CN104896569A - Temperature stratification type heat accumulating/releasing device - Google Patents
Temperature stratification type heat accumulating/releasing device Download PDFInfo
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- CN104896569A CN104896569A CN201510317121.3A CN201510317121A CN104896569A CN 104896569 A CN104896569 A CN 104896569A CN 201510317121 A CN201510317121 A CN 201510317121A CN 104896569 A CN104896569 A CN 104896569A
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Abstract
The invention relates to a temperature stratification type heat accumulating/releasing device, and belongs to the technical field of water heat accumulation. The device is characterized by comprising a water inlet, a heat accumulating tank, a heat accumulating tank cover, an inlet water distributor, an outlet water collector, a drain outlet, an upper flow equalizing plate, a lower flow equalizing plate, a heat exchange medium water collecting header, a heat exchange medium water separating header, a medium heat exchange pipe, a highest liquid level sensor, a lowest liquid level sensor and a liquid temperature sensor. The heat accumulating tank is divided into four areas of an upper flow stabilizing area, an air layer area, a main heat accumulating area and a lower flow stabilizing area. The heat exchange medium water collecting header and the heat exchange medium water separating header are two-dimensional spiral coils, and are mounted parallel to a baseplate of the heat accumulating tank; and the medium heat exchange pipe is perpendicular to the heat exchange medium water collecting header and the heat exchange medium water separating header. A heat accumulating fluid enters the heat accumulating tank from the inlet water distributor, and flows out from the tank from the outlet water collector to form a stable piston flow from top to bottom in the main heat accumulating area in the tank; and a heat exchange medium flows from bottom to top in the medium heat exchange pipe to form a totally upstream flowing mode with the heat accumulating fluid.
Description
Technical field
The present invention relates to a kind of thermal stratification type and store heat-releasing device, belong to water heat storage technology field.
Background technology
In remaining used heat and renewable energy utilization system, water heat accumulation apparatus is a kind of common equipment, for user provides the thermal source of heat supply or domestic hot-water.For the phenomenon preventing the low cold water of the high hot water of temperature in regenerative apparatus and temperature from occurring mixing, even occurring in device water Inner eycle, common water heat accumulation apparatus comprises mixing grooved, labyrinth type and thermal stratification type, wherein, thermal stratification type hot water storage tank has structure is simple, cost is low feature and is used widely.Thermal stratification type hot water storage tank utilizes water its density when different temperatures this character different to realize naturally isolating of hot water and cold water in same regenerative apparatus, the water that temperature is low is stored in the bottom of water tank, the water that temperature is high is stored in the top of water tank, thus avoids hot water and cause thermal loss with mixing of cold water.Therefore, for thermal stratification type hot water storage tank, how to keep water natural stability layering in water tank thus to form a stable mesolimnion most important to improve its heat storage efficiency?
For solving this problem, people arrange water-locator at the cold and hot water end (W.E.) of water tank usually, to guarantee that current evenly and lentamente enter or flow out hot water storage tank in hot water storage tank, reduce entrance and exit place fluid to the interference of accumulation of heat body fluid.As patent of invention discloses a kind of hopper energy-storage system and using method (number of patent application is 200610171597.1) thereof and efficient temperature stratification-type water energy-storage water-storage device (number of patent application is 201110058580.6), and patent of invention efficient temperature stratification-type water energy-storage water-storage device is solve below mesolimnion further due to the interference in entrance flow field there is flow-disturbing thus the part energy in mesolimnion taken to the less-than-ideal problem of accumulation of heat effect that bottom makes hot water storage tank, the plate porous media board of an infiltration is respectively established in the upper and lower of the inner chamber of catch basin.Although current thermal stratification type stores the problem that heat-releasing device part solves the layering of water natural stability, this regenerative apparatus accumulation of heat and heat release can not be carried out simultaneously, and namely thermal storage time and Exotherm Time must be independently; Simultaneously, regenerative apparatus has pressing system, namely water-locator is submerged in water, therefore, if systemic circulation flow is larger, the discharge of turnover regenerative apparatus is larger, then water-locator water distribution intensity is larger, larger to the disturbance of water body in regenerative apparatus, the phenomenon of hot and cold water mixing is more obvious, and accumulation of heat effect is poorer.Therefore, the thermal stratification type hot water storage tank for the problems referred to above development of new is necessary.
