CN209762729U - Pipeline sewage discharging device - Google Patents
Pipeline sewage discharging device Download PDFInfo
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- CN209762729U CN209762729U CN201920412461.8U CN201920412461U CN209762729U CN 209762729 U CN209762729 U CN 209762729U CN 201920412461 U CN201920412461 U CN 201920412461U CN 209762729 U CN209762729 U CN 209762729U
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Abstract
The utility model provides a pipeline sewage discharge device, belonging to the field of gas pipeline sewage discharge, comprising a sewage discharge pipe, wherein one end of the sewage discharge pipe is communicated with a gas pipeline, and is communicated with a blind plate valve adjacent to the position for discharging sewage; one end of the nitrogen pipe is communicated with the blow-off pipe, and the other end of the nitrogen pipe is communicated with a pressurized nitrogen source; the explosion-proof electromagnetic valve group and the monitoring equipment are arranged on the blow-off pipe and the nitrogen pipe; the PLC is connected with and controls the explosion-proof electromagnetic valve group and the monitoring equipment; the explosion-proof electromagnetic valve group comprises a first explosion-proof electromagnetic valve and a fourth explosion-proof electromagnetic valve which are sequentially arranged along the length direction of the sewage discharge pipe; the third explosion prevention electromagnetic valve is arranged on the nitrogen pipe; the monitoring equipment comprises an electric contact pressure gauge which is arranged on the nitrogen pipe and is positioned between the third explosion prevention electromagnetic valve and the blow-off pipe; and the liquid flowmeter is arranged on the drain pipe and is positioned between the first explosion-proof electromagnetic valve and the fourth explosion-proof electromagnetic valve. The utility model discloses simple structure, easily operation can clear up the impurity in the sewage pipes, guarantees the blowdown ability of device self.
Description
Technical Field
The utility model belongs to the steel industry gas pipeline blowdown field, more specifically say, relate to a pipeline blowdown device.
Background
When the gas pipe network is used for maintenance of end equipment facilities, leakage repair of pipelines and the like, the gas pipe network needs to be reliably blocked, and at present, a blind plate valve is widely applied and can be used for reliably blocking an energy medium pipe network. Since the gas contains water and is in a gas state at high temperature, as the gas is conveyed by a pipeline, the gas gradually drops in temperature, a part of liquid is condensed, and the part of liquid in the gas pipeline network is extremely corrosive and is generally called sewage. Sewage can flow to sewage pipes in the pipeline, but when the blind plate valve was closed, the blind plate valve can cut off the sewage flow to at a large amount of sewage of blind plate valve one side gathering. The sewage usually contains insoluble impurities, and the insoluble impurities are attached to the pipe wall, so that the pipe orifice of the sewage discharge device can be blocked, the sewage discharge capacity of the sewage discharge device is reduced, and further the corrosion of a gas pipeline is caused.
SUMMERY OF THE UTILITY MODEL
an object of the utility model is to provide a pipeline blowdown device aims at solving the problem that the pipeline stockpiles up sewage and sewage pipes easily and blocks up under the blind plate valve closed condition.
In order to achieve the above object, the utility model adopts the following technical scheme: provided is a pipe sewage draining device, including:
one end of the sewage discharge pipe is communicated with the gas pipeline and is communicated with the adjacent blind plate valve for discharging sewage;
One end of the nitrogen pipe is communicated with the blow-off pipe, and the other end of the nitrogen pipe is communicated with a pressurized nitrogen source;
The explosion-proof electromagnetic valve group is provided with a first explosion-proof electromagnetic valve and a fourth explosion-proof electromagnetic valve which are sequentially arranged along the length direction of the sewage discharge pipe, the communication position of the nitrogen pipe and the sewage discharge pipe is positioned between the first explosion-proof electromagnetic valve and the fourth explosion-proof electromagnetic valve, and the explosion-proof electromagnetic valve group is also provided with a third explosion-proof electromagnetic valve which is arranged on the nitrogen pipe;
the monitoring equipment is provided with an electric contact pressure gauge, a liquid flow meter and a liquid flow meter, wherein the electric contact pressure gauge is arranged on the nitrogen pipe and is positioned between the third explosion-proof electromagnetic valve and the drain pipe;
The PLC is used for connecting and controlling the explosion-proof electromagnetic valve group and the monitoring equipment;
Further, the pipeline sewage discharging device further comprises a second explosion-proof electromagnetic valve, and the second explosion-proof electromagnetic valve is arranged on the sewage discharging pipe and is positioned between the first explosion-proof electromagnetic valve and the nitrogen pipe.
Furthermore, the communicating end of the sewage discharge pipe and the gas pipeline is trumpet-shaped.
Furthermore, the blow-off pipe and the nitrogen pipe are made of corrosion-resistant materials.
