Process device for absorbing volatile substances

Abstract

The utility model relates to the field of environmental protection, and discloses a process device for absorbing volatile substances, which comprises a gas collecting hood, a gas collecting hose, a gas collecting valve, a deep suction groove, a deep suction device, a deep suction diffusion pipe, a blow-down pipe, an overflow pipe, an absorption groove, a primary suction device, a primary suction diffusion pipe, a primary suction blow-down pipe, a water replenishing valve, an absorption pump, a pump inlet pipe, a return valve, a liquid pouring valve, a gas collecting pipe and a slow release device, volatile gas overflowing from a medicament storage tank or a tank car sequentially passes through the gas collecting pipe, the slow release device, the primary suction device, the primary suction diffusion pipe, the primary suction blow-down pipe, the deep suction device, the deep suction diffusion pipe and the blow-down pipe to complete absorption and purification. By arranging the gas collecting pipe, the slow release device, the primary suction device, the primary suction diffusion pipe, the primary suction blow-down pipe, the deep suction device, the deep suction diffusion pipe and the blow-down pipe, saturated liquid can be absorbed and can be completely recycled, and no waste liquid is generated; meanwhile, the absorbent is low in price and easy to obtain, the comprehensive operation cost is low, and the cost is reduced; in addition, the structure is compact, and the absorption efficiency is high.

Description

Technical Field

[0001] The present application relates to the field of environmental protection, and in particular to a process device for absorbing volatile substances. Background Art

[0002] Methanol, liquid ammonia, and ammonia water have a wide range of application scenarios, and the number of storage tanks is in the millions. Currently, ammonia water storage tanks have been deployed in companies producing over a million industrial kilns. Usually, each industrial kiln requires 1-3 ammonia water storage tanks.

[0003] The above information disclosed in this background technology is only used to increase the understanding of the background technology of this application. Therefore, it may contain information that does not constitute the prior art known to ordinary technicians in this field. Utility Model Content

[0004] In order to solve the above-mentioned problems, the present application provides a process device for absorbing volatile substances, which can effectively absorb toxic and harmful components released by volatile liquids during loading and unloading processes and normal storage processes, and can also be reused.

[0005] The following technical solutions are adopted:

[0006] A process device for absorbing volatile substances includes a gas collection hood, a gas collection hose, a gas collection valve, a deep suction tank, a deep suction device, a deep suction diffuser, a vent pipe, an overflow pipe, an absorption tank, an initial suction device, an initial suction diffuser, an initial suction vent pipe, a water supply valve, an absorption pump, a pump inlet pipe, a reflux valve, a liquid discharge valve, a gas collection pipe, and a slow release device. Volatile gases from a pharmaceutical storage tank or overflowing from a tank truck are absorbed and purified through the gas collection pipe, slow release device, initial suction device, initial suction diffuser, initial suction vent pipe, deep suction device, deep suction diffuser, and vent pipe. The absorbed saturated liquid is periodically returned to the pharmaceutical storage tank through the liquid discharge valve for reuse.

[0007] In the technical solution of the present invention: the initial suction device adopts a Wenqiuli structure, the reflux valve connects the absorption pump outlet pipe with one of the horizontal ports of the initial suction device, and the middle throat clamp of the initial suction device is connected to the slow release device through a pipeline.

[0008] Furthermore, another port of the primary suction device is connected to the primary suction diffusion pipe.

[0009] Furthermore, the initial suction diffusion tube is spirally installed downward, and the lowermost part of the initial suction diffusion tube extends into the initial suction device 5-80 cm below the liquid level.

[0010] In the technical solution of the present utility model: the upper part of the deep suction trough is connected to the atmosphere through a vent pipe, and there are two ways to connect the deep suction device to the deep suction trough. The deep suction device and the deep suction trough are an integrated structure, and the deep suction device is directly embedded into the deep suction trough from the upper part of the deep suction trough, or the deep suction device and the deep suction trough are separated from each other and connected to the deep suction trough through a pipe.

[0011] In the technical solution of the utility model, the deep inhaler is a cylindrical cavity, and the internal clearance volume equivalent to the deep inhaler is 0.2-8 times the maximum minute flow rate of the gas passing through the gas collecting pipe and the gas collecting hood.

[0012] Furthermore, the aspect ratio of the deep aspirator is between 0.5 and 5, and a filler for increasing gas-liquid mass transfer is arranged inside the cylindrical cavity.

