Flame arrester ventilation capacity test bench

Abstract

The utility model provides a flame arrester ventilation capacity test bench, which relates to the flame arrester test technology field and comprises a test platform, the middle position of the test platform is provided with a slot, the bottom edge included angle position of the test platform is provided with a support leg, the bottom of the support leg is arranged at the top edge included angle position of a fixed base, a driving cylinder is mounted at the top of the fixed base; a supporting plate is mounted at the top of the test platform; a flow guide pipe is slidably mounted at the top of the supporting plate, and threads are arranged at the inner end of the flow guide pipe. And a circulating pipe is mounted on the rear side of the top of the test platform. The circulating pipe is used for guiding filtered air flow, extra continuous air filtering workload is not needed, the ventilation test result of the flame arrester is accurate, and the problems that the air flow for the ventilation test can be used after being filtered, many impurities adhere to a filter screen on an air pump, the flowability of the air flow is reduced, and the service life of the air flow is prolonged are solved. And a large error exists in a test result.

Description

Technical Field

[0001] The utility model relates to the technical field of flame arrester testing, in particular to a flame arrester ventilation volume test bench. Background Art

[0002] A flame arrester is a safety device used to prevent the spread of flames of flammable gases and flammable liquid vapors. It is generally installed in a pipeline that transports flammable gases or on a ventilated tank. Therefore, it is necessary to test the ventilation volume of the flame arrester. The flame arrester blocks the flame, including the smooth flow of flammable gases in the pipeline. When the ventilation volume of the flame arrester is tested in the prior art, the airflow of the ventilation volume test usually needs to be filtered before use. Therefore, during the test, a pressure-regulating air pump is required to filter the gas all the time and then pass the airflow into the flame arrester. Long-term filtration causes the filter screen on the air pump to be attached with more debris, affecting the performance of the pressure-regulating air pump and more significantly reducing the fluidity of the airflow. The airflow flows relatively slowly, and thus there is a large error in the ventilation volume test result of the flame arrester. For this reason, the utility model improves the circulation of the filtered gas to reduce the problem of poor gas fluidity caused by filtration. Utility Model Content

[0003] The disclosed embodiment relates to a flame arrester ventilation test bench, wherein the drainage pipes at both ends of a circulation pipe are respectively installed on the drainage pipes for inputting and outputting gases, so that the filtered gas passes through one end of the circulation pipe, the drainage pipe at the input end of the flame arrester, the flame arrester body, and the drainage pipe at the output end, and then flows back to the circulation pipe, so that the filtered gas is recycled, and no additional workload of continuously filtering the gas is required, so as to ensure that the pressure regulating air pump can smoothly guide the gas, and ensure that the airflow of appropriate pressure flows through the flame arrester, so as to simulate the ventilation volume of the combustible gas through the flame arrester, so that the ventilation volume test result of the flame arrester is accurate.

[0004] According to a first aspect of the present disclosure, a flame arrester ventilation volume test bench is provided, which specifically comprises: a test platform, which is a rectangular plate structure, and a slot is provided in the middle of the test platform, and a leg is installed at the angle of the bottom edge of the test platform, and the bottom of the leg is installed at the angle of the top edge of a fixed base, wherein a driving cylinder is installed on the top of the fixed base; a support plate is installed on the top of the test platform; the top of the support plate is an arc structure, and a guide tube is slidably installed on the top of the support plate, wherein a thread is provided on the inner end of the guide tube; a circulation tube is installed on the rear side of the top of the test platform; and a pressure regulating air pump is installed in the middle of the circulation tube.

[0005] Furthermore, a movable carrier plate is installed on the output end of the driving cylinder on the top of the fixed base; positioning rods are installed on both sides of the movable carrier plate; the positioning rods are cylindrical structures, and the positioning rods are installed at the bottom of two side plates.

[0006] Furthermore, a lower driving rod is rotatably installed in the middle position of the movable carrier plate; driving handles are provided at both ends of the lower driving rod, and the lower driving rod is also installed in the middle position of the bottom of the two side plates; sealing kits of different diameters are rotatably installed on the sides of the side plates.

