CN211201933U - Leakage monitoring device - Google Patents
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- CN211201933U CN211201933U CN201921572979.4U CN201921572979U CN211201933U CN 211201933 U CN211201933 U CN 211201933U CN 201921572979 U CN201921572979 U CN 201921572979U CN 211201933 U CN211201933 U CN 211201933U
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Abstract
The utility model provides a leakage monitoring device, which comprises a collecting box, a detecting cylinder, a gas detecting device, a controller and an alarm device, wherein a sucker rod passes through the collecting box, the bottom end of the collecting box is connected with a packing box, the detecting cylinder is communicated with the collecting box, the gas detecting device is arranged in the detecting cylinder, and the controller is electrically connected with the gas detecting device and the alarm device; when the packing box is in friction with the sucker rod to cause the sealing failure of the packing box, natural gas leaks into the collecting box and the detecting cylinder, the gas detecting device collects concentration signals of combustible gas in the detecting cylinder and sends the concentration signals to the controller, and if the concentration signals reach preset concentration, the controller controls the alarm device to give an alarm and reminds technicians of the leakage of the combustible gas; compared with the regular inspection of technicians, the technicians can find that the sealing failure of the packing box is revealed in time according to the alarm, and take remedial measures to treat in time, so that explosion, environmental poisoning and environmental pollution caused by the leakage of a large amount of natural gas are avoided.
Description
Technical Field
The utility model relates to an equipment technique is prevented leaking in oil gas exploitation especially relates to a reveal monitoring device.
Background
At present, an oil field mainly depends on an oil pumping unit to extract oil, a sucker rod is arranged in the oil pipe in a penetrating way, and the sucker rod is connected with an oil pump in the oil pipe; the pumping unit drives the pumping rod to reciprocate up and down, the pumping rod drives the pumping pump to work, so that the petroleum in the reservoir is driven to flow upwards along the oil pipe, and the petroleum flows out through a production tree at the top end of the oil pipe, so that the petroleum is exploited; the top end of the Christmas tree is provided with an opening, and the sucker rod extends into the Christmas tree and the oil pipe from the opening; a packing box is arranged between the opening and the sucker rod and can seal a gap between the sucker rod and the opening; however, due to the up-and-down reciprocating motion of the sucker rod, friction is easily generated between the sucker rod and the packing box, so that the sealing failure of the packing box is caused, natural gas and petroleum are leaked from the sealing failure of the packing box, and explosion, environmental poisoning and environmental pollution are caused.
Among the prior art, be accompanied with the natural gas output when oil recovery, to avoid the sealed inefficacy of packing box to lead to natural gas and oil to reveal on a large scale, on-the-spot operating personnel need regularly patrol and examine the well head, look over whether the packing box is sealed to be inefficacy, and is concrete, can detect well head department natural gas concentration through handheld measuring apparatu, if the natural gas concentration that detects is greater than preset concentration, then the natural gas is revealed, and operating personnel changes or maintains the packing box.
However, the operator can not find the leakage of the packing box due to the sealing failure in time by detecting the packing box in a regular manual inspection mode, so that explosion, environmental poisoning and environmental pollution are easily caused.
SUMMERY OF THE UTILITY MODEL
An embodiment of the utility model provides a reveal monitoring device to can not in time discover among the solution prior art that the sealed inefficacy of packing box takes place to reveal, causes explosion, environmental poisoning and environmental pollution's technical problem easily.
An embodiment of the utility model provides a reveal monitoring device, include: the gas detection device comprises a collection box, a detection cylinder, a gas detection device, a controller and an alarm device; the top end of the collecting box is provided with a first through hole, the bottom end of the collecting box is provided with a second through hole, and the first through hole and the second through hole are used for a sucker rod to pass through; the bottom end of the collecting box is used for being connected with the packing box;
the detection barrel is communicated with the collection box, the gas detection device is arranged in the detection barrel, the controller is electrically connected with the gas detection device and the alarm device, and the controller is used for controlling the alarm device to give an alarm when the gas detection device detects that the concentration of combustible gas reaches the preset concentration.
The leakage monitoring device comprises a liquid detection device, wherein the liquid detection device is arranged in the detection cylinder and electrically connected with the controller, and the controller is further used for controlling the alarm device to give an alarm when the liquid detection device detects that the liquid level in the detection cylinder reaches a preset height.
