Gas path control assembly for flue flow velocity detection

Abstract

The utility model relates to the technical field of flue flow velocity detection gas circuit control, and discloses a gas circuit control assembly for flue flow velocity detection, which comprises a third solenoid valve normally-closed two-way, a first solenoid valve two-position three-port is fixedly connected outside the third solenoid valve normally-closed two-way, and a second solenoid valve two-position three-port is fixedly connected outside the third solenoid valve normally-closed two-way. A second solenoid valve two-position three-port is fixedly connected to the outer portion of the third solenoid valve normally-closed two-way, a conveying assembly is arranged in the third solenoid valve normally-closed two-way, and a quick-inserting straight-through connector is slidably connected to the right end of the third solenoid valve normally-closed two-way. And the exterior of the two-position three-port of the first electromagnetic valve is fixedly connected with one of the quick-insertion elbows. According to the utility model, the cost of a product can be effectively reduced in the use process of the device, a customer can bear lower economic cost, the overall size of the product is effectively reduced, the installation and maintenance of a worker are facilitated, the flow velocity value of the flue below 5m / s can be effectively and accurately measured, and the later maintenance cost is effectively reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of flue flow velocity detection gas path control, in particular to a gas path control component for flue flow velocity detection. Background Art

[0002] The gas path control component for flue flow rate detection is usually a device that includes sensors, valves, controllers and other components. They are used to measure the gas flow rate in the flue, and adjust the flue flow rate by controlling the valves and other components in the gas path according to the measurement results. The working principle of these components is usually as follows: the sensor measures the flow rate of the gas in the flue, and then transmits these data to the controller. The controller adjusts the gas flow rate of the flue by controlling the valves or other actuators in the gas path according to the preset parameters and logic to achieve the desired goal. In this way, real-time monitoring and control of the flue flow rate can be achieved, thereby ensuring the safety and efficiency of the industrial production process, and the specific components and equipment may be different, but their functions are all to play a role in flue flow rate detection and to achieve flow rate regulation through gas path control.

[0003] During the use of some of the existing gas path control components for flue flow velocity detection, there are problems with the existing temperature and pressure flow. At present, some of them use differential pressure transmitters to measure the differential pressure and then calculate the flue flow velocity through the program on the industrial computer or the data acquisition instrument. On the one hand, this method is expensive, and in this way, customers need to bear greater economic costs; on the other hand, the differential pressure transmitter is large in size, so the whole machine is large in size. Since the installation site is on the flue and the position is high, it brings great trouble to the on-site installation. Therefore, in view of the above problems, a gas path control component for flue flow velocity detection is proposed to solve the above problems. Utility Model Content

[0004] In order to make up for the above shortcomings, the utility model provides an air path control component for flue flow velocity detection, aiming to improve the problems of high cost of some air path control components and large size of differential pressure transmitters in the prior art.

[0005] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0006] A gas path control component for flue flow rate detection, comprising a normally closed two-way solenoid valve No. 3, the outside of which is fixedly connected to a two-position three-port solenoid valve No. 1, the outside of which is fixedly connected to a two-position three-port solenoid valve No. 2, the inside of which is fixedly connected to a two-position three-port solenoid valve No. 3, a conveying component is provided inside the normally closed two-way solenoid valve No. 3, the right end of which is slidably connected to a quick-insert straight-through connector, the outside of which is fixedly connected to a two-position three-port solenoid valve No. 1, and the outside of the other quick-insert elbow is fixedly connected to the inside of the two-position three-port solenoid valve No. 2;

[0007] As a further description of the above technical solution:

[0008] The conveying component includes a No. 1 threaded hole, which is opened inside the normally closed two-way of the No. 3 solenoid valve, and a No. 2 threaded hole is opened inside the normally closed two-way of the No. 3 solenoid valve.

[0009] The utility model has the following beneficial effects:

[0010] In the utility model, with the coordinated use of structures such as the normally closed two-way No. 3 solenoid valve, the two-position three-port No. 1 solenoid valve, the two-position three-port No. 2 solenoid valve, the quick-plug elbow, and the quick-plug straight-through connector, the device can effectively reduce the cost of the product during use, so that the customer bears a lower economic cost, and effectively reduce the overall size of the product, making it convenient for the staff to install and maintain, and effectively and accurately measure the flue flow velocity value below 5m / s. The product structure is compact and adopts a modular design, which effectively reduces the later maintenance cost. BRIEF DESCRIPTION OF THE DRAWINGS

[0011] Figure 1 This is a gas circuit diagram of the measurement state of a gas circuit control component for flue flow velocity detection proposed by the utility model;

[0012] Figure 2 This is a gas path diagram of the back-blowing state of a gas path control component for flue flow velocity detection proposed by the utility model;

[0013] Figure 3 The utility model discloses a gas circuit diagram of the zero calibration state of a gas circuit control component for flue flow velocity detection.

