CN203049018U - Energy-saving nitriding furnace device - Google Patents
Energy-saving nitriding furnace device Download PDFInfo
- Publication number
- CN203049018U CN203049018U CN 201220729858 CN201220729858U CN203049018U CN 203049018 U CN203049018 U CN 203049018U CN 201220729858 CN201220729858 CN 201220729858 CN 201220729858 U CN201220729858 U CN 201220729858U CN 203049018 U CN203049018 U CN 203049018U
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- furnace
- nitriding
- energy
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- heater
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Abstract
The utility model provides an energy-saving nitriding furnace device which belongs to the machining field. The energy-saving nitriding furnace device comprises furnace bodies, air inlet valves, lock catches, furnace covers, flying rings, air bleeding valves, a vacuum valve, a vacuum pump and an air pipe, wherein the two furnace bodies are arranged side by side, and one half of each furnace body is embedded under the ground; the two furnace bodies are connected through an air pipe, the air bleeding valves are respectively arranged on the two ends of the air pipe, the air pipe between the furnace bodies is of a tee-joint structure, and the vacuum valve and the vacuum pump are arranged on a middle branch; and air inlet pipes are arranged on the other sides of the furnace bodies, and the air inlet valves are arranged on the air inlet pipes; the furnace covers are arranged on the furnace bodies through the lock catches; and the flying rings are arranged above the furnace covers. As a time-sharing nitriding manner is adopted by two furnaces, when one of the two furnaces is used for nitriding, the other one is in awaiting time, when the nitriding in one of the two furnace is ended, the air bleeding valves in the middle are opened, and NH3 not used up is conveyed to the other furnace in which the nitriding is not started, in addition, a part of heat is also taken to the furnace in which the nitriding is not started. The energy-saving nitriding furnace device has the characteristics of high utilization rate of NH3 and energy saving.
Description
Technical field
The utility model relates to a kind of nitriding furnace, and especially a kind of energy-conservation nitriding furnace apparatus belongs to field of machining.
Background technology
Nitriding treatment refers to make nitrogen-atoms infiltrate the chemical heat treatment process of workpiece surface in a kind of certain medium at a certain temperature.The goods that via nitride is handled have excellent abrasive, resistance to fatigue, solidity to corrosion and resistant to elevated temperatures characteristic.Gas nitriding lies in nineteen twenty-three and is delivered by fritz Fry, workpiece is placed in the stove, sharp NH3 gas directly is input in 500～550 ℃ the nitriding furnace, kept 20～100 hours, make NH3 gas be decomposed into (N) gas of atomic condition and carry out nitriding with (H) gas and handle, producing wear-resisting, corrosion-resistant compound layer on the surface that makes steel is main purpose, and its thickness is about 0.02～0.2mm, its character is extremely hard, and Hv 1000～1200.Yet the utilization ratio of existing nitriding furnace apparatus NH3 is lower, and after nitrogenize finished, the NH3 that major part has not been utilized drained as waste gas.Therefore, need a kind of nitriding furnace apparatus head it off.
Summary of the invention
The purpose of this utility model provides a kind of energy-conservation nitriding furnace apparatus.
Problem to be solved in the utility model is the existing low defective of nitriding furnace NH3 utilization ratio.
For realizing the purpose of this utility model, the technical solution adopted in the utility model is:
The energy-conservation nitriding furnace apparatus of the utility model comprises body of heater, intake valve, snap close, bell, suspension ring, vent valve, vacuum valve, vacuum pump and tracheae, and body of heater is two, and two bodies of heater are installed side by side, and wherein half imbeds underground; Two bodies of heater are connected by a tracheae, and the tracheae two ends are respectively equipped with vent valve, and the tracheae between two bodies of heater is three-port structure, and vacuum valve and vacuum pump are housed on the middle branch; The other side of body of heater is provided with the air inlet tracheae, is provided with intake valve at tracheae; Bell is installed on the body of heater by snap close, and the bell top is provided with suspension ring.Also be provided with snap close on the bell.
Two nitriding furnaces all are to adopt the Electric heating heating.Intake valve, vent valve, vacuum valve are magnetic valve.Whole device is by the control of PLC system.
The utility model has the advantages that: two stoves adopt timesharing nitrogenize mode, and when a stove carried out the nitrogenize operation, the another one stove was the waiting time.When a stove nitrogenize finished, two vent valves in the middle of opening were transported to the NH3 that has not utilized in the stove that does not also begin nitrogenize, and then suitably replenished NH3 by the air inlet tracheae and carry out the nitrogenize operation.Stove by two connections carries out the nitrogenize operation and can save a part of NH3, in addition a part of heat has also been taken in the stove that does not begin nitrogenize.Therefore, the utlity model has NH3 utilization ratio height and characteristics of energy saving.