Summary of the invention
The technical problem to be solved in the present invention be to provide one not pressure-bearing, heat release can be stored simultaneously, and the thermal stratification type that layering is stablized, accumulation of heat is effective stores heat-releasing device.
Technical scheme of the present invention is as follows:
A kind of thermal stratification type stores heat-releasing device, divide water manifold, media for heat exchange pipe, the highest liquid level sensor, minimum liquid level sensor, fluid temperature sensor to form primarily of water inlet, accumulation of heat casing, accumulation of heat case lid, entrance water-locator, outlet water collector, sewage draining exit, upper homogenizing plate, lower homogenizing plate, heat transferring medium water collecting header, heat transferring medium, structural representation is as shown in accompanying drawing 1 ~ accompanying drawing 4.Water inlet, accumulation of heat casing, accumulation of heat case lid, entrance water-locator, outlet water collector, sewage draining exit, upper homogenizing plate, lower homogenizing plate, the highest liquid level sensor, minimum liquid level sensor, fluid temperature sensor forms regenerative apparatus of the present invention, water inlet is positioned at the top of accumulation of heat casing, upper homogenizing plate is positioned at the below of entrance water-locator, but higher than water inlet, lower homogenizing plate is positioned at the top of outlet water collector, but lower than the installation site of minimum liquid level sensor, the highest liquid level sensor is installed on the below of water inlet, fluid temperature sensor is vertically installed, be fixed on accumulation of heat casing madial wall, sewage draining exit is positioned at accumulation of heat box bottom, heat transferring medium water collecting header, heat transferring medium divide water manifold and media for heat exchange pipe to form heat-releasing device of the present invention, and this heat-exchanger rig is between the highest liquid level sensor and minimum liquid level sensor.
Of the present invention storing in heat-releasing device accumulation of heat casing is divided into four regions, wherein going up region between homogenizing plate and accumulation of heat case lid is current stabilization district, top, it is air layer district between upper homogenizing plate and thermal storage fluid liquid level, region between lower homogenizing plate and accumulation of heat box bottom is current stabilization district, bottom, and lower region between homogenizing plate and liquid level is main heat-accumulating area.
Heat transferring medium water collecting header and heat transferring medium divide water manifold to be two-dimensional helical coil pipe, and installation parallel with accumulation of heat box bottom, media for heat exchange pipe divides water manifold perpendicular to heat transferring medium water collecting header and heat transferring medium.Down, the water absorbing nozzle of outlet water collector also down for entrance water-locator nozzle.Thermal storage fluid enters accumulation of heat casing from entrance water-locator, casing is flowed out from outlet water collector, main heat-accumulating area in casing forms piston flow stable from the top down, and heat transferring medium flows from bottom to top in media for heat exchange pipe, forms the flow pattern of complete adverse current with thermal storage fluid.The highest liquid level sensor, minimum liquid level sensing, fluid temperature sensor are all connected with controller.
Outer vertical fins enhanced heat exchange can be adopted outside the media for heat exchange pipe pipe that a kind of thermal stratification of the present invention type stores heat-releasing device, in pipe, spiral ribs enhanced heat exchange can be adopted.
A kind of thermal stratification of the present invention type stores the upper homogenizing plate of heat-releasing device and lower homogenizing plate can adopt porous media board or porous plate.
Air layer region between upper water distributor of the present invention and thermal storage fluid liquid level makes thermal storage fluid naturally flow under gravity on liquid level, the water absorbing nozzle of water collector down simultaneously, thus decrease inlet fluid and outlet fluid to the strong perturbation action of main accumulation of heat regional fluid, improve the stability of the layering of thermal storage fluid, reduce hot and cold water mixing phenomena in accumulation of heat casing, thus improve accumulation of heat effect.
