CN106766795A - Tunnel type multistage heat pump series drying and dehumidifying system - Google Patents
Tunnel type multistage heat pump series drying and dehumidifying system Download PDFInfo
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- 238000001035 drying Methods 0.000 title claims abstract description 71
- 238000007791 dehumidification Methods 0.000 claims abstract description 58
- 238000010438 heat treatment Methods 0.000 claims abstract description 27
- 238000002156 mixing Methods 0.000 claims abstract description 24
- 239000000463 material Substances 0.000 claims description 27
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 9
- 238000000034 method Methods 0.000 claims description 7
- 238000009413 insulation Methods 0.000 claims description 4
- 238000006243 chemical reaction Methods 0.000 claims description 3
- 239000012774 insulation material Substances 0.000 claims description 3
- 229920002635 polyurethane Polymers 0.000 claims description 2
- 239000004814 polyurethane Substances 0.000 claims description 2
- 239000002274 desiccant Substances 0.000 claims 13
- 230000008676 import Effects 0.000 claims 3
- 238000010521 absorption reaction Methods 0.000 claims 1
- 230000002093 peripheral effect Effects 0.000 claims 1
- 238000001179 sorption measurement Methods 0.000 description 6
- 238000001816 cooling Methods 0.000 description 5
- 238000005265 energy consumption Methods 0.000 description 4
- 239000011810 insulating material Substances 0.000 description 2
- 230000001681 protective effect Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000006227 byproduct Substances 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000005338 heat storage Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000011232 storage material Substances 0.000 description 1
- 239000013589 supplement Substances 0.000 description 1
Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F26—DRYING
- F26B—DRYING SOLID MATERIALS OR OBJECTS BY REMOVING LIQUID THEREFROM
- F26B15/00—Machines or apparatus for drying objects with progressive movement; Machines or apparatus with progressive movement for drying batches of material in compact form
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F26—DRYING
- F26B—DRYING SOLID MATERIALS OR OBJECTS BY REMOVING LIQUID THEREFROM
- F26B23/00—Heating arrangements
- F26B23/001—Heating arrangements using waste heat
- F26B23/002—Heating arrangements using waste heat recovered from dryer exhaust gases
- F26B23/005—Heating arrangements using waste heat recovered from dryer exhaust gases using a closed cycle heat pump system ; using a heat pipe system
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Abstract
本发明公开一种隧道式多级热泵串联干燥除湿系统，包括：多级加热室、多级除湿室、隧道式干燥室、回风道和混合室；所述多级加热室进口处设置有主风机，并与混合室相连；所述多级加热室出口与隧道式干燥室进口相连；所述隧道式干燥室出口通过回风道与多级除湿室进口相连；所述多级除湿室出口与混合室相连。本发明采用的封闭式多级热泵干燥除湿系统，杜绝外界环境的影响，相比单级热泵干燥系统，多级除湿有效地除去干燥空气中的水分和降低单级空气温差，多级加热有效地提高送风温度和降低单级空气温差，降低了压缩机的压比，提高了压缩机效率，有效提高了除湿效率。
The invention discloses a tunnel-type multi-stage heat pump series drying and dehumidification system, comprising: a multi-stage heating chamber, a multi-stage dehumidification chamber, a tunnel-type drying chamber, an air return duct and a mixing chamber; the entrance of the multi-stage heating chamber is provided with a main The fan is connected with the mixing chamber; the outlet of the multi-stage heating chamber is connected with the inlet of the tunnel-type drying chamber; the outlet of the tunnel-type drying chamber is connected with the inlet of the multi-stage dehumidification chamber through the air return channel; the outlet of the multi-stage dehumidification chamber is connected with the inlet of the multi-stage dehumidification chamber The mixing chamber is connected. The closed multi-stage heat pump drying and dehumidification system adopted in the present invention eliminates the influence of the external environment. Compared with the single-stage heat pump drying system, the multi-stage dehumidification can effectively remove the moisture in the dry air and reduce the single-stage air temperature difference, and the multi-stage heating can effectively Increase the air supply temperature and reduce the single-stage air temperature difference, reduce the pressure ratio of the compressor, improve the efficiency of the compressor, and effectively improve the dehumidification efficiency.