[0013] Furthermore, the lower part of the deep suction device is connected to the deep suction diffusion pipe, and the lowermost part of the deep suction diffusion pipe extends into the deep suction tank 2-50 cm below the liquid level.

[0014] In summary, this application has the following beneficial technical effects:

[0015] By setting up a gas collecting pipe, a slow release device, an initial suction device, an initial suction diffusion tube, an initial suction venting tube, a deep suction device, a deep suction diffusion tube, and a venting tube, the saturated liquid can be absorbed and reused in its entirety without generating any waste liquid. At the same time, the absorbent is inexpensive and readily available, and the overall operating costs are low, thereby reducing costs. Furthermore, the structure of the design of this application is compact, and the absorption efficiency is high, which can effectively reduce the harm of the agent to the ambient atmosphere. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] The accompanying drawings are used to provide a further understanding of the present invention and constitute a part of the specification. Together with the embodiments of the present invention, they are used to explain the present invention and do not constitute a limitation of the present invention. In the accompanying drawings:

[0017] Figure 1 It is a schematic diagram of an embodiment of the utility model;

[0018] Among them, 1 is a tank truck, 11 is a gas collecting hood, 12 is a gas collecting hose, 13 is a gas collecting valve; 2 is a deep suction tank, 21 is a deep suction device, 22 is a deep suction diffuser, 23 is a vent pipe, 24 is an overflow pipe; 3 is an absorption tank, 31 is a primary suction device, 32 is a primary suction diffuser, 33 is a primary suction vent pipe, 34 is a water supply valve; 4 is an absorption pump, 41 is a pump inlet pipe, 42 is a reflux valve, 43 is a liquid pouring valve; 5 is a chemical storage tank, 51 is a gas collecting pipe, 52 is a slow release device. DETAILED DESCRIPTION

[0019] The following is combined with Figure 1 This application is described in further detail.

[0020] The present application discloses a process device for absorbing volatile substances, referring to Figure 1, including an air collecting hood 11, the air collecting hood 11 is connected to the slow release device 52 through an air collecting hose 12 and an air collecting valve 13, the medicine storage tank 5 is connected to the slow release device 52 through an air collecting pipe 51, the slow release device 52 is connected to the initial suction device 31 and the initial suction diffusion pipe 32 located inside the absorption tank 3, the absorption tank 3 is connected to the deep suction diffusion pipe 22 through the initial suction vent pipe 33 and the deep suction device 21, the deep suction tank 2 is connected to the absorption tank 3 through the overflow pipe 24, the lower part of the absorption tank 3 is connected to the absorption pump 4 through the pump inlet pipe 41, the absorption pump 4 is connected to the initial suction device 31 through the reflux valve 42, and is connected to the medicine storage tank 5 through the liquid pouring valve 43.

[0021] The primary suction device 31 adopts a Wenqiuli structure, and the reflux valve 42 connects the outlet pipe of the absorption pump 4 to one of the horizontal ports of the primary suction device 31. The middle throat clamp of the primary suction device 31 is connected to the slow release device 52 through a pipeline.

[0022] Furthermore, another port of the primary suction device 31 is connected to the primary suction diffusion pipe 32 .

[0023] Furthermore, the primary suction diffusion pipe 32 is spirally installed and faces downward, and the lowermost part of the primary suction diffusion pipe 32 extends into the primary suction device 31 5-80 cm below the liquid level.

[0024] The upper part of the deep suction trough 2 is connected to the atmosphere through a vent pipe 23. There are two ways to connect the deep suction device 21 to the deep suction trough 2. The deep suction device 21 and the deep suction trough 2 are an integrated structure. The deep suction device 21 is directly embedded into the deep suction trough 2 from the upper part of the deep suction trough 2, or the deep suction device 21 and the deep suction trough 2 are separated from each other and connected to the deep suction trough 2 through a pipe.

[0025] The deep inhaler 21 is a section of a cylinder, and the internal clearance volume thereof is equivalent to 0.2-8 times the maximum minute flow rate of the gas passing through the gas collecting pipe 51 and the gas collecting hood 11.

[0026] Furthermore, the aspect ratio of the deep inhaler 21 is between 0.5 and 5.

[0027] Furthermore, the lower portion of the deep suction device 21 is connected to the deep suction diffusion pipe 22 , and the lowermost portion of the deep suction diffusion pipe 22 extends into the deep suction tank 2 2-50 cm below the liquid level.

