ). The solvent generated by the evaporation by evaporating a part of the solvent in the return solution by heating A space (15b) for temporarily staying a gas, such as space (15b) solvent vapor outlet for removing the solvent vapors from (25), usually in a liquid of low temperature generator portion in contact with the space (15b) The liquid level controller ( 24 ) for detecting and adjusting the height of the surface ( 23 ) and the signal when the normal liquid level ( 23 ) in the low temperature regenerator section is lowered from the liquid level controller ( 24 ). A low temperature regenerator unit equipped with a mechanism for replenishing the solvent in the replenishing solvent storage tank ( 26 ) via the condenser ( 44 ) and the solvent transfer pump ( 62 ) in order according to the opening operation of the motorized valve ( 27 ). When the space for receiving via the solvent connection pipe for discharging (88b) and a solvent inlet (51) from the internal flow path of the lower end portion of the spiral flow path heat exchanger (20) (22), the heat exchange for part or all of the vapor of the solvent injected from the solvent inlet (51) is cooled and condensed clean water and or normally utilizing cold air Use line and (45a), and space (15d) for temporarily storing the condensed solvent, the atmosphere opening tube to the upper end (49) and outlet of the condensed solvent accumulated in the space (15d) to the lower ( 56a ) , respectively, a condenser, a spiral flow channel heat exchanger ( 20 ) arranged in the lower part of the regenerator part sequentially from the outer peripheral part toward the central part, and the outer peripheral side spiral tube of the crystallization part Channel ( 86 ) and vertical gaps separated by the central part of the crystallized part side spiral pipe ( 85 ) , respectively, in the crystallized part central space ( 83b ) and ( 83c ) consisting of two layers. Then, clean water as a cooling heat source for reprecipitation descends the cylindrical clean water descending pipe ( 77 ) and passes through the connecting pipe ( 88f ) to the central part of the crystallized section spiral pipe ( 85 ) and flows flow communication pipe downward pivoting from the top (the via 88 g) crystallized analyzing unit outer peripheral side spiral piping (86) upward to pivot from the lower part via a connecting pipe (88h) Cylindrical water supply rises While rising the road (80) flows from the water supply outlet (61b) to the connecting pipe (88i), the high-temperature concentrated solution flowing from the regenerator section through the heat exchanger walls each consisting of the conduit While moving through the crystallization part central space ( 83b ) , ( 83c ) in sequence, the high temperature concentrated solution is cooled to reprecipitate a part of the solute in the high temperature concentrated solution, and the reprecipitated solute crystal The main component is a crystallizer part that is configured to move to the lower space by free sedimentation, and the regenerator part, the crystallizer part, and the dissolver part are successively moved vertically from top to bottom. The low temperature regenerator unit is integrally disposed on the outer periphery of the regenerator unit and the crystallizer unit, and the solute crystals and / or the solution are routed between the units through a pipe line and / or an opening. integrally formed is arranged to move continuously Te, also tap water is inlet (60a), tap water outlet (61a) Communication pipe (88c), tap water inlet (60b), cylindrical tap water downcomer (77), connecting pipe (88f), crystallization analyzing unit center side spiral piping (85), the communication pipe line (88 g), Heat exchange for high-temperature water production via crystallization part outer peripheral side spiral pipe ( 86 ) , connecting pipe ( 88h ) , cylindrical water rising pipe ( 80 ) , connecting pipe ( 88i ) The melting is characterized in that each is arranged and arranged so that it is heated and heated through the high-temperature solvent vapor taken out from the regenerator part by the regenerator ( 38 ) and the heat exchanger wall to become high-temperature water and sent out from the high-temperature water outlet ( 40 ). Heat pump hot water production equipment using heat. A heat pump hot water producing apparatus using the heat of solution of claim 1, said by the suction force of the ejector (33) is provided the ejector (33) to drive the medium hot solvent vapor generated from the regenerator portion characterized by being configured so as to accelerate the evaporation of the solvent vapor in part or all of the solvent vapor in the low temperature regenerator section headspace (15b) by suction to remove the low-temperature regenerator section headspace (15b) Heat pump hot water production equipment using heat of dissolution. A heat pump hot water production apparatus using heat of dissolution according to claim 1 or 2, wherein the regenerator part, the crystallizer part, and a central axis of the dissolver part are provided with a rotation axis ( 68 ) , rotation axis driving device for driving the rotating shaft (68) and (67) is provided, said the rotational axis (68), said for causing a part of the space in the crystallizer unit cause reprecipitation of the solute crystals A scraping plate (69) for scraping off the solute crystals adhering to the inner peripheral low temperature wall surface of the crystallizer section central spiral pipe (85) constituting the outer peripheral wall of the deposit section central space ( 83c ) ) And / or the scraper plate ( 70 ) directly or integrally through the connecting members ( 78a ) , ( 78b ) , a heat pump hot water production apparatus using heat of dissolution. A heat pump hot water production apparatus using heat of dissolution according to claims 1, 2, and 3, wherein the regenerator unit, the crystallizer unit, and a rotation axis (68) are provided in the central part vertical direction of the dissolver unit. A rotating shaft driving device (67) for driving the rotating shaft ( 68 ), and a bottom central portion of the pan provided at the lower end of the rotating shaft ( 68 ) at the central bottom of the conical tray ( 71 ). A spiral blade ( 76 ) having an outer shape configured in a conical shape is integrally fixed along the inner peripheral wall surface of the conical downcomer pipe ( 74 ) continuously provided in the opening ( 72 ) , and the spiral A heat pump hot water production apparatus using heat of dissolution, characterized in that it is provided with a pressing extruder ( 73 ) comprising a blade shaped blade ( 76 ) and a conical downcomer pipe ( 74 ) . A space for mixing and dissolving a solute exhibiting an endothermic phenomenon upon dissolution to form a low-temperature solution, and a surplus solute for temporarily storing excess solute crystals that cannot be dissolved beyond the solubility at the bottom of the space An external heat exchanger ( 64 ) for taking in heat from the atmospheric heat and / or external heat exhaust heat through the heat exchanger using the cold heat of the low temperature solution and arranging the crystal reservoir ( 96 ) A dissolver section provided with a low-temperature solution circulation pump ( 63 ) for continuously circulating and transporting a low-temperature solution to the external heat exchange device ( 64 ) and a pipe for the transport, and the dissolver An apparatus for heating and boiling the return solution generated and refluxed in the section, and a gas-liquid mixed phase fluid composed of a high-temperature solution and a solvent generated by the heating boiling through a gas-liquid transport pipe ( 105 ) It is injected into the separation device (145), steam Via the ejector motive steam inlet (33) (34) was injected into the spiral flow path heat exchanger (20), the solution via the hot solution outlet at the lower end of the float valve (122a) (121) A regenerator unit configured to be injected into the regeneration solution channel ( 148 ) and a return solution flowing out from the dissolver unit via the solute crystal downcomer ( 91 ) , the solution is returned to the regenerator unit. Of the cylindrical spiral channel heat exchanger ( 20 ) provided between the outer peripheral wall ( 17 ) of the low temperature regenerator part and the cylindrical partition wall ( 127 ) via the return channel ( 146 ) Raised while being in contact with the outer wall surface, the normal liquid level ( 23 ) in the low-temperature regenerator part was formed, and the regenerator part was provided from the low-temperature regenerative solution transport pump ( 111 ) via the communication line ( 125k ) and the low temperature regenerator section is configured to inject into the low temperature solution downcomer inlet (112) and connected to the lower end portion of the spiral flow path heat exchanger (20) 絡管path space portion for injecting storing the steam and or condensate of the solvent to be discharged via (125f) and (149), injected part or all of the steam clean water and or normal atmospheric solvents A condenser ( 44 ) provided with a heat exchange pipe ( 45a ) for cooling and condensing using the cold heat, an open air pipe ( 49 ) at the upper end and a water inlet ( 60a ) at the lower part, respectively. Then, the high temperature concentrated solution flowing in the regenerative solution flow paths ( 148a ) , ( 148b ) , ( 148c ) in sequence is cooled by the cooling water in the spiral flow heat exchangers ( 126a ) , ( 126b ) in order to cool the solute. The main component is a crystallizer part configured to re-precipitate and collect the heat of precipitation to the water side, and the crystallizer part and the dissolver part are successively moved from top to bottom in the vertical direction. And the low temperature regenerator part is integrally arranged on the outer peripheral part of the crystallizer part, and the solute crystals and / or Is a heat pump hot water production apparatus using heat of dissolution, wherein the solution is integrally constructed and arranged so as to continuously move the solution through the connecting line and / or the opening. A heat pump hot water producing apparatus using the heat of solution of claim 5, the crystallizer unit, and the rotation shaft (68) provided in the center vertical direction of the dissolver unit, driving the rotary shaft (68) A rotating shaft driving device (67) that is provided , and a helical scraper ( 131 ) is fixed to the crystallizer part of the rotating shaft ( 68 ) , and a spiral flow path heat exchanger ( 126a ) is provided. The solute crystals that precipitate on the peripheral surface are scraped off and rotated in a direction that promotes the downward flow in the regeneration solution flow path ( 148c ) , and at the bottom of the rotation shaft ( 68 ) , the center of the cone-shaped saucer ( 71 ) Spiral blade ( 76 ) whose outer shape is configured in a conical shape along the inner peripheral wall surface of the conical downcomer pipe ( 74 ) provided continuously to the bottom opening ( 72 ) of the saucer central opening provided at the bottom Squeezing and extruding machine ( 73 ) and / or the helical blade ( 76 ) and conical downcomer pipe ( 74 ) A propeller ( 128 ) for generating a downward flow is provided at the lower end portion of the rotary shaft (68), and a magnet built-in disk ( 124 ) is fixed to the upper end portion of the rotary shaft (68) , and a magnet or an electromagnet ( 123 ) is provided. Heat pump hot water production apparatus using heat of dissolution, characterized in that it is provided with a support device ( 150 ) arranged and supported without receiving contact with an upward force applied to the rotating shaft (68) A heat pump hot water production apparatus using heat of dissolution according to claims 5 and 6, wherein a space where solvent vapor is generated and temporarily retained in the low-temperature regenerator section is divided into two or more spaces by a partition wall. The multi-effect can regenerator chambers configured as described above are connected and arranged in series and continuously with the multi-effect can regenerator chamber communication flow path, and the multi-effect can regenerator chamber ( 165c ) disposed at one end thereof . A multi-effect can regenerator that is placed at the other end through each multi-effect can regenerator chamber by flowing a return solution from the dissolver section to the low-temperature regenerator section via the return solution flow path ( 146 ) From the regenerator chamber ( 165a ) via the connecting line ( 125k ) by the low temperature regenerator transport pump ( 111 ) to the external regenerator solution heating concentrator ( 115 ), and the solvent vapor in the multi-effect can regenerator chamber Multi-effects are placed adjacent to the multi-effect can regenerator chamber Can regenerator chamber and or external regenerator solution heated concentrator (115) a heat pump utilizing the heat of solution, characterized by being configured arranged to perform a part or all of the thermal energy of the solvent vapor and the solution generated from the hot water Manufacturing equipment

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