Device for treating waste gas escaping from liquid storage tank
By combining a flexible trap and a semiconductor catalytic oxidation device, the problem of poor sealing effect of rigid sealed liquid storage tanks is solved, achieving efficient waste gas capture and purification, reducing energy consumption, and enhancing the safety and adaptability of the system.
Patent Information
- Application Number
- CN202520131806.8
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-01-20
- Publication Date
- 2026-01-02
- Estimated Expiration
- 2035-01-20
AI Technical Summary
Existing rigid, sealed liquid storage tank exhaust gas treatment systems have poor sealing performance, low collection efficiency, high energy consumption, and are difficult to maintain. They also cannot adapt to changes in the volume of the sewage tank and chemical corrosion, posing safety hazards.
It employs a flexible trap and semiconductor catalytic oxidation equipment, combined with a flexible breathing bag, to achieve flexible positive pressure closed collection. It uses flexible pipelines and semiconductor catalytic oxidation equipment for waste gas treatment, and is equipped with an intelligent monitoring system to achieve automatic adjustment and efficient purification.
It improves the waste gas capture efficiency to 100%, reduces energy consumption and maintenance costs, enhances system safety and adaptability, adapts to wastewater treatment of different concentrations and temperatures, and reduces the risk of harmful gas leakage.
Smart Images
Figure CN223747332U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to the field of waste gas treatment device, concretely is a kind of liquid storage pool dissipation waste gas treatment device. BACKGROUND
[0002] In chemical plant, petroleum refining, gas station, oil depot and the like place, since water (oil) storage pool can produce combustible gas in storage process, these gases will dissipate into the atmosphere if not controlled, cause environmental pollution and security risk.Therefore, it is particularly important to install water (oil) storage pool waste gas dissipation treatment system.The system can effectively collect and treat these waste gases, reduce harmful gas emissions, protect environmental safety and human health.In addition, in the field of municipal engineering, waterworks and the like, large water storage pool can also produce odor and harmful gas during long-time storage process, affect water quality and surrounding environment.By introducing water (oil) storage pool waste gas dissipation treatment system, water quality can be significantly improved, air around the pool is fresh, and urban image and residents' quality of life are improved.
[0003] At present, rigid closed negative pressure trapping technology is used for water (oil) storage pool, and the gas collection amount is large, and the energy consumption is high, and since it is rigid, it cannot be completely sealed, otherwise the rigid structure vacuum will collapse.Therefore, its sealing effect is poor, and the collection efficiency is low (generally less than 70%), and it cannot effectively collect, so that it cannot limit the dissipation of odor and VOCs gas.Due to the large negative pressure collection, the treatment gas amount is greatly increased, and the cost of subsequent waste gas treatment is increased.Rigid closed system has the following disadvantages:1. due to the limitation of rigid structure, the sewage pool is prone to stress concentration when volume expansion or shrinkage occurs, resulting in structural damage;2. rigid closed system has poor adaptability when treating sewage with different concentrations and temperatures, and additional adjustment measures may be required;3. maintenance and cleaning work in rigid closed sewage pool is difficult, because the entire closed structure needs to be disassembled and reassembled;4. rigid closed sewage pool may not have enough resistance to earthquakes and other natural disasters, and there is potential safety risk;5. in the long run, the material of rigid closed structure may gradually fail due to corrosion by chemicals in sewage, increasing maintenance cost;6. once the sealing property is damaged, harmful gas may leak, posing a threat to the environment and the health of workers;7. rigid closed system usually does not have automatic adjustment function, and is difficult to adapt to changes in water level or pressure in sewage pool. UTILITY MODEL CONTENTS
[0004] The utility model aims at solving the above-mentioned problems, and provides a kind of liquid storage pool dissipation waste gas treatment device with simple structure and reasonable structure, which mainly realizes energy saving and emission reduction by using flexible positive pressure closed collection, reduces energy consumption and improves efficiency.
[0005] The utility model discloses a storage pool escape exhaust gas treatment device for sewage pool, which is provided with a storage cavity for storing water or oil, and comprises:
[0006] A flexible collector is installed in the sewage pool and covers the liquid surface of the sewage pool.
[0007] A semiconductor catalytic oxidation device is connected with the storage cavity through the exhaust pipe and the exhaust pipe.
[0008] A flexible breathing air bag is connected with the escape exhaust pipe, which is connected with the storage cavity.
[0009] The utility model discloses a storage pool escape exhaust gas treatment device for sewage pool, which is provided with a storage cavity for storing water or oil, and comprises:
[0010] As a more specific scheme, the exhaust pipe is connected with the inlet ball valve, and the exhaust pipe is connected with the exhaust ball valve.
