WO2010108403A1 - Long air pipe for distributing supplying air and returning air ratedly and uniformly - Google Patents
Long air pipe for distributing supplying air and returning air ratedly and uniformly Download PDFInfo
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- WO2010108403A1 WO2010108403A1 PCT/CN2010/070824 CN2010070824W WO2010108403A1 WO 2010108403 A1 WO2010108403 A1 WO 2010108403A1 CN 2010070824 W CN2010070824 W CN 2010070824W WO 2010108403 A1 WO2010108403 A1 WO 2010108403A1
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- branch pipe
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Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F7/00—Ventilation
- F24F7/04—Ventilation with ducting systems, e.g. by double walls; with natural circulation
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F13/00—Details common to, or for air-conditioning, air-humidification, ventilation or use of air currents for screening
- F24F13/02—Ducting arrangements
- F24F13/06—Outlets for directing or distributing air into rooms or spaces, e.g. ceiling air diffuser
Definitions
- the utility model relates to the technical field of air volume regulation, in particular to a long air duct shunt rated uniform delivery and return air device suitable for use in a subway or building environment control system and an air conditioning ventilation system.
- the long air duct is sent and the air return mode is used.
- the long air duct is composed of several identical shapes, from the total air duct and through.
- the valve body of the three ventilation valves formed by the branch pipe interface and the bypass pipe connection interface is formed by the interconnected total air pipe and the straight pipe branch interface, and the flow direction of the air flow entering the total air pipe and the pressure inside the branch pipe, Suction-related, the airflow sent by the external pressure is usually linear in the case of no external interference during the travel, so that most of the airflow flows to the straight-through branch, and only a small part of the airflow is in the bypass branch Under the internal static pressure, the turning flow flows to the bypass branch pipe, and since there is no air distribution control device inside the valve body, even if the static pressure in each bypass branch pipe is the same, when the air flow volume of the incoming air flow is large When the bypass branch of the near-end end is more likely to have a larger air volume than the bypass branch
- the cross-sectional area of the valve body composed of the total air duct and the straight-through branch pipe on the three ventilation valves is gradually reduced while maintaining the cross-sectional area of the bypass branch pipe interface to maintain
- the airflow velocity and the gas flow pressure in the long air duct are basically unchanged, thereby ensuring that the bypass branch pipe of each stage obtains a substantially similar airflow volume, but in practice, it is found that the airflow dynamic pressure is close to the tail end of several stages of the bypass branch pipe interface.
- the second is shown in Figure 3 while maintaining the cross-sectional area of the long air duct is basically unchanged, the bypass branch pipe interface is increased step by step.
- the cross-sectional area dimension is designed to overcome the weak point where the dynamic pressure of the airflow in the long air duct is closer to the tail end, so as to ensure the bypass branch of each stage by increasing the cross-sectional area size of the bypass branch pipe step by step.
- the amount of air in and out is basically similar, but in practice, it is found that the dynamic pressure in the long air duct is getting smaller and smaller, and it is actually difficult to control. It is very difficult to realize, and the material of this structure is long duct.
- the input and processing costs are both high, so the operability and economy are poor.
- the third is shown in Figure 4.
- the regulating valve is added to the interface of each bypass branch of each stage.
- the method of adjusting the opening degree of the control valve makes the air volume of each bypass branch pipe tend to be similar, but in practice, it is found that the air volume adjustment of any one regulating valve will cause the full pressure change in the long air duct, thereby causing the other adjustments to be affected. Or the air volume of the bypass branch pipe that has not been adjusted, so that it is not only waste time and waste force during operation, but also it is difficult to achieve uniform return of wind. It can be seen from the above that the inability to achieve uniform delivery and return air is a major problem that has long existed in the long-window returning wind process of the existing structure, which seriously affects the work quality of the building environmental control system and the air conditioning ventilation system. , there is a lot of research to overcome. Summary of the invention
- the purpose of the utility model is to overcome the prior art long air duct return air working process
- the long air duct shunt rated uniform delivery and return air device of the utility model is realized as follows: Firstly, the traditional valve body connection of three ventilation valves composed of a total air duct, a straight branch pipe interface and a bypass branch pipe interface is realized. Calculate the ratio of the number of three ventilation valves provided on the long air duct and the total duct cross-sectional area of the first three ventilation valves to calculate the ratio of the average split air volume allowed to be allocated to the bypass branch pipe on each of the three ventilation valves.
- the cross-sectional area size is taken as the proportional cross-sectional area size of the rated split flow per stage, and then the conventional three-ventilation valve is replaced by the air-flow split three-way valve with the rated split function, and the rated split flow per stage is described.
- the ratio of the cross-sectional area of the air volume is used as the basis for the flow-divided cross-sectional area of the rated bypass flow control flow to the bypass pipe of each stage of the air flow split three-way valve, and also serves as the basis for reducing the cross-sectional area size of the valve bodies of each stage.