Further, the liquid flow meter is provided with a meter, and the meter is provided with a liquid crystal display screen.
Further, the maximum pressure value of the electric contact pressure gauge is 1.5-2 times of the maximum pressure value in the gas pipeline.
Further, the PLC is electrically connected with the explosion-proof electromagnetic valve and the monitoring equipment through an explosion-proof cable.
further, a single PLC is electrically connected with a plurality of groups of explosion-proof electromagnetic valves and the monitoring equipment.
Further, the other end of the sewage discharge pipe is a sewage discharge outlet, and the sewage discharge outlet is connected with a U-shaped water seal.
The utility model provides a pair of pipeline blowdown device's beneficial effect lies in: compared with the prior art, in the pipeline sewage discharging device, the sewage discharging pipe is arranged close to the blind plate valve, so that the sewage in the pipe can be collected and discharged in time when the blind plate valve is closed; the liquid flowmeter and the electric contact pressure gauge feed back the change of the flow and the pressure in the pipeline to the PLC, and the PLC cleans the blow-off pipe by controlling an explosion-proof electromagnetic valve group on the pipeline to ensure the blow-off capacity of the whole set of device; the device only comprises a pipeline, a liquid flowmeter, an electric contact pressure gauge and an explosion-proof electromagnetic valve, and has simple integral structure and easy operation and maintenance.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings required for the embodiments or the prior art descriptions will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings without creative efforts.
Fig. 1 is a schematic structural diagram of a pipeline sewage disposal device provided by an embodiment of the present invention.
In the figure: 1. a gas pipeline; 2. a blind plate valve; 3. a blow-off pipe; 4. a nitrogen gas pipe; 5. an explosion-proof electromagnetic valve set; 51. a first explosion-proof solenoid valve; 52. a second explosion-proof solenoid valve; 53. a third explosion prevention electromagnetic valve; 54. a fourth explosion-proof solenoid valve; 6. monitoring equipment; 61. a liquid flow meter; 62. an electric contact pressure gauge; 7. a sewage draining outlet.
Detailed Description
In order to make the technical problem, technical solution and advantageous effects to be solved by the present invention more clearly understood, the following description is given in conjunction with the accompanying drawings and embodiments to illustrate the present invention in further detail. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.
Referring to fig. 1, a pipeline sewage disposal device according to the present invention will now be described. The pipeline sewage draining device comprises: the device comprises a blow-off pipe 3, a nitrogen pipe 4, an explosion-proof electromagnetic valve group 5, a monitoring device 6 and a PLC. One end of the blow-off pipe 3 is communicated with the gas pipeline 1 and is communicated with the adjacent blind plate valve 2 for discharging sewage; one end of the nitrogen pipe 4 is communicated with the blow-off pipe 3, and the other end is communicated with a pressurized nitrogen source; the explosion-proof electromagnetic valve group 5 and the monitoring equipment 6 are arranged on the sewage discharge pipe 3 and the nitrogen pipe 4; the PLC is connected with the explosion-proof electromagnetic valve group 5 and the monitoring equipment 6; the explosion-proof electromagnetic valve group comprises a first explosion-proof electromagnetic valve 51, a fourth explosion-proof electromagnetic valve 54 and a third explosion-proof electromagnetic valve 53, wherein the first explosion-proof electromagnetic valve and the fourth explosion-proof electromagnetic valve 54 are sequentially arranged along the length direction of the sewage discharge pipe 3; the monitoring device 6 comprises an electric contact pressure gauge 62 which is arranged on the nitrogen pipe 4 and is positioned between the third explosion-proof electromagnetic valve 53 and the sewage pipe 3, and a liquid flow meter 61 which is arranged on the sewage pipe 3 and is positioned between the first explosion-proof electromagnetic valve 51 and the fourth explosion-proof electromagnetic valve 54; the communication position of the nitrogen pipe 4 and the sewage draining pipe 3 is positioned between the first explosion-proof electromagnetic valve 51 and the fourth explosion-proof electromagnetic valve 54.
