CN217465468U - Horizontal phase-change heat storage device - Google Patents
Horizontal phase-change heat storage device Download PDFInfo
- Publication number
- CN217465468U CN217465468U CN202221523641.1U CN202221523641U CN217465468U CN 217465468 U CN217465468 U CN 217465468U CN 202221523641 U CN202221523641 U CN 202221523641U CN 217465468 U CN217465468 U CN 217465468U
- Authority
- CN
- China
- Prior art keywords
- heat storage
- spiral
- storage tank
- pipe
- flue gas
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Images
Landscapes
- Heat-Exchange Devices With Radiators And Conduit Assemblies (AREA)
Abstract
The utility model discloses a horizontal phase-change heat storage device, which comprises a heat storage tank which is horizontally arranged, wherein the top parts of the two sides of the heat storage tank are respectively provided with a flue gas inlet and a flue gas outlet; a spiral coil is arranged in the heat storage tank; the spiral coil comprises a plurality of spiral heat storage pipes which are mutually communicated, and phase-change materials are placed in the spiral heat storage pipes; the spiral heat storage pipe is a pipeline which is arranged in a surrounding way along a spiral track from inside to outside, and the axes of the spiral heat storage pipes are positioned on the same cross section; the inner end of the spiral heat storage pipe is connected with an inner connecting pipe, and the other end of the inner connecting pipe is positioned on the first side of the cross section; the outer end of the spiral heat storage pipe is connected with an outer connecting pipe; the other end of the outer connecting pipe is positioned on the second side of the section; an inlet valve and an outlet valve are respectively arranged on the spiral coil pipes positioned at the two ends of the heat storage tank; the utility model discloses an install spiral coil in the heat-retaining jar and solved the problem that long-term use back heat-retaining device heat-retaining efficiency descends.
Description
Technical Field
The utility model belongs to the technical field of the phase transition heat-retaining device, especially, relate to a horizontal phase transition heat-retaining device.
Background
Compared with a vertical phase-change heat storage device, the horizontal phase-change heat storage device has the advantages of high heat transfer efficiency, compact structure and capability of realizing pure countercurrent heat exchange. At present, in most of the existing horizontal phase change heat storage devices, a heat storage ball is arranged in a heat storage tank, and heat energy is stored and released through the heat storage ball.
However, the heat storage balls are basically closed hollow shells, and after the phase-change materials filled in the heat storage balls are used for many times, the heat storage performance is greatly reduced, so that the heat storage performance of the horizontal heat storage device is reduced.
SUMMERY OF THE UTILITY MODEL
The utility model aims at providing a horizontal phase transition heat-retaining device to avoid the problem that heat-retaining efficiency descends after long-term the use.
The utility model adopts the following technical scheme: a horizontal phase-change heat storage device comprises a heat storage tank which is horizontally arranged, wherein the top parts of two sides of the heat storage tank are respectively provided with a flue gas inlet and a flue gas outlet;
a spiral coil is arranged in the heat storage tank;
the spiral coil comprises a plurality of spiral heat storage pipes which are communicated with each other, and phase-change materials are placed in the spiral heat storage pipes; the spiral heat storage pipe is a pipeline which is arranged in a surrounding way along a spiral track from inside to outside, and the axes of the spiral heat storage pipes are positioned on the same cross section; the inner end of the spiral heat storage pipe is connected with an inner connecting pipe, and the other end of the inner connecting pipe is positioned on the first side of the cross section; the outer end of the spiral heat storage pipe is connected with an outer connecting pipe; the other end of the outer connecting pipe is positioned on the second side of the section;
and an inlet valve and an outlet valve are respectively arranged on the spiral coil pipes positioned at the two ends of the heat storage tank.
Furthermore, a baffling baffle is fixedly arranged in the heat storage tank along the cross section of the heat storage tank;
the baffling baffle is provided with a plurality of through holes and is provided with a notch.
Furthermore, the number of the baffle plates is odd, and the notches of two adjacent baffle plates are alternately arranged up and down.
Furthermore, the gaps of the baffle plates close to the smoke inlet and the smoke outlet are both positioned at the bottom of the heat storage tank.
Furthermore, a pull rod is connected between the baffle plates.
Furthermore, the outer wall of the heat storage tank is sleeved with a compensation ring.
The utility model has the advantages that: the utility model discloses an install spiral coil in the heat-retaining jar to in injecting into this spiral coil with phase change heat-retaining material, when long-time back phase change heat-retaining material emergence performance that uses reduces, can open the phase change heat-retaining material that inlet valve and outlet valve change spiral coil in, and then solved the problem that long-term back heat-retaining device heat-retaining efficiency that uses descends.
