Flowing liquid collection and peculiar smell treatment device

Abstract

The utility model provides a discharged liquid collecting and peculiar smell treating device, and belongs to the technical field of environment-friendly VOCs treatment. The device comprises a gas-liquid separator, a combustible gas pipeline, a water seal tank, a condensate tank and a deodorizing device, a demister is arranged in the gas-liquid separator, a separator lower liquid inlet, a separator lower liquid outlet and a separator gas outlet are formed in the gas-liquid separator, and the separator lower liquid inlet is located below the demister; the combustible gas pipeline is connected with a gas outlet of the separator; the water seal tank is at least provided with a tank body lower liquid inlet and a tank body lower liquid outlet, and the tank body lower liquid inlet is connected with the separator lower liquid outlet; the condensate box is provided with a box body lower liquid inlet and a box body gas outlet, and the box body lower liquid inlet is connected with the tank body lower liquid outlet; and the deodorizing device is connected with the gas outlet of the box body. The device can be used for collecting and treating VOCs (Volatile Organic Chemicals) generated by condensed lower liquid of the storage tank of the chemical workshop, so that environmental pollution is reduced.

Description

Technical Field

[0001] The utility model belongs to the technical field of environmentally friendly VOCs treatment, and in particular relates to a device for treating odors from liquid collection. Background Art

[0002] At present, in the production process of coking enterprises, the pressure of the SNG position conversion system in the chemical workshop is about 1.0MPa. The lower liquid condensed in the storage tank is under high pressure during the discharge process, and a large amount of VOCs escapes in an unorganized manner. The VOCs emerging from the lower liquid tank cannot be effectively collected and treated, thus causing certain pollution to the environment. Utility Model Content

[0003] In view of the above-mentioned problems existing in the prior art, the purpose of the embodiments of the present utility model is to provide a device for collecting and treating odors from lower liquid, which can collect and treat VOCs generated by condensed lower liquid from storage tanks in chemical workshops, thereby reducing environmental pollution.

[0004] The technical solution adopted in the embodiment of the utility model is:

[0005] A device for collecting odor from lower liquid, including a gas-liquid separator, a combustible gas pipeline, a water seal tank, a condensate tank and a deodorizing device:

[0006] The gas-liquid separator has a demister inside, a separator lower liquid inlet is provided on the side wall of the gas-liquid separator, the separator lower liquid inlet is located below the demister, the gas-liquid separator has a separator lower liquid outlet at the bottom and a separator gas outlet at the top;

[0007] The combustible gas pipeline is connected to the gas outlet of the separator;

[0008] The water seal tank has at least a tank body lower liquid inlet and a tank body lower liquid outlet, and the tank body lower liquid inlet is connected to the separator lower liquid outlet;

[0009] The condensate tank has a tank lower liquid inlet and a tank gas outlet, and the tank lower liquid inlet is connected to the tank lower liquid outlet;

[0010] The deodorizing device is connected to the gas outlet of the box.

[0011] Furthermore, a safety valve is provided on the top of the gas-liquid separator.

[0012] Furthermore, the lower liquid collection and odor treatment device also includes a burner, and the feed port of the burner is connected to the safety valve through a pipeline.

[0013] Furthermore, a water supply port is provided on the water seal groove, and the lower liquid collection and odor treatment device also includes a water supply pipe connected to the water supply port.

[0014] Furthermore, the gas-liquid separator is provided with an automatic liquid level adjustment system.

[0015] Furthermore, the lower liquid collection and odor control device also includes a condensate recovery tank, the condensate tank has a lower liquid outlet of the tank body, and the lower liquid outlet of the tank body is connected to the condensate recovery tank.

[0016] Furthermore, the condensate recovery tank is a chemical product drum cooling scraping tank.

[0017] Furthermore, a breathing valve is provided on the condensate tank.

[0018] Furthermore, the gas-liquid separator, the combustible gas pipeline, the water seal tank, the condensate tank and the deodorizing device are all made of stainless steel.

[0019] Compared with the prior art, the beneficial effects of the embodiments of the present invention are:

[0020] The utility model discloses a device for collecting and treating odors from liquids containing VOCs, and the device can transport the gas and liquid containing VOCs odor into the gas-liquid separator for effective separation, thereby preventing the gas from escaping. The separated gas is sent to the combustible gas pipeline for recycling, and the separated liquid is recovered through the water seal tank and the condensate tank in turn. The residual gas in the separated liquid is deodorized by the deodorization device and then discharged in compliance with the emission standards, thus avoiding the direct discharge of VOCs odorous gas, eliminating environmental risks, and reducing environmental pollution.

