CN2849139Y

CN2849139Y - Solar energy automatic gas extraction well head device

Info

Publication number: CN2849139Y
Application number: CN 200520034381
Authority: CN
Inventors: 曾凡苏; 曾杰
Original assignee: Individual
Current assignee: Individual
Priority date: 2005-06-06
Filing date: 2005-06-06
Publication date: 2006-12-20
Anticipated expiration: 2015-06-06

Abstract

The utility model relates to a solar energy automatic gas extraction well head device, which is used for the automatic exploitation of natural gas and belongs to the field of the assembly and manufacturing technology of an unattended operation well head which is automatically explored for natural gas. The utility model comprises a group of solar battery boards, a chargeable battery supply and a monitoring and actuating mechanism, wherein the solar battery boards supply energy resources. A sensor automatically detects pressure of the well head and pressure of a pipe net. A control device commands a pneumatic actuating valve to automatically close a well or open the well according to setting pressure values. The problems that the gas exploitation of the existing low voltage gas well is watched by people or periodically monitored. The utility model can uninterruptible and automatic work more than 17, 000 hours, can realize the purpose of automatic intermittent and gas transportation within a setting range, and can also automatically close a well head to prevent the leakage of natural gas to the utmost extent when the pressure of a gas transportation pipe network is lower than the setting pressure or when the pressure of the gas transportation pipe network exceeds a high voltage. Unattended operation and automatic safe gas transportation can be realized.

Description

The automatic gas wellhead equipment of a kind of solar energy

Technical field: the automatic gas wellhead equipment of a kind of solar energy, be used for the automatic exploitation of natural gas, belong to the natural gas unmanned well head equipment manufacturing technology field of exploitation automatically.

Background technology: in the prior art, being used for gas extraction all is the gas production wellhead that installs and fixes basically, under the situation that is also had pressure by the natural gas well exploited, flow to gas line network by the gas production wellhead that is installed in well head, but, in the later stage that gas well is produced, pressure can be more and more lower in the well, take closing well to wait for after pressure recovers and to continue gas transmission, for this gas well, because its pressure is lower than ductwork pressure, the perhaps gas well that can not continue to keep-up pressure, perhaps low pressure producing well, with the gas production of existing well head gas producing device, just can only send someone on duty or regularly patrol well, earlier head valve is closed, by the time down-hole pressure rises, when reaching rated pressure, just by manually opening valve, allow the natural gas in the well enter pipe network, the shortcoming of prior art is: because the producing well overwhelming majority of natural gas is all in remote place, in order to allow these wells reach the pressure of specified production, just must arrange the fixed personnel or the well of regularly sending someone to patrol, wait for that pressure rises to the work of the gas production that just can drive a well after the rated pressure so that finish closing well, one of such method is patrolled the well workman and is not arrived several mouthfuls of wells every day, and operating efficiency is very low, but also waste of manpower and material resources, having potential safety hazard simultaneously, is very disadvantageous to the low-cost natural petroleum gas field strategy of carrying out at present particularly.

Summary of the invention: the purpose of this utility model is will design a kind ofly to provide the energy by solar panel, the automatic gas wellhead equipment of solar energy of being carried out closing well or being driven a well by the sensor with automatic detection well head pressure and pressure of gas line network and executing agency and pneumatic execution valve.

The utility model comprises power supply, observing and controlling and executing agency; Power sector has one group of solar panel and chargeable battery, and solar panel is arranged on the top of a pole, and a battery compartment is arranged on pole; Observing and controlling mechanism comprises control device and checkout gear, and control device is made of a controller that is arranged in the control cabinet, and checkout gear has the pressure sensor that is arranged on the well head and is arranged on the appendix; Executing agency comprises source of the gas part and operating part, and source of the gas partly is provided with the gas source purification device source of the gas is carried out desulfurization and dehydration and purified treatment, and a gas bomb; Operating part comprises pneumatic execution valve that is arranged on the well head pipeline and the electromagnetic valve that is arranged on the pneumatic execution valve top execution valve cylinder; During work, provide power supply by battery for the controller in the control cabinet, 24 hours uninterrupted, when the pressure of well head during greater than the distribution pressure set, the pressure sensor that is arranged on the well head can be passed to controller with signal, controller is given and is arranged on instruction of electromagnetic valve of carrying out on the valve cylinder, electromagnetic valve is opened led to the air supply channel of carrying out valve cylinder lower end, at this moment, make the piston stroking upward of carrying out in the valve cylinder open pneumatic execution valve and well head is opened by the gas bomb air feed, gas well is to the gas line network air feed; When gas well pressure drops to the setting shut-in pressure, the pressure sensor of well head can be given signal of controller again, controller sends signal to the electromagnetic valve that is arranged on the pneumatic execution valve again, close the air supply channel that leads to pneumatic execution valve cylinder lower end, open the air supply channel of upper end, and air feed promotes piston to descending, closes the gas distribution channel of well head, carries out closing well and waits for that pressure rises; Electromagnetic valve of the present utility model is the 3 position-5 way electromagnetic valve, and when being an end air feed of execution valve cylinder, the other end can be used as steam vent, can discharge the gas of staying the cylinder other end; Be arranged on the pressure that pressure sensor on the appendix is used to detect gas pipeline and change, when well head pressure during greater than the permissible working pressure of gas line network, controller will send instruction and cut out pneumatic execution valve, makes gas well stop gas production with protection gas line network safety; When gas line network blast suddenly caused the ductwork pressure bust and is lower than setting value, the pressure sensor that is arranged on the appendix can be transferred to controller with signal, and controller also can send instruction and cut out pneumatic execution valve.

