CN209801595U - Heat pipe mode phase change heat supply system - Google Patents
Heat pipe mode phase change heat supply system Download PDFInfo
- Publication number
- CN209801595U CN209801595U CN201920511280.0U CN201920511280U CN209801595U CN 209801595 U CN209801595 U CN 209801595U CN 201920511280 U CN201920511280 U CN 201920511280U CN 209801595 U CN209801595 U CN 209801595U
- Authority
- CN
- China
- Prior art keywords
- steam
- heat
- pipe
- condensed water
- tank
- 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.)
- Withdrawn - After Issue
Links
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 125
- 238000010438 heat treatment Methods 0.000 claims abstract description 24
- 239000007788 liquid Substances 0.000 claims abstract description 18
- 238000009833 condensation Methods 0.000 claims abstract description 15
- 230000005494 condensation Effects 0.000 claims abstract description 15
- 230000000903 blocking effect Effects 0.000 claims abstract description 9
- 239000012716 precipitator Substances 0.000 claims description 15
- 238000005086 pumping Methods 0.000 claims description 9
- 238000000746 purification Methods 0.000 claims description 5
- 238000001704 evaporation Methods 0.000 abstract description 5
- 230000008020 evaporation Effects 0.000 abstract description 5
- 239000012071 phase Substances 0.000 description 18
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 5
- 238000010586 diagram Methods 0.000 description 5
- 229910052760 oxygen Inorganic materials 0.000 description 5
- 239000001301 oxygen Substances 0.000 description 5
- CURLTUGMZLYLDI-UHFFFAOYSA-N Carbon dioxide Chemical compound O=C=O CURLTUGMZLYLDI-UHFFFAOYSA-N 0.000 description 4
- 238000000034 method Methods 0.000 description 4
- 239000010865 sewage Substances 0.000 description 4
- 230000007797 corrosion Effects 0.000 description 3
- 238000005260 corrosion Methods 0.000 description 3
- 239000007789 gas Substances 0.000 description 3
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 2
- 229910002092 carbon dioxide Inorganic materials 0.000 description 2
- 239000001569 carbon dioxide Substances 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000009413 insulation Methods 0.000 description 2
- 239000012528 membrane Substances 0.000 description 2
- 239000002245 particle Substances 0.000 description 2
- 238000001556 precipitation Methods 0.000 description 2
- 239000008213 purified water Substances 0.000 description 2
- 238000001223 reverse osmosis Methods 0.000 description 2
- 239000007787 solid Substances 0.000 description 2
- CDBYLPFSWZWCQE-UHFFFAOYSA-L Sodium Carbonate Chemical compound [Na+].[Na+].[O-]C([O-])=O CDBYLPFSWZWCQE-UHFFFAOYSA-L 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 229910052742 iron Inorganic materials 0.000 description 1
- 239000007791 liquid phase Substances 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 230000003020 moisturizing effect Effects 0.000 description 1
- 238000005192 partition Methods 0.000 description 1
- 239000012466 permeate Substances 0.000 description 1
- 230000008092 positive effect Effects 0.000 description 1
- 238000004886 process control Methods 0.000 description 1
- 230000003068 static effect Effects 0.000 description 1
- 230000007704 transition Effects 0.000 description 1
Landscapes
- Heat Treatment Of Water, Waste Water Or Sewage (AREA)
Abstract
A heat pipe mode phase-change heat supply system comprises a boiler, a steam distributing cylinder, a condensed water storage tank, a condensed water collection tank, a steam blocking tank, a heat utilization device and the like which are connected through pipelines, steam generated by the boiler is distributed to the heat utilization device through the steam distributing cylinder and a steam pipe, condensed water generated by the heat utilization device is collected to the steam blocking tank through a steam-liquid two-phase pipe, the steam blocking tank blocks the steam, condensate enters the condensed water collection tank through back pressure, and the output end of the condensed water collection tank is communicated to the boiler through the condensed water storage tank. The utility model discloses application heat pipe mode handles heating system, regard steam heating system as a big heat pipe promptly, wherein boiler (heat source) is the evaporation zone, be the condensation zone with heat equipment (cold source), steam pipe part and condenser pipe part are adiabatic section, the working medium is in the confined system and is used vapour-liquid-vapour form to carry out the heat exchange through the pipeline between heat source and cold source repeatedly, accomplish the heat supply, it is low to have engineering cost, long service life, can improve system's efficiency and reinforce advantages such as heat exchange performance by a wide margin.