[0021] It is to be understood that both the foregoing general description and the following detailed description are exemplary and explanatory only and are not restrictive of the present invention.

[0022] The overview of various implementations or examples of the technology described in this utility model is not a comprehensive disclosure of the entire scope or all features of the disclosed technology. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] In the drawings, which are not necessarily drawn to scale, the same reference numerals may describe similar components in different views. The drawings illustrate various embodiments generally by way of example and not limitation, and together with the description and claims, serve to illustrate the embodiments of the invention. Where appropriate, the same reference numerals are used throughout the drawings to refer to the same or similar parts.

[0024] Figure 1 This is a schematic structural diagram of a device for collecting and treating odors from lower liquid according to an embodiment of the present utility model;

[0025] Figure 2 This is a schematic structural diagram of a gas-liquid separator according to an embodiment of the present utility model;

[0026] Figure 3This is a schematic structural diagram of the water seal tank in an embodiment of the utility model.

[0027] In the figure: 1. Gas-liquid separator; 2. Condensate tank; 3. Water seal tank; 4. Burner; 6. Combustible gas pipeline; 7. Lower liquid discharge pipe; 8. Water supply pipe; 9. Condensate recovery tank; 10. Deodorization device; 11. Breathing valve; 100. Separator lower liquid inlet; 101. Separator lower liquid outlet; 102. Separator exhaust port; 103. Safety valve; 104. Spare port; 300. Tank lower liquid inlet; 301. Water supply port; 302. Vent port; 303. Spare port; 304. First cavity; 305. Second cavity; 306. Overflow pipe; 307. Slag discharge port; 308. Tank lower liquid outlet. DETAILED DESCRIPTION

[0028] In order to make the purpose, technical solutions and advantages of the embodiments of the present invention more clear, the technical solutions of the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings of the embodiments of the present invention. Obviously, the described embodiments are part of the embodiments of the present invention, not all of the embodiments. Based on the described embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0029] Unless otherwise defined, the technical or scientific terms used in this utility model should have the usual meanings understood by people with ordinary skills in the field to which this utility model belongs. The "first", "second" and similar words used in this utility model do not indicate any order, quantity or importance, but are only used to distinguish different components. "Include" or "comprise" and similar words mean that the elements or objects appearing before the word include the elements or objects listed after the word and their equivalents, without excluding other elements or objects. "Connect" or "connected" and similar words are not limited to physical or mechanical connections, but can include electrical connections, whether direct or indirect. "Up", "down", "left", "right" and the like are only used to indicate relative positional relationships. When the absolute position of the described object changes, the relative positional relationship may also change accordingly. In order to keep the following description of the embodiments of the utility model clear and concise, the utility model omits detailed descriptions of known functions and known components.

[0030] like Figure 1 and Figure 2 As shown, an embodiment of the utility model provides a device for collecting and treating odors from lower liquid, which mainly includes a gas-liquid separator 1, a combustible gas pipeline 6, a water seal tank 3, a condensate tank 2 and a deodorizing device 10.

[0031] Among them, the gas-liquid separator 1 is provided with a demister 105, which is generally used to separate liquid droplets entrained by the gas in the separation tower to ensure mass transfer efficiency. It is mainly arranged above the gas-liquid separator 1. During the evaporation operation, a large amount of liquid is entrained in the secondary steam. Although separation is carried out in the separation chamber, in order to prevent the loss of useful products or contamination of the condensed liquid, it is necessary to try to reduce the entrained liquid foam. Therefore, the demister 105 is arranged near the steam outlet.

[0032] A separator lower liquid inlet 100 is provided on the side wall of the gas-liquid separator 1 , a separator lower liquid outlet 101 is provided at the bottom of the gas-liquid separator 1 , and a separator exhaust port 102 is provided at the top. The combustible gas pipeline 6 is connected to the separator exhaust port 102 .