[0011] As a further scheme, the escape exhaust pipe is connected with the first ball valve and the second ball valve in sequence, and the escape exhaust pipe between the first ball valve and the second ball valve is provided with a detachable pipe joint.
[0012] As a further scheme, the bottom of the sewage pool is provided with a liquid outlet, and the liquid outlet is provided with a drain valve between the sewage pool.
[0013] As a further scheme, it further comprises a liquid level meter outside the sewage pool, and the liquid level meter is connected with the flexible collector and the drain valve.
[0014] As a further scheme, it further comprises an air bag protective sleeve, and the flexible breathing air bag is installed in the air bag protective sleeve.
[0015] As a further scheme, the inner wall of the sewage pool is connected with a collector mounting clamp, and the flexible collector is connected with the storage cavity through the collector mounting clamp.
[0016] As a further scheme, the inner wall of the sewage pool is flat, and the flexible collector is arranged in a flexible gap with the inner wall of the sewage pool.
[0017] As a further scheme, the sewage pool comprises a pit with an open top, and a concrete cover is detachably arranged on the opening of the pit, and the concrete cover and the pit define the storage cavity, and two air ports are arranged on the concrete cover, one of which is connected with the exhaust pipe, and the other is connected with the exhaust pipe.
[0018] As a further solution, the exhaust gas duct, the exhaust air duct and the escaping exhaust gas duct are flexible ducts.
[0019] The beneficial effects of the present application are as follows:
[0020] The liquid storage pool escaping exhaust gas treatment device has the advantages that the device plays a role in energy saving and pollution reduction, reduces material loss, reduces VOCs emission and treatment investment, reduces exhaust gas volume, realizes positive pressure conveying, reduces gathering and conveying energy consumption, improves VOCs capture efficiency and concentration, and improves resource utilization rate.
[0021] The original safety measures are not changed, and the device is environmentally friendly, safe, oxygen-proof, flame-retardant, anti-static, does not need heating desorption, does not contact with air, and is anti-leakage.
[0022] The device can adapt to volume expansion or contraction and is not prone to structural damage.
[0023] The device can treat sewage with different concentrations and temperatures without additional adjustment measures.
[0024] The sewage pool is mainly composed of a concrete pit and a concrete cover, can be flexibly opened for maintenance and cleaning work, has good shock resistance, can gradually fail due to corrosion of chemical substances in sewage, can reduce maintenance cost, and can quickly adapt to changes in water level or pressure in the sewage pool. BRIEF DESCRIPTION OF DRAWINGS
[0025] Figure 1 It is a schematic view of the liquid storage pool escaping exhaust gas treatment device in the present application. DETAILED DESCRIPTION
[0026] The present application will be further described below in combination with the drawings and examples.
[0027] Reference Figure 1 As shown in the drawings, the liquid storage pool escaping exhaust gas treatment device is used for a sewage pool 1, the sewage pool 1 is provided with a liquid storage cavity 101 for storing water or oil, and comprises:
[0028] A flexible collector 2 is floatably installed in the sewage pool 1, and the flexible collector 2 covers the liquid surface of the sewage pool 1;
[0029] A semiconductor catalytic oxidation device 3 is provided with an exhaust gas duct 5 and an exhaust air duct 6 connected to the gas inlet end and the gas outlet end respectively, the exhaust gas duct 5 and the exhaust air duct 6 are connected to the top surface of the sewage pool 1, the semiconductor catalytic oxidation device 3 forms a circulating flow with the liquid storage cavity 101 through the exhaust gas duct 5 and the exhaust air duct 6, plays a role in preventing leakage, and reduces exhaust gas concentration through circulation in the middle;
[0030] A flexible breathing gas bag 4 is connected with an escape waste gas pipeline 7, which is connected to the sewage pool 1 and communicates with the liquid storage cavity 101; after water enters the sewage pool 1, the water level rises to squeeze the gas into the flexible breathing gas bag 4 for temporary storage, and after the sewage pool 1 is drained, the liquid storage cavity 101 forms a negative pressure to suck the gas back from the flexible breathing gas bag 4, so as to breathe back and forth.
[0031] The waste gas treatment device adopts flexible positive pressure closed collection, mainly plays a role in energy saving and pollution reduction, reduces the loss of materials, reduces VOCs emission and treatment investment, reduces waste gas volume, positive pressure transportation, reduces energy consumption of gathering and transportation, improves VOCs capture efficiency and concentration, improves resource utilization rate, and can not change the original safety measures (such as safety valve), which is safe and reliable in technology, air-tight, flame-retardant, anti-static, and anti-leakage.
[0032] The flexible collector 2 is composed of anti-static and flame-retardant composite materials, can isolate air, and is air-tight to the liquid surface to realize efficient capture of VOCs, while reducing the risk brought by oxygen and ignition source and improving the safety of the system; the captured VOCs waste gas is transported to the flexible breathing gas bag 4 by using the positive pressure generated by itself.
