CN103868132A - Copper plant low-grade waste heat recovery system for urban central heating - Google Patents
Copper plant low-grade waste heat recovery system for urban central heating Download PDFInfo
- Publication number
- CN103868132A CN103868132A CN201410128289.5A CN201410128289A CN103868132A CN 103868132 A CN103868132 A CN 103868132A CN 201410128289 A CN201410128289 A CN 201410128289A CN 103868132 A CN103868132 A CN 103868132A
- Authority
- CN
- China
- Prior art keywords
- water
- recovery device
- heat recovery
- waste
- heat exchanger
- 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.)
- Granted
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
- Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
- Y02B30/00—Energy efficient heating, ventilation or air conditioning [HVAC]
- Y02B30/12—Hot water central heating systems using heat pumps
-
- 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
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P10/00—Technologies related to metal processing
- Y02P10/25—Process efficiency
-
- 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
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P80/00—Climate change mitigation technologies for sector-wide applications
- Y02P80/10—Efficient use of energy, e.g. using compressed air or pressurized fluid as energy carrier
- Y02P80/15—On-site combined power, heat or cool generation or distribution, e.g. combined heat and power [CHP] supply
Landscapes
- Drying Of Solid Materials (AREA)
- Waste-Gas Treatment And Other Accessory Devices For Furnaces (AREA)
Abstract
The invention relates to a copper plant low-grade waste heat recovery system for urban central heating. The copper plant low-grade waste heat recovery system is characterized by comprising a primary network circulating pump and a copper plant waste heat recovery device, wherein primary network return water from a primary pipe network flows into the copper plant waste heat recovery device through the primary network circulating pump, the copper plant waste heat recovery device collects waste heat in a copper plant, the waste heat is used for heating the primary network return water, and after the temperature rises, the primary network return water is supplied to a user in the form of primary network water supply; the copper plant waste heat recovery device comprises an austenitic furnace wall waste heat recovery device, a converter body waste heat recovery device, a drying tower waste heat recovery device, an absorption tower waste heat recovery device, a slag pool waste heat recovery device and a copper plant steam waste heat recovery device, wherein the austenitic furnace wall waste heat recovery device, the converter body waste heat recovery device and the drying tower waste heat recovery device are arranged in parallel, and the absorption tower waste heat recovery device, the slag pool waste heat recovery device and the copper plant steam waste heat recovery device are connected in series with the three waste heat recovery devices which are connected in parallel. The copper plant low-grade waste heat recovery system can be widely applied to recovery of low-grade waste heat in the copper plant.
Description
Technical field
The present invention relates to a kind of residual neat recovering system, particularly about a kind of copper work low grade residual heat recovery system for concentrated supply of heating in the city.
Background technology
Along with the propelling at full speed of Urbanization Process In China, the scale of concentrated supply of heating in the city constantly expands, and causes the deficiency of central heating thermal source capacity.Newly-built regional boiler room investment is high, and the construction period is long, and is subject to the restriction of environmental carrying capacity; Considering the demand to Air Pollution Control, also can only suit measures to local conditions to develop in small gas boiler room; In conjunction with the present situation of combustion gas, power generation and supply, most cities is also not suitable for adopting the mode of combustion gas or electric power to carry out central heating.Heat source is in short supply has become problem demanding prompt solution in the central heating of cities of Northern China.
" copper smelting by pyrometallurgy ", as a kind of copper smelting process of maturation, is the main method of world today's production of copper.In continuous production practices process, the waste heat of the middle high-grade (being mainly more than 200 DEG C) producing for " copper smelting by pyrometallurgy " technique has carried out effective utilization, improve the heat utilization efficiency of this technique primary energy, for example outlet of still smoke and waste steam boiler difficult to understand, acid-making process conversion section sulfur trioxide fume afterheat utilization etc.But be limited to technique itself, and lower than the waste heat of 200 DEG C, particularly can only directly be thrown into atmosphere as used heat lower than the low grade residual heat of 100 DEG C, make the primary energy heat utilization efficiency low (generally less than 40%) of copper smelting process.The low grade residual heat that copper smelting process produces mainly comprises: the stove difficult to understand furnace wall waste heat in smelting process, converter body waste heat; Near slag pond waste heat fire grate cinder notch difficult to understand; Absorption tower waste heat, dry sour waste heat etc. in acid-making process.These low grade residual heats scatter and disappear at cooling tower place by cooling water evaporation mostly, not only expend electric power for driving blower fan of cooling tower to rotate, and have expended more in vain a large amount of cooling waters.
Summary of the invention
For the problems referred to above, the object of this invention is to provide a kind of copper work low grade residual heat recovery system for concentrated supply of heating in the city that can significantly improve primary energy heat utilization efficiency, compared with the heating system of the conventional heat resource form such as coal-burning boiler system, co-generation unit, the waste heat that adopts the present invention to reclaim can be for central heating system provides heat on the basis that additionally consumes hardly primary energy, thereby effectively alleviate the situation that concentrated supply of heating in the city thermal source is in short supply.
For achieving the above object, the present invention takes following technical scheme: a kind of copper work low grade residual heat recovery system for concentrated supply of heating in the city, is characterized in that: it comprises waste-heat recovery device in a secondary net circulating pump and copper work; A secondary net backwater from a pipe network flows into waste-heat recovery device in described copper work by a described secondary net circulating pump, in described copper work, in waste-heat recovery device collection copper work, waste heat is used for heating a secondary net backwater, and the form that the secondary net backwater after heat absorption heats up supplies water with a secondary net offers user.
