CN216014456U - Combustible gas warning and removing system - Google Patents
Combustible gas warning and removing system Download PDFInfo
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- CN216014456U CN216014456U CN202121857238.8U CN202121857238U CN216014456U CN 216014456 U CN216014456 U CN 216014456U CN 202121857238 U CN202121857238 U CN 202121857238U CN 216014456 U CN216014456 U CN 216014456U
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Abstract
A combustible gas alarming and removing system belongs to the technical field of sewage treatment. The system comprises a gravity concentration tank, an odor collection tower, an inert gas filling device, a spraying device and a central controller. When the temperature of the gravity concentration tank is too high, the spraying device is started, and the cooling spraying head works to cool the gravity concentration tank. When the combustible gas reaches the explosion limit, starting an alarm device and stopping the residual sludge pump to block a water source; the inert gas charging device is activated, thereby lowering the combustible gas. If inert gas does not come to be added in time, when combustible gas continuously rises to the interval of explosion limit, the explosion-proof fan is opened, and start combustible gas to collect to the foul smell collecting tower in, start spray set and spray the dilution to the foul smell collecting tower, after deodorant layer and active carbon adsorption layer in the combustible gas process foul smell collecting tower, the clean gas of displacement is discharged into the air, thereby reaches the effect of getting rid of. The system can effectively remove combustible gas and avoid explosion.
Description
Technical Field
The utility model relates to a combustible gas alarming and removing system, and belongs to the technical field of sewage treatment.
Background
In a sewage treatment system, a gravity concentration tank is a technological process for further settling solid particles in sludge under the action of gravity. Gravity concentration utilizes the relative density difference between solid particles in sludge and water to realize sludge concentration. For a sewage treatment plant provided with a primary sedimentation tank and a secondary sedimentation tank, the two types of sludge can be mixed and then subjected to gravity concentration. The sludge gravity concentration storage capacity is strong, the operation requirement is general, the operation cost is low, and the power consumption is low; but the occupied area is large, and the sludge is easy to ferment to generate odor; the concentration effect on certain sludge (such as residual activated sludge) is not ideal. Especially, the temperature in summer is high, the combustible gas in the gravity concentration tank easily reaches the explosion limit, explosion accidents occur, the danger and the severity are not imaginable, fragments directly generated by explosion can fly out for hundreds of meters, huge shock waves can be generated, and the destructive power and the killing power are extremely high.
Disclosure of Invention
In order to solve the problems that the temperature is high in summer, the sludge in the gravity concentration tank is fermented, the produced combustible gas exceeds the standard and the like, the utility model provides the combustible gas alarming and removing system, and the combustible gas produced by sludge fermentation is removed in an improved way through a series of technical process treatments.
The technical scheme adopted by the utility model is as follows: a combustible gas alarming and removing system comprises a gravity concentration tank, wherein the gravity concentration tank adopts a motor to drive a shaft with the bottom end provided with a mud scraper, and a gas outlet, a spraying inlet, a sewage inlet and an inert gas inlet are arranged on the gravity concentration tank; the inert gas inlet is connected with an inert gas inflating device through an inert gas pipe, and an inert gas electromagnetic valve is arranged on the inert gas pipe; the sewage inlet is connected to a residual sludge pump through a sludge pipe, and a sludge pump electromagnetic valve is arranged on the sludge pipe; the gas outlet is connected to a bottom gas inlet of the odor collecting tower through an odor pipe and an explosion-proof fan; a deodorization layer and an active adsorption layer are arranged in the odor collection tower, and a top air outlet is arranged at the top of the tower;
the system is also provided with a spraying device and a central controller, wherein the spraying device is connected to a spraying inlet of the gravity concentration tank through a gravity tank pipe and is connected to the odor collecting tower through an odor tower pipe by adopting a spraying pump respectively; the gravity pool electromagnetic valve is arranged on the gravity pool pipe, and the odor tower electromagnetic valve is arranged on the odor tower pipe;
the central controller is electrically connected with the odor tower electromagnetic valve, the gravity tank electromagnetic valve, the sludge pump electromagnetic valve, the inert gas electromagnetic valve, the temperature sensor, the combustible gas alarm and the audible and visual alarm.
The spray pipe in the gravity concentration tank is connected with a cooling spray header, and the spray main pipe in the odor collection tower is connected with a spray branch pipe provided with a dilution spray header.