The leakage monitoring device as described above, wherein the liquid detection device comprises: the light emitter and the light receiver are oppositely arranged on the inner wall of the detection barrel, the distance between the light emitter and the light receiver and the barrel bottom of the detection barrel is the same as the preset height, and the light emitter and the light receiver are both electrically connected with the control circuit; the float is disposed within the detection barrel.
The leak monitoring device as described above, wherein the liquid detection device is located between the gas detection device and the bottom of the detection cylinder.
The leakage monitoring device as described above, wherein an injection port is provided on a side wall between the gas detection device and the top of the detection cylinder, and the injection port is communicated with the collection box.
The leakage monitoring device comprises a valve, wherein a discharge hole is formed in the bottom of the detection cylinder, and the valve is communicated with the discharge hole.
The leakage monitoring device as described above, wherein the valve is a solenoid valve, and the solenoid valve is electrically connected to the control.
The leakage monitoring device as described above, wherein the side wall of the first through hole is hermetically connected to the sucker rod, and a gap is provided between the side wall of the second through hole and the sucker rod.
The leakage monitoring device is characterized in that a sealing ring is arranged in the first through hole, and the sucker rod is arranged in the sealing ring in a penetrating mode.
The leak monitoring apparatus as described above, wherein the gas detection apparatus comprises a methane sensor.
The embodiment of the utility model provides a leakage monitoring device, including collection box, detection cylinder, gaseous detection device, controller and alarm device, the sucker rod passes the collection box, and the bottom of collection box is connected with the packing box, and the detection cylinder communicates with the collection box, is provided with gaseous detection device in the detection cylinder, and the controller is connected with gaseous detection device and alarm device electricity; when the packing box is in sealing failure due to friction with the sucker rod, natural gas leaks into the collection box and the detection cylinder, the gas detection device collects concentration signals of combustible gas in the detection cylinder and sends the concentration signals to the controller, the controller compares the received concentration signals with preset concentration, and if the concentration of the combustible gas in the detection cylinder reaches the preset concentration, the controller controls the alarm device to give an alarm and reminds technicians of combustible gas leakage; compare with the technical staff periodic inspection, the technical staff can in time discover that the packing box sealing failure takes place to reveal according to the alarm to in time take remedial measures to handle, avoid the beam-pumping unit still to continuously exploit under the packing box sealing failure situation, lead to a large amount of natural gas to reveal from the packing box sealing failure and cause explosion, environmental poisoning and environmental pollution.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings needed to be used in the description of the embodiments or the prior art will be briefly described below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.
Fig. 1 is a schematic structural diagram of a leakage monitoring device according to an embodiment of the present invention;
fig. 2 is a top view of the leakage monitoring device provided in the embodiment of the present invention.
Description of reference numerals:
10: a collection box;
101: a first through hole;
102: a second through hole;
20: a detection cylinder;
201: an injection port;
30: a gas detection device;
40: a liquid detection device;
401: a float;
50: a controller;
501: a communication interface.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, but not all, embodiments of the present invention. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention. The embodiments described below and the features of the embodiments can be combined with each other without conflict.
Referring to fig. 1 and fig. 2, fig. 1 is a schematic structural diagram of a leakage monitoring device according to an embodiment of the present invention; fig. 2 is a top view of the leakage monitoring device provided in the embodiment of the present invention. As shown in fig. 1 and 2, the present embodiment provides a leakage monitoring apparatus including: a collecting box 10, a detecting cylinder 20, a gas detecting device 30, a controller 50 and an alarm device (not shown in the figure); the top end of the collecting box 10 is provided with a first through hole 101, the bottom end of the collecting box 10 is provided with a second through hole 102, and the first through hole 101 and the second through hole 102 are used for a sucker rod to pass through; the bottom end of the collection box 10 is used for being connected with a packing box; the detection cylinder 20 is communicated with the collection box 10, the gas detection device 30 is arranged in the detection cylinder 20, the controller 50 is electrically connected with the gas detection device 30 and the alarm device, and the controller 50 is used for controlling the alarm device to give an alarm when the gas detection device 30 detects that the concentration of the combustible gas reaches the preset concentration.