In described copper work, waste-heat recovery device comprises steam afterheat recovery device in stove difficult to understand furnace wall waste-heat recovery device, converter body waste-heat recovery device, drying tower waste-heat recovery device, absorption tower waste-heat recovery device, slag pond waste-heat recovery device and copper work; After described stove difficult to understand furnace wall waste-heat recovery device, converter body waste-heat recovery device and the parallel connection of drying tower waste-heat recovery device, connect with steam afterheat recovery device in described absorption tower waste-heat recovery device, slag pond waste-heat recovery device and copper work successively again.
Described stove difficult to understand furnace wall waste-heat recovery device comprises entrance control valve, water-water heat exchanger, outlet regulating valve, cooling tower top waterpipe valve, cooling tower, pond of cooling tower pipeline valve, cooling water circulating pump and stove difficult to understand furnace wall; Described entrance control valve is arranged on the first arrival end of described water-water heat exchanger, and described outlet regulating valve is arranged on first port of export of described water-water heat exchanger; Second port of export of described water-water heat exchanger accesses in described cooling tower by pipeline and described cooling tower top waterpipe valve, and be connected with the pond of described cooling tower with described pond of cooling tower pipeline valve by pipeline, the pond of described cooling tower is connected with the arrival end of described stove difficult to understand furnace wall with described cooling water circulating pump by pipeline, and the port of export of described stove difficult to understand furnace wall is connected with the second arrival end of described water-water heat exchanger.
Described drying tower waste-heat recovery device comprises entrance control valve, water-water heat exchanger, outlet regulating valve, cooling tower top waterpipe valve, cooling tower, pond of cooling tower pipeline valve, cooling water circulating pump, acid-water-to-water heat exchanger, drying tower and sour pump, described entrance control valve is arranged on the first arrival end of described water-water heat exchanger, and described outlet regulating valve is arranged on first port of export of described water-water heat exchanger, second port of export of described water-water heat exchanger accesses in described cooling tower by pipeline and described cooling tower top waterpipe valve, and be connected with the pond of described cooling tower with described pond of cooling tower pipeline valve by pipeline, the pond of described cooling tower is connected with the first arrival end of described acid-water-to-water heat exchanger with described cooling water circulating pump by pipeline, first port of export of described acid-water-to-water heat exchanger is connected with the second arrival end of described water-water heat exchanger, second port of export of described acid-water-to-water heat exchanger is connected with the arrival end of described drying tower, the port of export of described drying tower is connected with the second arrival end of acid-water-to-water heat exchanger by described sour pump.
Described absorption tower waste-heat recovery device comprises entrance control valve, water-water heat exchanger, outlet regulating valve, cooling tower top waterpipe valve, cooling tower, pond of cooling tower pipeline valve, cooling water circulating pump, acid-water-to-water heat exchanger, absorption tower and sour pump, described entrance control valve is arranged on the first arrival end of described water-water heat exchanger, and described outlet regulating valve is arranged on first port of export of described water-water heat exchanger, second port of export of described water-water heat exchanger accesses in described cooling tower by pipeline and described cooling tower top waterpipe valve, and be connected with the pond of described cooling tower with described pond of cooling tower pipeline valve by pipeline, the pond of described cooling tower is connected with the first arrival end of described acid-water-to-water heat exchanger with described cooling water circulating pump by pipeline, first port of export of described acid-water-to-water heat exchanger is connected with the second arrival end of described water-water heat exchanger, second port of export of described acid-water-to-water heat exchanger is connected with the arrival end on described absorption tower, the port of export on described absorption tower is connected with the second arrival end of acid-water-to-water heat exchanger by described sour pump.
Described slag pond waste-heat recovery device comprises entrance control valve, slag water-water heat exchanger, outlet regulating valve, cooling water circulating pump and slag pond; Described entrance control valve is arranged on the first arrival end of described slag water-water heat exchanger, and described outlet regulating valve is arranged on first port of export of described slag water-water heat exchanger; Second port of export of described slag water-water heat exchanger is connected with the arrival end in slag pond by described cooling water circulating pump, and the port of export in described slag pond is connected with the second arrival end of described slag water-water heat exchanger.
In described copper work, steam afterheat recovery device comprises entrance control valve, vapour water-water heat exchanger, outlet regulating valve; Described entrance control valve is arranged on the arrival end of described vapour water-water heat exchanger, and described outlet regulating valve is arranged on the port of export of described vapour water-water heat exchanger; The secondary net backwater flowing out from described slag pond waste-heat recovery device flows into described vapour water-water heat exchanger by pipeline and described entrance control valve, absorbs steam in copper work and flow out steam afterheat recovery device in described copper work by pipeline and described outlet regulating valve after heating up in described vapour water-water heat exchanger; In copper work, after steam heat release cooling, flow out described vapour water-water heat exchanger to coagulate the form of water.
In described copper work, waste-heat recovery device comprises steam afterheat recovery device in stove difficult to understand furnace wall waste-heat recovery device, converter body waste-heat recovery device, drying tower waste-heat recovery device, absorption tower waste-heat recovery device, slag pond waste-heat recovery device and copper work; After described absorption tower waste-heat recovery device is connected with the parallel-connection structure of described stove difficult to understand furnace wall waste-heat recovery device, converter body waste-heat recovery device and drying tower waste-heat recovery device, then connect with steam afterheat recovery device in described slag pond waste-heat recovery device and copper work successively.
