CN210426093U - Muffle furnace with cooling chamber - Google Patents
Muffle furnace with cooling chamber Download PDFInfo
- Publication number
- CN210426093U CN210426093U CN201921309953.0U CN201921309953U CN210426093U CN 210426093 U CN210426093 U CN 210426093U CN 201921309953 U CN201921309953 U CN 201921309953U CN 210426093 U CN210426093 U CN 210426093U
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- Prior art keywords
- cooling chamber
- heat insulation
- insulation plate
- heating
- chamber
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Abstract
The utility model relates to a muffle furnace with a cooling chamber, which comprises a shell, a sample table, a power piece, a heating chamber and a cooling chamber, wherein the heating chamber and the cooling chamber are arranged in the shell; a hearth and a heating element are arranged in the heating chamber, the heating element is fixed on the inner side of the hearth, and a heat-insulating layer is arranged between the hearth and the shell; the cooling chamber is internally provided with a fan, a first rail and a second rail, the first rail and the second rail extend from the cooling chamber to the heating chamber and are fixedly arranged, and two sides of the sample table are respectively matched with the first rail and the second rail. Set up heating chamber and cooling chamber simultaneously in the casing, realize the heating and the cooling work of sample in the same equipment, avoid removing high temperature sample, reduced laboratory staff's operational risk, it is simple and convenient safe and reliable.
Description
Technical Field
The utility model relates to a muffle furnace field especially relates to a muffle furnace with cooling chamber.
Background
Muffle furnace is the laboratory used for sample high temperature heating instrument equipment. In prior art, put into the muffle furnace with the sample and heat, the sample high temperature is difficult for taking out after the heating, can only arrange slowly cooling to the room temperature in the furnace in, because the temperature of muffle furnace heating is higher, has the residual temperature after the outage after the heating, and the cooling needs longer time to the room temperature, causes sample efficiency too slow, and the danger is higher. In addition, in the process of heating the sample, the heating condition of the muffle furnace needs to be monitored manually at any time, which consumes labor and time.
SUMMERY OF THE UTILITY MODEL
For this reason, it is necessary to provide a muffle furnace with a cooling chamber to solve the problem of slow cooling rate of the heated sample in the muffle furnace.
In order to achieve the above object, the inventor provides a muffle furnace with a cooling chamber, comprising a housing, a sample stage, a power member, and a heating chamber and a cooling chamber which are arranged in the housing, wherein a fixed end of the power member is fixed in the cooling chamber, an output end of the power member is connected to the sample stage, and the power member is used for pushing the sample stage to and fro between the heating chamber and the cooling chamber;
a hearth and a heating element are arranged in the heating chamber, the hearth is of a shell-shaped structure with an opening at one end, the opening of the hearth is fixedly arranged towards the direction of the cooling chamber, the heating element is fixed on the inner side of the hearth, and a heat-insulating layer is arranged between the hearth and the shell;
the cooling chamber is internally provided with a fan, a first track and a second track, the shell is provided with a fan mounting hole, the fan is mounted in the fan mounting hole, the first track and the second track extend from the cooling chamber to the heating chamber and are fixedly arranged, two sides of the sample table are respectively matched with the first track and the second track, and the sample table slides along the first track and the second track.
Further, the cooling device also comprises a heat insulation plate, wherein the heat insulation plate is arranged between the cooling chamber and the heating chamber and can be opened and closed.
The heat insulation plate comprises a first heat insulation plate and a second heat insulation plate, a first through hole and a second through hole are formed in the side wall of the shell, the first heat insulation plate is arranged in the first through hole in a penetrating mode, and the second heat insulation plate is arranged in the second through hole in a penetrating mode;
the first heat insulation plate is connected with a first pneumatic element, the first pneumatic element is used for driving the first heat insulation plate to move in the first through hole, the second heat insulation plate is connected with a second pneumatic element, and the second pneumatic element is used for driving the second heat insulation plate to move in the second through hole.