When the gas pipe network carries out the work such as the maintenance of terminal equipment facilities, pipeline leak repairing, the blind plate valve 2 on the gas pipeline 1 is closed, and the sewage with corrosive impurities is accumulated on the two sides of the blind plate valve 2. The utility model provides a pair of pipeline blowdown device compares with prior art: close the third explosion-proof solenoid valve 53 through PLC, open first explosion-proof solenoid valve 51 and fourth explosion-proof solenoid valve 54, the blow off pipe 3 begins the blowdown water, because the blow off pipe 3 is close to the setting of blind plate valve 2, the sewage of blind plate valve 2 both sides can in time be discharged. When the sewage pipe 3 needs to be cleaned, the flow of sewage in the pipe is small, the liquid flowmeter 61 transmits a monitoring value to the PLC, when the flow is equal to or smaller than a preset value, the PLC sends a signal, the fourth explosion-proof electromagnetic valve 54 is closed, the first explosion-proof electromagnetic valve 51 and the third explosion-proof electromagnetic valve 53 are opened, nitrogen is introduced into the nitrogen pipe 4 from a pressurized nitrogen source, the electric contact pressure gauge 52 monitors the pressure in the pipe, when the pressure reaches a low preset value and is greater than the pressure in the gas pipeline 1, the nitrogen blows off deposited plugs at the communication part of the sewage pipe 3 and the gas pipeline 1, after 30 seconds, the PLC sends a signal to close the third explosion-proof electromagnetic valve 8, opens the first explosion-proof electromagnetic valve 51 and the fourth explosion-proof electromagnetic valve 54 and starts to discharge sewage; when the sewage outlet 10 of the sewage discharge pipe 3 needs to be treated, the PLC is controlled to send a signal, the first explosion-proof electromagnetic valve 5 is closed, the fourth explosion-proof electromagnetic valve 54 and the third explosion-proof electromagnetic valve 53 are opened, nitrogen is introduced into the nitrogen pipe 4 from a pressurized nitrogen source, and attachments at the sewage outlet 7 can be cleaned; the utility model provides a sewage device is arranged to pipeline can not only discharge the sewage in the gas pipeline 1, can also clear up the pipeline of self, keeps device efficient blowdown ability.
As a specific embodiment of a pipeline sewage discharging device provided by the utility model, please refer to fig. 1, the pipeline sewage discharging device further includes a second explosion-proof solenoid valve 52, and the second explosion-proof solenoid valve 52 is arranged on the sewage discharging pipe 3 and is located between the first explosion-proof solenoid valve 51 and the nitrogen gas pipe 4. The two anti-explosion electromagnetic valves can prevent the coal gas in the coal gas pipeline 1 from entering the sewage discharging device when the whole sewage discharging device does not work, so that the coal gas is prevented from being discharged into the atmosphere through the sewage discharging device to cause environmental pollution.
As a specific implementation manner of the embodiment of the present invention, please refer to fig. 1, the communicating end of the sewage pipe 3 and the gas pipeline 1 is horn-shaped. The trumpet-shaped form is favorable for collecting sewage, when the precipitate is gathered at the trumpet-shaped opening end, the sewage can form a vortex at the trumpet-shaped opening when flowing into the sewage discharge pipe 3, the vortex stirs the precipitate, so that the precipitate is not easy to gather, and the trumpet-shaped opening of the sewage discharge pipe 3 can not be easily blocked by the precipitate; when nitrogen is introduced for cleaning, the precipitate can not be sputtered in a large range.
As a specific implementation manner of the embodiment of the present invention, please refer to fig. 1, the sewage pipe 3 and the nitrogen pipe 4 are made of corrosion-resistant materials. The sewage in the gas pipeline 1 can have corrosive impurities, but when the impurities are accumulated in the pipeline too much, the pipeline can be corroded, the pipe made of corrosion-resistant materials is adopted, the corrosion of the sewage to the sewage discharge pipe 3 and the nitrogen pipe 4 can be avoided, and the service life of the whole device is prolonged.
As a specific implementation manner of the embodiment of the present invention, please refer to fig. 1, the liquid flowmeter 61 is equipped with a meter with a liquid crystal display. Liquid crystal display can show liquid flowmeter 61's numerical value, helps the field engineer to judge whether need clear up waste fitting discharging.
As a specific implementation manner of the embodiment of the present invention, please refer to fig. 1, the maximum pressure value of the electric contact pressure gauge 62 is 1.5-2 times of the maximum pressure value in the gas pipeline. Selecting an electric contact pressure gauge 62 with a proper range, and when nitrogen exists in the sewage discharge pipe 3, the gauge needle of the electric contact pressure gauge 62 can obviously rotate, so that the pressure in the sewage discharge pipe 3 can be easily known from the numerical value in the electric contact pressure gauge 62; when the measuring range of the electric contact pressure gauge 62 is appropriate, the set low-level preset value and the set high-level preset value are easier to act, and the sensitivity of the action enables signals to be transmitted to the PLC in time.
As a specific implementation manner of the embodiment of the present invention, please refer to fig. 1, the PLC electrically connects the explosion-proof solenoid valve 5 and the monitoring device 6 through the explosion-proof cable. The explosion-proof cable has the characteristics of low capacitance, difficult charge storage, good shielding performance and antistatic performance, and can ensure the safety of a laying site. Because coal gas is possibly generated in the application occasion of the pollution discharge device, the explosion-proof cable can completely put an end to potential danger brought by electricity.
