Exhaustion test system

Abstract

This utility model provides an exhaust testing system, comprising: a main pipeline; an exhaust fan installed at the opening end of the main pipeline; a support platform, a support frame, and a cabinet-type exhaust hood arranged sequentially from left to right below the main pipeline along a horizontal direction, the cabinet-type exhaust hood being connected to the main pipeline via branch pipes; a sealed gas collection hood, a first movable exhaust hood, a second movable exhaust hood, and a side-suction exhaust hood arranged sequentially from left to right on the support platform along a horizontal direction; a support plate provided on the support frame, the support plate having multiple vertical through holes, the upward-suction exhaust hood positioned directly above the support plate, and the downward-suction exhaust hood positioned below the support plate; the upward-suction exhaust hood being connected to the main pipeline via branch pipes, and the downward-suction exhaust hood being connected to the main pipeline via branch pipes; a smoke generator for releasing smoke; and an anemometer for measuring the smoke velocity. This exhaust testing system enables the testing of the suction effect of different exhaust hoods in a spatial environment.

Description

Technical Field

[0001] This utility model relates to the field of exhaust testing technology, and in particular to an exhaust testing system. Background Technology

[0002] In industrial production processes, it is often necessary to discharge pollutants such as dust or fumes. In existing exhaust systems, exhaust hoods are connected to exhaust fans via pipes. The exhaust fans provide negative pressure, and the exhaust hoods are aimed at the locations that need to be sucked in. After passing through the exhaust hoods, the pollutants go through the pipes and are then discharged outwards.

[0003] Different exhaust hoods have different suction effects. How to test the suction effect of different exhaust hoods in a spatial environment is a problem that needs to be solved by those skilled in the art. Utility Model Content

[0004] In view of the shortcomings of the prior art described above, the technical problem solved by this utility model is an exhaust test system for testing the suction effect of different exhaust hoods in a spatial environment.

[0005] To achieve the above and other related objectives, this utility model provides an exhaust ventilation testing system, comprising:

[0006] The main pipeline is fixedly installed, with its left end being a closed end and its right end being an open end, and its central axis being parallel to the horizontal plane.

[0007] An exhaust fan is installed at the open end of the main pipeline;

[0008] Along the horizontal direction, from left to right below the main pipeline, a support platform, a support frame, and a cabinet-type exhaust hood are arranged in sequence. The cabinet-type exhaust hood is connected to the main pipeline through a branch pipe, and an electromagnetic valve is provided on the branch pipe connected to the cabinet-type exhaust hood.

[0009] Along the horizontal direction, from left to right on the support platform, a sealed gas collection hood, a first movable exhaust hood, a second movable exhaust hood, and a side-suction exhaust hood are placed sequentially. Each of these hoods is connected to the main pipeline via branch pipes. Each branch pipe connected to the sealed gas collection hood is equipped with an electromagnetic valve, and each branch pipe connected to the side-suction exhaust hood is equipped with a manual valve. Each branch pipe connected to the first movable exhaust hood is equipped with a manual valve.

[0010] The support frame is equipped with a support plate, which has multiple vertical through holes. An upward-suction exhaust hood is positioned directly above the support plate, and a downward-suction exhaust hood is positioned directly below the support plate. The upward-suction exhaust hood is connected to the main pipeline via a branch pipe, and the downward-suction exhaust hood is also connected to the main pipeline via a branch pipe. A solenoid valve is installed on the branch pipe connected to the upward-suction exhaust hood, and a solenoid valve is installed on the branch pipe connected to the downward-suction exhaust hood.

[0011] A smoke generator is used to release smoke.

[0012] An anemometer is used to measure the velocity of smoke.

[0013] Preferably, the support platform is provided with a mounting frame, and the first movable exhaust hood is connected to the mounting frame by a retractable rope; the first movable exhaust hood is made of plastic material.

[0014] Preferably, the support platform is provided with a shelf, and the second movable exhaust hood is placed on the shelf. The second movable exhaust hood is made of stainless steel.

