CN211146528U - Automatic drainage device of flue negative pressure - Google Patents
Automatic drainage device of flue negative pressure Download PDFInfo
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- CN211146528U CN211146528U CN201921219182.6U CN201921219182U CN211146528U CN 211146528 U CN211146528 U CN 211146528U CN 201921219182 U CN201921219182 U CN 201921219182U CN 211146528 U CN211146528 U CN 211146528U
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Abstract
The utility model discloses an automatic drainage device of flue negative pressure, including the water storage tank, level sensor and high pressure nozzle, water storage tank upper end has an inlet tube and three-way pipe, be equipped with inlet valve on the inlet tube, inside inlet tube upper end intercommunication flue, a port intercommunication water storage tank of three-way pipe, be equipped with the atmospheric valve on another port of three-way pipe, the third port of three-way pipe passes through inside the ventilation valve intercommunication flue, high pressure nozzle locates on the lateral wall of water storage tank and sets up towards the water storage tank inner chamber, high pressure nozzle's input inserts high pressure water pump, high pressure water pump's output is by a high pressure valve control switch, the bottom of water storage tank is equipped with the drain pipe, be equipped with drainage normally closed valve on the drain pipe, be equipped with high level, meso position and low level probe that relay controller controlled on the inner wall of water storage tank respectively by high-to low, inlet valve, The atmospheric valve, the vent valve, the … high-pressure valve and the drainage normally-closed valve effectively eliminate the problems in negative pressure drainage.
Description
Technical Field
The invention relates to the technical field of flue gas sewage treatment, in particular to a negative pressure automatic drainage device for a flue.
Background
At present, the outlet of a desulfurization draught fan or a flue close to a chimney contains a large amount of moisture, the moisture is condensed in a horizontal flue, and the moisture is not smoothly discharged due to the fact that a drainage structure is not arranged, so that the horizontal flue accumulates a large amount of water, and the bottom of the horizontal flue is corroded and the like. The horizontal flue can be designed into a certain gradient to collect accumulated water in the flue, but the conventional method depends on manual drainage, and after a period of time, the pipeline is easy to block and the like. In actual work, the negative pressure environment of the flue can be damaged at the opening of the flue, and sewage is not easy to discharge without opening.
Disclosure of Invention
The invention aims to provide a negative-pressure automatic drainage device for a flue, which can automatically drain sewage in the flue under the condition of ensuring a negative-pressure environment of the flue.
The technical scheme adopted by the invention is as follows:
a negative pressure automatic drainage device for a flue comprises a water storage tank, a liquid level sensor and a high-pressure nozzle, wherein the upper end of the water storage tank is provided with a water inlet pipe and a three-way pipe, a water inlet valve is arranged on the water inlet pipe, the upper end of the water inlet pipe is arranged at the bottom of the flue and communicated with the inside of the flue, one port of the three-way pipe is communicated with the water storage tank, the other port of the three-way pipe is provided with an atmospheric valve, a vent valve is arranged on the third port of the three-way pipe, the third port of the three-way pipe is communicated with the inside of the flue through the vent valve, the high-pressure nozzle is arranged on the side wall of the water storage tank, the high-pressure nozzle is communicated with and arranged towards the inner cavity of the water storage tank, the input end of the high-pressure nozzle is connected with a high-pressure water pump, the output of the, the high-level liquid level probe, the middle-level liquid level probe and the low-level liquid level probe are all connected to a relay controller, the output end of the relay controller is respectively connected with the water inlet valve, the atmosphere valve, the vent valve, the high-pressure valve and the drainage normally closed valve, and the relay controller respectively controls the on-off of the water inlet valve, the atmosphere valve, the vent valve, the high-pressure valve and the drainage normally closed valve according to the trigger signals of the high-level liquid level probe, the middle-level liquid level probe and the low-level liquid level probe.
Furthermore, the water inlet valve and the vent valve are mutually linked and are opened and closed to form a first valve group, and the first valve group is a normally open valve; the atmospheric valve, the high-pressure valve and the drainage normally-closed valve are mutually linked and are opened and closed together to form a second valve group, and the second valve group is a normally-closed valve group; the opening and closing states of the first valve group and the second valve group are opposite.
Furthermore, the relay controller is a liquid level relay, the high-level liquid level probe, the middle-level liquid level probe and the low-level liquid level probe are respectively connected with three liquid probe input ends of the liquid level relay, the first valve group is electrically connected with a normally open switch port of the liquid level relay, and the second valve group is electrically connected with a normally closed switch port of the liquid level relay.