The utility model has the beneficial effects that: the system comprises a gravity concentration tank, an odor collection tower, an inert gas filling device, a spraying device and a central controller; when the temperature of the gravity concentration tank is too high, the spraying device is started, and the cooling spraying head works to cool the gravity concentration tank. When the combustible gas reaches the explosion limit, the residual sludge pump is stopped, the water source is blocked, and the inert gas filling device is started, so that the combustible gas is reduced. If the inert gas is not added in time, the combustible gas continuously rises to the explosion limit (10% -15%) interval, a signal is transmitted to the central control host, the explosion-proof fan is started, the combustible gas starts to be collected into the odor collecting equipment, the spray pump P1 is started at the moment, the electric valve T3 is started to spray and dilute the odor collecting equipment, the combustible gas passes through the active carbon in the odor collecting equipment, and the replaced clean gas is discharged into the air, so that the removing effect is achieved. This explosion can be avoided by the combustible gas removal system.
Drawings
FIG. 1 is a schematic diagram of a combustible gas alarm and removal system.
Fig. 2 is a connection diagram of the central controller.
In the figure: 1. the device comprises a gravity concentration tank, a gas outlet 1a, a spray inlet 1b, a sewage inlet 1c, a sewage inlet 1d, an inert gas inlet 1e, a spray pipe 1f, a cooling spray header 1g, a motor 1h, a shaft 1j and a mud scraper; 2. inert gas aerating device, 2a, inert gas solenoid valve, 2b, inert gas pipe, 3, odor collection tower, 3a, main spray pipe, 3b, branch spray pipe, 3c, dilution spray header, 3d, deodorization layer, 3e, activated carbon adsorption layer, 3f, top gas outlet, 3g, bottom gas inlet, 4, spray pump, 4a, odor tower solenoid valve, 4b, gravity tank solenoid valve, 4c, gravity tank pipe, 4d, odor tower pipe, 5, residual sludge pump, 5a, sludge pump solenoid valve, 5b, sludge pipe, 6, temperature sensor, 7, combustible gas alarm, 8, audible and visual alarm, 9, explosion-proof fan, 10, central controller.
Detailed Description
The utility model is described below with reference to the accompanying drawings and the detailed description:
fig. 1 and 2 show a combustible gas alarm and removal system, which comprises a gravity concentration tank 1, wherein the gravity concentration tank 1 adopts a motor 1g to drive a shaft 1h with a mud scraper 1j arranged at the bottom end, and a gas outlet 1a, a spraying inlet 1b, a sewage inlet 1c and an inert gas inlet 1d are arranged on the gravity concentration tank 1; the inert gas inlet 1d is connected with the inert gas inflating device 2 through an inert gas pipe 2b, and an inert gas electromagnetic valve 2a is arranged on the inert gas pipe 2 b; the sewage inlet 1c is connected to the excess sludge pump 5 through a sludge pipe 5b, and a sludge pump electromagnetic valve 5a is arranged on the sludge pipe 5 b; the gas outlet 1a is connected to a bottom gas inlet 3g of the odor collection tower 3 through an odor pipe 9a and an explosion-proof fan 9; the odor collection tower 3 is internally provided with a deodorization layer 3d and an active adsorption layer 3e, and the tower top is provided with a top air outlet 3 f.
The system is also provided with a spraying device and a central controller 10, wherein the spraying device adopts a spraying pump 4 to be respectively connected to a spraying inlet 1b of the gravity concentration tank 1 through a gravity tank pipe 4c and connected to the odor collection tower 3 through an odor tower pipe 4 d; the gravity tank pipe 4c is provided with a gravity tank electromagnetic valve 4b, and the odor tower pipe 4d is provided with an odor tower electromagnetic valve 4 a.
The central controller 10 is electrically connected with the odor tower electromagnetic valve 4a, the gravity tank electromagnetic valve 4b, the sludge pump electromagnetic valve 5a, the inert gas electromagnetic valve 2a, the temperature sensor 6, the combustible gas alarm 7 and the audible and visual alarm 8.
The spray pipe 1e in the gravity concentration tank 1 is connected with a cooling spray header 1f, and the spray main pipe 3a in the odor collection tower 3 is connected with a spray branch pipe 3b provided with a dilution spray header 3 c.
