CN201628481U - Gas preheating device of electronic component firing furnace - Google Patents
Gas preheating device of electronic component firing furnace Download PDFInfo
- Publication number
- CN201628481U CN201628481U CN2010201242166U CN201020124216U CN201628481U CN 201628481 U CN201628481 U CN 201628481U CN 2010201242166 U CN2010201242166 U CN 2010201242166U CN 201020124216 U CN201020124216 U CN 201020124216U CN 201628481 U CN201628481 U CN 201628481U
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- electronic component
- gas
- gas preheating
- heating chamber
- preheating unit
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Abstract
The utility model relates to a gas preheating device of an electronic component firing furnace, belonging to the technical field of an ancillary facility of an electronic product sintering furnace. The gas preheating device comprises a horizontal cylinder body, a group of heating elements, a humidified gas lead-in joint and a damp and hot gas lead-out joint, wherein the horizontal cylinder body is provided with a heating cavity; the left end of the cylinder body is a closed end which is provided with a diversion cavity by the separation of a diversion plate; the diversion cavity is communicated with the heating cavity; the right end of the cylinder body is an opening end which is provided with a sealing cover in a matching way; the group of heating elements are arranged inside the heating cavity and fixed with the sealing cover; the humidified gas lead-in joint is fixed with the left end of the cylinder body and communicated with the diversion cavity; and the damp and hot gas lead-out joint is fixed with the right end of the cylinder body and communicated with the heating cavity. The gas preheating device of the electronic component firing furnace saves the manufacturing cost, reduces the manufacturing difficulty, saves the manufacturing material, is beneficial to saving energy, and embodies the use convenience and economic low price.
Description
Technical field
The utility model belongs to the auxiliary facility technical field of electronic product sintering kiln, is specifically related to a kind of gas preheating unit of electronic component burning furnace, is used for air furnace and atmosphere furnace such as required gas preheatings such as nitrogen furnace, argon gas stove and bell jar stove.
Background technology
As the industry's knowledge of the reason, be used for being equipped with gas preheater usually on the kiln to the product sintering of electronic product such as multiple-layer sheet ceramic capacitor and so on, be preheating to default temperature by the gas of gas preheater after and send into burner hearth again humidification utensil such as humidification tube humidification.
China utility model patent ZL200520077706.4 discloses the gas preheater (being proposed by the applicant) that a kind of bell jar stove is used, this patent scheme has the alleged strong point of Instructions Page 2 the 3rd row for traditional gas preheating unit, concrete structure is by the 1st page of capable record of 19-24 of specification, and operation principle is by Instructions Page 2 the 26th to 29 row record.Make a general survey of the structure and the operation principle of this patent and can find that just there is following shortcoming in this patented technology scheme: the one, there is the phenomenon of attending to one thing and lose sight of another, so-called Gu this, be and concentrate the single bulky preheating device in the prior art preheating to be decomposed into by one group of independent preheating of preheating device that volume is less, can dwindle the volume of preheating device, give the installation of production scene provide convenience and the inspection replacement cost low, and so-called mistake that, be since the preheating device of each unit by housing, heating element heater and outfit thermocouple and valve etc., therefore manufacturing cost is big, and the set-up time is long; The 2nd, disperse the thermal efficiency of preheating can not reach the technique effect that people get the phase; The 3rd, it is big to manage and protect workload, owing to be equipped with one group of preheating device to body of heater, and therefore in daily use, must an inspection of not carrying out timing or not timing with leaking; Four are to use the cost height, and for example because the thermocouple of each preheating device needs regularly by technical supervision department (also claiming metering testing agency) metering test, so the censorship expense that applying unit spent is big.
In view of the existing shortcoming of above-mentioned patent, be necessary to continue to improve, technical scheme described below produces under this background.
Summary of the invention
Task of the present utility model is to provide a kind of and helps simplified structure and use and embody to save manufacturing cost and reduce manufacture difficulty, help to obtain desirable pre-heat effect and use the embodiment energy savings, be of value to reducing and manage and protect workload and use cost and use the gas preheating unit that embodies easy to use and economic electronic component burning furnace.
