Pressure monitoring structure for asphalt storage tank

Abstract

The utility model provides a pressure monitoring structure for an asphalt storage tank, which comprises a tank body, a plurality of circumferentially arranged heating pipes are embedded in the inner wall of the tank body, an air outlet hole is formed in the top of the tank body, a shell is arranged at the top of the tank body, a vertical guide rod is fixedly connected to the inner top wall of the shell, a connecting plate slidably sleeves the guide rod, and an air guide pipe is fixedly connected to the top of the shell. A workbench is arranged at the bottom of the U-shaped pipe; a glass pipe sleeves the top of the U-shaped pipe; an electric push rod is fixedly connected to the top of the workbench; a mounting frame is fixedly connected to the push rod end of the electric push rod; an alarm and a switch group are arranged on the front of the workbench. When asphalt is heated, the pressure in the tank body is monitored, when the pressure value in the tank body is too large, pressure relief can be conducted on the interior of the tank body through the pressure discharging pipe in time, heating safety is guaranteed, and the service life of the tank body is prolonged.

Description

Technical Field

[0001] The utility model relates to the technical field of asphalt storage tank pressure monitoring, and in particular to a pressure monitoring structure for an asphalt storage tank. Background Art

[0002] Asphalt storage tank is a device used to store asphalt, usually made of steel, with good thermal insulation and corrosion resistance; it can be used to store various types of asphalt, including petroleum asphalt, coal asphalt and natural asphalt. The main function of asphalt storage tank is to store asphalt to meet the needs of asphalt concrete mixing stations, road construction and other projects. Before use, asphalt needs to be heated in the tank in advance so that it has fluidity after reaching a certain temperature. However, the current heating time for asphalt is generally long, which will cause the pressure value in the tank to continue to increase. When the pressure value in the tank is too high, it may cause damage to the inside of the tank, affecting the subsequent use quality of the tank, and there are certain safety hazards. Utility Model Content

[0003] In view of the above situation, the problem to be solved by the utility model is: when asphalt is heated at present, the heating time is generally long, which will cause the pressure value in the storage tank to continue to increase. When the pressure value in the storage tank is too large, it may cause damage to the inside of the storage tank, affecting the subsequent use quality of the storage tank, and there are certain safety hazards.

[0004] In order to achieve the above-mentioned purpose, the technical solution adopted by the utility model is: to provide a pressure monitoring structure for an asphalt storage tank, which includes a tank body, a plurality of heating tubes arranged in a circumferential manner are embedded in the inner wall of the tank body, an air outlet is opened on the top of the tank body, a shell is arranged on the top of the tank body, a vertical guide rod is fixedly connected to the top wall of the shell, and a connecting plate is slidably sleeved on the guide rod; an air guide pipe is fixedly connected to the top of the shell, a U-shaped tube is sleeved on the end of the air guide pipe away from the shell, a workbench is provided at the bottom of the U-shaped tube, a glass tube is sleeved on the top of the U-shaped tube, an electric push rod is fixedly connected to the top of the workbench, the push rod end of the electric push rod is fixedly connected to a mounting frame, a liquid level sensor is embedded on the mounting frame, the probe end of the liquid level sensor is placed in the glass tube, an alarm and a switch group are provided on the front of the workbench, and a pressure relief pipe is fixedly connected to the top of the tank body.

[0005] A first solenoid valve is installed on the pressure discharge pipe.

[0006] The outer wall of the tank body is fixedly connected with a discharge pipe, and a second solenoid valve is installed on the discharge pipe.

[0007] A detachable top cover is arranged on the top of the tank body.

[0008] The bottom of the guide rod is fixedly connected to a limiting block, and the connecting plate is in contact with the inner wall of the shell.

[0009] The liquid level sensor is electrically connected to the alarm, and the electric push rod, the first solenoid valve, the second solenoid valve and the heating tube are all electrically connected to the switch group.

[0010] The U-shaped tube is fixedly installed on the top of the workbench.

[0011] The beneficial effects of the utility model include: by providing the guide rod, the connecting plate, the limit block, the air guide tube, the U-shaped tube, the glass tube, the electric push rod, the mounting frame, the liquid level sensor, the alarm, the switch group, the pressure relief pipe and the first solenoid valve, a certain amount of water is poured into the U-shaped tube through the glass tube, the water in the U-shaped tube is in a U shape, the initial liquid level heights at both ends are the same, the mounting frame is driven downward by the electric push rod, so that the probe end of the liquid level sensor is placed in the glass tube, when the asphalt in the tank body is heated by the heating tube, the pressure value in the tank body gradually increases, the air outlet hole opened on the top of the tank body makes the connecting plate slide upward, and the pressure value in the U-shaped tube is increased through the provided air guide tube, so that the liquid level height difference of the water in the U-shaped tube changes, the water in the U-shaped tube is higher on the left and lower on the right, and when the water in the U-shaped tube is placed in the When the glass tube contacts the end of the probe rod of the liquid level sensor, the alarm sounds, and the staff opens the first solenoid valve through the switch group, and promptly releases the pressure in the tank through the pressure relief pipe to prevent the pressure value in the tank from being too high and causing damage to the inside of the tank, thereby improving the safety of asphalt heating and ensuring the service life of the tank. This solves the problem that when heating asphalt in the prior art, the heating time is generally long, which will cause the pressure value in the storage tank to continue to increase. When the pressure value in the storage tank is too high, it may cause damage to the inside of the storage tank, affecting the subsequent use quality of the storage tank and posing certain safety hazards. Through the set discharge pipe and the second solenoid valve, after the heating of the asphalt in the tank is completed, the second solenoid valve is opened through the switch group, and the asphalt in the tank is discharged through the discharge pipe for subsequent use. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 This is a schematic diagram of the overall structure of the pressure monitoring structure for asphalt storage tanks;

[0013] Figure 2 It is a schematic diagram of the front view of the pressure monitoring structure for asphalt storage tanks;

[0014] Figure 3 It is a schematic diagram of the cross-sectional structure of the pressure monitoring structure for asphalt storage tanks;

[0015] Figure 4 It is a schematic diagram of the cross-sectional structure of the pressure monitoring structure for asphalt storage tanks;

[0016] In the figure: 1. tank body; 2. air outlet; 3. shell; 4. guide rod; 5. connecting plate; 6. air guide pipe; 7. U-shaped pipe; 8. workbench; 9. glass tube; 10. electric push rod; 11. mounting frame; 12. liquid level sensor; 13. alarm; 14. switch group; 15. pressure relief pipe; 16. first solenoid valve; 17. discharge pipe; 18. second solenoid valve; 19. top cover; 20. limit block; 21. heating tube. DETAILED DESCRIPTION

[0017] To make the purpose, technical solution and advantages of the embodiment of the utility model clearer, the technical solution in the embodiment of the utility model will be described clearly and completely in conjunction with the accompanying drawings. Obviously, the described embodiment is a part of the embodiment of the utility model, not all of the embodiments.

[0018] like Figure 1-4 As shown, a pressure monitoring structure for an asphalt storage tank proposed in this embodiment includes a tank body 1, a plurality of heating tubes 21 arranged in a circumferential manner are embedded in the inner wall of the tank body 1, an air outlet 2 is opened on the top of the tank body 1, a shell 3 is arranged on the top of the tank body 1, a vertical guide rod 4 is fixedly connected to the top wall of the shell 3, a connecting plate 5 is slidably sleeved on the guide rod 4, an air guide pipe 6 is fixedly connected to the top of the shell 3, a U-shaped tube 7 is sleeved on the end of the air guide pipe 6 away from the shell 3, a workbench 8 is provided at the bottom of the U-shaped tube 7, a glass tube 9 is sleeved on the top of the U-shaped tube 7, a certain amount of water is poured into the U-shaped tube 7 through the glass tube 9, the water in the U-shaped tube 7 is in a U shape, and the initial liquid level heights at both ends are the same, an electric push rod 10 is fixedly connected to the top of the workbench 8, and a mounting frame 11 is fixedly connected to the push rod end of the electric push rod 10 The mounting frame 11 is driven to move downward, and a liquid level sensor 12 is embedded on the mounting frame 11, so that the probe end of the liquid level sensor 12 is placed in the glass tube 9. An alarm 13 and a switch group 14 are arranged on the front of the workbench 8. A pressure relief pipe 15 is fixedly connected to the top of the tank body 1. When the asphalt in the tank body 1 is heated by the heating pipe 21, the pressure value in the tank body 1 gradually increases, and the connecting plate 5 slides upward through the air outlet 2 opened on the top of the tank body 1. The pressure value in the U-shaped tube 7 is continuously increased through the arranged air guide pipe 6, so that the liquid level height difference of the water in the U-shaped tube 7 changes, and the water in the U-shaped tube 7 is higher on the left and lower on the right. When the water in the U-shaped tube 7 is placed in the glass tube 9 and contacts the probe end of the liquid level sensor 12, the alarm 13 sounds an alarm, and the pressure inside the tank body 1 is timely relieved through the pressure relief pipe 15.

[0019] like Figure 1 , 2As shown, a first solenoid valve 16 is installed on the pressure relief pipe 15. After the alarm 13 sounds an alarm, the staff opens the first solenoid valve 16 through the switch group 14, and timely releases the pressure inside the tank body 1 through the pressure relief pipe 15 to prevent the pressure value inside the tank body 1 from being too high and causing damage to the inside of the tank body 1, thereby improving the safety of asphalt heating and ensuring the service life of the tank body 1.

[0020] like Figure 1 As shown, a discharge pipe 17 is fixedly connected to the outer wall of the tank body 1, and a second solenoid valve 18 is installed on the discharge pipe 17. After the asphalt in the tank body 1 is heated, the second solenoid valve 18 is opened by the switch group 14, and the asphalt in the tank body 1 is discharged through the discharge pipe 17 for subsequent use.

[0021] like Figure 1 As shown, a detachable top cover 19 is provided on the top of the tank body 1 . The staff opens the top cover 19 , introduces asphalt into the tank body 1 through a feeding device, and then closes the top cover 19 and connects it to the tank body 1 .

[0022] like Figure 1 , 3 As shown, the bottom of the guide rod 4 is fixedly connected to a limiting block 20 , and the connecting plate 5 is in contact with the inner wall of the housing 3 . The limiting block 20 can prevent the connecting plate 5 from detaching from the guide rod 4 .

[0023] like Figure 1-3 As shown, the liquid level sensor 12 is electrically connected to the alarm 13, and the electric push rod 10, the first solenoid valve 16, the second solenoid valve 18 and the heating tube 21 are all electrically connected to the switch group 14. When the water in the U-shaped tube 7 is placed in the glass tube 9 and contacts the probe end of the liquid level sensor 12, the alarm 13 sounds an alarm. Figure 2 , 3 As shown, the U-shaped tube 7 is fixedly installed on the top of the workbench 8.

[0024] Specifically, when the pressure monitoring structure for an asphalt storage tank is in use: the staff opens the top cover 19, introduces asphalt into the tank body 1 through the feeding device, then closes the top cover 19 and connects it to the tank body 1, pours a certain amount of water into the U-shaped tube 7 through the glass tube 9, the water in the U-shaped tube 7 is in a U shape, and the initial liquid level heights at both ends are the same, the electric push rod 10 is started through the switch group 14, and the electric push rod 10 drives the mounting frame 11 to move downward, so that the probe end of the liquid level sensor 12 is placed in the glass tube 9, and when the asphalt in the tank body 1 is heated by the heating tube 21, the pressure value in the tank body 1 gradually increases, and the pressure value is gradually increased through the top opening of the tank body 1. The air outlet 2 is arranged so that the connecting plate 5 slides upward, and the pressure value in the U-shaped tube 7 is continuously increased through the arranged air guide pipe 6, so that the height difference of the liquid level of the water in the U-shaped tube 7 changes, and the water in the U-shaped tube 7 is higher on the left and lower on the right. When the water in the U-shaped tube 7 is placed in the glass tube 9 and contacts the probe end of the liquid level sensor 12, the alarm 13 sounds an alarm, and the staff opens the first solenoid valve 16 through the switch group 14, and timely releases the pressure inside the tank body 1 through the pressure relief pipe 15, so as to prevent the pressure value inside the tank body 1 from being too large to cause damage to the inside of the tank body 1, thereby improving the safety of asphalt heating and ensuring the service life of the tank body 1.

[0025] The above embodiments are only used to illustrate the present invention and are not intended to limit the technical solutions described in the present invention. Although the present invention has been described in detail with reference to the above embodiments, the present invention is not limited to the above specific implementation methods. Therefore, any modification or equivalent replacement of the present invention; and all technical solutions and improvements thereof that do not depart from the spirit and scope of the invention are included in the scope of the claims of the present invention.

Claims

1. A pressure monitoring structure for an asphalt storage tank, comprising a tank body (1), characterized in that: The inner wall of the tank body (1) is embedded with a plurality of heating tubes (21) arranged in a circumferential manner; the top of the tank body (1) is provided with an air outlet hole (2); a shell (3) is arranged on the top of the tank body (1); a vertical guide rod (4) is fixedly connected to the inner top wall of the shell body (3); a connecting plate (5) is slidably sleeved on the guide rod (4); an air guide tube (6) is fixedly connected to the top of the shell body (3); a U-shaped tube (7) is sleeved on one end of the air guide tube (6) away from the shell body (3); a workbench (7) is arranged at the bottom of the U-shaped tube (7) 8); a glass tube (9) is sleeved on the top of the U-shaped tube (7); an electric push rod (10) is fixedly connected to the top of the workbench (8); a push rod end of the electric push rod (10) is fixedly connected to a mounting frame (11); a liquid level sensor (12) is embedded on the mounting frame (11); a probe end of the liquid level sensor (12) is placed in the glass tube (9); an alarm (13) and a switch group (14) are arranged on the front of the workbench (8); and a pressure relief pipe (15) is fixedly connected to the top of the tank body (1).

2. A pressure monitoring structure for an asphalt storage tank according to claim 1, characterized in that: A first solenoid valve (16) is installed on the pressure relief pipe (15).

3. The pressure monitoring structure for an asphalt storage tank according to claim 1, characterized in that: The outer wall of the tank body (1) is fixedly connected to a discharge pipe (17), and a second solenoid valve (18) is installed on the discharge pipe (17).

4. The pressure monitoring structure for an asphalt storage tank according to claim 1, characterized in that: The top of the tank body (1) is provided with a detachable top cover (19).

5. The pressure monitoring structure for an asphalt storage tank according to claim 1, characterized in that: The bottom of the guide rod (4) is fixedly connected to a limiting block (20), and the connecting plate (5) is in contact with the inner wall of the housing (3).

6. The pressure monitoring structure for an asphalt storage tank according to claim 1, characterized in that: The liquid level sensor (12) and the alarm (13) are electrically connected, and the electric push rod (10), the first solenoid valve (16), the second solenoid valve (18) and the heating tube (21) are all electrically connected to the switch group (14).

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