- the proportion of the total air intake ratio of the front-stage valve body to the cross-sectional area of the first-stage valve body is deducted from the rated split air flow rate of the flow-divided three-way valve shunt control flow of the stage to the bypass branch pipe.
- the cross-sectional area size is proportional to the cross-sectional area size of the airflow output from the through-pipe branch interface, which is equal to the proportional cross-sectional area of the inflow airflow of the total air duct of the latter-stage valve body, so that the flow through the long-distance air duct
- the wind speed and dynamic pressure at the junction of the three-way valve total air duct interface tend to be the same, and ensure that the air volume of each bypass branch pipe on the long air duct tends to be similar, achieving the purpose of uniform delivery and return air.
- the main body of the long air duct shunt rated uniform feeding and returning air device is composed of a long air duct and a bypass branch pipe, and the long air duct is composed of a plurality of main air ducts, a straight branch pipe joint and a bypass branch pipe interface.
- the valve body of the three ventilation valves is connected, and the valve body is composed of an interconnected total air duct and a straight branch pipe joint, characterized in that the three ventilation valves are provided by
- the improved three-ventilation valve of the constant air volume diverting function is a modified three-ventilating valve which is gradually reduced by a plurality of valve body cross-sectional area sizes according to the proportion of the cross-sectional area of the rated split air volume of each stage.
- the improved three-ventilating valve body is composed of a total air duct, a straight branch pipe interface and a bypass branch pipe connection, and three ventilation valves are added on the inner surface of the total air duct of the three ventilation valves, one end and one side
- the cross-sectional area of the branch pipe is connected with a rectangular or ⁇ -shaped shunt tube having a certain height and width corresponding to the proportional cross-sectional area size of each rated shunt air volume.
- the rectangular or ⁇ -type shunt tube can be set to a height or width adjustable fixed type or a series of optional type; one side or open side of the rectangular or ⁇ -type shunt tube is closely disposed on the valve
- the body air duct is provided on one side of the bypass branch pipe connection.
- a rectangular or ⁇ -type shunt tube with a certain height and width, cross-sectional area size and proportional cross-sectional area size of each rated shunt air volume is used as the rated split air flow path to the bypass branch pipe air flow, and at the same time due to the long wind
- the valve bodies at all levels on the pipe are gradually reduced in size according to the cross-sectional area of the rated split air volume of each stage, so that the flow velocity and dynamic pressure of the airflow in each valve body tend to be similar. Therefore, it can ensure that the bypass branch pipe on the valve body of each stage on the long air pipe obtains a substantially similar air flow volume, thereby achieving uniform delivery and return air of the long air pipe.
- the utility model is characterized in that the long air pipe of the utility model is provided with a uniform air supply and return air device according to the above concept, and the long air pipe is arranged to be reduced in size and cross-sectional area by a plurality of valve bodies according to the rated split air volume of each stage, and has a rated
- the improved three-ventilation valve connection of the air flow diverting function ensures a relatively stable wind speed and a relatively constant dynamic pressure in the long air duct, thereby ensuring uniform delivery and return of each bypass branch under the rated distribution flow rate.
- the long air duct shunt rated uniform feeding and returning air device of the utility model effectively solves a long-term problem that the long air duct return and the wind are generally unable to achieve uniform feeding and returning air, and has the device.
- the utility model has the advantages of simple structure, scientific and reasonable, convenient setting and reliable work, and has strong practicability and valuable application prospects in the market.
- FIG. 1 is a schematic structural view of one of the prior art of the present invention.
- FIG. 3 is a schematic structural view of the third prior art of the present invention.
- FIG. 4 is a schematic structural view of a fourth prior art of the present invention.
- Figure 5 is a schematic structural view of an embodiment of the present invention.
- FIG. 6 is a schematic view showing the structure of an improved three-ventilating valve in the embodiment of the present invention. In the picture:
- the long air duct with the function of sending and returning air is composed of a plurality of three ventilation valves 4 composed of a total air duct 1, a straight branch pipe joint 2 and a bypass branch pipe connection 3, and is composed of a total air duct 1 and a straight branch pipe joint 2
- the valve body of the three ventilation valve 4 draws or steps down the cross-sectional area of the valve body of the three ventilation valve 4, or increases the cross-sectional area size of the bypass branch pipe 3 step by step, or in the bypass branch pipe
- the method of setting the regulating valve 5 on the interface 3 and adjusting the opening degree of the control valve step by step is adopted, so that the air volume of each bypass branch pipe tends to be similar, but in practice, the operability is poor.
- the main body of the long draft pipe of the present invention is composed of a long air duct and a bypass branch pipe
- the long air duct is composed of a plurality of main air ducts 1 and a straight branch pipe joint.
