CN105386960A - Intelligent air compressor waste heat recovery unit with scale removal device - Google Patents
Intelligent air compressor waste heat recovery unit with scale removal device Download PDFInfo
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- CN105386960A CN105386960A CN201510937650.3A CN201510937650A CN105386960A CN 105386960 A CN105386960 A CN 105386960A CN 201510937650 A CN201510937650 A CN 201510937650A CN 105386960 A CN105386960 A CN 105386960A
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- oil
- reclaims
- heat exchanger
- heat
- gas
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
- F04B39/00—Component parts, details, or accessories, of pumps or pumping systems specially adapted for elastic fluids, not otherwise provided for in, or of interest apart from, groups F04B25/00 - F04B37/00
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F28—HEAT EXCHANGE IN GENERAL
- F28G—CLEANING OF INTERNAL OR EXTERNAL SURFACES OF HEAT-EXCHANGE OR HEAT-TRANSFER CONDUITS, e.g. WATER TUBES OR BOILERS
- F28G9/00—Cleaning by flushing or washing, e.g. with chemical solvents
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Heat-Pump Type And Storage Water Heaters (AREA)
Abstract
The invention discloses an intelligent air compressor waste heat recovery unit with a scale removal device. The unit recovers both oil gas and heat; a waste heat recovery rate reaches above 88%; the unit has two scale removal configuration modes, namely dry burning scale removal and manual pickling scale removal; the unit is equipped with an automatic detection heat exchange system to detect a heat exchange state and is equipped with an automatic instruction dry burning scale removal system to carry out scale cleaning of the unit; stable and efficient running of the unit is ensured all the time; the heat exchange efficiency of a waste heat recovery device is guaranteed and improved; the unit solves the problems of high temperature, medium pressure drop, heat exchanger scale and the like; and the unit is wide in application, and can applied to 75-95-degree hot oil and hot gas recovery of a screw-oiled air compressor, level-1 and level-2 160-200-degree hot gas recovery of a screw oil-free compressor, level-2 150-180-degree hot gas recovery of a piston type air compressor, and level-3 100-140-degree hot gas recovery of a centrifugal air compressor.
Description
Technical field
The invention belongs to technical field of energy utilization, the residual heat of air compressor being specifically related to a kind of intelligent band descaler reclaims unit.
Background technique
Air compressor is when producing pressurized air, and the heat of generation is equivalent to 110% of air horsepower.Tradition residual heat of air compressor reclaims, and application is limited, can only carry out heat recovery to having oil machine, and substantially adopt single oil to reclaim, efficiency is lower, and heat recovery only has about 60%; Heat exchanger adopts plate type heat exchanger or common tubular heat exchanger, very easily fouling substantially, replacing in general about a year, and plate type heat exchanger is rubber cushion sealing, has again the interpenetrative hidden danger of profit.
Summary of the invention
For solving the problems referred to above that prior art exists, the residual heat of air compressor that the present invention will design a kind of intelligent band descaler reclaims unit.Unit has dry combustion method scale removal and manual pickling descaling two kinds removes incrustation scale configuration mode, unit arranges and automatically detects heat-exchange system heat exchange state, automatic command dry combustion method scaler system carries out the incrustation scale cleaning of heat recovery unit, moment ensures that unit stable and high effective operation is reclaimed in heat exchange, improves and ensures the heat exchange efficiency of waste heat recovering device.
