CN216345461U - Pipeline early warning device that admits air - Google Patents
Pipeline early warning device that admits air Download PDFInfo
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- CN216345461U CN216345461U CN202123039928.5U CN202123039928U CN216345461U CN 216345461 U CN216345461 U CN 216345461U CN 202123039928 U CN202123039928 U CN 202123039928U CN 216345461 U CN216345461 U CN 216345461U
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Abstract
The utility model provides a pipeline early warning device that admits air, including the pipeline top of locating the level trend and with the inside gas of intercommunication of pipeline hold the chamber, locate gas holds and is used for detecting on the chamber gas holds the intracavity and has or not gaseous sensing device and by the alarm device of sensing device control. The utility model can collect the gas mixed in the pipeline and give an alarm, thereby avoiding the liquid pump from stopping working caused by the gas entering the liquid pump.
Description
Technical Field
The utility model relates to the technical field of pipeline air inlet early warning, in particular to a pipeline air inlet early warning device.
Background
When the liquid is transported through the pipe, the liquid pump may stop operating if air is introduced into the pipe. Some special dangerous goods are easy to cause potential safety hazards when air is introduced in the conveying process. For example, in the oil distribution operation of an oil tank, because the density of oil is relatively low, impurities, water and the like can sink, a floating oil suction device is generally used for obtaining high-quality oil at the upper layer, but the floating oil suction device can be failed to normally descend along with the liquid level, air is sucked, the air enters an apron oil pump through an oil distribution pipe, the oil pump cannot normally operate, the airplane oil distribution operation is influenced, and flights are delayed. And after air is introduced, air in the oil pipe is emptied manually, which is time-consuming and labor-consuming. Therefore, a floating oil suction arm air inlet early warning and handling system needs to be designed to judge and handle the air inlet oil tank, and influence possibly caused by air inlet is reduced to the minimum.
Chinese patent publication No. CN209704733U discloses an automatic exhaust device for an oil passage of an automobile, which includes an oil tank and an oil delivery pipe assembly connected to the oil tank. The oil delivery pipeline assembly comprises a fuel pump, a first oil delivery pipeline, a gas storage pipe and a second oil delivery pipeline which are sequentially connected, the gas storage pipe is provided with a protruding portion at least part of which is higher than the first oil delivery pipeline, the top end of the protruding portion is provided with an electromagnetic valve, and when gas in the protruding portion is accumulated, the electromagnetic valve is opened to release gas in an oil way. The application provides a car oil circuit exhaust apparatus can collect the gas in the oil circuit in the gas storage pipe, after certain quantity when gaseous gathering, discharge valve is automatic to be opened, exhausts, prevents to cause the engine to flame out or start the difficulty because of the oil circuit takes place the air lock, has removed the wasting of resources and the environmental pollution that driver's manual exhaust caused from, has reached green, safe convenient, labour saving and time saving's purpose.
However, the above scheme has a complex structure and complex loop arrangement, and can only be used in a small scene such as an automobile, meanwhile, the exhaust loop is communicated with the oil tank, when exhaust is needed, gas needs to be exhausted back to the oil tank until fuel oil also enters the oil tank, waiting time is long, and for a large pipe network laid in an airport, a factory and the like, a plurality of loops need to be additionally laid by the design, so that construction difficulty and cost are greatly increased.
SUMMERY OF THE UTILITY MODEL
The utility model aims to overcome the defects of complex structure, high construction difficulty and high cost in the prior art and provides a pipeline air inlet early warning device. The utility model can collect the gas mixed in the pipeline and give an alarm, thereby avoiding the liquid pump from stopping working caused by the gas entering the liquid pump.
The purpose of the utility model can be achieved by adopting the following technical scheme:
the utility model provides a pipeline early warning device that admits air, including the pipeline top of locating the level trend and with the inside gas of intercommunication of pipeline hold the chamber, locate gas holds and is used for detecting on the chamber gas holds the intracavity and has or not gaseous sensing device and by the alarm device of sensing device control.
