TW202331207A - Dust concentration meter calibration system - Google Patents

Abstract

A dust concentration meter calibration system having a power device, a dust generating device, an intake rectifying device and a pipe device is provided. The dust generating device includes a connective valve, a dust feeding unit connected to the connective valve and a weighing unit carried the connective valve. The connective valve has a first passage, a second passage and a third passage that connected to each other. The second passage is connected to the power device, the intake rectifying device is connected to the third passage and the pipe device. The dust feeding unit includes a first feeding funnel and one or a plurality of second feeding funnels tandem. The first feeding funnel and the second feeding funnels are tapered, and the first feeding funnel is connected to the first passage.

Description

Dust concentration meter calibration system

The invention is related to a smoke exhaust pipe measurement technology, especially a dust concentration meter calibration system.

Press, the so-called dust concentration refers to the dust content in the unit volume of air. There are environmental protection regulations and other requirements for factory buildings or other dust concentration discharge specifications, especially for discharge to the external environment. In order to measure whether the data meet the standards, certain calibration procedures and related measuring equipment must be passed to establish the measurement uncertainty and dose accuracy of the plant equipment installed on the exhaust duct.

In view of this, the present invention has been researched with great concentration and combined with the application of theories, and finally proposes a rationally designed and effective invention.

The main purpose of the present invention is to provide a dust concentration meter calibration system, which adopts a staged feeding hopper, and generates a pressure difference based on Bernoulli's Principle, so that the fed dust can be homogenized, In this way, the calibrated dust concentration meter can obtain more accurate data in the operation of the exhaust pipe.

Another object of the present invention is to provide a dust concentration meter calibration system, which adopts a suspended elastic coupling method to avoid the gravity and vibration generated by the system or the whole device from affecting the measurement of the dust emission amount. error, thereby improving the accuracy of the measurement.

In order to achieve the above-mentioned purpose, the present invention provides a dust concentration meter calibration system, including a power unit, a dust generating device, an air intake rectifying device, and a pipeline device; the power unit has a filter and a connected control Valve, the dust generating device includes a communication valve, a dust feeding unit connected to the communication valve, and a weighing unit for carrying the communication valve, and the communication valve has a first passage and a second passage connected to each other. The passage communicates with a third passage, the second passage communicates with the power unit, the air intake rectifying device communicates with the third passage, and the pipeline device communicates with the air intake rectifying device; wherein, the dust feeding unit further includes a first feeding funnel and One or more second feeding funnels are connected in series, and the insides of the first and second feeding funnels are tapered, and the first feeding funnel is connected to the first passage.

In order to enable your examiners to further understand the characteristics and technical content of the present invention, please refer to the following detailed description and drawings related to the present invention, but the attached drawings are only for reference and description, and are not used to limit the present invention .

Please refer to Fig. 1, Fig. 2 and Fig. 3, which are respectively the three-dimensional appearance schematic diagram of the calibration system of the dust concentration meter of the present invention, the schematic diagram of the front section, and the schematic diagram of the dust generating device. The present invention provides a dust concentration meter calibration system 1, including a power device 2, a dust generating device 3, an air intake rectifying device 4, and a pipeline device 5; wherein:

The power device 2 and the dust generating device 3 can be arranged on a platform 10 . As shown in Figure 2, the power unit 2 has a filter 20 connected with a control valve 21, the filter 20 can be a pressure regulating filter, used to push the outside air into the control valve 21 to drive the Dust and other substances (figure omitted) provided by the above-mentioned dust generating device 3 flow in the pipeline device 5; After being connected, the pipeline 11 made of soft materials such as rubber and silica gel is connected to the above-mentioned dust generating device 3, and the pipeline 11 has two interfaces 110, 111, one of which is connected to the control valve 21, Another interface 111 is connected to the dust generating device 3 . In addition, as shown in FIG. 4, in other embodiments, the control valve 21 may also include a needle valve 210, a pressure gauge 211, and an electromagnetic switch valve 212 connected in series in sequence, and the needle valve 210 and The filter 20 communicates with one of the ports 110 of the pipeline 11 through an electromagnetic switch valve 212 .

