CN202401103U - Heat treatment system utilizing liquefied gas as enriched gas - Google Patents
Heat treatment system utilizing liquefied gas as enriched gas Download PDFInfo
- Publication number
- CN202401103U CN202401103U CN2011202851537U CN201120285153U CN202401103U CN 202401103 U CN202401103 U CN 202401103U CN 2011202851537 U CN2011202851537 U CN 2011202851537U CN 201120285153 U CN201120285153 U CN 201120285153U CN 202401103 U CN202401103 U CN 202401103U
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- liquefied gas
- gas
- heat treatment
- atmosphere
- treatment system
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Abstract
The utility model relates to a heat treatment system utilizing liquefied gas as enriched gas, which comprises a heating furnace and is characterized by further comprising a liquefied gas tank; the output end of the liquefied gas tank is connected with a pressure reducing valve; the output end of the pressure reducing valve is connected with a gas supply pipe; the other end of the gas supply pipe is connected with the heating furnace; a flow meter and a solenoid valve are arranged on the gas supply pipe; an atmosphere detection device is arranged in the heating furnace and transmits an atmosphere electrical signal to a control unit through a detection unit circuit; and after analyzing and processing the atmosphere electrical signal, the control unit outputs a control signal to the solenoid valve. The heat treatment system has the benefit that through the adoption of the low-cost liquefied gas, a product of which various quality indexes are within the required standard scope can be obtained, so that the production cost is reduced under the premise of ensuring the product quality.
Description
Technical field
The utility model relates to bearing heat treatment technics field, and especially protective atmosphere quenching technology field specifically is a kind of heat treatment system that utilizes liquefied gas as enriched gas.
Background technology
The HTFX major part that is applied to the bearing heat treatment industry now all is a special atmosphere oven, because it has production efficiency high, quality product is high, the plurality of advantages that apparent mass is excellent.For the modern thermal treatment of popularizing day by day now, some is to implement protective atmosphere to quench, and some is vacuum hardening.With regard to the former easy realization, use history longer, so bigger range of application is arranged.And, a lot of selection kinds is arranged for employed enriched gas in protective atmosphere.Some is to use propane flammable gas, and some is to use acetone, and some is to use methane, and some is to use kerosene or the like a lot, but final unique target is exactly to strive under the cheap clean gas prerequisite of use, still obtaining to conform with the product that thermal treatment quality requires.Use n-formyl sarcolysine alcohol atmosphere to add that in addition propane flammable gas is as the synthetic a kind of high carbon potential protective atmosphere of enriched gas at present in addition.But obtain propane flammable gas and receive a lot of current conditions constraints, very inconvenient.
The utility model content
In order to overcome the shortcoming that above-mentioned prior art exists; The purpose of the utility model is to provide a kind of heat treatment system that utilizes liquefied gas as enriched gas; It adopts cheaply, and liquefied gas can obtain all products in the required standard scope of each item quality; Promptly under the assurance product quality premise, reduce production costs.
In order to address the above problem; The utility model adopts following technical scheme: this utilizes the heat treatment system of liquefied gas as enriched gas, comprises process furnace, also comprises liquid gas storage tank; The output terminal of liquid gas storage tank connects a reducing valve; The output terminal of reducing valve connects air-supply duct, and the other end of air-supply duct is communicated with process furnace, and said air-supply duct is provided with under meter, SV; Be provided with the atmosphere proofing unit in the said process furnace, the atmosphere proofing unit transfers to control unit through detection cell circuit with the atmosphere electrical signal; Said control unit to this atmosphere electrical signal analyzing and processing after to said SV output wave.
Further technical scheme as the utility model:
Utilize in the heat treatment system of liquefied gas as enriched gas at this, said liquid gas storage tank is provided with two at least, and two liquid gas storage tanks are respectively through the described reducing valve of pipe coupling.
Utilize in the heat treatment system of liquefied gas as enriched gas at this, said air-supply duct and the place of connection of process furnace are positioned at the high-temperature zone, middle part of process furnace.
The beneficial effect of the utility model is: its resulting heat treated article each item quality is all in the required standard scope; Compare with other enriched gass especially propane simultaneously, use liquefied gas also to have relatively low cost, the two is basic identical for burning the sooty gap periods, all about 3 each months.Promptly under the prerequisite that guarantees original thermal treatment quality, it is more convenient to obtain liquefied gas, and can reduce production costs.
Description of drawings
Below in conjunction with accompanying drawing and embodiment the utility model is done further explanation:
Fig. 1 is the structural representation of the utility model embodiment;
Among the figure: 1 process furnace, 2 liquid gas storage tanks, 3 reducing valve, 4 air-supply duct, 5 under meters, 6 SVs, 7 atmosphere proofing units, 8 detection cell circuit, 9 control units.