Specifically, in oil exploitation, an oil pipe is put into an oil well casing, an oil well pump is arranged in the oil pipe, and a sucker rod penetrates through the oil pipe and is connected with the oil well pump; the top of oil pipe is provided with the production tree, and the sucker rod stretches out by the production tree top to the top of sucker rod is connected with the beam-pumping unit. The oil pumping process comprises the following steps: the pumping unit on the ground drives the pumping rod to reciprocate up and down, and the oil-gas mixture in the storage layer enters the oil pipe under the pumping action of the oil well pump and flows upwards along the oil pipe, and then flows out through the Christmas tree to realize the exploitation of petroleum. Wherein, in order to keep the sealed between sucker rod and the production tree top, be provided with the packing box at the production tree top, the packing box holding has the packing, in the sucker rod passed the back from packing box and packing and stretches into the production tree, the packing box top is provided with the packing box and presses the cap, presses the cap to the packing box and screws up for the packing box presses the cap to fix the packing extrusion in the packing box, closely cooperates between packing and packing box and the sucker rod, thereby realizes the sealed between sucker rod and the production tree.
In this embodiment, the collecting box 10 includes a top plate and a bottom plate disposed parallel to the horizontal plane, and an intermediate plate disposed between the top plate and the bottom plate, the top plate and the bottom plate are disposed at intervals along a direction perpendicular to the horizontal plane, the intermediate plate is perpendicular to the horizontal plane, and the top plate, the bottom plate and the intermediate plate enclose to form a housing. Wherein, the middle plate body is provided with an opening communicated with the inside of the shell. The first through hole 101 is arranged on the top plate, the second through hole 102 is arranged on the bottom plate, and the center lines of the first through hole 101 and the second through hole 102 are perpendicular to the horizontal plane and are arranged in a collinear manner. The sucker rod sequentially passes through the second through hole 102 and the first through hole 101 along the direction from the underground to the wellhead, so that the collecting box 10 is sleeved on the sucker rod; specifically, the bottom plate of the collection box 10 and the top end of the packing box, which is away from the ground, form a sealing connection.
The detection cylinder 20 is cylindrical, an injection port 201 communicated with the interior of the detection cylinder 20 is formed in the side wall of the detection cylinder 20, and meanwhile, the injection port 201 is communicated with the collection box 10, so that leaked natural gas can flow into the collection box 10 from the sealing failure position of the packing box when the packing box fails in sealing, so that the leaked natural gas is collected by the detection cylinder 20, and an alarm device in the detection cylinder 20 gives an alarm to prompt technicians to generate gas leakage in time; the natural gas is prevented from leaking out of the well mouth, so that explosion, environmental poisoning and environmental pollution are avoided. The side wall of the detection cylinder 20 is connected to the middle plate of the collection box 10, the inlet 201 of the detection cylinder 20 is communicated with the opening of the collection box 10, and a flow channel is formed inside the collection box 10, the opening of the collection box 10, the inlet 201 of the detection cylinder 20 and the detection cylinder 20. Alternatively, the collecting box 10 may have a regular shape such as a cylindrical shape or a prismatic shape, or may have other irregular shapes; the detection cylinder 20 may have a regular shape such as a cylindrical shape or a prismatic shape, or may have other irregular shapes as long as the inlet 201 of the detection cylinder 20 communicates with the opening of the collection box 10 and no gap exists at the connection between the collection box 10 and the detection cylinder 20 when the collection box 10 is connected to the detection cylinder 20. In addition, the collecting box 10 and the detecting cylinder 20 may be connected by welding or may be integrally formed by casting. Preferably, the injection port 201 is arranged at the top of the detection cylinder 20, and the collection box 10 is connected with the top of the detection cylinder 20, so that the oil-gas mixture flowing into the collection box 10 can enter the detection cylinder 20 more easily.
The gas detection device 30 is disposed on the inner wall of the detection cylinder 20 and is used for collecting a concentration signal of the combustible gas in the detection cylinder 20, and the gas detection device 30 sends the collected concentration signal to the controller 50. The gas detection device 30 may be connected to the detection cylinder 20 by a screw connection, or may be attached to the inner wall of the detection cylinder 20 by an electromagnet. Alternatively, the gas detection device 30 may be a semiconductor gas sensor; of course, the gas detection device 30 may also be a methane sensor, which has an auto-zero function, higher calibration reliability, more stable performance, and simpler and more convenient use compared to a semiconductor gas sensor.
