CN211782952U - Combined heat storage unit - Google Patents
Combined heat storage unit Download PDFInfo
- Publication number
- CN211782952U CN211782952U CN201922386306.6U CN201922386306U CN211782952U CN 211782952 U CN211782952 U CN 211782952U CN 201922386306 U CN201922386306 U CN 201922386306U CN 211782952 U CN211782952 U CN 211782952U
- Authority
- CN
- China
- Prior art keywords
- heat storage
- heat
- gas
- ash discharge
- heat exchange
- 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
Classifications
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02E60/14—Thermal energy storage
Landscapes
- Waste-Gas Treatment And Other Accessory Devices For Furnaces (AREA)
Abstract
The utility model discloses a modular heat-retaining unit, include: the heat storage device is internally provided with two independent heat exchange spaces in parallel, and the top of each heat exchange space is provided with an opening for gas to pass through; the ash discharge channel is arranged at the bottom of the heat storage device and used for communicating the two heat exchange spaces, and an ash discharge valve is arranged at the bottom of the middle section of the ash discharge channel; the device comprises a heat exchange space, an ash discharge channel and an ash discharge valve, wherein the heat exchange space, the ash discharge channel and the other heat exchange space sequentially form a gas flow channel, each heat exchange space is used for storing heat or releasing heat for gas, the ash discharge channel is used for providing a deposition space for dust in the gas, and the ash discharge valve is used for discharging the deposited dust. The problem of current heat-retaining equipment mainly be applicable to clean gas, can't arrange the dirt to when dusty flue gas heat transfer is solved.
Description
[ technical field ] A method for producing a semiconductor device
The utility model belongs to the technical field of the heat-retaining equipment, concretely relates to modular heat-retaining unit.
[ background of the invention ]
Existing gas heat storage devices are mainly regenerative hot blast stoves, electric heat storage devices and heat storage devices in Combined Cycle Gas Turbine (CCGT) power plants.
The hot blast stove is used in the steel industry and used for improving the temperature of pre-burning air, the top or the side of the hot blast stove is provided with a burner, gas after gas combustion is used as a heat source during heat charging, the hot blast stove is relatively clean, and the heat storage part of the hot blast stove is directly used for blocking dust-containing smoke.
When the electric heat storage product is used for charging, an electric heating rod is used for directly heating air, the temperature of a heat source reaches 1000 ℃, the temperature of hot water generated by a gas-water heat exchanger is less than 100 ℃ when heat is released, the available temperature difference of materials is large, heat storage and release are easy to realize, the average smoke temperature during charging is generally required to be 380 ℃ and the minimum heat release temperature is 300 ℃ when the existing heat storage equipment for waste heat peak regulation is used, the realization difficulty is large due to the small temperature difference, and the electric heat storage product is not suitable for the condition that the heat source is dust-containing smoke.
In Combined Cycle Gas Turbine (CCGT) power plants, the addition of a thermal storage system decouples electricity and heat, storing excess heat to the TES system when power demand is high. Then, when the power demand is low, the heat energy generated by the TES is used for generating steam through the boiler to supply to the user. The heat storage device mainly comprises a heat storage material, a heat insulation material and a storage container, theoretical and experimental tests are carried out on a test platform of German Stuttgart DLR, and the fact that waste heat peak shaving can be realized is proved, but the device still cannot realize the dust exhaust function and cannot be used in scenes such as a cement kiln with large dust content.
[ Utility model ] content
The utility model aims at providing a modular heat-retaining unit to solve the problem that current heat-retaining equipment can't remove dust when to the dusty flue gas heat transfer.
