Liquid sulphur storage tank level measuring device

Abstract

The utility model discloses a kind of liquid sulphur storage tank liquid level measuring devices, including heat-preservation jacket valve, the heat-preservation jacket valve one end is connected with the detection port of sulphur storage tank lower side, and the other end of heat-preservation jacket valve is connected with pressure flange liquid level meter;Under use state, pressure flange liquid level meter is electrically connected with differential pressure transmitter.The utility model passes through using pressure flange liquid level meter, and installs heat-preservation jacket valve between the detection port of sulphur storage tank lower side and pressure flange liquid level meter, not only can sulphur liquid level be measured, but also sulphur shell adhered to the inside pressure detection surface of pressure flange liquid level meter can be cleaned and maintained without causing sulphur steam overflow.

Description

Technical Field

[0001] This utility model relates to the field of fertilizer production equipment technology, and in particular to a liquid sulfur storage tank level measuring device. Background Technology

[0002] In fertilizer production, sulfuric acid needs to be manufactured from sulfur. During sulfuric acid production, sulfur ore requires heating to separate impurities, and the molten sulfur needs to be temporarily stored in sulfur storage tanks. Currently, the sulfur level in these tanks is monitored by installing ultrasonic or radar level gauges on the top of the tank. For example, CN208155405U discloses an improved liquid sulfur tank level measuring device that uses a radar level gauge. However, after a period of use, sulfur vapor adheres to the radar level gauge probe. Because the probe is close to the upper flange, which is in contact with the outside environment, the temperature at the probe is relatively low, causing the sulfur vapor to solidify and form a crust, affecting the use of the radar level gauge. The only solution is frequent disassembly and cleaning, but cleaning the probe requires disassembling the upper flange, which opens the sulfuric acid tank, causing sulfur vapor to overflow and making cleaning and maintenance of the radar level gauge inconvenient. Utility Model Content

[0003] The technical problem to be solved by this utility model is to address the problems existing in the background art and provide a liquid sulfur storage tank level measuring device. By using a pressure flange level gauge and installing an insulated jacket valve between the detection port on the lower side of the sulfur storage tank and the pressure flange level gauge, it can not only solve the problem of measuring the sulfur level, but also solve the problem of cleaning and maintaining the pressure flange level gauge without causing sulfur vapor to overflow.

[0004] To solve the above-mentioned technical problems, the technical solution adopted by this utility model is: a liquid sulfur storage tank level measuring device, including a heat-insulated jacket valve, one end of which is installed and connected to the detection port on the lower side of the sulfur storage tank, and the other end of which is installed and connected to a pressure flange level gauge; in the use state, the pressure flange level gauge is electrically connected to a differential pressure transmitter.

[0005] A cleaning device for cleaning the differential pressure transmitter is also installed between the insulated jacket valve and the pressure flange level gauge.

[0006] The cleaning device includes a connecting pipe and a first flange and a second flange fixed to both ends of the connecting pipe. The first flange is used to connect to the insulation jacket valve, and the second flange is used to connect to the pressure flange level gauge. A cleaning pipe is installed on the connecting pipe. A first valve is installed at the end of the cleaning pipe outside the connecting pipe, and a cap is fixed to the end of the connecting pipe inside the connecting pipe. Multiple spray holes are provided at the end of the connecting pipe near the cap. A slag discharge pipe is also connected to the bottom of the connecting pipe, and a valve is installed on the slag discharge pipe.

[0007] The nozzles are arranged in a ring on the connecting pipe.

[0008] The cleaning tube and the connecting tube are slidably and sealed together.

[0009] A sealing seat is fixed to the outside of the connecting pipe. A sliding hole is provided inside the sealing seat to pass through the connecting pipe. The cleaning pipe is movably installed in the sliding hole. A sealing groove is provided on the top of the sealing seat on the outside of the cleaning pipe. A sealing element is installed in the sealing groove. A pressure cap is installed on the top of the sealing seat by screws. The ring on the lower side of the pressure cap extends into the sealing groove to abut against the sealing element.

[0010] The inner wall of the connecting pipe is provided with a placement groove on the outside of the cleaning pipe. The diameter of the cap is larger than the outer diameter of the cleaning pipe, and the placement groove is adapted to the cap.

[0011] A limiting device is installed at the upper end of the cleaning tube.

[0012] A sealing ring is fixed to the outside of the connecting pipe between the first flange and the second flange, forming a sealing cavity between the sealing ring and the connecting pipe. A steam inlet pipe and a steam outlet pipe are connected to the outside of the sealing ring.