Further, a first sealing element is arranged between the first heat insulation plate and the first through hole, and a second sealing element is arranged between the second heat insulation plate and the second through hole.
Further, still include tray and slide rail, the both sides of tray are connected in first track and second track respectively through slide rail and are terminal towards one side of cooling chamber, the tray through-hole has been seted up on the tray, the tray sets up between power spare and sample platform, the output of power spare passes the tray through-hole and is connected with sample platform bottom, the shell has seted up into discharge gate corresponding to the position of slide rail.
Further, the heating chamber is arranged above the cooling chamber, and the first rail and the second rail are both vertically arranged.
Furthermore, sample grooves are uniformly arranged on the sample table.
Further, still include singlechip, temperature sensor, comparator and first switch, temperature sensor sets up in the heating chamber, temperature sensor is connected with the comparator electricity, temperature sensor and first switch all are connected with the singlechip electricity, the singlechip is connected with heating element electricity.
Further, the intelligent control system also comprises a first timer, wherein the first timer is electrically connected with the single chip microcomputer.
Further, the pneumatic element control device, the second timer and the second switch are further included, the pneumatic element control device is respectively electrically connected with the first pneumatic element and the second pneumatic element, and the second switch and the second timer are both electrically connected with the pneumatic element control device.
Different from the prior art, the technical scheme has the following advantages: set up heating chamber and cooling chamber simultaneously in the casing, realize the heating and the cooling work of sample in the same equipment, avoid removing high temperature sample, reduced laboratory staff's operational risk, it is simple and convenient safe and reliable.
Drawings
FIG. 1 is a schematic view showing the overall structure of a muffle furnace having a cooling chamber according to the present embodiment;
FIG. 2 is a schematic diagram of a sample cell of a muffle furnace having a cooling chamber according to the present embodiment.
Description of reference numerals:
1. a housing;
2. a sample stage;
21. a sample tank;
3. a power member;
4. a heating chamber;
41. a hearth;
42. a heating element;
5. a cooling chamber;
51. a fan;
52. a first track;
53. a second track;
54. a tray;
61. a first heat insulation plate;
62. a second heat shield.
Detailed Description
To explain technical contents, structural features, and objects and effects of the technical solutions in detail, the following detailed description is given with reference to the accompanying drawings in conjunction with the embodiments.
Referring to fig. 1 and 2, the present invention provides a muffle furnace with a cooling chamber, including a housing 1, a sample stage 2, a power member 3, and a heating chamber 4 and a cooling chamber 5 arranged in the housing, wherein the muffle furnace integrates heating and cooling, and a sample to be heated is first heated in the heating chamber to a set temperature and then is placed in the cooling chamber for cooling.
The fixed end of the power piece is fixed in the cooling chamber, the output end of the power piece is connected to the sample table, and the power piece is used for pushing the sample table between the heating chamber and the cooling chamber in a reciprocating manner; when the power piece is in the initial position, the sample platform is located in the cooling chamber and loads the sample in the cooling chamber, the power piece pushes the sample platform to the heating chamber after working, and after the sample is heated, the power piece reverses to return the sample to the cooling chamber for cooling.
In this embodiment, the power member is a cylinder, an electric cylinder, or a lead screw motor.
The heating chamber is internally provided with a hearth 41 and a heating element 42, the hearth is made of high-temperature resistant materials and is generally made of alumina polycrystalline fiber materials, the hearth is of a shell-shaped structure with an opening at one end, the opening of the hearth is fixedly arranged towards the direction of the cooling chamber, the opening of the hearth is used for pushing a sample in the cooling chamber into the heating chamber through the opening to be heated, the heating element is fixed on the inner side of the hearth and is a silicon-molybdenum rod, the heating element is fixed on the side wall of the hearth and can be only arranged on one side wall of the hearth or two opposite side walls of the hearth or each side wall of the hearth is provided with the heating element. Be provided with the heat preservation between furnace and the casing, the material of heat preservation is ceramic fiber product, and the heat preservation is filled between the outer wall of furnace and shells inner wall, heats when heating element work, and the temperature progressively risees in the furnace, and the heat preservation can effectively cut off the effect with the external world to furnace for the sample is at the heating rate in the heating chamber.
