Waste gas and oil gas recovery system

Abstract

The waste gas and oil gas recovery system comprises a storage and transportation oil gas recovery device, an odor biological treatment device, an oil gas branch, an odor branch, a mixer and a boiler, one end of the oil-gas branch is connected with the storage and transportation oil-gas recovery device, and the other end is connected with a first input end of the mixer; one end of the odor branch is connected with the odor biological treatment device, and the other end of the odor branch is connected with the second input end of the mixer; the output end of the mixer is connected with the boiler. The problems that in the waste gas treatment process in the prior art, the waste gas treatment effect is poor, and the emission standard cannot be met easily are solved. The technical effect that the waste gas reaches the emission standard after being reasonably treated is achieved, and energy and investment cost are saved.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of waste gas treatment, and in particular to a waste gas and oil gas recovery system. BACKGROUND

[0002] The waste gas of a sewage treatment plant mainly comes from the ventilation systems of treatment facilities such as biochemical ponds, aeration ponds, sludge concentration ponds and the like and process procedures such as sludge drying. These waste gases contain harmful gases such as ammonia, hydrogen sulfide, methyl mercaptan and carbon dioxide, and if not treated, will cause serious harm to the environment and human health.

[0003] At present, the environmental protection problem of energy chemical enterprises is increasingly severe, and the waste gas generated by sewage treatment must be recovered. In the process of treating the waste gas, there is a problem that the waste gas treatment effect is poor and the emission standard is easily not reached. CONTENT OF THE UTILITY MODEL

[0004] The embodiment of the present application provides a waste gas and oil gas recovery system, which solves the problem that the waste gas treatment effect is poor and the emission standard is easily not reached in the process of treating waste gas in the prior art. The technical effect of achieving the emission standard after reasonable treatment of waste gas is achieved, and energy and investment cost are saved.

[0005] The utility model embodiment provides a kind of waste gas and oil gas recovery system, including storage and transportation oil gas recovery device, odor biological treatment device, oil gas branch, odor branch, mixer and boiler;The one end of the oil gas branch is connected with the storage and transportation oil gas recovery device, and the other end is connected with the first input end of mixer;The one end of the odor branch is connected with the odor biological treatment device, and the other end is connected with the second input end of mixer;The output end of the mixer is connected with the boiler.

[0006] In a possible implementation manner, the waste gas and oil gas recovery system further includes an oxygen supply device and an oxygen branch;The one end of the oxygen branch is connected with the oxygen supply device, and the other end is connected with the third input end of the mixer.

[0007] In a possible implementation manner, the oil gas branch includes a first fan and an oil gas absorption tank;The input end of the oil gas absorption tank is connected with the storage and transportation oil gas recovery device, and the output end of the oil gas absorption tank is connected with the first input end of the mixer;The first fan is connected between the oil gas absorption tank and the storage and transportation oil gas recovery device.

[0008] In a possible implementation manner, the oil gas branch further includes a buried oil tank;The buried oil tank is connected between the oil gas absorption tank and the first input end of the mixer.

[0009] In a possible implementation, the odor branch includes a second fan and an odor buffer tank; an input end of the odor buffer tank is connected with the odor biological treatment device, and an output end of the odor buffer tank is connected with a second input end of the mixer; the second fan is connected between the odor buffer tank and the odor biological treatment device.

[0010] In a possible implementation, the oxygen branch includes a gas flow meter; one end of the gas flow meter is connected with the oxygen supply device, and the other end is connected with a third input end of the mixer.

[0011] In a possible implementation, the oil gas branch further includes an oil gas bypass; one end of the oil gas bypass is connected between the first fan and the oil gas absorption tank, and the other end of the oil gas bypass is connected between the buried oil tank and the mixer.

[0012] In a possible implementation, the odor branch includes an odor bypass; the odor bypass is arranged in parallel with the odor buffer tank.

[0013] In a possible implementation, the waste gas and oil gas recovery system further includes a monitoring device; the monitoring device is arranged at an outlet end of the boiler and is configured to monitor the concentration of waste gas discharged by the boiler.

[0014] In a possible implementation, the oil gas branch further includes a pressure control valve; the pressure control valve is arranged on the oil gas absorption tank and the buried oil tank.

[0015] One or more technical solutions provided in the present application have at least the following technical effects:

[0016] A waste gas and oil gas recovery system includes a storage and transportation oil gas recovery device, an odor biological treatment device, an oil gas branch, an odor branch, a mixer and a boiler; oil gas is output from the storage and transportation oil gas recovery device, and the oil gas is transported to a first input end of the mixer through the oil gas branch; odor is output from the odor biological treatment device, and the odor is transported to a second input end of the mixer through the odor branch; an output end of the mixer is connected with the boiler, and the oil gas and the odor can be uniformly mixed in the mixer and then transported to the boiler for combustion, the oil gas is equivalent to combustion gas, and the mixed odor and oil gas have better combustion effect, so that the concentration of waste gas discharged by the boiler can be reduced.