Description
技术领域technical field
本发明涉及农副产品的干燥技术领域。更具体地，涉及一种隧道式多级串联热泵干燥除湿系统。The invention relates to the technical field of drying of agricultural by-products. More specifically, it relates to a tunnel type multi-stage series heat pump drying and dehumidification system.
背景技术Background technique
热泵技术在物料干燥方面的应用已被大量国内外文献研究，在实际加工生产实践中国得到应用。在室外环境较低的地区，全开式系统和半开式系统易会造成蒸发器结霜的问题，导致热泵的性能较低，甚至不能够正常运行，严重的阻碍了热泵在寒冷地区的推广应用。供回温差较大时，单级热泵系统难以满足要求，造成压比过大。The application of heat pump technology in material drying has been studied by a large number of domestic and foreign literatures, and has been applied in actual processing and production practices in China. In areas where the outdoor environment is low, the fully open system and the semi-open system may easily cause the problem of frosting on the evaporator, resulting in low performance of the heat pump, or even malfunctioning, which seriously hinders the promotion of heat pumps in cold areas application. When the temperature difference between supply and return is large, it is difficult for the single-stage heat pump system to meet the requirements, resulting in an excessive pressure ratio.
因此，需要提供一种封闭式系统，该系统可以有效解决在寒冷地区热泵蒸发器结霜和隧道式单极热泵干燥除湿系统的供回风温差较大的问题。Therefore, it is necessary to provide a closed system, which can effectively solve the problem of frosting of the heat pump evaporator in cold regions and the large temperature difference between the supply and return air of the tunnel type single-pole heat pump drying and dehumidification system.
发明内容Contents of the invention
本发明的目的在于提供一种隧道式多级热泵串联干燥除湿系统，该系统可以有效地排除外界低温环境对热泵运行工况的影响，通过多级热泵串联干燥除湿系统可以有效地进行多级除湿和多级加热，满足供回温差较大的情况；通过结合太阳能可以降低热泵运行能耗，提高热泵运行效率。The purpose of the present invention is to provide a tunnel-type multi-stage heat pump series drying and dehumidification system, which can effectively eliminate the influence of the external low temperature environment on the operating conditions of the heat pump, and the multi-stage heat pump series drying and dehumidification system can effectively perform multi-stage dehumidification And multi-stage heating to meet the situation of large temperature difference between supply and return; by combining solar energy, the energy consumption of heat pump operation can be reduced and the efficiency of heat pump operation can be improved.
为达到上述目的，本发明采用下述技术方案：To achieve the above object, the present invention adopts the following technical solutions:
一种隧道式多级热泵串联干燥除湿系统，包括：多级加热室、多级除湿室、隧道式干燥室、回风道和混合室；A tunnel-type multi-stage heat pump series drying and dehumidification system, comprising: a multi-stage heating chamber, a multi-stage dehumidification chamber, a tunnel-type drying chamber, an air return duct and a mixing chamber;
多级加热室：通过调节压缩机的频率或启停和风机频率对多级加热室的循环空气升温加热量进行调控；Multi-stage heating chamber: adjust the heating capacity of the circulating air in the multi-stage heating chamber by adjusting the frequency of the compressor or the start-stop and fan frequency;
多级除湿室：通过调节压缩机的频率或启停和风机频率对多级除湿室的循环空气降温除湿量进行调控；Multi-stage dehumidification chamber: adjust the cooling and dehumidification capacity of the circulating air in the multi-stage dehumidification chamber by adjusting the frequency of the compressor or the start-stop and fan frequency;
隧道式干燥室：用于物料的干燥；Tunnel drying chamber: used for drying materials;
回风道：用于运送高温高湿的气体；Air return duct: used to transport high-temperature and high-humidity gas;
混合室：用于混合降温除湿后的空气与新风；Mixing chamber: used to mix cooled and dehumidified air with fresh air;
所述多级加热室进口处设置主风机，并与混合室相连；所述多级加热室出口与隧道式干燥室进口相连；所述隧道式干燥室出口通过回风道与多级除湿室进口相连；所述多级除湿室出口与混合室相连。A main fan is installed at the entrance of the multi-stage heating chamber and is connected to the mixing chamber; the outlet of the multi-stage heating chamber is connected to the entrance of the tunnel-type drying chamber; the exit of the tunnel-type drying chamber is connected to the entrance of the multi-stage dehumidification chamber through the return air duct connected; the outlet of the multistage dehumidification chamber is connected with the mixing chamber.