The utility model adopts the following technical scheme: a combined heat storage unit comprising:
the heat storage device is internally provided with two independent heat exchange spaces in parallel, and the top of each heat exchange space is provided with an opening for gas to pass through;
the ash discharge channel is arranged at the bottom of the heat storage device and is used for communicating the two heat exchange spaces, and an ash discharge valve is arranged at the bottom of the ash discharge channel;
the device comprises a heat exchange space, an ash discharge channel and another heat exchange space, wherein the heat exchange space, the ash discharge channel and the other heat exchange space sequentially form a gas flow channel, each heat exchange space is used for storing heat or releasing heat for gas, the ash discharge channel is used for providing a deposition space for dust in the gas, and the dust is discharged through an ash discharge valve.
Further, the top in every heat transfer space all communicates and is equipped with the current equalizer, and the current equalizer includes:
the gas channel is of a hollow cavity structure;
the flow equalizing platform body structure is a hollow platform body structure which is communicated with the gas channel and is small in upper part and large in lower part, a plurality of trapezoidal partition plates which are transversely and longitudinally staggered are arranged in the flow equalizing platform body structure, and a gas flow channel for flow equalizing gas is formed between the partition plates.
Furthermore, the ash discharge channel comprises three layers of arc plates which are sequentially arranged from outside to inside at intervals, wherein the bottoms of the two layers of arc plates positioned inside are uniformly provided with a plurality of ash discharge holes, the bottom of the arc plate positioned on the outermost side is outwards protruded to be provided with an ash discharge groove, and the tops of the three layers of arc plates are communicated with the bottom of the heat storage device.
Furthermore, the ash discharge groove is arranged at the bottom of the middle of the outermost arc-shaped plate, and the extension direction of the ash discharge groove is vertical to the chord length direction of the arc-shaped plate.
Furthermore, a vertical partition plate is arranged in the heat storage device to isolate two independent heat exchange spaces.
Further, the heat storage body in the heat storage device is one or a combination of a plurality of stacked clay brick heat storage bodies, lattice brick heat storage bodies, rod bundle type heat storage bodies, flat plate type heat storage bodies and shell and tube type heat storage bodies.
The utility model has the advantages that: the utility model discloses a set up the ash discharge passageway under the heat-retaining device, can also arrange the ash when carrying out the heat-retaining to gas, be applicable to the great cement kiln of dust content and steel production line, the in-process of heat transfer easily arranges the dirt and can not take place to block up. And simultaneously, the utility model discloses a highly lower, be convenient for installation and maintenance, the homogeneity in inside flow field is good.
[ description of the drawings ]
FIG. 1 is a schematic structural view of the combined heat storage unit of the present invention;
FIG. 2 is a schematic structural view of a current equalizer of the combined heat storage unit of the present invention;
FIG. 3 is a schematic structural view of an ash discharge passage of the combined heat storage unit of the present invention;
fig. 4 is an explosion diagram of the ash discharge channel of the combined heat storage unit according to the present invention.
The heat storage device comprises a base support 1, a heat storage device 2, a flow equalizer 4, an ash discharge channel 5, an ash discharge valve 7, a partition plate 8, a gas channel 41, a flow equalizing platform body structure 42, an arc-shaped plate 51, an ash discharge hole 52, an ash discharge groove 53 and a baffle 54.
[ detailed description ] embodiments
The present invention will be described in detail with reference to the accompanying drawings and specific embodiments.
The utility model provides a modular heat-retaining unit, as shown in fig. 1, including fixing heat-retaining device 2 above basic support 1 and setting up the row's ash passageway 5 in heat-retaining device 2 bottoms. Two independent heat exchange spaces are arranged in the heat storage device 2 in parallel, and the top of each heat exchange space is provided with an opening for gas to pass through. The ash discharge channel 5 is arranged at the bottom of the heat storage device 2 and used for communicating the heat exchange space, and an ash discharge valve 7 is arranged at the bottom of the middle section of the ash discharge channel 5 downwards. Wherein, a heat transfer space, row's ash passageway 5 and another heat transfer space constitute gaseous flow channel in proper order, every the heat transfer space is used for the heat-retaining or heat release of gas, row's ash passageway 5 is arranged in providing the deposit space of dust in the gas. The heat-exchanged gas passes through the ash discharge channel 5, is deposited to the bottom ash discharge groove 53 through each ash discharge hole 52 under the action of gravity, and is discharged through the ash discharge valve 7 at the bottom of the bottom ash discharge groove.