The gas containing cavity can be formed by forming a hole at the top end of a transversely laid infusion pipeline and then connecting the gas containing cavity with the pipeline in a sealing manner. Or a three-way or a shell similar to the three-way is used, two ports at the bottom of the three-way are used for inputting and outputting the liquid to be conveyed, the rest port faces upwards, the top of the three-way is plugged to be used as a gas containing cavity, for example, the T-shaped three-way can form an inverted T during installation, the shell with the three-way structure can be directly installed in a pipeline network in a novel mode through a conventional connecting mode between pipelines after all parts of a sensing device and the like are integrated, and the three-way type liquid conveying device is very convenient and fast. When the transported liquid flows through the bottom of the gas-containing chamber, if gas is mixed in the liquid, the gas will accumulate in the gas-containing chamber because the gas has a much lower density than the liquid. When the sensing device arranged on the gas containing cavity detects that gas exists in the gas containing cavity, the sensing device can control the alarm device to give an alarm. Alarm device both can locate on the gaseous chamber that holds or pipeline admit air near early warning device's audible-visual alarm device also can be connected sensing device and controlling means such as PLC, singlechip, PC etc. through controller control alarm device, alarm device also can set up in the place that has staff's operation or on duty, reminds staff's pipeline to admit air, in time switches into reserve infusion pipeline to the operation of exhausting, prevent that gaseous entering liquid pump leads to unable normal operating.
Further, the sensing device is a pressure sensing device or a level switch. The pressure sensing device and the level switch can judge the amount of gas accumulated in the gas containing cavity to a certain extent, and can set a certain threshold value to judge whether to alarm or not, thereby avoiding error misinformation.
Furthermore, the top of the gas containing cavity is provided with a first branch pipe communicated with the inside of the gas containing cavity, and the sensing device is arranged on the branch pipe. The inner diameter of the first branch pipe is far smaller than that of the gas containing cavity, so that the concentration of gas in the gas containing cavity can be observed in an amplified mode, the identification of the sensing device is more accurate, and the gas containing cavity can be used for discharging gas.
Furthermore, the top end of the gas accommodating cavity is a spherical top or a conical top, and the first branch pipe is arranged at the topmost end of the spherical top or the conical top. The inclined top of the gas accommodating cavity can guide gas to gather towards the highest position, so that the gas can gather towards the first branch pipe conveniently, and the gas in the gas collecting cavity is discharged completely. The first branch pipe can be arranged at the topmost end of the spherical top or the conical top, or can not be arranged at the topmost end, and the topmost end is a small gas containing space.
Further, the first branch pipe is arranged at the topmost end of the spherical top or the conical top.
Furthermore, the top of the gas containing cavity is provided with a first branch pipe and a second branch pipe which are communicated with the inside of the gas containing cavity, and the sensing device comprises a pressure sensing device arranged on the first branch pipe and a level switch arranged on the second branch pipe. When the gas in the gas containing cavity reaches a certain amount, the level switch and the pressure sensing device are triggered, and the alarm device starts to alarm after receiving the signal.
Further, the pressure sensing device is a pressure transmitter, and the level switch is a tuning fork level switch. The tuning fork level switch is more sensitive to changes before gas and liquid.
Furthermore, a pressure gauge is arranged on the first branch pipe. A threshold value can be set for each of the pressure gauge, the pressure transmitter and the tuning fork level switch, when the three reach the set threshold value, the alarm device can be triggered, and a control device can be arranged between the sensing device and the alarm device and used for identifying signals of the sensing device and judging whether the alarm device needs to be started.
Further, the gas-discharging device is arranged on the first branch pipe and used for discharging gas accumulated in the gas containing cavity.
Furthermore, exhaust apparatus is including locating the ooff valve on the first branch pipe, first branch pipe is the U-shaped, first branch pipe one end with the gas holds the chamber and links to each other, and the other end is used for giving vent to anger. When exhausting, can put the blast pipe exit with the oil drum, open the switch valve and discharge gas, it is discharged from the blast pipe and close the switch valve immediately to see oil.
