Sulfuric acid conveying equipment

Abstract

The utility model relates to the technical field of corrosive liquid conveying equipment, in particular to sulfuric acid conveying equipment. The sulfuric acid conveying equipment comprises a sulfuric acid conveying pump and a degassing device arranged at the upstream of the sulfuric acid conveying pump; a liquid inlet pipeline and a liquid outlet pipeline are respectively arranged at the front end and the rear end of the degassing device; the degassing device comprises a shell and a partition plate assembly arranged in the shell; and an exhaust pipe and a fan are arranged at the top of the shell. The sulfuric acid conveying equipment can be used as pretreatment equipment to remove gas in a sulfuric acid solution entering the sulfuric acid conveying pump, so that the influence of gas mixing on normal operation of the sulfuric acid conveying pump is reduced, and the service life of the sulfuric acid conveying pump is prolonged.

Description

TECHNICAL FIELD

[0001] The utility model relates to corrosive liquid conveying equipment technical field, especially a kind of sulfuric acid conveying equipment. BACKGROUND

[0002] In the conveying process of corrosive liquid (such as sulfuric acid solution), special corrosion-resistant conveying pump needs to be used. The inside of these conveying pumps is in contact with sulfuric acid using corrosion-resistant materials, and the outside uses steel as the shell. In actual use, when the sulfuric acid of tank car is transferred to the factory storage tank, part of air is often sucked into the pipeline. When there is too much air in the pipeline, it will cause unstable pressure of the pipeline and cause vibration of the conveying pump. After a long time, it will cause the structure of the conveying pump to loosen and accelerate the friction loss of the conveying pump, reducing its service life, so that the conveying pump will have problems such as liquid leakage.

[0003] It can be seen that the prior art needs to be improved and improved. UTILITY MODEL CONTENT

[0004] In view of the shortcomings of the prior art, the purpose of the utility model is to provide a sulfuric acid conveying equipment, to solve the technical problem of a large amount of air in the conveying pipeline when transferring sulfuric acid in the tank car in the prior art.

[0005] In order to achieve the above purpose, the utility model adopts the following technical scheme:

[0006] A sulfuric acid conveying equipment, comprising a sulfuric acid conveying pump and a degassing device arranged upstream of the sulfuric acid conveying pump; the degassing device is provided with a liquid inlet pipeline and a liquid outlet pipeline at its front and rear ends respectively; the degassing device comprises a shell and a partition plate assembly arranged in the shell; the top of the shell is provided with an exhaust pipe and a fan.

[0007] The sulfuric acid conveying equipment, wherein the partition plate assembly comprises a first partition plate, two second partition plates and a third partition plate arranged in sequence along the length direction of the degassing device; a cavity is arranged in the shell; the first partition plate and the third partition plate are arranged in the middle part of the cavity; liquid passing openings are arranged between the two ends of the first partition plate and the third partition plate and the cavity wall; one side of each of the two second partition plates is fixedly connected with the cavity wall; a liquid passing opening is arranged between the two second partition plates.

[0008] The sulfuric acid conveying equipment, wherein the bottom of the cavity is provided with a bottom plate; the bottom plate extends downwardly and obliquely from one end of the liquid inlet pipeline to the other end of the liquid outlet pipeline; the partition plate assembly is fixedly connected with the bottom plate.

[0009] The sulfuric acid conveying equipment, wherein the height of the pipeline opening of the liquid outlet pipeline is lower than that of the liquid inlet pipeline.

[0010] The sulfuric acid conveying device further comprises a pressure relief valve arranged on the top of the shell, and the pressure relief valve is connected with the top of the cavity through a pressure relief pipeline.

[0011] The sulfuric acid conveying device further comprises a corrosion-resistant layer arranged in the shell, and a protective layer arranged on the outer side of the shell.

[0012] The sulfuric acid conveying device further comprises a control device, a first liquid level sensor arranged in the shell and located above the pipeline opening of the liquid outlet pipeline, and the first liquid level sensor and the sulfuric acid conveying pump are electrically connected with the control device.

[0013] The sulfuric acid conveying device further comprises a second liquid level sensor arranged on the top of the cavity and a liquid inlet valve arranged on the liquid inlet pipeline, and the second liquid level sensor and the liquid inlet valve are electrically connected with the control device.

[0014] The sulfuric acid conveying device provided by the utility model has the advantages that the gas removal device is arranged upstream of the sulfuric acid conveying pump, so that the sulfuric acid transferred from the tank car first passes through the gas removal device, the air mixed in the sulfuric acid is reduced, and the subsequent sulfuric acid conveying pump runs more stably, thereby prolonging the service life of the sulfuric acid conveying pump. BRIEF DESCRIPTION OF DRAWINGS

[0015] Figure 1 It is a structural schematic view of the sulfuric acid conveying device.