One secondary net backwater side of the water-water heat exchanger of described stove difficult to understand furnace wall waste-heat recovery device, converter body waste-heat recovery device and drying tower waste-heat recovery device is all connected an absorption heat pump; Described absorption heat pump comprises absorption heat pump absorber, absorption heat pump condenser, absorption heat pump evaporimeter and absorption heat pump generator; In described stove difficult to understand furnace wall waste-heat recovery device, converter body waste-heat recovery device and drying tower waste-heat recovery device, the connected mode of described absorption heat pump is identical, it is specially: described entrance control valve is arranged on the arrival end of described absorption heat pump absorber, the port of export of described absorption heat pump absorber connects the arrival end of described absorption heat pump condenser, and the port of export of described absorption heat pump condenser connects described outlet regulating valve; First port of export of described water-water heat exchanger connects the arrival end of described absorption heat pump evaporimeter, the port of export of described absorption heat pump evaporimeter is connected with the first arrival end of described water-water heat exchanger by a demineralized water circulation pump, in copper work, steam enters in described absorption heat pump by the arrival end of described absorption heat pump generator, and flows out from the port of export of described absorption heat pump generator with the form of coagulating water after heat release cooling.
Be arranged in parallel bypass pipe at the arrival end of each described entrance control valve and the port of export place of described outlet regulating valve, and on described bypass pipe, be provided for the valve of waterway switching.
The present invention is owing to taking above technical scheme, it has the following advantages: 1, the present invention is owing to adopting waste-heat recovery device in copper work to collect Nei Aolu furnace wall, copper work, converter body, drying tower, absorption tower, the low grade residual heat of steam in slag pond and copper work, flow into the secondary net backwater in copper work for heating by a secondary net circulating pump, the form that a secondary net backwater after heat absorption heats up supplies water with a secondary net offers user, therefore the present invention can be in the situation that not consuming extra primary energy substantially, absorb in copper work low grade residual heat and provide heat for central heating system, thereby effectively alleviate the situation that concentrated supply of heating in the city thermal source is in short supply.2, the present invention is owing to adopting stove difficult to understand furnace wall waste-heat recovery device, converter body waste-heat recovery device and drying tower waste-heat recovery device to reclaim in copper work compared with low grade residual heat, adopt absorption tower waste-heat recovery device and slag pond waste-heat recovery device to reclaim in copper work compared with high-grade waste heat, adopt steam afterheat recovery device in copper work to absorb the waste heat approaching with a secondary net return water temperature, therefore in copper work of the present invention, waste heat recovery rate is high.3, the present invention is because the water that adopts cooling tower in the production technology of former copper work absorbs low grade residual heat in copper work as medium, and the heat of absorption is passed to a secondary net backwater, the form that a secondary net backwater after heat temperature raising supplies water with a secondary net offers user, therefore the present invention can save in a large number industrial water in low grade residual heat removal process in copper work, reduces blower fan of cooling tower power consumption.4, the present invention is because the arrival end of the entrance control valve of waste-heat recovery device in copper work and the port of export place of outlet regulating valve are arranged in parallel bypass pipe, and on bypass pipe, be provided for the valve of waterway switching, therefore the present invention can ensure that copper work produces while there is the significantly underproduction, and the temperature of each waste heat thermal source is unaffected; And while there is stop production to overhaul in copper work, a secondary net backwater can be without each waste heat thermal source, thereby avoid occurring due to the too low situation that causes each waste heat thermal source to take away a secondary net backwater heat of each waste heat heat source temperature.Based on above advantage, the present invention can be widely used in copper work during low grade residual heat reclaims.
Brief description of the drawings
Fig. 1 is secondary net return water temperature structural representation of the present invention when lower
Fig. 2 is secondary net return water temperature structural representation of the present invention when higher
Fig. 3 is the structural representation of secondary net return water temperature stove difficult to understand furnace wall waste-heat recovery device when lower
Fig. 4 is the structural representation of secondary net return water temperature drying tower waste-heat recovery device when lower
Fig. 5 is that a secondary net return water temperature is compared with the structural representation of Gao Shiao stove furnace wall waste-heat recovery device
Fig. 6 is the structural representation of secondary net return water temperature drying tower waste-heat recovery device when higher
Fig. 7 is the structural representation of slag pond waste-heat recovery device
Fig. 8 is the structural representation of steam afterheat recovery device in copper work
Detailed description of the invention
Below in conjunction with drawings and Examples, the present invention is described in detail.
As shown in Figure 1 and Figure 2, copper work of the present invention low grade residual heat recovery system comprises waste-heat recovery device 2 in a secondary net circulating pump 1 and copper work.Flow in copper work waste-heat recovery device 2, one secondary net circulating pumps 1 for the drag losses in heat exchange water route in balance copper work from a secondary net backwater of a pipe network (not shown) by a secondary net circulating pump 1.In copper work, waste-heat recovery device 2 is collected in copper work waste heat for heating a secondary net backwater, and the form that the secondary net backwater after heat absorption heats up supplies water with a secondary net offers user.
Wherein, in copper work, waste-heat recovery device 2 comprises steam afterheat recovery device 26 in stove difficult to understand furnace wall waste-heat recovery device 21, converter body waste-heat recovery device 22, drying tower waste-heat recovery device 23, absorption tower waste-heat recovery device 24, slag pond waste-heat recovery device 25 and copper work.After stove difficult to understand furnace wall waste-heat recovery device 21, converter body waste-heat recovery device 22 and 23 parallel connections of drying tower waste-heat recovery device, connect with steam afterheat recovery device 26 in absorption tower waste-heat recovery device 24, slag pond waste-heat recovery device 25 and copper work again.
Embodiment 1: as shown in Figure 1, one secondary net return water temperature is lower below 30 DEG C time, carry out " step heating " principle, first, a secondary net backwater that enters copper work is divided into first strand～a 3rd strand secondary net backwater in parallel, and three strand of one secondary net backwater flows into respectively in stove difficult to understand furnace wall waste-heat recovery device 21, converter body waste-heat recovery device 22 and drying tower waste-heat recovery device 23; Secondly, three strand of one secondary net backwater carries out heat exchange with stove difficult to understand furnace wall, converter body and three generations of drying tower compared with the thermal source of low grade residual heat respectively; Again, three strand of one secondary net water absorbs compared with converging into one after low grade residual heat and flows into successively in absorption tower waste-heat recovery device 24, slag pond waste-heat recovery device 25 and absorb compared with high-grade waste heat; Finally, the secondary net water flowing out from slag pond waste-heat recovery device 25 further absorbs the heat of the above mesohigh steam of 0.5MPa in copper work by steam afterheat recovery device in copper work 26, and the form supplying water with a secondary net offers user.
