CN201560730U

CN201560730U - Oil casing pipe coupler detaching equipment

Info

Publication number: CN201560730U
Application number: CN2009202425674U
Authority: CN
Inventors: 张利民; 熊荣; 王健; 杜仁刚
Original assignee: Zigong Fangyuan Oil & Gas Field Development Service Co Ltd
Current assignee: Zigong Fangyuan Oil & Gas Field Development Service Co Ltd
Priority date: 2009-10-16
Filing date: 2009-10-16
Publication date: 2010-08-25
Anticipated expiration: 2019-10-16

Abstract

Disclosed is oil casing pipe coupler detaching equipment which is characterized by comprising a high-frequency current generator 1, a circulating water tank 2 and an induction heater 3. A water pump and a fan are arranged inside the circulating water tank 2, an induction ring 31 is arranged inside the induction heater 3 and formed by a copper tube 4 which is encircled with multiple circles, insulation mica 32 is filled outside the induction ring 31, and an outer casing adopts an insulation board 5. The induction heater 3 is sleeved outside a to-be-detached oil casing pipe coupler, a power source of the high-frequency current generator 1 is started, the high-frequency current generator outputs high-frequency current and generates an alternating magnetic field through the induction ring 31, the alternating magnetic field can penetrate through a workpiece placed in the induction ring 31 to induce current and heat the workpiece fast, and then the oil casing pipe coupler can be detached. The oil casing pipe coupler detaching equipment is fast in heating speed and high in efficiency, and only needs to heat a portion required to be heated. The workpiece seldom deforms, and the surface of the workpiece can not be oxidized in a short heating time, thereby saving materials, avoiding pollution and bringing convenience for controlling heating temperature and heating time.

Description

Petroleum casing pipe box cupling dismounting equipment

Technical field

The utility model relates to petroleum casing pipe box cupling dismounting equipment.

Background technology

Be to couple together with the screw thread box cupling between the petroleum casing pipe, when needs dismounting petroleum casing pipe, conventional method one is to blow over outer box cupling heating with naked light; The 2nd, with high frequency electric eddy-current heating (prior art China Patent No. 200510100038.7, denomination of invention " open-mouth type induction-ring device ").These two kinds of methods all are not suitable for the heating of petroleum casing pipe box cupling, and defective is the work that they can only use minor diameter, and also fragile internal thread causes whole petroleum pipeline crossfire useless, because the diameter of petroleum casing pipe box cupling is bigger, heating is just very difficult.

Summary of the invention

The purpose of this utility model provides a kind of petroleum casing pipe box cupling dismounting equipment, utilizes high frequency electric eddy-current heating petroleum casing pipe box cupling, with petroleum casing pipe box cupling for convenience detach, and unlikely damage sleeve pipe internal thread, convenient for maintaining and replacing.

See Fig. 1, petroleum casing pipe box cupling dismounting equipment comprises high-frequency current generator 1, cyclic water tank 2, induction heater 3, in the cyclic water tank 2 is water pump and fan, see Fig. 4, induction coil 31 is arranged in the induction heater 3, induction coil 31 is made up of around multi-turn copper pipe 4, insulation mica 32 is filled in outside the induction coil 31, see Fig. 3, the shell of induction heater 3 is insulating slabs 5, and the power line 34 of high-frequency current generator 1 is connected on the side power cord connector 35 of induction heater 3, and cyclic water tank 2 is connected in the circulating water pipe wire terminal 36 by circulating water pipework 33, copper pipe 4 connects on the power cord connector 35, and circulating water pipe wire terminal 36 is connected with the internal cavities of copper pipe 4.

Operating principle and characteristics

Induction coil 31 is enclosed within outside the box cupling to be removed, open the power supply of high-frequency current generator 1, high-frequency current generator 1 output high frequency electric, behind the copper pipe in the induction coil 31 4, produce alternating magnetic field, alternating magnetic field can run through and is placed on the workpiece in the induction coil 31 and induces electric current, and workpiece is heated rapidly, and the recirculated waters in the copper pipe 4 play cooling effect.

