CN202579258U

CN202579258U - Air blower regulating device used for tail gas recycling

Info

Publication number: CN202579258U
Application number: CN 201220186379
Authority: CN
Inventors: 杨旭东; 胡永平
Original assignee: XUSHIHUA SCIENCE-TECHNOLOGY DEVELOPMENT Co Ltd WUHAN
Current assignee: XUSHIHUA SCIENCE-TECHNOLOGY DEVELOPMENT Co Ltd WUHAN
Priority date: 2012-04-27
Filing date: 2012-04-27
Publication date: 2012-12-05
Anticipated expiration: 2022-04-27

Abstract

The utility model provides an air blower regulating device used for tail gas recycling. The device is characterized in that a micro negative pressure sensor is arranged inside a pipeline between a tail gas header pipe and an air blower; and the micro negative pressure sensor and the air blower are electrically connected with a frequency converter through a control device. With the adoption of the micro negative pressure sensor arranged in the air blower regulating device provided by the utility model, the change of the pressure can be monitored; a pressure signal is subsequently transmitted to the control device so as to calculate the tail gas quantity of the tail gas header pipe; the value of the tail gas quantity is compared with a set value and calculated so as to obtain a rotation speed simulation quantity of the air blower; and a simulation quantity signal is transmitted to the frequency converter so as to control the rotation speed of the air blower, and thus the tail gas quantity in air conveyed by the air blower is controlled, and a resource is saved.

Description

A kind of tail gas recycle is used the blower controlling device

Technical field

The utility model belongs to the tail gas recycle technical field, is meant that specifically a kind of tail gas recycle uses the blower controlling device.

Background technique

Can produce a large amount of harmful tail gas in process of production in industries such as coating, printings needs to recycle.Generally be after the tail gas that each bar production line produces is led to engine manifold, adsorb in the tail gas absorbing recovery device and resolve recovery through being transported to after the blower air blast.But because each bar production line work or state intermittently; Can't keep invariable through the tail gas amount of engine manifold; Therefore to be delivered to the tail gas amount that comprises in the wind in the tail gas absorbing recovery device also uncontrollable for blower, and blower speed is excessive will to be influenced the absorption of tail gas and resolve callback course, and the waste resource; The too small timely discharge that then can influence tail gas of blower speed, thus the quality of production line influenced.

Summary of the invention

The purpose of the utility model is to provide a kind of tail gas recycle to use the blower controlling device according to above-mentioned deficiency, utilizes this controlling device, can control the rotating speed of blower, thus the tail gas amount that comprises in the wind that the control blower is carried, and can save resource.

The technological scheme of the utility model is following: a kind of tail gas recycle is used the blower controlling device; It is characterized in that: be provided with little B/P EGR Back Pressure Transducer EGR in the pipeline between engine manifold and the blower, be electrically connected through control gear and frequency variator successively between this little B/P EGR Back Pressure Transducer EGR and the blower.

Little B/P EGR Back Pressure Transducer EGR that the utility model blower controlling device comprises can monitor the variation of pressure; Then pressure signal is delivered to the tail gas amount that control gear calculates engine manifold, and compares and computing, obtain the rotating speed analog amount of blower with setting value; This analog signals is delivered to frequency variator; Rotating speed to blower is controlled, thereby the tail gas amount that comprises in the wind that the control blower is carried is saved resource.

Description of drawings

Fig. 1 is the utility model blower controlling device schematic representation;

1. production line, 2. blower, 3. engine manifold, 4. little B/P EGR Back Pressure Transducer EGR, 5. control gear, 6. frequency variator.

Embodiment

Further specify the utility model below in conjunction with accompanying drawing:

As shown in Figure 1, the said blower controlling device of the utility model is provided with little B/P EGR Back Pressure Transducer EGR 4 in the pipeline between engine manifold 3 and blower 2, and this little B/P EGR Back Pressure Transducer EGR 4 is electrically connected through control gear 5 and frequency variator 6 with blower 2 successively.

During work, tail gas is arranged behind engine manifold 3 little B/P EGR Back Pressure Transducer EGR 4 monitoring pressures at each production line 1; Pressure signal is sent in the control gear 5; Process calculates the tail gas amount in the engine manifold 3, and compares and computing with setting value, obtains the rotating speed analog amount of blower 2; Again this analog signals is delivered in the frequency variator 6, thus the rotating speed of control blower 2.Because what little B/P EGR Back Pressure Transducer EGR 4 monitored is real-time pressure; Therefore also can control the rotating speed of blower 2 in real time; Thereby the tail gas of control tail gas absorption reclaiming system input is kept on average, can not influence tail gas absorption reclaiming system, also can not influence the carrying out of production line.

Claims

1. a tail gas recycle is used the blower controlling device, it is characterized in that: be provided with little B/P EGR Back Pressure Transducer EGR in the pipeline between engine manifold and the blower, be electrically connected through control gear and frequency variator successively between this little B/P EGR Back Pressure Transducer EGR and the blower.