In above-described embodiment 1, as shown in Figure 3, stove difficult to understand furnace wall waste-heat recovery device 21 comprises entrance control valve 211, water-water heat exchanger 212, outlet regulating valve 213, cooling tower top waterpipe valve 214, cooling tower 215, pond of cooling tower pipeline valve 216, cooling water circulating pump 217 and stove difficult to understand furnace wall 218.Entrance control valve 211 is arranged on the first arrival end of water-water heat exchanger 212, and outlet regulating valve 213 is arranged on first port of export of water-water heat exchanger 212.Second port of export of water-water heat exchanger 212 accesses in cooling tower 215 by pipeline and cooling tower top waterpipe valve 214, and be connected with the pond of cooling tower 215 with pond of cooling tower pipeline valve 216 by pipeline, the pond of cooling tower 215 is connected with the arrival end of stove difficult to understand furnace wall 218 with cooling water circulating pump 217 by pipeline, and the port of export of stove difficult to understand furnace wall 218 is connected with the second arrival end of water-water heat exchanger 212.
In the process of recovery smelting process low grade residual heat, one secondary net backwater and cooling water are realized one deck heat exchange by water-water heat exchanger 212, its concrete heat transfer process is: first strand of one secondary net backwater flows into water-water heat exchanger 212 by pipeline and entrance control valve 211, the cooling water in cooling tower 215 ponds is delivered to stove difficult to understand furnace wall 218 by cooling water circulating pump 217, cooling water absorbs after waste heat heats up and flows into water-water heat exchanger 212 in stove difficult to understand furnace wall 218, one secondary net backwater and the cooling water absorbing after waste heat heats up carry out heat exchange in water-water heat exchanger 212, after the heat of one secondary net backwater absorption cooling water, flow out stove difficult to understand furnace wall waste-heat recovery device 21 by pipeline and outlet regulating valve 213, cooling water after cooling returns to cooling tower 215.If the heat of cooling water is all absorbed by a secondary net backwater in water-water heat exchanger 212, close cooling tower top waterpipe valve 214, open pond of cooling tower pipeline valve 216, cooling water does not need through cooling tower 215 cooling and flow directly into the pond of cooling tower 215, if the heat of cooling water is not all absorbed by a secondary net backwater in water-water heat exchanger 212, open cooling overhead water pipeline valve 214 and pond of cooling tower pipeline valve 216 simultaneously, and regulate the aperture of cooling tower top waterpipe valve 214 and pond of cooling tower pipeline valve 216, part cooling water is entered in cooling tower 215, carry out cooling, part cooling water is cooling and directly enter the pond of cooling tower 215 without cooling tower 215, adjust through the cooling water yield of cooling tower 215, guarantee waste heat heat is all taken away by a secondary net backwater and cooling tower 215, thereby ensure the safety of copper work production technology.In addition, for preventing freeze in winter, cooling tower top waterpipe valve 214 remains certain aperture, guarantee to have a small amount of hot water by and do not produce freezing.
In above-described embodiment 1, converter body waste-heat recovery device 22 is similar with stove difficult to understand furnace wall waste-heat recovery device 21, difference is: the waste heat thermal source in converter body waste-heat recovery device 22 is converter body, and second strand of one secondary net backwater absorbs the waste heat of converter body in converter body waste-heat recovery device 22.
In above-described embodiment 1, as shown in Figure 4, drying tower waste-heat recovery device 23 is similar with stove difficult to understand furnace wall waste-heat recovery device 21, comprises entrance control valve 211, water-water heat exchanger 212, outlet regulating valve 213, cooling tower top waterpipe valve 214, cooling tower 215, pond of cooling tower pipeline valve 216 and cooling water circulating pump 217; Difference is: drying tower waste-heat recovery device 23 also comprises acid-water-to-water heat exchanger 231, drying tower 232 and sour pump 233.Entrance control valve 211 is arranged on the first arrival end of water-water heat exchanger 212, and outlet regulating valve 213 is arranged on first port of export of water-water heat exchanger 212.Second port of export of water-water heat exchanger 212 accesses in cooling tower 215 by pipeline and cooling tower top waterpipe valve 214, and be connected with the pond of cooling tower 215 with pond of cooling tower pipeline valve 216 by pipeline, the pond of cooling tower 215 is connected with the first arrival end of acid-water-to-water heat exchanger 231 with cooling water circulating pump 217 by pipeline, first port of export of acid-water-to-water heat exchanger 231 is connected with the second arrival end of water-water heat exchanger 212, second port of export of acid-water-to-water heat exchanger 231 is connected with the arrival end of drying tower 232, the port of export of drying tower 232 is connected with the second arrival end of acid-water-to-water heat exchanger 231 by sour pump 233.