When the technical scheme is adopted for working, when the temperature sensor 6 detects that the temperature of the gravity concentration tank 1 reaches 35 ℃, the temperature sensor 6 sends a signal to the central controller 10, the gravity tank electromagnetic valve 4b is opened in the spraying device, the odor tower electromagnetic valve 4a is closed, and meanwhile, the spraying pump 4 is started to spray the gravity concentration tank 1, so that the gravity concentration tank 1 is cooled.
When the gas detected by the combustible gas detection alarm 7 reaches an explosion limit (5% -10%), sending a signal to the central control 10, closing the electromagnetic valve 5a of the sludge pump and the residual sludge pump 5, and blocking a water inlet source; meanwhile, the audible and visual alarm 8 gives an alarm to prompt surrounding staff to leave the site. And simultaneously, the inert gas aerating device 2 is started, and inert gas is aerated into the gravity concentration tank 1, so that combustible gas is reduced. If the inert gas is not added in time, when the combustible gas continuously rises to the interval of explosion limit (10% -15%), a signal is transmitted to the central control 10, the explosion-proof fan 9 is started to collect the combustible gas into the odor collection tower 3, at the moment, the spray pump 4 is started, the electromagnetic valve 4a of the odor collection tower is started to spray and dilute the odor in the odor collection tower 3, and the combustible gas discharges the replaced clean gas into the air after passing through the deodorization layer 3d and the active carbon adsorption layer 3e in the odor collection tower 3.
Claims (2)
1. The utility model provides a combustible gas reports to police and removes system, it includes gravity concentration tank (1), its characterized in that: the gravity concentration tank (1) is driven by a motor (1 g) and provided with a shaft (1 h) of a mud scraper (1 j) at the bottom end, and the gravity concentration tank (1) is provided with a gas outlet (1 a), a spraying inlet (1 b), a sewage inlet (1 c) and an inert gas inlet (1 d); the inert gas inlet (1 d) is connected with an inert gas inflating device (2) through an inert gas pipe (2 b), and an inert gas electromagnetic valve (2 a) is arranged on the inert gas pipe (2 b); the sewage inlet (1 c) is connected to the excess sludge pump (5) through a sludge pipe (5 b), and a sludge pump electromagnetic valve (5 a) is arranged on the sludge pipe (5 b); the gas outlet (1 a) is connected to a bottom gas inlet (3 g) of the odor collection tower (3) through an odor pipe (9 a) and an explosion-proof fan (9); a deodorization layer (3 d) and an active adsorption layer (3 e) are arranged in the odor collection tower (3), and a top air outlet (3 f) is arranged at the top of the tower;
the system is also provided with a spraying device and a central controller (10), wherein the spraying device is connected to a spraying inlet (1 b) of the gravity concentration tank (1) through a gravity tank pipe (4 c) and is connected to the odor collection tower (3) through an odor tower pipe (4 d) by adopting a spraying pump (4); a gravity pool electromagnetic valve (4 b) is arranged on the gravity pool pipe (4 c), and an odor tower electromagnetic valve (4 a) is arranged on the odor tower pipe (4 d);
the central controller (10) is electrically connected with the odor tower electromagnetic valve (4 a), the gravity pool electromagnetic valve (4 b), the sludge pump electromagnetic valve (5 a), the inert gas electromagnetic valve (2 a), the temperature sensor (6), the combustible gas alarm (7) and the audible and visual alarm (8).
2. A combustible gas alarm and removal system according to claim 1 wherein: the gravity concentration tank (1) is internally provided with a spray pipe (1 e) connected with a cooling spray header (1 f), and the odor collection tower (3) is internally provided with a spray main pipe (3 a) connected with a spray branch pipe (3 b) provided with a dilution spray header (3 c).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121857238.8U CN216014456U (en) | 2021-08-10 | 2021-08-10 | Combustible gas warning and removing system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121857238.8U CN216014456U (en) | 2021-08-10 | 2021-08-10 | Combustible gas warning and removing system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN216014456U true CN216014456U (en) | 2022-03-11 |
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ID=80527194
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202121857238.8U Active CN216014456U (en) | 2021-08-10 | 2021-08-10 | Combustible gas warning and removing system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN216014456U (en) |
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2021
- 2021-08-10 CN CN202121857238.8U patent/CN216014456U/en active Active
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