- the valve body of the three ventilation valve 4 formed by the bypass branch pipe connection 3 the valve body is composed of the interconnected total air duct 1 and the straight branch pipe connection 2, characterized in that the three ventilation valve 4 has a rated air volume
- the improved three-ventilation valve 6 of the splitting function is filled, and the long air duct is gradually reduced by a plurality of valve body cross-sectional area sizes according to the proportion of the cross-sectional area of the rated split air volume of each stage.
- the modified three-ventilation valve 6 main body is composed of a total air duct 1, a straight branch pipe joint 2 and a bypass branch pipe connection 3.
- the main air duct 1 On the inner surface of the main air duct 1, an end is provided on the inner surface of the main duct 1 and the bypass branch pipe is provided.
- a rectangular or ⁇ -shaped shunt tube 7 having a height and a width corresponding to the cross-sectional area size of the rated split air volume of each stage.
- the rectangular or ⁇ -type shunt tube 7 is provided as a height or width adjustable fixed type or a series of optional type, and one side or open side is closely disposed on the valve body total air duct 1 and is provided with a bypass branch pipe. On one side of the interface 3.
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Abstract
A long air pipe for distributing supplying air and returning air ratedly and uniformly is made up of a long windpipe and bypass branch pipes. The long windpipe consists of several three-way wind valves (4) connected together. The three-way wind valves (4) have the function of rated distribution, and the cross-sectional area of each three-way wind valve (4) of the long windpipe is gradually reduced according to the proportion of distributed rated wind quantity of each level Rectangular or π -shaped distributing pipes (7) with certain height and width are disposed at the inner surfaces of the three-way wind valves (4). One end of the distributing pipe (7) is connected with ajoint (3) of the bypass branch pipe, and the cross-sectional area of each distributing pipe (7) is corresponding to the dimension of the proportional cross-sectional area of the distributed rated wind quantity of each level It is ensured by each three-way wind valve (4) that each bypass branch pipe is basically similar in the air flow quantity acquired, and uniform air supply and air return of long windpipe is achieved.
Description
一种额定、 均匀地分流的送、 回风 Rated and evenly distributed, returning and returning air
的长风管 技术领域 Long air duct
本实用新型涉及风量调节技术领域，特别是一种适用于地铁或建 筑物环控系统和空调通风系统中的长风管分流额定式均匀送、回风装 置。 The utility model relates to the technical field of air volume regulation, in particular to a long air duct shunt rated uniform delivery and return air device suitable for use in a subway or building environment control system and an air conditioning ventilation system.
背景技术 Background technique
目前在地铁或建筑物环控系统和空调通风系统中较多地釆用长 风管送、 回风方式，如图 1所示， 长风管由数个形状完全相同、 由总 风管、直通支管接口和旁通支管接口构成的三通风阀的阀体连接而成, 阀体由互连的总风管和直通支管接口构成，由于进入总风管的气流风 量的流向与支管内部的压力、 吸力相关， 由外界压力驱使送入的气流 风量通常在行进途中无外力干扰的情况下基本上为直线运动，因而致 使大部分的气流风量流向直通支管，只有极小部分的气流风量在旁通 支管上存在的内部静压作用下转折流向旁通支管，且由于在阀体内部 没有气流分配控制装置， 即使在各旁通支管内的静压相同的情况下， 当进入的气流风量动压较大时，往往近尾端部的旁通支管的得风量大 于近前端部的旁通支管的得风量， 而当进入风量的动压较小时， 往往 是近前端部的旁通支管的得风量大于近尾端部的旁通支管的得风量， 所以， 这种传统结构形式的长风管内各旁通支管的得风量是不均匀 的， 因而不能满足实际使用要求。 为了改善长风管内各旁通支管得风 量不均的状况， 业界积极探索， 近几年来出现了下列三种结构改进措
施： 其一如图 2所示， 在保持旁通支管接口横截面积尺寸不变的情况 下逐级缩小三通风阀上由总风管和直通支管构成的阀体横截面积尺 寸， 以保持长风管内的气流速度和气流动压基本不变， 从而确保每级 的旁通支管获得基本相近的气流风量， 但在实践中发现， 由于空气动 压在接近尾端部几级的旁通支管接口时会自动转化为静压，因而无法 实现均匀送回风的目的； 其二如图 3所示， 在保持长风管横截面积尺 寸基本不变的基础上逐级增大旁通支管接口的横截面积尺寸，其目的 是要克服气流风量在长风管内的动压越接近尾端越小的弱点，以通过 逐级增大旁通支管接口横截面积尺寸的方法确保每级旁通支管的进 回风量基本相近，但在实践中发现，由于长风管内的动压在不断变小， 事实上也很难控制， 实现的难度很大， 而且这种结构形式长风管的材 料投入和加工成本均很高， 因而可操作性和经济性均差； 其三如图 4 所示， 在每级每个旁通支管的接口部位上均增加设置调节阀， 工作时 釆取逐级调节控制阀门开启度的方法使各旁通支管的得风量趋于相 近， 但在实践中发现， 由于任何一个调节阀的风量调节都会导致长风 管内全压的变化，从而导致影响其他已调节好或还没调节过的旁通支 管的得风量， 因而不仅操作时废时、 废力， 而且也很难实现均匀送回 风的目的。 由上可见， 无法实现均匀送、 回风是现有结构形式的长风 管送回风工作过程中长期以来普遍存在的一大难题，严重影响着建筑 物环控系统和空调通风系统的工作质量， 很有加以研究克服的必要。 