CN209214344U - A kind of circle gravity assisted heat pipe vaccum-pumping equipment - Google Patents

Abstract

The utility model proposes a kind of round gravity assisted heat pipe vaccum-pumping equipments, including heating equipment, automatic control system and power supply, it is characterized by: heating equipment and automatic control system, power supply is separate structure, heating equipment and automatic control system, heating equipment is connected with power supply by cable, electrothermal furnace is set inside heating equipment, electrothermal furnace slant setting, sealing two ends, there are porous nozzles on top, for being inserted into heat pipe, thermocouple is set inside electrothermal furnace, robot control system(RCS) perceives the in-furnace temperature control power supply start-stop time so that in-furnace temperature is maintained within the scope of the temperature region of setting according to thermocouple, electrothermal furnace is outer to filling thermal insulation material between shell.The utility model solves traditional perfusion vacuumizing method, the problems such as complex procedures, operation difficulty is big, and apparatus assembly is more, high failure rate, and initial cost is big, realizes that process is simple, and easy to operate, failure rate is low, the small purpose of initial cost.

Description

A kind of circle gravity assisted heat pipe vaccum-pumping equipment

Technical field

The utility model relates to a kind of vaccum-pumping equipment, what specifically a kind of pair of round gravity assisted heat pipe was vacuumized is set It is standby.

Background technique

Heat pipe is a kind of heat transfer element with high thermal conductivity, it passes through the evaporation of the working medium in Totally enclosed vacuum shell Heat is transmitted with condensation.Using heat pipe as the heat exchanger of heat transfer element have heat transfer efficiency is high, the resistance of compact-sized, fluid damage it is small, Be conducive to control dew point corrosion the advantages that, be widely used at present metallurgy, chemical industry, oil refining, boiler, ceramics, traffic, light textile, In the industries such as machinery.

As the energy-saving heat exchange of heat pipe of heat energy utilization in waste heat recycling and technical process, commonly using heat pipe is mostly round weight Power heat pipe generally uses metal material.Its fabrication processing mainly includes chemical cleaning, is machined, is filled with working medium, vacuum The main process such as processing, inspection.Wherein it is vacuum-treated the process for needing opposite heat tube to be vacuumized.At present for round gravity heat Pipe, it is main using tradition perfusion vacuumizing method.The method needs that a certain amount of working fluid is first perfused in micro heat pipe, then carries out Vacuumize degasification, commonly referred to as a degasification.One time degasification vacuum degree obtained is lower, 100~10^-1Pa or so.Due to Liquid working fluid can be undergone phase transition with the raising of vacuum degree, generate a large amount of water vapour, therefore cannot completely remove micro- The incoagulable gas of inside heat pipe.In order to avoid the excessive temperature differentials between heat pipe evaporation ends and condensation end, need further to remove Incoagulable gas.Using traditional perfusion vacuumizing method, complex procedures, operation difficulty is big；Apparatus assembly is more, high failure rate, just It invests larger.

Summary of the invention

The utility model provides a kind of round gravity assisted heat pipe vaccum-pumping equipment, it is intended to solve process existing in the prior art Complexity, operation difficulty is big, and equipment failure rate is high, the larger problem of initial cost.The equipment is only needed disposably to operate and can be excluded Incoagulable gas, process is simple, easy to operate；Equipment composition is simpler, and component faults rate used is low, when ensureing that the equipment is long Between stable operation；In addition, vaccum-pumping equipment is perfused compared with tradition, initial cost is smaller.

To achieve the above objectives, the present invention adopts the following technical solutions:

A kind of circle gravity assisted heat pipe vaccum-pumping equipment, including heating equipment, automatic control system and power supply.The round weight Power heat pipe vaccum-pumping equipment is fixed on level ground, and electrothermal furnace, the electrothermal furnace slant setting, bottom end envelope are arranged inside equipment Mouthful, there are porous nozzles on top, for being inserted into heat pipe.The electric heating furnace main body is a DN450 carbon steel pipe, and inside is inside pipe 18 3 meters of long electrical bars are evenly arranged, every electrical bar both ends are individually connected with power supply.Electrical bar surrounds flat inside border circular areas Row arranges three DN100 antipriming pipes, and the hole of 4 row φ 50 is axially provided on porous tube wall, and institute's aperture is conducive to heat transfer, makes heat pipe It is heated evenly.The antipriming pipe bottom end sealing, top is open, for being inserted into heat pipe.To round gravity assisted heat pipe outside the electrothermal furnace Vaccum-pumping equipment shell intermediate region filled thermal insulation materials, greatly reduce heating furnace thermal loss, make furnace temperature keep stablizing, subtract It few electrical bar working time, achieves energy-saving and emission reduction purposes.

Heat pipe passes through chemical cleaning, machining, opens an aperture at one end after sealing two ends, is filled according to heat pipe thermodynamic metering Enter quantitative working medium.By the control of heating equipment in-furnace temperature between 400~450 DEG C, the heat pipe vaccum-pumping equipment passes through thermoelectricity Even summation robot control system(RCS) carries out real-time control to temperature, therefore in-furnace temperature is stablized in set interval.By the non-aperture end of the heat pipe It is inserted into heating equipment antipriming pipe nozzle.By high-temperature heating, inside heat pipe division of labor matter is under high temperature action by liquid endothermic transition For gaseous state, increase hot overpressure, incoagulable gas is discharged.After incoagulable gas discharge in heat pipe, by heat pipe from adding It is extracted out in hot equipment, blocks the hole that heat pipe one end is opened with pin rapidly, avoid incoagulable gas by suck-back product heat cal rod, by pin Place is welded, and heat pipe is made to form airtight vacuum state.

Since vacuum only has, primary heating is vented and the process of electric welding closing pipe end, process are simple.In-furnace temperature It is controlled by robot control system(RCS), is not required to manual control, it is easy to operate.The heat pipe vaccum-pumping equipment is only by heating equipment and control system It constitutes, equipment is constituted simply, and failure rate is low.Equipment is mainly made of shell, carbon steel pipe, electrical bar, control system, initial investment It is low.

It can be seen that the heat pipe vaccum-pumping equipment has process simple, operation is easy, and failure rate is low, and initial investment is low Beneficial effect.

Detailed description of the invention

Fig. 1 is the utility model front view；

Fig. 2 is Fig. 3 B-B direction cross-sectional view；

Fig. 3 is Fig. 1 sectional view along A-A；

Each list of reference numerals in figure are as follows: 1, antipriming pipe, 2, front apron, 3, electric heating furnace body, 4, thermal insulation material, 5, shell, 6, Thermocouple, 7, electrothermal furnace sealing plate, 8, electrical bar.

Specific embodiment

With reference to the accompanying drawing and specific embodiment the utility model is described in further detail.

Referring to Fig. 1, Fig. 2, Fig. 3, the utility model is a kind of heat pipe vaccum-pumping equipment, it includes 1, antipriming pipe, 2, front Plate, 3, electric heating furnace body, 4, thermal insulation material, 5, shell, 6, thermocouple, 7, electrothermal furnace sealing plate, 8, electrical bar.Shell 5 is fixed on On level ground, enclosure interior tilts fixed electric heating furnace body 3, is filled between electric heating furnace body 3 and shell 5 with thermal insulation material 4, To achieve the purpose that insulation, the time that electrical bar 8 works is reduced, is played the role of energy saving.Electric heating furnace body both ends It is closed with electrothermal furnace sealing plate, forms heating environment.3 antipriming pipes 1,1 tube wall of antipriming pipe is arranged in 3 intermediate parallel of electric heating furnace body Upper axial direction is provided with the hole of 4 row φ 50, and institute's aperture is conducive to heat transfer, is heated evenly heat pipe.1 top end opening of antipriming pipe, for insertion Heat pipe is used, and bottom end sealing is played the role of supporting heat pipe.Electric heating furnace body 3 is evenly arranged with 18 electrical bars on the inside of cylinder 8,8 both ends of electrical bar are connected to power supply by cable.Electric heating furnace body middle position is provided with thermocouple 6, passes through thermocouple temperature sensitive With robot control system(RCS) linkage control electrical bar working time and start and stop, the temperature range of setting is kept the temperature at.

When heat pipe is by chemical cleaning, machining, an aperture is opened in heat pipe one end after sealing two ends, according to heat pipe thermal technology Calculating is filled with quantitative working medium.Heat pipe is tilted into insertion 1 nozzle of antipriming pipe to 1 bottom of antipriming pipe by non-aperture end.Electrothermal furnace at this time Should be kept in furnace body 3 set 400~450 DEG C between.If temperature deficiency sets minimum, thermocouple 6 is by temperature value It reports to robot control system(RCS), robot control system(RCS) work, opens the switch of electrical bar 8 and be powered, so that the work of electrical bar 8 is generated heat, make electric heating Temperature is increased to setting maximum value in furnace body 3.After reaching set temperature maximum value, thermocouple 6 reports temperature value to certainly Control system, robot control system(RCS) work disconnect electrical bar 8 and switch, electrical bar is made to stop heating.Temperature, which reaches, in electric heating furnace body 3 sets Determine temperature range, is heated the heat pipe in antipriming pipe 1 by heat radiation.The heated explosive evaporation vaporization of working medium in heat pipe, The incoagulable gas in heat pipe is discharged, when cyan flue gas is emerged in the aperture of heat pipe end institute, judges to reach vacuum shape in heat pipe at this time State.Heat pipe is extracted out, the opened aperture in heat pipe end is blocked with pin rapidly, avoids incoagulable gas by suck-back product heat cal rod.With It is welded at electric weld handle pin, heat pipe is made to reach sealing vacuum state.

Claims (4)

1. a kind of circle gravity assisted heat pipe vaccum-pumping equipment, including heating equipment, automatic control system and power supply, it is characterised in that: Heating equipment and automatic control system, power supply are separate structure, and heating equipment and automatic control system, heating equipment and power supply are logical Cable is crossed to be connected.

2. circle gravity assisted heat pipe vaccum-pumping equipment as described in claim 1, it is characterised in that: cloth inside the heating equipment Electrothermal furnace is set, the electrothermal furnace slant setting, sealing two ends, there are porous nozzles on top, for being inserted into heat pipe.

3. circle gravity assisted heat pipe vaccum-pumping equipment as described in claim 1, it is characterised in that: add inside the heating equipment Hot stove is outer to region filled thermal insulation materials between apparatus casing, reduces heating furnace thermal loss.

4. circle gravity assisted heat pipe vaccum-pumping equipment as claimed in claim 2, set in the electrothermal furnace arranged inside heating equipment In-furnace temperature can be perceived by setting one, and signal is fed back to the thermocouple of automatic control system.