This regenerative apparatus has direct heat utilization and indirect heat exchange two kinds of mode of operations, and user can select mode of operation voluntarily according to the heat quality of thermal storage fluid, can realize accumulation of heat and heat release is carried out simultaneously during indirect heat exchange.
Accumulation of heat casing of the present invention not pressure-bearing, the material of casing can have multiple choices, and mechanical technology is simple, and easy processing and manufacturing, invests also lower.
Accompanying drawing explanation
Fig. 1 is that thermal stratification type stores heat-releasing device structural representation.
Fig. 2 is the A-A profile of Fig. 1.
Fig. 3 is the B-B profile of Fig. 1.
Fig. 4 is that heat transferring medium divides water manifold structural representation.
Figure: 1 water inlet, 2 accumulation of heat casings, 3 accumulation of heat case lids, 4 entrance water-locators, 5 outlet water collectors, 6 sewage draining exits, homogenizing plate on 7,8 times homogenizing plates, 9 heat transferring medium water collecting headers, 10 heat transferring mediums divide water manifold, 11 media for heat exchange pipes, 12 the highest liquid level sensors, 13 minimum liquid level sensors, 14 fluid temperature sensors.
Detailed description of the invention
Specific embodiments of the invention are described in detail below in conjunction with technical scheme and accompanying drawing.
A kind of thermal stratification type of the present invention stores heat-releasing device and divides water manifold 10, media for heat exchange pipe 11, the highest liquid level sensor 12, minimum liquid level sensor 13, fluid temperature sensor 14 to form primarily of water inlet 1, accumulation of heat casing 2, accumulation of heat case lid 3, entrance water-locator 4, outlet water collector 5, sewage draining exit 6, upper homogenizing plate 7, lower homogenizing plate 8, heat transferring medium water collecting header 9, heat transferring medium.Water inlet 1, accumulation of heat casing 2, accumulation of heat case lid 3, entrance water-locator 4, outlet water collector 5, sewage draining exit 6, upper homogenizing plate 7, lower homogenizing plate 8, the highest liquid level sensor 12, minimum liquid level sensor 13, fluid temperature sensor 14 form regenerative apparatus of the present invention; Entrance water-locator 4 is connected with accumulation of heat case lid 3, and upper homogenizing plate 7 is positioned at the below of entrance water-locator 4, and the top of water inlet 1 is fixed by the support on accumulation of heat case lid 3; Outlet water collector 5 is connected with the base plate of accumulation of heat casing 2, and lower homogenizing plate 8 is positioned at the top of outlet water collector 5, and the below of minimum liquid level sensor 13, is fixed by the support on accumulation of heat case lid 3; Upper homogenizing plate and lower homogenizing plate can adopt porous media board or porous plate.The highest liquid level sensor 12 is connected with accumulation of heat case lid 3 sidewall with minimum liquid level sensor 13; Fluid temperature sensor 14 is vertically installed, and is fixed on accumulation of heat casing 3 madial wall; Heat transferring medium water collecting header 9, heat transferring medium divide water manifold 10 and media for heat exchange pipe 11 to form heat-releasing device of the present invention, be fixed in accumulation of heat casing 3 by support, outer vertical fins enhanced heat exchange can be adopted outside media for heat exchange pipe pipe, in pipe, spiral ribs enhanced heat exchange can be adopted.
