CN216386490U

CN216386490U - Gas sensor protection device for monitoring drilling platform

Info

Publication number: CN216386490U
Application number: CN202122780157.9U
Authority: CN
Inventors: 李健昆; 林卫东; 吴名睿; 宣峰
Original assignee: Sinopec Oilfield Service Corp; Sinopec East China Petroleum Engineering Corp
Current assignee: Sinopec Oilfield Service Corp; Sinopec East China Petroleum Engineering Corp
Priority date: 2021-11-12
Filing date: 2021-11-12
Publication date: 2022-04-26
Anticipated expiration: 2031-11-12

Abstract

The utility model relates to a gas sensor protection device for monitoring a drilling platform, which comprises a gas sensor arranged on the drilling platform and used for detecting the concentration of hydrogen sulfide, wherein an explosion-proof box is also arranged on the drilling platform, a condenser, a filter, a sampling pump and a flowmeter are arranged in the explosion-proof box, the gas inlet of the condenser is connected with a sampling pipe extending out of the explosion-proof box, the gas outlet of the condenser is sequentially connected with a primary filter, a secondary filter and a dry filter, the outlet of the dry filter is connected with the inlet of the sampling pump, the outlet of the sampling pump is connected with the inlet of the flowmeter, and the outlet pipe of the flowmeter extends out of the explosion-proof box and is connected with the gas inlet of the gas sensor. The water outlet of the condenser is connected with the inlet of the peristaltic pump, the outlet of the peristaltic pump is connected with the water drain pipe, and the outlet of the water drain pipe extends out of the explosion-proof box. The device can reduce the influence of the complex water vapor environment on the drilling site on the gas sensor, protect the gas sensor and improve the monitoring accuracy.

Description

Gas sensor protection device for monitoring drilling platform

Technical Field

The utility model relates to a gas sensor, in particular to a gas sensor protection device for monitoring a drilling platform, and belongs to the technical field of drilling safety devices.

Background

At present, in the normal working process of an oil drilling platform, a hydrogen sulfide gas detection sensor is often used for monitoring the content of harmful gas around a construction area in real time, so that the safety of workers is protected, and accidents are prevented.

Because the oil field exploitation environment is severe, the exploitation process is often affected by regional wind sand and low temperature, and plastic sheds are often used for protecting internal facilities and heat preservation in the use process, so that the humidity of air in the sheds is high, and meanwhile, the gas components in the air are complex due to the influence of certain additives, and are affected by halogen and organic silicon (petroleum) steam, so that the sensitivity of the sensor is often attenuated and the probe of the sensor is corroded, while the harmful gas sensor detection device widely applied to a drilling platform at present is affected by the halogen and the service life of the harmful gas sensor detection device is only one tenth of the service life of the harmful gas sensor detection device under the conventional environment.

SUMMERY OF THE UTILITY MODEL

The utility model aims to overcome the problem of short service life of a gas detector of a drilling platform, and provides a gas sensor protection device for monitoring the drilling platform, which can reduce the influence of a complex water vapor environment on a drilling site on a gas sensor, protect the gas sensor and improve the monitoring accuracy.

In order to solve the technical problems, the utility model provides a gas sensor protection device for monitoring a drilling platform, which comprises a gas sensor arranged on the drilling platform and used for detecting the concentration of hydrogen sulfide, wherein the drilling platform is also provided with an explosion-proof box, the explosion-proof box is internally provided with a condenser, a filter, a sampling pump and a flowmeter, the gas inlet of the condenser is connected with a sampling pipe extending out of the explosion-proof box, the gas outlet of the condenser is sequentially connected with a primary filter, a secondary filter and a dry filter, the outlet of the dry filter is connected with the inlet of the sampling pump, the outlet of the sampling pump is connected with the inlet of the flowmeter, and the outlet pipe of the flowmeter extends out of the explosion-proof box and is connected with the gas inlet of the gas sensor.

As an improvement of the utility model, the water outlet of the condenser is connected with the inlet of a peristaltic pump, the outlet of the peristaltic pump is connected with a water drain pipe, and the outlet of the water drain pipe extends out of the explosion-proof box.

As a further improvement of the utility model, an intelligent controller is installed in the explosion-proof box, current monitoring signal lines of the sampling pump and the peristaltic pump are connected to a signal input end of the intelligent controller, a flow signal line of the flow meter is also connected to a signal input end of the intelligent controller, and a communication port of the intelligent controller is connected to an Internet of things system.