As shown in fig. 2, a flow equalizer 4 is disposed at the top of each heat exchange space, and the flow equalizer 4 includes a gas channel 41 and a flow equalizing platform structure 42. The gas channel 41 is a hollow cavity structure; the flow equalizing table body 42 is a hollow table body structure which is small in top and large in bottom and communicated with the gas channel, a plurality of vertically-oriented trapezoidal partition plates which are staggered transversely and longitudinally are arranged in the flow equalizing table body, and vertical-oriented gas circulation channels for flow equalizing gas are formed between the partition plates. The design of the transversely and longitudinally staggered partition plates can make the gas entering and exiting the flow equalizer 4 more uniform.
The flow equalizer 4 has two, one is the gas inlet, and another is the gas outlet, and the heat accumulation and heat release stage import and export exchange. The gas flows through a path from one flow equalizer 4, exchanges heat through one heat exchange space, enters an ash discharge channel 5 to discharge ash, exchanges heat through the other heat exchange space, and is discharged through the other flow equalizer 4, and the process is finished. If the gas is a high-temperature gas, heat is stored in the heat exchange space, and if the gas is a low-temperature gas, heat is released in the heat exchange space. If the gas is dust-containing flue gas, dust is deposited in the dust discharge channel 5 and is discharged from the dust discharge channel; if the gas is pure flue gas, the combined heat storage unit is also applicable.
As shown in fig. 3 and 4, the ash discharge channel 5 includes three layers of arc-shaped plates 51 arranged from outside to inside at intervals in sequence, wherein the bottoms of the two layers of arc-shaped plates 51 positioned inside are uniformly provided with a plurality of ash discharge holes 52, the bottom of the arc-shaped plate 51 positioned at the outermost side is provided with an ash discharge groove 53 in an outward protruding manner, and the tops of the three layers of arc-shaped plates 51 are communicated with the bottom of the heat storage device 2; the two sides of the ash discharge channel 5 are sealed by baffles 54. The using process is as follows: the gas enters the three layers of arc plates 51 of the ash discharge channel 5 through the heat exchange space, and the dust falls into an ash discharge groove 53 through a plurality of ash discharge holes 52 under the action of gravity and is finally discharged by an ash discharge valve 7. The ash discharge groove 53 is horizontally arranged at the bottom of the middle of the arc-shaped plate 51 at the outermost side, and the extending direction of the ash discharge groove is vertical to the chord length direction of the arc-shaped plate 51.
The two heat exchange spaces included in the heat storage body of the heat storage device 2 can be two heat exchange spaces arranged at intervals, and also can be two independent heat exchange spaces separated by arranging the vertical partition plate 8 in the heat storage device. The heat exchange body in the heat storage device 2 is used for exchanging heat for gas passing through the heat exchange body, and can be one or a combination of a plurality of stacked clay brick heat storage bodies, checker brick heat storage bodies, rod bundle type heat storage bodies, flat plate type heat storage bodies and shell and tube type heat storage bodies.
The use method of the combined heat storage unit comprises the following steps: a flow equalizer 4 receives the gas and transmits the gas to a heat exchange space of the heat storage device 2 communicated with the gas; the heat exchange space receives the gas and carries out primary heat exchange on the gas; the ash discharge channel receives the gas after primary heat exchange and receives dust settled from the gas; the other heat exchange space receives the gas transmitted by the ash discharge channel and carries out secondary heat exchange on the gas; and the other flow equalizer 4 discharges the gas after the secondary heat exchange. The gas flow path of the combined heat storage unit is opposite to that of the combined heat storage unit under the heat exchange working condition and the heat storage working condition.
