CN219407834U - System for recycling material tail gas and steam condensate of inner floating roof storage tank - Google Patents
System for recycling material tail gas and steam condensate of inner floating roof storage tank Download PDFInfo
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- CN219407834U CN219407834U CN202320713162.4U CN202320713162U CN219407834U CN 219407834 U CN219407834 U CN 219407834U CN 202320713162 U CN202320713162 U CN 202320713162U CN 219407834 U CN219407834 U CN 219407834U
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Abstract
The utility model provides a system for recycling material tail gas and steam condensate of an inner floating roof storage tank, which comprises a mother tank, wherein a condenser is arranged above the mother tank, the top of the condenser is connected with a liquid separating tank through a pipeline, and a breather valve, a flame arrester and a flowmeter are respectively arranged on the pipeline; the liquid outlet above the liquid separating tank is connected with a torch through a fan, and the liquid outlet below the liquid separating tank is connected with a raw storage tank through a reciprocating pump; a30-degree material baffle is arranged in a pipeline between the breather valve and the condenser. The fixed roof storage tank is changed into the inner floating roof storage tank, the single calling valve is added to discharge gas to the system through the pipeline, and part of liquid-phase cyclohexanol ketone is used as an important chemical raw material, the recycling value is higher, light oil is used as important chemical fuel, and the recycling can bring important value to enterprises.
Description
Technical Field
The utility model relates to the field of recovery treatment, in particular to a system for recycling tail gas of materials of an inner floating roof storage tank and steam condensate.
Background
The storage tank is used as an indispensable chemical equipment of a chemical device, a part of tank areas are used as important dangerous sources, and the storage tank needs to pay special attention, and is divided into a fixed roof, an inner floating roof and an outer floating roof according to different structural forms. Wherein the outer floating roof tank is called an all-weather all-round tank.
In recent years, the explosion accidents of storage tanks in a tank farm frequently happen to chemical devices, the explosion accidents are basically generated, the intrinsic safety is not achieved, and most storage tanks in a park still use a fixed roof as a storage tank in a main form, the storage tanks can enable ignition sources to enter the storage tanks simply through a breather valve to cause accidents, the most central point is that under the condition that the environment is protected to be the first place, the original fixed roof storage tanks can cause a large amount of gas to be discharged into the atmosphere through the breather valve to cause serious environmental pollution, a large amount of gas is accumulated in the tank farm, and if the gas is deposited in a cofferdam, serious accidents can be caused when the concentration of the gas reaches the lower explosion limit due to the ignition sources. Conversion of large amounts of liquid to gas out of the tank can result in loss of raw materials or products which can also result in increased unit costs.
In the prior art, the storage tank exhales gas phase medium into the environment at all-weather irregular intervals through the breather valve, so that the environmental pollution and the medium loss are caused, and the control of the on-site operation environment and the unit operation cost are not facilitated.
Disclosure of Invention
The utility model aims to overcome the defects in the prior art, and provides a system for recycling material tail gas and steam condensate of an inner floating roof storage tank, wherein a fixed roof storage tank is changed into an inner floating roof storage tank, a single calling valve is added to discharge gas to the system through a pipeline, part of liquid-phase cyclohexanol ketone is used as an important chemical raw material, the recycling value is relatively high, light oil is used as important chemical fuel, and the recycling can bring important value to enterprises.
In order to solve the technical problems, the technical scheme of the utility model is as follows:
a system for recycling material tail gas and steam condensate of an inner floating roof storage tank comprises a mother tank, wherein a condenser is arranged above the mother tank, the top of the condenser is connected with a liquid separating tank through a pipeline, and a breather valve, a flame arrester and a flowmeter are respectively arranged on the pipeline; the liquid outlet above the liquid separating tank is connected with a torch through a fan, and the liquid outlet below the liquid separating tank is connected with a raw storage tank through a reciprocating pump; a30-degree material baffle is arranged in a pipeline between the breather valve and the condenser.
Further, the other path of the condenser is connected with the torch through a communication pipeline, and the communication pipeline is provided with a remote transmission regulating valve.
Further, the breather valve is a single-breathing valve.
