CN109443081B - Heat pump driven steam condensate system and cleaning method thereof - Google Patents
Heat pump driven steam condensate system and cleaning method thereof Download PDFInfo
- Publication number
- CN109443081B CN109443081B CN201811542816.1A CN201811542816A CN109443081B CN 109443081 B CN109443081 B CN 109443081B CN 201811542816 A CN201811542816 A CN 201811542816A CN 109443081 B CN109443081 B CN 109443081B
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- heat pump
- cleaning
- main pipe
- heat
- module
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- 238000004140 cleaning Methods 0.000 title claims abstract description 54
- 238000000034 method Methods 0.000 title abstract description 10
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 27
- 239000010865 sewage Substances 0.000 claims description 6
- 238000009833 condensation Methods 0.000 claims description 4
- 230000005494 condensation Effects 0.000 claims description 4
- FFTOUVYEKNGDCM-OWOJBTEDSA-N (e)-1,3,3-trifluoroprop-1-ene Chemical compound F\C=C\C(F)F FFTOUVYEKNGDCM-OWOJBTEDSA-N 0.000 claims description 3
- 239000003638 chemical reducing agent Substances 0.000 claims description 2
- 238000005265 energy consumption Methods 0.000 abstract 1
- 238000011010 flushing procedure Methods 0.000 description 7
- 238000010438 heat treatment Methods 0.000 description 4
- AMXOYNBUYSYVKV-UHFFFAOYSA-M lithium bromide Chemical compound [Li+].[Br-] AMXOYNBUYSYVKV-UHFFFAOYSA-M 0.000 description 4
- 238000010586 diagram Methods 0.000 description 3
- 239000002918 waste heat Substances 0.000 description 3
- 238000010521 absorption reaction Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000011084 recovery Methods 0.000 description 2
- 238000005406 washing Methods 0.000 description 2
- 230000002745 absorbent Effects 0.000 description 1
- 239000002250 absorbent Substances 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000009835 boiling Methods 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 239000003245 coal Substances 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 239000005431 greenhouse gas Substances 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000003507 refrigerant Substances 0.000 description 1
- 230000001105 regulatory effect Effects 0.000 description 1
- 230000009466 transformation Effects 0.000 description 1
Classifications
-
- 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
-
- 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
- F28G15/00—Details
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Heat-Pump Type And Storage Water Heaters (AREA)
- Cleaning By Liquid Or Steam (AREA)
Abstract
The invention discloses a heat pump driven steam condensate system and a cleaning method thereof, which relate to the technical field of machine set foundation debugging and are characterized by comprising a heat pump module and a cleaning module, wherein the heat pump module comprises at least two heat pumps, the cleaning module comprises a cleaning main pipe and an operation main pipe, the cleaning main pipe is connected with the cleaning main pipe through a first valve group, and each heat pump water inlet is connected with the operation main pipe through a second valve group. Compared with the prior art, the invention has the advantages that: the invention adds a set of special cleaning system for condensed water on the basis of the original condensed water pipeline of the heat pump, and is specially used for debugging, so that the heat pump does not influence the normal operation of other heat pumps when in cleaning operation, and the cleaned heat pump and the other heat pumps which normally operate are mutually independent, thereby greatly improving the cleaning efficiency of the whole heat pump system and reducing the energy consumption.
Description
Technical Field
The invention relates to the technical field of unit infrastructure debugging, in particular to a heat pump driven steam condensate system.
Background
The waste heat utilization technology utilizes an advanced absorption heat pump system to carry out energy-saving transformation on a central heating system of a thermoelectric enterprise, and recovers the condensation heat of steam exhaust of a steam turbine of a power plant so as to convert the condensation heat into a heat source capable of meeting the central heating. The waste heat recovery can be realized without increasing the coal consumption, and the heating capacity is increased.
The lithium bromide absorption heat pump mainly uses steam as a driving heat source, lithium bromide solution as an absorbent and water as a refrigerant, and utilizes the characteristic that water boils at a low boiling point in a low-pressure vacuum state to extract heat in a low-grade waste heat source, and prepares high-grade hot water for manufacturability or heating through recovery and conversion.
As shown in fig. 1, the installation method of the traditional heat pump driven steam condensate system is that each heat pump driven steam condensate water outlet pipeline in the heat pump module is only provided with one electric stop valve, all the outlet pipelines are converged into one path, are connected to an operation main pipe through a reducing pipeline and then are led to a condensate water tank, and after the condensate water is boosted by a condensate water pump, the condensate water is respectively connected to a heat supply network drain tank of a first station of a unit heat supply network. An electric shut-off valve and a regulating valve group are arranged at the joint of the steam condensate of the heat pump station and the drain tank of the heat supply network head station.
