CN206247697U - A Centrifugal Air Compressor Waste Heat Recovery and Utilization System - Google Patents
A Centrifugal Air Compressor Waste Heat Recovery and Utilization System Download PDFInfo
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- 239000002918 waste heat Substances 0.000 title claims abstract description 26
- 238000011084 recovery Methods 0.000 title description 12
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 126
- 238000010438 heat treatment Methods 0.000 claims abstract description 15
- 238000004064 recycling Methods 0.000 claims abstract description 4
- 238000000746 purification Methods 0.000 claims description 7
- 230000008676 import Effects 0.000 claims 5
- 239000003463 adsorbent Substances 0.000 claims 2
- 230000003020 moisturizing effect Effects 0.000 claims 2
- 230000006835 compression Effects 0.000 claims 1
- 238000007906 compression Methods 0.000 claims 1
- 239000007789 gas Substances 0.000 claims 1
- 238000001179 sorption measurement Methods 0.000 abstract description 11
- 238000005265 energy consumption Methods 0.000 abstract description 5
- 238000005057 refrigeration Methods 0.000 abstract description 3
- 230000002035 prolonged effect Effects 0.000 abstract 1
- 238000005202 decontamination Methods 0.000 description 10
- 230000003588 decontaminative effect Effects 0.000 description 10
- 238000001514 detection method Methods 0.000 description 10
- 238000000034 method Methods 0.000 description 6
- 238000001816 cooling Methods 0.000 description 4
- 238000001035 drying Methods 0.000 description 4
- 238000004939 coking Methods 0.000 description 2
- 239000000498 cooling water Substances 0.000 description 2
- 239000002699 waste material Substances 0.000 description 2
- 238000010521 absorption reaction Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000011982 device technology Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000007667 floating Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000005065 mining Methods 0.000 description 1
- 238000005381 potential energy Methods 0.000 description 1
- 239000004753 textile Substances 0.000 description 1
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A30/00—Adapting or protecting infrastructure or their operation
- Y02A30/27—Relating to heating, ventilation or air conditioning [HVAC] technologies
- Y02A30/274—Relating to heating, ventilation or air conditioning [HVAC] technologies using waste energy, e.g. from internal combustion engine
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
- Y02B30/00—Energy efficient heating, ventilation or air conditioning [HVAC]
- Y02B30/62—Absorption based systems
- Y02B30/625—Absorption based systems combined with heat or power generation [CHP], e.g. trigeneration
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P80/00—Climate change mitigation technologies for sector-wide applications
- Y02P80/10—Efficient use of energy, e.g. using compressed air or pressurized fluid as energy carrier
- Y02P80/15—On-site combined power, heat or cool generation or distribution, e.g. combined heat and power [CHP] supply
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- Structures Of Non-Positive Displacement Pumps (AREA)
Abstract
Description
技术领域technical field
本实用新型涉及焦化、冶金企业的离心式空压机余热回收领域，具体涉及一种离心式空压机余热回收利用系统。The utility model relates to the field of waste heat recovery of centrifugal air compressors in coking and metallurgical enterprises, in particular to a waste heat recovery and utilization system of centrifugal air compressors.
背景技术Background technique
离心式空压机广泛用于矿山开采、机械制造、建筑、纺织等领域，而在离心式空压机的工作过程中，真正用于增加空气势能所消耗的电能，在总耗电量中只占很小的一部分约15％，大约85％的电能转化为热量，这部分热量如果不能被及时排放，将会引起电机和排气高温等问题，严重时会直接影响离心式空压机的运行。目前这部分热量经循环冷却水泵送至冷却塔，放出热量冷却后，再送至离心空压机处吸热，循环使用，这种方式不仅消耗了电能，而且还浪费了热能。现有的焦化、冶金企业离心式空压机余热利用技术主要是利用余热干燥净化装置，但余热干燥净化装置仅在干燥塔再生时，使用部分高温压缩空气(仅占总干燥压缩空气量的3％)，其它的大部分高温压缩空气仍是通过后冷却器被冷却，此种方式仍不能保证余热利用的常年不间断运行，造成热能的大量浪费。Centrifugal air compressors are widely used in mining, machinery manufacturing, construction, textiles and other fields. In the working process of centrifugal air compressors, the power consumed to increase the potential energy of the air is only It accounts for a very small part of about 15%, and about 85% of the electric energy is converted into heat. If this part of heat cannot be discharged in time, it will cause problems such as high temperature of the motor and exhaust, and will directly affect the operation of the centrifugal air compressor in severe cases. . At present, this part of the heat is pumped to the cooling tower through the circulating cooling water. After the heat is released and cooled, it is sent to the centrifugal air compressor for heat absorption and recycling. This method not only consumes electric energy, but also wastes heat energy. The existing waste heat utilization technology of centrifugal air compressors in coking and metallurgical enterprises mainly uses waste heat drying and purification devices, but the waste heat drying and purification devices only use part of high-temperature compressed air (accounting for only 3% of the total dry compressed air volume) when the drying tower is regenerated. %), most of the other high-temperature compressed air is still cooled by the aftercooler, which still cannot guarantee the uninterrupted operation of waste heat utilization throughout the year, resulting in a large waste of heat energy.