进一步，所述多级加热室包含至少两个冷凝器；所述多级除湿室包含至少两个蒸发器；每个蒸发器通过压缩机与冷凝器相连，冷凝器再通过膨胀阀与蒸发器相连构成独立的热泵系统，至少两个独立的热泵系统构成多级热泵系统；Further, the multi-stage heating chamber includes at least two condensers; the multi-stage dehumidification chamber includes at least two evaporators; each evaporator is connected to the condenser through a compressor, and the condenser is connected to the evaporator through an expansion valve Constitute an independent heat pump system, at least two independent heat pump systems constitute a multi-stage heat pump system;
优选的，所述主风机为变频风机，根据所需循环风量调节主风机的频率，使循环风量满足系统干燥工况要求，控制循环风量调节干燥速率；所述压缩机为变频压缩机。Preferably, the main fan is a variable frequency fan, the frequency of the main fan is adjusted according to the required circulating air volume, so that the circulating air volume meets the requirements of the drying conditions of the system, and the drying rate is adjusted by controlling the circulating air volume; the compressor is a variable frequency compressor.
进一步，所述主风机与多级加热室的冷凝器距离充分，以保证使气流在多级加热室分布均匀；优选的，所述距离大于0.5m。Further, the distance between the main fan and the condenser of the multi-stage heating chamber is sufficient to ensure that the air flow is evenly distributed in the multi-stage heating chamber; preferably, the distance is greater than 0.5m.
所述多级除湿室内的蒸发器下部放置蓄水盘，蓄水盘上设有排出管道。A water storage tray is placed at the lower part of the evaporator in the multi-stage dehumidification chamber, and a discharge pipe is arranged on the water storage tray.
所述隧道式干燥室的前部与尾部分别设置多孔板，并设置隧道式干燥室前门和隧道式干燥室后门。The front and rear of the tunnel-type drying chamber are respectively provided with porous plates, and a front door of the tunnel-type drying chamber and a rear door of the tunnel-type drying chamber are arranged.
所述多级除湿室与混合室之间设置挡水板。A water baffle is set between the multistage dehumidification chamber and the mixing chamber.
所述隧道式多级热泵串联干燥除湿系统的外围护结构为保温材料；优选的，所述保温材料为聚氨酯保温板。The outer protective structure of the tunnel-type multi-stage heat pump series drying and dehumidification system is an insulating material; preferably, the insulating material is a polyurethane insulating board.
所述的隧道式多级热泵串联干燥除湿系统还包括太阳能系统，该太阳能系统由透光隔热板、吸附结构和新风口组成，并与混合室通过新风口连通；其可预热补进系统的室外新风。The tunnel-type multi-stage heat pump series drying and dehumidification system also includes a solar system, which is composed of a light-transmitting heat insulation board, an adsorption structure, and a fresh air outlet, and communicates with the mixing chamber through the fresh air outlet; it can preheat and supplement the system outdoor fresh air.
所述透光隔热板为有效地透射较多的太阳光以及隔热作用。The light-transmitting heat-insulating board effectively transmits more sunlight and has a heat-insulating effect.