Further, a 30-degree material baffle is positioned in the pipeline and is connected with a condensate inlet of the mother tank through a liquid guiding pipe.
The system improves the following aspects:
in a first aspect, a mother tankThe gas discharged by the top single-calling valve directly enters the flow rate of 600m 3 The turbine fan is pressurized to 80kpa and discharged to a torch system, in order to prevent the fan from stopping suddenly, a blow-down pipe is added on an inlet blow-down main pipeline, emergency blow-down is prepared at any time, in order to prevent an ignition source from entering the system, a detonation-resistant flame arrester is added at the end of a blow-down pipeline, the tail of the pipeline is provided with an undesirable blow-down effect in order to prevent blow-down resistance, a Y-shaped pipe cap is used for replacing a common pipe cap at the end of the pipeline, and an orifice flowmeter is added on the pipeline to check blow-down flow data at any time.
In the second aspect, because the fan is a turbine fan, in order to prevent the tank top discharged air from entraining a certain amount of liquid level and causing great damage to the impeller by entering the inside of the fan, a liquid separating tank is added at the inlet of the fan, the liquid separating tank is a vapor-liquid separating tank, discharged air enters at the middle upper part of the device, enough residence time is reserved for liquid drops, a liquid level meter is designed at the separating tank, the liquid level condition in the tank is monitored at any time, a pneumatic reciprocating pump is added at the tank bottom, the liquid at the tank bottom is pumped into an original system at any time, because the quantity of liquid phase is extremely small, and the flow rate of the reciprocating pump is 5m 3 /h。
In the third aspect, in order to achieve the control of the oxygen content at the inlet of the fan, a nitrogen pipeline is added from the liquid separating tank to the inlet pipeline of the fan, and 2 oxygen measuring meters are added, so that the stable control of the operation of the fan is enhanced through the detection of the oxygen content.
In the fourth aspect, due to the factors of working conditions and environment, the flow of the discharged air may be unstable in the later operation, in order to prevent the surge of the fan in the later operation, a communication pipeline is added from the outlet of the fan to the inlet of the fan, and a remote transmission regulating valve is added to the communication pipeline, so that the unmanned operation on site is realized.
In a fifth aspect, a 30 ° material baffle is provided and the original condensing equipment is placed 45 ° obliquely, so as to reduce vapor resistance as much as possible and condensate falling speed, and prevent condensate from entering the tank top.
In a sixth aspect, condensate is directed into the mother tank as much as possible according to the principle of the communicating vessel and the resistance to liquid entering the mother tank is reduced.
In the seventh aspect, in order to prevent the condensate pipe from entering nitrogen or noncondensable gas, the condensate pipe is reduced before entering the mother tank, and the inlet is arranged at the bottom of the mother tank body to play a role of liquid seal.
In the eighth aspect, in order to influence the condensation effect of the original cooler by nitrogen or noncondensable gas, a single-calling valve is connected to a shell layer of the cooler, a single-calling outlet is connected to an emptying pipeline, and a flare system is driven in by a fan to further prevent materials from being discharged into the atmosphere, so that the problem of environmental pollution is solved.
In the ninth aspect, in order to prevent the whole emptying recovery system from being completely disabled during operation, a corresponding breather valve is added at the top of the storage tank, so that the whole storage tank is ensured not to be overpressurized, and the independent operation is good.
The beneficial technical effects of the utility model are as follows:
the utility model passes through.
According to the technology, the problem of environmental pollution caused by the fact that storage tank air release is directly discharged to the environment through a breather valve (a single-breathing valve) under the condition that volatile substances exist is solved, waste liquid cannot be well collected by an inner floating roof storage tank, the technology adds 30-degree material baffle to collect materials and then condensate collected through a communicating vessel principle is injected into a mother tank again, and therefore materials are better collected.
Drawings
FIG. 1 is a left side view of a 30℃material baffle;
fig. 2 is a front view of a 30 ° material baffle
FIG. 3 is a schematic diagram of a mother tank of the present application;
FIG. 4 is a schematic view of a condenser;
FIG. 5 is a schematic diagram of a process flow structure of the present utility model;
in the figure, 1, a mother tank, 2, a condenser, 3, a single call valve, 4, a flame arrester, 5, a flowmeter, 6, a reciprocating pump, 7, a liquid separating tank, 8, a fan, 9, 30-degree material baffles, 10 and a liquid guiding pipe.
