CN107606817B - Method for comprehensively utilizing heat energy of main process water system - Google Patents
Method for comprehensively utilizing heat energy of main process water system Download PDFInfo
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- CN107606817B CN107606817B CN201610542151.9A CN201610542151A CN107606817B CN 107606817 B CN107606817 B CN 107606817B CN 201610542151 A CN201610542151 A CN 201610542151A CN 107606817 B CN107606817 B CN 107606817B
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Abstract
The invention belongs to the technical field of heat pump application of a main process water system for uranium enrichment production, and particularly relates to a method for comprehensively utilizing heat energy of the main process water system. The method comprises the following steps: rechecking and calculating the heat load of the air conditioner matched with the main process and the auxiliary plant, and analyzing the heat satisfaction; a cut-off valve is additionally arranged at a chilled water source to reliably cut off the chilled water of the main process and the chilled water of the air conditioner; a branch pipe is connected from a main pipe of a heat pump hot water supply air conditioner of a main process water system and serves as a hot water output pipeline; connecting a hot water pipe of a heat pump of a main process water system with a freezing water pipe of an air conditioner and additionally arranging a communicating valve; in the air-conditioning room, a chilled water supply pipe and a steam return pipe of the air-conditioning unit are connected, and the chilled water return pipe and a steam supply pipe are connected. On the premise of not increasing equipment and laying pipelines again, the invention only carries out local reconstruction by using the built pipelines, thereby improving the heat utilization rate of the main process water system, lowering the operation and maintenance cost and having obvious energy-saving and consumption-reducing effects.
Description
Technical Field
The invention belongs to the technical field of heat pump application of a main process water system for uranium enrichment production, and particularly relates to a method for comprehensively utilizing heat energy of the main process water system.
Background
The existing refrigeration unit of a main process water system applied to uranium enrichment production adopts a heat pump technology, so that the refrigeration unit can run in a heat pump working condition mode in winter, a refrigerant utilizes process cooling return water waste heat, cooling water meeting process requirements is prepared after heat absorption and evaporation are carried out on an evaporation end of the refrigeration unit, and heat is released at a condensation end of the refrigeration unit to generate high-temperature hot water which can be used for heating.
Taking a production line with the annual production capacity of 1100 tons of separation work as an example, on the premise that the refrigerating capacity of a refrigerating unit which runs under the working condition of a heat pump in winter meets the cold requirement of a main process, the heating capacity of the refrigerating unit not only meets the heat consumption of an air conditioner and an auxiliary plant, but also does not utilize nearly 3/4 heat, and the heat is dissipated into the atmosphere through a cooling tower arranged outdoors.
Uranium enrichment production before this, air conditioner, supplementary factory building and office heating all adopt steam, if utilize main technology operation heat pump hot water, former steam pipeline sets up the pipe diameter and can not satisfy the requirement, lays the pipeline again, and not only the investment is big, and the construction degree of difficulty is big moreover, and the benefit is retrieved the cycle length, and the return on investment is low. By utilizing the characteristic that the air-conditioning freezing water pipe is used in summer and is stopped in winter, hot water generated at the condensation end of the refrigerating unit of the main process water system is conveyed to the original air-conditioning unit adopting steam as a heating heat source through the air-conditioning freezing water pipe, so that not only can the heat energy of the main process water system be fully utilized, but also the pipeline resources left unused on site can be effectively utilized, and the effects of energy conservation and consumption reduction are obvious. However, the application of the method has higher requirements on the quality and the sealing property of the valve.
Disclosure of Invention
The invention aims to provide a method for comprehensively utilizing heat energy of a main process water system, so as to overcome the defects in the prior art.