When heat is stored, high-temperature airflow enters the flow equalizer 4 to increase the flow area and then enters a heat exchange space in the heat storage device 2; the heat exchange space channel receives the gas and carries out primary heat exchange on the gas, the temperature of the gas is reduced, and the temperature of the heat storage body is increased; the gas passes through the ash discharge channel 5, and the smoke dust with the density higher than that of the air is thrown to the baffle plate under the action of centrifugal force and falls to the ash hopper through the small holes; then the gas passes through another heat exchange space to exchange heat for the second time, the gas temperature is further reduced, and the temperature of the heat storage body is increased; the gas flows into another flow equalizer 4, and is discharged to the flue after the flow cross section is reduced. And opening the ash discharge valve after heat storage is finished, and discharging the smoke dust.
When heat is released, the gas flow is opposite to that during heat storage, gas with lower temperature flows into the flow equalizer 4 from a gas outlet in the heat storage stage, the gas enters a heat exchange space of the heat storage device after the flow cross section is enlarged, the gas exchanges heat with the heat storage body in the heat storage device, the gas passes through the ash discharge channel 5 after being heated, smoke dust is settled to the bottom ash discharge valve, the gas enters the heat exchange space, the gas is further heated, and finally the gas is discharged through the other flow equalizer.
The utility model is suitable for a heat storage device of dust-containing smoke, in particular to a cement kiln and a steel production line with larger dust content, which is easy to exhaust dust and can not be blocked; the overall heat storage cost is low due to the uncomplicated structure and the low cost of the heat storage material. Obtain flow length through thermodynamic calculation, must guarantee that heat storage device's heat transfer space length is about 20 meters, if adopt current heat storage device and heat-retaining mode, the whole area of so equipment is great, if adopt the utility model discloses a structure, heat storage device's heat-retaining space is for keeping apart the setting side by side, both can shorten the volume in heat-retaining space, can arrange the ash in the bottom again.
The utility model discloses a set up the ash discharge passageway under the heat-retaining device, can also arrange the ash when carrying out the heat-retaining to gas, be applicable to the great cement kiln of dust content and steel production line, the in-process of heat transfer easily arranges the dirt and can not take place to block up. And simultaneously, the utility model discloses a highly lower, be convenient for installation and maintenance, the homogeneity in inside flow field is good.
Claims (6)
1. Modular heat-retaining unit, its characterized in that includes:
the heat storage device (2) is internally provided with two independent heat exchange spaces in parallel, and the top of each heat exchange space is provided with an opening for gas to pass through;
the ash discharge channel (5) is arranged at the bottom of the heat storage device (2) and is used for communicating the two heat exchange spaces, and an ash discharge valve (7) is arranged at the bottom of the ash discharge channel;
wherein, a heat transfer space, ash discharge channel (5) and another heat transfer space constitute gaseous flow channel in proper order, every the heat transfer space is used for gas heat-retaining or exothermic, ash discharge channel (5) are arranged in providing the deposit space of dust in the gas, and pass through dust discharge valve (7) are discharged the dust.
2. The combined heat storage unit of claim 1 wherein a current equalizer (4) is connected to the top of each heat exchange space, and the current equalizer (4) comprises:
a gas channel (41) which is of a hollow cavity structure;
a platform body structure (42) flow equalizes, for with the big end down's of gas passage intercommunication hollow platform body structure, its inside is equipped with horizontal and vertical crisscross a plurality of vertical to trapezoidal baffles, form the vertical to gas flow channel who is used for the gas that flow equalizes between the baffle.
3. The combined heat storage unit according to claim 1 or 2, characterized in that the ash discharge channel (5) comprises three layers of arc-shaped plates (51) arranged in sequence at intervals from outside to inside, wherein the bottoms of the two layers of arc-shaped plates (51) positioned inside are uniformly provided with a plurality of ash discharge holes (52), the bottom of the arc-shaped plate (51) positioned outermost is provided with an ash discharge groove (53) in an outward protruding manner, and the tops of the three layers of arc-shaped plates (51) are communicated with the bottom of the heat storage device (2).