In this embodiment, the housing is made of cold-rolled steel, which can effectively insulate heat.
The fan 51 is arranged in the fan mounting hole, and the fan arranged in the cooling chamber works after the heated sample enters the cooling chamber, so that the air flow rate in the cooling chamber and the convection with the outside air are accelerated, and the cooling of the sample is accelerated.
In this embodiment, the ventilation opening is opened at the position where the housing is opposite to the fan, and when the fan works, air sucked by the fan can flow out of the ventilation opening, and meanwhile, hot air of a sample in the cooling chamber is taken away. In some preferred embodiments, the fan is a louver fan, and when the cooling chamber is in an inoperative state, the louver of the fan is in a closed state, thereby keeping the cooling chamber dry and preventing impurities such as dust from contaminating the cooling chamber.
The first rail and the second rail extend from the cooling chamber to the heating chamber and are fixedly arranged, two sides of the sample stage are respectively matched with the first rail 52 and the second rail 53, and the sample stage slides along the first rail and the second rail. The sample platform slides between cooling chamber and heating chamber along first track and second track under the effect of power spare, and the both sides of sample platform slide along first track and second slide rail, can effectively avoid taking place to rock under the reciprocal promotion of power spare, cause the sample to drop. Especially, the heated sample is transferred into the cooling chamber from the heating chamber, if the sample table shakes, the sample falls off from the sample table and falls out of the shell, and the personal injury to experiment operators can be caused.
In a preferred embodiment, the muffle furnace with the cooling chamber further comprises a heat insulation plate which is arranged between the cooling chamber and the heating chamber and can be opened and closed. When the heating chamber is heated, the heat insulation plate separates the cooling chamber from the heating chamber, and the heat loss of hot air in the heating chamber to the cooling chamber is reduced. The heat insulation board is also made of ceramic fiber. Specifically, the heat insulating plate and the inner wall of the shell can be connected through a hinge or a slide rail, when the sample platform in the cooling chamber pushes the heating chamber or the heating chamber pushes the sample to the cooling chamber, the heat insulating plate is in an open state, otherwise, the heat insulating plate is in a closed state, namely, the heating chamber and the cooling chamber are isolated.
In a more preferred embodiment, the muffle furnace with the cooling chamber further comprises a first pneumatic element and a second pneumatic element, the heat-insulating plates comprise a first heat-insulating plate 61 and a second heat-insulating plate 62, the side wall of the shell is provided with a first through hole and a second through hole, the first heat-insulating plate is arranged in the first through hole in a penetrating manner, and the second heat-insulating plate is arranged in the second through hole in a penetrating manner; the first heat insulation plate is connected with a first pneumatic element, the first pneumatic element is used for driving the first heat insulation plate to move in the first through hole, the second heat insulation plate is connected with a second pneumatic element, and the second pneumatic element is used for driving the second heat insulation plate to move in the second through hole.
When a sample table in the cooling chamber pushes the heating chamber or the heating chamber pushes a sample to the cooling chamber, the first pneumatic element and the second pneumatic element respectively drive the first heat insulation plate and the second heat insulation plate to move to separate the first heat insulation plate and the second heat insulation plate, and after pushing is completed, the first pneumatic element and the second pneumatic element respectively drive the first heat insulation plate and the second heat insulation plate to move to close the first heat insulation plate and the second heat insulation plate.
More preferably, a first sealing element is arranged between the first heat insulation plate and the first through hole, a second sealing element is arranged between the second heat insulation plate and the second through hole, and the first sealing element and the second sealing element can isolate the inner space and the outer space of the casing, so that hot air in the heating chamber is prevented from leaking from the first through hole and the second through hole.
In some preferred embodiments, the muffle furnace with the cooling chamber further comprises a tray 54 and a slide rail, wherein two sides of the tray are respectively connected to the end of one side of the first rail and the end of one side of the second rail, which faces the cooling chamber, through holes are formed in the tray, the tray is arranged between the power piece and the sample stage, and the output end of the power piece penetrates through the through holes of the tray and is connected with the bottom of the sample stage. In the process of jacking up or descending the power piece, the position of the tray is kept unchanged, and the output end of the power piece penetrates through the tray through hole to push the sample table upwards into the heating chamber or move downwards to return to the initial position. The tray is pushed out or sent into the cooling chamber along the direction of the slide rail to finish the feeding or discharging action.
In certain preferred embodiments, the heating chamber is disposed above the cooling chamber, and the first rail and the second rail are both disposed vertically. The output direction of the power member is also vertical. The sample table is pushed in the vertical direction, so that the sample can be effectively prevented from falling off from the sample, and the occupied area of the muffle furnace with the cooling chamber can be effectively reduced.
In some preferred embodiments, the sample stage is uniformly provided with sample grooves 21, the sample grooves are used for placing crucibles or other heating sample instruments, samples are placed in heating containers for heating, and the sample grooves fix the position of each sample or heating container to avoid falling off during the movement of the sample stage.
In this embodiment, this muffle furnace with cooling chamber still includes singlechip, temperature sensor, comparator and first switch, temperature sensor sets up in the heating chamber, temperature sensor is connected with the comparator electricity, temperature sensor and first switch all are connected with the singlechip electricity, the singlechip is connected with heating element electricity. Be provided with the program that control heating element opened and stops in the singlechip, first switch opens the back, heating element begins work, temperature sensor detects the heating temperature in the heating chamber in real time, temperature sensor compares the temperature value that detects with the temperature value that the comparator was predetermine, after the temperature in the heating chamber reaches the most suitable heating temperature of default, singlechip control heating element stops heating work, when temperature sensor detects that the temperature in the heating chamber is less than preset temperature, singlechip control heating element continues work, make and keep in the heating chamber at invariable temperature value scope all the time. Preferably, the sample heating device further comprises a first timer, the first timer is electrically connected with the single chip microcomputer, the first timer starts timing after the first switch is turned on, the single chip microcomputer controls the heating element to stop working after a preset time point is reached, and the sample heating work is finished.
When the muffle furnace is provided with the first pneumatic element and the second pneumatic element, the muffle furnace is further provided with a pneumatic element controller, a second timer and a second switch, the pneumatic element controller is respectively and electrically connected with the first pneumatic element and the second pneumatic element, the second switch and the second timer are respectively and electrically connected with the pneumatic element controller, and the pneumatic element controller is used for controlling the first pneumatic element and the second starting element to open or close the first partition plate and the second partition plate. After a sample to be heated is placed in the sample frame and pushed into the cooling chamber, the second switch is turned on, the first partition plate and the second partition plate are opened through the first pneumatic element and the second pneumatic element by the pneumatic element controller, the power part is started, the power part is lifted upwards, the sample table is sent into the heating chamber, after the preset time in the second timer, the first partition plate and the second partition plate are controlled to be closed by the pneumatic element controller, when the first partition plate and the second partition plate are closed to be smaller than the size of the sample table, the controllable braking force part descends to leave the positions of the first heat insulation plate and the second heat insulation plate, and the output end of the power part is prevented from interfering with the first heat insulation plate and the second heat insulation plate.
It should be noted that, although the above embodiments have been described herein, the scope of the present invention is not limited thereby. Therefore, based on the innovative concept of the present invention, the changes and modifications of the embodiments described herein, or the equivalent structure or equivalent process changes made by the contents of the specification and the drawings of the present invention, directly or indirectly apply the above technical solutions to other related technical fields, all included in the protection scope of the present invention.