所述吸附结构内部置蓄热材料，外表面置太阳能吸附材料，可以有效地吸附太阳能和储能。The heat storage material is placed inside the adsorption structure, and the solar energy adsorption material is placed on the outer surface, which can effectively absorb solar energy and store energy.
所述新风口为可调开度的风阀。The new air outlet is an air valve with adjustable opening.
所述系统通过控制开关、温度控制器、湿度控制器、PLC面板进行控制；相关控制程序编写使用本领域公知方式完成。The system is controlled by a control switch, a temperature controller, a humidity controller, and a PLC panel; the writing of related control programs is completed by means known in the art.
一种利用上述隧道式多级热泵串联干燥除湿系统干燥物料的方法：A method for drying materials using the above-mentioned tunnel-type multi-stage heat pump series drying and dehumidification system:
在主风机的作用下，气体依次从第1级冷凝器到第n级冷凝器进行逐级加热升温，逐级加热升温的气体进入到隧道式干燥室，与新鲜的物料进行热湿传递，得到高温高湿的气体通过回风道依次从第n级蒸发器到第1级蒸发器进行逐级降温除湿，逐级降温除湿后的空气进入到混合室，通过主风机再次进入从第1级冷凝器到第n级冷凝器完成循环；Under the action of the main fan, the gas is heated step by step from the first-stage condenser to the n-stage condenser, and the step-by-step heated gas enters the tunnel-type drying chamber, where it conducts heat and moisture transfer with fresh materials, and obtains The high-temperature and high-humidity gas is cooled and dehumidified step by step from the n-stage evaporator to the first-stage evaporator through the return air duct. The air after step-by-step cooling and dehumidification enters the mixing chamber, and enters again through the main fan to condense from the first stage. The cycle is completed from the condenser to the nth stage condenser;
其中，所述新鲜的物料装载在所述隧道式干燥室后门一侧，物料在隧道式干燥室内沿着相反的送风方向逐渐移动，隧道式干燥室前门一侧卸载出干燥好的物料；Wherein, the fresh material is loaded on the side of the back door of the tunnel drying chamber, and the material gradually moves along the opposite air supply direction in the tunnel drying chamber, and the dried material is unloaded from the front door of the tunnel drying chamber;
在干燥物料的过程中，系统的补风量为零时，系统进行封闭式干燥除湿，整个系统的除湿量是在多级除湿室进行的，排除外界环境对系统运行工况的影响。In the process of drying materials, when the supplementary air volume of the system is zero, the system performs closed drying and dehumidification. The dehumidification of the whole system is carried out in multi-stage dehumidification chambers to eliminate the influence of the external environment on the operating conditions of the system.
在进行物料装载或卸载时，系统需要补一部分新风，新风从新风口进入太阳能系统进行预热处理，从新风口排入混合室，与逐级降温除湿后的空气进行混合，完成上述步骤；由于从太阳能系统进入，室外新风被预热，降低热泵机组的能耗。When loading or unloading materials, the system needs to make up some fresh air. The fresh air enters the solar system from the fresh air outlet for preheating treatment, and is discharged into the mixing chamber from the fresh air outlet to mix with the dehumidified air that has been cooled step by step to complete the above steps; When the system enters, the outdoor fresh air is preheated, reducing the energy consumption of the heat pump unit.
在整个系统的运行中，主风机的风量以及热泵机组压缩机启停或变频通过控制系统进行操控；相关控制程序编写使用本领域公知方式完成。During the operation of the whole system, the air volume of the main fan and the start-stop or frequency conversion of the compressor of the heat pump unit are controlled through the control system; the related control programs are written using methods known in the art.
本发明的有益效果如下：The beneficial effects of the present invention are as follows:
(1)本发明为多级加热除湿系统有效地除去干燥空气中的水分和降低单级空气温差，多级加热有效地提高送风温度和降低单级空气温差，降低单级压缩机的压缩比，提高压缩机的效率。(1) The present invention is a multi-stage heating and dehumidification system that effectively removes moisture in the dry air and reduces the temperature difference of single-stage air, and multi-stage heating effectively increases the temperature of the air supply and reduces the temperature difference of single-stage air, and reduces the compression ratio of the single-stage compressor , improve the efficiency of the compressor.