Description of drawings
Fig. 1 is the structural representation of the energy-conservation nitriding furnace apparatus of the utility model;
Among the figure: 1, body of heater 2, intake valve 3, snap close 4, bell 5, suspension ring 6, vent valve 7, vacuum valve 8, vacuum pump 9, tracheae.
Embodiment
Below in conjunction with drawings and Examples the utility model is further described.
As shown in the figure, the energy-conservation nitriding furnace apparatus of the utility model comprises that body of heater 1, intake valve 2, snap close 3, bell 4, suspension ring 5, vent valve 6, vacuum valve 7, vacuum pump 8 and 9, two bodies of heater 1 of tracheae install side by side, and wherein half imbeds underground; Two bodies of heater 1 are connected by a tracheae 9, and the tracheae 9 that tracheae 9 two ends are respectively equipped with between 6, two bodies of heater 1 of vent valve is three-port structure, and vacuum valve 7 and vacuum pump 8 are housed on the middle branch, the gas in the body of heater 1 can be found time by vacuum pump 8; Body of heater 1 an other side is provided with air inlet tracheae 9, is provided with intake valve 2 at tracheae 9, and NH3 enters in the body of heater 1 by air inlet tracheae 9; Bell 4 is installed on the body of heater 1 by snap close 3, and bell 4 tops are provided with suspension ring 5, can load and unload bell 4 rapidly by the snap close 3 on the bell 4 and suspension ring 5.
Two nitriding furnaces all are to adopt the Electric heating heating.Intake valve 2, vent valve 6, vacuum valve 7 are magnetic valve.Whole device is by the control of PLC system.
The utility model using method is at first opened the bell 4 of two stoves, and the workpiece that will handle is packed in two bodies of heater 1, covers bell 4, by snap close 3 lockings.Open the vent valve 6 of two stoves, open vacuum valve 7, start vacuum pump 8, the gas in two stoves is found time, close the vent valve 6 of two stoves after exhausting, close vacuum valve 7 and vacuum pump 8.Open the intake valve 2 of a stove, stove is filled NH3 work, charge NH3 and close intake valve 2, nitriding treatment is carried out in the electrically heated that starts this stove then.When this stove nitrogenize finishes, the inner NH3 that has not utilized in addition of stove, the vent valve 6 of two stoves is opened, the NH3 that the tracheae 9 that links to each other by the centre will partly not utilize is transported in the stove that does not begin nitrogenize, open the intake valve 2 that does not begin the nitrogenize stove then, suitable additional NH3 begins the nitrogenize operation of second stove.The intact work-piece cools such as stove of nitrogenize before reload new workpiece after taking out, and extract the air in the stove out, wait for that the stove nitrogenize on next door finishes, and can utilize the not intact NH3 of nitrogenize of next door stove again.So repeat to save greatly the usage quantity of NH3, improved the service efficiency of NH3, simultaneously a part of heat has also been taken in the stove that does not begin nitrogenize, play energy-conservation effect.
Claims (3)
1. energy-conservation nitriding furnace apparatus, comprise body of heater (1), intake valve (2), snap close (3), bell (4), suspension ring (5), vent valve (6), vacuum valve (7), vacuum pump (8) and tracheae (9), it is characterized in that: two bodies of heater (1) are installed side by side, and wherein half imbeds underground; Tracheae (9) two ends between two bodies of heater (1) are respectively equipped with vent valve (6), and the tracheae (9) between two bodies of heater (1) is three-port structure, and vacuum valve (7) and vacuum pump (8) are housed on the middle branch; The other side of body of heater (1) is provided with air inlet tracheae (9), is provided with intake valve (2) at tracheae (9); Bell (4) is installed on the body of heater (1) by snap close (3), and bell (4) top is provided with suspension ring (5).
2. energy-conservation nitriding furnace apparatus according to claim 1, it is characterized in that: described body of heater (1) is two, middlely is connected with tracheae (9).
3. energy-conservation nitriding furnace apparatus according to claim 1, it is characterized in that: described bell (4) is provided with snap close (3).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220729858 CN203049018U (en) | 2012-12-27 | 2012-12-27 | Energy-saving nitriding furnace device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220729858 CN203049018U (en) | 2012-12-27 | 2012-12-27 | Energy-saving nitriding furnace device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203049018U true CN203049018U (en) | 2013-07-10 |
Family
ID=48731995
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220729858 Expired - Fee Related CN203049018U (en) | 2012-12-27 | 2012-12-27 | Energy-saving nitriding furnace device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203049018U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104294207A (en) * | 2014-10-18 | 2015-01-21 | 江苏江南铁合金有限公司 | Nitriding furnace system |
-
2012
- 2012-12-27 CN CN 201220729858 patent/CN203049018U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104294207A (en) * | 2014-10-18 | 2015-01-21 | 江苏江南铁合金有限公司 | Nitriding furnace system |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130710 Termination date: 20131227 |