Claims (10)
1. A muffle furnace with a cooling chamber, characterized in that: the device comprises a shell, a sample table, a power part, a heating chamber and a cooling chamber, wherein the heating chamber and the cooling chamber are arranged in the shell;
a hearth and a heating element are arranged in the heating chamber, the hearth is of a shell-shaped structure with an opening at one end, the opening of the hearth is fixedly arranged towards the direction of the cooling chamber, the heating element is fixed on the inner side of the hearth, and a heat-insulating layer is arranged between the hearth and the shell;
the cooling chamber is internally provided with a fan, a first track and a second track, the shell is provided with a fan mounting hole, the fan is mounted in the fan mounting hole, the first track and the second track extend from the cooling chamber to the heating chamber and are fixedly arranged, two sides of the sample table are respectively matched with the first track and the second track, and the sample table slides along the first track and the second track.
2. The muffle furnace with cooling chamber of claim 1, wherein: the cooling device further comprises a heat insulation plate, wherein the heat insulation plate is arranged between the cooling chamber and the heating chamber and can be opened and closed.
3. The muffle furnace with cooling chamber of claim 2, wherein: the heat insulation plate comprises a first heat insulation plate and a second heat insulation plate, a first through hole and a second through hole are formed in the side wall of the shell, the first heat insulation plate is arranged in the first through hole in a penetrating mode, and the second heat insulation plate is arranged in the second through hole in a penetrating mode;
the first heat insulation plate is connected with a first pneumatic element, the first pneumatic element is used for driving the first heat insulation plate to move in the first through hole, the second heat insulation plate is connected with a second pneumatic element, and the second pneumatic element is used for driving the second heat insulation plate to move in the second through hole.
4. The muffle furnace with cooling chamber of claim 3, wherein: a first sealing element is arranged between the first heat insulation plate and the first through hole, and a second sealing element is arranged between the second heat insulation plate and the second through hole.
5. The muffle furnace with cooling chamber of claim 1, wherein: still include tray and slide rail, the both sides of tray are respectively through sliding rail connection in first track and second track towards one side end of cooling chamber, the tray through-hole has been seted up on the tray, the tray sets up between power spare and sample platform, the output of power spare passes the tray through-hole and is connected with sample platform bottom, the shell has seted up into discharge gate corresponding to the position of slide rail.
6. The muffle furnace with cooling chamber of claim 1, wherein: the heating chamber is arranged above the cooling chamber, and the first rail and the second rail are both vertically arranged.
7. The muffle furnace with cooling chamber of claim 1, wherein: sample grooves are uniformly arranged on the sample table.
8. The muffle furnace with cooling chamber of claim 1, wherein: still include singlechip, temperature sensor, comparator and first switch, temperature sensor sets up in the heating chamber, temperature sensor is connected with the comparator electricity, temperature sensor and first switch all are connected with the monolithic is electromechanical, the singlechip is connected with the heating element electricity.
9. The muffle furnace with cooling chamber of claim 8, wherein: the automatic control system also comprises a first timer, wherein the first timer is electrically connected with the single chip microcomputer.
10. The muffle furnace with cooling chamber of claim 1, wherein: the pneumatic element control device is electrically connected with the first pneumatic element and the second pneumatic element respectively, and the second switch and the second timer are electrically connected with the pneumatic element control device.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921309953.0U CN210426093U (en) | 2019-08-13 | 2019-08-13 | Muffle furnace with cooling chamber |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921309953.0U CN210426093U (en) | 2019-08-13 | 2019-08-13 | Muffle furnace with cooling chamber |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210426093U true CN210426093U (en) | 2020-04-28 |
Family
ID=70363622
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921309953.0U Expired - Fee Related CN210426093U (en) | 2019-08-13 | 2019-08-13 | Muffle furnace with cooling chamber |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN210426093U (en) |
-
2019
- 2019-08-13 CN CN201921309953.0U patent/CN210426093U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20200428 Termination date: 20210813 |