Detailed Description
The following examples will provide those skilled in the art with a more complete understanding of the present utility model and are not intended to limit the utility model to the embodiments described.
Example 1
A system for recycling material tail gas and steam condensate of an inner floating roof storage tank comprises a mother tank 1, wherein a condenser 2 is arranged above the mother tank 1, the top of the condenser 2 is connected with a liquid separating tank 7 through a pipeline, and a breather valve 3, a flame arrester 4 and a flowmeter 5 are respectively arranged on the pipeline; the liquid outlet above the liquid separating tank 7 is connected with a torch through a fan 8, and the liquid outlet below the liquid separating tank is connected with the original storage tank through a reciprocating pump 6. The other path of the condenser 2 is connected with the torch through a communication pipeline, and the communication pipeline is provided with a remote transmission regulating valve.
A 30-degree material baffle 9 is arranged in a pipeline between the breather valve 3 and the condenser 2 and is connected with a condensate inlet of the mother tank through a liquid guiding pipe 10.
The crude alcohol ketone storage tank is an internal floating roof storage tank and is characterized in that the storage tank is complex in material components, the operation generation range is relatively large, mainly the material temperature is relatively high, volatile substances are very easy to generate for a long time at about the bubble point of some materials, steam passes through a condenser in the rising process, condensed liquid slowly descends in a pipeline, passes through a baffle plate and then is slowly collected and then is introduced into a mother tank through a liquid guiding pipe connected with a condensate inlet, and noncondensable gas enters a fan through a single calling valve and is pumped into a torch system.
The method solves the problem of waste gas discharged by the device, reduces the loss of materials, lowers the production cost, recovers the raw material cyclohexanol ketone with commercial value and the product light oil, predicts 500 tons of benzene and caprolactam to be recovered respectively, has good practical value, protects the environment, reduces the occurrence of site accidents by collecting and controlling the discharged air, and ensures the unit to be stable and long and excellent in operation.
Claims (4)
1. The system for recycling the tail gas of the material and the steam condensate of the inner floating roof storage tank comprises a mother tank (1), and is characterized in that a condenser (2) is arranged above the mother tank (1), the top of the condenser (2) is connected with a liquid separating tank (7) through a pipeline, and a breather valve (3), a flame arrester (4) and a flowmeter (5) are respectively arranged on the pipeline; the liquid outlet at the upper part of the liquid separating tank (7) is connected with a torch through a fan (8), and the liquid outlet at the lower part is connected with the original storage tank through a reciprocating pump (6); a30-degree material baffle (9) is arranged in a pipeline between the breather valve (3) and the condenser (2).
2. The system for recycling the tail gas of the material and the steam condensate of the inner floating roof storage tank according to claim 1, wherein the other path of the condenser (2) is connected with the torch through a communication pipeline, and the communication pipeline is provided with a remote transmission regulating valve.
3. The system for recycling material tail gas and steam condensate of an inner floating roof tank of claim 1, wherein the breather valve is a single-breathing valve.
4. The system for recycling the material tail gas and the steam condensate of the inner floating roof storage tank according to claim 1, wherein a 30-degree material baffle is arranged in the pipeline and is connected with a condensate inlet of the mother tank through a liquid guiding pipe (10).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320713162.4U CN219407834U (en) | 2023-03-30 | 2023-03-30 | System for recycling material tail gas and steam condensate of inner floating roof storage tank |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320713162.4U CN219407834U (en) | 2023-03-30 | 2023-03-30 | System for recycling material tail gas and steam condensate of inner floating roof storage tank |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN219407834U true CN219407834U (en) | 2023-07-25 |
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ID=87205212
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202320713162.4U Active CN219407834U (en) | 2023-03-30 | 2023-03-30 | System for recycling material tail gas and steam condensate of inner floating roof storage tank |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN219407834U (en) |
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2023
- 2023-03-30 CN CN202320713162.4U patent/CN219407834U/en active Active
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