In the process of recovery acid-making process low grade residual heat, one secondary net backwater and cooling water are realized two-layer heat exchange by water-water heat exchanger 212 and acid-water-to-water heat exchanger 231, its concrete heat transfer process is: one in the 3rd strand of one secondary net backwater flows into water-water heat exchanger 212 by pipeline and entrance control valve 211, the cooling water in cooling tower 215 ponds is delivered to acid-water-to-water heat exchanger 231 by cooling water circulating pump 217, after heating up, the waste heat of cooling water absorption dehydration tower 232 in acid-water-to-water heat exchanger 231 flows into water-water heat exchanger 212, one secondary net backwater and the cooling water absorbing after waste heat heats up carry out heat exchange in water-water heat exchanger 212, after the heat of one secondary net backwater absorption cooling water, flow out drying tower waste-heat recovery device 23 by pipeline and outlet regulating valve 213, cooling water after cooling returns to cooling tower 215.If the heat of cooling water is all absorbed by a secondary net backwater in water-water heat exchanger 212, close cooling tower top waterpipe valve 214, open pond of cooling tower pipeline valve 216, cooling water does not need through cooling tower 215 cooling and flow directly into the pond of cooling tower 215, if the heat of cooling water is not all absorbed by a secondary net backwater in water-water heat exchanger 212, open cooling overhead water pipeline valve 214 and pond of cooling tower pipeline valve 216 simultaneously, and regulate the aperture of cooling tower top waterpipe valve 214 and pond of cooling tower pipeline valve 216, part cooling water is entered in cooling tower 215, carry out cooling, part cooling water is cooling and directly enter the pond of cooling tower 215 without cooling tower 215, adjust through the cooling water yield of cooling tower 215, guarantee waste heat heat is all taken away by a secondary net backwater and cooling tower 215, thereby ensure the safety of copper work production technology.
In above-described embodiment 1, absorption tower waste-heat recovery device 24 is similar with drying tower waste-heat recovery device 23, and difference is: the waste heat thermal source of absorption tower waste-heat recovery device 24 is absorption tower, and absorption tower waste-heat recovery device 24 is for reclaiming the waste heat on absorption tower.
2: one secondary net return water temperatures of embodiment are higher more than 30 DEG C, particularly when 45 DEG C of left and right, as shown in Figure 2, carry out " step heating " principle.First, a secondary net backwater that enters copper work flows in absorption tower waste-heat recovery device 24, after heating up, is divided into first strand～a 3rd strand secondary net backwater in parallel in absorption absorption tower compared with high-grade waste heat; Secondly, three strand of one secondary net backwater flows into respectively in stove difficult to understand furnace wall waste-heat recovery device 21, converter body waste-heat recovery device 22 and drying tower waste-heat recovery device 23, absorb respectively that stove difficult to understand furnace wall 218, converter body and drying tower 232 produce compared with low grade residual heat and heat up; Again, absorb three strand of one secondary net water compared with low grade residual heat and after heating up and converge into one and flow in slag pond waste-heat recovery device 25, in the waste-heat recovery device 25 of absorption furnace pulp water pond, slag pond produces compared with high-grade waste heat; Finally, the secondary net water flowing out from slag pond waste-heat recovery device 25 further absorbs the heat of the above mesohigh steam of 0.5MPa in copper work by steam afterheat recovery device in copper work 26, and the form supplying water with a secondary net offers user.
In above-described embodiment 2, as shown in Figure 5, Figure 6, because the waste heat grade of stove difficult to understand furnace wall 218, converter body and drying tower 232 is lower, therefore need to all be connected an absorption heat pump 219 in a secondary net backwater side of the water-water heat exchanger 212 of the furnace wall of stove difficult to understand shown in Fig. 3 waste-heat recovery device 21, converter body waste-heat recovery device 22 and the waste-heat recovery device of drying tower shown in Fig. 4 23.Wherein, absorption heat pump 219 comprises absorption heat pump absorber 2191, absorption heat pump condenser 2192, absorption heat pump evaporimeter 2193 and absorption heat pump generator 2194.In stove difficult to understand furnace wall waste-heat recovery device 21, converter body waste-heat recovery device 22 and drying tower waste-heat recovery device 23, the connected mode of absorption heat pump 219 is identical, it is specially: entrance control valve 211 is arranged on the arrival end of absorption heat pump absorber 2191, the port of export of absorption heat pump absorber 2191 connects the arrival end of absorption heat pump condenser 2192, the port of export connection outlet control valve 213 of absorption heat pump condenser 2192.First port of export of water-water heat exchanger 212 connects the arrival end of absorption heat pump evaporimeter 2193, the port of export of absorption heat pump evaporimeter 2193 is connected with the first arrival end of water-water heat exchanger 212 by a demineralized water circulation pump 220, in copper work, steam enters in absorption heat pump 219 by the arrival end of absorption heat pump generator 2194, and flows out from the port of export of absorption heat pump generator 2194 with the form of coagulating water after heat release cooling.
In the various embodiments described above, as shown in Figure 7, slag pond waste-heat recovery device 25 comprises entrance control valve 211, slag water-water heat exchanger 251, outlet regulating valve 213, cooling water circulating pump 217 and slag pond 252.Entrance control valve 211 is arranged on the first arrival end of slag water-water heat exchanger 251, and outlet regulating valve 213 is arranged on first port of export of slag water-water heat exchanger 251.Second port of export of slag water-water heat exchanger 251 is connected with the arrival end in slag pond 252 by cooling water circulating pump 217, and the port of export in slag pond 252 is connected with the second arrival end of slag water-water heat exchanger 251.
The secondary net backwater flowing out from absorption tower waste-heat recovery device 24 flows in slag water-water heat exchanger 251 by pipeline and entrance control valve 211, slag water in slag water-water heat exchanger 251 flows into slag pond 252 by cooling water circulating pump 217, after heating up, the waste heat in slag water absorption furnace pulp water pond 252 flows into slag water-water heat exchanger 251, one secondary net backwater and the slag water absorbing after waste heat heats up carry out heat exchange in slag water-water heat exchanger 251, after the heat of a secondary net backwater absorption furnace pulp water, flow out slag pond waste-heat recovery device 25 by pipeline and outlet regulating valve 213.