Furthermore, the switch valve is an electric control valve and is connected with the control device. The sensing device recognizes that the gas in the gas collection cavity is discharged, transmits a signal to the control device, and immediately controls the switch valve to be closed after the control device receives the signal.
Further, including the right angle tee bend that left right side route and pipeline intercommunication third route set up, the gaseous chamber that holds is the route at right angle tee bend top, be equipped with on the right angle tee bend top and be used for sealed first blind plate, be equipped with on the first blind plate with the inside first branch pipe that communicates of right angle tee bend, sensing device locates on the first branch pipe, the exit of first branch pipe is equipped with the second blind plate. When the utility model is used in places such as oil filling pipelines of airports and the like, in order to ensure safety, the sealing performance of the switch valve is difficult to ensure, a second blind plate is arranged at the outlet of the first branch pipe, the second blind plate can be used for replacing the switch valve, and the opening and closing of the switch valve are realized by dismounting the second blind plate; a second blind plate can be additionally arranged on the basis of the switch valve, so that the sealing performance and the safety performance are further ensured.
Compared with the prior art, the utility model has the beneficial effects that:
(1) the liquid pump can collect and alarm the pipeline for conveying liquid, so that the liquid pump is prevented from stopping working after air is fed, and much time is consumed for re-exhausting and starting;
(2) the gas gathered in the gas collecting cavity can be directly discharged, so that the time is saved, and all the liquid in the gas inlet section in the pipeline is not required to be discharged to achieve the purpose of gas discharge.
(3) Simple structure and convenient use.
Drawings
Fig. 1 is a schematic structural diagram of the pipeline air intake early warning device of the utility model.
The graphic symbols are illustrated as follows:
the device comprises a gas containing cavity 1, a first branch pipe 2, a second branch pipe 3, a pressure transmitter 4, a tuning fork level switch 5, a pressure gauge 6 and a switch valve 7.
Detailed Description
The present invention will be further described with reference to the following embodiments. Wherein the showings are for the purpose of illustration only and are shown by way of illustration only and not in actual form, and are not to be construed as limiting the present patent; to better illustrate the embodiments of the present invention, some parts of the drawings may be omitted, enlarged or reduced, and do not represent the size of an actual product; it will be understood by those skilled in the art that certain well-known structures in the drawings and descriptions thereof may be omitted.
The same or similar reference numerals in the drawings of the embodiments of the present invention correspond to the same or similar components; in the description of the present invention, it should be understood that if there is an orientation or positional relationship indicated by the terms "upper", "lower", "left", "right", etc. based on the orientation or positional relationship shown in the drawings, it is only for convenience of describing the present invention and simplifying the description, but it is not intended to indicate or imply that the referred device or element must have a specific orientation, be constructed in a specific orientation, and be operated, and therefore, the terms describing the positional relationship in the drawings are only used for illustrative purposes and are not to be construed as limiting the present patent, and the specific meaning of the terms may be understood by those skilled in the art according to specific circumstances.
Example 1
As shown in fig. 1, a pipeline gas inlet early warning device comprises a gas accommodating cavity 1 which is arranged at the top of a pipeline in a horizontal direction and is communicated with the inside of the pipeline, a sensing device which is arranged on the gas accommodating cavity 1 and used for detecting whether gas exists in the gas accommodating cavity 1, and an alarm device controlled by the sensing device.
The gas containing cavity 1 is formed by forming a hole at the top end of a transversely laid infusion pipeline and then hermetically connecting the gas containing cavity 1 with the pipeline. When the liquid to be transported flows through the bottom of the gas-containing chamber 1, if gas is mixed in the liquid, the gas is accumulated in the gas-containing chamber 1 because the gas has a much lower density than the liquid. When the sensing device arranged on the gas containing cavity 1 detects that gas exists in the gas containing cavity 1, the sensing device can control the alarm device to give an alarm. Alarm device both can locate on the gas holds chamber 1 or pipeline admit air near early warning device's audible and visual alarm device, also can be connected sensing device and controlling means such as PLC, singlechip, PC etc. through controller control alarm device, alarm device also can set up the place that has staff's operation or on duty, reminds staff's pipeline to admit air, in time switches into reserve infusion pipeline to the operation of exhausting, prevents that gas from getting into the liquid pump and leading to unable normal operating.
As shown in fig. 1, a first branch pipe 2 and a second branch pipe 3 which are communicated with the inside of the gas containing cavity 1 are arranged at the top of the gas containing cavity 1, and the sensing device comprises a pressure sensing device arranged on the first branch pipe 2 and a level switch arranged on the second branch pipe 3. When the gas in the gas containing cavity 1 reaches a certain amount, the level switch and the pressure sensing device are triggered, and the alarm device starts to alarm after receiving the signal.
As shown in fig. 1, the pressure sensing device is a pressure transmitter 4, and the level switch is a tuning fork level switch 5.
As shown in fig. 1, a pressure gauge 6 is further disposed on the first branch pipe 2. A threshold value can be set for each of the pressure gauge 6, the pressure transmitter 4 and the tuning fork level switch 5, when the three reach the set threshold value, the alarm device can be triggered, and a control device can be arranged between the sensing device and the alarm device and used for identifying signals of the sensing device and judging whether the alarm device needs to be started.
As shown in fig. 1, the gas-discharging device is arranged on the first branch pipe 2 and is used for discharging the gas accumulated in the gas-containing chamber 1.
As shown in fig. 1, the exhaust device includes a switch valve 7 disposed on the first branch pipe 2, the first branch pipe 2 is U-shaped, one end of the first branch pipe 2 is connected to the gas accommodating chamber 1, and the other end is used for discharging gas. During the exhaust, can put the blast pipe exit with the oil drum, open switch valve 7 with gas outgoing, close switch valve 7 immediately from the blast pipe discharge until seeing that there is oil.
Example 2
This embodiment is similar to embodiment 1 except that in this embodiment, the top of the gas-containing chamber 1 is provided with only a first branch pipe 2 communicating with the inside of the gas-containing chamber 1, and no second branch pipe 3, and the sensing means is provided on the branch pipe. The inner diameter of the first branch pipe 2 is far smaller than that of the gas containing cavity 1, so that the gas collecting amount in the gas containing cavity 1 can be observed in an amplification mode, the identification of the sensing device is more accurate, and the gas collecting device can also be used for discharging gas. The sensing device is a pressure sensing device or a level switch. The pressure sensing device and the level switch can judge the amount of gas gathered in the gas containing cavity 1 to a certain extent, and can set a certain threshold value to judge whether to alarm or not, thereby avoiding error misinformation.
The top end of the gas containing cavity 1 is a spherical top or a conical top, and the first branch pipe 2 is arranged at the topmost end of the spherical top or the conical top. The oblique top in gaseous holding chamber 1 can guide gaseous toward the highest point gathering, and the gaseous gathering toward first branch pipe 2 of being convenient for to the gaseous whole discharges in the gas collection intracavity. The first branch pipe 2 may be provided at the topmost end of the dome or the cone top, or may not be provided at the topmost end, and the topmost end has a small gas accommodation space. The first branch pipe 2 is arranged at the topmost end of the spherical top or the conical top.
Example 3
The present embodiment is similar to embodiment 1, except that in the present embodiment, the switch valve 7 is an electrically controlled valve, and the switch valve 7 is connected to the control device. The sensing device recognizes that the gas in the gas collection cavity is exhausted, transmits a signal to the control device, and immediately controls the switch valve 7 to close after receiving the signal.
In this embodiment, still including the right angle tee bend that left right side route and pipeline intercommunication third route set up, gas holds the route that chamber 1 is right angle tee bend top, be equipped with on the right angle tee bend top and be used for sealed first blind plate, be equipped with on the first blind plate with the inside first branch pipe 2 that communicates of right angle tee bend, sensing device locates on the first branch pipe 2, the exit of first branch pipe 2 is equipped with the second blind plate. When the utility model is used in places such as oil filling pipelines in airports and the like, in order to ensure safety, the sealing performance of the switch valve 7 is difficult to ensure, a second blind plate is arranged at the outlet of the first branch pipe 2, the second blind plate can be used for replacing the switch valve 7, and the opening and closing of the switch valve 7 are realized by dismounting the second blind plate; on the basis of the switch valve 7, a second blind plate can be additionally arranged, so that the sealing performance and the safety performance are further ensured. The right-angle tee is convenient to install in the pipeline.