发明内容 At present, in the subway or building environmental control system and air conditioning ventilation system, the long air duct is sent and the air return mode is used. As shown in Figure 1, the long air duct is composed of several identical shapes, from the total air duct and through. The valve body of the three ventilation valves formed by the branch pipe interface and the bypass pipe connection interface is formed by the interconnected total air pipe and the straight pipe branch interface, and the flow direction of the air flow entering the total air pipe and the pressure inside the branch pipe, Suction-related, the airflow sent by the external pressure is usually linear in the case of no external interference during the travel, so that most of the airflow flows to the straight-through branch, and only a small part of the airflow is in the bypass branch Under the internal static pressure, the turning flow flows to the bypass branch pipe, and since there is no air distribution control device inside the valve body, even if the static pressure in each bypass branch pipe is the same, when the air flow volume of the incoming air flow is large When the bypass branch of the near-end end is more likely to have a larger air volume than the bypass branch of the near-end end, when the dynamic pressure of the incoming air volume is small, it is often near The air volume of the bypass branch pipe of the part is larger than the air volume of the bypass branch pipe near the tail end. Therefore, the air volume of each bypass branch pipe in the long wind pipe of the conventional structure is not uniform, and thus cannot meet the actual use requirements. . In order to improve the uneven air volume of each bypass pipe in the long air duct, the industry actively explores the following three structural improvement measures in recent years. Application: As shown in Fig. 2, the cross-sectional area of the valve body composed of the total air duct and the straight-through branch pipe on the three ventilation valves is gradually reduced while maintaining the cross-sectional area of the bypass branch pipe interface to maintain The airflow velocity and the gas flow pressure in the long air duct are basically unchanged, thereby ensuring that the bypass branch pipe of each stage obtains a substantially similar airflow volume, but in practice, it is found that the airflow dynamic pressure is close to the tail end of several stages of the bypass branch pipe interface. When it is automatically converted into static pressure, it can not achieve the purpose of evenly returning the wind; the second is shown in Figure 3, while maintaining the cross-sectional area of the long air duct is basically unchanged, the bypass branch pipe interface is increased step by step. The cross-sectional area dimension is designed to overcome the weak point where the dynamic pressure of the airflow in the long air duct is closer to the tail end, so as to ensure the bypass branch of each stage by increasing the cross-sectional area size of the bypass branch pipe step by step. The amount of air in and out is basically similar, but in practice, it is found that the dynamic pressure in the long air duct is getting smaller and smaller, and it is actually difficult to control. It is very difficult to realize, and the material of this structure is long duct. The input and processing costs are both high, so the operability and economy are poor. The third is shown in Figure 4. The regulating valve is added to the interface of each bypass branch of each stage. The method of adjusting the opening degree of the control valve makes the air volume of each bypass branch pipe tend to be similar, but in practice, it is found that the air volume adjustment of any one regulating valve will cause the full pressure change in the long air duct, thereby causing the other adjustments to be affected. Or the air volume of the bypass branch pipe that has not been adjusted, so that it is not only waste time and waste force during operation, but also it is difficult to achieve uniform return of wind. It can be seen from the above that the inability to achieve uniform delivery and return air is a major problem that has long existed in the long-window returning wind process of the existing structure, which seriously affects the work quality of the building environmental control system and the air conditioning ventilation system. , there is a lot of research to overcome. Summary of the invention
本实用新型的目的是要克服现有技术的长风管送回风工作过程
中所存在的不能确保向各旁通支管均匀送、 回风的弊端， 提供一种长 风管分流额定式均匀送、 回风装置。 The purpose of the utility model is to overcome the prior art long air duct return air working process There is a drawback that there is no guarantee that the bypass pipe can be uniformly sent and returned to the respective bypass pipes, and a long-flow pipe rated rated uniform delivery and return air device is provided.