As a specific implementation of the embodiment of the utility model, the explosion-proof solenoid valve of multiunit 5 and monitoring facilities 6 are connected to single PLC electricity. Each blind plate valve both sides in the gas pipe network respectively are equipped with one set the utility model provides a pipeline pollution discharge apparatus, one set of or many sets of pipeline pollution discharge apparatus of PLC control, with a plurality of PLC settings in a control center, can realize the remote control to all pipeline pollution discharge apparatus in whole gas pipe network, the operating personnel of being convenient for monitors all pipeline pollution discharge apparatus's in whole gas pipe network state in control center.
As a specific implementation mode of the embodiment of the utility model, the other end of the sewage draining pipe 3 is a sewage draining exit 7, and the U-shaped water seal is connected with the sewage draining exit 7. The sewage outlet 7 is connected with a U-shaped water seal, so that the coal gas in the coal gas pipeline 1 can be further ensured not to enter the atmosphere, and sewage can be collected and cannot be discharged at will to pollute the environment.
The above description is only exemplary of the present invention and should not be taken as limiting the scope of the present invention, as any modifications, equivalents, improvements and the like made within the spirit and principles of the present invention are intended to be included within the scope of the present invention.
Claims (9)
1. A pipe sewage draining device, comprising:
One end of the sewage discharge pipe is communicated with the gas pipeline and is communicated with the adjacent blind plate valve for discharging sewage;
One end of the nitrogen pipe is communicated with the blow-off pipe, and the other end of the nitrogen pipe is communicated with a pressurized nitrogen source;
The explosion-proof electromagnetic valve group is provided with a first explosion-proof electromagnetic valve and a fourth explosion-proof electromagnetic valve which are sequentially arranged along the length direction of the sewage discharge pipe, the communication position of the nitrogen pipe and the sewage discharge pipe is positioned between the first explosion-proof electromagnetic valve and the fourth explosion-proof electromagnetic valve, and the explosion-proof electromagnetic valve group is also provided with a third explosion-proof electromagnetic valve which is arranged on the nitrogen pipe;
the monitoring equipment is provided with an electric contact pressure gauge, a liquid flow meter and a liquid flow meter, wherein the electric contact pressure gauge is arranged on the nitrogen pipe and is positioned between the third explosion-proof electromagnetic valve and the drain pipe;
And the PLC is connected with and controls the explosion-proof electromagnetic valve group and the monitoring equipment.
2. the pipe sewage draining device according to claim 1, further comprising a second explosion-proof solenoid valve disposed on the sewage draining pipe and between the first explosion-proof solenoid valve and the nitrogen pipe.
3. the pipe sewage draining device as claimed in claim 2, wherein the communicating end of the sewage draining pipe and the gas pipeline is trumpet-shaped.
4. The pipeline sewage draining device of claim 3 wherein the sewage draining pipe and the nitrogen pipe are both made of corrosion-resistant materials.
5. The plumbing drainage device of claim 4, wherein the liquid flow meter is equipped with a meter having a liquid crystal display.
6. The pipe decontamination device of claim 5, wherein the maximum pressure value of the electro-contact pressure gauge is 1.5-2 times the maximum pressure value in the gas pipe.
7. the pipe sewage draining apparatus of claim 6, wherein said PLC electrically connects said explosion-proof solenoid valve and said monitoring device through an explosion-proof cable.
8. the pipe sewage draining apparatus of claim 7, wherein a single PLC electrically connects a plurality of sets of said explosion-proof solenoid valves and said monitoring devices.
9. The pipeline sewage draining device as claimed in claim 8, wherein the other end of the sewage draining pipe is a sewage draining outlet, and the sewage draining outlet is connected with a U-shaped water seal.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920412461.8U CN209762729U (en) | 2019-03-28 | 2019-03-28 | Pipeline sewage discharging device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920412461.8U CN209762729U (en) | 2019-03-28 | 2019-03-28 | Pipeline sewage discharging device |
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| Publication Number | Publication Date |
|---|---|
| CN209762729U true CN209762729U (en) | 2019-12-10 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920412461.8U Active CN209762729U (en) | 2019-03-28 | 2019-03-28 | Pipeline sewage discharging device |
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| Country | Link |
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| CN (1) | CN209762729U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112517557A (en) * | 2020-12-18 | 2021-03-19 | 河北华丰能源科技发展有限公司 | Online cleaning device for gas pipeline |
-
2019
- 2019-03-28 CN CN201920412461.8U patent/CN209762729U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112517557A (en) * | 2020-12-18 | 2021-03-19 | 河北华丰能源科技发展有限公司 | Online cleaning device for gas pipeline |
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