[0028] The operating principle is as follows: Volatile gases released from the tank truck 1 pass through the gas collection hood 11, the gas collection hose 12, and the gas collection valve 13, converge into the gas collection pipe 51, and then mix with the volatile gases released from the reagent storage tank 5 in the slow release device 52. The volatile gases leaving the slow release device 52 are then drawn by pressure through the primary inhaler 31 and the primary inhalation diffuser 32, and enter the upper part of the absorption tank 3.

[0029] In the primary suction device 31 and the primary suction diffusion pipe 32, the gas is absorbed by the absorption liquid from the absorption pump 4. The residual gas is completely absorbed by the primary suction diffusion pipe 32, the deep suction device 21, and the deep suction diffusion pipe 22 in sequence. The non-condensable gas gathers at the top of the deep suction tank 2 and is then discharged into the atmosphere through the vent pipe 23.

[0030] The saturated absorption liquid absorbed by the absorption tank 3 is transferred to the reagent storage tank 5 through the pump inlet pipe 41, the absorption pump 4, the liquid pouring valve 43 and other paths in sequence. The insufficient absorption liquid is replenished through the water replenishment valve 34, and the absorption liquid is replenished to the absorption tank 3 through the deep absorption device 21, the deep absorption diffusion pipe 22, the deep absorption tank 2, and the overflow pipe 24.

[0031] Finally, a few points should be explained: First, in the description of this application, it should be noted that, unless otherwise specified or limited, the terms "mounted," "connected," and "connected" should be understood in a broad sense, and may refer to mechanical or electrical connections, internal communication between two components, or direct connection. "Up," "down," "left," and "right" are only used to indicate relative positional relationships. When the absolute positions of the objects being described change, the relative positional relationships may also change.

[0032] Secondly: The drawings of the embodiments disclosed in this utility model only involve structures related to the embodiments disclosed in this utility model. Other structures can refer to common designs. In the absence of conflicts, the same embodiment and different embodiments of the utility model can be combined with each other.

[0033] Finally: The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

[0034] The above are all preferred embodiments of the present application, and are not intended to limit the scope of protection of the present application. Therefore, any equivalent changes made based on the structure, shape, and principle of the present application should be included in the scope of protection of the present application.

Claims

1. A process device for absorbing volatile substances, characterized in that: The invention comprises a deep suction tank (2), a deep suction device (21), a deep suction diffusion pipe (22), an absorption tank (3), an initial suction device (31), an initial suction diffusion pipe (32), an initial suction vent pipe (33), a reflux valve (42) and a slow release device (52). Volatile gas overflowing from a pharmaceutical storage tank (5) or a tank truck (1) passes through a gas collecting pipe (51), a slow release device (52), an initial suction device (31), an initial suction diffusion pipe (32), an initial suction vent pipe (33), a deep suction device (21), a deep suction diffusion pipe (22) and a vent pipe (23) in sequence for absorption and purification. Absorbed saturated liquid is regularly returned to the pharmaceutical storage tank (5) through a liquid return valve (43) for reuse.

2. A process device for absorbing volatile substances according to claim 1, characterized in that: The primary suction device (31) adopts a Wenqiuli structure, the return valve (42) connects the outlet pipe of the absorption pump (4) and one of the ports of the primary suction device (31), and the middle throat clamp of the primary suction device (31) is connected to the slow release device (52) through a pipeline.

3. A process device for absorbing volatile substances according to claim 2, characterized in that: The other port of the primary suction device (31) is connected to the primary suction diffusion pipe (32).

4. A process device for absorbing volatile substances according to any one of claims 1 to 3, characterized in that: The primary suction diffusion tube (32) is spirally installed and faces downward, and the lowermost part of the primary suction diffusion tube (32) extends into the primary suction device (31) 5-80 cm below the liquid level.

5. The process device for absorbing volatile substances according to claim 1, characterized in that: The deep inhaler (21) is a section of a cylinder, and the internal clearance volume equivalent is 0.2-8 times the maximum minute flow rate of the gas passing through the gas collecting pipe (51) and the gas collecting hood (11).

6. A process device for absorbing volatile substances according to claim 5, characterized in that: The aspect ratio of the deep aspirator (21) is between 0.5 and 5.

7. A process device for absorbing volatile substances according to claim 1 or 5, characterized in that: The lower part of the deep suction device (21) is connected to the deep suction diffusion pipe (22), and the lowermost part of the deep suction diffusion pipe (22) extends into the deep suction tank (2) 2-50 cm below the liquid level.

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