It should be understood that the above-described embodiments of the present invention are merely examples for clearly illustrating the present invention, and are not intended to limit the embodiments of the present invention. Other variations and modifications will be apparent to persons skilled in the art in light of the above description. And are neither required nor exhaustive of all embodiments. Any modification, equivalent replacement, and improvement made within the spirit and principle of the present invention should be included in the protection scope of the claims of the present invention.
Claims (10)
1. The utility model provides a pipeline early warning device that admits air which characterized in that, including the pipeline top of locating the level trend and with the inside gas of intercommunication hold chamber (1), locate gas holds and is used for detecting on the chamber (1) gas holds the sensing device who has or not gaseously in the chamber (1) and by the alarm device of sensing device control.
2. The pipeline intake air early warning device according to claim 1, wherein the sensing device is a pressure sensing device or a level switch.
3. The pipeline gas inlet early warning device as claimed in claim 2, wherein a first branch pipe (2) communicated with the inside of the gas accommodating cavity (1) is arranged at the top of the gas accommodating cavity (1), and the sensing device is arranged on the branch pipe.
4. The pipeline gas inlet early warning device according to claim 3, wherein the top end of the gas accommodating cavity (1) is a spherical top or a conical top, and the first branch pipe (2) is arranged at the topmost end of the spherical top or the conical top.
5. The pipeline gas inlet early warning device according to claim 1, wherein a first branch pipe (2) and a second branch pipe (3) which are communicated with the inside of the gas containing cavity (1) are arranged at the top of the gas containing cavity (1), and the sensing device comprises a pressure sensing device arranged on the first branch pipe (2) and a level switch arranged on the second branch pipe (3).
6. The pipeline intake air early warning device according to claim 5, wherein the pressure sensing device is a pressure transmitter (4), and the level switch is a tuning fork level switch (5).
7. The pipeline air inlet early warning device as claimed in claim 6, wherein a pressure gauge (6) is further arranged on the first branch pipe (2).
8. The pipeline intake forewarning device of claim 3 or 5, further comprising an exhaust device arranged on the first branch pipe (2) and used for exhausting gas accumulated in the gas accommodating cavity (1).
9. The pipeline air inlet early warning device according to claim 8, wherein the exhaust device comprises a switch valve (7) arranged on the first branch pipe (2), the first branch pipe (2) is U-shaped, one end of the first branch pipe (2) is connected with the gas accommodating cavity (1), and the other end of the first branch pipe is used for air outlet.
10. The pipeline air inlet early warning device according to claim 1, comprising a right-angle tee joint with a left passage and a right passage communicated with a pipeline, wherein the third passage is arranged upwards, the gas accommodating cavity (1) is a passage at the top of the right-angle tee joint, a first blind plate for sealing is arranged at the top of the right-angle tee joint, a first branch pipe (2) communicated with the inside of the right-angle tee joint is arranged on the first blind plate, the sensing device is arranged on the first branch pipe (2), and a second blind plate is arranged at an outlet of the first branch pipe (2).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202123039928.5U CN216345461U (en) | 2021-12-02 | 2021-12-02 | Pipeline early warning device that admits air |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202123039928.5U CN216345461U (en) | 2021-12-02 | 2021-12-02 | Pipeline early warning device that admits air |
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| Publication Number | Publication Date |
|---|---|
| CN216345461U true CN216345461U (en) | 2022-04-19 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202123039928.5U Active CN216345461U (en) | 2021-12-02 | 2021-12-02 | Pipeline early warning device that admits air |
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| Country | Link |
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| CN (1) | CN216345461U (en) |
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2021
- 2021-12-02 CN CN202123039928.5U patent/CN216345461U/en active Active
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