本实用新型的长风管分流额定式均匀送、回风装置是这样实现的： 首先对传统的由数个由总风管、直通支管接口和旁通支管接口构成的 三通风阀的阀体连接构成的长风管上所设置的三通风阀的数量和起 始级三通风阀的总风管横截面积尺寸计算出每级三通风阀上的旁通 支管允许分配到的平均分流风量的比例横截面积尺寸，并将此作为每 级额定分流风量的比例横截面积尺寸，然后釆用具有额定分流功能的 风量分流三通阀取代传统的三通风阀，并按所述的每级额定分流风量 的比例横截面积尺寸作为每级风量分流三通阀进行额定分流控制流 向本级旁通支管风量比例横截面积尺寸的依据，同时也作为各级阀体 逐级缩小横截面积尺寸的依据，使前一级阀体的总进风量比例横截面 积尺寸在扣除由该级的风量分流三通阀分流控制流向旁通支管的额 定分流风量的比例横截面积尺寸后由直通支管接口输出的气流风量 的比例横截面积尺寸等于后一级阀体总风管的流入气流风量的比例 横截面积尺寸，从而使流经长风管内各级风量分流三通阀总风管接口 交接处的风速和动压趋于一致，并确保长风管上各旁通支管的得风量 趋于相近， 实现均匀送、 回风的目的。 基于上述构思的本实用新型长风管分流额定式均匀送、回风装置 主体由长风管和旁通支管构成， 长风管由数个由总风管、 直通支管接 口和旁通支管接口构成的三通风阀的阀体连接而成，所述的阀体由互 连的总风管和直通支管接口构成，特征在于所述的三通风阀由具有额
定风量分流功能的改进型三通风阀充任，所述的长风管由一组数个阀 体横截面积尺寸按每级额定分流风量的比例横截面积尺寸逐级缩小 的改进型三通风阀相连而成， 其中： 所述的改进型三通风阀主体由总 风管、直通支管接口和旁通支管接口构成的三通风阀和增加设置在三 通风阀的总风管内表面上、 一端与旁通支管接口相连、 横截面积尺寸 与每级额定分流风量的比例横截面积尺寸相符、具有一定高度和宽度 的矩形或 Π型分流管构成。此外， 所述的矩型或 Π型分流管可设置为 高度和宽度可调固定式或系列可选式；所述的矩型或 π型分流管的一 个侧面或开口一侧紧贴设置在阀体总风管上设置有旁通支管接口的 一个侧面上。 The long air duct shunt rated uniform delivery and return air device of the utility model is realized as follows: Firstly, the traditional valve body connection of three ventilation valves composed of a total air duct, a straight branch pipe interface and a bypass branch pipe interface is realized. Calculate the ratio of the number of three ventilation valves provided on the long air duct and the total duct cross-sectional area of the first three ventilation valves to calculate the ratio of the average split air volume allowed to be allocated to the bypass branch pipe on each of the three ventilation valves. The cross-sectional area size is taken as the proportional cross-sectional area size of the rated split flow per stage, and then the conventional three-ventilation valve is replaced by the air-flow split three-way valve with the rated split function, and the rated split flow per stage is described. The ratio of the cross-sectional area of the air volume is used as the basis for the flow-divided cross-sectional area of the rated bypass flow control flow to the bypass pipe of each stage of the air flow split three-way valve, and also serves as the basis for reducing the cross-sectional area size of the valve bodies of each stage. The proportion of the total air intake ratio of the front-stage valve body to the cross-sectional area of the first-stage valve body is deducted from the rated split air flow rate of the flow-divided three-way valve shunt control flow of the stage to the bypass branch pipe. The cross-sectional area size is proportional to the cross-sectional area size of the airflow output from the through-pipe branch interface, which is equal to the proportional cross-sectional area of the inflow airflow of the total air duct of the latter-stage valve body, so that the flow through the long-distance air duct The wind speed and dynamic pressure at the junction of the three-way valve total air duct interface tend to be the same, and ensure that the air volume of each bypass branch pipe on the long air duct tends to be similar, achieving the purpose of uniform delivery and return air. Based on the above concept, the main body of the long air duct shunt rated uniform feeding and returning air device is composed of a long air duct and a bypass branch pipe, and the long air duct is composed of a plurality of main air ducts, a straight branch pipe joint and a bypass branch pipe interface. The valve body of the three ventilation valves is connected, and the valve body is composed of an interconnected total air duct and a straight branch pipe joint, characterized in that the three ventilation valves are provided by The improved three-ventilation valve of the constant air volume diverting function is a modified three-ventilating valve which is gradually reduced by a plurality of valve body cross-sectional area sizes according to the proportion of the cross-sectional area of the rated split air volume of each stage. Connected together, wherein: the improved three-ventilating valve body is composed of a total air duct, a straight branch pipe interface and a bypass branch pipe connection, and three ventilation valves are added on the inner surface of the total air duct of the three ventilation valves, one end and one side The cross-sectional area of the branch pipe is connected with a rectangular or 分-shaped shunt tube having a certain height and width corresponding to the proportional cross-sectional area size of each rated shunt air volume. In addition, the rectangular or Π-type shunt tube can be set to a height or width adjustable fixed type or a series of optional type; one side or open side of the rectangular or π-type shunt tube is closely disposed on the valve The body air duct is provided on one side of the bypass branch pipe connection.
