CN103014882A - Device for stably controlling temperature by heating medium - Google Patents
Device for stably controlling temperature by heating medium Download PDFInfo
- Publication number
- CN103014882A CN103014882A CN2013100069021A CN201310006902A CN103014882A CN 103014882 A CN103014882 A CN 103014882A CN 2013100069021 A CN2013100069021 A CN 2013100069021A CN 201310006902 A CN201310006902 A CN 201310006902A CN 103014882 A CN103014882 A CN 103014882A
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- temperature
- heating agent
- radiator
- return pipe
- pipe
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Abstract
The invention relates to a device for stably controlling temperature by a heating medium. The device mainly comprises a pneumatic three-way adjusting valve, heat radiators and a temperature sensor, the pneumatic three-way adjusting valve is a pneumatic adjusting valve with one way in and two ways out, the heat radiators are communicated with a return pipe of a heating medium temperature stabilizing system after passing the pneumatic three-way adjusting valve through stop valves, outlet pipes of the heat radiators are communicated with an inlet pipe of the heating medium temperature stabilizing system and are communicated with a return pipe of the pneumatic adjusting valve, and the temperature sensor is connected with a PLC (programmable logic controller) and controls opening of the pneumatic three-way adjusting valve manually or automatically by the aid of the PLC. The device for stably controlling temperature by the heating medium can control the temperature fluctuation of the heating medium temperature stabilizing device within the range of +/- 0.5 DEG C and avoid influences on product quality when temperature fluctuates during filling of the heating medium at high temperature.
Description
Technical field
The present invention relates to a kind of device by heating agent stable circulation control temperature.
Background technology
It is the conductor that heat is provided to whole polyester production device that polyester fondant directly spins middle heating agent, and the heat medium system of polyester device comprises primary fluid, secondary heating agent, and the heating agent of being supplied with whole device by the heating agent station is called primary fluid; Distinct device, pipeline have different temperature requirements in the device, and relative set heating circuit separately is called the secondary heating agent.
The primary fluid system is a complete closed loop, and heating agent enters the stove inner coil pipe by heat medium pump from the hot Media Oven top, and heating also enters the heating agent house steward from furnace bottom output.Heating agent is controlled at about 330 ℃ for polyester device house steward temperature design, the primary fluid system circuit is provided with heating medium expansion slot (being arranged on the peak of polyester device), to compensate heating agent in closed circuit because thermal expansion or contraction that variations in temperature was produced, guarantee the normal stable operation of primary fluid system, heating medium expansion slot has effect degassed, dehydration to secondary liquid phase heat medium system user's circulation line simultaneously.The primary fluid circulatory system for, return between the house steward and be provided with the differential pressure control loop, be used for controlling the conduct heat flow differential pressure of heating agent of house steward, guaranteeing the supply flow rate of primary fluid system, thereby finish the heat transmission between primary fluid system and the secondary heat medium system.The liquid phase heating agent that discharges when liquid phase heating agent low spot feeder is used for the maintenance of collecting device pipeline is set in addition, when the heating agent of certain secondary circuit need to discharge, in being collected in first, uses again pumped back heating agent station; And the vapor phase heating medium feeder is used for collecting the vapor phase heating medium discharging.Each secondary heating agent of being sent here by the heating agent station has adjustment loop separately, the liquid phase loop changes the temperature of secondary heating medium for heating by the magnitude of recruitment of regulating primary fluid, the vapor phase heating medium temperature is regulated by the flow of regulating primary fluid in the vapour phase loop, thereby the temperature of control reaction realizes different temperature control requirement.The secondary heating agent in each adjustment loop compiles sends heating agent station heat temperature raising back to, recycles, and the temperature of primary fluid is subject to the various different faults of hot Media Oven and fluctuates.
The control of existing fused mass directly spinning melt Conveying system spinning temperature mainly is by the control of heating agent partial circulating temperature, and the partial circulating temperature is to replenish pneumatic control valve, one-way throttle valve by high temperature to realize realizing that into and out of the control of lesser circulation flow rate of heat medium and additional cooler the heat dissipation capacity balance of the heat exchange amount of melt and radiator reaches the regulation and control of temperature; This type of temperature control method easily causes difficulty of partial circulating temperature control because the heat dissipation capacity of radiator is uncontrollable when the primary fluid temperature fluctuation, the general fluctuation of temperature is larger; Because can not in time arrive the aperture of stop valve before the relevant radiator of Field adjustment or one-way throttle valve, very easily cause the spinning melt temperature to runaway and cause product to demote; This patent be partial circulating radiator inlet pipe house steward increase a pneumatic regulating three-way valve and fansink designs be several groups in parallel, according to the aperture that the fluctuation situation of primary fluid is in time regulated the threeway pneumatic control valve, reach the purpose of equilibrium temperature.
Summary of the invention
The purpose of this invention is to provide a kind of device by heating agent stable circulation control temperature, primary structure is: described heat medium pipe two ends are connecting tee pneumatic control valve and radiator return pipe respectively; The radiator return pipe is connected with the total inlet pipe of heating agent, has a primary fluid to fill pipe in the junction of radiator return pipe and the total inlet pipe of heating agent, and fills Guan Youyi pneumatic control valve (this pneumatic control valve is controlled by PLC) at the high temperature heating agent; One end of radiator one, radiator two, radiator three, radiator four is connected in series with stop valve one, stop valve two, stop valve three, stop valve four respectively separately, and the other end is UNICOM's radiator return pipe respectively; One end of stop valve one, stop valve two, stop valve three, stop valve four connects heating agent return pipe, heating agent return pipe UNICOM threeway pneumatic operated valve control valve; Temperature sensor is installed on the main heating agent return pipe, and advances heat medium pipe UNICOM temperature sensor and threeway pneumatic control valve with the threeway pneumatic control valve.
Aforesaid a kind of device by heating agent stable circulation control temperature, described temperature sensor is serially connected in the device heating agent and returns on the supervisor; Aperture by the manual/auto control threeway of PLC controller pneumatic control valve is controlled the flow that enters radiator, thus control partial circulating heat medium system heat dissipation capacity.
Aforesaid a kind of device by heating agent stable circulation control temperature, in primary fluid filling temp fluctuation and install other valve opening state when constant, temperature sensor detects actual temperature and design temperature has deviation, the signal that temperature sensor detects is sent to the PLC controller, and the PLC controller is sent to signal the actuator of threeway pneumatic control valve; The aperture of actuator control threeway pneumatic control valve two outlets, the aperture of threeway pneumatic control valve two outlets is complementary relationship, total aperture is 100%; When if actual temperature is higher than design temperature, the actuator of PLC control threeway pneumatic control valve, the aperture of actuator control threeway pneumatic control valve, its flow that reaches by the heating agent return pipe is increased, the flow of the heat medium pipe that connects by the threeway pneumatic control valve reduces, to increase heating agent heat dissipation capacity in the device, reach the stable of the interior heat medium temperature of device.When if actual temperature is lower than design temperature, the actuator of PLC control threeway pneumatic control valve, the aperture of actuator control threeway pneumatic control valve, its flow that reaches by the heating agent return pipe is reduced, the heat medium pipe that connects by the threeway pneumatic control valve flow increase, to reduce heating agent heat dissipation capacity in the device, reach the stable of the interior heat medium temperature of device.When the radiating effect of radiator is better, can close the valve group of wherein partly dispelling the heat.The group number of other radiator can or reduce actual heat radiation group number in the increase of existing basis according to different heat dissipation capacities and reach different production requirements.
A kind of device by heating agent stable circulation control temperature of the present invention, realized that temperature fluctuates when primary fluid is filled, the steady temperature of heating agent be the temperature fluctuation of device can be controlled in ± 0.5 ℃ of scope in, avoid high temperature to fill heat medium temperature impact on product quality when fluctuation occurs, realized especially the stable control of the used partial circulating heat medium temperature of melt cooler in the fused mass directly spinning, guarantee spinning temperature stable of fused mass directly spinning, avoid the fluctuation of spinning temperature on the impact of product inherent quality, remedied the deficiencies in the prior art.
Description of drawings
Fig. 1 is a kind of device schematic diagram by heating agent stable circulation control temperature of the present invention
Wherein 1 is that the total inlet pipe 2 of heating agent is that the high temperature heating agent is filled pipe
The 3rd, main heating agent return pipe 4 is heat medium pipes
The 5th, threeway pneumatic control valve 6 is into heat medium pipe
The 7th, temperature sensor 8 is radiator return pipes
The 9th, heating agent return pipe 10 is stop valves one
The 11st, stop valve 12 is stop valves three
The 13rd, stop valve 4 14 is radiators one
The 15th, radiator 16 is radiators three
The 17th, radiator 4 18 is pneumatic control valves
The specific embodiment
Below in conjunction with the specific embodiment, further set forth the present invention.
As shown in drawings, be a kind of device by heating agent stable circulation control temperature of the present invention, described heat medium pipe 4 two ends are connecting tee pneumatic control valve 5 and radiator return pipe 8 respectively; Radiator return pipe 8 is connected with the total inlet pipe 1 of heating agent, has a high temperature heating agent to fill pipe 2 in the junction of radiator return pipe 8 and the total inlet pipe 1 of heating agent, fills pipe 2 original pneumatic control valves 18 at the high temperature heating agent; One end of radiator 1, radiator 2 15, radiator 3 16, radiator 4 17 is connected in series with stop valve 1, stop valve 2 11, stop valve 3 12, stop valve 4 13 respectively separately, and the other end is UNICOM's radiator return pipe 8 respectively; One end of stop valve 1, stop valve 2 11, stop valve 3 12, stop valve 4 13 connects heating agent return pipe 9, heating agent return pipe 9 UNICOMs threeway pneumatic operated valve control valve 5; Temperature sensor 7 is installed on the main heating agent return pipe 3, and with advancing heat medium pipe 6 UNICOM's temperature sensors 7 and threeway pneumatic operated valve control valve 5.
Through evidence, a kind of device by heating agent stable circulation control temperature of the present invention, realized when high temperature is filled heat medium temperature generation fluctuation, the temperature fluctuation of the steady temperature system and device of heating agent can be controlled in ± 0.5 ℃ of scope in, avoid high temperature to fill heat medium temperature impact on product quality when fluctuation occurs, realized especially the stable control of the used partial circulating heat medium temperature of melt cooler in the fused mass directly spinning, the spinning temperature of guaranteeing fused mass directly spinning is stable, avoid the fluctuation of spinning temperature on the impact of product inherent quality, remedied the deficiencies in the prior art.
Claims (1)
1. the device by heating agent stable circulation control temperature is characterized in that: described heat medium pipe (4) two ends difference connecting tee pneumatic control valve (5) and radiator return pipe (8); Radiator return pipe (8) is connected with the total inlet pipe of heating agent (1), there is a high temperature heating agent to fill pipe (2) in the junction of radiator return pipe (8) and the total inlet pipe of heating agent (1), and at high temperature heating agent filling pipe (2) pneumatic control valve (18) arranged; One end of radiator one (14), radiator two (15), radiator three (16), radiator four (17) is connected in series with stop valve one (10), stop valve two (11), stop valve three (12), stop valve four (13) respectively separately, and the other end is UNICOM's radiator return pipe (8) respectively; One end of stop valve one (10), stop valve two (11), stop valve three (12), stop valve four (13) connects heating agent return pipe (9), heating agent return pipe (9) UNICOM's threeway pneumatic control valve (5); Temperature sensor (7) is installed on the main heating agent return pipe (3), and with advancing heat medium pipe (6) UNICOM's temperature sensor (7) and threeway pneumatic control valve (5).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013100069021A CN103014882A (en) | 2013-01-08 | 2013-01-08 | Device for stably controlling temperature by heating medium |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013100069021A CN103014882A (en) | 2013-01-08 | 2013-01-08 | Device for stably controlling temperature by heating medium |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN103014882A true CN103014882A (en) | 2013-04-03 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2013100069021A Pending CN103014882A (en) | 2013-01-08 | 2013-01-08 | Device for stably controlling temperature by heating medium |
Country Status (1)
| Country | Link |
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| CN (1) | CN103014882A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114151850A (en) * | 2021-11-19 | 2022-03-08 | 北京航天石化技术装备工程有限公司 | Heating medium system capable of being debugged in a split-ranging manner and debugging method |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4708287A (en) * | 1984-12-24 | 1987-11-24 | Nederlandse Centrale Organisatie Voor Toegepast-Natuurwe-Tenschappelijk Onderzoek | Apparatus for adjusting a central heating installation |
| DE3620929A1 (en) * | 1986-06-23 | 1988-01-07 | Centra Buerkle Gmbh & Co | Method and device for controlling at least one heating installation |
| JPH07217917A (en) * | 1994-01-24 | 1995-08-18 | Tokyo Gas Co Ltd | Central heating/hot water supply system |
| CN201222906Y (en) * | 2008-07-21 | 2009-04-22 | 上海都市绿色工程有限公司 | Intelligent type greenhouse heating apparatus |
| DE102009010493A1 (en) * | 2009-02-25 | 2010-09-02 | Theodor Heimeier Metallwerk Gmbh | Heating system for buildings, is provided with condensing boiler, heating medium pump, heating medium feed pipe, heating medium return line and radiator |
| CN202002214U (en) * | 2011-01-28 | 2011-10-05 | 浙江中新能源发展有限公司 | Back-drainage concentration-individual solar water heating system utilizing water as heating medium |
| CN203012552U (en) * | 2013-01-08 | 2013-06-19 | 宁波康鑫化纤股份有限公司 | Apparatus for controlling temperature stably through heat medium circulation |
-
2013
- 2013-01-08 CN CN2013100069021A patent/CN103014882A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4708287A (en) * | 1984-12-24 | 1987-11-24 | Nederlandse Centrale Organisatie Voor Toegepast-Natuurwe-Tenschappelijk Onderzoek | Apparatus for adjusting a central heating installation |
| DE3620929A1 (en) * | 1986-06-23 | 1988-01-07 | Centra Buerkle Gmbh & Co | Method and device for controlling at least one heating installation |
| JPH07217917A (en) * | 1994-01-24 | 1995-08-18 | Tokyo Gas Co Ltd | Central heating/hot water supply system |
| CN201222906Y (en) * | 2008-07-21 | 2009-04-22 | 上海都市绿色工程有限公司 | Intelligent type greenhouse heating apparatus |
| DE102009010493A1 (en) * | 2009-02-25 | 2010-09-02 | Theodor Heimeier Metallwerk Gmbh | Heating system for buildings, is provided with condensing boiler, heating medium pump, heating medium feed pipe, heating medium return line and radiator |
| CN202002214U (en) * | 2011-01-28 | 2011-10-05 | 浙江中新能源发展有限公司 | Back-drainage concentration-individual solar water heating system utilizing water as heating medium |
| CN203012552U (en) * | 2013-01-08 | 2013-06-19 | 宁波康鑫化纤股份有限公司 | Apparatus for controlling temperature stably through heat medium circulation |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114151850A (en) * | 2021-11-19 | 2022-03-08 | 北京航天石化技术装备工程有限公司 | Heating medium system capable of being debugged in a split-ranging manner and debugging method |
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Application publication date: 20130403 |