[0017] Furthermore, a monitoring device is arranged at an outlet end of the boiler, the concentration of waste gas discharged by the boiler can be detected through the monitoring device, the monitoring device can control the oil gas branch and the odor branch, so that the concentration of waste gas discharged by the boiler can be prevented from exceeding the standard, and the system can be better adjusted.

[0018] The present application solves the problem of poor waste gas treatment effect and difficulty in meeting the emission standard in the prior art. BRIEF DESCRIPTION OF DRAWINGS

[0019] In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings needed in the description of the embodiments of the present application will be briefly introduced. Obviously, the drawings in the following description are some embodiments of the present application, and other drawings can be obtained by those skilled in the art without creative labor on the basis of these drawings.

[0020] Figure 1 The present application provides a schematic diagram of a waste gas and oil gas recovery system.

[0021] Figure: 1-Storage and transportation oil gas recovery device; 2-Odor biological treatment device; 3-Oxygen supply device; 4-Oil gas branch; 41-First fan; 42-Oil gas absorption tank; 43-Buried oil tank; 44-Oil gas bypass; 45-First valve; 46-Second valve; 47-Third valve; 48-Fourth valve; 5-Odor branch; 51-Second fan; 52-Odor buffer tank; 53-Odor bypass; 54-Fifth valve; 55-Sixth valve; 56-Seventh valve; 6-Oxygen branch; 61-Gas flow meter; 62-Eighth valve; 7-Mixer; 8-Boiler; 9-Monitoring device. DETAILED DESCRIPTION

[0022] The technical solutions of the embodiments of the present application will be described clearly and completely in combination with the drawings in the embodiments of the present application. Obviously, the described embodiments are part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of the present application.

[0023] In the description of the embodiments of the utility model, it needs to be explained that, the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer" 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 embodiments of the utility model and simplifying the description, and therefore cannot be understood as indicating or implying that the devices or elements indicated must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the utility model. The terms "first", "second", "third" are only for the purpose of description, and cannot be understood as indicating or implying relative importance. In addition, the terms "mounting", "connecting", "connection" should be broadly understood, for example, it can be fixed connection, or detachable connection, or integrally connected; it can be mechanical connection, or electrical connection; it can be directly connected, or indirectly connected through an intermediate medium, or the communication between two elements inside. For ordinary skilled in the art, the specific meaning of the above terms in the embodiments of the utility model can be understood according to the specific circumstances.

[0024] The utility model embodiments provide a kind of waste gas and oil gas recovery system, as shown in figure Figure 1 It includes storage and transportation oil gas recovery device 1, odor biological treatment device 2, oil gas branch 4, odor branch 5, mixer 7 and boiler 8;Oil gas branch 4 one end is connected with storage and transportation oil gas recovery device 1, its other end is connected with the first input end of mixer 7;Odor branch 5 one end is connected with odor biological treatment device 2, its other end is connected with the second input end of mixer 7;The output end of mixer 7 is connected with boiler 8.

[0025] Example, output oil gas from storage and transportation oil gas recovery device 1, oil gas is transported to the first input end of mixer 7 by oil gas branch 4;Output odor from odor biological treatment device 2, odor is transported to the second input end of mixer 7 by odor branch 5;The output end of mixer 7 is connected with boiler 8, oil gas and odor can be uniformly mixed in mixer 7 and then transported to boiler 8 for combustion, oil gas is combustion gas, and the combustion effect of uniformly mixed odor and oil gas is better, so as to reduce the concentration of boiler 8 waste gas emission.

[0026] In the embodiments of the present application, as shown in figure Figure 1 It further includes oxygen supply device 3 and oxygen branch 6;Oxygen branch 6 one end is connected with oxygen supply device 3, its other end is connected with the third input end of mixer 7.

[0027] Example, oxygen is combustion-supporting gas, mixer 7 can uniformly mix oil gas, odor and oxygen and then send into boiler 8 for combustion, which can better treat waste gas, thereby reducing the concentration of boiler 8 waste gas emission.

[0028] In the embodiments of the present application, as shown in figureFigure 1 As shown in the figure, the oil and gas branch 4 comprises a first fan 41 and an oil and gas absorption tank 42; the input end of the oil and gas absorption tank 42 is connected with the storage and transportation oil gas recovery device 1, and the output end of the oil and gas absorption tank 42 is connected with the first input end of the mixer 7; the first fan 41 is connected between the oil and gas absorption tank 42 and the storage and transportation oil gas recovery device 1.