(2)本发明采用太阳能作为辅助热源，有效地提高压缩机的效率，降低能耗。吸附结构显著地吸附太阳能并储蓄，可以提高太阳能的利用率。(2) The present invention uses solar energy as an auxiliary heat source to effectively improve the efficiency of the compressor and reduce energy consumption. The adsorption structure significantly absorbs and stores solar energy, which can improve the utilization rate of solar energy.
(3)本发明外围护结构采用保温材料，且本系统为全封闭系统，可以有效地排除外界环境的影响，使系统在低温地区仍然保持稳定的运行工况。(3) The outer protective structure of the present invention adopts thermal insulation materials, and the system is a fully enclosed system, which can effectively eliminate the influence of the external environment, so that the system can still maintain a stable operating condition in low-temperature regions.
(4)本发明的隧道式干燥室为隧道式干燥，隧道式干燥室前部(靠近送风口处)一侧取出干燥好的物料，在隧道式干燥室尾部(靠近回风口处)一侧添加新鲜的物料，能够实现连续式干燥，提高干燥效率。(4) The tunnel-type drying chamber of the present invention is tunnel-type drying, and the dried material is taken out from the front of the tunnel-type drying chamber (near the air supply outlet), and added to the side of the tunnel-type drying chamber tail (near the air return outlet). Fresh materials can realize continuous drying and improve drying efficiency.
附图说明Description of drawings
下面结合附图对本发明的具体实施方式作进一步详细的说明。The specific implementation manners of the present invention will be further described in detail below in conjunction with the accompanying drawings.
图1示出隧道式的多级热泵串联干燥除湿系统的结构示意图；Fig. 1 shows the structural representation of the tunnel type multi-stage heat pump series drying and dehumidification system;
其中，N1、N2、Nn：第一级、第二级、第n级压缩机；C1、C2、Cn：第一级、第二级、第n级冷凝器；V1、V2、Vn：第一级、第二级、第n级膨胀阀；E1、E2、En：第一级、第二级、第n级蒸发器；1：主风机；2：多级加热室；3：多孔板；4：隧道式干燥室前门；5：隧道式干燥室；6：隧道式干燥室后门；7：回风道；8：多级加热室；9：挡水板；10：混合室；11、14：新风口；12：透明隔热板；13：吸附结构；15：外围护结构。Among them, N1, N2, Nn: first stage, second stage, nth stage compressor; C1, C2, Cn: first stage, second stage, nth stage condenser; V1, V2, Vn: first stage stage, second stage, nth stage expansion valve; E1, E2, En: first stage, second stage, nth stage evaporator; 1: main fan; 2: multistage heating chamber; 3: perforated plate; 4 : Front door of tunnel drying chamber; 5: Tunnel drying chamber; 6: Back door of tunnel drying chamber; 7: Air return duct; 8: Multi-stage heating chamber; Fresh air outlet; 12: Transparent insulation board; 13: Adsorption structure; 15: External protection structure.
具体实施方式detailed description
为了更清楚地说明本发明，下面结合优选实施例和附图对本发明做进一步的说明。附图中相似的部件以相同的附图标记进行表示。本领域技术人员应当理解，下面所具体描述的内容是说明性的而非限制性的，不应以此限制本发明的保护范围。In order to illustrate the present invention more clearly, the present invention will be further described below in conjunction with preferred embodiments and accompanying drawings. Similar parts in the figures are denoted by the same reference numerals. Those skilled in the art should understand that the content specifically described below is illustrative rather than restrictive, and should not limit the protection scope of the present invention.