In order to achieve the purpose, the technical scheme adopted by the invention is as follows:
a method for comprehensively utilizing heat energy of a main process water system comprises the following steps:
firstly, rechecking the heat load of an air conditioner and an auxiliary plant matched with a main process and analyzing the heat satisfaction on the premise that the refrigerating capacity of a heat pump unit of a main process water system meets the operation of the main process; calculating the pressure loss of the pipeline at the farthest end of hot water delivery, and analyzing the delivery capacity of a hot water circulating water pump of a heat pump of a main process water system;
secondly, adding a cut-off valve at the chilled water source to reliably cut off the chilled water of the main process from the chilled water of the air conditioner;
thirdly, connecting a branch pipe from a main trunk pipe of a hot water supply air conditioner of a heat pump of a main process water system to serve as a hot water output pipeline, and laying the branch pipe into a valve well closest to a refrigerated water pipe of an air conditioner of other centrifugal cascade engineering which is put into operation;
fourthly, connecting a heat pump hot water pipe of the main process water system with a freezing water pipe of an air conditioner, and additionally arranging a communicating valve;
fifthly, in the air-conditioning room, connecting a chilled water supply pipe and a steam return pipe of each air-conditioning unit, and connecting the chilled water return pipe and a steam supply pipe, and respectively installing a switching valve;
and sixthly, removing the air-conditioning unit steam supply two-way valve and the water return device, and respectively adding a blind plate.
Under the condition of not increasing equipment and re-laying pipelines, the air-conditioning freezing water pipe is used for conveying hot water in winter and conveying freezing water in summer.
The beneficial effects obtained by the invention are as follows:
on the premise of not increasing equipment and laying pipelines again, the invention only carries out local reconstruction by using the built pipelines, thereby improving the heat utilization rate of the main process water system, lowering the operation and maintenance cost and having obvious energy-saving and consumption-reducing effects.
Drawings
FIG. 1 is a schematic diagram of comprehensive utilization of heat energy of a main process water system.
Detailed Description
The present invention will be described in detail with reference to specific examples.
The method for comprehensively utilizing the heat energy of the main process water system comprises the following steps:
firstly, according to the refrigeration unit configuration of refrigeration capacity for main process of 1100 tons of separation work per year and the heating capacity of the refrigeration unit under the working condition of a heat pump, rechecking calculation is carried out on the heat load of an air conditioner and an auxiliary plant matched with the main process, and the heat satisfaction is analyzed.
And calculating the pressure loss of the pipeline at the farthest end of hot water delivery, and analyzing the delivery capacity of the hot water circulating water pump of the heat pump of the main process water system.
And secondly, adding a cut-off valve at the chilled water source to reliably cut off the chilled water of the main process and the chilled water of the air conditioner. The main process chilled water runs continuously all the year round, and the air conditioner chilled water stops running in winter. In order to ensure the complementary interference between the chilled water and the hot water in the main process in winter, a cut-off valve is additionally arranged at the branch of the chilled water and the chilled water in the main process of the air conditioner.
And thirdly, laying a hot water output pipeline of a heat pump of a main process water system. A branch pipe is connected from a main pipe of a heat pump hot water supply air conditioner of a main process water system and serves as a hot water output pipeline, and the branch pipe is laid in a valve well which is closest to other centrifugal cascade air conditioner freezing water pipes which are put into operation.
And fourthly, connecting a heat pump hot water pipe of the main process water system with a freezing water pipe of the air conditioner, and additionally arranging a communicating valve. And in the valve well of the air-conditioning chilled water pipe, a communicating pipe and a valve are arranged to connect the heat pump hot water pipe of the main process water system with the air-conditioning chilled water pipe.
And fifthly, connecting a chilled water supply pipe and a steam return pipe of the air conditioning unit and connecting the chilled water return pipe and the steam supply pipe in the air conditioning room, and respectively additionally installing switching valves. And connecting a water supply pipe of the surface cooler of each air conditioning unit with a water return pipe of the heater, and connecting a water return pipe of the surface cooler with a steam supply pipe of the heater, and respectively additionally installing switching valves.
And sixthly, removing the air-conditioning unit steam supply two-way valve and the water return device, and respectively adding a blind plate.