Task of the present utility model is finished like this, a kind of gas preheating unit of electronic component burning furnace, comprise a horizontally-arranged cylindrical shell with heating chamber, the left end of this cylindrical shell is a blind end, and shunt the chamber by flow distribution plate every being provided with one at this blind end, the shunting chamber communicates with described heating chamber, and the right-hand member of cylindrical shell is an opening end, and is equipped with a seal cover at this opening end; One group of heating element heater probes in the described heating chamber, and fixes with described seal cover; One is used for that the gas behind the humidification is introduced described heating chamber introduces joint for the humidified gases of described heating element heater heating, fixes with the left end of cylindrical shell, and communicates with described shunting chamber; One is used for the hot and humid gas that the gas by after the heating of described heating element heater with described heating chamber causes firing furnace draws joint, fixes with the cylindrical shell right-hand member, and communicates with heating chamber.
In a specific embodiment of the present utility model, described cylindrical shell is provided with a thermocouple of temperature that is used for predicting the hot and humid gas of described heating chamber.
In another specific embodiment of the present utility model, described cylindrical shell is provided with heat-insulation layer.
In another specific embodiment of the present utility model, the spaced apart tap hole that is provided with on the described flow distribution plate, tap hole communicates with described shunting chamber and with described heating chamber.
In another specific embodiment of the present utility model, be equipped with a protective cover on the described seal cover, the sidepiece of this protective cover is extended with a lead inlet tube.
Also have in the specific embodiment of the present utility model, be formed with radiating fin on the outer wall of described heating element heater.
More of the present utility model and in specific embodiment, described heating element heater is crooked electric heating tube.
In of the present utility model and then specific embodiment, describedly be bent into the U-shaped bending.
Of the present utility model again more and in specific embodiment, described humidified gases is introduced joint and connected a three-way connection.
In again of the present utility model and then specific embodiment, in the described heating chamber and be positioned on the corresponding cavity wall at middle part of length direction of heating chamber and respectively be installed with one group of support bar holder, on the support bar holder that respectively corresponds to each other, be provided with support bar.
The technical scheme that the utility model provides is because a plurality of preheating devices of employing that become in the prior art are that single assembly is carried hot and humid gas to firing furnace into firing furnace provides hot and humid gas, thereby has aggregation degree height, simple in structure and saved manufacturing cost and manufacture difficulty and save manufactured materials; Owing to one group of heating element heater is located in the heating chamber together, thereby has been reduced hot transmission loss, can obtain desirable pre-(adding) thermal effect, help energy savings; Reduce to manage and protect workload and use cost to practical application, thereby embodied the convenience of use and cheapness economically.
Description of drawings
Accompanying drawing is a specific embodiment structure chart of the present utility model.
The specific embodiment
For the auditor that the makes Patent Office especially public can be expressly understood technical spirit of the present utility model and beneficial effect more, the applicant general elaborates in conjunction with the accompanying drawings in the mode of embodiment below, but to the description of embodiment all is not restriction to the utility model scheme, any according to the utility model design done only for pro forma but not substantial equivalent transformation all should be considered as the technical solution of the utility model category.
See also accompanying drawing, provided a cylindrical shell 1 cylindraceous, being example by location status shown in the drawings at present, cylindrical shell 1 is horizontally-arranged under user mode, the left end of this cylindrical shell 1 seals, and shunt chamber 12 by flow distribution plate 121 separations or title every being provided with one at this blind end, the spaced apart tap hole 1211 that is provided with on flow distribution plate 121, the self-evident effect of tap hole 1211 is the heating chambers 11 that connect shunting chamber 12 and cylindrical shell 1, and the humidified gases behind the humidification in the shunting chamber 12 can be introduced in the heating chamber 11 equably.The right-hand member of cylindrical shell 1 then is uncovered, the spaced apart seal cover fixing screw hole 16 that is provided with on the end face of opening end, one seal cover 13 has an adapting flange limit 132, and adapting flange limit 132 usefulness flange hold-down screws 1321 are fixed with aforesaid seal cover fixing screw hole 16.For seal cover 13 can fully be sealed heating chamber 11, therefore on adapting flange limit 132, add sealing ring 1322.In addition, promptly be fixed with a protective cover 131, also be extended with a lead inlet tube 1311 at the sidepiece of protective cover 131 back to a side of cylindrical shell 1 in seal cover 13 side outward.