[0015] Preferably, the outer side of the sealing gas collection hood is provided with two hood openings, and the hood openings are provided with sealing parts, and the sealing parts are provided with slits.

[0016] Preferably, the cabinet-type exhaust hood is provided with two doors.

[0017] Preferably, the side-suction exhaust hood includes a side-suction hood body, the side-suction hood body is provided with a side-suction hood opening, the side-suction hood opening is provided with a side-suction hood suction plate, the side-suction hood suction plate is inclined relative to the horizontal plane, and the side-suction hood suction plate is provided with suction holes.

[0018] Preferably, the inner diameter of the main pipeline gradually increases from the closed end to the open end.

[0019] As described above, the exhaust testing system of this utility model has the following beneficial effects:

[0020] In the exhaust testing system of this utility model, when it is necessary to test the cabinet exhaust hood, the smoke generator and anemometer are placed at the opening of the cabinet exhaust hood. The smoke generator is started and releases smoke. The exhaust fan is started and the solenoid valve is opened. The exhaust fan draws air from the cabinet exhaust hood through the main pipeline and branch pipeline. The anemometer measures the flow rate of the smoke discharged into the outlet of the cabinet exhaust hood.

[0021] When testing the first movable exhaust hood, place the smoke generator and anemometer at the opening of the first movable exhaust hood. The smoke generator is activated and releases smoke. The exhaust fan is activated, and the manual valve on the branch pipe connected to the first movable exhaust hood is opened. The exhaust fan draws air from the first movable exhaust hood through the main pipe and branch pipe. The anemometer measures the flow rate of the smoke discharged into the first movable exhaust hood.

[0022] When testing the second movable exhaust hood, place the smoke generator and anemometer at the opening of the second movable exhaust hood. The smoke generator is activated and releases smoke. The exhaust fan is activated, and the manual valve on the branch pipe connected to the second movable exhaust hood is opened. The exhaust fan draws air from the second movable exhaust hood through the main pipe and branch pipe. The anemometer measures the flow rate of the smoke discharged into the second movable exhaust hood.

[0023] When testing a side-suction exhaust hood, place the smoke generator and anemometer at the side-suction opening of the hood. The smoke generator starts and releases smoke. The exhaust fan starts, and the solenoid valve on the branch pipe connected to the side-suction exhaust hood opens. The exhaust fan draws air from the cabinet exhaust hood through the main pipe and branch pipes. The anemometer measures the flow rate of the smoke entering the side-suction exhaust hood.

[0024] When testing the top-suction exhaust hood, place the smoke generator and anemometer at the opening of the top-suction exhaust hood. The smoke generator starts and releases smoke. The exhaust fan starts, and the solenoid valve on the branch pipe connected to the top-suction exhaust hood opens. The exhaust fan draws air from the top-suction exhaust hood through the main pipe and branch pipes. The anemometer measures the flow rate of the smoke discharged into the top-suction exhaust hood.

[0025] When testing a downdraft exhaust hood, place the smoke generator and anemometer at the opening of the downdraft exhaust hood. The smoke generator starts and releases smoke. The exhaust fan starts, and the solenoid valve on the branch pipe connected to the downdraft exhaust hood opens. The exhaust fan draws air from the downdraft exhaust hood through the main pipe and branch pipes. The anemometer measures the flow rate of the smoke discharged into the downdraft exhaust hood.

[0026] When testing the sealed gas collection hood, place the smoke generator and anemometer into the sealed gas collection hood. The smoke generator is started and releases smoke. The exhaust fan is started and the solenoid valve on the branch pipe connected to the sealed gas collection hood is opened. The exhaust fan draws air from the sealed gas collection hood through the main pipe and branch pipe. The anemometer measures the flow rate of the smoke discharged from the outlet of the sealed gas collection hood.