工作时， 由具有一定高度和宽度、 横截面积尺寸与每级额定分流 风量的比例横截面积尺寸相符的矩形或 π型分流管作为流向旁通支 管气流的额定分流风量通道，同时由于长风管上的各级阀体均按每级 额定分流风量的比例横截面积尺寸逐级缩小下一级阀体的截面尺寸， 能使各级阀体内的气流风量的流速和动压趋于相近，因而能确保长风 管上的各级阀体上的旁通支管获得基本相近的气流风量，从而实现长 风管的均匀送、 回风。 In operation, a rectangular or π-type shunt tube with a certain height and width, cross-sectional area size and proportional cross-sectional area size of each rated shunt air volume is used as the rated split air flow path to the bypass branch pipe air flow, and at the same time due to the long wind The valve bodies at all levels on the pipe are gradually reduced in size according to the cross-sectional area of the rated split air volume of each stage, so that the flow velocity and dynamic pressure of the airflow in each valve body tend to be similar. Therefore, it can ensure that the bypass branch pipe on the valve body of each stage on the long air pipe obtains a substantially similar air flow volume, thereby achieving uniform delivery and return air of the long air pipe.
基于上述构思的本实用新型长风管分流额定式均匀送、 回风装 置，由于将长风管设置成由数个阀体按每级额定分流风量的比例横截 面积尺寸缩小、且由具有额定风量分流功能的改进型三通风阀连接构 成， 可确保长风管内气流风量有相对稳定的风速， 相对一致的动压， 从而有利于确保实现各旁通支管在额定分配流量下的均匀送、 回风，
也有利于提高建筑物环控系统或空调通风系统的工作质量，在确保各 旁通支管内均匀地获得所需的气流流量的基础上创造符合环控要求 的空间环境， 为人们的身心健康、各种仪器设备在通风条件下的良好 运行和确保正常工作寿命提供基本保障。 所以， 本实用新型的长风管 分流额定式均匀送、 回风装置有效解决了长期以来在长风管送回、风 方面所普遍存在的无法实现均匀送、 回风的一大难题， 具有装置结构 简单且科学合理， 设置方便且工作可靠等优点， 有很强的实用性和可 贵的巿场应用前景。 The utility model is characterized in that the long air pipe of the utility model is provided with a uniform air supply and return air device according to the above concept, and the long air pipe is arranged to be reduced in size and cross-sectional area by a plurality of valve bodies according to the rated split air volume of each stage, and has a rated The improved three-ventilation valve connection of the air flow diverting function ensures a relatively stable wind speed and a relatively constant dynamic pressure in the long air duct, thereby ensuring uniform delivery and return of each bypass branch under the rated distribution flow rate. wind, It is also beneficial to improve the working quality of the building environmental control system or the air conditioning ventilation system, and to create a space environment that meets the environmental control requirements on the basis of ensuring that the required airflow flow is uniformly obtained in each bypass branch pipe, for the physical and mental health of people, A variety of instruments and equipment provide a basic guarantee for good operation under ventilated conditions and to ensure a normal working life. Therefore, the long air duct shunt rated uniform feeding and returning air device of the utility model effectively solves a long-term problem that the long air duct return and the wind are generally unable to achieve uniform feeding and returning air, and has the device. The utility model has the advantages of simple structure, scientific and reasonable, convenient setting and reliable work, and has strong practicability and valuable application prospects in the market.
附图说明 DRAWINGS
图 1是本实用新型的现有技术之一的结构示意图； 1 is a schematic structural view of one of the prior art of the present invention;
图 2是本实用新型的现有技术之二的结构示意图； 2 is a schematic structural view of the second prior art of the present invention;
图 3是本实用新型的现有技术之三的结构示意图； 3 is a schematic structural view of the third prior art of the present invention;
图 4是本实用新型的现有技术之四的结构示意图； 4 is a schematic structural view of a fourth prior art of the present invention;
图 5是本实用新型的实施例的结构示意图； Figure 5 is a schematic structural view of an embodiment of the present invention;
图 6是本实用新型的实施例中改进型三通风阀的结构示意图。 图中： Figure 6 is a schematic view showing the structure of an improved three-ventilating valve in the embodiment of the present invention. In the picture:
1.总风管 2.直通支管接口 3.旁通支管接口 4.三通 1. Total air duct 2. Straight branch pipe joint 3. Bypass pipe joint interface 4. Three links
5.调节阀 6.改进型三通风阀 7. Π型分流管 5. Regulating valve 6. Improved three-venting valve 7. Splitter type shunt
具体实施方式 detailed description
下面结合附图及典型实施例对本实用新型作进一步说明。 The present invention will be further described below in conjunction with the accompanying drawings and exemplary embodiments.