In the various embodiments described above, as shown in Figure 8, in copper work, steam afterheat recovery device 26 comprises entrance control valve 211, vapour water-water heat exchanger 261, outlet regulating valve 213.Entrance control valve 211 is arranged on the arrival end of vapour water-water heat exchanger 261, and outlet regulating valve 213 is arranged on the port of export of vapour water-water heat exchanger 261.The secondary net backwater flowing out from slag pond waste-heat recovery device 25 flows into vapour water-water heat exchanger 261 by pipeline and entrance control valve 211, absorbs steam in copper work and flow out steam afterheat recovery device 26 in copper work by pipeline and outlet regulating valve 213 after heating up in vapour water-water heat exchanger 261.In copper work, after steam heat release cooling, flow out vapour water-water heat exchanger 261 with the form of coagulating water.
In the various embodiments described above, as shown in Fig. 3～Fig. 8, be arranged in parallel bypass pipe 27 at the arrival end of each entrance control valve 211 and the port of export place of outlet regulating valve 213, and on bypass pipe 27, be provided for the valve 28 of waterway switching, can ensure that like this copper work produces while there is the significantly underproduction, the water yield of one secondary net backwater of minimizing and the heat exchange of each waste heat thermal source, ensures that the temperature of each waste heat thermal source is unaffected; And while there is stop production to overhaul in copper work, a secondary net backwater can be without each waste heat thermal source, thereby avoid occurring due to the too low situation that causes each waste heat thermal source to take away a secondary net backwater heat of each waste heat heat source temperature.
The various embodiments described above are only for illustrating the present invention, and wherein structure and the connected mode etc. of each parts all can change to some extent, and every equivalents of carrying out on the basis of technical solution of the present invention and improvement, all should not get rid of outside protection scope of the present invention.
Claims (10)
1. for a copper work low grade residual heat recovery system for concentrated supply of heating in the city, it is characterized in that: it comprises waste-heat recovery device in a secondary net circulating pump and copper work; A secondary net backwater from a pipe network flows into waste-heat recovery device in described copper work by a described secondary net circulating pump, in described copper work, in waste-heat recovery device collection copper work, waste heat is used for heating a secondary net backwater, and the form that the secondary net backwater after heat absorption heats up supplies water with a secondary net offers user.
2. a kind of copper work low grade residual heat recovery system for concentrated supply of heating in the city as claimed in claim 1, is characterized in that: in described copper work, waste-heat recovery device comprises steam afterheat recovery device in stove difficult to understand furnace wall waste-heat recovery device, converter body waste-heat recovery device, drying tower waste-heat recovery device, absorption tower waste-heat recovery device, slag pond waste-heat recovery device and copper work; After described stove difficult to understand furnace wall waste-heat recovery device, converter body waste-heat recovery device and the parallel connection of drying tower waste-heat recovery device, connect with steam afterheat recovery device in described absorption tower waste-heat recovery device, slag pond waste-heat recovery device and copper work successively again.
3. a kind of copper work low grade residual heat recovery system for concentrated supply of heating in the city as claimed in claim 2, is characterized in that: described stove difficult to understand furnace wall waste-heat recovery device comprises entrance control valve, water-water heat exchanger, outlet regulating valve, cooling tower top waterpipe valve, cooling tower, pond of cooling tower pipeline valve, cooling water circulating pump and stove difficult to understand furnace wall; Described entrance control valve is arranged on the first arrival end of described water-water heat exchanger, and described outlet regulating valve is arranged on first port of export of described water-water heat exchanger; Second port of export of described water-water heat exchanger accesses in described cooling tower by pipeline and described cooling tower top waterpipe valve, and be connected with the pond of described cooling tower with described pond of cooling tower pipeline valve by pipeline, the pond of described cooling tower is connected with the arrival end of described stove difficult to understand furnace wall with described cooling water circulating pump by pipeline, and the port of export of described stove difficult to understand furnace wall is connected with the second arrival end of described water-water heat exchanger.
4. a kind of copper work low grade residual heat recovery system for concentrated supply of heating in the city as claimed in claim 2 or claim 3, is characterized in that: described drying tower waste-heat recovery device comprises entrance control valve, water-water heat exchanger, outlet regulating valve, cooling tower top waterpipe valve, cooling tower, pond of cooling tower pipeline valve, cooling water circulating pump, acid-water-to-water heat exchanger, drying tower and sour pump, described entrance control valve is arranged on the first arrival end of described water-water heat exchanger, and described outlet regulating valve is arranged on first port of export of described water-water heat exchanger, second port of export of described water-water heat exchanger accesses in described cooling tower by pipeline and described cooling tower top waterpipe valve, and be connected with the pond of described cooling tower with described pond of cooling tower pipeline valve by pipeline, the pond of described cooling tower is connected with the first arrival end of described acid-water-to-water heat exchanger with described cooling water circulating pump by pipeline, first port of export of described acid-water-to-water heat exchanger is connected with the second arrival end of described water-water heat exchanger, second port of export of described acid-water-to-water heat exchanger is connected with the arrival end of described drying tower, the port of export of described drying tower is connected with the second arrival end of acid-water-to-water heat exchanger by described sour pump.
5. a kind of copper work low grade residual heat recovery system for concentrated supply of heating in the city as claimed in claim 2 or claim 3, is characterized in that: described absorption tower waste-heat recovery device comprises entrance control valve, water-water heat exchanger, outlet regulating valve, cooling tower top waterpipe valve, cooling tower, pond of cooling tower pipeline valve, cooling water circulating pump, acid-water-to-water heat exchanger, absorption tower and sour pump, described entrance control valve is arranged on the first arrival end of described water-water heat exchanger, and described outlet regulating valve is arranged on first port of export of described water-water heat exchanger, second port of export of described water-water heat exchanger accesses in described cooling tower by pipeline and described cooling tower top waterpipe valve, and be connected with the pond of described cooling tower with described pond of cooling tower pipeline valve by pipeline, the pond of described cooling tower is connected with the first arrival end of described acid-water-to-water heat exchanger with described cooling water circulating pump by pipeline, first port of export of described acid-water-to-water heat exchanger is connected with the second arrival end of described water-water heat exchanger, second port of export of described acid-water-to-water heat exchanger is connected with the arrival end on described absorption tower, the port of export on described absorption tower is connected with the second arrival end of acid-water-to-water heat exchanger by described sour pump.
