CN202788299U - Oven safety door system - Google Patents
Oven safety door system Download PDFInfo
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- CN202788299U CN202788299U CN 201220427590 CN201220427590U CN202788299U CN 202788299 U CN202788299 U CN 202788299U CN 201220427590 CN201220427590 CN 201220427590 CN 201220427590 U CN201220427590 U CN 201220427590U CN 202788299 U CN202788299 U CN 202788299U
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- 238000001514 detection method Methods 0.000 claims abstract description 16
- 230000001105 regulatory effect Effects 0.000 claims description 5
- 238000004519 manufacturing process Methods 0.000 abstract description 9
- 238000004880 explosion Methods 0.000 description 5
- 238000012986 modification Methods 0.000 description 3
- 230000004048 modification Effects 0.000 description 3
- 206010053615 Thermal burn Diseases 0.000 description 2
- 230000005611 electricity Effects 0.000 description 2
- 239000007788 liquid Substances 0.000 description 2
- 238000012544 monitoring process Methods 0.000 description 2
- 239000002994 raw material Substances 0.000 description 2
- 238000010586 diagram Methods 0.000 description 1
- 238000001035 drying Methods 0.000 description 1
- 239000002360 explosive Substances 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 238000002955 isolation Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000002844 melting Methods 0.000 description 1
- 230000008018 melting Effects 0.000 description 1
- 238000000034 method Methods 0.000 description 1
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Abstract
The utility model discloses an oven safety door system which comprises a control box, an electromagnetic valve gas circuit, a locking mechanism and an oven which are sequentially connected. A detection device is arranged in the oven; the detection device is connected with the control box; the oven is provided with a safety door; the safety door is provided with a bulge; and the bulge is connected with the locking mechanism. The oven safety door system detects an operating condition of the oven by using a detecting mechanism and transmits information to the control box; the control box controls the electromagnetic valve gas circuit to work according to a received signal; and the electromagnetic valve gas circuit controls the locking mechanism to enable the safety door in a locked or non-locked state. According to the oven safety door system, the locking mechanism can be controlled to lock the safety door according to different operating conditions of the oven; after a worker opens the safety door of the oven when the temperature or content of combustible gas in the oven is excessively high, the worker is prevented from being scalded or the combustible gas is prevented from being in contact with an ignition source to be exploded so as to cause a production accident; and normal operation of a factory is prevented from being influenced.
Description
Technical Field
The utility model relates to an oven, in particular to oven emergency exit system.
Background
A steam oven, also known as a steam heating oven, is a device mainly used for baking liquid raw materials with high melting points. When the baking liquid is heated by the steam oven, high-temperature and organic inflammable and explosive steam is easily formed in the steam oven. While the oven is in: the state of toasting, combustible gas state that exceeds standard in the oven, the oven has a power failure, stop compressed air, when the unclear state of atmosphere in the oven, if operating personnel opened the oven door by mistake, the high temperature organic steam blowout that leads to producing in the oven very easily leads to operating personnel to be injured with the operating personnel contact, or lead to organic steam in the oven to meet the ignition source (the friction produces the spark when opening the oven) and lead to the explosion, cause the production accident, influence the normal production operation of mill, make the operation cost of mill improve.
Therefore, how to ensure that the oven door cannot be opened by mistake to cause production accidents is a problem to be urgently solved by the technical personnel in the field.
SUMMERY OF THE UTILITY MODEL
The utility model provides a oven emergency exit system can be when the atmosphere in oven work or the oven is unclear, in time locks the oven, avoids personnel to lead to the production accident to take place because of the oven door is opened by mistake.
In order to solve the technical problem, the utility model provides a manufacturing method of a shallow trench isolation structure, which comprises a control box, a solenoid valve gas circuit, a locking mechanism and a drying oven which are connected in sequence; a detection device is arranged in the oven and connected with the control box; the oven is provided with a safety door, the safety door is provided with a bulge, and the bulge is connected with the locking mechanism.
Preferably, a DCS is arranged in the control box.
Preferably, the detection device comprises a temperature sensor, a combustible gas detector and an oven start button, and the temperature sensor, the combustible gas detector and the oven start button are respectively connected with the DCS shielded control cable.
Preferably, the solenoid valve gas circuit includes: the air source, the instrument ball valve, the three-point combination, the pressure gauge, the electromagnetic valve and the air flow regulating valve are sequentially connected through a pipeline, the electromagnetic valve is connected with the control box, and the air flow regulating valve is connected with the locking mechanism.
Preferably, the locking mechanism comprises a cylinder, a stop block and a guide groove; the cylinder is fixed on the top of the oven through a support, the stop block is connected with the cylinder, the guide groove is arranged on the protrusion, and the guide groove is matched with the stop block.
Preferably, the cylinder is fixed on the bracket by adopting a spring screw.
Preferably, the cylinder is connected to the stopper by a cylinder shaft.
