CN103949583B - Hot air apparatus control system - Google Patents
Hot air apparatus control system Download PDFInfo
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- CN103949583B CN103949583B CN201410162244.XA CN201410162244A CN103949583B CN 103949583 B CN103949583 B CN 103949583B CN 201410162244 A CN201410162244 A CN 201410162244A CN 103949583 B CN103949583 B CN 103949583B
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- temperature
- cryotronl
- hot air
- gas flow
- flow tube
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- BGOFCVIGEYGEOF-UJPOAAIJSA-N helicin Chemical compound O[C@@H]1[C@@H](O)[C@H](O)[C@@H](CO)O[C@H]1OC1=CC=CC=C1C=O BGOFCVIGEYGEOF-UJPOAAIJSA-N 0.000 claims abstract description 4
- 239000004576 sand Substances 0.000 claims abstract description 4
- 239000007789 gas Substances 0.000 claims description 25
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical group C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 claims description 14
- 238000002485 combustion reaction Methods 0.000 claims description 7
- 239000003345 natural gas Substances 0.000 claims description 7
- 230000005611 electricity Effects 0.000 claims description 3
- 230000000694 effects Effects 0.000 abstract description 3
- 238000009423 ventilation Methods 0.000 abstract description 2
- 238000010438 heat treatment Methods 0.000 description 14
- 238000004519 manufacturing process Methods 0.000 description 4
- 238000009835 boiling Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 239000003110 molding sand Substances 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 1
- 239000002737 fuel gas Substances 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 230000007246 mechanism Effects 0.000 description 1
- 238000007493 shaping process Methods 0.000 description 1
- 230000008646 thermal stress Effects 0.000 description 1
Landscapes
- Filling Or Discharging Of Gas Storage Vessels (AREA)
- Fluidized-Bed Combustion And Resonant Combustion (AREA)
Abstract
The invention belongs to control the technical field of gas supply temperature, hot air apparatus control system, it is arranged on hot air apparatus, this hot air apparatus includes cabinet, combustor and spiral helicine gas flow tube it is provided with in cabinet, the wind outlet section of this gas flow tube and hot box to penetrate sand mouth relative, high-temperature pipe in parallel and cryotronl it is provided with between the wind inlet section of described gas flow tube and compressed air source, total stop valve it is provided with between compressed air source and high-temperature pipe or cryotronl, high-temperature pipe is provided with high temperature break valve, cryotronl is provided with cryogenic globe valve, the caliber of described high-temperature pipe is more than the caliber of cryotronl.Stop valve in the present invention provides only simple cut-out and unlatching effect, is hardly damaged, and damages so long as not high-temperature pipe or cryotronl simultaneously, still has a paths to can be carried out ventilation in the case of not suspending hot air apparatus.Comparing the regulation of costliness the most flimsy air-flow, the present invention pipeline switching regulation output temperature by different tube diameters, cost is cheaper, more easy-maintaining.
Description
Technical field
The invention belongs to control the technical field of gas supply temperature.
Background technology
Traditional hot-box core making process is by mean of core shooter, by mixed molding sand with certain pressure (usually 0.3～0.5MPa), it is injected in the core box of heating-up temperature 180～260 DEG C, rely on the conduction of heat of the mould with uniform temperature and the core contact surface core surface in core box the most gradually to heat up core manufacturing craft that shaping hardens.Hot box is made up of parts such as core box body, loose piece, positioner, heater, exhaust apparatus, ejecting mechanisms, hot box heating has electrical heating and fuel gas heating two ways, but in actual production, electrical heating application is the most universal, its feature be heat uniformly, heat up steadily, but heating element heater programming rate is relatively slow, power consumption is big and heating element heater installation can affect the layout of core ejecting device and exhaust apparatus.Conventional electric heater unit has general heating plate and a Special heater two kinds, and wherein Special heater is electrical heating elements to be directly installed on hot box this is the most internal, mixes connection wire and temperature measuring equipment, it is not necessary to additionally arrange heating plate.
nullThe mode adding heat pipe is buried underground in mould，May result in mould hot-spot，Even heat cannot be delivered in the molding sand in mould，If using electric boiling plate, it is likely to because thermal stress causes gap between electric boiling plate and core box to increase，Affect heat-transfer effect and mould precision，Also add heat pipe to dismounting and increase difficulty，Occur in that a kind of hot air apparatus using homogeneous heating the most at present，The high temperature air of more than 200 DEG C can be passed through in core box，This hot air apparatus includes compressed air source、Gas flow tube and combustor，Barometric damper it is provided with in gas flow tube，Its shortcoming is: one is the relatively costly of barometric damper，Two is that draught damper is easily damaged，Need during maintenance to suspend hot air apparatus，Production loss can be caused，Three is that hot air apparatus has only to provide the hot-air higher than 200 DEG C，Less demanding to the precision of temperature，If using barometric damper regulation temperature, can seem " wasting one's talent on a petty job ".