Continue to see accompanying drawing,, on cylindrical shell 1, be coated with heat-insulation layer 15 in order to prevent hot slippages; In order to predict the temperature in the heating chamber 11, cylindrical shell 1 is provided with a thermocouple 14, and the temperature-sensitive head of thermocouple 14 is insinuated in the heating chamber 11; In order to strengthen the intensity of cylindrical shell 1, and main is flexural deformation for fear of tediously long heating element heater 2, on the corresponding cavity wall at the middle part of the length direction of heating chamber 11, respectively set firmly one group of support bar holder 111 that quantity is not illustrated restriction, on the corresponding pair of support rods holder 111 that respectively faces each other support bar 1111 (also can claim cross bar) is set, the front end of each heating element heater 2 is corresponding between the adjacent support bar 1111.
The heating element heater 2 that one group of quantity is not subjected to illustrating restriction is placed in the heating chamber 11, the end of each heating element heater 2 adds insulating blanked clamper sleeve pipe 22, and the spacer pipe 22 that will insulate is inserted in the heating element heater fixing hole 133 that is opened on the seal cover 13, the end of each heating element heater 2 leans out heating element heater fixing hole 133, and it is fixing with nut 23, and then also protect by aforesaid protective cover 131 covers, the lead of introducing from aforesaid lead inlet tube 1311 (power line) is electrically connected with heating element heater 2, hence one can see that, heating element heater 2 is an electrical heating elements, its preferred curved shape as shown is the U-shaped bending, and has continuous and spiral radiating fin 21 on the outer wall of heating element heater 2.When the arbitrary or several heating element heater 2 in one group of heating element heater 2 causes damage, as long as after cutting off the electricity supply, revolve and open protective cover hold-down screw 1312, and whiz flange hold-down screw 1321, make seal cover 13 take one group of heating element heater 2 and shift out heating chamber 11, revolve corresponding nut 23 again, the heating element heater 2 that damages is changed.
Still see accompanying drawing, connect a humidified gases on the top of the left end end face of cylindrical shell 1 and introduce joint 3, this humidified gases is introduced joint 3 and is communicated with aforesaid shunting chamber 12, on humidified gases introducing joint 3, connect a three-way connection 31, this three-way connection 31 is made of first, second inlet tube 312,313 and adapting pipe 311, adapting pipe 311 is introduced joint 3 with humidified gases and is connected, and first, second inlet tube 312,313 and adapting pipe 311 constitutes one and the three forms Y shape.First, second inlet tube 312,313 is respectively applied for the humidified gases of introducing different makings, and for example first inlet tube 312 is introduced the nitrogen behind the humidifications, and second inlet tube 313 is introduced the argon gas behind the humidifications, and vice versa.Certainly, when first inlet tube 312 was introduced the nitrogen of humidification, then the valve on the tubing pump road of second inlet tube 313 cut out, otherwise in like manner.
At the right-hand member of cylindrical shell 1 is that the bottom of the right-hand member of heating chamber 11 connects a hot and humid gas and draws joint 4, draws joint 4 by this hot and humid gas in the heating chamber 11 and hot and humid gas after heating element heater 2 heating are caused in the burner hearth of the firing furnace of illustrating among the figure 5.By top explanation as can be known, humidified gases is introduced joint 3 and is drawn joint 4 with hot and humid gas and be the diagonal angle setting.
The applicant narrates application of the present utility model, and is when the gas preheating unit of the electronic component burning furnace that the utility model is provided is disposed on the firing furnace 5, then with a cylinder stent 17 that cylindrical shell 1 is fixing with firing furnace 5.In the time will providing makings to be the hot and humid gas of nitrogen to the burner hearth of firing furnace 5, close the valve on the pipeline of second inlet tube 313, open the valve on the pipeline of first inlet tube 312 and open with hot and humid gas and draw valve on the pipeline that joint 4 connects, connect the power supply of heating element heater 2.Damping device such as the nitrogen behind the humidification tube humidification by preceding road are introduced in the joint 3 introducing shunting chambeies 12 through first inlet tube 312, adapting pipe 311 and humidified gases successively, introduce heating chamber 11 by the tap hole on the flow distribution plate 121 1211, by 2 heating of one group of heating element heater, the hot and humid gas after heating is drawn the burner hearth that joint 4 causes firing furnace by hot and humid gas in heating chamber 11.Owing to be humidified gases, therefore enter firing furnace 5 burner hearth be water vapour, steam at high temperature is decomposed into oxygen and hydrogen after entering burner hearth, uses the adjusting oven cavity atmosphere.The size of amount of hot and humid gas that enters the burner hearth of firing furnace 5 is controlled by the valve on the pipeline of first inlet tube 312, if needing to introduce makings to the burner hearth of firing furnace 5 is the hot and humid gas of argon gas, principle is the same so, only need the valve closing on the pipeline of first inlet tube 312, open the valve on the pipeline of second inlet tube 313.