Drawings
Fig. 1 is a schematic structural view of a horizontal phase-change heat storage device according to an embodiment of the present invention;
FIG. 2 is a schematic view of an interface of a baffle according to an embodiment of the present invention;
fig. 3 is a schematic structural view of a heat storage tube in an embodiment of the present invention;
fig. 4 is a schematic structural diagram of the spiral coil pipe in the embodiment of the present invention;
fig. 5 is a schematic structural view of another view angle of the spiral coil according to the embodiment of the present invention.
Wherein: 1. a flue gas inlet; 2. a baffle plate; 3. an inlet of the spiral coil; 4. an inlet valve; 5. a heat storage tank; 6, spiral coil pipe; 7. a flue gas outlet; 8. an outlet valve; 9. an outlet of the spiral coil; 10. a heat storage tank support; 11. fixing a bracket; 12. a pull rod; 13. and (6) a compensation ring.
Detailed Description
The present invention will be described in detail with reference to the accompanying drawings and specific embodiments.
The utility model discloses a horizontal phase-change heat storage device, which comprises a heat storage tank 5 horizontally arranged, wherein the top parts of two sides of the heat storage tank 5 are respectively provided with a flue gas inlet 1 and a flue gas outlet 7; a spiral coil 6 is arranged in the heat storage tank 5; the spiral coil 6 comprises a plurality of spiral heat storage pipes 61 which are communicated with each other, and phase change materials are placed in the spiral heat storage pipes 61; the spiral heat storage pipe 61 is a pipeline which is arranged from inside to outside in a surrounding manner along a spiral track, and the axes of the spiral heat storage pipe 61 are positioned on the same cross section; the inner end of the spiral heat storage pipe 61 is connected with an inner connecting pipe 62, and the other end of the inner connecting pipe 62 is positioned on the first side of the cross section; the outer end of the spiral heat storage pipe 61 is connected with an outer connecting pipe 63; the other end of the outer connecting pipe 63 is positioned on the second side of the section; and an inlet valve 4 and an outlet valve 8 are respectively arranged on the spiral coil 6 positioned at the two ends of the heat storage tank 5.
The utility model discloses an install spiral coil in the heat-retaining jar to in injecting into this spiral coil with phase change heat-retaining material, when long-time back phase change heat-retaining material emergence performance that uses reduces, can open the phase change heat-retaining material that import valve and outlet valve changed in the spiral coil, and then solved the problem that long-term back heat-retaining device heat-retaining efficiency of using descends.
As shown in fig. 4 and 5, the inner connection pipe 62, the spiral heat storage pipe 61 and the outer connection pipe 63 have the same pipe diameter, and all of them are made of metal. Preferably, the outer diameter is 30 to 50mm, and the wall thickness is 1.5 to 2.0 mm. The inner end of the spiral heat storage pipe 61 is hermetically welded with the inner connecting pipe 62; the outer end of the spiral heat storage pipe 61 is hermetically welded with the outer connecting pipe 63. The sections where the axes of the adjacent spiral tubes 61 are located are parallel.
The spiral coil 6 material is red copper, moreover, has anticorrosive coating on the inner wall of spiral coil 6, and thickness is 0.01 ~ 0.1mm to avoid phase change heat-retaining material to corrode spiral coil 6 and cause revealing of phase change heat-retaining material. And, because this spiral coil 6 of this embodiment is used in the flue gas, in order to prevent the greasy dirt adhesion in the flue gas, have oleophobic coating on spiral coil 6's outer wall, thickness is 0.01 ~ 0.1 mm.
The material of the thermal storage tank 5 may be a metal, such as Q235 carbon steel, Q345 carbon steel, 304 stainless steel, 201 stainless steel, 316L stainless steel, 210 stainless steel, or the like. The heat storage tank 5 is cylindrical, and the selectable diameter is 800-1000 mm, and the wall thickness is 1.5-2 mm.
In this embodiment, a baffle plate 2 is fixedly disposed in the heat storage tank 5 along the cross section thereof, the baffle plate 2 is made of metal, and the type of the material may be Q235 carbon steel, Q345 carbon steel, 304 stainless steel, 201 stainless steel, 316L stainless steel, 210 stainless steel, or the like. The flow velocity and the flow direction of the flue gas entering the heat storage tank 5 can be adjusted through the baffle 2, and then the spiral coil 6 is heated more uniformly.