Summary of the invention
The invention is intended to provide a kind of with low cost, do not result in the hot air apparatus control system of production loss when being hardly damaged and keep in repair.
The purpose of the present invention can be reached by following measures: hot air apparatus control system, it is arranged on hot air apparatus, this hot air apparatus includes cabinet, combustor and spiral helicine gas flow tube it is provided with in cabinet, the wind outlet section of this gas flow tube and hot box to penetrate sand mouth relative, gas flow tube and combustor are respectively positioned in adiabatic environment, high-temperature pipe in parallel and cryotronl it is provided with between the wind inlet section of described gas flow tube and compressed air source, total stop valve it is provided with between compressed air source and high-temperature pipe or cryotronl, high-temperature pipe is provided with high temperature break valve, cryotronl is provided with cryogenic globe valve, the caliber of described high-temperature pipe is more than the caliber of cryotronl.
Technique scheme difference with the prior art is: arrange high-temperature pipe in parallel and cryotronl between gas flow tube wind inlet section and compressed air source, and the caliber of high-temperature pipe is more than the caliber of cryotronl, when compressed air inputs from compressed air source with identical speed, in the identical time, the air of high-temperature pipe is greater than the air of cryotronl for amount for amount, when using high-temperature pipe, air velocity in gas flow tube is slower, air is by the abundant heating of combustor, temperature significantly raises, higher from wind outlet section air themperature out, when using cryotronl, air velocity in gas flow tube is fast, air is not affected by the abundant heating of combustor, the amplitude that temperature raises is unable to catch up with high-temperature pipe air temperature increasing degree, relatively low from outlet air end air themperature out.Therefore, it can between high-temperature pipe and cryotronl, switch compressed-air actuated path, thus regulate the output temperature of the air of output.Stop valve in the present invention provides only simple cut-out and unlatching effect, is hardly damaged, and damages so long as not high-temperature pipe or cryotronl simultaneously, still has a paths to can be carried out ventilation in the case of not suspending hot air apparatus.Comparing the regulation of costliness the most flimsy air-flow, the present invention pipeline switching regulation output temperature by different tube diameters, cost is cheaper, more easy-maintaining.
Further, the wind outlet section inwall of described gas flow tube is provided with temperature sensor, this temperature sensor and the temperature indicator Electricity Federation on cabinet, can observe air output temperature intuitively, thus use high-temperature pipe or cryotronl to carry out temperature regulation as required.
Further, described combustor is natural gas combustion engine, environment friendly and pollution-free.
Accompanying drawing explanation
The present invention is further detailed explanation with detailed description of the invention below in conjunction with the accompanying drawings:
Fig. 1 is the structural representation of hot air apparatus control system embodiment of the present invention.
Detailed description of the invention
As shown in Figure 1: hot air apparatus control system, it is arranged on hot air apparatus, this hot air apparatus includes the cabinet 1 with temperature indicator, natural gas combustion engine 2 and spiral helicine gas flow tube 3 are installed in cabinet 1, the bocca of natural gas combustion engine 2 is relative with gas flow tube 3, the wind inlet section of this gas flow tube 3 and wind outlet section stretch out outside cabinet 1, and natural gas combustion engine 2 and gas flow tube 3 are respectively positioned in adiabatic environment and use air pump 10 as compressed air source in the present embodiment.
High-temperature pipe 4 in parallel and cryotronl 6 are installed between the wind inlet section of gas flow tube 3 with air pump 10.Being provided with total stop valve 8 between air pump 10 and high-temperature pipe 4 or cryotronl 6, high-temperature pipe 4 is provided with high temperature break valve 5, and cryotronl 6 is provided with cryogenic globe valve 7, and the caliber of described high-temperature pipe 4 is more than the caliber of cryotronl 6.
The wind outlet section of gas flow tube 3 and hot box to penetrate sand mouth relative, high temperature air can be blown in hot box.This wind outlet section inwall is provided with temperature sensor 9, this temperature sensor 9 and the temperature indicator Electricity Federation on cabinet 1.