Furthermore, the flue is funnel mechanism corresponding to the upper end of the water inlet pipe.
Further, the three-way pipe is a T-shaped three-way pipe.
Further, the liquid level relay is a liquid level relay of a model C61F-GP.
Furthermore, the bottom of the water storage tank is funnel-shaped.
Furthermore, the high-pressure spray head is connected to a high-pressure water pump, the high-pressure spray head is a belt-type three-way high-pressure spray head, and the three spray heads are uniformly distributed on the side wall of the water storage tank.
By adopting the technical scheme, when water is not discharged, the relay controller controls the water inlet valve and the vent valve to be opened, other valves are closed, the air pressure in the water storage tank is the same as that in the flue, and wastewater flows into the water storage tank from the flue under the action of gravity. When the water level reaches the middle level probe, the relay controller controls the water inlet valve and the vent valve to be closed, other valves are opened, the air pressure in the water storage tank is communicated with the atmosphere through the atmosphere valve, and water is discharged through the water discharging normally-closed valve under the action of gravity. And simultaneously opening the high-pressure valve to control the high-pressure spray head to stir the impurities in the water storage tank and discharge the impurities through the water discharge normally-closed valve. When the water surface is lower than the liquid level probe, the relay controller controls the atmosphere valve, the high-pressure valve and the drainage normally-closed valve to be closed, and the water inlet valve and the vent valve are opened, so that a working cycle is completed.
The utility model discloses what adopt in flue mouth below is inclosed water-collecting device, can effectively eliminate the problem that the negative pressure exists to and eliminate the suck-back phenomenon that probably appears. The adopted three-type high-pressure spray nozzle removes sewage from the interior of the water storage tank, forms water vortex in the closed water collecting device and erodes waste liquid adhered to the pipe wall, and the anti-blocking problem is efficiently realized. The utility model discloses the operation is got up very simply, can solve the wasting time and energy of long assembly line, and problem with high costs has also avoided artifical long-time observation problem.
Drawings
The invention is described in further detail below with reference to the accompanying drawings and the detailed description;
FIG. 1 is a schematic structural diagram of a negative pressure automatic drainage device for a flue of the present invention;
fig. 2 is a schematic diagram of the control principle of the relay controller of the present invention.
Detailed Description
As shown in figure 1 or 2, the invention discloses a flue negative pressure automatic drainage device, which comprises a water storage tank 1, a liquid level sensor and a high pressure spray nozzle 2, wherein the upper end of the water storage tank 1 is provided with a water inlet pipe 3 and a three-way pipe 4, the water inlet pipe 3 is provided with a water inlet valve 31, the upper end of the water inlet pipe 3 is arranged at the bottom of the flue and communicated with the inside of the flue 10, one port of the three-way pipe 4 is communicated with the water storage tank 1, the other port of the three-way pipe 4 is provided with an atmospheric valve 41, the third port of the three-way pipe 4 is provided with a vent valve 42, the third port of the three-way pipe 4 is communicated with the inside of the flue 10 through the vent valve 42, the high pressure spray nozzle 2 is arranged on the side wall of the water storage tank 1, the high pressure spray nozzle 2 is communicated with and arranged towards the inner cavity of the water storage tank 1, the drain pipe 5 is provided with a drain normally closed valve 51, the inner wall of the water storage tank 1 is provided with a high level liquid level probe, a middle level liquid level probe and a low level liquid level probe from high to low respectively, the high level liquid level probe, the middle level liquid level probe and the low level liquid level probe are all connected to a relay controller 6, the output end of the relay controller 6 is connected with the water inlet valve 31, the atmosphere valve 41, the vent valve 42, the high pressure valve and the drain normally closed valve 51 respectively, and the relay controller 6 controls the switch of the water inlet valve 31, the atmosphere valve 41, the vent valve 42, the high pressure valve and the drain normally closed valve 51 according to the trigger signals of the high level liquid level probe, the middle level liquid level probe and the low level liquid level probe.
Furthermore, the two valves of the water inlet valve 31 and the vent valve 42 are mutually linked and are opened and closed together to form a first valve group, and the first valve group is a normally open valve; the atmospheric valve 41, the high-pressure valve and the drainage normally-closed valve 51 are mutually linked and are opened and closed together to form a second valve group, and the second valve group is a normally-closed valve group; the opening and closing states of the first valve group and the second valve group are opposite.