As a further improvement of the utility model, the gas sensor is provided with a gas sensor chip U2, an SCK port of the gas sensor chip U2 is connected with a PA9 port of the transmitting-end main control chip U1A, and a D0 port of the gas sensor chip U2 is connected with a PA10 port of the transmitting-end main control chip U1A; a PB0 port of the transmitting end main control chip U1A is connected with a TXD port of a LORA transmitting module U3A, and a PB1 port of the transmitting end main control chip U1A is connected with an RXD port of a LORA transmitting module U3A; the monitoring end is provided with a receiving end main control chip U1B, a LORA receiving module U3B and a 4G data transmission module U5, a TXD port of the LORA receiving module U3B is connected with a PB0 port of the receiving end main control chip U1B, and an RXD port of the LORA receiving module U3B is connected with a PB1 port of the receiving end main control chip U1B; the PA9 port of the receiving end master control chip U1B is connected to the RXD port of the 4G data transmission module U5, and the PA10 port of the receiving end master control chip U1B is connected to the TXD port of the 4G data transmission module U5.

As a further improvement of the utility model, a temperature sensor for detecting the temperature of the working environment is further mounted on the drilling platform, the temperature sensor is provided with a temperature sensor chip U4, an SCL port of the temperature sensor chip U4 is connected with a PA1 port of the transmitting-end main control chip U1A, and an SDA port of the temperature sensor chip U4 is connected with a PA2 port of the transmitting-end main control chip U1A.

Compared with the prior art, the utility model has the following beneficial effects: the device mainly solves the problem of service life of the traditional industrial gas sensor, protects the sensor probe and prolongs the service life of the sensor. The gas with damage to the sensor is filtered, so that various filtering devices are adopted, the sampling pump adopts a high-speed film air pump to absorb the sampling gas, the non-sampling gas is filtered through the filtering device and finally conveyed to the gas sensor for sampling, and meanwhile, the device is installed in an explosion-proof box due to the explosion-proof requirement of the field environment. Due to the sealing property of the explosion-proof box, the service life of the filtering equipment can be greatly prolonged, and the service life of the equipment is prolonged comprehensively. Meanwhile, the system of the Internet of things is accessed, so that the use condition of the equipment can be remotely monitored. The Lora can also be adopted for data transmission, the complexity of system deployment is reduced, meanwhile, 4G data transmission is used in a remote machine room, field data are collected on a server for field data intelligent monitoring, and meanwhile, real-time alarm pushing can be provided for field personnel through mobile phone short messages, WeChat and the like, so that the working personnel can master the operation condition of the equipment in real time.

Drawings

The utility model will be described in further detail with reference to the following drawings and detailed description, which are provided for reference and illustration purposes only and are not intended to limit the utility model.

FIG. 1 is a flow diagram of a gas sensor protection device for rig monitoring of the present invention;

FIG. 2 is a schematic diagram of a signal transmitting end of a gas sensor according to the present invention;

fig. 3 is a schematic diagram of a signal receiving end of a gas sensor according to the present invention.

In the figure: 1. a sampling tube; 2. a condenser; 3. a first stage filter; 4. a secondary filter; 5. drying the filter; 6. a sampling pump; 7. a flow meter; 8. a gas sensor; 9. a peristaltic pump; 9a, a drain pipe; 10. an intelligent controller; 11. an explosion-proof box; 12. an Internet of things system; u1a. a transmitting end main control chip; U1B, a receiving end main control chip; u2. a gas sensor chip; a u3a.lora sending module; a u3b.lora receiving module U4. temperature sensor chip; U5.4G data transmission module.

Detailed Description

As shown in fig. 1, the gas sensor protection device for monitoring a drilling platform of the present invention includes a gas sensor 8 installed on the drilling platform for detecting a concentration of hydrogen sulfide, the drilling platform is further installed with an explosion-proof box 11, the explosion-proof box 11 is installed with a condenser 2, a filter, a sampling pump 6 and a flow meter 7, an air inlet of the condenser 2 is connected with a sampling pipe 1 extending to the outside of the explosion-proof box 11, an air outlet of the condenser 2 is sequentially connected with a primary filter 3, a secondary filter 4 and a dry filter 5, an outlet of the dry filter 5 is connected with an inlet of the sampling pump 6, an outlet of the sampling pump 6 is connected with an inlet of the flow meter 7, and an outlet pipe of the flow meter 7 extends to the outside of the explosion-proof box 11 and is connected with an air inlet of the gas sensor 8.

The water outlet of the condenser 2 is connected with the inlet of a peristaltic pump 9, the outlet of the peristaltic pump 9 is connected with a water discharge pipe 9a, and the outlet of the water discharge pipe 9a extends out of the explosion-proof box 11.