Specifically, the baffle 2 is provided with a plurality of through holes, and the baffle 2 is provided with a notch. By providing a gap, the joint of the helical coil 6 can be passed there through. More specifically, the number of the baffle plates 2 is odd, and is at least three, and the notches of two adjacent baffle plates 2 are alternately arranged up and down. Furthermore, the flue gas can circulate from top to bottom in the heat storage tank 5, so that the circulation space of the flue gas is increased, and the stress uniformity of the spiral coil 6 is increased.
A plurality of baffle 2 equidistance are arranged in turn between flue gas inlet 1 and exhanst gas outlet 7, can improve the coefficient of heat transfer of device, are convenient for better let the flue gas and spiral coil 6 contact carry out the heat-retaining. According to the circulation direction of flue gas, 2 positions of first baffling baffle arrange in the entry right side, the opening is downward, and last baffling baffle 2 arranges in the export left side, and the opening is downward to dead areas appears when avoiding the flue gas circulation. Preferably, the number of the baffle plates 2 is 3-8.
In one embodiment, the notches of the baffle 2 near the flue gas inlet 1 and the flue gas outlet 7 are located at the bottom of the heat storage tank 5. Through the design, the flue gas directly circulates to the lower part of the heat storage tank 5 after entering the heat storage tank, then circulates up and down until the last baffle 2 also circulates from bottom to top, and an area (also a dead zone) without flue gas circulation generated in the heat storage tank 5 can be avoided.
In order to increase the firm effect of baffle 2, be connected with pull rod 12 between a plurality of baffle 2, connect a plurality of baffle 2 as an organic whole through pull rod 12. The pull rod 12 is made of metal, and the type of the material can be Q235 carbon steel and Q345 carbon steel, and the diameter is 8-10 mm. Two liang of a set of parallel and level, evenly distributed is in heat storage tank 5 upper and middle position down for fixed baffling baffle 2, the quantity can be 4 ~ 6.
In one embodiment, the outer wall of the heat storage tank 5 is sleeved with a compensation ring 13. When the flue gas enters the heat storage tank 5, the temperature of the heat storage tank 5 is increased, force expanding to the outside is generated, deformation is generated, the compensation ring 13 after deformation is sleeved outside the heat storage tank 5, and the compensation ring is annular or arc-shaped and has certain elasticity, so that deformation force towards the center is generated on the deformation area of the heat storage tank 5 until the heat storage tank 5 recovers a circular shape, and the deformation force disappears.
The compensation ring 3 is positioned in the middle section of the shell of the heat storage device, and the material of the compensation ring is consistent with that of the shell of the heat storage tank 5. When the temperature difference between the temperature in the heat storage tank 5 and the temperature of the flue gas exceeds 50 ℃ when the flue gas enters, the compensation ring 13 compensates the thermal expansion caused by the stress through slow elastic deformation.
Furthermore, the inside oleophobic coating that scribbles of heat storage tank 5 casing prevents to contain the oil smoke in the flue gas, and the ash in the inclusion flue gas from adhering on the pipe wall, causes heat-retaining device's performance degradation.
Further, a heat storage tank support 10 is provided below the heat storage tank 5 to support and fix the heat storage tank 5. The heat storage tank support 10 is made of metal, the material types can be Q235 carbon steel and Q345 carbon steel, and the thickness is 6-10 mm. In the heat storage tank 5, a fixing bracket 11 for fixing the spiral coil 6 is further provided, which can be specifically designed according to the number of the spiral heat storage pipes 61, and is usually 8-20.
The outer layer of the heat storage tank 5 comprises a two-layer structure which is arranged from inside to outside and is respectively a heat preservation layer and an outer guard plate. The heat-insulating layer can be made of polyurethane, phenolic boards, rubber and plastic cotton, rock wool, aluminum silicate fibers and the like, and the thickness of the heat-insulating layer is 30-150 mm. An outer protective plate is arranged outside the heat preservation layer, the thickness of the outer protective plate is 0.5-1.5 mm, the outer protective plate can be made of carbon steel, and a layer of anti-corrosion coating is attached to the inner surface and the outer surface of the carbon steel; the outer shield may also be galvanized sheet or 304 stainless steel.
