CN102094792A - An air compressor heat recovery comprehensive utilization system - Google Patents
An air compressor heat recovery comprehensive utilization system Download PDFInfo
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Abstract
Description
技术领域technical field
本发明涉及空气压缩机节能技术领域，特别是一种空压机热能回收综合利用系统。 The invention relates to the technical field of air compressor energy saving, in particular to an air compressor heat recovery comprehensive utilization system. the
背景技术Background technique
现有空压机热回收节能大多集中在提高对空压机热回收换热器的改善上，其控制几乎拘泥于温控器或者基于温控器的变相控制电路上，实现的往往就是将回收的热水直接用于员工的沐浴用，空压机热水回收的热能的用途比较单一。而其控制方式是将造好的热水送到蓄水箱，由于单一的设计方式，其设备的适应性不高，对于不同的控制要求需要设计不同可控制电路。还由于空压机没有协同控制的有效方式，系统控制输送方式单一，使得热能利用没有到达有效而充分。 Most of the heat recovery and energy saving of existing air compressors is focused on improving the heat recovery heat exchanger of the air compressor. The hot water is directly used for employees' bathing, and the heat energy recovered from the hot water of the air compressor is relatively single. And its control method is to send the hot water made to the water storage tank. Due to the single design method, the adaptability of its equipment is not high, and different controllable circuits need to be designed for different control requirements. Also, because the air compressors do not have an effective way of coordinated control, the system controls the delivery mode in a single way, so that the utilization of heat energy is not effective and sufficient. the
因此，现有技术已不能满足现代社会生产对空压机热能回收越来越高的要求。 Therefore, the existing technology can no longer meet the increasingly higher requirements of modern society for heat recovery of air compressors. the
发明内容Contents of the invention
为了克服现有技术中存在的不足之处，本发明的目的是提供一种通过对整个热能回收系统的控制，有效提高空压机的热回收总量，可根据热能利用的应用不同而改变控制方式，实现回收方式的多样化的空压机热能回收综合利用系统。 In order to overcome the deficiencies in the prior art, the object of the present invention is to provide a method to effectively increase the total amount of heat recovery of the air compressor through the control of the entire heat energy recovery system, and the control can be changed according to the application of heat energy utilization. Ways to realize the comprehensive utilization system of air compressor heat recovery with diversified recovery methods. the
为实现上述目的，本发明所采用的技术方案是：一种空压机热能回收综合利用系统，包括空压机、空压机热回收器、热回收蓄水设备、热用户端蓄水设备和热回收控制系统，所述的空压机双向连接热回收器并有热回收控制系统控制；所述的空压机热回收器分别双向连接热回收蓄水设备和热用户蓄水设备，并反馈连接热回收控制系统；所述的热回收蓄水设备双向连接与热用户蓄水设备，反馈连接热回收控制系统并由热回收控制系统控制；所述的热用户端蓄水设备反馈连接热回收控制系统并有热回收控制系统控制；所述的热回收控制系统包括空压机风机、变频控制器、转换器，智能化PLC控制器和电控板，所述的智能化PLC控制器第一路顺序连接数模转换器、变频控制器和空压机风机；第二路连接电控板，所述的电控板分别连接输送水器和流量控制器；第三路连接模数转换器，所述的模数转换器分别连接油温传感器、水温传感器和流量传感器。 In order to achieve the above purpose, the technical solution adopted in the present invention is: an air compressor heat recovery comprehensive utilization system, including air compressor, air compressor heat recovery device, heat recovery water storage equipment, heat user end water storage equipment and Heat recovery control system, the air compressor is bidirectionally connected to the heat recovery device and controlled by the heat recovery control system; the air compressor heat recovery device is bidirectionally connected to the heat recovery water storage device and the heat user water storage device respectively, and feeds back Connected to the heat recovery control system; the heat recovery water storage equipment is bidirectionally connected to the heat user water storage equipment, and is feedback connected to the heat recovery control system and controlled by the heat recovery control system; the heat recovery water storage equipment at the user end is connected to the heat recovery The control system is also controlled by a heat recovery control system; the heat recovery control system includes an air compressor fan, a frequency conversion controller, a converter, an intelligent PLC controller and an electric control board, and the intelligent PLC controller is the first The road is sequentially connected to the digital-to-analog converter, the frequency conversion controller and the air compressor fan; the second road is connected to the electric control board, and the electric control board is respectively connected to the water delivery device and the flow controller; the third road is connected to the analog-to-digital converter, The analog-to-digital converter is respectively connected with an oil temperature sensor, a water temperature sensor and a flow sensor. the
本发明的工作原理是：对上述空压机热能回收系统进行相关参数的设定，系统在读取设置数据后，进入运行系统运行状态，系统读取各实测温度水位水温参数；当系统设定为直热方式时，系统工作于直热模式，该加热模式按照油温优先和水温优先的不同，实现不同优先控制的恒温输出，以满足热能利用时的不同要求，工作在恒温控制状态时的输水动力控制，因输水控制的执行控制器的不同而改变，以适应不同工况的应用场所；当系统设定为循环加热方式时，系统工作于循环加热模式，该模式的特征是通过热回收系统的不断循环，实现设定温度的供水，以确保热用户端的对水温的要求，当水温温度达到设定要求，系统通过智能化PLC控制器控制输送水器或流量控制器；智能化PLC控制器通过设置单管直送和双管循环的不同工作模式用以实现热回收蓄水设备与热用户端蓄水设备之间的输水控制；该单管直送和双管循环的工作方式，不仅适应直送模式和需要循环恒温加热的管道结构，满足热用户端对温度更高的要求，以及对热能的更有效地利用；系统设置热用户端蓄水设备和热回收蓄水设备的补水控制方式，以满足不同的补水方式的要求，让系统补水更具灵活性；系统对于风冷空压机和水冷空压机的不同冷却方式的实施不同热能利用的控制系统，既可以提高热能利用，也可以减少设备的能耗；风冷空压机风机进入变频控制的模式，判断是否进入变频控制的设定条件是，空压机的油温高于设定的启动温度，系统进入风机变频控制状态，系统设定了最低启动频率，风机启动频率控制，当温度到达满负荷温度时，风机进入工频工作状态，反之亦然；水冷空压机风机进入水冷旁路状态的模式，判断是否进入旁路冷却切换的控制的设定条件是，空压机的油温低于设定的启动温度，系统进入旁路控制状态，系统设定了最高关闭温度，当温度到设定的高温状态时，旁路切换完全关闭，旁路的流量由系统设定的温度区间的温度值控制，温度越低旁路流量越大，温度越接近设定高温越小，达到高温设定值时完全关闭，空压机工作在原来的冷却状态，反之亦然。 The working principle of the present invention is: set the relevant parameters of the above-mentioned air compressor heat recovery system, the system enters the running state of the operating system after reading the setting data, and the system reads the parameters of the measured temperature, water level and water temperature; when the system sets When it is in the direct heating mode, the system works in the direct heating mode. According to the oil temperature priority and water temperature priority, the heating mode realizes the constant temperature output of different priority control to meet the different requirements of heat energy utilization. When working in the constant temperature control state The power control of water delivery is changed due to the different executive controllers of water delivery control, so as to adapt to different working conditions; when the system is set to the circulation heating mode, the system works in the circulation heating mode, which is characterized by The continuous circulation of the heat recovery system realizes the water supply at the set temperature to ensure the water temperature requirements of the heat client. When the water temperature reaches the set requirements, the system controls the water delivery device or flow controller through the intelligent PLC controller; intelligent The PLC controller sets different working modes of single-pipe direct delivery and double-pipe circulation to realize water delivery control between heat recovery water storage equipment and heat user-side water storage equipment; the working mode of single-pipe direct delivery and double-pipe circulation, It not only adapts to the direct delivery mode and the pipeline structure that requires circulating constant temperature heating, but also meets the higher temperature requirements of the heat user end and more effective use of heat energy; the system sets the water supply control of the heat user end water storage equipment and heat recovery water storage equipment way to meet the requirements of different water replenishment methods and make the system more flexible; the system implements different heat energy utilization control systems for different cooling methods of air-cooled air compressors and water-cooled air compressors, which can not only improve heat energy utilization, It can also reduce the energy consumption of the equipment; the fan of the air-cooled air compressor enters the mode of frequency conversion control, and the setting condition for judging whether to enter the frequency conversion control is that the oil temperature of the air compressor is higher than the set start temperature, and the system enters the fan frequency conversion control State, the system sets the minimum starting frequency, fan starting frequency control, when the temperature reaches the full load temperature, the fan enters the power frequency working state, and vice versa; the fan of the water-cooled air compressor enters the mode of the water-cooling bypass state, and judges whether to enter The setting condition for the control