在图 1、 图 2、 图 3和图 4中， 在本实用新型的现有技术中， 具
有送、 回风功能的长风管由数个由总风管 1、 直通支管接口 2和旁通 支管接口 3构成的三通风阀 4连接构成，并由总风管 1和直通支管接 口 2构成三通风阀 4的阀体，釆取或者逐级缩小三通风阀 4的阀体横 截面积尺寸， 或者逐级加大旁通支管接口 3的横截面积尺寸， 或者在 所述的旁通支管接口 3上增加设置调节阀 5、 逐级调节控制阀门开启 度的方法， 使各旁通支管的得风量趋于相近， 但在实践中发现可操作 性均较差。 In FIG. 1, FIG. 2, FIG. 3 and FIG. 4, in the prior art of the present invention, The long air duct with the function of sending and returning air is composed of a plurality of three ventilation valves 4 composed of a total air duct 1, a straight branch pipe joint 2 and a bypass branch pipe connection 3, and is composed of a total air duct 1 and a straight branch pipe joint 2 The valve body of the three ventilation valve 4, draws or steps down the cross-sectional area of the valve body of the three ventilation valve 4, or increases the cross-sectional area size of the bypass branch pipe 3 step by step, or in the bypass branch pipe The method of setting the regulating valve 5 on the interface 3 and adjusting the opening degree of the control valve step by step is adopted, so that the air volume of each bypass branch pipe tends to be similar, but in practice, the operability is poor.
在图 5和图 6中， 本实用新型的长风管分流额定式均匀送、 回风 装置主体由长风管和旁通支管构成， 长风管由数个由总风管 1、 直通 支管接口 2和旁通支管接口 3构成的三通风阀 4的阀体连接而成，阀 体由互连的总风管 1和直通支管接口 2构成，特征在于所述的三通风 阀 4由具有额定风量分流功能的改进型三通风阀 6充任，所述的长风 管由一组数个阀体横截面积尺寸按每级额定分流风量的比例横截面 积尺寸逐级缩小的改进型三通风阀 6相连构成， 其中： 所述的改进型 三通风阀 6主体由总风管 1、直通支管接口 2和旁通支管接口 3构成， 在总风管 1的内表面上设置有一端与旁通支管接口 3相连、截面积尺 寸与每级额定分流风量的比例截面积尺寸相符、具有一定高度和宽度 的矩型或 Π型分流管 7。 此外， 所述的矩型或 Π型分流管 7设置为高 度和宽度可调固定式或系列可选式，其一个侧面或开口侧紧贴设置在 阀体总风管 1上设置有旁通支管接口 3的一个侧面上。
In Fig. 5 and Fig. 6, the main body of the long draft pipe of the present invention is composed of a long air duct and a bypass branch pipe, and the long air duct is composed of a plurality of main air ducts 1 and a straight branch pipe joint. 2 and the valve body of the three ventilation valve 4 formed by the bypass branch pipe connection 3, the valve body is composed of the interconnected total air duct 1 and the straight branch pipe connection 2, characterized in that the three ventilation valve 4 has a rated air volume The improved three-ventilation valve 6 of the splitting function is filled, and the long air duct is gradually reduced by a plurality of valve body cross-sectional area sizes according to the proportion of the cross-sectional area of the rated split air volume of each stage. Connected, wherein: the modified three-ventilation valve 6 main body is composed of a total air duct 1, a straight branch pipe joint 2 and a bypass branch pipe connection 3. On the inner surface of the main air duct 1, an end is provided on the inner surface of the main duct 1 and the bypass branch pipe is provided. 3 A rectangular or 分-shaped shunt tube 7 having a height and a width corresponding to the cross-sectional area size of the rated split air volume of each stage. In addition, the rectangular or 分-type shunt tube 7 is provided as a height or width adjustable fixed type or a series of optional type, and one side or open side is closely disposed on the valve body total air duct 1 and is provided with a bypass branch pipe. On one side of the interface 3.
Claims
1. 一种长风管分流额定式均匀送、 回风装置， 由长风管和旁通支管 构成， 长风管由数个由总风管 （1)、 直通支管接口 （2)和旁通支 管接口 （3)构成的三通风阀 （4) 的阀体连接而成， 阀体由互连 的总风管 （1 )和直通支管接口 （2)构成，其特征在于： 所述的三 通风阀 （4) 由具有额定风量分流功能的改进型三通风阀 （6) 充 任，所述的长风管由一组数个阀体横截面积尺寸按每级额定分流 风量的比例横截面积尺寸逐级缩小的改进型三通风阀 （6)相连构 1. A long air duct shunt rated uniform delivery and return air device consisting of a long air duct and a bypass branch pipe. The long air duct consists of several main air ducts (1), straight branch pipe joints (2) and bypass. The valve body of the three ventilation valves (4) formed by the branch pipe interface (3) is connected, and the valve body is composed of an interconnected total air duct (1) and a straight branch pipe interface (2), characterized in that: the three ventilation The valve (4) is filled by an improved three-ventilation valve (6) having a rated airflow split function, the length of the cross-sectional area of a plurality of valve body cross-sectional area sizes per unit of rated split flow volume Improved three-ventilation valve (6) with step-by-step reduction
2. 根据权利要求 1所述的长风管分流额定式均匀送、 回风装置，其特 征在于所述的改进型三通风阀 （6) 由三通风阀 （4) 和增加设置 在三通风阀 （4) 的总风管 （1 ) 内表面上、 一端与旁通支管接口2. The long duct split rated uniform delivery and return air device according to claim 1, wherein the improved three-ventilation valve (6) is provided by three ventilation valves (4) and is added to the three ventilation valves. (4) The total duct (1) on the inner surface, one end and the bypass branch
( 3)相连、 截面积尺寸与每级额定分流风量的比例截面积尺寸相 符的矩型或 Π型分流管 （7)构成。 (3) The connected or cross-sectional area is composed of a rectangular or 分-type shunt tube (7) corresponding to the proportional cross-sectional area of each rated split flow.