[0013] The present invention has the following beneficial effects:

[0014] 1. This utility model uses a pressure flange level gauge and installs an insulated jacket valve between the detection port on the lower side of the sulfur storage tank and the pressure flange level gauge. This not only allows for the measurement of the sulfur level, but also enables the cleaning and maintenance of the sulfur shell attached to the pressure detection surface inside the pressure flange level gauge without causing sulfur vapor to overflow.

[0015] 2. A cleaning device for cleaning the differential pressure transmitter is also installed between the insulated jacket valve and the pressure flange level gauge of this utility model. This cleaning device allows for the cleaning and maintenance of the sulfur shell adhering to the pressure detection surface of the pressure flange level gauge without disassembling the gauge.

[0016] 3. The cleaning tube and connecting tube of this utility model are slidably and sealed together. During cleaning, the cleaning tube can move up and down, reducing cleaning dead corners and thus enabling more thorough cleaning. Attached Figure Description

[0017] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0018] Figure 1 This is a diagram showing the usage state of this utility model.

[0019] Figure 2 This is a cross-sectional structural diagram of the liquid level measuring device of this utility model.

[0020] Figure 3 This is a schematic diagram of the main structure of the cleaning device of this utility model.

[0021] Figure 4 for Figure 3 A cross-sectional view of the AA structure, in which the lower end of the cleaning pipe is located inside the connecting pipe.

[0022] Figure 5 This is a schematic diagram of the sliding sealing connection between the sealing seat and the cleaning pipe of this utility model.

[0023] Figure 6 for Figure 3 A cross-sectional view of the AA structure, showing that the cap at the lower end of the cleaning tube is located inside the placement groove.

[0024] Figure Labels

[0025] Sulfur storage tank 1, detection port 2, air inlet pipe 3, air guide pipe 4, air return pipe 5, steam inlet pipe 6, steam outlet pipe 7;

[0026] Insulated jacketed valve 10;

[0027] Pressure flange level gauge 20, differential pressure transmitter 21;

[0028] The cleaning device 30 includes a connecting pipe 31, a placement groove 311, a first flange 32, a second flange 33, a sealing seat 34, a sliding hole 341, a sealing groove 342, a cleaning pipe 35, a cover 351, a spray hole 352, a limiting element 353, a first valve 354, a sealing element 36, a pressure cap 37, a screw 371, a slag discharge pipe 38, a second valve 381, a sealing ring 39, and a sealing cavity 391. Detailed Implementation

[0029] Example 1:

[0030] like Figure 1-2 As shown, a liquid sulfur storage tank level measuring device includes an insulated jacket valve 10. One end of the insulated jacket valve 10 is installed and connected to the detection port 2 on the lower side of the sulfur storage tank 1, and the other end of the insulated jacket valve 10 is installed and connected to a pressure flange level gauge 20. In use, the pressure flange level gauge 20 is electrically connected to a differential pressure transmitter 21.

[0031] This utility model employs a pressure flange level gauge 20 and installs an insulated jacket valve 10 between the detection port 2 on the lower side of the sulfur storage tank 1 and the pressure flange level gauge 20. This not only allows for the measurement of the sulfur level but also enables the cleaning and maintenance of the sulfur shell attached to the pressure detection surface inside the pressure flange level gauge 20 without causing sulfur vapor to overflow.

[0032] See Figure 1 , 2 A detection port 2 is installed on the lower side of the sulfur storage tank 1. A flange is welded to the end of the detection port 2. The flange at one end of the insulated jacket valve 10 is bolted to the flange on the detection port 2, and the flanges on both sides are sealed with a sealing ring. The flange at the other end of the insulated jacket valve 10 is bolted to a pressure flange level gauge 20 for sealing. The pressure flange level gauge 20 detects the pressure change inside the sulfur storage tank 1, thereby obtaining the liquid level inside the sulfur storage tank 1.

[0033] When using, please refer to Figure 2 The air inlet of the insulation jacket valve 10 is connected to the steam inlet pipe 3, and the exhaust port of the insulation jacket valve 10 is connected to the return gas main pipe. The insulation jacket valve 10 heats and insulates the sulfur inside, preventing the sulfur from solidifying.

[0034] Furthermore, an outer layer is also provided on the outside of the pipe of detection port 2. The exhaust port of the insulation jacket valve 10 is connected to the air inlet of the pipe of detection port 2 through the air guide pipe 4. The exhaust port of the pipe of detection port 2 is connected to the main air return pipe through the air return pipe 5.

[0035] When maintenance is required on the pressure flange level gauge 20, close the insulation jacket valve 10 to disassemble the pressure flange level gauge 20 for maintenance. A small amount of sulfur will flow out when disassembling the pressure flange level gauge 20, which should be collected in a container.

[0036] Example 2:

[0037] Because the structure in Embodiment 1 requires disassembling the pressure flange level gauge 20 during cleaning and maintenance, therefore, in this embodiment, see... Figures 2 to 6 A cleaning device 30 is also installed between the insulated jacket valve 10 and the pressure flange level gauge 20 for cleaning the differential pressure transmitter 21. The cleaning device 30 enables the cleaning and maintenance of the sulfur shell adhering to the pressure detection surface of the pressure flange level gauge 20 without disassembling the pressure flange level gauge 20.

[0038] Specifically, see Figure 4The cleaning device 30 includes a connecting pipe 31 and a first flange 32 and a second flange 33 respectively fixed to both ends of the connecting pipe 31. The first flange 32 is connected to the insulation jacket valve 10 by bolts. A pressure flange level gauge 20 is installed on the second flange 33 by bolts, and the detection surface of the pressure flange level gauge 20 extends into the inner hole of the second flange 33. A cleaning pipe 35 is installed on the connecting pipe 31. A first valve 354 is installed at the end of the cleaning pipe 35 outside the connecting pipe 31. The first valve 354 is used to connect to the steam pipeline. A cap 351 is fixed to the end of the connecting pipe 31 inside the connecting pipe 31. Multiple spray holes 352 are provided at the end of the connecting pipe 31 at the end of the cap 351. A slag discharge pipe 38 is also connected to the bottom of the connecting pipe 31. A second valve 381 is installed on the slag discharge pipe 38.

[0039] In this embodiment, the cleaning pipe 35 is fixedly welded to the connecting pipe 31. One end of the cleaning pipe 35 extends into the connecting pipe 31, and the other end is located outside the connecting pipe 31. A first valve 354 is installed at the end of the cleaning pipe 35 located outside the connecting pipe 31. In use, the first valve 354 is connected to the steam pipe through a metal-armored steam hose.

[0040] Before maintenance, close the insulation jacket valve 10 and open the second valve 381 to discharge the sulfur in the connecting pipe 31 and collect it in a container.

[0041] During maintenance, the first valve 354 is opened, and steam is ejected from the nozzle 352 at one end of the cleaning pipe 35 located inside the connecting pipe 31 to clean the inner wall of the connecting pipe 31 and the pressure detection surface of the pressure flange level gauge 20.

[0042] After cleaning, close the first valve 354, then close the second valve 381, and then open the insulation jacket valve 10.

[0043] See Figure 5 Multiple nozzles 352 are arranged in a ring on the connecting pipe 31. The cleaning pipe 35 is located at the top of the connecting pipe 31, and the slag discharge pipe 38 is located at the bottom of the connecting pipe 31.

[0044] Example 3:

[0045] Based on Example 1, the cleaning tube 35 and the connecting tube 31 are slidably and sealed together. During cleaning, the cleaning tube 35 can move up and down, reducing cleaning dead spots and thus enabling more thorough cleaning.

[0046] Specifically, see Figure 4 , 56. A sealing seat 34 is welded to the outside of the connecting pipe 31. A sliding hole 341 is provided inside the sealing seat 34 to pass into the connecting pipe 31. The cleaning pipe 35 is movably installed in the sliding hole 341. A sealing groove 342 is provided on the top of the sealing seat 34 on the outside of the cleaning pipe 35. A sealing element 36 is installed in the sealing groove 342. A pressure cap 37 is installed on the top of the sealing seat 34 by screws 371. The ring on the lower side of the pressure cap 37 extends into the sealing groove 342 to abut against the sealing element 36.

[0047] When in use, the cleaning tube 35 can be pushed up and pulled up and down to move the cleaning tube 35 up and down.

[0048] In this embodiment, the sealing element 36 is a packing. When the cleaning tube 35 needs to be pushed up and down, loosen the screw 371 to loosen the packing. After cleaning, tighten the screw 371 to seal the cleaning tube 35 and the sealing seat 34 by squeezing the packing.

[0049] Specifically, the gland 37 is fitted onto the outside of the cleaning tube 35, and the lower side of the gland 37 has a ring that extends into the sealing groove 342 to abut against the seal 36.

[0050] Furthermore, a placement groove 311 is provided on the inner wall of the connecting pipe 31 on the outer side of the cleaning pipe 35. The diameter of the cap 351 is larger than the outer diameter of the cleaning pipe 35. The placement groove 311 is adapted to the cap 351. A limiting member 353 is installed at the upper end of the cleaning pipe 35. With the above structure, a large amount of sulfur is prevented from entering the cleaning pipe 35 after cleaning.

[0051] When cleaning is not performed, see Figure 6 Lift the cleaning tube 35 up, put the cap 351 into the placement slot 311, and seal the spray hole 352.

[0052] When cleaning is required, push the cleaning tube down 35, such as... Figure 4 As shown, the cleaning tube 35 extends downwards.

[0053] Example 4:

[0054] Based on Example 2 or 3, see Figure 3 , 4 A sealing ring 39 is fixedly connected to the outside of the connecting pipe 31 between the first flange 32 and the second flange 33. A sealing cavity 391 is formed between the sealing ring 39 and the connecting pipe 31. A steam inlet pipe 6 and a steam outlet pipe 7 are connected to the outside of the sealing ring 39. With the above structure, the sulfur inside the connecting pipe 31 is heated and kept warm during use.

[0055] The operation process or principle of this utility model is as follows:

[0056] Before maintenance, close the insulation jacket valve 10 and open the second valve 381 to discharge the sulfur in the connecting pipe 31 and collect it in a container.

[0057] During maintenance, first loosen screw 371 to loosen the packing. Open the first valve 354, and steam will be ejected from the nozzle 352 at one end of the cleaning pipe 35 located inside the connecting pipe 31. Push and pull the cleaning pipe 35 up and down to move it up and down, and perform steam cleaning on the inner wall of the connecting pipe 31 and the pressure detection surface of the pressure flange level gauge 20.

[0058] After cleaning, close the first valve 354, and then close the second valve 381. Lift the cleaning pipe 35, put the cap 351 into the placement slot 311, seal the spray hole 352, tighten the screw 371, and seal the cleaning pipe 35 and the sealing seat 34 by squeezing the packing. Then open the insulation jacket valve 10.

Claims

1. A liquid level measuring device for a liquid sulfur storage tank, characterized in that: Includes a heat-insulating jacketed valve (10), one end of which is installed and connected to the detection port (2) on the lower side of the sulfur storage tank (1), and the other end of which is installed and connected to a pressure flange level gauge (20); in use, the pressure flange level gauge (20) is electrically connected to a differential pressure transmitter (21).

2. The liquid level measuring device for a liquid sulfur storage tank according to claim 1, characterized in that: A cleaning device (30) for cleaning the differential pressure transmitter (21) is also installed between the insulation jacket valve (10) and the pressure flange level gauge (20).

3. The liquid level measuring device for a liquid sulfur storage tank according to claim 2, characterized in that: The cleaning device (30) includes a connecting pipe (31) and a first flange (32) and a second flange (33) respectively fixed to both ends of the connecting pipe (31). The first flange (32) is used to connect to the insulation jacket valve (10), and the second flange (33) is used to connect to the pressure flange level gauge (20). A cleaning pipe (35) is radially installed on the connecting pipe (31). A first valve (354) is installed at one end of the cleaning pipe (35) outside the connecting pipe (31), and a cap (351) is fixed to one end inside the connecting pipe (31). Multiple spray holes (352) are provided at one end of the connecting pipe (31) near the cap (351). A slag discharge pipe (38) is also connected to the bottom of the connecting pipe (31), and a second valve (381) is installed on the slag discharge pipe (38).

4. The liquid level measuring device for a liquid sulfur storage tank according to claim 3, characterized in that: The nozzles (352) are arranged in a ring on the connecting pipe (31).

5. The liquid level measuring device for a liquid sulfur storage tank according to claim 3, characterized in that: The cleaning pipe (35) and the connecting pipe (31) are connected in a sliding seal.

6. The liquid level measuring device for a liquid sulfur storage tank according to claim 5, characterized in that: A sealing seat (34) is fixed to the outside of the connecting pipe (31). A sliding hole (341) is provided inside the sealing seat (34) to penetrate into the connecting pipe (31). The cleaning pipe (35) is movably installed in the sliding hole (341). A sealing groove (342) is provided on the top of the sealing seat (34) on the outside of the cleaning pipe (35). A sealing element (36) is installed in the sealing groove (342). A pressure cap (37) is installed on the top of the sealing seat (34) by a screw (371). The ring on the lower side of the pressure cap (37) extends into the sealing groove (342) to abut against the sealing element (36).

7. The liquid level measuring device for a liquid sulfur storage tank according to claim 6, characterized in that: The inner wall of the connecting pipe (31) is provided with a placement groove (311) on the outside of the cleaning pipe (35). The diameter of the cap (351) is larger than the outer diameter of the cleaning pipe (35), and the placement groove (311) is adapted to the cap (351).

8. The liquid level measuring device for a liquid sulfur storage tank according to claim 7, characterized in that: A limiting member (353) is installed at the upper end of the cleaning tube (35).

9. The liquid level measuring device for a liquid sulfur storage tank according to any one of claims 3 to 8, characterized in that: Outside the connecting pipe (31), a sealing ring (39) is fixed between the first flange (32) and the second flange (33). A sealing cavity (391) is formed between the sealing ring (39) and the connecting pipe (31). A steam inlet pipe (6) and a steam outlet pipe (7) are connected to the outside of the sealing ring (39).

Images