of bypass cooling switching is that the oil temperature of the air compressor is lower than the set start temperature, the system enters the bypass control state, the system sets the highest shutdown temperature, and when the temperature reaches the set high temperature state , the bypass switching is completely closed, and the flow of the bypass is controlled by the temperature value of the temperature range set by the system. The lower the temperature, the greater the flow of the bypass, and the closer the temperature is to the set high temperature, the smaller it is. The air compressor works in the original cooling state, and vice versa. the
本发明通过采集空压机的油温、热回收蓄水设备中的水温、管道中的水温或水箱中的水温以及水位等信号实现对系统中的各执行器件或设备进行控制，从而根据管道系统用户用热方式的不同选择不同的适应类型，实现用户热利用多样化。本发明具有智能程度高、适应性好、可靠性高、应用范围广等特点。 The present invention controls each actuator or equipment in the system by collecting signals such as the oil temperature of the air compressor, the water temperature in the heat recovery water storage equipment, the water temperature in the pipeline, or the water temperature in the water tank, and the water level, so that according to the pipeline system Users can choose different adaptation types according to different ways of using heat, so as to realize the diversification of users' heat utilization. The invention has the characteristics of high intelligence, good adaptability, high reliability, wide application range and the like. the
附图说明Description of drawings
附图1为本发明一种空压机热能回收综合利用系统的结构原理图； Accompanying drawing 1 is the structural principle diagram of a kind of air compressor heat energy recovery comprehensive utilization system of the present invention;
附图2为本发明一种空压机热能回收综合利用系统的热回收控制系统结构原理图；Accompanying
图中各标号分别是：（1）空压机，（2）空压机热回收器，（3）热回收蓄水设备，（4）热用户端蓄水设备，（5）热回收控制系统，（6）智能化PLC控制器，（7）数模转换器，（8）变频控制器，（9）空压机风机，（10）电控板，（11）输送水器，（12）流量控制器，（13）模数转换器，（14）油温控制器，（15）水温控制器，（16）流量控制器。 The labels in the figure are: (1) air compressor, (2) air compressor heat recovery device, (3) heat recovery water storage equipment, (4) heat user end water storage equipment, (5) heat recovery control system , (6) intelligent PLC controller, (7) digital-to-analog converter, (8) frequency conversion controller, (9) air compressor fan, (10) electric control board, (11) water delivery device, (12) Flow controller, (13) analog-to-digital converter, (14) oil temperature controller, (15) water temperature controller, (16) flow controller. the
具体实施方式Detailed ways
下面结合附图对本发明作进一步的详细说明： Below in conjunction with accompanying drawing, the present invention will be described in further detail:
参看图1，图2，本发明一种空压机热能回收综合利用系统，包括空压机1、空压机热回收器2、热回收蓄水设备3、热用户端蓄水设备4和热回收控制系统5，所述的空压机1双向连接热回收器2并有热回收控制系统5控制；所述的空压机热回收器2分别双向连接热回收蓄水设备3和热用户蓄水设备4，并反馈连接热回收控制系统5；所述的热回收蓄水设备3双向连接与热用户蓄水设备4，反馈连接热回收控制系统5并由热回收控制系统5控制；所述的热用户端蓄水设备4反馈连接热回收控制系统5并有热回收控制系统5控制；所述的热回收控制系统5包括空压机风机9、变频控制器8、转换器7、13，智能化PLC控制器6和电控板10，所述的智能化PLC控制器6第一路顺序连接数模转换器7、变频控制器8和空压机风机9；第二路连接电控板10，所述的电控板10分别连接输送水器11和流量控制器12；第三路连接模数转换器13，所述的模数转换器分别连接油温传感器14、水温传感器15和流量传感器16。Referring to Fig. 1 and Fig. 2, an air compressor heat recovery comprehensive utilization system according to the present invention includes an air compressor 1, an air compressor
以上所述，仅是本发明的较佳实施例而已，并非对本发明作任何形式上的限制，任何熟悉本专业的技术人员可能利用上述揭示的技术内容加以变更或修饰为等同变化的等效实施例，但是凡未脱离本发明技术方案内容，依据本发明的技术实质对以上实施例所作的任何简单修改、等同变化与修饰，均仍属于本发明技术方案的范围内。 The above is only a preferred embodiment of the present invention, and is not intended to limit the present invention in any form. Any skilled person who is familiar with this field may use the technical content disclosed above to change or modify the equivalent implementation of equivalent changes. However, any simple modifications, equivalent changes and modifications made to the above embodiments according to the technical essence of the present invention without departing from the content of the technical solution of the present invention still belong to the scope of the technical solution of the present invention. the
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| CN110425734A (en) * | 2019-07-19 | 2019-11-08 | 湖北兴发化工集团股份有限公司 | A kind of heat energy recycling system |
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Application publication date: 20110615 |