在本发明的描述中，除非另有说明，“多个”的含义是两个或两个以上；术语“上”、“下”、“左”、“右”、“内”、“外”、“前端”、“后端”、“头部”、“尾部”等指示的方位或位置关系为基于附图所示的方位或位置关系，仅是为了便于描述本发明和简化描述，而不是指示或暗示所指的装置或元件必须具有特定的方位、以特定的方位构造和操作，因此不能理解为对本发明的限制。In the description of the present invention, unless otherwise stated, the meaning of "plurality" is two or more; the terms "upper", "lower", "left", "right", "inner", "outer" , "front end", "rear end", "head", "tail", etc. indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than Nothing indicating or implying that a referenced device or element must have a particular orientation, be constructed, and operate in a particular orientation should therefore not be construed as limiting the invention.
实施例1一种隧道式多级热泵串联干燥除湿系统Embodiment 1 A tunnel-type multi-stage heat pump series drying and dehumidification system
一种隧道式多级热泵串联干燥除湿系统，如图1所示，包括：多级加热室2、多级除湿室8、隧道式干燥室5、回风道7和混合室10；A tunnel-type multi-stage heat pump series drying and dehumidification system, as shown in Figure 1, includes: a multi-stage heating chamber 2, a multi-stage dehumidification chamber 8, a tunnel-type drying chamber 5, a return air duct 7 and a mixing chamber 10;
所述多级加热室2进口处设置有主风机1，并与混合室10相连通；所述多级加热室2出口与隧道式干燥室5进口相连通，在隧道式干燥室5的前部与尾部分别设置多孔板3，并设置有隧道式干燥室前门4和隧道式干燥室后门6；所述隧道式干燥室5出口通过回风道7与多级除湿室8进口相连通；所述多级除湿室8出口与混合室10相连通，并且之间设置挡水板9。所述多级加热室2至少包含两个冷凝器C1-Cn；所述多级除湿室8包含至少两个蒸发器E1-En；蒸发器下部放置蓄水盘，蓄水盘上设有排出管道；每个蒸发器通过压缩机与冷凝器相连，冷凝器再通过膨胀阀与蒸发器相连构成独立的热泵系统，至少两个独立的热泵系统构成多级热泵系统。The entrance of the multi-stage heating chamber 2 is provided with a main blower 1, and communicates with the mixing chamber 10; The perforated plate 3 is respectively arranged at the rear part, and the front door 4 of the tunnel drying chamber and the back door 6 of the tunnel drying chamber are provided; the outlet of the tunnel drying chamber 5 is connected with the inlet of the multi-stage dehumidification chamber 8 through the return air duct 7; The outlet of the multi-stage dehumidification chamber 8 communicates with the mixing chamber 10, and a water baffle 9 is arranged between them. The multi-stage heating chamber 2 includes at least two condensers C1-Cn; the multi-stage dehumidification chamber 8 includes at least two evaporators E1-En; a water storage tray is placed on the lower part of the evaporator, and a discharge pipe is arranged on the water storage tray ; Each evaporator is connected to a condenser through a compressor, and the condenser is connected to an evaporator through an expansion valve to form an independent heat pump system, and at least two independent heat pump systems form a multi-stage heat pump system.
本系统还包括太阳能系统，所述太阳能系统由透光隔热板12、吸附结构13和新风口11、14组成，与混合室10通过新风口14连通。The system also includes a solar system, which is composed of a light-transmitting heat insulation board 12 , an adsorption structure 13 , and fresh air outlets 11 and 14 , and communicates with the mixing chamber 10 through the fresh air outlet 14 .