Please refer to Fig. 2 and Fig. 3 together, this dust generating device 3 is comprised of a communication valve 30, a dust feeding unit 31, and a weighing unit 32 that carries the communication valve 30, the system in the communication valve 30 It has a first passage 300, a second passage 301 and a third passage 302 communicating with each other, wherein the first passage 300 communicates with the dust feeding unit 31, and the second passage 301 communicates with another interface 111 of the above-mentioned pipeline , and the third passage 302 is further connected with the air intake rectifying device 4 of the dust concentration meter calibration system 1 . The present invention mainly proposes the dust feeding unit 31, which includes a first feeding funnel 310 connected in series with at least one or a plurality of second feeding funnels 311, and no matter whether the first feeding funnel 310 or the second feeding funnel Inside the material funnel 311, all are tapered (such as cone-shaped) from the direction of entry; wherein, the first feeding funnel 310 has a material outlet 310a located at the tapered part, and a material outlet 310a away from the outlet. The material port 310a is used as a closed enlarged end surface 310b, and the material outlet 310a is in communication with the first passage 300 of the communication valve 30, and a series interface 310c is provided on the expanded end surface 310b for the second feeding funnel 311 The connecting port 311a is connected and communicated, and the last second feeding funnel 311 has a feeding port 311b away from its connecting port 311a, so that material materials such as dust can be inserted into the dust generating device 3 through the feeding port 311b, and The amount of dust can be measured by a weighing unit 32 arranged below the communication valve 30, and the weighing unit 32 can be an electronic weighing device.

Based on the above, the present invention can make the dust enter the dust inlet based on Bernoulli's Principle after the first feeding funnel 310 and the second feeding funnel 311 of the dust feeding unit 31 are connected in series. After the material unit 31, the pressure difference that can be generated in it is used to cause the incoming dust to pass through the above-mentioned air intake rectifying device 4 and enter the pipeline device 5 more evenly. As shown in Figures 1 to 3, the third passage 302 of the communication valve 30 of the above-mentioned dust generating device 3 is connected to a feed pipe 12, which is the same as the above-mentioned pipeline 11, and can be rubber, silicone, etc. Made of soft material so that the dust generating device 3 can be elastically coupled between the power device 2 and the air intake rectifying device 4, so as to avoid the vibration generated when the power device 2 operates and the vibration generated when the internal air pressure flows, etc. It affects the dust feeding unit 31 and even affects the stable sensing of the weighing unit 32 . In addition, as shown in FIG. 3 , the dust feeding unit 31 can also be provided with a plurality of suction holes 310d on the enlarged end surface 310b of the first feeding funnel 310 to increase the flow rate of dust in the dust feeding unit 31 .

Please refer to Fig. 1 and shown in Fig. 3 again, above-mentioned feed pipe 12 is penetrated into air inlet rectifying device 4, can enter in the pipeline device 5 for uniform dust by this air inlet rectifying device. The air intake rectifying device 4 is gradually expanding according to the air intake direction, and one end is provided with a through hole 40 for the feed pipe 12 to penetrate, and the other end has a pipe opening 41 to connect the above-mentioned The duct device 5 , and the air intake straightening device 4 may be provided with a plurality of air intake holes 410 . Promptly as shown in Figure 1, this pipeline device 5 system comprises a pipeline 50 with sufficient length and a discharge pipe 51 that is communicated with the end of this pipeline 50, and can be provided with in this discharge pipe 51 exhaust units such as blower ( (not shown) to discharge the dust from the discharge port 510 of the discharge pipe 51 to the outside. In the present invention, after the dust entering the pipeline 50 is made more uniform through the above-mentioned dust feeding unit 31, a measuring section 500 can be set at an appropriate position in the pipeline 50, and a measurement section 500 is provided for monitoring the dust concentration. The first setting position 501 for the configuration of measuring elements such as the meter, anemometer, thermometer, and hygrometer (not shown in the figure), and a second setting position 502 and a third setting position 503 are set in sequence on the side of the measurement section 500, so as to The standard parts for sampling and the parts to be tested (not shown) are set separately for calibration and measurement.

Based on the above, as shown in Figure 5, in other embodiments, the feed pipe 12 can also be a steel pipe, and can have a trumpet-shaped exit hole 120, and the exit hole 120 is connected with the air intake rectification A distance S is formed between the devices 4 without contact, and the distance S may be 1 cm. In addition, a vortex generator 42 is provided in the air intake rectifying device 4, and the vortex generator 42 can be a blunt body or a cone-shaped design, and has a substantially equal dimension d in the radial direction and the axial direction. d is approximately half of the caliber D of the pipeline 50, and is fixedly arranged in the air intake straightening device 4 along the air intake direction from narrow to wide; Turbulent diffusion to balance the pressure difference between the upstream and downstream to cause the turbulent flow of the downstream length L to rotate at a high speed to cause the diffusion effect. And if in actual operation, when the development of the aforementioned downstream length L is still insufficient, it can also be further used to make a conical surface with multi-hole properties (not shown) on the conical surface of the vortex generator 42 to improve the aforementioned Turbulence effect.

Therefore, the calibration system of the dust concentration meter of the present invention can be obtained by the above-mentioned structural composition.