Therefore compare with other mode of heatings and have following characteristics:

1, firing rate is fast, efficient is high;

2, only to the position heating of needs heating, the distortion of workpiece is little;

3, make surface of the work non-oxidation layer, economical with materials because of heat time heating time is short;

4, simple to operate, condition of labor is good, and is pollution-free;

5, heating-up temperature and heat time heating time be can control easily, heating quality and continuous productive process guaranteed easily;

Description of drawings

Fig. 1 is structure collectivity figure of the present utility model.

Fig. 2 is induction heater 3 main TV structure figure among Fig. 1.

Fig. 3 is the right view of Fig. 2.

Fig. 4 is an A-A direction sectional view among Fig. 2.

Each unit number is as follows among Fig. 1-4:

High-frequency current generator 1, cyclic water tank 2, induction heater 3, induction coil 31, insulation mica 32, circulating water pipework 33, power line 34, power cord connector 35, circulating water pipe wire terminal 36, copper pipe 4, insulating slab 5.

The specific embodiment

Use step

1, suitable induction coil 31 is installed, inductor 3 is enclosed within workpiece need heating place, forbids workpiece short circuited inductance circle.

2, connect external power, fan should rotate, otherwise checks external power.

3, connect the pump power switch, check discharge, flow meets the demands, otherwise can not carry out following operation.

4, open panel " power switch ", " power supply " indicator lamp is bright.

5, " control is changed " puts " manually ".

6, press heater switch, the beginning heated parts when treating that workpiece reaches temperature requirement, is pressed shutdown switch.

7, if " control conversion " puts " automatically ", " heating is regularly " can be provided with and press " startup " heat time heating time " 1-99S or 0.01S-99H ", the time can be stepped on " foot switch " and replace by " startup " to stopping automatically.

8, power output is transferred in rotation " power adjusting ", if overcurrent occurs, disconnects heater switch earlier, and elimination is built by " resetting " in the back.

9, take out heated parts (or inductor 3), place another part heated parts again, repeat 7,8 steps.

10, close panel " power switch "

11, after 5 minutes, the power supply that switches off the pump (allowing the water circulation multiple spot time keep unimpeded).

Using method and points for attention

1, should check earlier before the heated parts whether water system is normal, and cooling water should clean free from admixture, if water quality is too poor, just add strainer at the water inlet place, coolant-temperature gage is controlled at below 35 ℃, forbids lack of water during work.Every half a year or one-year age should prevent to stop up regularly with watery hydrochloric acid or scale remover cleaning machine interior conduit incrustation scale.

2, should prevent induction coil 31 short circuits in the use.

3, induction coil 31 should keep clean at any time, and the multiturn induction coil more should be like this, and to prevent turn-to-turn short circuit, electric contact points should keep totally anti-oxidation.Not handy other any materials go the antiseepage leakproof.

4, main power device all adopts water-cooled in the machine, the temperature of cooling water is most important to the cooling effect of power device, in the off time of work, please do not close cooling water, for cyclic duration factor is that user's cooling water water temperature of 100% is preferably lower than 30 ℃. every day end-of-job, preferably the cooling water in the machine interior conduit is bled off, prevent that dewfall is made moist, broken down in the machine.

Claims

1. the petroleum casing pipe box cupling is dismantled equipment, its feature comprises high-frequency current generator (1), cyclic water tank (2), induction heater (3), in the cyclic water tank (2) is water pump and fan, induction coil (31) is arranged in the induction heater (3), induction coil (31) is made up of around multi-turn copper pipe (4), insulation mica (32) is filled in outside the induction coil (31), the shell of induction heater (3) is insulating slab (5), the power line (34) of high-frequency current generator (1) is connected on the side power cord connector (35) of induction heater (3), cyclic water tank (2) is connected in the circulating water pipe wire terminal (36) by circulating water pipework (33), copper pipe (4) connects on the power cord connector (35), and circulating water pipe wire terminal (36) is connected with the internal cavities of copper pipe (4).