[0033] The flexible collector 2 used has high safety, the material has the characteristics of anti-static, air isolation, anti-permeation, etc.; and has high capture rate, the liquid surface releasing VOCs is basically air-tight, the waste gas capture efficiency is up to 100%, which can effectively prevent the leakage of odor and harmful gas, and reduce the evaporation loss of water body; in addition, the waste gas volume is small, air can be isolated, there is no need to dilute the waste gas, the waste gas volume is greatly reduced, which is 10-30% of the traditional waste gas capture volume; finally, the energy consumption is low, the power of the conveying fan is reduced, and energy is saved; in terms of installation, the flexible collector is simple and fast, and can be quickly deployed on sewage pools of various shapes and sizes, and has strong adaptability.
[0034] In order to further enhance the environmental benefits, the flexible collector 3 of the sewage pool can also be equipped with an intelligent monitoring system, which can monitor the gas concentration, temperature and pressure and other key parameters in the sewage pool in real time, and wirelessly transmit the data to the central control room. When the gas concentration reaches the set standard, the semiconductor catalytic oxidation equipment 3 purifies the waste gas in the closed space in circulation to ensure that the concentration in the sewage pool is below the safety value.
[0035] The semiconductor catalytic oxidation equipment 3 mainly consists of a light source and a catalyst, which can improve the one-time purification efficiency, can purify multiple pollutants at the same time, has no secondary pollution, has small equipment area, low operation cost, no need for frequent replacement, safety and stability, easy maintenance, long service life; easy to assemble, only pipeline connection is needed on site; wherein:
[0036] Light source: the low-power high photoelectric efficiency narrow-band LED ultraviolet light source is used as the light source of the photocatalyst. Its characteristics: single wavelength ultraviolet light UVA, high photoelectric conversion efficiency, more than 20000 hours of life, extremely low power consumption, not easy to damage, no secondary pollution caused by intermediate products such as ozone.
[0037] Catalyst: using semiconductor crystal technology, the nanometer titanium dioxide is accumulated into micrometer titanium dioxide. The characteristics: it can effectively and firmly grow on the carrier and has self-cleaning function, which solves the problem that the existing photocatalytic technology cannot reliably leave the photocatalyst on the carrier, resulting in low efficiency and other shortcomings, greatly improving the service life and purification efficiency of the catalyst.
[0038] The gas inlet ball valve 8 is connected in series on the exhaust gas pipeline 5, and the exhaust gas ball valve 9 is connected in series on the exhaust gas pipeline 6; the gas inlet ball valve 8 and the exhaust gas ball valve 9 can close the gas inlet end and the gas outlet end of the semiconductor catalytic oxidation equipment 3, facilitating the disassembly and assembly of the semiconductor catalytic oxidation equipment 3.
[0039] The first ball valve 10 and the second ball valve 11 are connected in series on the escape exhaust gas pipeline 7; the escape exhaust gas pipeline 7 between the first ball valve 10 and the second ball valve 11 is provided with a detachable pipeline joint (not marked in the figure); when the flexible breathing air bag 4 is full, the first ball valve 10 mainly closes the escape exhaust gas pipeline 7, and the second ball valve 11 closes the flexible breathing air bag 4, and then the pipeline joint is disconnected, and the flexible breathing air bag 4 is transported to the waste gas treatment facility (RTO or waste gas boiler, etc.).
[0040] The bottom of the sewage tank 1 is provided with a liquid outlet 12, and the liquid outlet 12 and the sewage tank 1 are provided with a drain valve 13; the sewage in the sewage tank 1 can be drained. In this embodiment, the liquid level meter 14 is further arranged outside the sewage tank 1, and the liquid level meter 14 is connected with the flexible trap 2 and the drain valve 13 respectively; after detecting the water level of the sewage tank 1 by the liquid level meter 14, the opening and closing of the drain valve 13 is controlled to automatically drain water.
[0041] It also includes an air bag protective sleeve 15, and the flexible breathing air bag 4 is installed in the air bag protective sleeve 15; the air bag protective sleeve 15 can support and protect the flexible breathing air bag 4 during transportation or use.
[0042] The inner wall of the sewage tank 1 is connected with a trap mounting clamp 16, and the flexible trap 2 is floatingly connected in the liquid storage cavity 101 through the trap mounting clamp 16; the trap mounting clamp 16 is used for suspending the flexible trap 2, so that the flexible trap 2 is floatingly installed, and the floating height is about 2 meters.
[0043] The inner wall surface of the sewage tank 1 is flat, and the flexible trap 2 is arranged in flexible gap with the inner wall surface of the sewage tank 1.