The present invention is achieved by the following technical solutions, and whole device comprises: air compressor, and oil reclaims heat exchanger, and gas reclaims heat exchanger, pickling liquid feeding case, heat storage can, water pump, valve, pipeline, intelligent controller; Air compressor comprises head, deaerator, air cooling device, oil cooler and steam-water separator, head is connected to deaerator by pipeline, a pipeline of deaerator connects gas and reclaims heat exchanger, gas reclaims heat exchanger and connects air cooling device in air compressor and steam-water separator successively by pipeline, another pipeline of deaerator connects oil and reclaims heat exchanger, and oil reclaims heat exchanger and connects oil cooler in air compressor and head successively by pipeline; Pickling liquid feeding case reclaims hot water inlet four-way valve A by pipeline and gas and is connected, and pickling liquid feeding case connects switch three-way valve B by pickling recycle pump;
Four ports that gas reclaims heat exchanger arrange hot air intake temperature/pressure sensor D, gas recycle-water import temperature/pressure sensor E, heat outlet temperature/pressure sensor F respectively and gas recycle-water connecting tube export temperature/pressure sensor G; Four ports that oil reclaims heat exchanger arrange hot oil inlet temperature/pressure sensor A, oil recovery hot water outlet temperature/pressure sensor B, hot oil outlet temperature/pressure sensor C and oily recycle-water connecting tube import temperature/pressure sensor H respectively;
Heat storage can reclaims hot water inlet four-way valve A by heat storage can periodical feeding pipe, valve, heat storage can circulating water pump and gas, and access gas reclaims heat exchanger and reclaims heat exchanger with oil successively, and oil recovery heat exchanger reclaims hot water outlet four-way valve C by oil and accesses heat storage can; Heat storage can, by heat storage can bathing water pipe, valve and shower raw water service pump, connects shower nozzle, and shower nozzle connects heat storage can by heat storage can bathing return pipe; Running water pipe connects heat storage can periodical feeding pipe by valve.
Whole device realizes following Three models by the open and close of the mechanism such as valve and water pump and runs:
During 1. heat recovery pattern:
F1, F2 of fuel and vapor separator hot oil outlet three-way valve F open, F3 closes, E1, E2 of fuel and vapor separator heat outlet three-way valve E open, E3 closes, and D1, D3 that gas reclaims inlet three-way valve D open, and D2 closes, A1, A2 that gas reclaims hot water inlet four-way valve A open, A3, A4 close, and C3, C4 that oil reclaims hot water outlet four-way valve C open, and C1, C2 close; Head high-temperature oil gas mixture is out separated by deaerator, isolated high temperature compressed air enters gas and reclaims the backwater transferring heat to heat storage can in heat exchanger, then enter air cooling device to lower the temperature further, separated by moisture by steam-water separator, pressurized air is seen off by pipeline again; Isolated high temperature oil enters the backwater that oil reclaims heating heat storage can further in heat exchanger, then enters oil cooler and lowers the temperature further, then get back in head by pipeline; The backwater of heat storage can, under the driving of heat storage can circulating water pump, enters gas recovery heat exchanger successively and reclaims heat exchanger with oil, reclaim the heat of high temperature compressed air and high temperature oil, then return heat storage can.When in heat storage can system during lack of water, open running water pipe valve and carry out moisturizing to system, intelligent controller reclaims heat exchanger and gas by oil and reclaims sensor on heat exchanger, the Effec-tive Function of intelligent control single unit system;
2. during dry combustion method scale removal operating mode:
Intelligent controller reclaims the sensor on heat exchanger by oil recovery heat exchanger and gas, automatic detection comparison heat transferring medium data parameters, when occurring abnormal, automatically switch to dry combustion method scale removal operating mode, high temperature compressed air is from oil, gas reclaims the aqueous medium outlet of heat exchanger, entrance oppositely enters, namely gas reclaims the D3 closedown of inlet three-way valve D, D1, D2 opens, the B2 of switch three-way valve B closes, B1, B3 opens, oil reclaims the C2 of hot water outlet four-way valve C, C4 closes, C1, C3 opens, gas reclaims the A2 of hot water inlet four-way valve A, A4 closes, high temperature compressed air carries out heating dry combustion method to the heat-exchanging water medium tube chamber that oil reclaims heat exchanger, due to incrustation scale and thermal expansion metal difference of coefficients, incrustation scale can chap in the form of sheets, gas reclaims the A1 of hot water inlet four-way valve A, A3 Time Delay Opening, purge block incrustation scale sheet, particulate inclusions, then gas reclaims A3, A4 closedown of hot water inlet four-way valve A, A1, A2 open, the D2 that gas reclaims inlet three-way valve D closes, B1, B3 of switch three-way valve B close, and C1, C4 that oil reclaims hot water outlet four-way valve C close, and C2, C3 open, tap water and hot gas oppositely enter water heat exchanging chamber, again make incrustation scale chap and be rinsed, discharged by C2 mouth, complete automatic dry burn off dirt process,
3. during pickling descaling pattern:
Dry combustion method scale removal fault or not exclusively time, also pickling descaling pattern can be manually booted, in acid solution case, add the weak acid solution of applicable ratio and switch to pickling descaling pattern, gas reclaims the A2 of hot water inlet four-way valve A, A3, the B1 of switch three-way valve B, and oil reclaims the C2 of hot water outlet four-way valve C, C4 closes automatically, gas reclaims the A1 of hot water inlet four-way valve A, A4, the B2 of switch three-way valve B, B3, and oil reclaims the C1 of hot water outlet four-way valve C, C3 opens automatically, pickling recycle pump runs automatically, can be complete by presetting time wash cycles, pickling recycle pump stops automatically, gas reclaims the A3 of hot water inlet four-way valve A, A4, oil reclaims the C1 of hot water outlet four-way valve C, C4 closes automatically, gas reclaims the A1 of hot water inlet four-way valve A, A2, oil reclaims the C2 of hot water outlet four-way valve C, C3 opens automatically, hot water circulating pump runs automatically, the C2 mouth being reclaimed hot water outlet four-way valve C by oil discharges incrustation scale, used wiping solution is also rinsed well.