4. Combined heat storage unit according to claim 3, characterised in that the ash chute (53) is arranged horizontally at the bottom of the middle of the outermost curved plate (51) and extends in a direction perpendicular to the chord length direction of the curved plate (51).
5. Combined heat storage unit according to claim 1 or 2, characterized in that a vertical partition (8) is arranged in the heat storage device (2) to separate two separate heat exchange spaces.
6. The combined heat storage unit according to claim 1 or 2, wherein the heat storage body in the heat storage device (2) is one or a combination of more of a stacked clay brick heat storage body, a checker brick heat storage body, a rod bundle heat storage body, a flat plate heat storage body and a shell and tube heat storage body.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922386306.6U CN211782952U (en) | 2019-12-26 | 2019-12-26 | Combined heat storage unit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922386306.6U CN211782952U (en) | 2019-12-26 | 2019-12-26 | Combined heat storage unit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN211782952U true CN211782952U (en) | 2020-10-27 |
Family
ID=72979570
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201922386306.6U Active CN211782952U (en) | 2019-12-26 | 2019-12-26 | Combined heat storage unit |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN211782952U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114136132A (en) * | 2021-12-29 | 2022-03-04 | 思安新能源股份有限公司 | Flue gas cleaning heat transfer solid heat storage device |
-
2019
- 2019-12-26 CN CN201922386306.6U patent/CN211782952U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114136132A (en) * | 2021-12-29 | 2022-03-04 | 思安新能源股份有限公司 | Flue gas cleaning heat transfer solid heat storage device |
| CN114136132B (en) * | 2021-12-29 | 2024-05-17 | 思安新能源股份有限公司 | Clean heat transfer solid heat storage device of flue gas |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN102257101A (en) | Method for cyclically operating coke oven banks from "heat recovery" coke oven chambers | |
| CN211782952U (en) | Combined heat storage unit | |
| CN103954143B (en) | Bootstrap system for rotary cement kiln | |
| CN101307985B (en) | Calcining method and calcining device | |
| CN111043888A (en) | Combined heat storage unit | |
| CN214842685U (en) | Horizontal type staggered heat storage device based on heat pipes | |
| CN112577347A (en) | Horizontal parallel heat storage device based on heat pipes and working method thereof | |
| CN103740381B (en) | Transverse continuous heating system of coke oven | |
| CN211451996U (en) | Combined heat storage device | |
| CN214308302U (en) | Horizontal parallel arrangement heat storage device based on heat pipes | |
| CN201779983U (en) | Heat accumulating-type combustion reformed heating furnace | |
| CN211853961U (en) | Bagasse boiler | |
| CN100557329C (en) | A kind of windspout segregated combustion heat-storing tubular oven | |
| CN110953910A (en) | Combined heat storage device | |
| CN210035446U (en) | Fluidized bed boiler capable of using low-heat value fuel | |
| CN209493320U (en) | Regenerating active carbon system | |
| CN207362141U (en) | Downdraft radiant tube biomass pyrolytic charcoal processing stove | |
| CN206521432U (en) | A kind of fine coal heat storage type pyrolysis reaction system | |
| CN206478619U (en) | A kind of regenerative combustion type gas heating pipe steam generator | |
| CN201672675U (en) | Fluid bed oil and water double-medium circulation boiler | |
| CN211782951U (en) | Vertical heat storage tower | |
| CN103834417A (en) | Transverse continuous heating and vertical coke discharging type tamping coke oven | |
| CN220618810U (en) | Novel coke oven chute structure | |
| CN211570539U (en) | Coke oven and coking system | |
| CN211227009U (en) | Coke oven |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |