Pipeline system for preventing blockage of sediment at bottom of sodium hydrosulfide tank

Abstract

The utility model relates to the technical field of chemical production, in particular to a pipeline system for preventing blockage of sediment at the bottom of a sodium hydrosulfide tank. The sodium hydrosulfide tank connector is arranged at the bottom of the sodium hydrosulfide tank body, and the sodium hydrosulfide tank connector is provided with a first port located in the tank and a second port located outside the tank; the Y-shaped loading pipeline comprises a connecting pipe, a first suction pipeline and a second suction pipeline which are distributed in a Y shape, the connecting pipe is connected with the first port, a plurality of first suction holes are formed in the first suction pipeline in the length direction, and a plurality of second suction holes are formed in the second suction pipeline in the length direction; the Y-shaped loading pipeline is horizontally arranged in the sodium hydrosulfide tank body; an inlet of the external loading pipeline is connected with the second port, an outlet of the external loading pipeline is connected with a loading connector of a transport vehicle, and a loading pump is arranged on the external loading pipeline. The problems that the sodium hydrosulfide storage tank is difficult to load and cannot be loaded are effectively solved, and meanwhile, the tank cleaning period of the sodium hydrosulfide storage tank is prolonged.

Description

TECHNICAL FIELD

[0001] The utility model relates to a chemical production technical field, concretely is a pipeline system of preventing sodium hydrosulfide tank bottom deposit block. BACKGROUND

[0002] The process characteristics of producing sodium hydrosulfide by adopting lye to absorb hydrogen sulfide determine that a small amount of sodium carbonate and other deposition crystalline substances will inevitably be produced in sodium hydrosulfide products, and these deposition crystalline substances often appear to block the tank bottom loading pump inlet pipeline after long-term accumulation in the tank bottom, and even cause the problem of being unable to load. SUMMARY

[0003] In view of the defects of the prior art, the utility model provides a pipeline system for preventing sodium hydrosulfide tank bottom deposit block, which effectively avoids the problems of sodium hydrosulfide tank loading difficulty and being unable to load, and greatly prolongs the tank cleaning cycle of the sodium hydrosulfide tank.

[0004] In order to achieve the above-mentioned purpose, the utility model provides a pipeline system for preventing sodium hydrosulfide tank bottom deposit block, which comprises a sodium hydrosulfide tank interface, a Y-shaped loading pipeline and an external loading pipeline; the sodium hydrosulfide tank interface is arranged at the bottom of the sodium hydrosulfide tank body, and has a first port located in the tank and a second port located outside the tank; the Y-shaped loading pipeline comprises a connecting pipe, a first suction pipe and a second suction pipe distributed in a Y shape, the connecting pipe is connected with the first port, the first suction pipe is provided with a plurality of first suction holes along the length direction, the second suction pipe is provided with a plurality of second suction holes along the length direction, and the Y-shaped loading pipeline is arranged horizontally inside the sodium hydrosulfide tank body; the inlet of the external loading pipeline is connected with the second port, the outlet is connected with the loading interface of the transport vehicle, a loading pump is arranged on the external loading pipeline, a first one-way valve is arranged at the outlet of the loading pump, and a first valve is arranged upstream of the loading pump on the external loading pipeline.

[0005] Further, a second valve is arranged downstream of the loading pump on the external loading pipeline.

[0006] Further, one end of the first suction pipe is connected with the connecting pipe, and the other end of the first suction pipe is not sealed; one end of the second suction pipe is connected with the connecting pipe, and the other end of the second suction pipe is not sealed.

[0007] Further, the Y-shaped loading pipeline is 200mm away from the tank bottom.

[0008] Further, the first suction holes are arranged on the side of the first suction pipe away from the bottom of the sodium hydrosulfide tank; and the second suction holes are arranged on the side of the second suction pipe away from the bottom of the sodium hydrosulfide tank.

[0009] Furthermore, a tee is provided on the external loading pipeline, and the tee is connected to a backwash pipeline, which is equipped with a backwash pump.

[0010] Furthermore, a second check valve is provided downstream of the backflush pump on the backflush pipeline.

[0011] The beneficial effects of this invention are as follows: By installing an in-tank loading suction pipeline, multiple openings on the pipeline can simultaneously draw in water during loading. Even if crystals block some suction inlets, the loading pump can still operate continuously through the remaining inlets. This effectively avoids difficulties in loading sodium hydrosulfide storage tanks and the problem of being unable to load, while also significantly extending the tank cleaning cycle of sodium hydrosulfide storage tanks. Attached Figure Description

[0012] Figure 1 This is a schematic diagram of a pipeline system for preventing blockage of sodium hydrosulfide tank bottom deposits in one embodiment of the present invention;

[0013] Figure 2 This is a top view of a sodium hydrosulfide tank in one embodiment of the present invention;

[0014] Figure 3 This is a schematic diagram of a pipeline system for preventing blockage by sediment at the bottom of a sodium hydrosulfide tank, according to another embodiment of the present invention.

[0015] Figure 4 This is a schematic diagram of a pipeline system for preventing blockage of sodium hydrosulfide tank bottom deposits in one embodiment of the present invention;

[0016] In the picture:

[0017] 100, Sodium hydrosulfide tank interface; 110, First port; 120, Second port.

[0018] 200, Y-type loading pipeline; 210, connecting pipe; 220, first suction pipe; 221, first suction port; 230, second suction pipe; 231, second suction port.

[0019] 300. External loading pipeline; 310. Loading pump; 320. First check valve; 330. First valve; 340. Second valve.

[0020] 400. Backflush line connection; 410. Backflush pump; 420. Second check valve; 430. Third valve; 440. Line; 441. Valve.

[0021] 10. Sodium hydrosulfide tank; 20. Transport vehicle. Detailed Implementation

[0022] To make the above-mentioned objects, features, and advantages of this utility model more apparent and understandable, the specific embodiments of this utility model will be described in detail below with reference to the accompanying drawings. Many specific details are set forth in the following description to provide a full understanding of this utility model. However, this utility model can be implemented in many other ways different from those described herein, and those skilled in the art can make similar modifications without departing from the spirit of this utility model. Therefore, this utility model is not limited to the specific embodiments disclosed below.

[0023] See Figure 1 and Figure 2 The diagram illustrates a pipeline system for preventing clogging of sodium hydrosulfide tank bottom deposits according to an embodiment of the present invention. The system includes a sodium hydrosulfide tank inlet 100, a Y-shaped loading pipeline 200, and an external loading pipeline 300. The sodium hydrosulfide tank inlet 100 is located at the bottom of the sodium hydrosulfide tank 10, and has a first port 110 located inside the tank and a second port 120 located outside the tank. The Y-shaped loading pipeline 200 includes a Y-shaped connecting pipe 210, a first suction pipe 220, and a second suction pipe 230. The connecting pipe 210 connects to the first port 110. The system has a 0-connection, with a first suction pipe 220 having multiple first suction holes 221 along its length, and a second suction pipe 230 having multiple second suction holes 231 along its length. A Y-shaped loading pipeline 200 is horizontally installed inside the sodium hydrosulfide tank 10. The inlet of the external loading pipeline 300 is connected to the second port 120, and the outlet is connected to the loading interface of the transport vehicle 20. A loading pump 310 is installed on the external loading pipeline 300, and a first check valve 320 is installed at the outlet of the loading pump 310. A first valve 330 is installed upstream of the loading pump 310 on the external loading pipeline 300.

[0024] The aforementioned pipeline system for preventing clogging of sodium hydrosulfide tank bottoms by sediment utilizes a specially designed Y-shaped loading pipeline 200. This allows multiple openings on the loading pipeline inside the tank to simultaneously draw in material during loading. Even if crystals clog some inlets, the loading pump can still operate continuously through the remaining inlets. This effectively avoids difficulties in loading sodium hydrosulfide storage tanks and prevents loading from being impossible, while also significantly extending the tank cleaning cycle.

[0025] Furthermore, in one embodiment, a second valve 340 is provided downstream of the loading pump 310 on the external loading pipeline 300.

[0026] Preferably, in one embodiment, one end of the first suction pipe 220 is connected to the connecting pipe 210, and the other end of the first suction pipe 220 is not sealed; one end of the second suction pipe 230 is connected to the connecting pipe 210, and the other end of the second suction pipe 230 is not sealed.

[0027] Preferably, in one embodiment, the Y-shaped loading line 200 is 200mm from the bottom of the tank. Setting the Y-shaped loading line 200 at a reasonable height provides a certain buffer space for the deposition of crystals, which can more smoothly draw out sodium hydrosulfide from the tank.

[0028] Specifically, the first suction port 221 is located on the side of the first suction pipe 220 away from the bottom of the sodium hydrosulfide tank; the second suction port 231 is located on the side of the second suction pipe 230 away from the bottom of the sodium hydrosulfide tank.

[0029] The following is an explanation of the modification process:

[0030] S100. At the unloading port inside the original tank, an extended Y-shaped pipeline is installed, the diameter of which is the same as that of the loading pump inlet pipeline.

[0031] On the upper side of the two branch pipes of the S200 and Y-shaped pipeline, the openings face upwards to prevent crystal deposition and blockage of the suction inlet. Three round holes are opened at equal intervals, with the diameter of the openings slightly smaller than the diameter of the pipeline, to serve as the suction inlets of the branch pipelines. The ends of the Y-shaped branch pipes are not sealed.

[0032] S200: When the sediment height at the bottom of the tank exceeds 200mm, even if one or more openings on the Y-type loading pipeline 200 are blocked, the liquid can still enter the inlet of the loading pump 310 through the remaining unblocked openings, thus ensuring smooth loading.

[0033] See Figure 3 Furthermore, in one embodiment, a tee is provided on the external loading pipeline 300, and the tee is connected to the backwash pipeline 400, on which a backwash pump 410 is provided.

[0034] Furthermore, based on the above embodiment, a second check valve 420 is provided downstream of the backflushing pump 410 on the backflushing line connection 400. A third valve 430 is provided downstream of the second check valve 420 on the backflushing line connection 400.

[0035] After a period of use, if most or all of the suction holes of the Y-type loading pipeline 200 become blocked, the sodium hydrosulfide tank 10 can be emptied, the first valve 330 closed, the second check valve 420 and the third valve 430 opened, and the back flushing pipeline connection 400 is used to introduce flushing water in reverse. The reverse introduction of fluid can dissolve and flush out the crystals, thereby clearing the blocked suction holes.

[0036] Additionally, see Figure 4In an improved embodiment, the backwash line connection 400 can be connected to the upper part of the sodium hydrosulfide tank 10 via line 440 to backwash the sodium hydrosulfide in the upper part. A corresponding valve 441 is installed on the line 440. When the sodium hydrosulfide tank 10 is emptied, the valve 441 is closed and flushed with flushing water. When the inside of the sodium hydrosulfide tank 10 is not emptied, the sodium hydrosulfide concentrate is used for backwashing through the line 440 to avoid contaminating the material inside the tank.

[0037] In the description of this utility model, it should be understood that the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc., indicating the orientation or positional relationship are based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this utility model and simplifying the description, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model.

[0038] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one of that feature. In the description of this utility model, "a plurality of" means at least two, such as two, three, etc., unless otherwise explicitly specified.

[0039] In this utility model, unless otherwise explicitly specified and limited, the terms "installation," "connection," "joining," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components, unless otherwise explicitly limited. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0040] In this invention, unless otherwise explicitly specified and limited, "above" or "below" the second feature can mean that the first feature is in direct contact with the second feature, or that the first feature is in indirect contact through an intermediate medium. Furthermore, "above," "over," and "on top" of the second feature can mean that the first feature is directly above or diagonally above the second feature, or simply that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature can mean that the first feature is directly below or diagonally below the second feature, or simply that the first feature is at a lower horizontal level than the second feature. It should be noted that when an element is referred to as "fixed to" or "set on" another element, it can be directly on the other element or there may be an intermediate element present. When an element is considered to be "connected" to another element, it can be directly connected to the other element or there may be an intermediate element present. The terms "vertical," "horizontal," "above," "below," "left," "right," and similar expressions used herein are for illustrative purposes only and do not represent the only possible embodiments.

Claims

1. A pipeline system for preventing blockage by sediment deposits at the bottom of a sodium hydrosulfide tank, characterized in that: include A sodium hydrosulfide tank interface is provided at the bottom of the sodium hydrosulfide tank body, and the sodium hydrosulfide tank interface has a first port located inside the tank and a second port located outside the tank; The Y-shaped loading pipeline includes a connecting pipe, a first suction pipe and a second suction pipe arranged in a Y shape. The connecting pipe is connected to the first port. The first suction pipe has multiple first suction holes along its length. The second suction pipe has multiple second suction holes along its length. The Y-shaped loading pipeline is horizontally arranged inside the sodium hydrosulfide tank. An external loading pipeline has an inlet connected to the second port and an outlet connected to the loading interface of the transport vehicle. A loading pump is installed on the external loading pipeline, and a first check valve is installed at the outlet of the loading pump. A first valve is installed upstream of the loading pump on the external loading pipeline.

2. The pipeline system for preventing blockage by sediment at the bottom of a sodium hydrosulfide tank according to claim 1, characterized in that: A second valve is installed downstream of the loading pump on the external loading pipeline.

3. The pipeline system for preventing blockage by sediment at the bottom of a sodium hydrosulfide tank according to claim 1, characterized in that: One end of the first suction pipe is connected to the connecting pipe, and the other end of the first suction pipe is not sealed; one end of the second suction pipe is connected to the connecting pipe, and the other end of the second suction pipe is not sealed.

4. The pipeline system for preventing blockage by sediment at the bottom of a sodium hydrosulfide tank according to claim 1, characterized in that: The Y-shaped loading pipeline is 200mm from the bottom of the tank.

5. A pipeline system for preventing blockage by sediment at the bottom of a sodium hydrosulfide tank according to claim 1, characterized in that: The first suction port is located on the side of the first suction pipe away from the bottom of the sodium hydrosulfide tank; the second suction port is located on the side of the second suction pipe away from the bottom of the sodium hydrosulfide tank.

6. A pipeline system for preventing blockage by sediment deposits at the bottom of a sodium hydrosulfide tank according to any one of claims 1-5, characterized in that: A tee is installed on the external loading pipeline, and the tee is connected to a backwash pipeline, which is equipped with a backwash pump.

7. A pipeline system for preventing blockage by sediment at the bottom of a sodium hydrosulfide tank according to claim 6, characterized in that: A second check valve is provided downstream of the backflush pump on the backflush pipeline.

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