Description
Technical Field
The utility model belongs to the technical field of heat energy engineering equipment, concretely relates to heat pipe mode phase transition heating system, its heat supply mode's engineering design can extensively be used for using steam as industrial field and civilian field of heat source.
Background
The heating system using steam as a heat source known in the prior art has the following problems and disadvantages in practical application: (1) the running, the overflowing, the dripping and the leaking of energy sources in the system are common, and the energy efficiency is low; (2) when the system is in a partial or complete shutdown condition in the operation process, steam existing in heat utilization equipment and a pipeline on the steam side gradually condenses to present a negative pressure state, and outside air permeates through a gap existing in a pipeline pump valve and the heat utilization equipment, so that the heat exchange of the steam and the heat utilization equipment is influenced by the non-condensed gas when the system is in a restart operation, and the efficiency is reduced; and (3) the oxygen and carbon dioxide existing in the shutdown stage of the system can cause severe oxygen corrosion to pipelines and equipment, and the service life of the system is influenced.
SUMMERY OF THE UTILITY MODEL
The utility model discloses an overcome and improve the defect and the not enough of existence to current heat pipe system, provide a rational in infrastructure, engineering cost is low, can improve heating system's efficiency by a wide margin and reinforce heat exchange performance's heat pipe mode phase change heating system.
The technical solution adopted to achieve the above-mentioned object of the invention is as follows: the heat pipe mode phase change heat supply system comprises a boiler, a steam distributing cylinder, a condensed water storage tank, a vacuumizing unit, a condensed water collection tank, a water purifying unit, a steam blocking tank and a plurality of heat utilization devices which are connected through pipelines, steam generated by the boiler is distributed and conveyed to heat utilization input ends of the heat utilization devices through a steam pipe after passing through the steam distributing cylinder, condensed water generated by the heat utilization devices is collected to the input end of the steam blocking tank through a steam-liquid two-phase pipe, the output end of the steam blocking tank is communicated to the input end of the condensed water collection tank through a second condensed water pipe, the output end of the condensed water collection tank is communicated to the condensed water input end of the condensed water storage tank through a first condensed water pipe, the output end of the water purifying unit is communicated to the still water input end of the condensed water storage tank through a still water pipe, the output end of the condensed water storage tank is communicated to the water inlet of the boiler through a boiler water inlet pipe, and the exhaust end of the vacuumizing unit is respectively communicated with the boiler, the steam distribution device and, The condensed water collecting tank is connected with the steam pipes of all the heat-using equipment.
in the above technical solution of the present invention, the designer uses the heat pipe mode to process the heating system using steam as the heat source, namely: the steam heating system is used as a large heat pipe, wherein a boiler part (a heat source) is an evaporation section, a heat equipment part (a cold source) is a condensation section, and a steam pipe part flowing from the evaporation section (the boiler) to the condensation section (the heat equipment) and a water condensation pipe part returning from the condensation section (the heat equipment) to the evaporation section (the boiler) are heat insulation sections; working medium (water or heat conducting oil) conducts heat transfer and heat exchange between a heat source and a cold source in a steam-liquid-steam mode repeatedly in the closed system through a pipeline to complete heat supply; during the period, the system is in a vacuum state under the conditions of partial shutdown and complete shutdown. The heat supply system is essentially a heat pipe mode phase change heat supply system with controllable and adjustable large liquid medium forced circulation.
The utility model discloses a further technical scheme still includes: the water delivery pumps are respectively arranged on a first condensate pipe leading from the condensate collecting tank to the condensate storage tank, a static water pipe leading from the water purifying unit to the condensate storage tank and a boiler water inlet pipe leading from the condensate storage tank to the boiler.