The Controller 50 is disposed outside the detection cylinder 20 and connected to an outer wall of the detection cylinder 20, an input end of the Controller 50 is electrically connected to an output end of the gas detection device 30, an output end of the Controller 50 is electrically connected to an input end of the alarm device, the Controller 50 is configured to receive a concentration signal sent by the gas detection device 30, compare the received concentration signal with a preset concentration, when the concentration signal reaches the preset concentration, it is described that the combustible gas in the detection cylinder 20 is in an overrun state, the Controller 50 controls the alarm device to send out an alarm, a technician finds that the packing box sealing failure is leaked according to the alarm in time, and takes a remedial measure to process the leakage in time, wherein the preset concentration refers to a concentration threshold value of the allowable leaked natural gas on the premise that the leaked natural gas concentration does not cause explosion, the preset concentration can be freely set by the technician according to actual needs and experience, in addition, the Controller 50 may be a single chip microcomputer or a Programmable Controller (hereinafter, referred to as P L C), which is not limited to the preset concentration of 0.6, wherein the Controller controls the combustible gas to send out the combustible gas when the concentration of the detection cylinder is 0.001 ppm, and the combustible gas is controlled by the alarm device.
The alarm device can be different according to different alarm types, optionally comprises a buzzer or a loudspeaker when sound information is adopted for prompting, comprises a light Emitting Diode (L light Emitting Diode, L ED flashing light for short) or a bulb when light information is adopted for prompting, and comprises a monitoring display screen when text information is adopted for prompting.
The leakage monitoring device further comprises a remote terminal control device, and specifically, the remote terminal control device can be an oil field production internet of things; the controller 50 is provided with a communication interface 501, and the controller 50 is electrically connected to an input terminal of the remote terminal control device by using the communication interface 501.
The working process of the leakage monitoring device provided by the embodiment is as follows: sleeving the collection box 10 on the sucker rod, wherein the bottom plate of the collection box 10 is hermetically connected with the top end of the packing box, and the collection box 10 is connected with the detection cylinder 20; during oil exploitation, along with the exploitation time increase, the junction of sucker rod and packing box is worn and torn easily, form the clearance between sucker rod and the packing box, the natural gas of taking out to the production tree reveals from the clearance, and then flow into in collecting the box 10, the natural gas gets into inside detecting section of thick bamboo 20 along the filling opening 201 that is linked together from collecting the opening of box 10, gaseous detection device 30 gathers the concentration signal of combustible gas in detecting section of thick bamboo 20, and give controller 50 with concentration signal transmission, controller 50 receives concentration signal and compares concentration signal with predetermineeing concentration, when detecting section of thick bamboo 20 in the concentration of combustible gas reaches predetermineeing concentration, controller 50 control alarm device sends the police dispatch newspaper, the technical staff in time discovers that the sealed inefficacy natural gas of packing box takes place to reveal according to the alarm, and in time take remedial measure to handle.
The leakage monitoring device provided by the embodiment comprises a collecting box 10, a detecting cylinder 20, a gas detecting device 30, a controller 50 and an alarm device, wherein a sucker rod penetrates through the collecting box 10, the bottom end of the collecting box 10 is connected with a packing box, the detecting cylinder 20 is communicated with the collecting box 10, the gas detecting device 30 is arranged in the detecting cylinder 20, and the controller 50 is electrically connected with the gas detecting device 30 and the alarm device; when the friction between the packing box and the sucker rod causes the sealing failure of the packing box, natural gas leaks into the collection box 10 and the detection cylinder 20, the gas detection device 30 collects concentration signals of combustible gas in the detection cylinder 20 and sends the concentration signals to the controller 50, the controller 50 compares the received concentration signals with preset concentration, and if the concentration of the combustible gas in the detection cylinder 20 reaches the preset concentration, the controller 50 controls the alarm device to give an alarm and remind technicians of the occurrence of combustible gas leakage; compared with the regular inspection of technicians, the technicians can find that the packing box is failed in sealing and leaks in time according to the alarm, and take remedial measures to process in time, so that the pumping unit is prevented from being continuously exploited under the condition of the sealing failure of the packing box, and the natural gas is leaked to seriously cause explosion, environmental poisoning and environmental pollution.
Optionally, the leakage monitoring device further includes a liquid detection device 40, the liquid detection device 40 is disposed in the detection cylinder 20, the liquid detection device 40 is electrically connected to the controller 50, and the controller 50 is further configured to control the alarm device to give an alarm when the liquid detection device 40 detects that the liquid level in the detection cylinder 20 reaches a preset height. Through the setting, the leakage condition of petroleum can be monitored when the friction between the packing box and the sucker rod leads to the sealing failure of the packing box, the sealing failure of the packing box is avoided, and a large amount of petroleum leakage leads to explosion, environmental poisoning and environmental pollution.