Further, as shown in fig. 2, the relay controller 6 is a liquid level relay, the high level liquid level probe, the middle level liquid level probe and the low level liquid level probe are respectively connected to three liquid probe input ends of the liquid level relay, the first valve set is electrically connected to a normally open switch port of the liquid level relay, and the second valve set is electrically connected to a normally closed switch port of the liquid level relay.
A relay is an electric control device that generates a predetermined step change in a controlled amount in an electric output circuit when a change in an input amount (excitation amount) meets a predetermined requirement. It has an interactive relationship between a control system (also called an input loop) and a controlled system (also called an output loop). It is commonly used in automated control circuits, which are actually a "recloser" that uses low current to control high current operation. Therefore, the circuit plays the roles of automatic regulation, safety protection, circuit conversion and the like.
Further, the liquid level relay is a liquid level relay of a model C61F-GP. The specific wiring is as follows: the power interface wiring of the liquid level relay is connected with an air switch (the air switch is used for protecting the circuit), and then the air switch is externally connected with a 220v power supply; the load port of the liquid level relay is connected with two wires to be connected with the junction box, one input end of the junction box is connected with the live wire, the other input end of the junction box is connected with the zero wire, and the output end of the junction box is connected with the three normally closed electromagnetic valves in parallel and then connected with the normally open electromagnetic valve in parallel.
Liquid level relay has three probe, and No. 1 probe connects liquid level relay C end, puts at the least significant end: the No. 2 probe is connected with the D end of the liquid level relay and is placed in the middle; the No. 3 probe is connected with the E end of the liquid level relay and is placed at the uppermost position and is spaced from the No. 2 probe by more than 2 cm.
During specific work, 1, an external 220v power supply is switched on and off by air. 2. And closing the air switch and adjusting the liquid level relay to an automatic gear. 3. The water inlet valve 31 and the air vent valve 42 are opened, other valves are closed, the air pressure in the water storage tank 1 is the same as that in the water storage tank 10, and the wastewater flows into the water storage tank 1 from the water storage tank 10 under the action of gravity. When the water level reaches the middle level probe, the relay controller 6 controls the water inlet valve 31 and the vent valve 42 to be closed, other valves are opened, the air pressure in the water storage tank 1 is communicated with the atmosphere through the atmosphere valve 41, and water is discharged through the water discharging normally-closed valve 51 under the action of gravity. Simultaneously, the high-pressure valve is opened to control the high-pressure nozzle 2 to stir the impurities in the water storage tank 1 and discharge the impurities through the normally closed drain valve 51. When the water level is lower than the liquid level probe, the relay controller 6 controls the atmosphere valve 41, the high-pressure valve and the drain normally-closed valve 51 to be closed, and the water inlet valve 31 and the vent valve 42 to be opened, so that a work cycle is completed.
Furthermore, 10 is a funnel mechanism corresponding to the upper end of the water inlet pipe 3.
Further, the tee pipe 4 is a T-shaped tee pipe.
Further, the bottom of the water storage tank 1 is funnel-shaped.
Furthermore, the high-pressure spray head 2 is connected to a high-pressure water pump, the high-pressure spray head 2 is a one-belt-three type high-pressure spray head, and the three spray heads are uniformly distributed on the side wall of the water storage tank 1.
By adopting the technical scheme, when water is not discharged, the relay controller 6 controls the water inlet valve 31 and the air vent valve 42 to be opened, other valves are closed, the air pressure in the water storage tank 1 is the same as that in the water storage tank 10, and wastewater flows into the water storage tank 1 from the water storage tank 10 under the action of gravity. When the water level reaches the middle level probe, the relay controller 6 controls the water inlet valve 31 and the vent valve 42 to be closed, other valves are opened, the air pressure in the water storage tank 1 is communicated with the atmosphere through the atmosphere valve 41, and water is discharged through the water discharging normally-closed valve 51 under the action of gravity. And simultaneously opening the high-pressure valve to control the high-pressure nozzle to stir the impurities in the water storage tank 1 and discharge the impurities through the normally closed drain valve 51. When the water level is lower than the liquid level probe, the relay controller 6 controls the atmosphere valve 41, the high-pressure valve and the drain normally-closed valve 51 to be closed, and the water inlet valve 31 and the vent valve 42 to be opened, so that a work cycle is completed.