When the same work is carried out on each heat pump in the heat pump module, any problem does not occur, however, if one heat pump in the heat pump module needs to carry out cleaning work, sewage needs to be discharged to a designated place through an operation main pipe, and at the moment, other heat pumps which are already cleaned need to be stopped to work, and the work can be continued after the working heat pump is completely cleaned.
Therefore, a person skilled in the art is dedicated to developing a heat pump driven steam condensate system, and adds a set of special cleaning system for condensate on the basis of the condensate pipeline of the original heat pump system, so that the working heat pump is specially used for debugging or cleaning, and the normal working of other heat pumps is not affected when the working heat pump is used for cleaning, so that one heat pump can be isolated independently, and the cleaning efficiency of the whole heat pump module and the working efficiency of the whole operation system are greatly improved.
Disclosure of Invention
In view of the above-mentioned drawbacks of the prior art, the present invention is to provide a heat pump driven steam condensate system, which is provided with a set of special cleaning system for condensate on the basis of the condensate pipeline of the original heat pump system, so that the working heat pump is used specially during debugging or cleaning, and the normal working of other heat pumps is not affected during the cleaning work, so that one heat pump can be isolated independently, and the cleaning efficiency of the whole heat pump module and the working efficiency of the whole operation system are greatly improved.
In order to achieve the above purpose, the invention provides a heat pump driven steam condensate system, which comprises a heat pump module and a cleaning module, wherein the heat pump module comprises at least two heat pumps, the cleaning module comprises a cleaning main pipe and an operation main pipe, and each heat pump water outlet is connected with the cleaning main pipe through a first valve group and is connected with the operation main pipe through a second valve group.
Further, the first valve group is a manual stop valve, and the second valve group is an electric stop valve.
Further, the water outlet of each heat pump is connected with the flushing main pipe through the manual stop valve.
Further, the water outlet of each heat pump is connected with the operation main pipe through the electric stop valve.
Further, when any one of the heat pump modules is in a cleaning working state, the manual stop valves of other heat pumps are in a closed state, and the electric stop valves are in an open state.
Further, the manual stop valve of any one heat pump in the heat pump modules is opened, and the electric stop valve is closed at the same time, so that sewage is discharged through the cleaning main pipe.
Further, a condensate tank is also included.
Further, when any one of the heat pump modules works, the condensed water in normal operation is introduced to the condensed water tank after being merged into the operation main pipe.
Further, the working medium of each heat pump in the heat pump module is one or a combination of 1, 3-tetrafluoropropene and 3, 3-trifluoropropene.
Further, the invention provides a cleaning method of a heat pump driven steam condensate system, which comprises the following steps:
step 1, filling a pipeline of a heat pump driven steam condensate system with a weak alkaline clarifying solution, and repeatedly cleaning the system through a condensate pump until the weak alkaline clarifying solution is clarified again;
and 2, washing the heat pump driven steam condensate system by the condensate pump until the water quality is clear.
Compared with the prior art, the invention has the advantages that: according to the invention, a set of special cleaning equipment for condensed water is additionally arranged on the basis of the original condensed water pipeline of the heat pump, and is specially used during debugging, so that the working heat pump does not influence the normal working of other heat pumps during cleaning, and therefore, the working of each heat pump is mutually independent, the cleaning efficiency of the whole heat pump module is greatly improved, and the working efficiency of the whole operation system is further improved.
The conception, specific structure, and technical effects of the present invention will be further described with reference to the accompanying drawings to fully understand the objects, features, and effects of the present invention.
Drawings
FIG. 1 is a schematic diagram of a prior art heat pump driven vapor condensate system;
fig. 2 is a schematic diagram of a heat pump driven vapor condensate system according to a preferred embodiment of the present invention.
Detailed Description
In order to make the technical problems, technical schemes and beneficial effects to be solved more clear, the invention is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are for purposes of illustration only and are not intended to limit the scope of the invention.
In the following description, for purposes of explanation and not limitation, specific details are set forth, such as particular internal procedures, techniques, etc. in order to provide a thorough understanding of embodiments of the present invention. It will be apparent, however, to one skilled in the art that the present invention may be practiced in other embodiments that depart from these specific details. In other instances, detailed descriptions of well-known systems, devices, circuits, and methods are omitted so as not to obscure the description of the present invention with unnecessary detail.
Furthermore, the terms "first," "second," and the like, are used for descriptive purposes only and are not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include one or more such feature. In the description of the present invention, the meaning of "a plurality" is two or more, unless explicitly defined otherwise.
In order to illustrate the technical scheme of the invention, the following description is made by specific examples.