In one implementable manner, the liquid detection device 40 includes a level sensor disposed within the detection cartridge 20; in particular, the device can be a floating ball type liquid level sensor.
In another implementable manner, the liquid detection device 40 includes: the detection device comprises a floater 401, a light transmitter and a light receiver, wherein the light transmitter and the light receiver are oppositely arranged on the inner wall of a detection barrel 20, the distance between the light transmitter and the light receiver and the barrel bottom of the detection barrel 20 is the same as the preset height, and the light transmitter and the light receiver are electrically connected with a control circuit; the float 401 is disposed in the detection cylinder 20. Compared with a floating ball type liquid level sensor, the liquid level sensor has no mechanical part, achieves the liquid level detection effect by utilizing the optical principle, and has simple detection principle. The float 401 may be spherical, cylindrical or prismatic, and this embodiment is not limited thereto, as long as when the liquid level of the leaked oil in the detection cylinder 20 reaches a preset height, the float 401 can block the light between the light emitter and the light receiver, and is not clamped in the detection cylinder 20; in addition, because petroleum is corrosive, the floating ball can be made of light corrosion-resistant materials such as PP (polypropylene) or PVC (polyvinyl chloride). The working process is as follows: the light ray emitter emits light rays, the light ray receiver arranged opposite to the light ray emitter receives the light rays, when the sealing of the sucker rod and the packing box fails, oil leaks and flows into the collecting box 10 and the detection cylinder 20, and the floater 401 moves upwards under the buoyancy action of the oil in the detection cylinder 20; when the liquid level of the petroleum in the detection cylinder 20 reaches a preset height, the floater 401 moves to a preset height position to shield the light between the light transmitter and the light receiver, and the light receiver cannot receive the light, so that a liquid level signal is generated; light receiver sends liquid level signal for controller 50, and controller 50 compares liquid level signal with predetermineeing highly, and when the liquid level reached and predetermineeing highly, controller 50 control alarm device sent the police dispatch newspaper, and the technical staff in time discovers that the sealed inefficacy oil of packing box takes place to reveal according to the alarm to in time take remedial action to handle.
When oil and natural gas all reveal, hold oil and natural gas in the detection section of thick bamboo 20 simultaneously, because the density of natural gas is less than the density of oil, the oil is located the one end that detects a section of thick bamboo 20 and is close to the bobbin base, and the natural gas is located the one end that detects a section of thick bamboo 20 and is close to the bobbin top, in order to avoid gaseous detection device 30 to submerge unable detection natural gas concentration in the oil, liquid detection device 40 is located between the bobbin base of gaseous detection device 30 and detection section of thick bamboo 20, and gaseous detection device 30 is located the one end that detects a section of thick bamboo 20 and is. Further, the gas detection device 30 has a waterproof function, and the gas detection device 30 is prevented from being damaged when the gas detection device 30 is submerged by oil due to the fact that the oil level in the detection cylinder 20 is too high.
On the basis of the above embodiment, when the leakage is caused by the sealing failure of the sucker rod and the packing box, if only the gas detection device 30 detects that the concentration of the combustible gas reaches the preset concentration or only the liquid detection device 40 detects that the liquid level in the detection cylinder 50 reaches the preset height, the controller 50 controls the alarm device to give a first-level alarm; if the gas detection device 30 detects that the concentration of the combustible gas reaches the preset concentration and the detection device 40 detects that the liquid level in the detection barrel 50 reaches the preset height, the controller 50 controls the alarm device to give a second-level alarm. The primary alarm means that the alarm device gives an alarm, and technicians can know that natural gas leakage or petroleum leakage occurs at the sealing failure position of the packing box according to alarm information; the second-level alarm means that the alarm device gives an alarm, technicians can know that natural gas and oil at the sealing failure position of the packing box are leaked according to alarm information, and meanwhile, the pumping unit is controlled to stop through the remote terminal control device.
When the alarm is a light message and the alarm device is an L ED flashing light, illustratively, the controller 50 controls the L ED flashing light to emit orange light during the first level alarm and the controller 50 controls the L ED flashing light to emit red light during the second level alarm.