实用新型内容Utility model content
本实用新型针对现有余热干燥净化装置技术中存在的上述缺陷，目的是提供一种离心式空压机余热回收利用系统，其能充分利用离心式空压机余热，在采暖地区，夏季为吸附式制冷机提供热源，降低制冷能耗，冬季为采暖用户端提供热量，节能降耗，保证余热利用的常年不间断运行，提高能源利用率；在无采暖地区，全年为吸附式制冷机提供热源，降低制冷能耗。The utility model aims at the above-mentioned defects in the existing waste heat drying and purification device technology, and aims to provide a centrifugal air compressor waste heat recovery and utilization system, which can make full use of the centrifugal air compressor waste heat. The heat source is provided by the type refrigerator, which reduces the cooling energy consumption. In winter, it provides heat for the heating user end, saves energy and reduces consumption, ensures the uninterrupted operation of waste heat utilization all the year round, and improves the energy utilization rate; Heat source, reduce cooling energy consumption.
为了达到上述目的，本实用新型采用以下技术方案实现：In order to achieve the above object, the utility model adopts the following technical solutions to realize:
一种离心式空压机余热回收利用系统，包括离心式空压机，后冷却器；还包括气-水换热器、除污器、循环水泵、补水泵、补水箱，离心式空压机压缩空气出口通过管道连接气-水换热器压缩空气进口，气-水换热器压缩空气出口通过管道连接后冷却器压缩空气进口，后冷却器压缩空气出口与后续净化装置或用户连接，从而形成回路，在连接离心式空压机压缩空气出口与气-水换热器压缩空气进口的管道和连接气-水换热器压缩空气出口和后冷却器压缩空气进口的管道之间连接有旁通管道，在旁通管道上安装有温控阀；A centrifugal air compressor waste heat recovery and utilization system, including a centrifugal air compressor, an aftercooler; also includes an air-water heat exchanger, a decontamination device, a circulating water pump, a water supply pump, a water supply tank, and a centrifugal air compressor The compressed air outlet is connected to the compressed air inlet of the air-water heat exchanger through a pipeline, the compressed air outlet of the air-water heat exchanger is connected to the compressed air inlet of the aftercooler through a pipeline, and the compressed air outlet of the aftercooler is connected to the subsequent purification device or the user, thereby A circuit is formed, and a bypass is connected between the pipeline connecting the compressed air outlet of the centrifugal air compressor and the compressed air inlet of the air-water heat exchanger and the pipeline connecting the compressed air outlet of the air-water heat exchanger and the compressed air inlet of the aftercooler Through the pipeline, a temperature control valve is installed on the bypass pipeline;
气-水换热器供水出口通过管道连接吸附式制冷机和/或采暖用户端供水进口，在气-水换热器的出水管道上安装有温度检测仪表，吸附式制冷机、采暖用户端回水出口通过管道连接除污器回水进口，除污器回水出口通过管道连接循环水泵进口，在除污器出水管道上设置有压力检测仪表，循环水泵出口通过管道与气-水换热器回水进口连接；The water supply outlet of the air-water heat exchanger is connected to the water supply inlet of the adsorption refrigerator and/or the heating user end through pipelines, and a temperature detection instrument is installed on the water outlet pipe of the air-water heat exchanger, and the adsorption refrigerator, the heating user end return The water outlet is connected to the return water inlet of the decontamination device through a pipeline, and the return water outlet of the decontamination device is connected to the inlet of the circulating water pump through a pipeline. A pressure detection instrument is installed on the outlet pipe of the decontamination device, and the outlet of the circulating water pump passes through the pipeline and the air-water heat exchanger return water inlet connection;
补水箱出水口通过管道连接补水泵进口，补水泵出口通过管道连接循环水泵进口，补水箱与外部补水管路连接。The water outlet of the supplementary water tank is connected to the inlet of the supplementary water pump through a pipeline, the outlet of the supplementary water pump is connected to the inlet of the circulating water pump through a pipeline, and the supplementary water tank is connected to an external supplementary water pipeline.
在所述补水箱上设置浮球开关。A float switch is arranged on the water replenishment tank.
与现有技术相比，本实用新型的有益效果是：Compared with the prior art, the beneficial effects of the utility model are:
本实用新型一种离心式空压机余热回收利用系统，对离心式空压机的余热进行了最大限度地回收和利用，能够实现余热利用的常年不间断运行，夏季为吸附式制冷机提供热源用于制取低温水，节约制冷能耗，冬季为采暖用户端提供热量用于采暖，提高能源利用率，同时可以降低离心式空压机的故障率，延长离心式空压机的使用寿命。The utility model is a waste heat recovery and utilization system of a centrifugal air compressor, which maximizes the recovery and utilization of the waste heat of the centrifugal air compressor, can realize the uninterrupted operation of waste heat utilization all year round, and provides heat sources for adsorption refrigerators in summer It is used to produce low-temperature water, save cooling energy consumption, provide heat for heating users in winter, improve energy utilization, reduce the failure rate of centrifugal air compressors, and prolong the service life of centrifugal air compressors.
附图说明Description of drawings
图1是本实用新型一种离心式空压机余热回收利用系统的工艺流程简图。Fig. 1 is a simplified process flow diagram of a centrifugal air compressor waste heat recovery and utilization system of the present invention.
图中：1-离心式空压机；2-后冷却器；3-气-水换热器；4-循环水泵；5-补水泵；6-补水箱；7-除污器；8-定压膨胀罐；9-吸附式制冷机；10-采暖用户端；11-温控阀；12-安全阀；13-旁通管道；14-压力检测仪表；15-温度检测仪表；16-浮球开关。In the figure: 1-centrifugal air compressor; 2-after cooler; 3-air-water heat exchanger; 4-circulating water pump; Pressure expansion tank; 9-adsorption refrigerator; 10-heating client; 11-temperature control valve; 12-safety valve; 13-bypass pipe; 14-pressure detection instrument; 15-temperature detection instrument; 16-floating ball switch.
具体实施方式detailed description
下面结合附图对本实用新型的具体实施方式作进一步说明：The specific embodiment of the utility model will be further described below in conjunction with accompanying drawing:
如图1所示，一种离心式空压机余热回收利用系统，包括离心式空压机1，后冷却器2；还包括气-水换热器3、除污器7、循环水泵4、补水泵5、补水箱6，离心式空压机1压缩空气出口通过管道连接气-水换热器3压缩空气进口，气-水换热器3压缩空气出口通过管道连接后冷却器2压缩空气进口，后冷却器2压缩空气出口与后续净化装置或用户连接，从而形成回路，在连接离心式空压机1压缩空气出口与气-水换热器3压缩空气进口的管道和连接气-水换热器3压缩空气出口和后冷却器2压缩空气进口的管道之间连接有旁通管道13，在旁通管道13上安装有温控阀11。As shown in Figure 1, a centrifugal air compressor waste heat recovery system includes a centrifugal air compressor 1, an aftercooler 2; also includes an air-water heat exchanger 3, a decontamination device 7, a circulating water pump 4, Water supply pump 5, water supply tank 6, centrifugal air compressor 1 compressed air outlet connected to air-water heat exchanger 3 compressed air inlet, air-water heat exchanger 3 compressed air outlet connected to aftercooler 2 compressed air through pipeline The inlet, aftercooler 2 compressed air outlet is connected with the follow-up purification device or the user to form a loop, and the pipeline connecting the centrifugal air compressor 1 compressed air outlet with the air-water heat exchanger 3 compressed air inlet and the air-water connection A bypass pipeline 13 is connected between the compressed air outlet of the heat exchanger 3 and the compressed air inlet of the aftercooler 2 , and a temperature control valve 11 is installed on the bypass pipeline 13 .
气-水换热器3供水出口通过管道连接吸附式制冷机9和/或采暖用户端10供水进口，在气-水换热器3的出水管道上安装有温度检测仪表15，吸附式制冷机9、采暖用户端10回水出口通过管道连接除污器7回水进口，除污器7回水出口通过管道连接循环水泵4进口，在除污器7出水管道上设置有压力检测仪表14，循环水泵4出口通过管道与气-水换热器3回水进口连接，形成回路；在无采暖地区，直接连接吸附式制冷机组。The water supply outlet of the air-water heat exchanger 3 is connected to the water supply inlet of the adsorption refrigerator 9 and/or the heating user end 10 through pipelines, and a temperature detection instrument 15 is installed on the outlet pipe of the air-water heat exchanger 3, and the adsorption refrigerator 9. The return water outlet of the heating user terminal 10 is connected to the return water inlet of the decontamination device 7 through a pipeline, and the return water outlet of the decontamination device 7 is connected to the inlet of the circulating water pump 4 through a pipeline. A pressure detection instrument 14 is installed on the outlet pipe of the decontamination device 7 The outlet of the circulating water pump 4 is connected with the return water inlet of the air-water heat exchanger 3 through a pipeline to form a loop; in areas without heating, it is directly connected to the adsorption refrigeration unit.
补水箱6出水口通过管道连接补水泵5进口，补水泵5出口通过管道连接循环水泵4进口，补水箱6与外部补水管路连接。The water outlet of the replenishment tank 6 is connected to the inlet of the replenishment pump 5 through a pipeline, the outlet of the replenishment pump 5 is connected to the inlet of the circulating water pump 4 through a pipeline, and the replenishment tank 6 is connected with an external replenishment pipeline.
在所述补水箱6上设置浮球开关16。A float switch 16 is arranged on the water replenishment tank 6 .
一种离心式空压机余热回收利用系统的余热回收工艺，具体如下：A waste heat recovery process of a centrifugal air compressor waste heat recovery and utilization system, specifically as follows:
1)压缩空气的循环流程：压缩空气从离心式空压机1出口排出，由温度检测仪表15检测气-水换热器3的出水温度，再由温控阀11控制旁通管道13流量，一部分或全部压缩空气根据供水温度自动调节进入气-水换热器3内与回水进行热交换，冷却后的压缩空气与旁通管道13内的压缩空气汇合，进入后冷却器2内与循环冷却水进行热交换，冷却后的压缩空气进入后续净化装置或直接供给用户；1) Compressed air circulation process: compressed air is discharged from the outlet of the centrifugal air compressor 1, the temperature of the outlet water of the air-water heat exchanger 3 is detected by the temperature detection instrument 15, and then the flow rate of the bypass pipe 13 is controlled by the temperature control valve 11, Part or all of the compressed air is automatically adjusted according to the water supply temperature and enters the air-water heat exchanger 3 for heat exchange with the return water. The cooled compressed air merges with the compressed air in the bypass pipe 13 and enters the aftercooler 2 for circulation The cooling water performs heat exchange, and the cooled compressed air enters the subsequent purification device or is directly supplied to the user;
温度检测仪表15可以是温度传感器，用于采集气-水换热器3的出水温度信号，并将温度信号传输给控制系统，通过控制系统控制温控阀11的流量，从而使一部分或全部压缩空气根据供水温度自动调节进入气-水换热器3内与回水进行热交换，剩余部分的压缩空气由旁通管道13与气-水换热器3冷却后的压缩空气汇合，进入后冷却器2。The temperature detection instrument 15 can be a temperature sensor, which is used to collect the temperature signal of the outlet water of the air-water heat exchanger 3, and transmit the temperature signal to the control system, through which the flow rate of the temperature control valve 11 is controlled, so that part or all of the water can be compressed The air is automatically adjusted according to the water supply temperature and enters the air-water heat exchanger 3 for heat exchange with the return water. The remaining compressed air is merged with the compressed air cooled by the air-water heat exchanger 3 through the bypass pipe 13 and cooled after entering. Device 2.
