CN212565327U - Negative pressure pipe network monitoring station - Google Patents
Negative pressure pipe network monitoring station Download PDFInfo
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- CN212565327U CN212565327U CN202020907674.0U CN202020907674U CN212565327U CN 212565327 U CN212565327 U CN 212565327U CN 202020907674 U CN202020907674 U CN 202020907674U CN 212565327 U CN212565327 U CN 212565327U
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Abstract
The utility model relates to a negative pressure pipe network monitoring station, including the distribution pipe that is used for inserting negative pressure pipeline, the first end of distribution pipe's first distribution interface connection automatic control distribution valve, the manual distribution valve of second distribution interface connection, automatic control distribution valve is negative pressure control valve, and its control gas circuit interface passes through two-way three-way valve connection negative pressure source or atmosphere, and two-way three-way valve is according to the state of the intraductal negative pressure situation control two-way valve of distribution, and then the work of control negative pressure valve for negative pressure valve control's negative pressure source is equipped with the negative pressure chamber, and its first access connection is used for inserting negative pressure pipeline's first negative pressure connecting pipe, and second access connection negative pressure pump for detect the second pressure sensor's of negative pressure intracavity pressure negative pressure pump controlling means is used for negative pressure pump's control. The product can be connected to the end of a pipeline of a negative pressure system or other positions for eliminating a water plunger.
Description
Technical Field
The utility model relates to a negative pressure pipe network control station, mainly used negative pressure transmission system.
Background
When a main pipeline of the negative pressure transmission system is long, or a peak flow rate is prominent, or a large climbing section exists, a continuous full pipe section, namely a water column plug, is formed in the pipeline due to high water volume concentrated discharge or high lifting requirement, so that an air passage in the pipeline is blocked, air flow is not smooth, negative pressure cannot be transmitted, and the negative pressure strength at the rear end (particularly the tail end) can drop below a certain value (such as minus 0.3 kg), so that negative pressure transmission is influenced.
SUMMERY OF THE UTILITY MODEL
The utility model aims at the above-mentioned defect of prior art, provide a negative pressure pipe network control station to do benefit to the water plunger phenomenon of eliminating.
The technical scheme of the utility model is that: the negative pressure pipe network monitoring station comprises a gas distribution pipe for connecting a negative pressure conveying pipeline, wherein a first gas distribution interface and a second gas distribution interface are arranged on the gas distribution pipe, the first gas distribution interface is connected with the first end of a self-control gas distribution valve, the second gas distribution interface is connected with the first end of a manual gas distribution valve, the second end of the self-control gas distribution valve is communicated with atmosphere or a gas distribution gas source, and the second end of the manual gas distribution valve is communicated with the atmosphere or the gas distribution gas source.
Preferably, the self-control air distribution valve is a negative pressure control valve and is provided with a control air path interface, the control air path interface is connected with an outlet of a two-position three-way valve, a first inlet of the two-position three-way valve is connected with a first control air source, a second inlet of the two-position three-way valve is communicated with the atmosphere or a second control air source, the first control air source is a negative pressure source capable of controlling the opening of the negative pressure control valve, and the second control air source is a positive pressure source capable of controlling the closing of the negative pressure valve.
Preferably, a first pressure sensor for detecting the pressure in the pipe of the gas distribution pipe is provided, and the sensing signal output of the first pressure sensor is used for connecting a control device capable of controlling the two-position three-way valve.
The first pressure sensor may be a first pressure switch.
Preferably, the negative pressure source is provided with a negative pressure cavity, the negative pressure cavity is provided with a first inlet, the first inlet is connected with a first negative pressure connecting pipe used for connecting a negative pressure conveying pipeline, and the first negative pressure connecting pipe is provided with a first one-way valve which only allows airflow to flow from the side of the negative pressure cavity to the side of the negative pressure conveying pipeline.
Preferably, the negative pressure cavity is provided with a second inlet, the second inlet is connected with the air suction port of the negative pressure pump through a second negative pressure connecting pipe, and the second negative pressure connecting pipe is provided with a second one-way valve which only allows air flow to flow from the negative pressure cavity side to the negative pressure pump side.