Compared with prior art, the present invention has following beneficial effect:
1, be first that oil gas heat double back is received, heat recovery reaches more than 88%;
2, unit arranges and automatically detects heat-exchange system heat exchange state, automatic command dry combustion method scaler system carries out the incrustation scale cleaning of heat recovery unit, moment ensures that unit stable and high effective operation is reclaimed in heat exchange, thus ensure the stable operation of air compressor in heat recovery link and working life, avoid heat recovering process to affect host work.
3, adopt tubular heat exchanger, reclaim fully the waste heat of high temperature oil and high temperature compressed air, do not affect again host work and compressed-air actuated supply (pressurized air pressure drop is less, only has 0.01Mpa simultaneously; Oil resistance only has 0.05Mpa); The interior pipe of tubular heat exchanger adopts internal spiral line copper pipe, and fluid forms turbulent flow, increases heat exchange area, improves heat transfer effect simultaneously, reduce the chance that incrustation scale is formed.
4, unit has dry combustion method scale removal and manual pickling descaling two kinds and removes incrustation scale configuration mode, improves and ensures the heat exchange efficiency of waste heat recovering device.
5, the invention solves the problems such as high temperature, media pressure drop, heat exchanger incrustation scale, it is widely used, and can be used for screw rod has oily air compressor 75 ~ 95 DEG C of deep fats and hot gas double back to receive; Screw rod oilless air compressor the 1st, 2 grades of 160 ~ 200 DEG C of hot gas reclaim; 2nd grade of 150 ~ 180 DEG C of hot gas of piston type air compressor reclaims; Centrifugal air compressor 3rd level 100 ~ 140 DEG C of hot gas recovery etc.
Accompanying drawing explanation
Fig. 1 is principle schematic of the present invention.
In figure: 1, fuel and vapor separator heat outlet, 2, fuel and vapor separator hot oil outlet, 3, fuel and vapor separator hot oil outlet three-way valve F, 4, fuel and vapor separator heat outlet three-way valve E, 5, shower nozzle, 6, shower raw water service pump, 7, heat storage can bathing water pipe, 8, heat storage can bathing return pipe, 9, heat storage can, 10, running water pipe, 11, heat storage can periodical feeding pipe, 12, heat storage can loops back water pipe, and 13, heat storage can circulating water pump, 14, hot oil inlet temperature/pressure sensor A, 15, hot oil inlet, 16, oil reclaims heat exchanger, and 17, floss hole A, 18, oil reclaims hot water outlet, and 19, oil reclaims hot water outlet four-way valve C, and 20, oil reclaims hot water outlet temperature/pressure sensor B, and 21, hot oil outlet, 22, hot oil outlet temperature/pressure sensor C, 23, gas reclaims inlet three-way valve D, and 24, hot air intake temperature/pressure sensor D, 25, switch three-way valve B, 26, hot air intake, 27, floss hole B, 28, gas reclaims hot water inlet four-way valve A, and 29, pickling recycle pump, 30, gas reclaims import temperature/pressure sensor E, and 31, gas reclaims hot water inlet, and 32, gas reclaims heat exchanger, and 33, pickling liquid feeding case, 34, heat outlet temperature/pressure sensor F, 35, heat outlet, 36, gas recycle-water connecting tube exports, and 37, gas recycle-water connecting tube outlet temperature/pressure sensor G, 38, petroleum vapor recovery water connecting tube, 39, oil recycle-water connecting tube import, 40, oil recycle-water connecting tube import temperature/pressure sensor H, 41, oil cooler import, 42, oil cooler exports, and 43, oil cooler, 44, compressed air outlet, 45, steam-water separator, 46, air cooling device exports, and 47, air cooling device, 48, air cooling device import, 49, deaerator import, 50, head, 51, head import, 52, head exports, and 53, deaerator, 54, intelligent controller.