[0029] In the embodiment of the present application, as shown in the figure, Figure 1 As shown in the figure, the oil and gas branch 4 further comprises a buried oil tank 43; the buried oil tank 43 is connected between the oil and gas absorption tank 42 and the first input end of the mixer 7.

[0030] Exemplarily, the first valve 45, the second valve 46 and the third valve 47 are further included, the first valve 45 is arranged between the first fan 41 and the oil and gas absorption tank 42; the second valve 46 is arranged between the oil and gas absorption tank 42 and the buried oil tank 43, and the third valve 47 is arranged between the buried oil tank 43 and the mixer 7. By adjusting the first valve 45, the second valve 46 and the third valve 47, the oil and gas branch 4 can be more flexible.

[0031] Exemplarily, when the monitoring device 9 detects that the outlet exhaust gas concentration exceeds the standard, the first valve 45 is opened and the fourth valve 48 and the second valve 46 are closed, so that the oil gas can be recovered; the first fan 41 can be used to pressurize the oil and gas absorption tank 42, so that the absorption efficiency of the oil and gas absorption tank 42 is increased to 99%, and part of the oil-rich oil gas can be directly reduced to oil at normal temperature, so as to improve the waste utilization rate. The buried oil tank 43 can temporarily store the oil product absorbed by the oil and gas absorption tank 42, thereby saving energy.

[0032] In the embodiment of the present application, as shown in the figure, Figure 1 As shown in the figure, the odor branch 5 comprises a second fan 51 and an odor buffer tank 52; the input end of the odor buffer tank 52 is connected with the odor biological treatment device 2, and the output end of the odor buffer tank 52 is connected with the second input end of the mixer 7; the second fan 51 is connected between the odor buffer tank 52 and the odor biological treatment device 2.

[0033] Exemplarily, the fifth valve 54 and the sixth valve 55 are further included, the fifth valve 54 is arranged between the second fan 51 and the odor storage tank, and the sixth valve 55 is arranged between the odor storage tank and the mixer 7, and by adjusting the fifth valve 54 and the sixth valve 55, the odor branch 5 can be more flexible.

[0034] Exemplarily, when the monitoring device 9 detects that the outlet exhaust gas concentration exceeds the standard, the fifth valve 54 is opened and the sixth valve 55 and the seventh valve 56 are closed, so that the odor can be temporarily stored and discharged after the concentration reaches the standard.

[0035] In the embodiment of the present application, as shown in the figure, Figure 1As shown, the oxygen branch 6 comprises a gas flow meter 61; one end of the gas flow meter 61 is connected with the oxygen supply device 3, and the other end is connected with the third input end of the mixer 7.

[0036] Exemplarily, the gas flow meter 61 can adjust the oxygen flow, so that the odor gas and the oil gas can be fully combusted in the boiler 8.

[0037] Exemplarily, the eighth valve 62 is arranged between the oxygen supply device 3 and the gas flow meter 61. By adjusting the eighth valve 62, the oxygen branch 6 can be more flexible.

[0038] In the embodiment of the present application, as shown in Figure 1 As shown, the oil gas branch 4 further comprises an oil gas bypass 44; one end of the oil gas bypass 44 is connected between the first fan 41 and the oil gas absorption tank 42, and the other end of the oil gas bypass 44 is connected between the buried oil tank 43 and the mixer 7.

[0039] Exemplarily, the fourth valve 48 is arranged on the oil gas bypass 44; when the monitoring device 9 detects that the exhaust gas concentration is less than the set minimum value, the fourth valve 48 is opened and the first valve 45 is closed, so that the oil gas completely enters the mixer 7; when the monitoring device 9 detects that the exhaust gas concentration is greater than the set minimum value and less than the set maximum value, the fourth valve 48 is closed and the first valve 45, the second valve 46 and the third valve 47 are opened, so that the flow of the oil gas into the mixer 7 is reduced; when the monitoring device 9 detects that the exhaust gas concentration is greater than the set maximum value, the fourth valve 48 and the third valve 47 are closed and the first valve 45 and the second valve 46 are opened, so that the oil gas is temporarily stopped from entering the mixer 7.

[0040] In the embodiment of the present application, as shown in Figure 1 As shown, the odor gas branch 5 comprises an odor gas bypass 53; the odor gas bypass 53 is connected to both ends of the odor gas buffer tank 52 and is arranged in parallel with the odor gas buffer tank 52.

[0041] Exemplarily, the seventh valve 56 is arranged on the odor gas bypass 53; the fifth valve 54, the sixth valve 55 and the seventh valve 56 have similar working principles to the first valve 45, the second valve 46, the third valve 47 and the fourth valve 48 in the oil gas branch 4.

[0042] In the embodiment of the present application, as shown in Figure 1 As shown, the monitoring device 9 is arranged at the outlet end of the boiler 8 and is configured to monitor the exhaust gas concentration discharged by the boiler 8.

