Portable ammonia water filling tail gas treatment device

Abstract

The utility model belongs to a portable ammonia water filling tail gas treatment device. Comprising a shell, the inner bottom of the shell is connected with a top filling opening of a tank car through a connecting unit, an ammonia water tail gas treatment unit is arranged in the shell, and a lifting lug used for lifting is arranged at the top of the shell; the device has the advantages of being simple in structure, convenient to install and use, environmentally friendly, capable of avoiding the risk of combustion explosion and capable of achieving ammonia gas recycling and reusing.

Description

TECHNICAL FIELD

[0001] The utility model belongs to ammonia water filling technical field, concretely is a portable ammonia water filling tail gas treatment device. BACKGROUND

[0002] Ammonia water is the aqueous solution of gaseous ammonia, colorless and transparent and has irritability. Ammonia water is volatile, and decomposes easily under light and heat. Ammonia water itself is not flammable and explosive liquid, and ammonia gas separated from water has strong pungent smell, certain irritability and corrosivity to human eyes, nose and skin, and combustion and explosion danger, and great pollution to environment.

[0003] At present, part of ammonia water filling tank truck does not set special ammonia water filling port and tail gas discharge port, but directly adopts atmospheric pressure open tank filling mode, that is, directly fills tank by crane pipe deeply into the filling port above tank truck. In order to ensure that filling is smooth, the tank truck is under atmospheric pressure, and a large amount of ammonia gas is discharged from another filling port, which is serious pollution to human body and environment, and does not meet the national emission standard. When ammonia vapor concentration in air reaches 15.7% to 27.4%, combustion and explosion will be caused by meeting spark; especially when oil exists, the combustion danger will be increased. At the same time, a large amount of ammonia gas volatilization not only reduces the concentration of ammonia water, but also causes ammonia gas resource waste, increases economic loss. UTILITY MODEL CONTENT

[0004] In order to make up for the above shortcomings, the utility model provides a portable ammonia water filling tail gas treatment device to solve the technical problems existing in the prior art.

[0005] The utility model adopts the technical scheme that:

[0006] A portable ammonia water filling tail gas treatment device, the device includes a shell, the inner bottom of the shell is connected with the top filling port of the tank truck through the connecting unit, the inside of the shell is equipped with an ammonia water tail gas treatment unit, and the top of the shell is equipped with an ear for lifting.

[0007] The utility model has the advantages that: the utility model is designed according to the structure form that the top of the existing ammonia water filling tank truck is provided with two top filling ports, one of the top filling ports is used to place an ammonia water filling crane pipe, the first end of the ammonia water filling crane pipe is connected with an ammonia water filling pipeline, when filling is needed, the device is placed on the top of the other top filling port by using a crane or a travelling crane to lift the cooperation ear, so that ammonia water tail gas dispersed from the top filling port is recycled and treated, ammonia gas recycling is realized under the premise of safety and environmental protection, and further, the utility model can be directly placed and used by lifting, and has the characteristics of convenient use.

[0008] Preferably, the connecting unit comprises a groove matching the outer profile of the top filling port, and the top of the groove is communicated with the inside of the shell through a float valve.

[0009] Preferably, a sealing washer is arranged between the groove and the top of the top filling port.

[0010] Preferably, the ammonia tail gas treatment unit comprises a spray pipe arranged at the upper part of the shell, and the spray pipe is uniformly provided with spray heads, and one side of the lower part of the shell is provided with an ammonia discharge port.

[0011] Preferably, the ammonia tail gas treatment unit comprises a demister arranged at the upper part of the spray pipe, and the shell at the upper part of the demister is provided with a vent.

[0012] Preferably, the ammonia discharge port is connected with an ammonia tank through a first quick connector, the outlet of the ammonia tank is connected with a tee joint through an ammonia pump, the second end of the tee joint is connected with an ammonia recycling device through a first valve, and the third end of the tee joint is connected with the spray pipe through a second valve and a second quick connector.

[0013] Preferably, the spray pipe is connected with a desalted water pipe through a second quick connector and a third valve.

[0014] Preferably, the other side of the lower part of the shell is provided with a sewage discharge port.

[0015] The portable ammonia filling tail gas treatment device prepared according to the above technical scheme is designed for the existing ammonia filling tank truck with two top filling ports, and the main purpose is to recycle and treat ammonia tail gas during the filling of ammonia. In addition, it can be conveniently installed by lifting to realize the characteristics of quickly replacing different tank trucks. Further, the groove in the utility model matches the outer profile of the top filling port, and the above design can conveniently place the utility model, and the utility model itself can be tightly combined with the top filling port by using its own weight. Meanwhile, the utility model is also provided with a quick connector to realize the quick connection between the utility model and the matched equipment, so as to avoid the problem that the installation of the utility model affects the filling efficiency. The utility model has the advantages of simple structure, convenient installation and use, environmental friendliness, avoidance of the risk of burning and explosion, and realization of ammonia recycling. BRIEF DESCRIPTION OF DRAWINGS

[0016] In order to more clearly illustrate the technical scheme in the embodiments of the utility model or the prior art, the drawings needed to be used in the embodiment or the prior art description will be briefly introduced below. Obviously, the drawings in the following description are only some embodiments of the utility model, and those skilled in the art can also obtain other drawings according to these drawings without creating any creative labor.