[0044] The sewage tank 1 comprises a top-opened pit 17, and a detachable concrete cover 18 is arranged on the opening of the pit 17, and a flexible enclosure is formed between the concrete cover 18 and the pit 17 to define a liquid storage cavity 101, and two gas ports 102 are formed on the concrete cover 18, one of which is connected with the waste gas pipeline 5, and the other is connected with the exhaust pipeline 6;
[0045] The sewage tank 1 with the above structure can be flexibly opened for maintenance and cleaning work, has good anti-seismic efficiency, can be gradually corroded and damaged due to chemical substances in sewage, and can reduce maintenance cost and quickly adapt to changes in water level or pressure in the sewage tank.
[0046] The waste gas pipeline 5, the exhaust pipeline 6 and the escaped waste gas pipeline 7 are flexible pipelines, and the flexible pipelines are convenient to lay during installation.
[0047] Of course, in other embodiments, the high-thermal-conductivity metal material can also be copper or alloy copper.
[0048] The above is the preferred scheme of the present application, and the basic principle, main features and advantages of the present application are displayed and described. Those skilled in the art should understand that the present application is not limited by the above embodiments, and the above embodiments and the description in the specification are only to illustrate the principle of the present application. Various changes and improvements can be made to the present application without departing from the spirit and scope of the present application, and these changes and improvements all fall within the scope of the present application. The scope of protection of the present application is defined by the appended claims and their equivalents.
Claims
1. A device for treating waste gas emitted from a liquid storage pool, which is used for a sewage pool (1) provided with a liquid storage cavity (101) for storing water or oil, characterized in that, The utility model relates to a sewage tank liquid level control device, including: Flexible collector (2) can float installation in sewage tank (1), and flexible collector (2) covers on the liquid level of sewage tank (1); Semiconductor catalytic oxidation equipment (3) is connected with waste gas pipeline (5) and exhaust pipeline (6) respectively at the gas inlet end and the gas outlet end, and waste gas pipeline (5) and exhaust pipeline (6) are connected to the top surface of sewage tank (1), and semiconductor catalytic oxidation equipment (3) forms circulation flow with liquid storage cavity (101) through waste gas pipeline (5) and exhaust pipeline (6); Flexible breathing air bag (4) is connected with the escape waste gas pipeline (7), and the escape waste gas pipeline (7) is connected to sewage tank (1) and communicates with liquid storage cavity (101).
2. The liquid reservoir exhaust gas treatment device of claim 1, wherein: The inlet ball valve (8) is connected in series on the waste gas pipeline (5), and the exhaust ball valve (9) is connected in series on the exhaust pipeline (6).
3. The liquid reservoir exhaust gas treatment device of claim 1, wherein: The first ball valve (10) and the second ball valve (11) are connected in series on the escape waste gas pipeline (7) in sequence, and the escape waste gas pipeline (7) between the first ball valve (10) and the second ball valve (11) is provided with a pipeline joint that can be separated from each other.
4. The liquid reservoir exhaust gas treatment device of claim 1, wherein: The bottom of the sewage tank (1) is provided with a liquid outlet (12), and the liquid outlet (12) is provided with a drain valve (13) between the sewage tank (1).
5. The liquid reservoir exhaust gas treatment device of claim 4, wherein: It also includes a liquid level gauge (14) outside the sewage tank (1), and the liquid level gauge (14) is connected with the flexible collector (2) and the drain valve (13) respectively.
6. The liquid reservoir exhaust gas treatment device of claim 1, wherein: It also includes an air bag protective sleeve (15), and the flexible breathing air bag (4) is installed in the air bag protective sleeve (15).
7. The liquid reservoir exhaust gas treatment device of claim 1, wherein: The inner wall of the sewage tank (1) is connected with a collector mounting clamp (16) at the upper portion, and the flexible collector (2) is floatingly connected in the liquid storage cavity (101) through the collector mounting clamp (16).
8. The liquid reservoir exhaust gas treatment device of claim 1, wherein: The inner wall surface of the sewage tank (1) is flat, and the flexible collector (2) is provided with a flexible gap with the inner wall surface of the sewage tank (1).
9. The liquid reservoir exhaust gas treatment device of claim 1, wherein: The sewage tank (1) includes a pit (17) with an open top, and a concrete cover (18) is detachably arranged at the opening of the pit (17), and the flexible enclosure between the concrete cover (18) and the pit (17) defines a liquid storage cavity (101), and two gas ports (102) are formed in the concrete cover (18), one of which is connected with the waste gas pipeline (5), and the other is connected with the exhaust pipeline (6).
10. The liquid reservoir exhaust gas treatment device of claim 1, wherein: The waste gas pipeline (5), the exhaust pipeline (6) and the escape waste gas pipeline (7) are flexible pipelines.