In addition, the spiral coil 6 includes a spiral coil inlet 3 and a screwA coil outlet 9, and an inlet valve 4 and an outlet valve 8. The phase-change material arranged in the spiral coil 6 is Li 2 CO 3 And K 2 CO 3 The phase transition temperature point of the mixture of the two inorganic salts in different ratios is 250-500 ℃. The diameter of the pipe is 30-50 mm, the wall thickness is 1.5-2 mm, and the total diameter of the spiral coil 6 is 700-800 mm. The spiral heat storage pipes 61 are arranged at equal intervals, the number of the arranged spiral coils can be 16-30, two adjacent spiral heat storage pipes 61 rotate 180 degrees in the horizontal direction, the interface position of each layer of spiral heat storage pipe 61 is 90 degrees different from the interface position of the adjacent spiral heat storage pipe 61, and the spiral coils are circularly alternated by an inner-outer-inner-outer connection mode respectively.
The material of the spiral coil 6 is red copper, a layer of anticorrosive coating is coated on the inner surface of the spiral coil 6 for preventing the heat storage material from corroding the spiral coil 6, and a layer of oleophobic coating is coated on the outer part of the spiral coil 6 for preventing tar in smoke from adhering to the outer part of the spiral coil and reducing the heat storage performance. The heat-resistant temperature of the anti-corrosion coating and the oleophobic coating is higher than the upper limit temperature of the heat storage material, and the thickness of the coating can be 0.01-0.1 mm.
In one embodiment, the heat storage device is composed of two parts, namely a heat storage tank 5 and a spiral coil 6; wherein, the material of the heat storage tank 5 is 316L stainless steel, the diameter of the heat storage tank 5 is 800mm, and the wall thickness is 2 mm. The diameter of the compensating ring 13 is 12mm, the number of the fixed brackets 11 is 8, the number of the pull rods 12 is 4, the number of the baffle plates 2 is 8, and the phase-change material is Li 2 CO 3 And K 2 CO 3 According to mass fraction 1: 1, proportioning. The diameter of the pipe is 30mm, the total diameter of the spiral coil 6 is 700mm, the wall thickness is 2mm, the number of the spiral heat storage pipes 61 which are arranged together is 16, the thickness of an anticorrosive coating in the spiral coil 6 and the thickness of an oleophobic coating outside the spiral pipe are both 0.01mm, when the spiral heat storage pipes are heated, high-temperature flue gas passes through the flue gas inlet 1 and contacts with the spiral coil 6 to be heated, and then the flue gas flows through a path formed by the baffling baffle 2 and flows out from the flue gas outlet 7. When heat is released, the low-temperature flue gas passes through the flue gas outlet 7, the filled heat of the heat storage device is discharged through the spiral coil 6, and the flue gas flows out from the flue gas inlet 1 through the baffling baffle 2.
In another embodiment, the phase-change heat storage device is composed of two parts, namely a heat storage tank 5 and a spiral coil 6; wherein the material of the heat storage tank 5 is 304 stainless steel, the diameter of the heat storage tank 5 is 900mm, and the wall thickness is 2 mm. The diameter of the compensating ring 13 is 12mm, the number of the fixed brackets 11 is 12, the number of the pull rods 12 is 6, the number of the baffle plates 2 is 8, and the phase-change material is Li 2 CO 3 And K 2 CO 3 According to mass fraction 2: 1, proportioning. The pipe diameter is 40mm, the total diameter of spiral coil 6 is 800mm, the wall thickness is 2mm, the number of the spiral heat storage pipe 61 that arranges altogether is 20, anticorrosive coating in the spiral coil 6 and the oleophobic coating thickness of spiral pipe outside are 0.01mm, when heat storage device performance descends, can consider to change the heat-retaining material, at this moment heat storage device fills the heat earlier, high temperature flue gas passes through cigarette import 1, with spiral coil 6 contact fill the heat, the flue gas flows along baffling baffle 2 formation route afterwards, flow out from exhanst gas outlet 7. When the heat is full, the inlet valve 4 is opened, the inlet 3 of the spiral coil is connected with the atmosphere, and then the outlet valve 8 is opened, so that the phase change heat storage material is discharged. And after the phase-change heat storage material is discharged, the outlet valve 8 is closed, the phase-change material in a molten state is filled from the inlet valve 4, and finally the inlet valve 4 is closed, so that the phase-change heat storage material can be completely replaced.