[0017] Figure 1 It is a structural schematic view of the utility model.

[0018] Figure 2 It is a working principle view of the utility model.

[0019] In the figure: 1, shell; 2, tank car; 3, top filling port; 4, lifting lug; 5, groove; 6, float valve; 7, sealing washer; 8, spray pipeline; 9, spray head; 10, ammonia water discharge port; 11, demister; 12, vent; 13, ammonia water tank; 14, ammonia water pump; 15, tee; 16, ammonia water recycling device; 17, desalted water pipeline; 18, first quick connector; 19, second quick connector; 20, first valve; 21, second valve; 22, third valve; 23, sewage discharge port. DETAILED DESCRIPTION

[0020] The technical solutions in the embodiments of the utility model will be clearly and completely described below with reference to the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor fall within the protection scope of the utility model.

[0021] The following will be combined with the drawings Figure 1 、 2 The utility model discloses a portable ammonia water filling tail gas treatment device, which comprises a shell 1, the inner bottom of the shell 1 is connected with the top filling port 3 of a tank car 2 through a connecting unit, an ammonia water tail gas treatment unit is arranged in the shell 1, and a lifting lug 4 for lifting is arranged on the top of the shell 1. The utility model can be matched with an ammonia water filling tank car to realize absorption and treatment of ammonia water tail gas during ammonia water filling, avoid diffusion into the atmosphere to cause safety hazards and environmental pollution defects, and also realize recycling of ammonia gas. Further, the utility model can be conveniently lifted through the lifting lug 4, and the utility model is connected with the top filling port 3 through the lifting lug 4.

[0022] Further, the connecting unit comprises a groove 5 matched with the outer contour of the top filling opening 3, the top of the groove 5 is communicated with the inside of the shell 1 through a float valve 6. By setting the groove 5, the connection of the two can be realized by sleeving the outside of the top filling opening 3, so that the recovery of the ammonia water tail gas is realized; further, by setting the float valve 6, the ammonia water tail gas can be discharged into the shell 1, and the absorption liquid for absorbing ammonia gas is prevented from entering the top filling opening 3; at the same time, through the above structure, the groove 5 and the top of the top filling opening 3 can be tightly combined by the gravity of the utility model itself.

[0023] Further, the groove 5 and the top of the top filling opening 3 are provided with a sealing gasket 7. The sealing gasket 7 in the utility model can realize the sealing between the groove 5 and the top filling opening 3, and can play a buffering role when the utility model is hoisted and placed on the top of the top filling opening 3; the sealing gasket 7 in the utility model is preferably made of rubber.

[0024] Further, the ammonia water tail gas treatment unit comprises a spraying pipeline 8 arranged at the upper part of the shell 1, the spraying pipeline 8 is uniformly provided with a spraying head 9, and one side of the lower part of the shell 1 is provided with an ammonia water discharge port 10. Through the above setting, the absorption liquid can be uniformly sprayed from top to bottom, so that the ammonia water tail gas is absorbed, and the absorption liquid after absorbing the tail gas can be discharged through the ammonia water discharge port 10; at the same time, the structure cooperated with the above-mentioned groove 5 can prevent the absorption liquid from entering the top filling opening 3.

[0025] Further, the ammonia water tail gas treatment unit comprises a defoaming device 11 arranged at the upper part of the spraying pipeline 8, and the shell 1 at the upper part of the defoaming device 11 is provided with a vent 12. The gas phase not absorbed after the absorption liquid can remove the excess water in the tail gas through the defoaming device 11, and then be discharged through the vent 12.

[0026] Further, the ammonia water discharge port 10 is connected with an ammonia water tank 13 through a first quick connector 18, the outlet of the ammonia water tank 13 is connected with a three-way pipe 15 through an ammonia water pump 14, the second end of the three-way pipe 15 is connected with an ammonia water recycling device 16 through a first valve 20, and the third end of the three-way pipe 15 is connected with the spraying pipeline 8 through a second valve 21 and a second quick connector 19. The absorption liquid in the utility model is preferably desalted water, which is absorbed by the ammonia water tail gas and then enters the ammonia water tank 13, and is pressurized by the ammonia water pump 14 and then sent into the spraying pipeline 8 to realize the purpose of recycling and spraying the tail gas; when the concentration of the ammonia water reaches a preset value, it can be pressurized by the ammonia water pump 14 and delivered to the ammonia water recycling device 16 to realize recycling and reuse; the utility model adopts a quick connector form, which can realize the quick connection of the above-mentioned supporting equipment after the utility model is connected with the ammonia water filling tank car, so as to realize the characteristics of saving the installation time to the maximum extent and ensuring the filling efficiency.