To sum up, this invention can clearly achieve the expected purpose of use, and solve the lack of conventional knowledge, and because it is extremely novel and progressive, it fully meets the requirements for patent application for inventions. Please file an application in accordance with the Patent Law. Please check carefully and Granted the patent of this case to protect the inventor's rights.

However, the above description is only a preferred feasible embodiment of the present invention, and does not limit the patent scope of the present invention. Therefore, all equivalent techniques, means and other changes made by using the description and drawings of the present invention are all the same. Included within the scope of the present invention, it is hereby stated.

<The present invention> 1: Dust concentration meter calibration system 10: Platform 11: pipeline 110: interface 111: interface 12: Feed pipe 120: exit hole 2: power unit 20: filter 21: Control valve 210: needle valve 211: pressure gauge 212: Solenoid switch valve 3: Dust generating device 30: Connecting valve 300: the first channel 301: Second access 302: The third channel 31: Dust feeding unit 310: first feed funnel 310a: Outlet 310b: Expanded end face 310c: serial interface 310d: suction hole 311: Second feed funnel 311a: Connecting port 311b: feed port 32: weighing unit 4: Air intake rectification device 40: Through hole 41: Pipe mouth 410: air intake hole 42:Vortex generator 5: Pipeline installation 50: pipeline 500: Measurement section 501: The first setting position 502: Second setting position 503: The third setting position 51: discharge pipe 510: outlet

Fig. 1 is a three-dimensional appearance schematic diagram of the dust concentration meter calibration system of the present invention.

Fig. 2 is a schematic diagram of the front section of the dust concentration meter calibration system of the present invention.

Fig. 3 is a schematic diagram of the dust generating device of the present invention.

Fig. 4 is a schematic diagram of the front section of another embodiment of the dust concentration meter calibration system of the present invention.

Fig. 5 is a schematic diagram of the front section of another embodiment of the dust concentration meter calibration system of the present invention.

1: Dust concentration meter calibration system

10: Platform

11: pipeline

110: interface

111: interface

12: Feed pipe

2: power unit

20: filter

21: Control valve

3: Dust generating device

30: Connecting valve

31: Dust feeding unit

310: first feed funnel

310a: Outlet

310b: Expanded end face

310d: suction hole

311: Second feed funnel

311b: feed port

32: weighing unit

4: Air intake rectification device

40: Through hole

41: Pipe mouth

410: air intake hole

Claims (10)

A dust concentration meter calibration system, comprising: a power unit having a filter communicated with a control valve; A dust generating device, comprising a communication valve, a dust feeding unit connected to the communication valve, and a weighing unit for carrying the communication valve, and the communication valve has a first passage communicating with each other, a second passage and a third passage, the second passage being in communication with the power unit; an air intake straightening device communicated with the third passage; and A pipeline device communicates with the air intake rectifying device; Wherein, the dust feeding unit further comprises a first feeding funnel connected in series with one or a plurality of second feeding funnels, and the insides of the first and second feeding funnels are both tapered, and are formed by the first feeding funnel. The feed funnel is connected to the first passage. The dust concentration meter calibration system as described in Claim 1, wherein the filter of the power unit is a pressure regulating filter, and the control valve is an electronically controlled proportional valve, or includes a needle valve, a pressure gauge and An electromagnetic switch valve is sequentially connected in series to form. The dust concentration meter calibration system as described in Claim 1, wherein the communication system between the power device and the second passage of the dust generating device is an elastic coupling, and the connection between the air intake rectifying device and the third passage of the dust generating device The connectivity of is also elastic coupling. The dust concentration meter calibration system as described in Claim 3, wherein the elastic coupling refers to a pipeline made of soft material as communication and connection. The dust concentration meter calibration system as described in Claim 1, wherein the first feeding funnel has a discharge port and an enlarged end surface away from the discharge port, and the discharge port is connected to the first connecting valve A channel connected. The dust concentration meter calibration system as described in claim item 5, wherein a serial port is provided on the expanded end surface of the first feeding funnel, and the second feeding funnel has a connecting port and is connected to the serial port . The dust concentration meter calibration system as described in Claim 6, wherein the second feeding funnel has a feeding port away from its connecting port. The dust concentration meter calibration system as described in Claim 1, wherein the weighing unit is an electronic weighing device. The dust concentration meter calibration system as described in Claim 1, wherein the air intake rectifying device is provided with a plurality of air intake holes, and the duct device includes a duct and a discharge pipe connected to the end of the duct. The dust concentration meter calibration system as described in Claim 1, wherein a vortex generator is arranged in the air intake rectifying device.

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