6. a kind of copper work low grade residual heat recovery system for concentrated supply of heating in the city as described in claim 1 or 2 or 3, is characterized in that: described slag pond waste-heat recovery device comprises entrance control valve, slag water-water heat exchanger, outlet regulating valve, cooling water circulating pump and slag pond; Described entrance control valve is arranged on the first arrival end of described slag water-water heat exchanger, and described outlet regulating valve is arranged on first port of export of described slag water-water heat exchanger; Second port of export of described slag water-water heat exchanger is connected with the arrival end in slag pond by described cooling water circulating pump, and the port of export in described slag pond is connected with the second arrival end of described slag water-water heat exchanger.
7. a kind of copper work low grade residual heat recovery system for concentrated supply of heating in the city as described in claim 1 or 2 or 3, is characterized in that: in described copper work, steam afterheat recovery device comprises entrance control valve, vapour water-water heat exchanger, outlet regulating valve; Described entrance control valve is arranged on the arrival end of described vapour water-water heat exchanger, and described outlet regulating valve is arranged on the port of export of described vapour water-water heat exchanger; The secondary net backwater flowing out from described slag pond waste-heat recovery device flows into described vapour water-water heat exchanger by pipeline and described entrance control valve, absorbs steam in copper work and flow out steam afterheat recovery device in described copper work by pipeline and described outlet regulating valve after heating up in described vapour water-water heat exchanger; In copper work, after steam heat release cooling, flow out described vapour water-water heat exchanger to coagulate the form of water.
8. a kind of copper work low grade residual heat recovery system for concentrated supply of heating in the city as claimed in claim 1, is characterized in that: in described copper work, waste-heat recovery device comprises steam afterheat recovery device in stove difficult to understand furnace wall waste-heat recovery device, converter body waste-heat recovery device, drying tower waste-heat recovery device, absorption tower waste-heat recovery device, slag pond waste-heat recovery device and copper work; After described absorption tower waste-heat recovery device is connected with the parallel-connection structure of described stove difficult to understand furnace wall waste-heat recovery device, converter body waste-heat recovery device and drying tower waste-heat recovery device, then connect with steam afterheat recovery device in described slag pond waste-heat recovery device and copper work successively.
9. a kind of copper work low grade residual heat recovery system for concentrated supply of heating in the city as claimed in claim 8, is characterized in that: a secondary net backwater side of the water-water heat exchanger of described stove difficult to understand furnace wall waste-heat recovery device, converter body waste-heat recovery device and drying tower waste-heat recovery device is all connected an absorption heat pump; Described absorption heat pump comprises absorption heat pump absorber, absorption heat pump condenser, absorption heat pump evaporimeter and absorption heat pump generator; In described stove difficult to understand furnace wall waste-heat recovery device, converter body waste-heat recovery device and drying tower waste-heat recovery device, the connected mode of described absorption heat pump is identical, it is specially: described entrance control valve is arranged on the arrival end of described absorption heat pump absorber, the port of export of described absorption heat pump absorber connects the arrival end of described absorption heat pump condenser, and the port of export of described absorption heat pump condenser connects described outlet regulating valve; First port of export of described water-water heat exchanger connects the arrival end of described absorption heat pump evaporimeter, the port of export of described absorption heat pump evaporimeter is connected with the first arrival end of described water-water heat exchanger by a demineralized water circulation pump, in copper work, steam enters in described absorption heat pump by the arrival end of described absorption heat pump generator, and flows out from the port of export of described absorption heat pump generator with the form of coagulating water after heat release cooling.