Preferably, a second pressure sensor is provided for detecting the pressure in the negative pressure cavity, and the sensing signal output of the second pressure sensor is used for accessing a negative pressure pump control device for controlling the negative pressure pump.
The negative pressure pump can be a miniature negative pressure pump, and is preferably powered by a solar power supply device.
The second pressure sensor may be a second pressure switch.
The gas distribution pipe can adopt a manifold form, a main pipe interface of the gas distribution pipe is used for connecting a negative pressure conveying pipeline, and branch pipe interfaces respectively form a first gas distribution interface and a second gas distribution interface which are respectively used for connecting a self-control gas distribution valve and a manual gas distribution valve.
The utility model discloses a working process and beneficial effect are: the gas distribution device is matched with a corresponding monitoring module (control device) for use by arranging a monitoring station, a pressure signal of a negative pressure conveying pipeline at a detection point is obtained by a first pressure switch (which can also adopt other types of pressure sensors) used as a first pressure sensor, the switching state (which can be normally open or normally closed) of the pressure switch is determined by the pressure of the detection point, when the negative pressure value in the gas distribution pipe is reduced to a certain degree (namely the absolute pressure is increased to a certain value), the pressure switch switches the on-off state, the switching signal is used as the control basis of the monitoring device to control the action of a two-position three-way valve, a control gas circuit interface of the negative pressure control valve is communicated with a negative pressure source for control, the negative pressure control valve is opened, the negative pressure pipeline is communicated with the atmosphere at a gas distribution pipe access point, the pressure of the access point is increased, and a water plunger positioned in front is pushed, and the water column plug disappears after the water flows forwards into the negative pressure station.
The monitoring module can determine the time for opening the negative pressure control valve once according to a set value so as to avoid excessive consumption of negative pressure due to the fact that a detection point is communicated with the atmosphere for a long time, if the water plunger does not disappear, after the negative pressure control valve is disconnected, the pressure switch still detects that the negative pressure is insufficient and is still in a switch state of insufficient negative pressure, and the negative pressure control valve can be started again to distribute air (the air is communicated with the atmosphere through the air distribution pipe). The maximum number of times (for example, 3 times) of repeated air distribution in a short time can be controlled through the setting of software or hardware, if the negative pressure of a detection point is still not recovered after the air distribution for many times, the air distribution mode cannot eliminate a water plunger, the air distribution action is not carried out any more, and the fault alarm can be carried out through the control device so as to adopt other treatment to search specific faults or reasons, for example, a pipeline is damaged.
The utility model discloses under can corresponding controlling means's supporting, the negative pressure state of automated inspection check point (can set up the terminal region at negative pressure pipeline usually), automatic distribution under the not enough condition of negative pressure, under the situation that negative pressure system reasonable in design and do not have other troubles, water plunger phenomenon can be eliminated usually effectively to this kind of mode, and is not only convenient, timely, saves the manual work, and the power and the other cost of consuming are all than comparatively few moreover.
Drawings
Fig. 1 is a schematic view of the basic construction of the present invention;
FIG. 2 is a schematic view of a negative pressure source;
FIG. 3 is a schematic view of an embodiment of the present invention, showing no connecting hose or the like for clarity;
fig. 4 is a side view corresponding to fig. 3.
Detailed Description
Referring to fig. 1-4, the negative pressure pipe network monitoring station includes a gas distribution pipe 20 for connecting to a negative pressure conveying pipe (or called negative pressure pipe or negative pressure pipeline, etc.) 10, the connection point may be generally located at or near an end 19 of the end of the negative pressure conveying pipe, the gas distribution pipe is provided with a first gas distribution interface, the first gas distribution interface is connected to a first end of a self-control gas distribution valve, and a second end of the self-control gas distribution valve is communicated with the atmosphere or a gas distribution gas source.
The distribution gas source is usually zero pressure, and can also be positive pressure according to actual conditions and requirements.