Embodiment
The specific embodiment of the present invention is described in detail below in conjunction with accompanying drawing and technological scheme:
As shown in Figure 1, whole device comprises: air compressor, and oil reclaims heat exchanger 16, and gas reclaims heat exchanger 32, pickling liquid feeding case 33, heat storage can 9, water pump, valve, pipeline, intelligent controller 54, air compressor comprises head 50, deaerator 53, air cooling device 47, oil cooler 43 and steam-water separator 45, head 50 is connected to deaerator 53 by pipeline, a pipeline of deaerator 53 successively with fuel and vapor separator heat outlet three-way valve E4, gas reclaims inlet three-way valve D23, gas reclaims heat exchanger 32 and connects, gas reclaims heat exchanger 32 and connects air cooling device in air compressor 47 and steam-water separator 45 successively by pipeline, another pipeline of deaerator 53 connects fuel and vapor separator hot oil outlet fuel and vapor separator hot oil outlet three-way valve F3 successively and oil reclaims heat exchanger 16, oil reclaims heat exchanger 16 and connects oil cooler in air compressor 43 and head 50 successively by pipeline, pickling liquid feeding case 33 reclaims hot water inlet four-way valve A28 by pipeline and gas and is connected, and pickling liquid feeding case 33 connects switch three-way valve B25 by pickling recycle pump 29, four ports that gas reclaims heat exchanger 32 arrange hot air intake temperature/pressure sensor D25, gas recovery import temperature/pressure sensor E30, heat outlet temperature/pressure sensor F34 respectively and gas recycle-water connecting tube export temperature/pressure sensor G37, four ports that oil reclaims heat exchanger 16 arrange hot oil inlet temperature/pressure sensor A14, oil recovery hot water outlet temperature/pressure sensor B20, hot oil outlet temperature/pressure sensor C22 and oily recycle-water connecting tube import temperature/pressure sensor H40 respectively, heat storage can 9 reclaims hot water inlet four-way valve A28 by heat storage can periodical feeding pipe 11, valve, heat storage can circulating water pump 13 with gas, access gas recovery heat exchanger 32 successively and reclaim heat exchanger 16 with oily, the oily heat exchanger 16 that reclaims passes through oil recovery hot water outlet four-way valve C19 access heat storage can 9, heat storage can 9 is by heat storage can bathing water pipe 7, valve and shower raw water service pump 6, and connect shower nozzle 5, shower nozzle 5 connects heat storage can 9 by heat storage can bathing return pipe 8, running water pipe 10 connects heat storage can periodical feeding pipe 11 by valve.