As shown in a schematic diagram of a heat pump driven steam condensate system according to a preferred embodiment of the present invention in fig. 2, the system includes a heat pump module and a cleaning module, wherein the heat pump module includes at least 2 heat pumps, the cleaning module includes a cleaning main pipe and an operation main pipe, a water outlet of each heat pump is connected with the cleaning main pipe through a first valve group, and meanwhile, the cleaning main pipe is connected with the operation main pipe through a second valve group, specifically, the first valve group is a manual stop valve, the second valve group is an electric stop valve, and for the sake of clarity of description of the scheme of the present invention, we take four heat pumps as an example and number the heat pumps as follows: a first heat pump 1, a second heat pump 2, a third heat pump 3 and a fourth heat pump 4, a cleaning main 5 and an operating main 6, a first valve group a and a second valve group b. The first valve group a includes a first manual shut-off valve 1a, a second manual shut-off valve 2a, a third manual shut-off valve 3a and a fourth manual shut-off valve 4a corresponding to each heat pump; the second valve group b includes a first electric shut-off valve 1b, a second electric shut-off valve 2b, a third electric shut-off valve 3b and a fourth electric shut-off valve 4b. The first heat pump 1 is connected with the flushing main pipe 5 through a first manual stop valve 1a, the second heat pump 2 is connected with the flushing main pipe 5 through a second manual stop valve 2a, the third heat pump 3 is connected with the flushing main pipe 5 through a third manual stop valve 3a, and the fourth heat pump 4 is connected with the flushing main pipe 5 through a fourth manual stop valve 4a; the first heat pump 1 is connected with the running main pipe 6 through a first electric stop valve 1b, the second heat pump 2 is connected with the running main pipe 6 through a second electric stop valve 2b, the third heat pump 3 is connected with the running main pipe 6 through a third electric stop valve 3b, and the fourth heat pump 4 is connected with the running main pipe 6 through a fourth electric stop valve 4b, wherein the cleaning main pipe 5 and the running main pipe 6 are reducer pipes.
The working principle of the heat pump driven steam condensate system of the invention is as follows: when any one of the first heat pump 1, the second heat pump 2, the third heat pump 3 and the fourth heat pump 4 is used for cleaning, the manual stop valve at the condensed water outlet of the heat pump is in an open state, the electric stop valve is in a closed state, sewage generated by cleaning is discharged to an outdoor preset treatment place through the flushing main pipe 5, the place can be a water collecting well or a sewage treatment pool, and the like, the manual stop valves of other heat pumps are in a closed state, and the electric stop valve is in an open state. In addition, the heat pump driven steam condensate system also comprises a condensate tank, and when any one heat pump works, the condensate water in normal operation is merged into the operation main pipe and then led to the condensate tank.
Further, in order to ensure the heat circulation efficiency of the heat pump driven steam condensate system, the working medium of each heat pump in the heat pump module is determined to be one or a combination of 1, 3-tetrafluoropropene and 3, 3-trifluoropropene, so that the system can ensure the working efficiency and control the emission of greenhouse gases at the same time, thereby achieving the purpose of environmental protection.
The invention also provides a cleaning method of the heat pump driven steam condensate system, which comprises the following specific steps: step 1, filling a weakly alkaline clarifying solution in a pipeline of a heat pump driven steam condensate system, and repeatedly cleaning the system through a condensate pump until the weakly alkaline cleaning solution is clarified again; and 2, washing the heat pump driven steam condensing system by a condensate pump until the water quality is clear. Before cleaning, the manual stop valve of the heat pump to be cleaned is required to be opened, and the electric stop valve is closed so that sewage is discharged through the cleaning main pipe, in the whole cleaning process, the working heat pump is independent of other working heat pumps, the normal operation of other heat pumps in the system is not influenced, the debugging cleaning work when the system is in a problem is facilitated, the cleaned heat pump can be immediately integrated into the heat pump module to participate in the normal operation, the defect that the operation of the heat pump system can be integrated only after all heat pumps are cleaned is overcome, and the circulating heat efficiency of the unit is greatly improved.
Specifically, in practice, the heat pump driven steam condensate system can increase the quantity of heat pumps according to specific application scenes so as to expand the capacity of the unit, meet the requirement of flushing parameters, and reduce the whole test operation period of the unit.
The foregoing describes in detail preferred embodiments of the present invention. It should be understood that numerous modifications and variations can be made in accordance with the concepts of the invention without requiring creative effort by one of ordinary skill in the art. Therefore, all technical solutions which can be obtained by logic analysis, reasoning or limited experiments based on the prior art by the person skilled in the art according to the inventive concept shall be within the scope of protection defined by the claims.