The utility model discloses a further technical scheme still includes: the steam-resistant tank is provided with a tank body internally provided with a precipitator, condensed water generated by thermal equipment is conveyed to an inlet of the precipitator through a steam-liquid two-phase pipe, an outlet of the precipitator is led out of the tank body through a blow-off pipe, and an output end of the steam-resistant tank is led out of the tank body through a second condensate pipe and then led to an input end of a condensate water collection tank. In the working process, water in the vapor-liquid two-phase pipe flows into the tank, vapor is blocked in the tank, water flows into the condensate collecting tank under the action of back pressure, the precipitator has a precipitation effect on solid particles in the water, and the sewage in the precipitator can be discharged out of the tank body through the sewage discharge pipe after the precipitator is opened.
The utility model discloses a further technical scheme still includes: the vacuum pumping unit consists of a vacuum pump and a vacuum tank, an exhaust pipe of the vacuum pump is connected with the vacuum tank, and a vacuum meter on the upper part of the vacuum tank is connected with a motor of the vacuum pump through a signal line. The vacuum pumping unit arranged in the system can be used for pumping vacuum before the system can be operated and pumping vacuum after the system is partially stopped or completely stopped.
The utility model discloses a further technical scheme still includes: and a check valve is arranged on a pipeline of condensed water produced by the heat utilization equipment, and the check valve is closed after the heat utilization equipment is shut down to prevent downstream steam from flowing back.
Compared with the prior art, the utility model discloses the positive effect that can produce is:
1. The operation of the heat supply system of the utility model adopts a heat pipe mode, and the system eliminates non-condensing gas, strengthens heat exchange and improves heat efficiency;
2. The heat supply system of the utility model can keep a vacuum state when meeting the conditions of local shutdown and complete shutdown in the operation process, thereby avoiding oxygen corrosion to the system caused by oxygen and carbon dioxide and greatly prolonging the service life of the system;
3. The heat supply system of the utility model has the basic attribute of the heat pipe, thereby greatly improving the heat exchange performance in the system, having high energy efficiency and saving water resources;
4. Compare with current well-known conventional steam heating system, heating system has obviously reduced engineering cost.
Drawings
Fig. 1 is a schematic structural diagram of the heat pipe mode phase-change heating system of the present invention.
Fig. 2 is a schematic view of a vapor-blocking tank in the heat pipe mode phase change heating system.
Fig. 3 is a schematic view of a condensate tank in the heat pipe mode phase change heating system.
Fig. 4 is a schematic diagram of a vacuum pumping unit in the heat pipe mode phase change heat supply system.
fig. 5 is a schematic diagram of the basic principle of the system according to the present invention, discussed in terms of the split heat pipe principle.
The names of the numerical labels in the figures are as follows: 1-heat source, 2-steam pipe, 3-pump, 4-condensed water pipe, 5-cold source, 6-boiler, 7-steam-dividing cylinder, 8-steam pipe, 9-water pump, 10-boiler water inlet pipe, 11-condensed water storage tank, 12-vacuum pipe, 13-vacuum unit, 14-first condensed water pipe, 15-condensed water header, 16-reverse osmosis membrane unit, 17-water purification pipe, 18-deaerator, 19-rubber bag, 20-water purification unit, 21-second condensed water pipe, 22-steam-resistant tank, 23-check valve, 24-heat-using equipment, 25-steam-liquid two-phase pipe, 26- (steam-resistant tank) tank, 27-precipitator, 28- (steam-resistant tank) drain pipe, 30-liquid level controller, 33- (condensed water storage tank) tank, 34-cyclone, 35-central pipe, 36- (condensed water storage tank) drain pipe, 38-vacuum pump, 39-cyclone, 40-exhaust pipe, 41-signal line, 42-vacuum tank, 43-vacuum meter.
In fig. 1, a thick solid line represents a steam pipe, a thin solid line represents a liquid phase pipe, a thick dotted line represents a vapor-liquid two-phase pipe, and a thin dotted line represents a vacuum pipe.
Detailed Description
The present invention will be further described with reference to the accompanying drawings, but the practical application form of the present invention is not limited to the illustrated embodiments.