3. 根据权利要求 1 所述的长风管分流额定式均匀送、 回风装置， 其 特征在于所述的矩型或 Π型分流管 （7) 的高度和宽度为可调固定 式或系列可选式。 根据权利要求 1所述的长风管分流额定式均匀送、回风装置， 其特征 在于所述的矩型或 Π型分流管 （7) 的一个侧面或开口侧面紧贴设置 在阀体总风管 1上设置有旁通支管接口 3的一个侧面上。
3. The long duct split rated uniform delivery and return air device according to claim 1, wherein the height or width of the rectangular or 分 type shunt tube (7) is adjustable fixed or series Optional. The long duct split rated uniform delivery and return air device according to claim 1, wherein one side or the open side of the rectangular or 分 type shunt tube (7) is closely attached to the total wind of the valve body. The tube 1 is provided with a side of the bypass branch pipe connection 3.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200920069254.3 | 2009-03-23 | ||
| CN200920069254U CN201373535Y (en) | 2009-03-23 | 2009-03-23 | Shunting rated uniform air feeding and returning device of long air duct |
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| WO2010108403A1 true WO2010108403A1 (en) | 2010-09-30 |
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| Application Number | Title | Priority Date | Filing Date |
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| PCT/CN2010/070824 WO2010108403A1 (en) | 2009-03-23 | 2010-03-02 | Long air pipe for distributing supplying air and returning air ratedly and uniformly |
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| CN109516011A (en) * | 2018-12-29 | 2019-03-26 | 常州车之翼动力科技有限公司 | A kind of energy storage container air-conditioning blower unit |
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| CN201373535Y (en) * | 2009-03-23 | 2009-12-30 | 上海淮亩节能环保科技有限公司 | Shunting rated uniform air feeding and returning device of long air duct |
| CN101509696B (en) * | 2009-03-23 | 2010-12-08 | 上海淮亩节能环保科技有限公司 | Long wind pipe uniform wind sending and returning method and device thereof |
| CN107270454A (en) * | 2017-08-03 | 2017-10-20 | 吴喜平 | Catch basin flow equalizing low-resistance power air diffuser |
| CN107740888A (en) * | 2017-08-16 | 2018-02-27 | 吴喜平 | Lower resistance flows long water pipe |
| CN107740896A (en) * | 2017-08-16 | 2018-02-27 | 吴喜平 | The equal overflow pipe threeway of lower resistance |
| CN112856666B (en) * | 2021-02-04 | 2021-09-14 | 山东海福德机械有限公司 | Roots blower automatically regulated air supply system |
| CN113551525B (en) * | 2021-07-01 | 2023-04-28 | 武汉科技大学 | Integrated sintering flue gas external circulation system |
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| CN201133701Y (en) * | 2007-11-14 | 2008-10-15 | 张诗琛 | Air exhausting apparatus for chemical education equipment |
| CN201373535Y (en) * | 2009-03-23 | 2009-12-30 | 上海淮亩节能环保科技有限公司 | Shunting rated uniform air feeding and returning device of long air duct |
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| JPH11325532A (en) * | 1999-04-26 | 1999-11-26 | Fuji Denki Sosetsu Co Ltd | Air-cleaning device for clean room |
| CN2676085Y (en) * | 2003-12-26 | 2005-02-02 | 东风汽车有限公司 | Air supply pipeline |
| CN201133701Y (en) * | 2007-11-14 | 2008-10-15 | 张诗琛 | Air exhausting apparatus for chemical education equipment |
| CN201373535Y (en) * | 2009-03-23 | 2009-12-30 | 上海淮亩节能环保科技有限公司 | Shunting rated uniform air feeding and returning device of long air duct |
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| CN109516011A (en) * | 2018-12-29 | 2019-03-26 | 常州车之翼动力科技有限公司 | A kind of energy storage container air-conditioning blower unit |
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