[0007] Furthermore, a flame arrester body is installed between the inner ends of the two sealing kits; the outer end of the sealing kit is rotatably installed on the thread of the inner end of the guide tube; and the upper driving rod is rotatably installed on the top of the two side plates.

[0008] Furthermore, an observation window is provided on the side of the guide tube; the inner side of the observation window is inlaid with tempered glass, and the outer bottom of the observation window is marked with scales; guide plates are installed on the upper and lower sides of the inner side of the guide tube; a groove is provided on the guide plate, and a spring is installed inside the groove.

[0009] Furthermore, the inside of the groove on the guide plate is connected to the two ends of the slide plate through a spring; a collecting cover is installed in the middle position of the slide plate; a pointer is installed on the side of the collecting cover; the outer end of the pointer faces the scale at the bottom outside the observation window.

[0010] Furthermore, drainage pipes are installed on both ends of the circulation pipe; the drainage pipe is a cylindrical structure, and the drainage pipe is slidably installed on the outside of the drainage pipe; a plurality of evenly arranged drainage holes are opened on the outside of the drainage pipe; the drainage holes are located on the inside of the drainage pipe.

[0011] The utility model provides a flame arrester ventilation test bench, which has the following beneficial effects:

[0012] When the utility model is in use, the filtered air flow is guided by using a circulation pipe. When the flame arrester is subjected to an air flow test, the drainage pipes at both ends of the circulation pipe are respectively installed on the drainage pipes for inputting and outputting gases, so that the filtered gas passes through one end of the circulation pipe, the drainage pipe at the input end of the flame arrester, the flame arrester body, and the drainage pipe at the output end and then flows back to the circulation pipe, so that the filtered gas is recycled, and no additional workload of continuously filtering the gas is required, so that the pressure regulating air pump is ensured to guide the gas smoothly, and the air flow of appropriate pressure is ensured to flow through the flame arrester, so as to simulate the air flow of the combustible gas through the flame arrester, so that the test result of the air flow of the flame arrester is accurate.

[0013] In addition, the ventilation volume of the flame arrester can be intuitively displayed by using the collecting hood to drive the position of the pointer indicating the scale. When the flame arrester is tested for ventilation volume, collecting hoods are installed on the inner sides of the guide tubes at the input and output ends of the flame arrester body respectively. The inner sides of the collecting hoods face the direction of air flow. The airflow pushes the collecting hoods to move on the inner side of the guide tubes. The ventilation volume of the flame arrester is determined by the sizes of the scales indicated by the two pointers according to the scales driven by the collecting hood to indicate the scale at the outer bottom of the observation window. If the difference between the indicated scales is large, the ventilation volume of the flame arrester is small. In any case, if the difference between the two scales is small, the ventilation volume is large. The ventilation volume of the flame arrester can be displayed more intuitively, and the structure is simple and the operation is convenient. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] In order to more clearly illustrate the technical solution of the embodiment of the utility model, the drawings of the embodiment will be briefly introduced below.

[0015] The drawings described below only relate to some embodiments of the present invention, but are not intended to limit the present invention.

[0016] In the attached picture:

[0017] Figure 1 A schematic diagram showing the overall structure of the present application;

[0018] Figure 2 A schematic cross-sectional view of the test platform of the present application is shown;

[0019] Figure 3 A schematic diagram of the three-dimensional structure of the side panel of the present application is shown;

[0020] Figure 4 A schematic diagram of the three-dimensional structure of the flow guide tube of the present application is shown;

[0021] Figure 5 A schematic diagram of the cross-sectional structure of the flow guide tube of the present application is shown;

[0022] Figure 6 A schematic diagram of the cross-sectional structure of the drainage tube of the present application is shown;

[0023] Reference numerals list

[0024] 1. Test platform; 101. Fixed base; 102. Movable carrier plate; 103. Positioning rod; 104. Lower drive rod; 105. Side plate; 106. Sealing kit; 107. Upper drive rod;

[0025] 2. Support plate; 201. Guide tube; 202. Observation window; 203. Guide plate; 204. Slide plate; 205. Collection cover; 206. Pointer;

[0026] 3. Circulation pipe; 301. Pressure regulating air pump; 302. Drainage pipe; 303. Diversion hole;

[0027] 4. Flame arrester body. DETAILED DESCRIPTION

[0028] In order to make the purpose, technical solution and advantages of the embodiment of the utility model clearer, the technical solution of the embodiment of the utility model will be clearly and completely described below in conjunction with the drawings of the embodiment of the utility model. Obviously, the described embodiment is a part of the embodiment of the utility model, not all of the embodiments. Based on the described embodiment of 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.

[0029] Please refer to Figures 1 to 6 : Embodiment 1

[0030] The utility model proposes a flame arrester ventilation test bench, comprising: a test platform 1, the test platform 1 is a rectangular plate structure, and a slot is provided in the middle of the test platform 1, and a leg is installed at the position of the angle of the bottom edge of the test platform 1, and the bottom of the leg is installed at the position of the angle of the top edge of the fixed base 101, wherein a driving cylinder is installed at the top of the fixed base 101; a movable carrier plate 102 is installed on the output end of the driving cylinder at the top of the fixed base 101; positioning rods 103 are installed on both sides of the movable carrier plate 102; the positioning rods 103 are cylindrical structures, and ... The rod 103 is installed at the bottom of the two side plates 105; the lower driving rod 104 is rotatably installed in the middle position of the movable carrier plate 102; driving handles are provided at both ends of the lower driving rod 104, and the lower driving rod 104 is also installed in the middle position of the bottom of the two side plates 105; sealing kits 106 of different diameters are rotatably installed on the side of the side plate 105; the flame arrester body 4 is installed between the inner ends of the two sealing kits 106; the outer end of the sealing kit 106 is rotatably installed on the thread of the inner end of the guide tube 201; the upper driving rod 107 is rotatably installed on the top of the two side plates 105.

[0031] In the embodiment of the present disclosure, when the flame arrester is subjected to a ventilation test, the size of the sealing kit 106 installed on the side of the side plate 105 is adjusted according to the specifications of the flame arrester, the driving cylinder on the top of the fixed base 101 drives the movable carrier plate 102 to adjust the height, the positioning rod 103 and the lower driving rod 104 on the movable carrier plate 102 drive the side plate 105 to move in the slot on the top of the test platform 1, the side plate 105 drives the sealing kit 106 on the side to be in a suitable position, and the outer end of the sealing kit 106 of suitable size is rotated and installed on the guide On the thread at the inner end of the tube 201, the flame arrester body 4 is placed between the inner ends of the two sealing kits 106, and the upper driving rod 107 and the lower driving rod 104 are rotated at the top and bottom of the side plate 105 respectively. The upper driving rod 107 and the lower driving rod 104 drive the side plate 105 to approach, and the side plate 105 drives the sealing kit 106 to be installed on both ends of the flame arrester body 4. Flame arresters of different specifications can be fixed without the need for flanges. The structure is simple and the disassembly is relatively convenient, thereby improving the detection efficiency of the ventilation volume of multiple flame arresters.

[0032] Embodiment 2, on the basis of embodiment 1, a support plate 2 is installed on the top of the test platform 1; the top of the support plate 2 is an arc-shaped structure, and a guide tube 201 is slidably installed on the top of the support plate 2, wherein the inner end of the guide tube 201 is provided with a thread; an observation window 202 is provided on the side of the guide tube 201; the inner side of the observation window 202 is inlaid with tempered glass, and the outer bottom of the observation window 202 is marked with a scale; guide plates 203 are installed on the upper and lower sides of the inner side of the guide tube 201; a groove is provided on the guide plate 203, and a spring is installed inside the groove; the inside of the groove on the guide plate 203 is connected to the two ends of the slide plate 204 through the spring; a collection cover 205 is installed in the middle position of the slide plate 204; a pointer 206 is installed on the side of the collection cover 205; the outer end of the pointer 206 faces the scale at the outer bottom of the observation window 202. When the flame arrester is subjected to a ventilation test, the sealing kit 106 When moving, the guide tube 201 is driven to slide on the top of the support plate 2. The guide tube 201 on the right side of the flame arrester body 4 serves as the gas input end, and the guide tube 201 on the left side serves as the gas output end. When the airflow flows in the guide tube 201, the airflow enters the flame arrester body 4 through the guide tube 201 on the right side and then flows into the guide tube 201 on the left side. Then the gas pushes the collection cover 205 to drive the slide plate 204 to move along the groove on the guide plate 203. The collection cover 205 drives the pointer 206 to point to the scale at the bottom outside the observation window 202. At the same time, the movement of the collection cover 205 is observed through the observation window 202. The position of the scale indicated by the pointer 206 determines the ventilation amount. If the difference between the scales of the two is smaller, the ventilation amount is larger. On the contrary, if the difference between the scales of the two is larger, the ventilation amount is smaller. The ventilation test result is more intuitive, and the ventilation amount of different flame arresters can be quickly judged.

[0033] Embodiment 3, on the basis of embodiment 1, a circulation pipe 3 is installed on the top rear side of the test platform 1; a pressure regulating air pump 301 is installed in the middle position of the circulation pipe 3; a drainage pipe 302 is installed on both ends of the circulation pipe 3; the drainage pipe 302 is a cylindrical structure, and the drainage pipe 302 is slidably installed on the outside of the drainage pipe 201; a plurality of uniformly arranged drainage holes 303 are opened on the outside of the drainage pipe 201; the drainage hole 303 is located on the inner side of the drainage pipe 302, and when the flame arrester is subjected to the ventilation test, the two drainage holes 303 are arranged on the inner side of the drainage pipe 302. When the flow tube 201 moves, it moves on the inner side of the drainage tube 302. The gas generated by the pressure-regulating air pump 301 enters the drainage tube 302 on the right side through the right end of the circulation tube 3 and then enters the drainage tube 201 through the guide hole 303. After the test, the gas in the left guide tube 201 enters the drainage tube 302 on the left side through the guide hole 303 and then enters the circulation tube 3. The gas is recycled and does not need to be filtered frequently, which reduces the power consumption of the pressure-regulating air pump 301 and ensures that the gas flows at an appropriate pressure.

[0034] The working principle of this embodiment is as follows: when in use, the size of the sealing kit 106 is adjusted according to the specifications of the flame arrester, the driving cylinder on the top of the fixed base 101 drives the movable carrier plate 102 to move, the positioning rod 103 and the lower driving rod 104 on the movable carrier plate 102 drive the side plate 105 to move in the slot on the top of the test platform 1, and the side plate 105 drives the sealing kit 106 on the side to be in a suitable position, and the outer end of the sealing kit 106 of suitable size is rotatably installed on the thread at the inner end of the guide tube 201, and the flame arrester body 4 is placed between the inner ends of the two sealing kits 106, and the upper driving rod 107 and the lower driving rod 104 are rotated respectively to drive the side plate 105 to install the sealing kit 106 on both ends of the flame arrester body 4, the guide tube 201 on the right side of the flame arrester body 4 is used as the gas input end, and the guide tube 201 on the left side is used as the gas output end, and the pressure regulating gas The gas generated by the pump 301 enters the right drainage pipe 302 through the right end of the circulation pipe 3 and then enters the drainage pipe 201 through the diversion hole 303. The airflow enters the flame arrester body 4 through the right drainage pipe 201 and then flows into the left drainage pipe 201. After the test, the gas in the left drainage pipe 201 enters the left drainage pipe 302 through the diversion hole 303 and then enters the circulation pipe 3 for recycling. The gas in the drainage pipe 201 pushes the collection cover 205 to drive the slide plate 204 to move along the groove on the guide plate 203. The collection cover 205 drives the pointer 206 to point to the scale at the bottom outside the observation window 202. The ventilation volume is determined by the position of the scale indicated by the pointer 206. If the difference between the scales is smaller, the ventilation volume is larger, and if the difference between the scales is larger, the ventilation volume is smaller, so that the ventilation volume of different flame arresters can be quickly judged.

[0035] In this article, there are a few points to note:

[0036] 1. The drawings of the embodiments of the present disclosure only involve structures related to the embodiments of the present disclosure, and other structures may refer to general designs.

[0037] 2. In the absence of conflict, the embodiments of the present disclosure and the features therein may be combined with each other to obtain new embodiments.

[0038] The above are only specific embodiments of the present disclosure, but the protection scope of the present disclosure is not limited thereto. Any technician familiar with the technical field can easily think of changes or substitutions within the technical scope disclosed in the present disclosure, which should be included in the protection scope of the present disclosure. Therefore, the protection scope of the present disclosure should be based on the protection scope of the claims.

Claims

1. A flame arrester ventilation test bench, comprising: A test platform (1), wherein a slot is provided in the middle of the test platform (1), and a support leg is installed at the angle of the bottom edge of the test platform (1), and the bottom of the support leg is installed at the angle of the top edge of a fixed base (101), wherein a drive cylinder is installed on the top of the fixed base (101); characterized in that a support plate (2) is installed on the top of the test platform (1); a guide tube (201) is slidably installed on the top of the support plate (2), wherein a thread is provided on the inner end of the guide tube (201); a circulation tube (3) is installed on the rear side of the top of the test platform (1); and a pressure regulating air pump (301) is installed in the middle of the circulation tube (3).

2. A flame arrester ventilation test bench according to claim 1, characterized in that: A movable carrier plate (102) is installed on the output end of the driving cylinder at the top of the fixed base (101); positioning rods (103) are installed on both sides of the movable carrier plate (102); and the positioning rods (103) are installed at the bottom of two side plates (105).

3. A flame arrester ventilation test bench according to claim 2, characterized in that: A lower driving rod (104) is rotatably mounted in the middle of the movable carrier plate (102); driving handles are provided at both ends of the lower driving rod (104), and the lower driving rod (104) is also mounted in the middle of the bottoms of two side plates (105); sealing kits (106) of different diameters are rotatably mounted on the sides of the side plates (105).

4. A flame arrester ventilation test bench according to claim 3, characterized in that: A flame arrester body (4) is installed between the inner ends of the two sealing kits (106); the outer end of the sealing kit (106) is rotatably installed on the thread of the inner end of the guide tube (201); and upper drive rods (107) are rotatably installed on the tops of the two side plates (105).

5. A flame arrester ventilation test bench according to claim 4, characterized in that: An observation window (202) is provided on the side of the flow guide tube (201); the inner side of the observation window (202) is inlaid with tempered glass, and the outer bottom of the observation window (202) is marked with scales; guide plates (203) are installed on the upper and lower sides of the inner side of the flow guide tube (201); a groove is provided on the guide plate (203), and a spring is installed inside the groove.

6. A flame arrester ventilation test bench according to claim 5, characterized in that: The inside of the groove on the guide plate (203) is connected to the two ends of the slide plate (204) via a spring; a collection cover (205) is installed in the middle of the slide plate (204); a pointer (206) is installed on the side of the collection cover (205); the outer end of the pointer (206) faces the scale at the outer bottom of the observation window (202).

7. A flame arrester ventilation test bench according to claim 6, characterized in that: Drainage pipes (302) are installed on both ends of the circulation pipe (3); the drainage pipe (302) is slidably installed on the outside of the drainage pipe (201); a plurality of evenly arranged drainage holes (303) are provided on the outside of the drainage pipe (201); and the drainage holes (303) are located on the inside of the drainage pipe (302).

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