The utility model discloses what adopt in flue mouth below is inclosed water-collecting device, can effectively eliminate the problem that the negative pressure exists to and eliminate the suck-back phenomenon that probably appears. The adopted three-type high-pressure spray nozzle removes sewage from the interior of the water storage tank 1, forms water vortex in the closed water collecting device and washes waste liquid adhered to the pipe wall, and effectively achieves the anti-blocking problem. The utility model discloses the operation is got up very simply, can solve the wasting time and energy of long assembly line, and problem with high costs has also avoided artifical long-time observation problem.
Claims (8)
1. The utility model provides a flue negative pressure automatic drainage device which characterized in that: the high-pressure water-level three-way pipe type water storage device comprises a water storage tank, a liquid level sensor and a high-pressure sprayer, wherein a water inlet pipe and a three-way pipe are arranged at the upper end of the water storage tank, a water inlet valve is arranged on the water inlet pipe, the upper end of the water inlet pipe is arranged at the bottom of a flue and communicated with the inside of the flue, one port of the three-way pipe is communicated with the water storage tank, an atmospheric valve is arranged at the other port of the three-way pipe, a vent valve is arranged at the third port of the three-way pipe, the third port of the three-way pipe is communicated with the inside of the flue through the vent valve, the high-pressure sprayer is arranged on the side wall of the water storage tank, the high-pressure sprayer is communicated with an inner cavity of the water storage tank, the input end of the high-pressure sprayer is connected with a high-pressure water, The middle level probe and the low level probe are connected with a relay controller, the output end of the relay controller is respectively connected with a water inlet valve, an atmosphere valve, a vent valve, a high pressure valve and a drainage normally closed valve, and the relay controller respectively controls the opening and closing of the water inlet valve, the atmosphere valve, the vent valve, the high pressure valve and the drainage normally closed valve according to the trigger signals of the high level probe, the middle level probe and the low level probe.
2. The automatic drainage device under negative pressure of the flue of claim 1, which is characterized in that: the water inlet valve and the vent valve are mutually linked and are opened and closed together to form a first valve group, and the first valve group is a normally open valve; the atmospheric valve, the high-pressure valve and the drainage normally-closed valve are mutually linked and are opened and closed together to form a second valve group, and the second valve group is a normally-closed valve group; the opening and closing states of the first valve group and the second valve group are opposite.
3. The automatic drainage device under negative pressure for the flue of claim 2, wherein: the relay controller is a liquid level relay, the high-level liquid level probe, the middle-level liquid level probe and the low-level liquid level probe are respectively connected with three liquid probe input ends of the liquid level relay, the first valve group is electrically connected with a normally open switch port of the liquid level relay, and the second valve group is electrically connected with a normally closed switch port of the liquid level relay.
4. The automatic drainage device under negative pressure of the flue of claim 1, which is characterized in that: the flue is funnel-shaped corresponding to the upper end of the water inlet pipe.
5. The automatic drainage device under negative pressure of the flue of claim 1, which is characterized in that: the three-way pipe is a T-shaped three-way pipe.
6. The automatic drainage device under negative pressure of the flue of claim 1, which is characterized in that: the liquid level relay is a liquid level relay of a model C61F-GP.
7. The automatic drainage device under negative pressure of the flue of claim 1, which is characterized in that: the bottom of the water storage tank is funnel-shaped.
8. The automatic drainage device under negative pressure of the flue of claim 1, which is characterized in that: the high-pressure spray nozzle is connected to a high-pressure water pump, the high-pressure spray nozzle is a one-belt-three type high-pressure spray nozzle, and the three spray nozzles are uniformly distributed on the side wall of the water storage tank.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921219182.6U CN211146528U (en) | 2019-07-31 | 2019-07-31 | Automatic drainage device of flue negative pressure |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921219182.6U CN211146528U (en) | 2019-07-31 | 2019-07-31 | Automatic drainage device of flue negative pressure |
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| CN211146528U true CN211146528U (en) | 2020-07-31 |
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| CN201921219182.6U Active CN211146528U (en) | 2019-07-31 | 2019-07-31 | Automatic drainage device of flue negative pressure |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112066493A (en) * | 2020-08-05 | 2020-12-11 | 广东申菱环境系统股份有限公司 | Indirect evaporative cooling device with good air conductivity and method |
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2019
- 2019-07-31 CN CN201921219182.6U patent/CN211146528U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112066493A (en) * | 2020-08-05 | 2020-12-11 | 广东申菱环境系统股份有限公司 | Indirect evaporative cooling device with good air conductivity and method |
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