Through the steps, the full utilization of the heat energy of the main process water system can be realized, as shown in figure 1.
Claims (2)
1. A method for comprehensively utilizing heat energy of a main process water system is characterized by comprising the following steps: the method comprises the following steps:
firstly, adding a cut-off valve at a chilled water source to reliably cut off the chilled water of the main process and the chilled water of an air conditioner;
secondly, connecting a branch pipe from a main trunk pipe of a hot water supply air conditioner of a heat pump of a main process water system as a hot water output pipeline, and laying the branch pipe into a nearest valve well of a refrigerated water pipe of an air conditioner of other centrifugal cascade engineering which is put into operation;
thirdly, connecting a heat pump hot water pipe of a main process water system with a freezing water pipe of an air conditioner, and additionally arranging a communicating valve;
fourthly, in the air-conditioning room, connecting a chilled water supply pipe and a steam return pipe of each air-conditioning unit, and connecting the chilled water return pipe and a steam supply pipe, and respectively additionally installing a switching valve;
and fifthly, removing the air conditioning unit steam supply two-way valve and the water return device, and respectively adding a blind plate.
2. The method for comprehensively utilizing the heat energy of the main process water system as claimed in claim 1, wherein the method comprises the following steps: under the condition of not increasing equipment and re-laying pipelines, the air-conditioning freezing water pipe is used for conveying hot water in winter and conveying freezing water in summer.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610542151.9A CN107606817B (en) | 2016-07-12 | 2016-07-12 | Method for comprehensively utilizing heat energy of main process water system |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201610542151.9A CN107606817B (en) | 2016-07-12 | 2016-07-12 | Method for comprehensively utilizing heat energy of main process water system |
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| CN107606817A CN107606817A (en) | 2018-01-19 |
| CN107606817B true CN107606817B (en) | 2020-08-25 |
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| CN114251748A (en) * | 2020-09-21 | 2022-03-29 | 中核兰州铀浓缩有限公司 | Centrifugal cascade hall air conditioner heating system and method |
Citations (6)
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| CN101832157A (en) * | 2010-03-08 | 2010-09-15 | 翁志远 | Thermomechanical generating technique using low-temperature liquid as working medium |
| CN201973770U (en) * | 2010-11-30 | 2011-09-14 | 罗益龙 | Heating and hot-water combined type solar energy heat exchanger unit |
| CN202281344U (en) * | 2011-11-03 | 2012-06-20 | 武汉市建筑设计院 | Four-pipe air conditioning cold and heat source system with heat recovery function |
| KR20120096982A (en) * | 2011-02-24 | 2012-09-03 | 이영철 | Horizontal processor system |
| CN104456659A (en) * | 2014-11-10 | 2015-03-25 | 昆明博远中菱科技有限公司 | Heat energy comprehensive utilization system |
| CN204373368U (en) * | 2014-11-20 | 2015-06-03 | 吴青平 | A kind of drying room fully utilizing heat energy |
-
2016
- 2016-07-12 CN CN201610542151.9A patent/CN107606817B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101832157A (en) * | 2010-03-08 | 2010-09-15 | 翁志远 | Thermomechanical generating technique using low-temperature liquid as working medium |
| CN201973770U (en) * | 2010-11-30 | 2011-09-14 | 罗益龙 | Heating and hot-water combined type solar energy heat exchanger unit |
| KR20120096982A (en) * | 2011-02-24 | 2012-09-03 | 이영철 | Horizontal processor system |
| CN202281344U (en) * | 2011-11-03 | 2012-06-20 | 武汉市建筑设计院 | Four-pipe air conditioning cold and heat source system with heat recovery function |
| CN104456659A (en) * | 2014-11-10 | 2015-03-25 | 昆明博远中菱科技有限公司 | Heat energy comprehensive utilization system |
| CN204373368U (en) * | 2014-11-20 | 2015-06-03 | 吴青平 | A kind of drying room fully utilizing heat energy |
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