[0016] Figure 2 It is a structural schematic view of the gas removal device.

[0017] Main element symbol explanation: 1-sulfuric acid conveying pump, 2-gas removal device, 21-liquid inlet pipeline, 22-liquid outlet pipeline, 23-shell, 24-baffle assembly, 25-exhaust pipe, 26-fan, 241-first baffle, 242-second baffle, 243-third baffle, 27-bottom plate, 28-pressure relief valve, 29-pressure relief pipeline, 231-corrosion-resistant layer, 30-first liquid level sensor, 31-control device, 32-second liquid level sensor, 33-liquid inlet valve. DETAILED DESCRIPTION

[0018] The utility model provides a sulfuric acid conveying device, in order to make the purpose, technical scheme and effect of the utility model more clear, explicit, the following refers to the drawing and raises the embodiment to this utility model further detailed explanation. It should be understood that the specific embodiments described here are only used to explain the utility model, and are not used to limit the utility model.

[0019] In the description of the utility model, it is necessary to understand that the terms "upper", "lower", "left", "right" and the like indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the utility model and simplifying the description, and do not indicate or imply that the indicated device or element must have a particular orientation, and a particular orientation configuration and operation, therefore, it cannot be understood as a limitation on the utility model. In addition, "first", "second" are only for the purpose of description, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features limited by "first", "second" can explicitly or implicitly include one or more features. In the description of the utility model, "a plurality of" means two or more, unless otherwise stated.

[0020] Please refer to Figure 1 The utility model provides a kind of sulfuric acid conveying equipment, including sulfuric acid conveying pump 1 and the degassing device 2 being arranged in the upstream of sulfuric acid conveying pump 1;The front and rear ends of the degassing device 2 are provided with liquid inlet pipeline 21 and liquid outlet pipeline 22 respectively;The degassing device 2 includes shell 23 and the baffle assembly 24 being arranged in shell 23;The top of the shell 23 is provided with exhaust pipe 25 and fan 26.

[0021] Specifically, baffle assembly 24 is used to prolong the flow time of solution in shell 23, the top of shell 23 is communicated with the outside world, when the solution mixed with a large amount of gas enters degassing device 2, due to the cross-sectional area becomes larger, in addition to the effect of baffle assembly 24, the flow speed of solution slows down, let the gas in solution have enough time to separate from solution, and not enter liquid outlet pipeline 22.In addition, fan 26 can form negative pressure in the top of shell 23, accelerate the gas separation in solution, so that sulfuric acid solution in liquid outlet pipeline 22 will not contain a large amount of gas.

[0022] Please refer to Figure 2 In one embodiment, the baffle assembly 24 includes a first baffle 241, two second baffles 242 and a third baffle 243 arranged in sequence along the length direction of the degassing device 2;The shell 23 is provided with a cavity;The first baffle 241 and the third baffle 243 are arranged in the middle part of the cavity;The two ends of the first baffle 241 and the third baffle 243 are provided with liquid passing openings between the cavity wall;One side of the two second baffles 242 is fixedly connected with the cavity wall;The two second baffles 242 are provided with a liquid passing opening between them. Specifically, after entering the cavity, the sulfuric acid solution will pass the first baffle 241, the second baffle 242 and the third baffle 243 in sequence, so that the flow time in the cavity will be longer, and in the collision process of sulfuric acid solution and baffle, it is also helpful for gas to separate from solution.

[0023] Please refer to Figure 1In one embodiment, the bottom of the cavity is provided with a bottom plate 27; the bottom plate 27 extends downwardly from one end of the liquid inlet pipe 21 to the other end of the liquid outlet pipe 22; and the baffle assembly 24 is fixedly connected to the bottom plate 27. The bottom plate 27 can reduce the residual sulfuric acid solution in the cavity, and make the residual sulfuric acid solution gather on the side close to the liquid outlet pipe 22.

[0024] Referring to Figure 1 In one embodiment, the height of the pipe opening of the liquid outlet pipe 22 is lower than that of the liquid inlet pipe 21. After the gas in the solution enters the degassing device 2, the gas moves upward, and the pipe opening of the liquid outlet pipe 22 is lower than that of the liquid inlet pipe 21, which can effectively reduce the gas entering the liquid outlet pipe 22.

[0025] Referring to Figure 1 In one embodiment, the sulfuric acid conveying device further comprises a pressure relief valve 28 arranged on the top of the shell 23; and the pressure relief valve 28 is connected to the top of the cavity through a pressure relief pipe 29. In order to avoid the suction of the fan 26 being too strong and causing the solution in the cavity to be sucked out, the pressure relief valve 28 is arranged in the embodiment. When the air pressure in the cavity is lower than a certain value, the pressure relief valve 28 is opened, and the external gas enters the cavity.