[0027] Cabinet-type exhaust hood, sealed air collection hood, first movable exhaust hood, second movable exhaust hood, side-suction exhaust hood, top-suction exhaust hood and bottom-suction exhaust hood are hoods with different structures. The staff can adjust the solenoid valve or manual valve according to the data obtained from the anemometer to adjust the wind speed of the hood with different structures.

[0028] This exhaust testing system, through a simple and compact setup, integrates a sealed air collection hood, a first movable exhaust hood, a second movable exhaust hood, a side-suction exhaust hood, a cabinet-type exhaust hood, an upward-suction exhaust hood, and a downward-suction exhaust hood into a single spatial environment. This exhaust testing system enables the testing of the suction effect of different exhaust hoods within a single spatial environment. Attached Figure Description

[0029] Figure 1 This is a schematic diagram of the front structure of the exhaust testing system in this embodiment.

[0030] Figure 2 yes Figure 1 A schematic diagram of the structure at point A.

[0031] Figure 3 yes Figure 1 A schematic diagram of the structure at point B.

[0032] Figure 4 This is a side view of the exhaust hood of the exhaust test system in this embodiment.

[0033] Figure 5 This is a top view of the support plate of the exhaust test system in this embodiment.

[0034] The diagram is labeled as follows: 100-Main pipe, 101-Closed end, 102-Open end, 200-Exhaust fan, 300-Support platform, 310-Mounting bracket, 320-Shelf, 330-Retractable rope, 400-Support frame, 510-Cabinet-type exhaust hood, 511-Hood door, 520-Sealed air collection hood, 521-Hood opening, 522-Sealing part, 523-Slotted part. 530-First movable exhaust hood, 540-Second movable exhaust hood, 550-Side suction exhaust hood, 551-Side suction hood body, 552-Side suction hood opening, 553-Side suction hood suction plate, 554-Suction hole, 560-Upward suction exhaust hood, 570-Downward suction exhaust hood, 600-Branch pipe, 710-Solenoid valve, 720-Manual valve, 800-Support plate, 810-Vertical through hole. Detailed Implementation

[0035] The following specific embodiments illustrate the implementation of this utility model. Those skilled in the art can easily understand other advantages and effects of this utility model from the content disclosed in this specification.

[0036] Please refer to the accompanying drawings. It should be understood that the structures, proportions, sizes, etc., depicted in the accompanying drawings are merely for illustrative purposes to aid those skilled in the art and are not intended to limit the scope of this invention. Therefore, they have no substantial technical significance. Any modifications to the structure, changes in proportions, or adjustments to size, without affecting the effectiveness and purpose of this invention, should still fall within the scope of the technical content disclosed in this invention. Furthermore, the terms such as "upper," "lower," "left," "right," "middle," and "one" used in this specification are merely for clarity and are not intended to limit the scope of this invention. Changes or adjustments to their relative relationships, without substantially altering the technical content, should also be considered within the scope of this invention.

[0037] like Figures 1 to 5 As shown, the exhaust testing system of this embodiment includes:

[0038] Main pipeline 100, with its left end being a closed end 101 and its right end being an open end 102, and its central axis being parallel to the horizontal plane.

[0039] An exhaust fan 200 is installed at the opening end 102 of the main pipeline 100;

[0040] Along the horizontal direction, from left to right below the main pipeline 100, there are a support platform 300, a support frame 400 and a cabinet-type exhaust hood 510. The cabinet-type exhaust hood 510 is connected to the main pipeline 100 through a branch pipe 600. The branch pipe 600 connected to the cabinet-type exhaust hood 510 is equipped with a solenoid valve 710.