Claims (8)
1. a thermal stratification type stores heat-releasing device, comprise water inlet (1), accumulation of heat casing (2), accumulation of heat case lid (3), entrance water-locator (4), outlet water collector (5), sewage draining exit (6), upper homogenizing plate (7), lower homogenizing plate (8), heat transferring medium water collecting header (9), heat transferring medium divide water manifold (10), media for heat exchange pipe (11), the highest liquid level sensor (12), minimum liquid level sensor (13) and fluid temperature sensor (14), it is characterized in that
Water inlet, accumulation of heat casing, accumulation of heat case lid, entrance water-locator, outlet water collector, sewage draining exit, upper homogenizing plate, lower homogenizing plate, the highest liquid level sensor, minimum liquid level sensor, fluid temperature sensor forms regenerative apparatus, water inlet is positioned at the top of accumulation of heat casing, upper homogenizing plate is positioned at the below of entrance water-locator, but higher than water inlet, lower homogenizing plate is positioned at the top of outlet water collector, but lower than the installation site of minimum liquid level sensor, the highest liquid level sensor is installed on the below of water inlet, fluid temperature sensor is vertically installed, be fixed on accumulation of heat casing madial wall, sewage draining exit is positioned at accumulation of heat box bottom,
Heat transferring medium water collecting header, heat transferring medium divide water manifold and media for heat exchange pipe to form heat-releasing device, and this heat-exchanger rig is between the highest liquid level sensor and minimum liquid level sensor;
Four regions are divided in accumulation of heat casing (2), wherein going up region between homogenizing plate (7) and accumulation of heat case lid (3) is current stabilization district, top, be air layer district between upper homogenizing plate (7) and thermal storage fluid liquid level, region between lower homogenizing plate (8) and accumulation of heat casing (2) base plate is current stabilization district, bottom, and the region between lower homogenizing plate (7) and liquid level is main heat-accumulating area;
Thermal storage fluid enters accumulation of heat casing (2) from entrance water-locator (4), accumulation of heat casing (2) is flowed out from outlet water collector (5), main heat-accumulating area in accumulation of heat casing (2) forms piston flow stable from the top down, heat transferring medium flows from bottom to top in media for heat exchange pipe (11), forms the flow pattern of complete adverse current with thermal storage fluid.
2. a kind of thermal stratification type according to claim 1 stores heat-releasing device, be further characterized in that, heat transferring medium water collecting header (9) and heat transferring medium divide water manifold (10) for two-dimensional helical coil arrangement, installation parallel with accumulation of heat box bottom, media for heat exchange pipe (11) divides water manifold (10) perpendicular to heat transferring medium water collecting header (9) and heat transferring medium.
3. a kind of thermal stratification type according to claim 1 and 2 stores heat-releasing device, is further characterized in that, down, the water absorbing nozzle of outlet water collector (5) also down for entrance water-locator (4) nozzle.
4. a kind of thermal stratification type according to claim 1 and 2 stores heat-releasing device, is further characterized in that, upper homogenizing plate (7) and lower homogenizing plate (8) adopt porous media board or porous plate.
5. a kind of thermal stratification type according to claim 3 stores heat-releasing device, is further characterized in that, upper homogenizing plate (7) and lower homogenizing plate (8) adopt porous media board or porous plate.
6. a kind of thermal stratification type according to claim 1 or 2 or 5 stores heat-releasing device, is further characterized in that, media for heat exchange pipe (11) pipe is outer adopts outer vertical fins enhanced heat exchange, adopts spiral ribs enhanced heat exchange in pipe.
7. a kind of thermal stratification type according to claim 3 stores heat-releasing device, is further characterized in that, media for heat exchange pipe (11) pipe is outer adopts outer vertical fins enhanced heat exchange, adopts spiral ribs enhanced heat exchange in pipe.
8. a kind of thermal stratification type according to claim 4 stores heat-releasing device, is further characterized in that, media for heat exchange pipe (11) pipe is outer adopts outer vertical fins enhanced heat exchange, adopts spiral ribs enhanced heat exchange in pipe.
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| CN201510317121.3A CN104896569B (en) | 2015-06-07 | 2015-06-07 | A kind of temperature layered type stores heat-releasing device |
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| CN201510317121.3A CN104896569B (en) | 2015-06-07 | 2015-06-07 | A kind of temperature layered type stores heat-releasing device |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109140575A (en) * | 2018-10-15 | 2019-01-04 | 国家电投集团科学技术研究院有限公司 | The regenerative apparatus of thermally stratified layer enhancing |
| CN112728789A (en) * | 2021-01-19 | 2021-04-30 | 太原理工大学 | Phase-change heat storage and exchange integrated water tank |
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| CN104896569B (en) | 2017-08-01 |
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