Claims (6)
1. The horizontal phase-change heat storage device is characterized by comprising a heat storage tank (5) which is horizontally arranged, wherein the tops of two sides of the heat storage tank (5) are respectively provided with a flue gas inlet (1) and a flue gas outlet (7);
a spiral coil (6) is arranged in the heat storage tank (5);
the spiral coil pipe (6) comprises a plurality of spiral heat storage pipes (61) which are communicated with each other, and phase-change materials are placed in the spiral heat storage pipes (61); the spiral heat storage pipe (61) is a pipeline which is arranged in a surrounding mode from inside to outside along a spiral track, and the axes of the spiral heat storage pipe (61) are located on the same cross section; the inner end of the spiral heat storage pipe (61) is connected with an inner connecting pipe (62), and the other end of the inner connecting pipe (62) is positioned on the first side of the cross section; the outer end of the spiral heat storage pipe (61) is connected with an outer connecting pipe (63); the other end of the outer connecting pipe (63) is positioned on the second side of the cross section;
and the spiral coil pipes (6) positioned at the two ends of the heat storage tank (5) are respectively provided with an inlet valve (4) and an outlet valve (8).
2. A horizontal phase-change heat storage device according to claim 1, characterized in that a baffle (2) is fixedly arranged in the heat storage tank (5) along the cross section thereof;
the baffling baffle (2) is provided with a plurality of through holes, and the baffling baffle (2) is provided with a notch.
3. The horizontal phase-change heat storage device as claimed in claim 2, characterized in that the number of baffle plates (2) is odd, and the gaps of two adjacent baffle plates (2) are arranged alternately up and down.
4. A horizontal phase change heat storage device according to claim 3, characterized in that the gaps of the baffle (2) close to the flue gas inlet (1) and the flue gas outlet (7) are located at the bottom of the heat storage tank (5).
5. The horizontal phase-change heat storage device as claimed in any one of claims 2 to 4, wherein tie rods (12) are connected between the baffle plates (2).
6. The horizontal phase-change heat storage device as claimed in claim 5, characterized in that the outer wall of the heat storage tank (5) is sleeved with a compensation ring (13).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221523641.1U CN217465468U (en) | 2022-06-17 | 2022-06-17 | Horizontal phase-change heat storage device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221523641.1U CN217465468U (en) | 2022-06-17 | 2022-06-17 | Horizontal phase-change heat storage device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN217465468U true CN217465468U (en) | 2022-09-20 |
Family
ID=83237661
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202221523641.1U Active CN217465468U (en) | 2022-06-17 | 2022-06-17 | Horizontal phase-change heat storage device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN217465468U (en) |
-
2022
- 2022-06-17 CN CN202221523641.1U patent/CN217465468U/en active Active
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN109870046B (en) | Ascending pipe heat exchanger | |
| CN204301308U (en) | Multi-way winding pipe type condensation heat exchanger | |
| CN109269334B (en) | A kind of cast type microchannel compact heat exchanger and its manufacturing method | |
| CN107860022B (en) | Variable flue section tubular air preheater | |
| CN217465468U (en) | Horizontal phase-change heat storage device | |
| CN202254969U (en) | Niobium cooler | |
| CN108332591B (en) | Cold-storage and heat-storage integrated device | |
| CN208901936U (en) | Double pipe heat exchanger | |
| CN210154394U (en) | Tube array type concrete heat reservoir | |
| CN206028721U (en) | Blow whole middle package be built by contract of argon formula | |
| CN210624567U (en) | Anticorrosive type air heater | |
| CN210688783U (en) | Novel heat absorber assembly for tower type photo-thermal power generation | |
| CN103591604B (en) | Hot-blast outlet is located at the high-temperature air preheater at middle part | |
| CN203704728U (en) | Quenching heat exchanger | |
| CN207881525U (en) | A kind of recuperator | |
| CN215063932U (en) | Tubular heat exchanger | |
| CN105222122B (en) | It is applied to the superheater of boiler | |
| CN219621134U (en) | Heat-insulating water jacket for gas producer | |
| CN109883232A (en) | A kind of solid heat storage body | |
| CN209763006U (en) | Evaporator utilizing waste heat of blast furnace slag | |
| CN212227092U (en) | Be applicable to regional novel heat preservation seal structure of economizer | |
| CN205279822U (en) | High temperature heat pipe exchanger is taken a fancy to to gas -liquid | |
| CN217442351U (en) | Phase-change heat storage material placing pipe and medium-high temperature phase-change heat storage device | |
| CN203011124U (en) | Cokeless cupola furnace water-cooling furnace bar | |
| CN219301333U (en) | Heat-insulating flame-explosion-resistant impact electric furnace flue gas pipeline |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |