CN203012552U - Apparatus for controlling temperature stably through heat medium circulation - Google Patents
Apparatus for controlling temperature stably through heat medium circulation Download PDFInfo
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- CN203012552U CN203012552U CN 201320009518 CN201320009518U CN203012552U CN 203012552 U CN203012552 U CN 203012552U CN 201320009518 CN201320009518 CN 201320009518 CN 201320009518 U CN201320009518 U CN 201320009518U CN 203012552 U CN203012552 U CN 203012552U
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- temperature
- heat medium
- heating
- heating agent
- valve
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Abstract
The utility model relates to an apparatus for controlling temperature stably through heat medium circulation, mainly comprising a pneumatic adjusting triple valve, a radiator and a temperature sensor. The triple valve is a one-inlet two-outlet pneumatic adjusting triple valve; the radiator is communicated with the backflow pipe of a heat medium temperature stabilization system passing through a pneumatic adjusting valve through a stop valve; the outlet pipe of the radiator is communicated with the inlet pipe of the heat medium temperature stabilization system and is communicated with the backflow pipe of the pneumatic adjusting valve; the temperature sensor is connected with a PLC controller; and the open degree of the pneumatic adjusting triple valve is controlled by the temperature sensor through the PLC controller in a hand-operated/automatic manner. According to the apparatus for controlling temperature stably through heat medium circulation, when the temperature of high temperature filling heat medium is fluctuated, the temperature fluctuation of the heat medium temperature stabilization system is controlled at the range from - 0.5 DEGs C to + 0.5 DEGs C, and the product quality is prevented from influence caused by the temperature fluctuation of the high temperature filling heat medium.
Description
Technical field
The utility model relates to a kind of device of controlling temperature by the heating agent stable circulation.
Background technology
It is to provide the conductor of heat, the heat medium system of polyester device to comprise primary fluid, secondary heating agent to whole polyester production device that polyester fondant directly spins middle heating agent, and the heating agent of being supplied with whole device by the heating agent station is called primary fluid; In device, distinct device, pipeline have different temperature requirements, 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 330 ℃ of left and right 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), with the compensation heating agent in closed circuit due to thermal expansion or contraction that temperature variation 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 circulation system for, return between 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 complete the heat transmission between primary fluid system and secondary heat medium system.The liquid phase heating agent of discharging when liquid phase heating agent low spot feeder being set in addition being used for the maintenance of collecting device pipeline when the heating agent of certain secondary circuit need to discharge, in first being collected in, then is used 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 control the temperature of reaction, realize different temperature control requirement.The secondary heating agent in each adjustment loop collects 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 is mainly to control by heating agent partial circulating temperature, and the partial circulating temperature is to reach the regulation and control of temperature by the heat dissipation capacity balance that high temperature replenishes heat exchange amount that pneumatic control valve, one-way throttle valve realization realize melt into and out of control and the additional cooler of lesser circulation flow rate of heat medium and heating radiator; This type of temperature control method easily causes the partial circulating temperature to control when the primary fluid temperature fluctuation because the heat dissipation capacity of heating radiator is uncontrollable more difficult, and the general fluctuation of temperature is larger; Because can not in time arrive the aperture of stop valve before the relevant heating 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 increase on partial circulating heating radiator inlet pipe house steward a pneumatic regulating three-way valve and fansink designs be several groups in parallel, the aperture of in time regulating the threeway pneumatic control valve according to the fluctuation situation of primary fluid reaches the purpose of equilibrium temperature.
Summary of the invention
The purpose of this utility model is to provide a kind of device of controlling temperature by the heating agent stable circulation, and primary structure is: described heat medium pipe two ends difference connecting tee pneumatic control valve and heating radiator return pipe; The heating radiator return pipe is connected with the total inlet pipe of heating agent, in the junction of heating radiator return pipe and the total inlet pipe of heating agent, a primary fluid filling tube is arranged, and in high temperature heating agent filling tube, a pneumatic control valve (this pneumatic control valve is controlled by PLC) is arranged; One end of heating radiator one, heating radiator two, heating radiator three, heating 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 heating radiator return pipe respectively; One end of stop valve one, stop valve two, stop valve three, stop valve four connects the heating agent return pipe, heating agent return pipe UNICOM threeway pneumatic valve variable valve; Temperature sensor is arranged on main heating agent return pipe, and advances heat medium pipe UNICOM's temperature sensor and threeway pneumatic control valve with the threeway pneumatic control valve.
A kind of device of controlling temperature by the heating agent stable circulation as above, described temperature sensor is serially connected in the device heating agent and returns on supervisor; Aperture by the manual/auto control threeway of PLC controller pneumatic control valve is controlled the flow that enters heating radiator, thereby controls partial circulating heat medium system heat dissipation capacity.
A kind of device of controlling temperature by the heating agent stable circulation as above, 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; Actuator is controlled the aperture of threeway pneumatic control valve two outlets, and the aperture of threeway pneumatic control valve two outlets is complementary relationship, and total aperture is 100%; If actual temperature is during higher than design temperature, PLC controls the actuator of threeway pneumatic control valve, actuator is controlled the aperture of 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 device, reach the stable of the interior heat medium temperature of device.If actual temperature is during lower than design temperature, PLC controls the actuator of threeway pneumatic control valve, actuator is controlled the aperture of 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 device, reach the stable of the interior heat medium temperature of device.When the radiating effect of heating radiator is better, can close the valve group of wherein partly dispelling the heat.The group number of another heating radiator can increase or reduce actual heat radiation group number on existing basis according to different heat dissipation capacities and reaches different production requirements.
A kind of device of controlling temperature by the heating agent stable circulation of the present utility model, 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 melt cooler partial circulating heat medium temperature used 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, made up the deficiencies in the prior art.
Description of drawings
Fig. 1 is a kind of device schematic diagram of controlling temperature by the heating agent stable circulation of the present utility model
Wherein 1 is that the total inlet pipe 2 of heating agent is high temperature heating agent filling tubes
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 heating radiator return pipes
The 9th, heating agent return pipe 10 is stop valves one
The 11st, stop valve 2 12 is stop valves three
The 13rd, stop valve 4 14 is heating radiators one
The 15th, heating radiator 2 16 is heating radiators three
The 17th, heating radiator 4 18 is pneumatic control valves
Embodiment
Below in conjunction with embodiment, further set forth the utility model.
As shown in Figure 1, be a kind of device of controlling temperature by the heating agent stable circulation of the present utility model, described heat medium pipe 4 two ends difference connecting tee pneumatic control valve 5 and heating radiator return pipes 8; Heating radiator return pipe 8 is connected with the total inlet pipe 1 of heating agent, in the junction of heating radiator return pipe 8 and the total inlet pipe 1 of heating agent, a high temperature heating agent filling tube 2 is arranged, at the original pneumatic control valve 18 of high temperature heating agent filling tube 2; One end of heating radiator 1, heating radiator 2 15, heating radiator 3 16, heating 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 heating 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 valve variable valve 5; Temperature sensor 7 is arranged on main heating agent return pipe 3, and with advancing heat medium pipe 6 UNICOM's temperature sensors 7 and threeway pneumatic valve variable valve 5.
Through evidence, a kind of device of controlling temperature by the heating agent stable circulation of the present utility model, 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 melt cooler partial circulating heat medium temperature used 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, made up the deficiencies in the prior art.
Claims (1)
1. a device of controlling temperature by the heating agent stable circulation, is characterized in that: described heat medium pipe (4) two ends difference connecting tee pneumatic control valve (5) and heating radiator return pipe (8); Heating radiator return pipe (8) is connected with the total inlet pipe of heating agent (1), there is a high temperature heating agent filling tube (2) junction at heating radiator return pipe (8) and the total inlet pipe of heating agent (1), and in high temperature heating agent filling tube (2), a pneumatic control valve (18) is arranged; One end of heating radiator one (14), heating radiator two (15), heating radiator three (16), heating 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 heating 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 arranged on 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 |
|---|---|---|---|
| CN 201320009518 CN203012552U (en) | 2013-01-08 | 2013-01-08 | Apparatus for controlling temperature stably through heat medium circulation |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320009518 CN203012552U (en) | 2013-01-08 | 2013-01-08 | Apparatus for controlling temperature stably through heat medium circulation |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203012552U true CN203012552U (en) | 2013-06-19 |
Family
ID=48604126
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201320009518 Expired - Fee Related CN203012552U (en) | 2013-01-08 | 2013-01-08 | Apparatus for controlling temperature stably through heat medium circulation |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203012552U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103014882A (en) * | 2013-01-08 | 2013-04-03 | 宁波康鑫化纤股份有限公司 | Device for stably controlling temperature by heating medium |
-
2013
- 2013-01-08 CN CN 201320009518 patent/CN203012552U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103014882A (en) * | 2013-01-08 | 2013-04-03 | 宁波康鑫化纤股份有限公司 | Device for stably controlling temperature by heating medium |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130619 Termination date: 20160108 |