Claims (10)
1. the gas preheating unit of an electronic component burning furnace, it is characterized in that comprising a horizontally-arranged cylindrical shell with heating chamber (11) (1), the left end of this cylindrical shell (1) is a blind end, and shunt chamber (12) by flow distribution plate (121) every being provided with one at this blind end, shunting chamber (12) communicates with described heating chamber (11), and the right-hand member of cylindrical shell (1) is an opening end, and is equipped with a seal cover (13) at this opening end; One group of heating element heater (2) probes in the described heating chamber (11), and fixing with described seal cover (13); One is used for that the gas behind the humidification is introduced described heating chamber (11) introduces joint (3) for the humidified gases of described heating element heater (2) heating, fixes with the left end of cylindrical shell (1), and communicates with described shunting chamber (12); One is used for the hot and humid gas that the gas by after described heating element heater (2) heating with described heating chamber (11) causes firing furnace draws joint (4), fixes with cylindrical shell (1) right-hand member, and communicates with heating chamber (11).
2. the gas preheating unit of electronic component burning furnace according to claim 1 is characterized in that described cylindrical shell (1) is provided with a thermocouple (14) of temperature that is used for predicting the hot and humid gas of described heating chamber (11).
3. the gas preheating unit of electronic component burning furnace according to claim 1 is characterized in that described cylindrical shell (1) is provided with heat-insulation layer (15).
4. the gas preheating unit of electronic component burning furnace according to claim 1, it is characterized in that the upward spaced apart tap hole (1211) that is provided with of described flow distribution plate (121), tap hole (1211) communicates with described shunting chamber (12) and with described heating chamber (11).
5. the gas preheating unit of electronic component burning furnace according to claim 1 is characterized in that being equipped with on the described seal cover (13) protective cover (131), and the sidepiece of this protective cover (131) is extended with a lead inlet tube (1311).
6. the gas preheating unit of electronic component burning furnace according to claim 1 is characterized in that being formed with radiating fin (21) on the outer wall of described heating element heater (2).
7. according to the gas preheating unit of claim 1 or 6 described electronic component burning furnaces, it is characterized in that described heating element heater (2) is crooked electric heating tube.
8. the gas preheating unit of electronic component burning furnace according to claim 7 is characterized in that the described U-shaped bending that is bent into.
9. the gas preheating unit of electronic component burning furnace according to claim 1 is characterized in that described humidified gases introducing joint (3) has connected a three-way connection (31).
10. the gas preheating unit of electronic component burning furnace according to claim 1, it is characterized in that in the described heating chamber (11) and be positioned on the corresponding cavity wall at middle part of length direction of heating chamber (11) respectively being installed with one group of support bar holder (111), on the support bar holder (111) that respectively corresponds to each other, be provided with support bar (1111).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010201242166U CN201628481U (en) | 2010-02-23 | 2010-02-23 | Gas preheating device of electronic component firing furnace |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010201242166U CN201628481U (en) | 2010-02-23 | 2010-02-23 | Gas preheating device of electronic component firing furnace |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201628481U true CN201628481U (en) | 2010-11-10 |
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ID=43059879
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010201242166U Expired - Lifetime CN201628481U (en) | 2010-02-23 | 2010-02-23 | Gas preheating device of electronic component firing furnace |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201628481U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103108526A (en) * | 2011-11-15 | 2013-05-15 | 永济新时速电机电器有限责任公司 | Distributor for cooling system |
| CN108220895A (en) * | 2018-01-15 | 2018-06-29 | 福建阿石创新材料股份有限公司 | Plasma heating formula high temperature oxygen supply |
-
2010
- 2010-02-23 CN CN2010201242166U patent/CN201628481U/en not_active Expired - Lifetime
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103108526A (en) * | 2011-11-15 | 2013-05-15 | 永济新时速电机电器有限责任公司 | Distributor for cooling system |
| CN108220895A (en) * | 2018-01-15 | 2018-06-29 | 福建阿石创新材料股份有限公司 | Plasma heating formula high temperature oxygen supply |
| CN108220895B (en) * | 2018-01-15 | 2019-10-08 | 福建阿石创新材料股份有限公司 | Plasma heating formula high temperature oxygen supply |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20101110 Effective date of abandoning: 20110907 |