Whole device realizes following Three models by the open and close of the mechanism such as valve and water pump and runs:
During heat recovery pattern:
Head 50 high-temperature oil gas mixture out enters deaerator 53 by head outlet 52 and is separated, isolated high temperature compressed air reclaims inlet three-way valve D23 by fuel and vapor separator heat outlet 1, fuel and vapor separator heat outlet three-way valve E4 and gas, hot air intake 26 enters gas and reclaims the backwater heating heat storage can in heat exchanger 32, then enter air cooling device 47 by heat outlet 35, pipeline and air cooling device import 48 to lower the temperature further, separated by moisture by steam-water separator 45, pressurized air is discharged by compressed air outlet 44 again;
The isolated high temperature oil of deaerator 53 enters oil by fuel and vapor separator hot oil outlet 2, fuel and vapor separator hot oil outlet three-way valve F3 and hot oil inlet 15 and reclaims the backwater heating heat storage can in heat exchanger 16 further, then enter oil cooler 43 by hot oil outlet 21, oil cooler import 41 to lower the temperature further, then get back in head 50 by oil cooler outlet 42 with head import 51;
The backwater of heat storage can is under the driving of heat storage can circulating water pump 13, reclaim hot water inlet four-way valve A28 and gas along heat storage can periodical feeding pipe 11, gas to reclaim hot water inlet 31 and enter gas and reclaim heat exchanger 32 and high temperature compressed air carries out heat exchange, reclaim the circulating water of high temperature compressed air heat, enter oil recovery heat exchanger 16 by gas recycle-water connecting tube outlet 36, oily recycle-water connecting tube import 39 and carry out heat exchange with high temperature oil, then reclaim hot water outlet 18 by oil, oil recovery hot water outlet four-way valve C19 returns heat storage can 9.Under the driving of shower raw water service pump 6, the hot water in heat storage can 9 carries out bathing by heat storage can bathing water pipe 7, valve conveying shower nozzle 5, and untapped hot water gets back to heat storage can 9 by heat storage can bathing return pipe 8; When in heat storage can system during lack of water, the valve opened on running water pipe 10 carries out moisturizing to system, intelligent controller 54 reclaims the sensor on heat exchanger 32 by oil recovery heat exchanger 16 and gas, the Effec-tive Function of intelligent control single unit system, oil gas heat double back receives the heat of about 88%, makes the hot water in heat storage can 9 adjustable within the scope of 50-80 DEG C;
During dry combustion method scale removal operating mode:
Intelligent controller 54 reclaims the sensor on heat exchanger 32 by oil recovery heat exchanger 16 and gas, automatic detection comparison heat transferring medium data parameters, when occurring abnormal, automatically switch to dry combustion method scale removal operating mode, high temperature compressed air reclaims the media outlet of heat exchanger 16 from oil, entrance oppositely enters, namely gas reclaims the D3 closedown of inlet three-way valve D23, D1, D2 opens, the B2 of switch three-way valve B25 closes, B1, B3 opens, oil reclaims the C2 of hot water outlet four-way valve C19, C4 closes, C1, C3 opens, gas reclaims the A2 of hot water inlet four-way valve A28, A4 closes, high temperature compressed air carries out heating dry combustion method to the heat-exchanging water medium tube chamber that oil reclaims heat exchanger 16, due to incrustation scale and thermal expansion metal difference of coefficients, incrustation scale can chap in the form of sheets, gas reclaims the A1 of hot water inlet four-way valve A28, A3 Time Delay Opening, purge block incrustation scale sheet, particulate inclusions, then gas reclaims the A3 of hot water inlet four-way valve A28, A4 closes, A1, A2 opens, the D2 that gas reclaims inlet three-way valve D23 closes, the B1 of switch three-way valve B25, B3 closes, oil reclaims the C1 of hot water outlet four-way valve C19, C4 closes, C2, C3 opens, tap water and hot gas oppositely enter water heat exchanging chamber, incrustation scale is again made to chap and be rinsed, the C2 being reclaimed hot water outlet four-way valve C19 by oil opens, discharged by floss hole A17, complete automatic dry burn off dirt process,
During pickling descaling pattern:
Dry combustion method scale removal mode fault or not exclusively time, also pickling descaling pattern can be manually booted, in acid solution case 33, add the weak acid solution of applicable ratio and switch to pickling descaling pattern, gas reclaims the A2 of hot water inlet four-way valve A28, A3, the B1 of switch three-way valve B25, and oil reclaims the C2 of hot water outlet four-way valve C19, C4 closes automatically, gas reclaims the A1 of hot water inlet four-way valve A28, A4, the B2 of switch three-way valve B25, B3, and oil reclaims the C1 of hot water outlet four-way valve C19, C3 opens automatically, pickling recycle pump 29 runs automatically, can be complete by presetting time wash cycles, pickling recycle pump 29 stops automatically, gas reclaims the A3 of hot water inlet four-way valve A28, A4, oil reclaims the C1 of hot water outlet four-way valve C19, C4 closes automatically, gas reclaims the A1 of hot water inlet four-way valve A28, A2, oil reclaims the C2 of hot water outlet four-way valve C19, C3 opens automatically, hot water circulating pump 13 runs automatically, the C2 being reclaimed hot water outlet four-way valve C19 by oil opens, incrustation scale is discharged by floss hole A17, used wiping solution is also rinsed well.