Optionally, the leakage monitoring device further includes a first counting device, the first counting device is electrically connected to the controller 50, and the controller 50 is configured to control the alarm device to perform a third-level alarm when the first counting device detects that the number of times of the gas detection device 30 transmitting the concentration signal within the first preset time does not reach the first preset number of times after the leakage monitoring device is started up. The three-level alarm means that the alarm device gives an alarm, and a technician can know that the gas detection device 30 is out of order according to alarm information. Through the arrangement, after the leakage monitoring device is started, the gas detection device 30 is firstly detected, and the situation that the leakage monitoring device cannot normally monitor natural gas leakage due to failure of the gas detection device 30 is avoided. The first preset time is a lower limit value of time that the gas detection device 30 can transmit signals in a normal working state, the first preset times is a lower limit value of times that the gas detection device 30 can transmit signals in the first preset time in the normal working state, the first preset time and the first preset times can be freely set by technicians according to actual needs and experiences, for example, the first preset time is 5s, the first preset times is 5 times, when the leakage monitoring device is started up within 5s, the gas detection device 30 transmits concentration signals to the controller 50, the first counting device records the times that the gas detection device 30 transmits the signals, and if the times do not reach 5 times, the controller 50 controls the alarm device to perform three-level alarm; the first counting device has a function of automatically calibrating zero, and the first counting device may be an electronic counter or an encoder, which is not limited in this embodiment.
Optionally, the leakage monitoring device further includes a second counting device, the second counting device is electrically connected to the controller 50, and the controller 50 is configured to control the alarm device to perform a four-stage alarm when the second counting device detects that the number of times that the liquid level signal is transmitted by the liquid detection device 40 within a second preset time does not reach a second preset number of times after the leakage monitoring device is started up. The four-level alarm means that the alarm device gives an alarm, and a technician can know that the liquid detection device 40 is out of order according to alarm information. Through the arrangement, after the leakage monitoring device is started, the liquid detection device 40 is firstly detected, and the condition that the leakage monitoring device cannot normally monitor petroleum leakage due to failure of the liquid detection device 40 is avoided. The second preset time is a lower limit of time that the liquid detection device 40 can transmit the liquid level signal in a normal working state, the second preset times is a lower limit of times that the liquid detection device 40 can transmit the liquid level signal in the second preset time in a normal working state, and the second preset time and the second preset times can be freely set by technicians according to actual needs and experience. The second counting device is similar to the first counting device, and is not described herein again.
In order to enable technicians to distinguish the three-level alarm from the four-level alarm according to the alarm information so as to take correct remedial measures according to the alarms, the alarm information sent by the alarm device is different when the three-level alarm and the four-level alarm are carried out. When the alarm is text information and the alarm device is a monitoring display screen, illustratively, when the alarm is of three levels, the controller 50 controls the monitoring display screen to send out a word of 'abnormal gas detection device'; when the four-level alarm is given, the controller 50 controls the monitoring display screen to send out the word of 'abnormal liquid detection device'.
In this embodiment, the leakage monitoring device further includes a valve, and the bottom of the detection cylinder 20 is provided with a discharge hole, and the valve is communicated with the discharge hole. Through set up the discharge hole on detecting a section of thick bamboo 20 and with the valve of discharge hole intercommunication for reveal monitoring device and accomplish the warning back once, will detect the release of natural gas or oil in a section of thick bamboo 20 through the discharge hole, thereby make and reveal monitoring device can cyclic utilization.
The valve can be the butterfly valve, and the sealed inefficacy of packing box leads to revealing, and the technical staff is handled the packing box according to the alarm and is ended after, opens the butterfly valve by the technical staff for natural gas or oil in the detection section of thick bamboo 20 are discharged from the discharge hole. Certainly, the valve can also be an electromagnetic valve which is electrically connected with the controller 50, and compared with a butterfly valve, on one hand, the electromagnetic valve is sealed by utilizing the action of electromagnetic force, no dynamic seal exists, the sealing performance is good, and the valve has higher corrosion resistance; on the other hand, the controller 50 is electrically connected to the solenoid valve, and the solenoid valve is automatically controlled to automatically open and close the valve. Specifically, the electromagnetic valve may be a normally closed electromagnetic valve, and the controller 50 controls the normally closed electromagnetic valve to be turned on or off; in the process of oil exploitation, the controller 50 controls the normally closed electromagnetic valve to be powered off, and the valve is closed; when leakage is caused by sealing failure of the packing box, a technician controls the normally closed electromagnetic valve to be electrified and the valve to be opened after the packing box is processed by an alarm, and natural gas or petroleum in the detection cylinder 20 is released; after the release is finished, the controller 50 controls the normally closed solenoid valve to be powered off again, so that the valve is closed, and the leakage monitoring device carries out the next monitoring.