[0027] Further, the spray pipeline 8 is connected with the desalted water pipeline 17 through the second quick connector 19 and the third valve 22. The desalted water pipeline 17 in the utility model is used for supplementing desalted water to the spray pipeline 8, especially when the ammonia water pump 14 pressurizes to transport ammonia water to the ammonia water recycling device 16, the third valve 22 needs to be opened to realize timely supplement and maintain the normal operation characteristics of the utility model.

[0028] Further, the other side of the lower part of the shell 1 is provided with a sewage discharge port 23. The sewage discharge port 23 is used for discharging sewage for cleaning the inside of the shell 1.

[0029] The specific working process of the utility model is as follows: when the utility model is used, the utility model is placed on one of the top filling ports 3 through the lifting equipment connecting lifting lugs 4, and the first quick connector 18 and the second quick connector 19 are quickly connected with the related matched devices. When the above preparation is completed, the ammonia water filling crane pipe connected with the ammonia water filling pipeline is placed in the other top filling port 3, and the ammonia water in the ammonia water filling pipeline enters the tank car through the ammonia water filling crane pipe to realize filling. The tail gas of the ammonia water in the tank car enters the shell 1 through the top filling port 3 and the float valve 6, the absorption liquid in the spray pipeline 8 is uniformly sprayed in the shell 1 through the spray head 9, the absorption liquid goes down while the tail gas goes up, and the two counter-currently contact, the main principle is NH3+H2O=NH3·H2O, and low-concentration ammonia water is formed. The low-concentration ammonia water enters the ammonia water tank 13 through the ammonia water discharge port 10, and the low-concentration ammonia water in the ammonia water tank 13 is pressurized by the ammonia water pump 14 and enters the spray pipeline 8 through the second valve 21 and the second quick connector 19 to recycle and absorb ammonia gas. When the ammonia water is enriched to a certain concentration, the second valve 21 is closed, the first valve 20 is opened, and the ammonia water enters the ammonia water recycling device 16 for use. At the same time, the third valve 22 is opened, the desalted water in the desalted water pipeline 17 enters the spray pipeline 8 to continue to absorb ammonia gas and form low-concentration ammonia water, and the above-mentioned water supplementing process is repeated. The tail gas in the shell 1 that is not absorbed by the absorption liquid is discharged through the vent 12 after passing through the demister 11; by setting the utility model, the ammonia in the ammonia water filling tail gas can be absorbed, so that the ammonia content in the tail gas is less than 30mg / m 3 , the ammonia content in the vent gas is reduced, the environmental pollution is reduced, low-concentration ammonia water is recovered, the waste of ammonia gas resources is reduced, and the safety risk is reduced.

[0030] The basic principle, main features and advantages of the present application are shown and described above. Those skilled in the art should understand that the present application is not limited by the above examples, and the above examples and descriptions in the specification are only to illustrate the principles of the present application. Without departing from the spirit and scope of the present application, various changes and improvements can be made to the present application, and these changes and improvements all fall within the scope of the claimed present application.

Claims

1. A portable ammonia filling tail gas treatment device, characterized in that: The device includes a housing (1), the bottom of which is connected to the top filling port (3) of the tank truck (2) via a connecting unit, the interior of which is provided with an ammonia tail gas treatment unit, and the top of which is provided with a lifting lug (4) for hoisting.

2. The portable ammonia filling tail gas treatment device according to claim 1, characterized in that: The connecting unit includes a groove (5) that is adapted to the outer contour of the top filling port (3), and the top of the groove (5) is connected to the interior of the housing (1) through a float valve (6).

3. The portable ammonia filling tail gas treatment device according to claim 2, characterized in that: A sealing gasket (7) is provided between the top of the groove (5) and the top of the top filling port (3).

4. The portable ammonia filling tail gas treatment device according to claim 1, characterized in that: The ammonia tail gas treatment unit includes a spray pipe (8) located in the upper part of the shell (1), spray nozzles (9) are evenly distributed on the spray pipe (8), and an ammonia discharge port (10) is provided on one side of the lower part of the shell (1).

5. The portable ammonia filling tail gas treatment device according to claim 4, characterized in that: The ammonia tail gas treatment unit includes a demister (11) installed on the upper part of the spray pipe (8), and the shell (1) on the upper part of the demister (11) has a vent (12).

6. The portable ammonia filling tail gas treatment device according to claim 4, characterized in that: The ammonia discharge port (10) is connected to the ammonia tank (13) via the first quick connector (18). The outlet of the ammonia tank (13) is connected to the tee (15) via the ammonia pump (14). The second end of the tee (15) is connected to the ammonia recovery and utilization device (16) via the first valve (20). The third end of the tee (15) is connected to the spray pipe (8) via the second valve (21) and the second quick connector (19).

7. A portable ammonia filling tail gas treatment device according to claim 6, characterized in that: The spray pipe (8) is connected to the demineralized water pipe (17) via a second quick-connect plug (19) and a third valve (22).

8. The portable ammonia filling tail gas treatment device according to claim 4, characterized in that: A sewage discharge port (23) is provided on the other side of the lower part of the shell (1).

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