The automatic control air distribution valve is opened to communicate the negative pressure conveying pipeline with the atmosphere, the pressure of the air distribution pipe connecting part is increased, the pressure difference between the connecting part and the negative pressure station is also increased, and when a water plunger piston appears between the connecting part and the negative pressure station, the driving force of the water plunger piston can be increased, so that the water plunger piston is eliminated.
The automatic control gas distribution valve is a negative pressure control valve (or called negative pressure valve) 22 and is provided with a control gas path interface (control end interface), the control gas path interface is connected with an outlet of a two-position three-way valve 40 through a control connection gas path 31, a first inlet of the two-position three-way valve is connected with a first control gas source 50 through a negative pressure connecting pipeline 45, a second inlet is communicated with atmosphere or a second control gas source through an atmosphere communicating pipe 43 and can be directly opened in an atmosphere space, the first control gas source is a negative pressure source capable of controlling the opening of the negative pressure control valve, and the second control gas source is a positive pressure source capable of controlling the closing of the negative pressure valve. Therefore, the pressure of the control gas path interface of the negative pressure control valve can be controlled by controlling the working state of the two-position three-way valve, and the working state of the negative pressure control valve is further controlled.
Usually, the second control air source is a zero pressure source, a slight negative pressure source or a slight positive pressure source, and can be set according to the field condition and the control requirement of the negative pressure control valve.
A first pressure sensor 32 is provided for detecting the pressure in the pipe of the gas distribution pipe, the sensing signal output of the first pressure sensor is used for accessing the control device 30 capable of controlling the two-position three-way valve, and a corresponding cable 33 can be used for wired transmission. The control device may be a system control device (wireless remote monitoring module, or called monitoring module) of the product, and is provided with a wired and/or wireless communication module capable of communicating with the remote control center 38, so as to receive a control instruction or control parameter setting of the remote control center, and send status information and other information to the remote control center, thereby realizing remote control.
The control device controls the state of the two-position three-way valve according to the sensing signal of the first pressure sensor, and can perform wired transmission of the control signal through a corresponding cable 37 and output the control signal to be connected to the control end of the two-position three-way valve. When the transmitted sensing signal is that the pressure in the gas distribution pipe is reduced to or below a certain value, the outlet of the two-position three-way valve is controlled to be communicated with the first inlet, corresponding negative pressure is formed at the control gas path interface of the negative pressure control valve, the negative pressure control valve is opened, the negative pressure conveying pipeline is connected with the atmospheric pressure through the gas distribution pipe, after a set time, the state of the two-position three-way valve is automatically switched to be communicated with the outlet and the second inlet, corresponding positive pressure (zero pressure) is formed at the control gas path interface of the negative pressure control valve, the negative pressure control valve is closed, if the sensing signal of the first pressure sensor rapidly indicates that the pressure in the gas distribution pipe is lower than the certain value, the control device controls the negative pressure control valve to be opened again, when the repeated opening times reach the set times (for example, three times, but rather an alarm signal.
The first pressure sensor is a first pressure switch.
The switch state of the first pressure switch is controlled by the size of the accessed negative pressure, and a switch signal is output.
The negative pressure source is provided with a negative pressure cavity 51, the negative pressure cavity is provided with a first inlet, the first inlet is connected with a first negative pressure connecting pipe 52 used for connecting a negative pressure conveying pipeline, and the first negative pressure connecting pipe is provided with a first one-way valve 53 which only allows airflow to flow from the side of the negative pressure cavity to the side of the negative pressure conveying pipeline.
The negative pressure cavity is provided with a second inlet, the second inlet is connected with the air suction port of the negative pressure pump 60 through a second negative pressure connecting pipe 56, and the second negative pressure connecting pipe is provided with a second one-way valve 57 which only allows air flow to flow from the negative pressure cavity side to the negative pressure pump side.
A second pressure sensor 64 for detecting the pressure in the negative pressure cavity is provided, the sensing signal output of the second pressure sensor is used for accessing a negative pressure pump control device for controlling the negative pressure pump 60 through a corresponding cable (or pipeline) 65, and the negative pressure of the negative pressure cavity can be accessed to the second pressure sensor by communicating the negative pressure cavity with the corresponding interface of the second pressure sensor through a corresponding pipeline 63.