Referring to fig. 1, the heat pipe mode phase change heat supply system of the present invention comprises a boiler 6, a steam-distributing cylinder 7, a condensed water storage tank 11, a vacuum-pumping unit 13, a condensed water collection tank 15, a water purification unit 20, a steam-blocking tank 22 and a plurality of heat-consuming devices 24, which are connected by pipes, wherein a steam output end of the boiler 6 is distributed and conveyed to heat-consuming input ends of the heat-consuming devices 24 by a steam pipe 8 after passing through the steam-distributing cylinder 7, a check valve 23 is installed on a pipeline of condensed water produced by the heat-consuming devices 24, the condensed water produced by the heat-consuming devices 24 is collected to an input end of the steam-blocking tank 22 by a steam-liquid two-phase pipe 25, an output end of the steam-blocking tank 22 is communicated to an input end of the condensed water collection tank 15 by a second condensed water pipe 21, an output end of the condensed water collection tank 15 is communicated to a condensed water input end of the condensed water storage tank 11 by a first condensed, the output end of the condensed water storage tank 11 is communicated with the water inlet of the boiler 6 through a boiler water inlet pipe 10, and the air exhaust end of the vacuumizing unit 13 is respectively connected with the boiler 6, the condensed water collection tank 15 and the steam pipes of the heat utilization devices 24 through vacuum pipes 12 with control valves. In addition, because the system has the trace to run off in long-term operation, and the water has the loss of micro-scale and needs the replenishment, needs the water purification replenishment of deoxidization promptly, so be in heating system in still be equipped with miniature moisturizing processing system, it comprises sponge iron oxygen-eliminating device 18 and miniature reverse osmosis membrane unit 16 and rubber bag 19. The utility model discloses an engineering design principle is: steam generated by the boiler 6 is distributed to each heat utilization device 24 through the steam distributing cylinder 7 and the steam pipe 8, condensed water generated by the heat utilization devices 24 is collected to the steam-blocking tank 22 through the steam-liquid two-phase pipe 25, the steam-blocking tank blocks the steam, condensed liquid enters the condensed water collection tank 15 through the second condensed water pipe 21 under the action of back pressure, the condensed water collection tank is communicated with the condensed water storage tank 10 through the first condensed water pipe 14, and a water delivery pump is mounted on the pipeline to pump the condensed water into the condensed water storage tank 11; when the liquid level in the condensed water storage tank 11 reaches a set high level, the condensed water is pumped into the boiler 6 by the water delivery pump 9; condensed water with different pressures from various road heating equipment is collected in the condensed water storage tank 11, and the condensed water is balanced in the condensed water storage tank 11; in principle, the water working medium in the system is kept balanced, and in actual operation, each pump valve in the system has trace loss of the working medium, so that purified water subjected to deoxidization and descaling is replenished by a water purifying unit 20 and is pumped into a condensed water storage tank 11 through a purified water pipe 17; the vacuum unit 13 is respectively connected with the boiler 6 and the front end of a steam pipe of the heat utilization equipment 24 through a vacuum pipe 12, the system is vacuumized before running, non-condensation gas is removed, and the vacuum state is maintained when the system is in a shutdown state or partial shutdown state, so that oxygen corrosion is avoided.
Referring to fig. 5, the above engineering structure is discussed according to the principle of a split heat pipe, where the heat source (boiler) 1 is an evaporation section, the heat sink (heat using device) 5 is a condensation section, and the steam pipe portion 2 and the water condensation pipe portion 4 are heat insulation sections. In the engineering design, a heat source 1 is a steam boiler mainly using water (or heat conducting oil) as a working medium, a cold source 5 is heat utilization equipment for various partition type heat exchange, and a water condensation pipe part 4 comprises a water condensation pipeline including a circulating pump, a valve and the like. The working medium exchanges heat between the heat source 1 and the cold source 5 in a steam-liquid-steam form through a pipeline repeatedly in the closed system to complete heat supply, and the system is in a vacuum state under the conditions of local shutdown and complete shutdown. The flow surfaces of the thermal equipment, pump valves and pipes used in the system must be cleaned and passivated to make the media flow surfaces hydrophilic.