[0033] The separator's lower liquid inlet 100 is located below the demister 105 and is connected to the lower liquid discharge pipe 7. High-pressure condensate of coal gas enters the middle and lower portions of the gas-liquid separator 1 through the lower liquid discharge pipe 7. After the gas passes through the demister 105 at the top of the gas-liquid separator 1 to remove liquid droplets, it is discharged through the separator's top exhaust port 102 into the combustible gas pipeline 6. Combustible gas pipeline 6 can be a low-pressure coal gas pipeline.

[0034] The water seal tank 3 has at least a tank body lower liquid inlet 300 and a tank body lower liquid outlet 308, the tank body lower liquid inlet 300 is connected to the separator lower liquid outlet 101, the condensate tank 2 has a tank body lower liquid inlet and a tank body gas outlet, the tank body lower liquid inlet is connected to the tank body lower liquid outlet 308, and the deodorization device 10 is connected to the tank body gas outlet.

[0035] The liquid separated by the gas-liquid separator 1 passes through the water seal groove 3, which prevents the gas in the gas-liquid separator 1 from entering the condensate tank 2. The condensate tank 2 is used to buffer the condensate. The volatile gas in the condensate tank 2 does not contain flammable components and can be sent to the deodorization device 10 for deodorization and treatment. The deodorization device 10 can be a sewage treatment odor control device.

[0036] The lower liquid collection and odor control device of this embodiment can transport the gas and liquid containing VOCs odor to the gas-liquid separator 1 for effective separation to prevent gas escape. The separated gas is sent to the combustible gas pipeline 6 for recycling and use, and the separated liquid is recovered through the water seal tank 3 and the condensate tank 2 in turn. Among them, the residual gas in the separated liquid is deodorized by the deodorization device 10 and then discharged in compliance with the emission standards, avoiding the direct discharge of VOCs odorous gas, eliminating environmental risks, and reducing environmental pollution.

[0037] In some embodiments, the separator lower liquid inlet 100 is connected to the lower liquid discharge pipe 7, and the high-pressure condensate containing coal gas discharged from the oil-water separator, oil remover, gas-gas mixer, raw gas preheater, first-stage water spray system, second-stage water spray system and process condensate tank in the conversion system in the chemical workshop can enter the gas-liquid separator 1 through the lower liquid discharge pipe 7 for effective gas-liquid separation.

[0038] like Figure 1 As shown, in some embodiments, a safety valve 103 is provided at the top of the gas-liquid separator 1, and the lower liquid collection and odor control device further includes a burner 4, the feed port of which is connected to the safety valve 103 via a pipeline. When the pressure within the gas-liquid separator 1 exceeds a preset value, the safety valve 103 opens, and the gas separated from the gas-liquid separator 1 can directly enter the burner 4 through the pipeline for combustion. The burner 4 can be a torch, etc., and the safety valve 103 can prevent the risk of equipment overpressure.

[0039] like Figure 3 As shown, in some embodiments, a water supply port 301 is further provided on the water seal tank 3, and the lower liquid collection and odor control device further includes a water supply pipe 8 connected to the water supply port 301, and clean water is injected into the water seal tank 3 through the water supply pipe 8.

[0040] The interior of the water seal tank 3 is divided into two independent cavities, including a first cavity 304 and a second cavity 305 . The first cavity 304 and the second cavity 305 are connected via an overflow pipe 306 .

[0041] The tank body lower liquid inlet 300 and the water replenishment port 301 are respectively arranged on the cavity top of the first cavity 304 , and the tank body lower liquid inlet 300 and the water replenishment port 301 are respectively connected to a pipe, and the tank body lower liquid outlet 308 is located on the side wall of the second cavity 305 .

[0042] The liquid separated in the gas-liquid separator 1 flows into the first cavity 304 through the lower liquid inlet 300 of the tank body, and is mixed with the water flowing into the first cavity 304 through the water replenishment port 301 to achieve water sealing. As the mixed liquid in the first cavity 304 continues to increase, the mixed liquid will flow into the second cavity 305 through the overflow pipe 306, and finally flow out of the second cavity 305 through the lower liquid outlet 308 of the tank body.

[0043] In some embodiments, the water seal tank 3 is further provided with a slag discharge port 307, a vent port 302, and a backup port 303. The slag discharge port 307 is in communication with the first cavity 304 and is used to discharge residue deposited at the bottom of the first cavity 304. The vent port 302 and the backup port 303 are respectively in communication with the second cavity 305. The vent port 302 is used to discharge excess air in the water seal tank 3 when water is injected into the first cavity 304. The backup port 303 is used to inject other liquids into the second cavity 305.