The negative pressure pump control device is used for controlling the work of the negative pressure pump, can be integrated on the negative pressure pump, can also be independently arranged or is adopted for controlling the negative pressure pump, under the condition that the negative pressure in the negative pressure conveying pipeline is normal, the required negative pressure can be formed in the negative pressure cavity, when the negative pressure value of the negative pressure conveying pipeline is reduced and lasts for a certain time, the negative pressure value in the negative pressure cavity can be reduced to the extent that the requirement of the negative pressure control valve can not be effectively controlled, the negative pressure pump control device controls the negative pressure pump to be started according to the sensing signal of the second pressure sensor, when the negative pressure value in the negative pressure cavity is reduced to a certain extent, the negative pressure pump is vacuumized (the gas in the negative pressure cavity is extracted) until the sensing signal of the second pressure sensor indicates that the negative pressure value in the negative pressure cavity is restored to the required extent. The mode of mainly maintaining the negative pressure in the negative pressure cavity by taking the negative pressure of the negative pressure conveying pipeline as a main part and taking the negative pressure pump as an auxiliary part maintains the negative pressure in the negative pressure cavity, so that the negative pressure in the negative pressure cavity is effectively maintained, and the capacity consumption can be reduced as much as possible.
The second pressure sensor is a second pressure switch, is controlled by the size of the accessed negative pressure and outputs a switch signal.
The second air distribution interface arranged on the air distribution pipe is used for connecting the first end of the manual air distribution valve 24, the second end of the manual air distribution valve is communicated with the atmosphere or an air distribution air source, and the manual air distribution valve can be manually opened to perform manual air distribution and the like when necessary.
The gas distribution pipe can adopt a manifold form, a main pipe interface of the gas distribution pipe is used for connecting a negative pressure conveying pipeline, and branch pipe interfaces respectively form a first gas distribution interface and a second gas distribution interface which are respectively used for connecting a self-control gas distribution valve and a manual gas distribution valve.
Each element/device can be installed in a box 90 to form a remotely controllable gas distribution box, a vertical face back plate 99 for installing the corresponding element and device is arranged in the box, the vertical face back plate is positioned at the rear part in the box, a door can be arranged in front of the box, a pipeline interface for connecting with an external pipeline (such as a negative pressure conveying pipeline) is arranged in the box, a through hole is arranged on the side wall of the box for connecting with the external pipeline, and the pipeline interface can also be directly arranged on the side wall of the box. To facilitate field assembly and maintenance.
The negative pressure pump is a miniature negative pressure pump and is powered by a solar power supply device.
The solar power supply device is generally provided with a solar panel 70 and a solar storage battery 74 according to the prior art, and the solar storage battery is used as a power supply of the miniature negative pressure pump.
The solar panels may be positioned on top of the cabinet by respective brackets 79.
Usually, set up this product at negative pressure conveying line's end, also can set up other pipeline region's that easily appear water plunger the negative pressure station side of keeping away from to insert the atmosphere on water plunger's the negative pressure station side pipeline of keeping away from when appearing water plunger in negative pressure conveying line, increase the pressure differential of water column stopper both sides, and then the liquid that impels water plunger flows to the negative pressure station direction, eliminates water plunger.
A manual switching valve 29 may be provided on the side of the distribution pipe near the negative pressure delivery pipe, or the connection of the distribution pipe to the negative pressure delivery pipe may be performed through the manual switching valve, so that the manual switching valve is closed when necessary (e.g., maintenance of the distribution box).
The terms inlet and outlet are used herein only to avoid confusion and do not represent the actual flow of the gas stream, which typically corresponds to the direction of pressure (or signal) transmission, and may be opposite to the direction of gas flow in the case of negative pressure.
The preferred and optional technical means disclosed in the present invention can be combined arbitrarily to form a plurality of different technical solutions, except for the specific description and the further limitation that one preferred or optional technical means is another technical means.