[0014] Legend:

[0015] 1. Solenoid valve No. 3, normally closed, two-way; 2. Solenoid valve No. 1, two-position, three-port; 3. Solenoid valve No. 2, two-position, three-port; 4. Quick-insert elbow; 5. Quick-insert straight-through connector; 6. No. 1 threaded hole; 7. No. 2 threaded hole. DETAILED DESCRIPTION

[0016] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0017] Reference Figure 1 - Figure 3The utility model provides an embodiment: a gas path control component for flue flow rate detection, including a No. 3 solenoid valve normally closed two-way 1, the No. 3 solenoid valve normally closed two-way 1 is fixedly connected to a No. 1 solenoid valve two-position three-port 2 outside, the No. 3 solenoid valve normally closed two-way 1 is fixedly connected to a No. 2 solenoid valve two-position three-port 3 outside, and a conveying component is opened inside the No. 3 solenoid valve normally closed two-way 1;

[0018] In different operating conditions, such as Figure 1 As shown in the measurement state gas circuit diagram, at this time, the No. 3 solenoid valve is normally closed two-way 1, and the No. 3 solenoid valve is normally closed two-way 1. This is one of the key components for controlling the flow of the gas circuit. In the normally closed state, it prevents the gas from passing through, and will only open when activated to allow the gas to flow. The No. 1 solenoid valve, two-position three-port 2, and the No. 2 solenoid valve, two-position three-port 3 are not actuated. The No. 1 solenoid valve, two-position three-port 2, and the No. 2 solenoid valve, two-position three-port 3 are valves that control the flow direction and flow of the gas. Their states are determined by the control signal of the solenoid valve, thereby adjusting the flow rate of the gas in the flue. When the No. 3 solenoid valve, two-way 1, and the No. 1 solenoid valve, two-position three-port 2 are in the state position shown by the arrow, the equipment gas circuit is as follows Figure 1 As shown, the flue gas in the flue will enter the pressure sensor through the No. 1 threaded hole 6 and the No. 2 threaded hole 7 in the gas path part.

[0019] like Figure 2 As shown in the back-blowing state diagram, at this time, the normally closed two-way 1 of the No. 3 solenoid valve and the two-position three-port 2 of the No. 1 solenoid valve are in the state indicated by the arrow, and the two-position three-port 3 of the No. 2 solenoid valve is not in action, and the flue gas in the flue will not be able to enter the pressure sensor. However, the back-blowing gas enters the gas path parts through the quick-insert straight-through connector 5, and enters the flue through the normally closed two-way 1 of the No. 3 solenoid valve and the two-position three-port 2 of the No. 1 solenoid valve, thereby achieving the purpose of cleaning the pitot tube.

[0020] The conveying assembly includes a No. 1 threaded hole 6, which is opened inside the normally closed two-way 1 of the No. 3 solenoid valve, and a No. 2 threaded hole 7 is opened inside the normally closed two-way 1 of the No. 3 solenoid valve. The right end of the normally closed two-way 1 of the No. 3 solenoid valve is slidably connected with a quick-insert straight-through connector 5, and the outside of the two-position three-port 2 of the No. 1 solenoid valve is fixedly connected with one of the quick-insert elbows 4, and the outside of the other quick-insert elbow 4 is fixedly connected to the inside of the two-position three-port 3 of the No. 2 solenoid valve.