Embodiment
As shown in Figure 1, this utilizes liquefied gas to comprise process furnace 1 as the heat treatment system of enriched gas, also comprises liquid gas storage tank 2, and the output terminal of liquid gas storage tank 2 connects a reducing valve 3, and the output terminal of reducing valve 3 connects air-supply duct 4.The gaseous tension scope that can bear according to equipment and the tolerance of needs in the unit time are selected suitable reducing valve, promptly can satisfy enough pressure and require and can reach enough tolerance requirements.
The other end of air-supply duct 4 is communicated with process furnace 1, and said air-supply duct 4 is provided with under meter 5, SV 6, is provided with atmosphere proofing unit 7 in the said process furnace 1, and atmosphere proofing unit 7 transfers to control unit 9 through detection cell circuit 8 with the atmosphere electrical signal; After 9 pairs of these atmosphere electrical signal analyzing and processing of said control unit said SV 6 is exported waves.
Oxygen gesture in atmosphere proofing unit 7 detection process furnace 1; And this atmosphere electrical signal transferred to control unit 9; 9 pairs of these atmosphere electrical signal analyzing and processing of control unit draw and output control signals to SV 6 when oxygen gesture in the process furnace reaches the higher limit of setting it is closed automatically, the supply of stop solution gasification.Otherwise when the oxygen gesture reached the lower value of set(ting)value in the stove, control unit 9 output control signals to SV 6 and makes its automatic unlatching, in process furnace 1, charged into liquefied gas and improved the oxygen gesture value in the stove.With regard to not producing carbon potential situation out of control, reduce the consumption of liquefied gas simultaneously like this because charging into too many liquefied gas.It is excessive and cause carbon potential too high and produce carbon black also to avoid once charging into liquefied gas.
Said air-supply duct 4 and the place of connection of process furnace 1 are positioned at the high-temperature zone, middle part of process furnace 1.After low-temperature decomposition, produce carbon black for fear of liquefied gas, the high-temperature zone that only is chosen in process furnace 1 feeds liquefied gas.Can reduce the possibility of liquefied gas greatly like this, reduce the sooty influence in low-temperature decomposition.
Said liquid gas storage tank 2 is provided with two at least, and two liquid gas storage tanks are respectively through the described reducing valve 3 of pipe coupling.
Adopt two liquid gas storage tanks air feed simultaneously; So both guaranteed the gas production rate of unit time; Liquid is in a kind of process relatively more slowly in the process of vaporization; Can reduce the fluctuation of gas flow like this, can make tank body from environment, have the relatively long time to absorb heat in addition and remedy the heat that consumes because of vaporization.Final result is that liquefied gas can vaporize and be fed in the process furnace fast, efficiently and stably.
In addition, minimumly use two liquid gas storage tanks simultaneously, so as when last jar of gas to be finished using changing one by one, can accomplish the glitch-free switching of free of discontinuities, avoid continuous production to be affected.
Claims (3)
1. a heat treatment system that utilizes liquefied gas as enriched gas comprises process furnace, it is characterized in that: also comprise liquid gas storage tank; The output terminal of liquid gas storage tank connects a reducing valve; The output terminal of reducing valve connects air-supply duct, and the other end of air-supply duct is communicated with process furnace, and said air-supply duct is provided with under meter, SV; Be provided with the atmosphere proofing unit in the said process furnace, the atmosphere proofing unit transfers to control unit through detection cell circuit with the atmosphere electrical signal; Said control unit to this atmosphere electrical signal analyzing and processing after to said SV output wave.
2. a kind of heat treatment system that utilizes liquefied gas as enriched gas according to claim 1, it is characterized in that: said liquid gas storage tank is provided with two at least, and two liquid gas storage tanks are respectively through the described reducing valve of pipe coupling.
3. a kind of heat treatment system that utilizes liquefied gas as enriched gas according to claim 1 and 2 is characterized in that: said air-supply duct and the place of connection of process furnace are positioned at the high-temperature zone, middle part of process furnace.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011202851537U CN202401103U (en) | 2011-08-08 | 2011-08-08 | Heat treatment system utilizing liquefied gas as enriched gas |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011202851537U CN202401103U (en) | 2011-08-08 | 2011-08-08 | Heat treatment system utilizing liquefied gas as enriched gas |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202401103U true CN202401103U (en) | 2012-08-29 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011202851537U Expired - Lifetime CN202401103U (en) | 2011-08-08 | 2011-08-08 | Heat treatment system utilizing liquefied gas as enriched gas |
Country Status (1)
| Country | Link |
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| CN (1) | CN202401103U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114413164A (en) * | 2021-11-30 | 2022-04-29 | 玉环景和机械有限公司 | Pressure-reducing leakage-proof liquefied gas tank |
-
2011
- 2011-08-08 CN CN2011202851537U patent/CN202401103U/en not_active Expired - Lifetime
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114413164A (en) * | 2021-11-30 | 2022-04-29 | 玉环景和机械有限公司 | Pressure-reducing leakage-proof liquefied gas tank |
| CN114413164B (en) * | 2021-11-30 | 2023-11-10 | 内蒙古汇能煤化工有限公司 | Pressure-reducing leakage-proof liquefied gas tank |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20120829 |
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| CX01 | Expiry of patent term |