[0026] Referring to Figure 1 In one embodiment, the inside of the shell 23 is provided with a corrosion-resistant layer 231; and the outside of the shell 23 is provided with a protective layer. Specifically, the corrosion-resistant layer 231 can be made of polytetrafluoroethylene. The protective layer can be made of stainless steel.

[0027] Referring to Figure 1 In one embodiment, the sulfuric acid conveying device further comprises a control device 31 and a first liquid level sensor 30; the first liquid level sensor 30 is arranged in the shell 23 and located above the pipe opening of the liquid outlet pipe 22; and the first liquid level sensor 30 and the sulfuric acid conveying pump 1 are electrically connected to the control device 31. Specifically, when the first liquid level sensor 30 detects that the liquid level reaches the lower limit, the control device 31 controls the sulfuric acid conveying pump 1 to stop running, so as to avoid the gas being sucked in.

[0028] Referring to Figure 1 In one embodiment, the sulfuric acid conveying device further comprises a second liquid level sensor 32 and a liquid inlet valve 33; the second liquid level sensor 32 is arranged on the top of the cavity; and the liquid inlet valve 33 is arranged on the liquid inlet pipe 21; and the second liquid level sensor 32 and the liquid inlet valve 33 are electrically connected to the control device 31. The second liquid level sensor 32 is used to avoid the liquid level in the cavity being too high to cause the sulfuric acid solution to overflow. When it is detected that the liquid level reaches the upper limit, the control device 31 controls the liquid inlet valve 33 to be closed.

[0029] In summary, the utility model discloses a setting gas removal device 2, utilize the baffle assembly 24 in gas removal device 2 has prolonged the flow time of sulfuric acid solution in the casing 23, and utilize the casing 23 of bigger space slows down the flow rate of sulfuric acid solution, lets the gas in it can have sufficient time from solution separation, in addition, gas removal device 2 still through fan 26 accelerates the discharge of gas, thereby can effectively avoid the sulfuric acid solution that enters sulfuric acid delivery pump 1 contains too much gas.

[0030] It can be understood that for those skilled in the art, the technical scheme and the utility model concept of the utility model can be replaced or changed equivalently, and all these changes or replacements shall belong to the protection scope of the claims attached to the utility model.

Claims

1. A sulfuric acid delivery apparatus, characterized by, The device comprises a sulfuric acid delivery pump and a degassing device arranged upstream of the sulfuric acid delivery pump; the degassing device is provided with an inlet pipe and an outlet pipe at its front and back ends respectively; the degassing device comprises a shell and a baffle assembly arranged in the shell; the top of the shell is provided with an exhaust pipe and a fan.

2. The sulfuric acid delivery apparatus of claim 1, wherein, The baffle assembly comprises a first baffle, two second baffles and a third baffle arranged in sequence along the length direction of the degassing device. The shell is provided with a cavity; the first baffle and the third baffle are arranged in the middle of the cavity; the two ends of the first baffle and the third baffle are provided with liquid passing openings between the cavity wall; one side of each of the two second baffles is fixedly connected with the cavity wall; the two second baffles are provided with a liquid passing opening therebetween.

3. The sulfuric acid delivery apparatus of claim 2, wherein, The bottom of the cavity is provided with a bottom plate; the bottom plate extends downwardly and obliquely from one end of the inlet pipe to the other end of the outlet pipe; the baffle assembly is fixedly connected with the bottom plate.

4. The sulfuric acid delivery apparatus of claim 3, wherein, The height of the outlet pipe is lower than that of the inlet pipe.

5. The sulfuric acid delivery apparatus of claim 2, wherein, The shell is provided with a pressure relief valve at the top; the pressure relief valve is connected with the top of the cavity through a pressure relief pipe.

6. The sulfuric acid delivery apparatus of claim 1, wherein, The inside of the shell is provided with a corrosion-resistant layer; the outside of the shell is provided with a protective layer.

7. The sulfuric acid delivery apparatus of claim 2, wherein, The device further comprises a control device, a first liquid level sensor, the first liquid level sensor being arranged in the shell and above the outlet pipe; the first liquid level sensor and the sulfuric acid delivery pump are electrically connected with the control device respectively.

8. The sulfuric acid delivery apparatus of claim 7, wherein, The device further comprises a second liquid level sensor and an inlet valve; the second liquid level sensor is arranged at the top of the cavity, and the inlet valve is arranged on the inlet pipe; the second liquid level sensor and the inlet valve are electrically connected with the control device.

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