[0041] Along the horizontal direction, a sealed gas collection hood 520, a first movable exhaust hood 530, a second movable exhaust hood 540, and a side-suction exhaust hood 550 are placed sequentially from left to right on the support platform 300. The sealed gas collection hood 520, the first movable exhaust hood 530, the second movable exhaust hood 540, and the side-suction exhaust hood 550 are all connected to the main pipeline 100 through branch pipes 600. A solenoid valve 710 is installed on the branch pipe 600 connected to the sealed gas collection hood 520, and a solenoid valve 710 is installed on the branch pipe 600 connected to the side-suction exhaust hood 550. A manual valve 720 is installed on the branch pipe 600 connected to the first movable exhaust hood 530, and a manual valve 720 is installed on the branch pipe 600 connected to the second movable exhaust hood 540.

[0042] A support plate 800 is provided on the support frame 400. The support plate 800 has multiple vertical through holes 810. An upward-suction exhaust hood 560 is located directly above the support plate 800, and a downward-suction exhaust hood 570 is located below the support plate 800. The upward-suction exhaust hood 560 is connected to the main pipeline 100 through a branch pipe 600, and the downward-suction exhaust hood 570 is connected to the main pipeline 100 through a branch pipe 600. A solenoid valve 710 is provided on the branch pipe 600 connected to the upward-suction exhaust hood 560 and the branch pipe 600 connected to the downward-suction exhaust hood 570.

[0043] A smoke generator is used to release smoke; an anemometer is used to measure the flow rate of the smoke.

[0044] In the exhaust testing system of this utility model, when it is necessary to test the cabinet exhaust hood 510, the smoke generator and the anemometer 910 are placed at the opening of the cabinet exhaust hood 510. The smoke generator is started and releases smoke. The exhaust fan 200 is started and the solenoid valve 710 is opened. The exhaust fan 200 draws air from the cabinet exhaust hood 510 through the main pipe 100 and the branch pipe 600. The anemometer 910 measures the flow rate of the smoke discharged into the outlet of the cabinet exhaust hood 510.

[0045] When the first movable exhaust hood 530 needs to be tested, the smoke generator and anemometer 910 are placed at the opening of the first movable exhaust hood 530. The smoke generator is started and releases smoke. The exhaust fan 200 is started and the manual valve 720 on the branch pipe 600 connected to the first movable exhaust hood 530 is opened. The exhaust fan 200 draws air from the first movable exhaust hood 530 through the main pipe 100 and the branch pipe 600. The anemometer 910 measures the flow rate of the smoke discharged into the first movable exhaust hood 530.

[0046] When the second movable exhaust hood 540 needs to be tested, the smoke generator and anemometer 910 are placed at the opening of the second movable exhaust hood 540. The smoke generator is started and releases smoke. The exhaust fan 200 is started and the manual valve 720 on the branch pipe 600 connected to the second movable exhaust hood 540 is opened. The exhaust fan 200 draws air from the second movable exhaust hood 540 through the main pipe 100 and the branch pipe 600. The anemometer 910 measures the flow rate of the smoke discharged into the second movable exhaust hood 540.

[0047] When testing the side-suction exhaust hood 550, place the smoke generator and anemometer 910 at the side-suction opening 552 of the side-suction exhaust hood 550. The smoke generator starts and releases smoke. The exhaust fan 200 starts and the solenoid valve 710 on the branch pipe 600 connected to the side-suction exhaust hood 550 opens. The exhaust fan 200 draws air from the cabinet exhaust hood 510 through the main pipe 100 and the branch pipe 600. The anemometer 910 measures the flow rate of the smoke discharged into the side-suction exhaust hood 550.

[0048] When testing the top-suction exhaust hood 560, place the smoke generator and anemometer 910 at the opening of the top-suction exhaust hood 560. The smoke generator starts and releases smoke. The exhaust fan 200 starts and the solenoid valve 710 on the branch pipe 600 connected to the top-suction exhaust hood 560 opens. The exhaust fan 200 draws air from the top-suction exhaust hood 560 through the main pipe 100 and the branch pipe 600. The anemometer 910 measures the flow rate of the smoke discharged into the top-suction exhaust hood 560.

[0049] When testing the downdraft exhaust hood 570, place the smoke generator and anemometer 910 at the opening of the downdraft exhaust hood 570. The smoke generator starts and releases smoke. The exhaust fan 200 starts and the solenoid valve 710 on the branch pipe 600 connected to the downdraft exhaust hood 570 opens. The exhaust fan 200 draws air from the downdraft exhaust hood 570 through the main pipe 100 and the branch pipe 600. The anemometer 910 measures the flow rate of the smoke discharged into the downdraft exhaust hood 570.

[0050] When the sealed gas collection hood 520 needs to be tested, the smoke generator and anemometer 910 are placed in the sealed gas collection hood 520. The smoke generator is started and releases smoke. The exhaust fan 200 is started and the solenoid valve 710 on the branch pipe 600 connected to the sealed gas collection hood 520 is opened. The exhaust fan 200 draws air from the sealed gas collection hood 520 through the main pipe 100 and the branch pipe 600. The anemometer 910 measures the flow rate of the smoke discharged from the outlet of the sealed gas collection hood 520.

[0051] Cabinet-type exhaust hood 510, sealed air collection hood 520, first movable exhaust hood 530, second movable exhaust hood 540, side-suction exhaust hood 550, top-suction exhaust hood 560 and bottom-suction exhaust hood 570 are hoods with different structures. The staff can adjust the solenoid valve or manual valve according to the data obtained from the anemometer to adjust the wind speed of the hood with different structures.

[0052] This exhaust testing system, through a simple and compact setup, places a sealed air collection hood 520, a first movable exhaust hood 530, a second movable exhaust hood 540, a side-suction exhaust hood 550, a cabinet-type exhaust hood 510, an upward-suction exhaust hood 560, and a downward-suction exhaust hood 570 in a single spatial environment. This exhaust testing system enables the testing of the suction effect of different exhaust hoods in a single spatial environment.

[0053] A mounting frame 310 is provided on the support platform 300. The first movable exhaust hood 530 is connected to the mounting frame 310 via a retractable rope 330. The first movable exhaust hood 530 is made of plastic. Since the first movable exhaust hood 530 is used for collecting cryogenic gases, it is made of plastic and is lightweight. Connecting the first movable exhaust hood 530 to the mounting frame 310 via the retractable rope 330 fixes its position when not in use. When the first movable exhaust hood 530 needs to be used, the operator can pull it to the desired position using the retractable rope 330.

[0054] A shelf 320 is provided on the support platform 300, and a second movable exhaust hood 540 is placed on the shelf 320. The second movable exhaust hood 540 is made of stainless steel. Since the second movable exhaust hood 540 is used for collecting high-temperature gases, it is made of stainless steel. The second movable exhaust hood 540 is relatively heavy; placing it on the shelf 320 ensures that its position is fixed when not in use. When the second movable exhaust hood 540 needs to be used, it can be removed from the shelf 320.

[0055] The outer surface of the sealed gas collection hood 520 has two openings 521, each containing a sealing part 522 with a slit 523. The slit 523 facilitates the insertion of the smoke generator and anemometer 910 into the sealed gas collection hood 520 and also serves to seal the hood. In this embodiment, the slit 523 has a straight, linear structure.

[0056] The cabinet-type exhaust hood 510 is equipped with two hood doors 511. The hood doors 511 are designed to make it easy for staff to open the cabinet-type exhaust hood 510.

[0057] The side-suction exhaust hood 550 includes a side-suction hood body 551, a side-suction hood opening 552 on the side-suction hood body 551, a side-suction hood suction plate 553 on the side-suction hood opening 552, the side-suction hood suction plate 553 being inclined relative to the horizontal plane, and a suction hole 554 on the side-suction hood suction plate 553. The side-suction exhaust hood 550 has a simple structure and is easy to manufacture.

[0058] The inner diameter of the main pipeline 100 gradually increases from the closed end 101 to the open end 102. On the main pipeline 100, the inner diameter is smaller the further away from the exhaust fan 200, which can increase the exhaust air velocity at the location away from the exhaust fan 200.

[0059] The above embodiments are merely illustrative of the principles and effects of this utility model and are not intended to limit the scope of this utility model. Any person skilled in the art can modify or alter the above embodiments without departing from the spirit and scope of this utility model. Therefore, all equivalent modifications or alterations made by those skilled in the art without departing from the spirit and technical concept disclosed in this utility model should still be covered by the claims of this utility model.

Claims

1. An exhaust ventilation testing system, characterized in that, include: The main pipeline (100) is fixedly installed. The left end of the main pipeline (100) is a closed end (101), and the right end of the main pipeline (100) is an open end (102). The central axis of the main pipeline (100) is parallel to the horizontal plane. An exhaust fan (200) is installed at the open end (102) of the main pipeline (100); Along the horizontal direction, below the main pipeline (100), from left to right, there are a support platform (300), a support frame (400), and a cabinet-type exhaust hood (510). The cabinet-type exhaust hood (510) is connected to the main pipeline (100) through a branch pipe (600). The branch pipe (600) connected to the cabinet-type exhaust hood (510) is equipped with a solenoid valve (710). Along the horizontal direction, from left to right, a sealed gas collection hood (520), a first movable exhaust hood (530), a second movable exhaust hood (540), and a side-suction exhaust hood (550) are placed on the support platform (300); the sealed gas collection hood (520), the first movable exhaust hood (530), the second movable exhaust hood (540), and the side-suction exhaust hood (550) are all connected to the main pipeline (100) through branch pipes (600). A solenoid valve (710) is provided on the branch pipe (600) connected to the sealed gas collection hood (520), and a solenoid valve (710) is provided on the branch pipe (600) connected to the side-suction exhaust hood (550); a manual valve (720) is provided on the branch pipe (600) connected to the first movable exhaust hood (530), and a manual valve (720) is provided on the branch pipe (600) connected to the second movable exhaust hood (540); The support frame (400) is provided with a support plate (800), which has multiple vertical through holes (810). An upward-suction exhaust hood (560) is located directly above the support plate (800), and a downward-suction exhaust hood (570) is located directly below the support plate (800). The upward-suction exhaust hood (560) is connected to the main pipeline (100) through a branch pipe (600), and the downward-suction exhaust hood (570) is connected to the main pipeline (100) through a branch pipe (600). A solenoid valve (710) is provided on the branch pipe (600) connected to the upward-suction exhaust hood (560) and the branch pipe (600) connected to the downward-suction exhaust hood (570). A smoke generator is used to release smoke. An anemometer is used to measure the velocity of smoke.

2. The exhaust testing system according to claim 1, characterized in that: The support platform (300) is provided with a mounting frame (310), and the first movable exhaust hood (530) is connected to the mounting frame (310) by a retractable rope (330); the first movable exhaust hood (530) is made of plastic material.

3. The exhaust testing system according to claim 1, characterized in that: The support platform (300) is provided with a shelf (320), and the second movable exhaust hood (540) is placed on the shelf (320). The second movable exhaust hood (540) is made of stainless steel.

4. The exhaust testing system according to claim 1, characterized in that: The outer side of the sealed gas collection hood (520) is provided with two hood openings (521), and a sealing part (522) is provided in the hood openings (521), and a slit part (523) is provided on the sealing part (522).

5. The exhaust testing system according to claim 1, characterized in that: The cabinet-type exhaust hood (510) is equipped with two hood doors (511).

6. The exhaust testing system according to claim 1, characterized in that: The side-suction exhaust hood (550) includes a side-suction hood body (551), a side-suction hood opening (552) on the side-suction hood body (551), a side-suction hood suction plate (553) on the side-suction hood opening (552), the side-suction hood suction plate (553) being inclined relative to the horizontal plane, and a suction hole (554) on the side-suction hood suction plate (553).

7. The exhaust testing system according to claim 1, characterized in that: The inner diameter of the main pipeline (100) gradually increases from the closed end (101) to the open end (102).

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