本系统还包括控制系统，所述控制系统包括控制开关、温度控制器、湿度控制器、PLC面板(图1中未显示)The system also includes a control system, which includes a control switch, a temperature controller, a humidity controller, and a PLC panel (not shown in Figure 1)
实施例2隧道式多级热泵串联干燥除湿系统干燥物料的方法Example 2 Method for drying materials in a tunnel-type multi-stage heat pump series drying and dehumidification system
在主风机1的作用下，气体依次从第1级冷凝器C1到第n级冷凝器Cn进行逐级加热升温，逐级加热升温的气体进入到隧道式干燥室5，与新鲜的物料进行热湿传递，得到高温高湿的气体通过回风道7依次从第n级蒸发器En到第1级蒸发器E1进行逐级降温除湿，逐级降温除湿后的空气进入到混合室(10)，通过主风机1再次进入从第1级冷凝器C1到第n级冷凝器Cn完成循环；Under the action of the main fan 1, the gas is heated and heated step by step from the first-stage condenser C1 to the n-stage condenser Cn, and the step-by-step heated gas enters the tunnel-type drying chamber 5 and is heated with fresh materials. Humidity transfer, the high-temperature and high-humidity gas passes through the return air duct 7 to carry out step-by-step cooling and dehumidification from the nth-stage evaporator En to the first-stage evaporator E1, and the air after step-by-step cooling and dehumidification enters the mixing chamber (10), Through the main fan 1, it enters again from the first-stage condenser C1 to the n-th-stage condenser Cn to complete the cycle;
其中，所述新鲜的物料装载在所述隧道式干燥室后门6一侧，物料在隧道式干燥室5内沿着相反的送风方向逐渐移动，隧道式干燥室前门4一侧卸载出干燥好的物料，可实现连续式干燥，提高干燥效率；Wherein, the fresh material is loaded on the side of the back door 6 of the tunnel drying chamber, and the material gradually moves along the opposite air supply direction in the tunnel drying chamber 5, and is unloaded on the front door 4 side of the tunnel drying chamber for drying. It can achieve continuous drying and improve drying efficiency;
在干燥物料过程中，系统的补风量为零时，系统进行封闭式干燥除湿，有效地排除外界环境的影响，使系统在低温地区仍然保持稳定的运行工况；In the process of drying materials, when the supplementary air volume of the system is zero, the system performs closed drying and dehumidification, effectively eliminating the influence of the external environment, so that the system can still maintain a stable operating condition in low temperature areas;
在进行物料装载或卸载时，系统需要补一部分新风，新风从新风口11进入太阳能系统进行预热处理，从新风口14排入混合室10，与逐级降温除湿后的空气进行混合，完成上述步骤；太阳能作为辅助热源，有效地提高压缩机的效率，降低能耗。When loading or unloading materials, the system needs to replenish a part of fresh air. The fresh air enters the solar energy system from the fresh air port 11 for preheating treatment, and is discharged into the mixing chamber 10 from the fresh air port 14, and is mixed with the air after step-by-step cooling and dehumidification to complete the above steps; Solar energy is used as an auxiliary heat source to effectively improve the efficiency of the compressor and reduce energy consumption.
在整个系统的运行中，主风机1的风量以及热泵机组压缩机N1-Nn启停或变频通过控制系统进行操控。During the operation of the whole system, the air volume of the main fan 1 and the start-stop or frequency conversion of the compressors N1-Nn of the heat pump unit are controlled by the control system.
显然，本发明的上述实施例仅仅是为清楚地说明本发明所作的举例，而并非是对本发明的实施方式的限定，对于所属领域的普通技术人员来说，在上述说明的基础上还可以做出其它不同形式的变化或变动，这里无法对所有的实施方式予以穷举，凡是属于本发明的技术方案所引伸出的显而易见的变化或变动仍处于本发明的保护范围之列。Apparently, the above-mentioned embodiments of the present invention are only examples for clearly illustrating the present invention, and are not intended to limit the implementation of the present invention. Those of ordinary skill in the art can also make It is impossible to exhaustively list all the implementation modes here, and any obvious changes or changes derived from the technical solutions of the present invention are still within the scope of protection of the present invention.
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| CN108668946A (en) * | 2018-07-20 | 2018-10-19 | 江苏省家禽科学研究所 | A kind of pouity dwelling place ammonia concentration control system and its control method |
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