In this embodiment, the collection box 10 is sleeved on the sucker rod, the bottom end of the collection box 10 is connected with the packing box, in order to make the packing box fail in sealing, leaked natural gas or oil can enter from the bottom end of the collection box 10 and does not flow out from the top end of the collection box 10, so as to smoothly collect the natural gas or oil in the collection box 10, the side wall of the first through hole 101 is connected with the sucker rod in a sealing manner, and a gap is formed between the side wall of the second through hole 102 and the sucker rod.
Preferably, be provided with the sealing washer in the first through-hole 101, the sucker rod is worn to establish in the sealing washer to the clearance between shutoff sucker rod and the first through-hole 101 makes sucker rod and first through-hole 101 form sealing connection, and then avoids natural gas or oil to flow out from the clearance. Furthermore, the sealing ring is made of rubber, and has good elasticity and self-sealing performance compared with a metal sealing ring.
The working process of the leakage monitoring device provided by the embodiment is as follows:
before mining, installation is carried out firstly; the collection box 10 is sleeved on the sucker rod, the bottom plate of the collection box 10 is connected with the top end of the packing box in a sealing mode, and the collection box 10 is connected with the detection barrel 20.
Starting mining, and carrying out self-detection on the leakage monitoring device when the leakage monitoring device is started; the gas detection device 30 sends the collected concentration signal of the combustible gas to the controller 50, the first counting device records the times of transmitting the concentration signal within a first preset time, if the times reaches a first preset time, the gas detection device 30 is normal and can perform detection, if the times does not reach the first preset time, the gas detection device 30 fails, the controller 50 controls the alarm device to perform three-level alarm, and timely reminds a technician that the gas detection device 30 fails, and the technician replaces or maintains the gas detection device 30; meanwhile, the liquid level signal that liquid detection device 40 will gather sends for controller 50, the number of times of transmission liquid level signal in the second preset time is recorded to the second counting assembly, if the number of times reaches the second preset number of times, then liquid detection device 40 is normal, can detect, if the number of times does not reach the second preset number of times, then liquid detection device 40 is inefficacy, controller 50 control alarm device carries out the level four warning, and in time remind technical staff liquid detection device 40 to be inefficacy, technical staff changes or maintains liquid detection device 40, thereby ensure that gaseous detection device 30 and liquid detection device 40 all can normally monitor.
In the process of mining, a leakage monitoring device monitors; the gas detection device 30 collects the concentration signal of the combustible gas in the detection cylinder 20 and sends the concentration signal to the controller 50; meanwhile, the liquid detection device 40 collects a liquid level signal in the detection cylinder 20 and sends the liquid level signal to the controller 50; the controller 50 compares the concentration signal with a preset concentration, compares the liquid level signal with a preset height, if the concentration of the combustible gas in the detection barrel 50 is detected to reach the preset concentration, but the liquid level in the detection barrel 50 is detected to not reach the preset height, the controller 50 controls the alarm device to give a first-level alarm, technicians find that the natural gas leakage occurs when the packing box is sealed and failed according to the alarm in time, and take remedial measures to process in time; if the concentration of the combustible gas in the detection cylinder 50 is detected to not reach the preset concentration, but the liquid level in the detection cylinder 50 is detected to reach the preset height, the controller 50 controls the alarm device to give a first-level alarm, technicians find that the oil leakage occurs when the packing box is sealed and failed according to the alarm in time, and take remedial measures to process in time; if the concentration of combustible gas in the detection barrel 50 reaches the preset concentration, and the liquid level in the detection barrel 50 reaches the preset height, the controller 50 controls the alarm device to give an alarm for the second stage, technicians find that the natural gas and the oil which are sealed and failed by the packing box are leaked simultaneously according to the alarm, the remote terminal control device controls the pumping unit to stop, and the technicians take remedial measures to process.
In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", and the like, indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only for convenience of description and simplicity of description, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore, should not be construed as limiting the present invention.
In the present invention, unless explicitly stated otherwise, the terms "mounting," "connecting," "fixing," and the like are to be understood in a broad sense, and for example, may be fixedly connected, detachably connected, or integrally formed, mechanically connected, electrically connected, or communicable with each other; they may be directly connected or indirectly connected through an intermediate medium, or they may be connected internally or in any other manner known to those skilled in the art, unless otherwise specifically limited. The specific meaning of the above terms in the present invention can be understood according to specific situations by those skilled in the art.