[0021] like Figure 3As shown in the zero calibration state diagram, at this time, the normally closed two-way 1 of the No. 3 solenoid valve, the two-position three-port 2 of the No. 1 solenoid valve and the two-position three-port 3 of the No. 2 solenoid valve are all in action. The normally closed two-way 1 of the No. 3 solenoid valve and the two-position three-port 2 of the No. 1 solenoid valve are in the state indicated by the arrow. The back-blowing pneumatic passes through the quick-insert straight-through connector 5 and enters the gas path parts through the normally closed two-way 1 of the No. 3 solenoid valve and the two-position three-port 2 of the No. 1 solenoid valve into the flue. The quick-insert elbow 4 and the quick-insert straight-through connector 5 are used to connect different gas path parts to build a complete gas path system. The quick-insert straight-through connector 5 and the quick-insert elbow 4 allow quick and convenient connection and disconnection. When the two-position three-port 3 of the No. 2 solenoid valve is opened, the No. 1 threaded hole 6 and the No. 2 threaded hole 7 are connected to each other, and the pressure between the two is the same, thereby achieving the purpose of zero calibration of the pressure sensor.

[0022] Working principle: The main purpose of the gas path parts assembly is to control the operating status of the flow meter during the process of monitoring the flue flow rate.

[0023] like Figure 1 As shown in the measurement status gas circuit diagram, at this time, the No. 3 solenoid valve is normally closed two-way 1, the No. 1 solenoid valve is two-position three-port 2, and the No. 2 solenoid valve is two-position three-port 3. When the No. 3 solenoid valve is normally closed two-way 1 and the No. 1 solenoid valve is two-position three-port 2 in the state shown by the arrow, the equipment gas circuit is as follows Figure 1 As shown, the flue gas in the flue will enter the pressure sensor through the No. 1 threaded hole 6 and the No. 2 threaded hole 7 in the gas path part.

[0024] like Figure 2 As shown in the back-blowing state diagram, at this time, the normally closed two-way 1 of the No. 3 solenoid valve and the two-position three-port 2 of the No. 1 solenoid valve are in the state indicated by the arrow, and the two-position three-port 3 of the No. 2 solenoid valve is not in action, and the flue gas in the flue will not be able to enter the pressure sensor. However, the back-blowing gas enters the gas path parts through the quick-insert straight-through connector 5, and enters the flue through the normally closed two-way 1 of the No. 3 solenoid valve and the two-position three-port 2 of the No. 1 solenoid valve, thereby achieving the purpose of cleaning the pitot tube.

[0025] like Figure 3 As shown in the zero calibration state diagram, at this time, the normally closed two-way 1 of the No. 3 solenoid valve, the two-position three-port 2 of the No. 1 solenoid valve and the two-position three-port 3 of the No. 2 solenoid valve are all in action, and the normally closed two-way 1 of the No. 3 solenoid valve and the two-position three-port 2 of the No. 1 solenoid valve are in the state indicated by the arrow, and the reverse pneumatic over-fast plug-in straight-through connector 5 enters the gas path parts and enters the flue through the normally closed two-way 1 of the No. 3 solenoid valve and the two-position three-port 2 of the No. 1 solenoid valve. When the two-position three-port 3 of the No. 2 solenoid valve is opened, the No. 1 threaded hole 6 and the No. 2 threaded hole 7 are connected to each other, and the pressure between the two is the same, thereby achieving the purpose of zero calibration of the pressure sensor.

[0026] Finally, it should be noted that the above is only a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art can still modify the technical solutions described in the aforementioned embodiments or make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A gas path control assembly for flue flow velocity detection, comprising a No. 3 solenoid valve normally closed two-way (1), characterized in that: The outside of the normally closed two-way valve (1) of the No. 3 solenoid valve is fixedly connected to the two-position three-port (2) of the No. 1 solenoid valve, the outside of the normally closed two-way valve (1) of the No. 3 solenoid valve is fixedly connected to the two-position three-port (3) of the No. 2 solenoid valve, the inside of the normally closed two-way valve (1) of the No. 3 solenoid valve is provided with a conveying component, the right end of the normally closed two-way valve (1) of the No. 3 solenoid valve is slidably connected to a quick-insert straight-through connector (5), the outside of the two-position three-port (2) of the No. 1 solenoid valve is fixedly connected to one of the quick-insert elbows (4), and the outside of the other quick-insert elbow (4) is fixedly connected to the inside of the two-position three-port (3) of the No. 2 solenoid valve.

2. The gas path control assembly for flue flow velocity detection according to claim 1, characterized in that: The conveying assembly comprises a No. 1 threaded hole (6), the No. 1 threaded hole (6) is arranged inside the normally closed two-way valve (1) of the No. 3 solenoid valve, and a No. 2 threaded hole (7) is arranged inside the normally closed two-way valve (1) of the No. 3 solenoid valve.

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