High-temperature pipe 4 in parallel and cryotronl 6 are set between gas flow tube 3 wind inlet section and air pump 10, and the caliber of high-temperature pipe 4 is more than the caliber of cryotronl 6, when compressed air inputs from air pump 10 with identical speed, in the identical time, the air of high-temperature pipe 4 is greater than the air of cryotronl 6 for amount for amount, when using high-temperature pipe 4, air velocity in gas flow tube 3 is slower, air is by the abundant heating of natural gas combustion engine 2, temperature significantly raises, higher from wind outlet section air themperature out, when using cryotronl 6, air velocity in gas flow tube 3 is fast, air is not affected by the abundant heating of natural gas combustion engine 2, the amplitude that temperature raises is unable to catch up with high-temperature pipe 4 air temperature increasing degree, relatively low from outlet air end air themperature out.Therefore, it can between high-temperature pipe 4 and cryotronl 6, switch compressed-air actuated path, thus regulate the output temperature of the air of output.
The foregoing is only the detailed description of present pre-ferred embodiments, be not used for limiting the present invention, the embodiment of the similar change that all creation spirit under this invention are made, all should be contained among the present invention.
Claims (3)
1. hot air apparatus control system, it is arranged on hot air apparatus, this hot air apparatus includes cabinet, combustor and spiral helicine gas flow tube it is provided with in cabinet, the wind outlet section of this gas flow tube and hot box to penetrate sand mouth relative, gas flow tube and combustor are respectively positioned in adiabatic environment, it is characterized in that: between the wind inlet section of described gas flow tube and compressed air source, be provided with high-temperature pipe in parallel and cryotronl, total stop valve it is provided with between compressed air source and high-temperature pipe or cryotronl, high-temperature pipe is provided with high temperature break valve, cryotronl is provided with cryogenic globe valve, the caliber of described high-temperature pipe is more than the caliber of cryotronl.
Hot air apparatus control system the most according to claim 1, it is characterised in that: the wind outlet section inwall of described gas flow tube is provided with temperature sensor, this temperature sensor and the temperature indicator Electricity Federation on cabinet.
Hot air apparatus control system the most according to claim 1, it is characterised in that: described combustor is natural gas combustion engine.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410162244.XA CN103949583B (en) | 2014-04-22 | 2014-04-22 | Hot air apparatus control system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410162244.XA CN103949583B (en) | 2014-04-22 | 2014-04-22 | Hot air apparatus control system |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103949583A CN103949583A (en) | 2014-07-30 |
| CN103949583B true CN103949583B (en) | 2016-08-17 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410162244.XA Active CN103949583B (en) | 2014-04-22 | 2014-04-22 | Hot air apparatus control system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN103949583B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109990648A (en) * | 2017-12-29 | 2019-07-09 | 上汽通用五菱汽车股份有限公司 | A temperature control heat exchanger |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1119565A (en) * | 1994-09-26 | 1996-04-03 | 何建平 | Casting sodium silicate sand mould hardening new technology and air supply controller |
| EP0881014A1 (en) * | 1997-05-27 | 1998-12-02 | Lüber GmbH | Apparatus for hardening sand cores |
| US5887639A (en) * | 1995-10-27 | 1999-03-30 | Sintokogio, Ltd. | Method and apparatus for manufacturing gas-hardened molds |
| CN203817274U (en) * | 2014-04-22 | 2014-09-10 | 重庆长江造型材料（集团）股份有限公司 | Hot air device control system |
-
2014
- 2014-04-22 CN CN201410162244.XA patent/CN103949583B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1119565A (en) * | 1994-09-26 | 1996-04-03 | 何建平 | Casting sodium silicate sand mould hardening new technology and air supply controller |
| US5887639A (en) * | 1995-10-27 | 1999-03-30 | Sintokogio, Ltd. | Method and apparatus for manufacturing gas-hardened molds |
| EP0881014A1 (en) * | 1997-05-27 | 1998-12-02 | Lüber GmbH | Apparatus for hardening sand cores |
| CN203817274U (en) * | 2014-04-22 | 2014-09-10 | 重庆长江造型材料（集团）股份有限公司 | Hot air device control system |
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| Publication number | Publication date |
|---|---|
| CN103949583A (en) | 2014-07-30 |
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| C14 | Grant of patent or utility model | ||
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Address after: 400709 No. 6 Wuxing Middle Road, Tongjiaxi Town, Beibei District, Chongqing Patentee after: Chongqing Changjiang moulding material (Group) Limited by Share Ltd Address before: 400 000 Wuxing Road, Tongjiaxi Town, Beibei District, Chongqing Patentee before: Chongqing Changjiang moulding material (Group) Limited by Share Ltd |