Finally, it should be noted that: the above embodiments are only used to illustrate the technical solution of the present invention, and not to limit the same; although the present invention has been described in detail with reference to the foregoing embodiments, it should be understood by those skilled in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some or all of the technical features may be equivalently replaced; such modifications and substitutions do not depart from the spirit and scope of the present invention.
Claims (10)
1. A leak monitoring apparatus, comprising: the gas detection device comprises a collection box, a detection cylinder, a gas detection device, a controller and an alarm device; the top end of the collecting box is provided with a first through hole, the bottom end of the collecting box is provided with a second through hole, and the first through hole and the second through hole are used for a sucker rod to pass through; the bottom end of the collecting box is used for being connected with the packing box;
the detection barrel is communicated with the collection box, the gas detection device is arranged in the detection barrel, the controller is electrically connected with the gas detection device and the alarm device, and the controller is used for controlling the alarm device to give an alarm when the gas detection device detects that the concentration of combustible gas reaches the preset concentration.
2. The leak monitoring device of claim 1, further comprising a liquid detection device disposed within the detection cartridge, the liquid detection device being electrically connected to the controller, the controller being further configured to control the alarm device to issue an alarm when the liquid detection device detects that the liquid level within the detection cartridge reaches a predetermined height.
3. The leak monitoring device of claim 2, wherein the liquid detection device comprises: the light emitter and the light receiver are oppositely arranged on the inner wall of the detection barrel, the distance between the light emitter and the light receiver and the barrel bottom of the detection barrel is the same as the preset height, and the light emitter and the light receiver are both electrically connected with the control circuit; the float is disposed within the detection barrel.
4. The leak monitoring device of claim 2 wherein the liquid detection device is located between the gas detection device and a bottom of the detection cartridge.
5. The leak monitoring device according to claim 4, wherein an injection port is provided on a side wall between the gas detection device and a top of the detection cylinder, the injection port communicating with the collection box.
6. The leak monitoring device according to any one of claims 1-5, further comprising a valve, wherein a drain hole is provided in a bottom of the detection cartridge, and the valve is in communication with the drain hole.
7. The leak monitoring device of claim 6, wherein the valve is a solenoid valve, the solenoid valve being electrically connected to the control.
8. The leak monitoring device of any one of claims 1-5 wherein the side wall of the first through bore is in sealed connection with the sucker rod and the side wall of the second through bore has a gap with the sucker rod.
9. The leak monitoring device of claim 8, wherein a sealing ring is disposed within the first through hole, the sucker rod being disposed through the sealing ring.
10. The leak monitoring device according to any one of claims 1-5, wherein the gas detection device comprises a methane sensor.
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| CN201921572979.4U CN211201933U (en) | 2019-09-20 | 2019-09-20 | Leakage monitoring device |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113218588A (en) * | 2021-04-01 | 2021-08-06 | 新兴铸管股份有限公司 | Alarm device for detecting leakage of pulverized coal bunker |
| CN114439405A (en) * | 2022-01-22 | 2022-05-06 | 北京石油机械有限公司 | Fault monitoring method, device, equipment and medium for blowout preventer control device |
| CN116988780A (en) * | 2023-09-26 | 2023-11-03 | 克拉玛依红山油田有限责任公司 | Wellhead packing puncture leakage alarm method and device |
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2019
- 2019-09-20 CN CN201921572979.4U patent/CN211201933U/en active Active
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113218588A (en) * | 2021-04-01 | 2021-08-06 | 新兴铸管股份有限公司 | Alarm device for detecting leakage of pulverized coal bunker |
| CN113218588B (en) * | 2021-04-01 | 2024-03-26 | 新兴铸管股份有限公司 | Alarm device for detecting leakage of pulverized coal bin |
| CN114439405A (en) * | 2022-01-22 | 2022-05-06 | 北京石油机械有限公司 | Fault monitoring method, device, equipment and medium for blowout preventer control device |
| CN116988780A (en) * | 2023-09-26 | 2023-11-03 | 克拉玛依红山油田有限责任公司 | Wellhead packing puncture leakage alarm method and device |
| CN116988780B (en) * | 2023-09-26 | 2024-01-30 | 克拉玛依红山油田有限责任公司 | Wellhead packing puncture leakage alarm method and device |
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