2)热水的循环流程：吸附式制冷机9或采暖用户端10的热水回水首先经除污器7进行除污后，进入循环水泵4，经循环水泵4升压后，进入气-水换热器3与压缩空气进行热交换，换热后的热水重新供给吸附式制冷机9或采暖用户端10；2) The circulation process of hot water: the hot water return water from the adsorption refrigerator 9 or the heating client 10 is first decontaminated by the decontamination device 7, then enters the circulating water pump 4, and after being boosted by the circulating water pump 4, enters the gas- The water heat exchanger 3 exchanges heat with the compressed air, and the hot water after the heat exchange is resupplied to the adsorption refrigerator 9 or the heating client 10;
在除污器7通往循环水泵4的回水管道上设置有安全阀12和定压膨胀罐8，安全阀12的出口与补水箱6相连，用于调节热水循环回路中的压力。A safety valve 12 and a constant pressure expansion tank 8 are provided on the return water pipe leading from the decontamination device 7 to the circulating water pump 4, and the outlet of the safety valve 12 is connected with the replenishing water tank 6 for adjusting the pressure in the hot water circulation circuit.
3)热水循环管路的补水工作流程：当补水箱6内的浮球开关16开启时，外部补水自动进入补水箱6，压力检测仪表14检测循环水泵4回水管道的压力，当管道压力过低时时，补水泵5自动开启，补水从补水箱6底部出口排出，经补水泵5升压后，进入循环水泵4的回水管道，以保证循环热水管路的正常运行。3) The water replenishment workflow of the hot water circulation pipeline: when the float switch 16 in the water replenishment tank 6 is turned on, the external replenishment water automatically enters into the water replenishment tank 6, and the pressure detection instrument 14 detects the pressure of the return water pipe of the circulating water pump 4. When the pipeline pressure When it is too low, the supplementary water pump 5 is automatically opened, and the supplementary water is discharged from the outlet at the bottom of the supplementary water tank 6. After the supplementary water pump 5 is boosted, it enters the return pipe of the circulating water pump 4 to ensure the normal operation of the circulating hot water pipeline.
压力检测仪表14可以采用压力传感器，用于采集循环水泵4回水管道的压力信号，并将信号传输给控制系统，通过控制系统控制补水泵5，当管道压力低于设定值时，自动开启补水泵5，从补水箱6中向循环水泵4回水管道中补水。The pressure detection instrument 14 can adopt a pressure sensor to collect the pressure signal of the return water pipeline of the circulating water pump 4, and transmit the signal to the control system, and control the supplementary water pump 5 through the control system. When the pipeline pressure is lower than the set value, it will automatically open The supplementary water pump 5 replenishes water from the supplementary water tank 6 to the return water pipeline of the circulating water pump 4 .
本实用新型能够对离心式空压机1的余热进行了最大限度地回收和利用，实现余热利用的常年不间断运行，节约制冷能耗，提高能源利用率，同时可以降低离心式空压机1的故障率，延长离心式空压机1的使用寿命。The utility model can maximize the recovery and utilization of the waste heat of the centrifugal air compressor 1, realize the uninterrupted operation of waste heat utilization all year round, save refrigeration energy consumption, improve energy utilization rate, and at the same time reduce the cost of the centrifugal air compressor 1 The failure rate is lower, and the service life of the centrifugal air compressor 1 is extended.
以上所述，仅为本实用新型示例性的具体实施方式，但本实用新型的保护范围并不局限于此，对于任何熟悉本技术领域的技术人员，在本实用新型揭露的技术范围内，根据本实用新型做出的各种等同替换技术方案及构思都应涵盖在本实用新型的保护范围之内。The above is only an exemplary embodiment of the utility model, but the protection scope of the utility model is not limited thereto. For any skilled person familiar with the technical field, within the technical scope disclosed in the utility model, according to Various equivalent replacement technical schemes and ideas made by the utility model should be covered within the protection scope of the utility model.
Claims (2)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621226540.2U CN206247697U (en) | 2016-11-11 | 2016-11-11 | A Centrifugal Air Compressor Waste Heat Recovery and Utilization System |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN106440506A (en) * | 2016-11-11 | 2017-02-22 | 中冶焦耐(大连)工程技术有限公司 | A centrifugal air compressor waste heat recovery system and process |
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