Under the suction action of the sampling pump 6, the on-site gas of the drilling platform enters from the sampling pipe 1, firstly, the moisture in the gas is removed through the condenser 2, and the water in the condenser 2 is removed through the peristaltic pump 9; then the gas passes through a first-stage filter 3 and a second-stage filter 4 in sequence to filter impurities and large-particle organic silicon in the gas, and the first-stage filter 3 and the second-stage filter 4 can adopt two different filters. And the gas after the two-stage filtration is dried by the drying filter 5 to further remove moisture, then enters the sampling pump 6, is driven by the sampling pump 6 to flow and flows through the flowmeter 7, the flowmeter 7 can adjust the gas flow, and the sampled gas enters the gas sensor 8 to be subjected to gas detection. Through the process, the influence of the complex environment on gas sampling can be reduced, the detection precision of the gas sensor 8 is improved, and the service life of the gas sensor 8 is greatly prolonged.

An intelligent controller 10 is installed in the explosion-proof box 11, current monitoring signal lines of the sampling pump 6 and the peristaltic pump 9 are connected to a signal input end of the intelligent controller 10, a flow signal line of the flow meter 7 is also connected with a signal input end of the intelligent controller 10, and a communication port of the intelligent controller 10 is connected with an internet of things system 12.

The current of the sampling pump 6 is monitored, so that the cleanliness of the filter screens of the filters at all levels is monitored; the flow meter 7 sends a flow signal to the intelligent controller 10, so that the intelligent controller 10 can control the rotating speed of the sampling pump 6 conveniently. By monitoring the current of the peristaltic pump 9, the operating state of the peristaltic pump 9 and the amount of water removed by the condenser 2 can be monitored. The system 12 of the internet of things timely reminds operators and changes the filtering consumables, so that the informatization process of field equipment is promoted, and the intelligent degree of products is improved. The equipment data can be collected and stored through the Internet of things system 12 and used for subsequent big data analysis, and the equipment state can be predicted in advance.

As shown in fig. 2 and 3, the gas sensor 8 is provided with a gas sensor chip U2, the SCK port of the gas sensor chip U2 is connected to the PA9 port of the transmitting-end main control chip U1A, and the D0 port of the gas sensor chip U2 is connected to the PA10 port of the transmitting-end main control chip U1A. A PB0 port of the transmitting-end main control chip U1A is connected to a TXD port of the LORA transmitting module U3A, and a PB1 port of the transmitting-end main control chip U1A is connected to an RXD port of the LORA transmitting module U3A.

A receiving end main control chip U1B, a LORA receiving module U3B and a 4G data transmission module U5 are arranged at a monitoring end of the monitoring machine room, a TXD port of the LORA receiving module U3B is connected with a PB0 port of the receiving end main control chip U1B, and an RXD port of the LORA receiving module U3B is connected with a PB1 port of the receiving end main control chip U1B; the PA9 port of the receiving end master control chip U1B is connected to the RXD port of the 4G data transmission module U5, and the PA10 port of the receiving end master control chip U1B is connected to the TXD port of the 4G data transmission module U5.

The LORA transmitting module U3A and the LORA receiving module U3B are both SX1262ZTR4-GC wireless modules. The sending terminal main control chip U1A and the receiving terminal main control chip U1B are STM32F103CB chips. The 4G data transmission module U5 is an ML302 module.

The D0 port of the gas sensor chip U2 sends the hydrogen sulfide concentration signal to the PA10 port of the transmitting end main control chip U1A, the transmitting end main control chip U1A converts the hydrogen sulfide concentration signal into a corresponding digital signal and sends the digital signal to the RXD port of the LORA transmitting module U3A through the PB1 port, and the TXD port of the LORA transmitting module U3A sends the feedback signal to the PB0 port of the transmitting end main control chip U1A.

The drilling platform is also provided with a temperature sensor for detecting the temperature of the working environment, the temperature sensor is provided with a temperature sensor chip U4, and the model of the temperature sensor chip U4 is LM57 BIM. An SCL port of the temperature sensor chip U4 is connected to a PA1 port of the sender-side main control chip U1A, and an SDA port of the temperature sensor chip U4 is connected to a PA2 port of the sender-side main control chip U1A.

The SCL port of the temperature sensor chip U4 transmits the temperature signal to the PA1 port of the transmitting end main control chip U1A, and the transmitting end main control chip U1A converts the temperature signal into a corresponding digital signal and transmits the digital signal to the LORA transmitting module U3A.