The utility model discloses well steam trap 22's principle structure is shown in fig. 2, and it has one and establishes the jar body 26 of precipitator 27, and the comdenstion water that produces with heat equipment 24 passes through vapour-liquid two-phase pipe 25 and defeated to the entry of precipitator 27, and the export of precipitator 27 leads to a jar body 26 through blow off pipe 28, and the output that blocks the steam trap leads to jar body 26 through second condenser pipe 21 and leads to the input of jar external rethread to condensing water collection case 15. During operation, water in the vapor-liquid two-phase pipe 25 flows into the tank, vapor is blocked in the tank, the water flows into the condensate collecting tank 15 under the action of back pressure, the precipitator 27 has a precipitation effect on solid particles in the water, and the sewage precipitated by opening the valve is discharged through the sewage discharge pipe 28.
Fig. 3 is a schematic diagram of the condensed water storage tank 11 in the heating system, a liquid level controller 30 is arranged in the condensed water storage tank 11, and a cyclone precipitator 34 with an internal central tube 35 is also arranged in the condensed water storage tank 11 under the control of the liquid level of the boiler.
Fig. 4 is a schematic diagram of the vacuum pumping unit 13 in the heating system, the vacuum pumping unit 13 is composed of a vacuum pump 38 and a vacuum tank 42, an exhaust tube 39 of the vacuum pump 38 is connected with the vacuum tank 42, a vacuum meter 43 on the upper portion of the vacuum tank 42 is connected with a vacuum pump motor through a signal line 41, and the vacuum meter 43 controls the operation of the vacuum pump 38 according to the set vacuum degree.
Among the heating system, adopt the heat equipment of using of next door heat transfer with the heat equipment, if need steam directly to carry out the heat exchange, can adopt the secondary steam generator of soda heat transfer to produce the steam of the direct heat transfer of steam supply.
heating system can utilize intelligent control mode to carry out overall process control.
Claims (5)
1. A heat pipe mode phase change heating system is characterized in that: the heat supply system is characterized in that the heat supply system which uses steam as a heat source is processed by using a heat pipe mode and consists of a boiler (6), a steam distributing cylinder (7), a condensed water storage tank (11), a vacuumizing unit (13), a condensed water collecting tank (15), a water purifying unit (20), a steam blocking tank (22) and a plurality of heat utilization devices (24) which are connected through pipelines, steam generated by the boiler (6) is distributed and conveyed to the heat utilization input ends of the heat utilization devices (24) through a steam pipe (8) after passing through the steam distributing cylinder (7), condensed water generated by the heat utilization devices (24) is collected to the input end of the steam blocking tank (22) through a steam-liquid two-phase pipe (25), the output end of the steam blocking tank (22) is communicated to the input end of the condensed water collecting tank (15) through a second condensed water pipe (21), the output end of the condensed water collecting tank (15) is communicated to the condensed water input end of the condensed water storage tank (11) through a first condensed water pipe (14), and the output end of the water purifying unit (20) is communicated to the still water input end of the condensed, the output end of the condensed water storage tank (11) is communicated with the water inlet of the boiler (6) through a boiler water inlet pipe (10), and the air exhaust end of the vacuumizing unit (13) is respectively connected with the boiler (6), the condensed water collection tank (15) and the steam pipes of the heat utilization devices (24) through a vacuum pipe (12) with a control valve.
2. A heat pipe mode phase change heating system according to claim 1, wherein: a water delivery pump (9) is arranged on a first water condensation pipe (14) leading from the water condensation collection tank (15) to the water condensation storage tank (11), a still water pipe (17) leading from the water purification unit (20) to the water condensation storage tank (11) and a boiler water inlet pipe (10) leading from the water condensation storage tank (11) to the boiler (6).
3. A heat pipe mode phase change heating system according to claim 1, wherein: hinder vapour jar (22) have one and establish jar body (26) of precipitator (27) in, the comdenstion water that produces with hot equipment (24) is passed through vapour-liquid two-phase pipe (25) and is exported the entry to precipitator (27), the export of precipitator (27) leads to out jar body (26) through blow off pipe (28), the output that hinders the vapour jar leads to out jar body (26) through second condenser pipe (21) and leads to the input of congealing water header (15) outward.