Advantage of the present utility model and beneficial effect are: through test, the solar panel of employing is a charge in batteries, can make the battery non-stop run more than 17,000 hours, and control device can be 1,000m ³To 100,000m ³The gas transmission scope in the automatic pneumatic execution opening of valves of control or close well head, reach the purpose of automatic gas transmission at intermittence, the pressure sensor that is arranged on the pneumatic execution valve outlet port end appendix plays the monitoring effect to gas line network, when the leakage of generation pressure of gas line network causes being lower than setting pressure, when perhaps causing pressure of gas line network super-pressure because of the pipe network user is few, this device can be closed well head automatically, prevent that to greatest extent natural gas from leaking, realize the automatic gas transmission of unmanned, the man power and material be can save, the staff and the working strength of workers of regularly patrolling well reduced.

Description of drawings:

Fig. 1 is a scheme of installation of the present utility model.

The specific embodiment: provide embodiment of the present utility model below in conjunction with accompanying drawing: the utility model comprises power supply, observing and controlling and executing agency; Power sector has one group to be the solar panel 10 and the battery 20 of charge in batteries, and solar panel 10 is arranged on the top of a pole 19, is provided with a sealed cell storehouse 11 of placing battery 20 on the top of pole 19; Observing and controlling mechanism comprises control device and checkout gear, control device is made of the controller in the control cabinet 12 that is arranged on a sealing, checkout gear comprises two fax pneumatic transmitters 2 and 14, one is arranged between pneumatic execution valve 6 and the well head 1, and another is arranged on the rear end of the ball-and-seat 13 of pneumatic execution valve 6 outlets one side natural gas transmission pipe 17; Executing agency comprises air supply processing equipment and pneumatic execution valve, between the devulcanizer 9 of air supply processing equipment and appendix 17, be provided with a ball-and-seat 16 and a pressure regulator 18, pressure regulator 18 is adjusted to required operating pressure with ductwork pressure and is resupplied devulcanizer 9 and dehydrator 8, and the natural gas after purifying is stored in the gas bomb 7; Operating part has pneumatic execution valve 6, the execution valve cylinder 5 that is arranged on the well head pipeline and is arranged on the 3 position-5 way electromagnetic valve of carrying out on the valve cylinder 53, air pipe one end of 3 position-5 way electromagnetic valve 3 connects gas bomb 7, the other end connects the upper and lower turnover air pipe of carrying out valve cylinder 5, and its coil circuit is connected with controller; Being in closed condition with well head is example: during work, provide power supply by battery 20 for the controller in the control cabinet 12,24 hours uninterrupted, when the pressure of well head during greater than the distribution pressure set, the pressure sensor 2 that is arranged on the well head 1 can be passed to controller with signal, controller is given and is arranged on 3 one instructions of electromagnetic valve of carrying out on the valve cylinder 5, electromagnetic valve 3 is opened led to the air supply channel of carrying out valve cylinder 5 lower ends, at this moment, by the piston stroking upward in the purified gas promotion execution valve cylinder 5 of gas bomb 7, open pneumatic execution valve 6 and open well head to the appendix gas transmission, because the piston in the execution valve cylinder 5 is linked together by the flashboard of valve rod and pneumatic execution valve 6, so, when piston stroking upward, also can drive flashboard and upwards well head be opened; When well head pressure drops to the setting shut-in pressure, the pressure sensor 2 of well head can be given signal of controller again, controller sends instruction to the electromagnetic valve of carrying out on the valve cylinder 53 again, open and lead to the air supply channel of carrying out valve cylinder 5 upper ends, promote piston to descending, thereby close the gas distribution channel of well head, stop gas transmission; Electromagnetic valve 3 of the present utility model is the 3 position-5 way electromagnetic valve, and therefore, when being an end air feed of execution valve cylinder 5, the other end can be used as steam vent, can discharge the gas of staying the cylinder other end; The pressure sensor 14 that is arranged on pneumatic execution valve 6 port of export pipelines is arranged in the safety box 15, be used to detect the pressure variation of appendix 17, when the pressure in the appendix 17 is greater than or less than setting value, or when abnormal conditions occurring, the signal that pressure changes all can be transferred to controller, controller all can send instruction makes pneumatic execution valve 6 close well head, stops gas transmission, thereby guarantees the network security operation; Be provided with a handwheel 4 on execution valve cylinder 5 tops, be used for manually driving a well or closing well.

Claims

1, the automatic gas wellhead equipment of a kind of solar energy comprises power supply, observing and controlling and executing agency, it is characterized in that:

A. described power sector comprises solar panel and battery, and battery is arranged in the battery compartment of a sealing;

B. described source of the gas mechanism comprises a devulcanizer, a dehydrator and a gas bomb, and dehydrator is arranged between devulcanizer and the gas bomb, and a ball-and-seat and a pressure regulator are arranged between devulcanizer and gas pipeline;

C. described observing and controlling mechanism comprises two pressure sensors, and one is arranged between pneumatic execution valve and the well head, and another is arranged on the rear end of the ball-and-seat on the pneumatic execution valve outlet port one side appendix;

D. described executing agency comprises pneumatic execution valve and electromagnetic valve, and electromagnetic valve is a 3 position-5 way electromagnetic valve, and its air pipe one end connects gas bomb, and the other end connects the upper and lower turnover air pipe of carrying out the valve cylinder, and the coil circuit of electromagnetic valve is connected with controller.

2, the automatic gas wellhead equipment of a kind of solar energy according to claim 1 is characterized in that:

Described controller is arranged in one the control cabinet.

3, the automatic gas wellhead equipment of a kind of solar energy according to claim 1 is characterized in that:

Be provided with a handwheel on the top of described execution valve cylinder.