Claims (2)
1. The heat pump driven steam condensate system is characterized by comprising a heat pump module and a cleaning module, wherein the heat pump module comprises at least two heat pumps, the cleaning module comprises a cleaning main pipe and an operation main pipe, and each heat pump water outlet is connected with the cleaning main pipe through a first valve group and is connected with the operation main pipe through a second valve group; the cleaning main pipe and the running main pipe are reducer pipes; the working medium of each heat pump in the heat pump module is determined to be one or a combination of 1, 3-tetrafluoropropene and 3, 3-trifluoropropene; the first valve group is a manual stop valve, and the second valve group is an electric stop valve;
when any one heat pump in the heat pump modules is in a cleaning working state, the manual stop valves of other heat pumps are in a closed state, and the electric stop valves are in an open state;
and opening a manual stop valve of any heat pump in the heat pump module, and closing an electric stop valve of the heat pump module to discharge sewage through the cleaning main pipe.
2. The heat pump driven steam condensate system of claim 1, further comprising a condensate tank; when any heat pump in the heat pump module works, the condensation water in normal operation is merged into the operation main pipe and then led to the condensation water tank.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811542816.1A CN109443081B (en) | 2018-12-17 | 2018-12-17 | Heat pump driven steam condensate system and cleaning method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811542816.1A CN109443081B (en) | 2018-12-17 | 2018-12-17 | Heat pump driven steam condensate system and cleaning method thereof |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN109443081A CN109443081A (en) | 2019-03-08 |
| CN109443081B true CN109443081B (en) | 2023-09-26 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811542816.1A Active CN109443081B (en) | 2018-12-17 | 2018-12-17 | Heat pump driven steam condensate system and cleaning method thereof |
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| Country | Link |
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| CN (1) | CN109443081B (en) |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR200318721Y1 (en) * | 2003-04-14 | 2003-07-02 | 설원실 | Multi-Type Heat Exchanger Tube Automatic Cleaner |
| CN201454206U (en) * | 2009-08-20 | 2010-05-12 | 河南中烟工业有限责任公司 | A non-powered automatic cleaning filter device and a filter system using the device |
| CN102269326A (en) * | 2011-07-19 | 2011-12-07 | 中国中轻国际工程有限公司 | Sake tank area material pipeline valve array assembly and allocation for beer factory |
| CN103808065A (en) * | 2014-02-17 | 2014-05-21 | 双良节能系统股份有限公司 | Second-kind lithium bromide absorption heat pump unit system |
| CN104550099A (en) * | 2014-12-18 | 2015-04-29 | 广州飞机维修工程有限公司 | Automatic cleaning system for civil aircraft kitchen water boiler |
| CN104567079A (en) * | 2014-12-31 | 2015-04-29 | 北京京诚科林环保科技有限公司 | Hot water type lithium bromide absorption water chilling unit |
| CN106016814A (en) * | 2016-05-18 | 2016-10-12 | 中国科学院工程热物理研究所 | Series-parallel connection coupling absorption type heat pump system |
| CN107327838A (en) * | 2017-08-09 | 2017-11-07 | 青岛理工大学 | Low-temperature waste heat recovery heat supply method for cooling water of slag cooler |
-
2018
- 2018-12-17 CN CN201811542816.1A patent/CN109443081B/en active Active
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR200318721Y1 (en) * | 2003-04-14 | 2003-07-02 | 설원실 | Multi-Type Heat Exchanger Tube Automatic Cleaner |
| CN201454206U (en) * | 2009-08-20 | 2010-05-12 | 河南中烟工业有限责任公司 | A non-powered automatic cleaning filter device and a filter system using the device |
| CN102269326A (en) * | 2011-07-19 | 2011-12-07 | 中国中轻国际工程有限公司 | Sake tank area material pipeline valve array assembly and allocation for beer factory |
| CN103808065A (en) * | 2014-02-17 | 2014-05-21 | 双良节能系统股份有限公司 | Second-kind lithium bromide absorption heat pump unit system |
| CN104550099A (en) * | 2014-12-18 | 2015-04-29 | 广州飞机维修工程有限公司 | Automatic cleaning system for civil aircraft kitchen water boiler |
| CN104567079A (en) * | 2014-12-31 | 2015-04-29 | 北京京诚科林环保科技有限公司 | Hot water type lithium bromide absorption water chilling unit |
| CN106016814A (en) * | 2016-05-18 | 2016-10-12 | 中国科学院工程热物理研究所 | Series-parallel connection coupling absorption type heat pump system |
| CN107327838A (en) * | 2017-08-09 | 2017-11-07 | 青岛理工大学 | Low-temperature waste heat recovery heat supply method for cooling water of slag cooler |
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| Publication number | Publication date |
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| CN109443081A (en) | 2019-03-08 |
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