4. A heat pipe mode phase change heating system according to claim 1, wherein: the vacuum pumping unit (13) consists of a vacuum pump (38) and a vacuum tank (42), an exhaust pipe (39) of the vacuum pump (38) is connected with the vacuum tank (42), and a vacuum meter (43) at the upper part of the vacuum tank (42) is connected with a vacuum pump motor through a signal line (41).
5. A heat pipe mode phase change heating system according to claim 1, wherein: a check valve (23) is arranged on a pipeline of condensed water produced by the heat utilization equipment (24).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920511280.0U CN209801595U (en) | 2019-04-16 | 2019-04-16 | Heat pipe mode phase change heat supply system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920511280.0U CN209801595U (en) | 2019-04-16 | 2019-04-16 | Heat pipe mode phase change heat supply system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209801595U true CN209801595U (en) | 2019-12-17 |
Family
ID=68829450
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920511280.0U Withdrawn - After Issue CN209801595U (en) | 2019-04-16 | 2019-04-16 | Heat pipe mode phase change heat supply system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN209801595U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109945280A (en) * | 2019-04-16 | 2019-06-28 | 西安交通大学 | Heat pipe mode phase-change heat distribution system |
-
2019
- 2019-04-16 CN CN201920511280.0U patent/CN209801595U/en not_active Withdrawn - After Issue
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109945280A (en) * | 2019-04-16 | 2019-06-28 | 西安交通大学 | Heat pipe mode phase-change heat distribution system |
| CN109945280B (en) * | 2019-04-16 | 2024-01-09 | 西安交通大学 | Heat pipe mode phase change heating system |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN111306787B (en) | Semi-open type high-temperature heat pump system and working method thereof | |
| CN102011616A (en) | High-flow, low-parameter and high-backpressure expansion power energy-saving system | |
| CN203848705U (en) | Exhausted steam recycling system | |
| CN201916008U (en) | Expansion power energy-saving system with high flow, low parameter and high back pressure | |
| CN209801595U (en) | Heat pipe mode phase change heat supply system | |
| CN111503949A (en) | Secondary refrigerant concentration control and energy efficiency maintaining system for heat pump secondary refrigerant circulating system | |
| CN217354498U (en) | Steam turbine exhaust steam condensing system based on plate heat exchanger | |
| CN215939038U (en) | Wheat starch water MVR evaporation concentration device | |
| CN204002956U (en) | A kind of condensed steam type small turbine exhaust steam waste heat utilization system that drives induced draught fan | |
| CN210384862U (en) | Urea evaporative condenser evacuating device | |
| CN104100314B (en) | A kind of condensed steam type small steam turbine exhaust steam bootstrap system driving induced draught fan | |
| CN211290005U (en) | Waste heat recovery system of thermal power plant | |
| CN210638322U (en) | Waste heat refrigerating system of coal-fired power plant | |
| CN109945280B (en) | Heat pipe mode phase change heating system | |
| CN209326399U (en) | Condense island system | |
| CN209744495U (en) | Double-backpressure and heat pump combined heating system of air cooling unit with power of more than 300MW | |
| CN208457934U (en) | Slag waste water residual heat recycles energy saver | |
| CN209926904U (en) | Oxidation steam heat transfer system | |
| CN112815298A (en) | Condensate water recovery system | |
| CN214537461U (en) | Energy-saving vacuum pumping system for waste heat power generation | |
| CN216668355U (en) | Air cooling island condensate treatment system | |
| CN220687584U (en) | Device for improving working efficiency of vacuum pump | |
| CN214581409U (en) | Water source heat pump hot water system that waste water waste heat three-layer cascade was utilized | |
| CN220564348U (en) | Hot waste water economizer system | |
| CN105091403B (en) | Generating set comprehensive water-saving energy conserving system |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned | ||
| AV01 | Patent right actively abandoned | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20191217 Effective date of abandoning: 20240109 |
|
| AV01 | Patent right actively abandoned |
Granted publication date: 20191217 Effective date of abandoning: 20240109 |