Claims (1)
1. the residual heat of air compressor of intelligent band descaler reclaims a unit, it is characterized in that: comprise air compressor, oil reclaims heat exchanger (16), gas reclaims heat exchanger (32), pickling liquid feeding case (33), heat storage can (9), water pump, valve, pipeline and intelligent controller (54); Described air compressor comprises head (50), deaerator (53), air cooling device (47), oil cooler (43) and steam-water separator (45);
Described head (50) is connected to deaerator (53) by pipeline, a pipeline of deaerator (53) successively with fuel and vapor separator heat outlet three-way valve E (4), gas reclaims inlet three-way valve D (23), gas reclaims heat exchanger (32) and connects, gas reclaims heat exchanger (32) and connects air cooling device (47) in air compressor and steam-water separator (45) successively by pipeline, another pipeline of deaerator (53) connects fuel and vapor separator hot oil outlet three-way valve F (3) successively and oil reclaims heat exchanger (16), oil reclaims heat exchanger (16) and connects oil cooler (43) in air compressor and head (50) successively by pipeline, pickling liquid feeding case (33) reclaims hot water inlet four-way valve A (28) by pipeline and gas and is connected, and pickling liquid feeding case (33) connects switch three-way valve B (25) by pickling recycle pump (29),
Four ports that gas reclaims heat exchanger (32) arrange hot air intake temperature/pressure sensor D (24), gas recycle-water import temperature/pressure sensor E (30), gentle recycle-water connecting tube outlet temperature/pressure sensor G (37) of heat outlet temperature/pressure sensor F (34) respectively; Four ports that oil reclaims heat exchanger (16) arrange hot oil inlet temperature/pressure sensor A (14), oil recovery hot water outlet temperature/pressure sensor B (20), hot oil outlet temperature/pressure sensor C (22) and oily recycle-water connecting tube import temperature/pressure sensor H (40) respectively;
Heat storage can (9) reclaims hot water inlet four-way valve A (28) by heat storage can periodical feeding pipe (11), valve, heat storage can circulating water pump (13) with gas, access gas recovery heat exchanger (32) successively and reclaim heat exchanger (16) with oily, oil reclaims heat exchanger (16) and passes through oil recovery hot water outlet four-way valve C (19) access heat storage can (9); Heat storage can (9) is by heat storage can bathing water pipe (7), valve and shower raw water service pump (6), connect shower nozzle (5), shower nozzle (5) connects heat storage can (9) by heat storage can bathing return pipe (8); Running water pipe (10) connects heat storage can periodical feeding pipe (11) by valve.
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| CN201510937650.3A CN105386960B (en) | 2015-12-14 | 2015-12-14 | Intelligent air compressor waste heat recovery unit with scale removal device |
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| CN201510937650.3A CN105386960B (en) | 2015-12-14 | 2015-12-14 | Intelligent air compressor waste heat recovery unit with scale removal device |
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| CN105386960A true CN105386960A (en) | 2016-03-09 |
| CN105386960B CN105386960B (en) | 2017-05-24 |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN106629895A (en) * | 2016-11-29 | 2017-05-10 | 江苏悦达家纺有限公司 | Heat recovery device capable of optimizing water quality |
| CN108224822A (en) * | 2018-01-05 | 2018-06-29 | 陈正茂 | Air Force heat production, steam, hot water, air conditioner |
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| DE3318021A1 (en) * | 1983-05-18 | 1984-11-22 | Klaus 7292 Baiersbronn Liepelt | Plant for heat recovery from waste waters (effluents) |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN108224822A (en) * | 2018-01-05 | 2018-06-29 | 陈正茂 | Air Force heat production, steam, hot water, air conditioner |
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| CN105386960B (en) | 2017-05-24 |
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Denomination of invention: An intelligent air compressor waste heat recovery unit with descaling device Effective date of registration: 20230614 Granted publication date: 20170524 Pledgee: China Construction Bank Corporation Dalian Jinpu New Area Branch Pledgor: DALIAN SHENGDING INDUSTRY EQUIPMENT Co.,Ltd. Registration number: Y2023980043988 |