The wireless signal sent by the LORA sending module U3A is received by the LORA receiving module U3B, the TXD port of the LORA receiving module U3B sends the signal to the PB0 port of the receiving end main control chip U1B, and the PB1 port of the receiving end main control chip U1B sends the feedback signal to the RXD port of the LORA receiving module U3B. The PA9 port of the receiving end master control chip U1B sends the signal to the RXD port of the 4G data transmission module U5, and the TXD port of the 4G data transmission module U5 sends the feedback signal to the PA10 port of the receiving end master control chip U1B.

The internet of things Lora is adopted to carry out data transmission, a gas sensor is used at the detector end, the sensor data transmission system is formed by the sending end main control chip U1A and the LORA sending module U3A, the host data receiving module is formed by the LORA receiving module U3B and the receiving end main control chip U1B at the monitoring end of the monitoring machine room, the 4G data transmission module U5 is installed at the host, hydrogen sulfide concentration signals of the gas sensor can be uploaded to a server system, and therefore networking of the alarm system is achieved. The device condition and the alarm information can be timely pushed to the mobile phone of each related responsible person, the situation can be timely notified, the fault can be timely processed, the alarm can be timely protected, the risk is reduced, and the production safety is improved.

The above description is only a preferred embodiment of the present invention, and not intended to limit the scope of the present invention. In addition to the above embodiments, the present invention may have other embodiments. All technical solutions formed by adopting equivalent substitutions or equivalent transformations fall within the protection scope of the claims of the present invention. Technical features of the present invention which are not described may be implemented by or using the prior art, and will not be described herein.

Claims

1. A gas sensor protection device for drilling platform monitoring, is used for surveying the gas sensor of hydrogen sulfide concentration including installing on drilling platform, its characterized in that: drilling platform still installs explosion-proof box, install condenser, filter, sampling pump and flowmeter in the explosion-proof box, the air inlet of condenser links to each other with the sampling pipe that extends to the explosion-proof box outside, the gas vent of condenser links to each other with primary filter, secondary filter and drier-filter in proper order, drier-filter's export with the entry of sampling pump links to each other, the export of sampling pump with the entry of flowmeter links to each other, the outlet pipe of flowmeter extend to the explosion-proof box outside and with gas sensor's air inlet links to each other.

2. The gas sensor protection device for drilling rig monitoring of claim 1, wherein: the water outlet of the condenser is connected with the inlet of the peristaltic pump, the outlet of the peristaltic pump is connected with the water drain pipe, and the outlet of the water drain pipe extends out of the explosion-proof box.

3. The gas sensor protection device for drilling rig monitoring of claim 2, wherein: install intelligent control in the explosion-proof box, the current monitoring signal line of sampling pump and peristaltic pump inserts intelligent control's signal input part, the flow signal line of flowmeter also links to each other with intelligent control's signal input part, intelligent control's communication mouth links to each other with thing networking system.

4. The gas sensor protection device for drilling rig monitoring of claim 1, wherein: the gas sensor is provided with a gas sensor chip (U2), an SCK port of the gas sensor chip (U2) is connected with a PA9 port of a transmitting end main control chip (U1A), and a D0 port of the gas sensor chip (U2) is connected with a PA10 port of the transmitting end main control chip (U1A); a PB0 port of the transmitting end main control chip (U1A) is connected with a TXD port of the LORA transmitting module (U3A), and a PB1 port of the transmitting end main control chip (U1A) is connected with an RXD port of the LORA transmitting module (U3A); the monitoring end is provided with a receiving end main control chip (U1B), a LORA receiving module (U3B) and a 4G data transmission module (U5), a TXD port of the LORA receiving module (U3B) is connected with a PB0 port of the receiving end main control chip (U1B), and an RXD port of the LORA receiving module (U3B) is connected with a PB1 port of the receiving end main control chip (U1B); the PA9 port of the receiving end master control chip (U1B) is connected with the RXD port of the 4G data transmission module (U5), and the PA10 port of the receiving end master control chip (U1B) is connected with the TXD port of the 4G data transmission module (U5).

5. The gas sensor protection device for drilling rig monitoring of claim 4, wherein: the drilling platform is also provided with a temperature sensor for detecting the temperature of a working environment, the temperature sensor is provided with a temperature sensor chip (U4), an SCL port of the temperature sensor chip (U4) is connected with a PA1 port of the sending end main control chip (U1A), and an SDA port of the temperature sensor chip (U4) is connected with a PA2 port of the sending end main control chip (U1A).