[0044] like Figure 1 As shown, in some embodiments, the gas-liquid separator 1 is provided with an automatic liquid level adjustment system. The automatic liquid level adjustment system can automatically adjust the height of the lower liquid containing VOCs and odorous gases, thereby ensuring effective gas-liquid separation. For example, the automatic liquid level adjustment system includes a liquid level gauge provided on the gas-liquid separator 1 and a switch valve provided on the lower liquid inlet 100 of the separator. The liquid level gauge is electrically connected to the control valve. When the liquid level gauge detects that the lower liquid level in the separator is too high, the switch valve can be controlled to open or close, thereby accelerating the discharge of the lower liquid.

[0045] like Figure 1 As shown, in some embodiments, the lower liquid collection and odor control device further includes a condensate recovery tank 9. The condensate tank 2 has a lower liquid outlet connected to the condensate recovery tank 9. The condensate stored in the condensate tank 2 flows through the lower liquid outlet into the condensate recovery tank 9 for recycling, thereby meeting environmental protection requirements and reducing environmental pollution. The condensate recovery tank 9 can be a chemical product blast cooling scraping tank.

[0046] Preferably, the condensate recovery tank 9 is a chemical product drum cooling scraping tank.

[0047] In some embodiments, a breathing valve 11 is provided on the condensate tank 2. The breathing valve 11 can ensure that the condensate tank 2 does not inhale air when it is under a slightly negative pressure, and can release air when the pressure is high.

[0048] In some embodiments, the gas-liquid separator 1, combustible gas pipeline 6, water seal tank 3, condensate tank 2 and deodorization device 10 are all made of stainless steel S30408, which will not cause deformation or corrosion damage to the device body of this embodiment due to external production and operation changes.

[0049] The above description is intended to be illustrative rather than restrictive, and those skilled in the art may make changes, modifications, substitutions, and variations to the above embodiments within the scope of the present disclosure. Furthermore, the above examples (or one or more of them) may be used in combination with each other, and it is contemplated that these embodiments may be combined with each other in various combinations or permutations.

Claims

1. A device for collecting odor from lower liquid, characterized in that: Including gas-liquid separator, combustible gas pipeline, water seal tank, condensate tank and deodorization device: The gas-liquid separator has a demister inside, a separator lower liquid inlet is provided on the side wall of the gas-liquid separator, the separator lower liquid inlet is located below the demister, the gas-liquid separator has a separator lower liquid outlet at the bottom and a separator gas outlet at the top; The combustible gas pipeline is connected to the gas outlet of the separator; The water seal tank has at least a tank body lower liquid inlet and a tank body lower liquid outlet, and the tank body lower liquid inlet is connected to the separator lower liquid outlet; The condensate tank has a tank lower liquid inlet and a tank gas outlet, and the tank lower liquid inlet is connected to the tank lower liquid outlet; The deodorizing device is connected to the gas outlet of the box.

2. The device for treating odor from collected lower liquid according to claim 1, characterized in that: A safety valve is provided on the top of the gas-liquid separator.

3. The device for treating odor from collected lower liquid according to claim 2, characterized in that: The lower liquid collection odor treatment device also includes a burner, and the feed port of the burner is connected to the safety valve through a pipeline.

4. The device for treating odor from collected lower liquid according to claim 3, characterized in that: The water seal groove is also provided with a water supply port, and the lower liquid collection and odor treatment device also includes a water supply pipe connected to the water supply port.

5. The device for treating odor from collected lower liquid according to claim 1, characterized in that: The gas-liquid separator is provided with an automatic liquid level adjustment system.

6. The device for treating odor from collected lower liquid according to claim 1, characterized in that: The lower liquid collection and odor treatment device also includes a condensate recovery tank. The condensate tank has a lower liquid outlet of the tank body, and the lower liquid outlet of the tank body is connected to the condensate recovery tank.

7. The device for treating odor from collected lower liquid according to claim 6, characterized in that: The condensate recovery tank is a chemical product drum cooling scraping tank.

8. The device for treating odor from collected lower liquid according to claim 6, characterized in that: The condensate tank is provided with a breathing valve.

9. The device for treating odor from collected lower liquid according to claim 1, characterized in that: The gas-liquid separator, the combustible gas pipeline, the water seal tank, the condensate tank and the deodorizing device are all made of stainless steel.

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