Claims (9)
1. The negative pressure pipe network monitoring station is characterized by comprising a gas distribution pipe used for being connected into a negative pressure conveying pipeline, wherein a first gas distribution interface and a second gas distribution interface are arranged on the gas distribution pipe, the first gas distribution interface is connected with a first end of a self-control gas distribution valve, the second gas distribution interface is connected with a first end of a manual gas distribution valve, a second end of the self-control gas distribution valve is communicated with atmosphere or a gas distribution gas source, a second end of the manual gas distribution valve is communicated with atmosphere or the gas distribution gas source, the self-control gas distribution valve is a negative pressure control valve and is provided with a control gas circuit interface, the control gas circuit interface is connected with an outlet of a two-position three-way valve, a first pressure sensor used for detecting the pressure in the gas distribution pipe is arranged, and the sensing signal output of the first pressure sensor is used for being.
2. The negative pressure pipeline network monitoring station as claimed in claim 1, wherein a first inlet of the two-position three-way valve is connected to a first control air source, a second inlet is connected to the atmosphere or a second control air source, the first control air source is a negative pressure source capable of controlling the opening of the negative pressure control valve, and the second control air source is a positive pressure source capable of controlling the closing of the negative pressure control valve.
3. The negative pressure pipeline network monitoring station of claim 2, wherein the first pressure sensor is a first pressure switch.
4. The negative pressure pipeline network monitoring station according to claim 2, wherein the negative pressure source is provided with a negative pressure cavity, the negative pressure cavity is provided with a first inlet, the first inlet is connected with a first negative pressure connecting pipe for connecting the negative pressure conveying pipeline, and the first negative pressure connecting pipe is provided with a first check valve which only allows air flow to flow from the negative pressure cavity side to the negative pressure conveying pipeline side.
5. The negative pressure pipeline network monitoring station according to claim 4, wherein the negative pressure cavity is provided with a second inlet, the second inlet is connected with the suction port of the negative pressure pump through a second negative pressure connecting pipe, and the second negative pressure connecting pipe is provided with a second one-way valve which only allows the air flow to flow from the negative pressure cavity side to the negative pressure pump side.
6. The negative pressure pipeline network monitoring station according to claim 5, wherein a second pressure sensor is provided for detecting the pressure in the negative pressure cavity, and the sensing signal output of the second pressure sensor is used for connecting a negative pressure pump control device for controlling the negative pressure pump.
7. The negative pressure pipeline network monitoring station of claim 6, wherein the second pressure sensor is a second pressure switch.
8. The negative pressure pipeline network monitoring station of claim 7, wherein the negative pressure pump is a micro negative pressure pump and is powered by a solar power supply.
9. The negative pressure pipeline network monitoring station according to any one of claims 1 to 8, wherein the distribution pipe is in the form of a manifold, a main pipe connector of the distribution pipe is used for connecting a negative pressure conveying pipeline, and branch pipe connectors respectively form a first distribution connector and a second distribution connector which are respectively used for connecting a self-control distribution valve and a manual distribution valve.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020907674.0U CN212565327U (en) | 2020-05-26 | 2020-05-26 | Negative pressure pipe network monitoring station |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020907674.0U CN212565327U (en) | 2020-05-26 | 2020-05-26 | Negative pressure pipe network monitoring station |
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| CN212565327U true CN212565327U (en) | 2021-02-19 |
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| CN202020907674.0U Active CN212565327U (en) | 2020-05-26 | 2020-05-26 | Negative pressure pipe network monitoring station |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114472450A (en) * | 2022-02-07 | 2022-05-13 | 青岛松上环境工程有限公司 | Automatic kitchen waste collecting system |
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2020
- 2020-05-26 CN CN202020907674.0U patent/CN212565327U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114472450A (en) * | 2022-02-07 | 2022-05-13 | 青岛松上环境工程有限公司 | Automatic kitchen waste collecting system |
| CN114472450B (en) * | 2022-02-07 | 2023-10-24 | 青岛松上环境工程有限公司 | Kitchen garbage automatic collection system |
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