[0043] Exemplarily, the monitoring device 9 comprises a controller and a detection device for detecting the exhaust gas concentration of the boiler 8 exhaust port and transmitting data to the controller, and the controller can control the working state of the first valve 45 to the eighth valve 62, so as to realize the technical effect of remotely operating the exhaust gas and oil gas recovery system, and save human resources.

[0044] In the embodiments of the present application, as shown in Figure 1 The oil gas branch 4 further comprises a pressure control valve; the oil gas absorption tank 42 and the buried oil tank 43 are both provided with a pressure control valve.

[0045] Exemplarily, by providing the pressure control valve on the oil gas absorption tank 42 and the buried oil tank 43, the pressure at the outlet end of the oil gas absorption tank 42 can be ensured to be stable within a set value range, so as to ensure the stability and safety of the entire recovery system.

[0046] Exemplarily, the display screen is further included, the controller is connected with the display screen, the control result can be displayed on the display screen, and the system can be operated on the display screen by the artificial.

[0047] Each of the embodiments in the specification is described in a progressive manner, and the same or similar parts between each of the embodiments can be referred to each other, and each of the embodiments mainly describes the difference from other embodiments.

[0048] The above embodiments are only used to illustrate the technical solutions of the present application, and are not limited to the present application; although the present application has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that the technical solutions recorded in the foregoing embodiments can still be modified, or some or all of the technical features can be replaced by equivalents; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the scope of the technical solutions of the present application.

Claims

1. An exhaust gas and oil gas recovery system characterized by, The system comprises a storage and transportation oil gas recovery device (1), a stench gas biological treatment device (2), an oil gas branch (4), a stench gas branch (5), a mixer (7) and a boiler (8); One end of the oil gas branch (4) is connected with the storage and transportation oil gas recovery device (1), and the other end is connected with a first input end of the mixer (7); One end of the stench gas branch (5) is connected with the stench gas biological treatment device (2), and the other end is connected with a second input end of the mixer (7); An output end of the mixer (7) is connected with the boiler (8).

2. The exhaust gas and oil gas recovery system of claim 1, wherein The system further comprises an oxygen supply device (3) and an oxygen branch (6); One end of the oxygen branch (6) is connected with the oxygen supply device (3), and the other end is connected with a third input end of the mixer (7).

3. The exhaust gas and oil gas recovery system of claim 1, wherein The oil gas branch (4) comprises a first fan (41) and an oil gas absorption tank (42); An input end of the oil gas absorption tank (42) is connected with the storage and transportation oil gas recovery device (1), and an output end of the oil gas absorption tank (42) is connected with the first input end of the mixer (7); The first fan (41) is connected between the oil gas absorption tank (42) and the storage and transportation oil gas recovery device (1).

4. The exhaust gas and oil gas recovery system of claim 3, wherein The oil gas branch (4) further comprises a buried oil tank (43); The buried oil tank (43) is connected between the oil gas absorption tank (42) and the first input end of the mixer (7).

5. The exhaust gas and oil gas recovery system of claim 1, wherein The stench gas branch (5) comprises a second fan (51) and a stench gas buffer tank (52); An input end of the stench gas buffer tank (52) is connected with the stench gas biological treatment device (2), and an output end of the stench gas buffer tank (52) is connected with the second input end of the mixer (7); The second fan (51) is connected between the stench gas buffer tank (52) and the stench gas biological treatment device (2).

6. The exhaust gas and oil gas recovery system of claim 2, wherein The oxygen branch (6) comprises a gas flow meter (61); One end of the gas flow meter (61) is connected with the oxygen supply device (3), and the other end is connected with the third input end of the mixer (7).

7. The exhaust gas and oil gas recovery system of claim 4, wherein The oil gas branch (4) further comprises an oil gas bypass (44); One end of the oil gas bypass (44) is connected between the first fan (41) and the oil gas absorption tank (42), and the other end of the oil gas bypass (44) is connected between the buried oil tank (43) and the mixer (7).

8. The exhaust gas and oil gas recovery system of claim 5, wherein, The stench gas branch (5) comprises a stench gas bypass (53); The stench gas bypass (53) is arranged in parallel with the stench gas buffer tank (52).

9. The exhaust gas and oil gas recovery system of claim 1, wherein, The system further comprises a monitoring device (9); The monitoring device (9) is arranged at an outlet end of the boiler (8) and is configured to monitor a concentration of exhaust gas discharged by the boiler (8).

10. The exhaust gas and oil gas recovery system of claim 4, wherein, The oil gas branch (4) further comprises a pressure control valve; The pressure control valve is arranged on both the oil gas absorption tank (42) and the buried oil tank (43).

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