10. a kind of copper work low grade residual heat recovery system for concentrated supply of heating in the city as described in claim 3 or 9, it is characterized in that: be arranged in parallel bypass pipe at the arrival end of each described entrance control valve and the port of export place of described outlet regulating valve, and on described bypass pipe, be provided for the valve of waterway switching.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410128289.5A CN103868132B (en) | 2014-04-01 | 2014-04-01 | A kind of copper work low grade residual heat recovery system for concentrated supply of heating in the city |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410128289.5A CN103868132B (en) | 2014-04-01 | 2014-04-01 | A kind of copper work low grade residual heat recovery system for concentrated supply of heating in the city |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103868132A true CN103868132A (en) | 2014-06-18 |
| CN103868132B CN103868132B (en) | 2016-09-21 |
Family
ID=50906949
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410128289.5A Active CN103868132B (en) | 2014-04-01 | 2014-04-01 | A kind of copper work low grade residual heat recovery system for concentrated supply of heating in the city |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN103868132B (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107327838A (en) * | 2017-08-09 | 2017-11-07 | 青岛理工大学 | A kind of slag cooler cooling water low temperature exhaust heat reclaims heat supply method |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4792091A (en) * | 1988-03-04 | 1988-12-20 | Martinez Jr George | Method and apparatus for heating a large building |
| JPH05296673A (en) * | 1992-04-24 | 1993-11-09 | Nkk Corp | Method for recovering heat from furnace slag |
| CN101435089A (en) * | 2008-12-03 | 2009-05-20 | 北京佰能电气技术有限公司 | System and method for utilizing residual heat of electrolyzer low temperature flue gas |
| CN201463204U (en) * | 2009-05-25 | 2010-05-12 | 桂林市达源空调设备工程安装有限公司 | Device for recovering residual heat from boiler exhaust gas |
| CN101858231A (en) * | 2010-04-07 | 2010-10-13 | 清华大学 | Energy supply system mainly through gas and steam combined cycle cogeneration |
| CN103060496A (en) * | 2013-01-23 | 2013-04-24 | 中冶南方工程技术有限公司 | Method and system suitable for recovering waste heat of blast furnace slag flushing water |
| CN203771515U (en) * | 2014-04-01 | 2014-08-13 | 清华大学 | Copper plant low-grade waste heat recovery system for urban central heating |
| CN203785052U (en) * | 2014-03-25 | 2014-08-20 | 灵宝华鑫铜箔有限责任公司 | Heating system utilizing copper foil to produce residual heat |
-
2014
- 2014-04-01 CN CN201410128289.5A patent/CN103868132B/en active Active
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4792091A (en) * | 1988-03-04 | 1988-12-20 | Martinez Jr George | Method and apparatus for heating a large building |
| JPH05296673A (en) * | 1992-04-24 | 1993-11-09 | Nkk Corp | Method for recovering heat from furnace slag |
| CN101435089A (en) * | 2008-12-03 | 2009-05-20 | 北京佰能电气技术有限公司 | System and method for utilizing residual heat of electrolyzer low temperature flue gas |
| CN201463204U (en) * | 2009-05-25 | 2010-05-12 | 桂林市达源空调设备工程安装有限公司 | Device for recovering residual heat from boiler exhaust gas |
| CN101858231A (en) * | 2010-04-07 | 2010-10-13 | 清华大学 | Energy supply system mainly through gas and steam combined cycle cogeneration |
| CN103060496A (en) * | 2013-01-23 | 2013-04-24 | 中冶南方工程技术有限公司 | Method and system suitable for recovering waste heat of blast furnace slag flushing water |
| CN203785052U (en) * | 2014-03-25 | 2014-08-20 | 灵宝华鑫铜箔有限责任公司 | Heating system utilizing copper foil to produce residual heat |
| CN203771515U (en) * | 2014-04-01 | 2014-08-13 | 清华大学 | Copper plant low-grade waste heat recovery system for urban central heating |
Non-Patent Citations (2)
| Title |
|---|
| 方豪、夏建军、宿颖波、于峰: "回收低品位工业余热用于城镇集中供热-赤峰案例介绍", 《区域供热》 * |
| 方豪、夏建军、江亿: "北方采暖新模式：低品位工业余热应用于城镇集中供热", 《建筑科学》 * |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107327838A (en) * | 2017-08-09 | 2017-11-07 | 青岛理工大学 | A kind of slag cooler cooling water low temperature exhaust heat reclaims heat supply method |
Also Published As
| Publication number | Publication date |
|---|---|
| CN103868132B (en) | 2016-09-21 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN202532587U (en) | System for recycling condensation heat from power plant for building heating by using heat pump | |
| CN202768090U (en) | Recovery system of dead steam waste heat | |
| CN205783992U (en) | A kind of energy conserving system utilizing heat pump heat smoke again | |
| CN102213438A (en) | Smoke exhaust system for realizing energy conservation by using coal-fired boiler flue-gas waste heat recovery and water conservation by using wet desulphurization | |
| CN203323218U (en) | Boiler flue gas waste heat heating system | |
| CN204943445U (en) | For reclaiming the system of coal steam-electric plant smoke waste heat and raising flue gas dust collection efficiency | |
| CN109945276A (en) | A kind of heat pump heating system of fume afterheat driving | |
| CN203584484U (en) | Condensate heating device of steam turbine generator unit by recycling residual heat of circulating water | |
| CN203771515U (en) | Copper plant low-grade waste heat recovery system for urban central heating | |
| CN205137498U (en) | Utilize flue gas waste heat to add hot water and water lift integration recycle device | |
| CN103994458A (en) | Composite phase change heat exchanger suitable for thermal power generating unit | |
| CN204665244U (en) | A kind of association system of phase-change heat-exchanger band heat exchangers for district heating | |
| CN204756887U (en) | High -efficient hot media water system of circulating fluidized bed boiler | |
| CN204611733U (en) | The recycling system of boiler afterheat | |
| CN102374692A (en) | Power-plant waste-heat recovering device | |
| CN103868132A (en) | Copper plant low-grade waste heat recovery system for urban central heating | |
| CN202973316U (en) | Condensation heat recycling and heating device of power plants | |
| CN205878207U (en) | Thermal power plant uses heat recovery unit | |
| CN206055665U (en) | A kind of desulfurizing waste water processing device of utilization fume afterheat | |
| CN208011750U (en) | Coal fired boiler of power plant smoke discharging residual heat and moisture reclaiming system | |
| CN205807384U (en) | A kind of MGGH condensation water heating system | |
| CN205560803U (en) | Low -grade heat recovery economizer system during smoke pollutants of thermal power plant handles | |
| CN212719812U (en) | System for utilize flue gas waste heat increase air cooling tower | |
| CN202304470U (en) | Condensation heat recovery device for generating set | |
| CN203756246U (en) | Novel auxiliary machine cooling water system used for indirect air cooling unit |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| CB02 | Change of applicant information |
Address after: 100084 Beijing, Haidian District, 100084 box office box office, Tsinghua University, Applicant after: Tsinghua University Applicant after: Chifeng ran energy Polytron Technologies Inc Address before: 100084 Beijing, Haidian District, 100084 box office box office, Tsinghua University, Applicant before: Tsinghua University Applicant before: CHIFENG HERAN ENERGY-SAVING TECHNICAL SERVICES LIMITED LIABILITY COMPANY |
|
| COR | Change of bibliographic data | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |