CN204142475U - A kind of flame arrester for petroleum tank pressure loss and throughput pick-up unit - Google Patents

Abstract

The utility model provides a pressure loss and air flow detection device for a flame arrester of a petroleum storage tank, which includes a fan, a transition pipe, a thermometer, an air outlet test tube, an air outlet rectifier grid, a flame arrester, a bracket, a gas flow meter, and a differential pressure transmitter. Pa, differential pressure transmitter Pb, inlet test tube, inlet rectifier grid, current collector, one end of the fan is connected with a transition tube, the transition tube is connected to the outlet test tube, and the outlet test tube is equipped with a thermometer and a pressure measurement hole A and pressure measuring hole B, pressure measuring holes A and B are provided with short conduits E and short conduits F, the gas outlet test tube is connected to one end of the flame arrester through the gas outlet rectification grid, and the other end of the flame arrester is connected to the inlet test tube, the inlet gas The test tube is provided with a pressure measuring hole C and a pressure measuring hole D, and the pressure measuring holes C and D are provided with a short conduit G and a short conduit H. There is a gas flow meter on the flow device. The device is simple in structure, convenient in operation, low in cost, short in measurement time and high in work efficiency.

Description

A pressure loss and air flow detection device for a flame arrester in a petroleum storage tank

technical field

The utility model relates to a detection device for a flame arrester of a petroleum storage tank, in particular to a detection device for pressure loss and ventilation of a flame arrester of a petroleum storage tank. the

Background technique

As a kind of flammable material, oil storage and storage are very important. In order to prevent fire hazards and other safety hazards, it is particularly important to meet the quality standards of the flame arrester, especially the detection of the pressure loss and ventilation of the flame arrester requires accurate measurement data. However, the detection devices for pressure loss and ventilation of flame arresters currently on the market have complex structures, cumbersome operations, high cost, slow measurement speed, long measurement time, and low work efficiency. the

Contents of the invention

Aiming at the deficiencies in the prior art, the purpose of this utility model is to provide a pressure loss and air flow detection device for a flame arrester of a petroleum storage tank. The device is not only simple in structure, easy to operate, low in cost, fast in detection speed, and Short time and high work efficiency. the

In order to achieve the above object, the utility model is realized through the following technical solutions:

A pressure loss and air flow detection device for a flame arrester in a petroleum storage tank, characterized in that it includes a fan, a transition pipe, a thermometer, an air outlet test tube, an air outlet rectifier grid, a flame arrester, a bracket, a differential pressure transmitter, and an air inlet test Pipe, intake rectifying grid, current collector, one end of the fan is connected with a transition pipe, and the transition pipe is connected to the outlet test pipe, and the outlet test pipe is provided with a thermometer, a pressure measurement hole A and a pressure measurement hole B, The pressure measuring holes A and B are provided with a short conduit E and a short conduit F, the gas outlet test tube is connected to one end of the flame arrester through the gas outlet rectification grid, and the other end of the flame arrester is connected to the inlet test tube, the inlet gas A pressure measuring hole C and a pressure measuring hole D are provided on the air test tube, and a short conduit G and a short conduit H are provided on the pressure measuring holes C and D, and the other end of the air intake test tube is connected to the The current collector is provided with a gas flow meter. the

Further, casters and a supporting plate are installed on the bracket, the height of the supporting plate can be adjusted, and the bracket is located under the outlet test tube and the intake test tube. the

Further, both ends of the flame arrester are respectively connected to the outlet test pipe and the inlet test pipe, and the connection method is a flange connection, and is equipped with a C-shaped clamp. the

Further, the pressure measuring holes A, B, C, and D are evenly distributed on the circumference of the same section of the outlet test tube and the intake test tube. the

Further, the diameters of the pressure measuring holes A, B, C, and D are in the range of 2-3mm, and the surroundings of the holes are smooth and free of burrs. the

Further, the short conduit is welded to the outer wall of the pressure measuring hole of the test tube, and the inner diameter of the short conduit is twice the diameter of the pressure measuring hole. The arithmetic mean of the static pressure of the four pressure measuring holes is the average static pressure on the section. the

Further, the inner diameters of the outlet test tube and the inlet test tube are equal to the inner diameter of the flame arrester, and the inner wall surfaces thereof are flat and smooth. the

Further, the thickness of the partitions of the outlet and intake rectification grids is in the range of 0.012-0.015mm, and the distance between the partitions of the outlet rectification shed is in the range of 0.08-0.75mm. the

Further, the range of the differential pressure transmitter is ±3000Pa, and the accuracy is 0.5%. the

Further, the current collector is a conical current collector, and the surface roughness value is not greater than 3.2 μm. the

In summary, the utility model has the advantages of: the fan and the bracket described in the device, the fan can be fixed as the wind source, and the measuring tube to be tested can be put down on the bracket. The bracket is equipped with casters for easy movement; the height of the supporting plate on the bracket can be adjusted at will, and various test tubes can be installed. The structure is simple, the operation is convenient, and the manpower is greatly saved. The required cost is low and the labor intensity is reduced. , Improve the working environment, greatly increase the measurement speed, reduce the measurement time, improve work efficiency, and measure the pressure loss and ventilation of the flame arrester accurately, with high measurement accuracy and reliable measurement data. the

Description of drawings

Fig. 1 is the structural representation of the utility model. the

In the figure, 1. Fan, 2. Transition pipe, 3. Thermometer, 4. Outlet test tube, 5. Outlet rectification grid, 6. Flame arrester, 7. Intake test tube, 8. Intake rectification grid, 9. Gas Flow meter, 10, collector, 11, bracket, 12, short conduit E, 13, short conduit F, 14, short conduit G, 15, short conduit H, 16, differential pressure transmitter Pa, 17, differential Pressure transmitter Pb. the

Detailed ways

The utility model will be further described below in conjunction with the accompanying drawings and specific embodiments:

As shown in Figure 1, a pressure loss and air flow detection device for a flame arrester of a petroleum storage tank is characterized in that it includes a fan 1, a transition pipe 2, a thermometer 3, an air outlet test tube 4, an air outlet rectifier grid 5, a flame arrester 6, Bracket 11, gas flowmeter 9, differential pressure transmitter Pa16, differential pressure transmitter Pb17, intake test tube 7, intake rectifier grid 8, collector 10, fan 1 is connected to transition pipe 2 at one end, and the transition The tube 2 is connected to the gas outlet test tube 4. The gas outlet test tube 4 is provided with a thermometer 3, a pressure measurement hole A and a pressure measurement hole B. The pressure measurement holes A and B are provided with a short conduit E12 and a short conduit F13. The gas outlet test tube 4 Connect to one end of the flame arrester 6 through the air outlet rectifying grid 5, and the other end of the flame arrester 6 is connected to the intake test tube 7, and the intake test tube 7 is provided with a pressure measurement hole C and a pressure measurement hole D, and the pressure measurement holes C and D are A short conduit G14 and a short conduit H15 are provided. The other end of the intake test pipe 7 is connected to the collector 10 through the intake rectifier grid 8. The collector 10 is provided with a gas flowmeter 9, and the bracket 11 is equipped with casters and Supporting plate, supporting plate height can be adjusted, and bracket 11 is positioned at the below of outlet test tube 4 and intake test tube 7. The two ends of the flame arrester 6 are respectively connected to the outlet test pipe 4 and the inlet test pipe 7, the connection method is flange connection, and equipped with C-shaped clamps, and the pressure measuring holes A, B, C, D are evenly distributed on the outlet test pipe 4 On the circumference of the same section as the intake test pipe 7, the diameters of the pressure measuring holes A, B, C, and D are 2 mm, and the surroundings of the holes are smooth and free of burrs. the

The conduit E12, the short conduit F13, the short conduit G14, and the short conduit H15 are welded on the outer wall of the pressure measuring hole of the test tube, and the inner diameter of the short conduit is twice the diameter of the pressure measuring hole. The arithmetic mean value of the static pressure of the four pressure measuring holes is the average static pressure on the section. The inner diameters of the outlet test tube 4 and the inlet test tube 7 are equal to the inner diameter of the flame arrester 6, and the inner wall surface is flat and smooth. The thickness range of the partitions of the air outlet rectifying grid 5 and the intake rectifying grid 8 is 0.015 mm, and the distance between the partitions of the air outlet rectifying grid 5 is 0.75 mm. The range of the differential pressure transmitter Pa, Pb, is ±3000Pa, the accuracy is 0.5%, the current collector 10 is a conical current collector, and the surface roughness value is not greater than 3.2 μm. the

During detection, the outlet test pipe 4 is connected to the transition pipe 2, and the flame arrester 6 to be tested is connected between the outlet test pipe 4 and the intake test pipe 7 in a flanged manner. Conduit E12, short conduit F13 and short conduit G14 and short conduit H15 on the intake test pipe 7, wherein a differential pressure transmitter Pb17 is installed between the short conduit E12 and the short conduit H15, and between the short conduit F13 and the short conduit G14 The differential pressure transmitter Pa16 is installed, the fan 1 is turned on, the flame arrester layer of the flame arrester 4 is cleaned, and then it is installed and fixed on the test device according to the position shown in the attached drawing. The current collector 10 enters. The air state used in the test medium is: the absolute pressure is 0.1MPa, the temperature indicated by the thermometer is 20°C, the relative humidity is 50%, and the density is 1.2kg/m3. Start the fan 1, and adjust its air supply volume. After the pressure is stable, read the differential pressure value and air flow through the differential pressure transmitter Pa and Pb and the gas flow meter 9. Read the value once per minute, read three times in total, and take the average value. According to the technical requirements of flame arrester pressure loss and air flow provided in the reading data of the test, the test results can be obtained. the

For those skilled in the art, various other corresponding changes and modifications can be made according to the above technical solutions and ideas, and all these changes and modifications should fall within the protection scope of the claims of the present utility model. the

Claims (8)

1. the flame arrester for petroleum tank pressure loss and a throughput pick-up unit, is characterized in that: comprise blower fan, transition conduit, thermometer, to give vent to anger testing tube, to give vent to anger honeycomb screen, spark arrester, bracket, gas meter, differential pressure transmitter Pa, differential pressure transmitter Pb, air inlet testing tube, air inlet honeycomb screen, current collector, described blower fan one end is connected with transition conduit, and described transition conduit is connected to testing tube of giving vent to anger, described in testing tube of giving vent to anger be provided with thermometer, pressure tap A and pressure tap B, described pressure tap A and B is provided with tubulature E and tubulature F, described testing tube of giving vent to anger is connected to spark arrester one end through honeycomb screen of giving vent to anger, the described spark arrester other end is connected to air inlet testing tube, described air inlet testing tube is provided with pressure tap C and pressure tap D, described pressure tap C and D is provided with tubulature G and tubulature H, the described air inlet testing tube other end is connected to current collector through air inlet honeycomb screen, described current collector is provided with gas meter, bracket is provided with castor and supporting plate, described supporting plate height can regulate, and bracket is positioned at below give vent to anger testing tube and air inlet testing tube.

2. a kind of flame arrester for petroleum tank pressure loss according to claim 1 and throughput pick-up unit, is characterized in that: described spark arrester two ends are connected to give vent to anger testing tube and air inlet testing tube, and described connected mode is Flange joint, and is furnished with C type pincers.

3. a kind of flame arrester for petroleum tank pressure loss according to claim 1 and throughput pick-up unit, is characterized in that: described pressure tap A, B, C, D are uniformly distributed in the same cross section of give vent to anger testing tube and air inlet testing tube circumferentially.

4. a kind of flame arrester for petroleum tank pressure loss according to claim 3 and throughput pick-up unit, is characterized in that: the diameter range of described pressure tap A, B, C, D is 2-3mm, the smooth impulse-free robustness of surrounding in its hole.

5. a kind of flame arrester for petroleum tank pressure loss according to claim 4 and throughput pick-up unit, it is characterized in that: described tubulature is welded in the outside wall surface of testing tube pressure tap, and the internal diameter of tubulature is 2 times that measure pressure measurement aperture, the static pressure arithmetic mean of four pressure taps is the average static pressure on this cross section.

6. a kind of flame arrester for petroleum tank pressure loss according to claim 1 and throughput pick-up unit, is characterized in that: described in the give vent to anger internal diameter of testing tube and air inlet testing tube equal with the internal diameter of spark arrester, and its inner wall surface flat smooth.

7. a kind of flame arrester for petroleum tank pressure loss according to claim 1 and throughput pick-up unit, is characterized in that: described differential pressure transmitter range is ± 3000Pa, and precision is 0.5%.

8. a kind of flame arrester for petroleum tank pressure loss according to claim 1 and throughput pick-up unit, is characterized in that: described current collector is taper current collector, and surface roughness value is not more than 3.2 μm.