Preferably, the cylinder is a rod non-rotating spring-extending single-acting cylinder.
Compared with the prior art, the utility model discloses an oven safety door control system includes: the device comprises a control box, an electromagnetic valve gas circuit, a locking mechanism and an oven which are sequentially connected, wherein a detection device is arranged in the oven and is connected with the control box; the oven is provided with a safety door, the safety door is provided with a bulge, and the bulge is connected with the locking mechanism. The utility model discloses an oven emergency exit system detects the operating condition of oven through using detection mechanism to the information transfer who detects links to each other with detection mechanism's control box, and the control box is according to the work of the signal control solenoid valve gas circuit of receipt, and solenoid valve gas circuit control locking mechanical system, thereby makes the emergency exit be in corresponding locking or non-locking state. Oven emergency exit system can be according to the different operating condition of oven, and control locking mechanical system locks the emergency exit, avoids the staff too high temperature or when combustible gas content was too high in the oven, opens the emergency exit of oven and causes the staff to scald, or the combustible gas meets the ignition source and leads to the explosion, causes the production accident, avoids influencing the normal operation of mill and the thing that the operation cost of mill improves to take place.
Drawings
Fig. 1 is a schematic structural diagram of an oven safety door system according to an embodiment of the present invention.
In the figure: 21-air source, 22-instrument ball valve, 23-three-point combination, 24-pressure gauge, 25-electromagnetic valve, 26-air flow regulating valve, 31-air cylinder, 32-stop block, 33-guide groove, 34-air cylinder shaft, 40-oven, 41-projection, 42-spring screw and 43-support.
Detailed Description
In order to make the above objects, features and advantages of the present invention more comprehensible, embodiments of the present invention are described in detail below with reference to the accompanying drawings. It should be noted that the drawings of the present invention are simplified and use non-precise ratios, and are only used for the purpose of facilitating and clearly assisting the description of the embodiments of the present invention.
Referring to fig. 1, the oven safety door system of the present invention includes: a control box (not shown), an electromagnetic valve gas circuit, a locking mechanism and an oven 40 which are connected in sequence; wherein, a detection device (not shown) is arranged in the oven 40, and the detection device is connected with the control box; a safety door (not shown) is arranged on the oven 40, a protrusion 41 is arranged on the safety door, and the protrusion 41 is connected with the locking mechanism.
The detection device detects the working state of the oven 40, the temperature in the oven 40 and the content of combustible gas in the oven 40 at any time, and transmits the detected information to the control box, the control box controls the electromagnetic valve gas circuit to work according to the received information, and the electromagnetic valve gas circuit controls the locking mechanism, so that the safety door is in a corresponding locking or non-locking state. Like this, can avoid operating personnel to open oven 40's emergency exit when oven 40 inside high temperature or atmosphere are unclear, avoid operating personnel injured or combustible gas meets the emergence that fire leads to the explosion accident in the oven, ensure the normal production operation of mill, reduce the operation cost of mill.
In this embodiment, the detection device includes a temperature sensor, a combustible gas detector, and an oven start button, the temperature sensor, the combustible gas detector, and the oven start button are respectively connected to the control box with a shielded control cable, and a DCS (distributed control system) is provided in the control box. The temperature sensor is used for monitoring the temperature in the oven 40 in real time, the combustible gas detector is used for monitoring the content of combustible gas in the oven 40 in real time, and the oven starting button is used for judging whether the oven 40 is in a working state, namely, the control box judges whether the oven is in the working state according to the on-off state of the oven starting button. The DCS respectively receives information from the temperature sensor, the combustible gas detector and the oven starting button, and controls the electromagnetic valve gas circuit according to the received information, so that the electromagnetic valve gas circuit controls the locking mechanism and controls the oven safety door.
In this embodiment, the solenoid valve gas circuit includes air supply 21, instrument ball valve 22, three-point combination 23, manometer 24, solenoid valve 25 and air flow control valve 26 that connect gradually through the pipeline, solenoid valve 25 with the control box links to each other, air flow control valve 26 with locking mechanism links to each other. The locking mechanism comprises a cylinder 31, a stop 32 and a guide groove 33; wherein, the cylinder 31 is fixed on the top of the oven 40 through a bracket 43, the stopper 32 is connected with the cylinder 31, the guide groove 33 is arranged on the protrusion 41, and the guide groove 33 is engaged with the stopper 32. The controller 1 controls the electromagnetic valve 25 according to a signal received from the detection device, so that the electromagnetic valve is in an open state or a closed state, the electromagnetic valve 25 controls the electromagnetic valve air passage, the electromagnetic valve air passage controls the cylinder 31, the cylinder 31 controls the stop block 32 to move up and down, when the safety door of the oven 40 cannot be opened, the stop block 32 is controlled by the cylinder 31 to enter the guide groove 33, so that the safety door is in a locking state, and the oven is prevented from being opened by mistake of workers. When the raw materials are not baked in the oven 40, the temperature in the oven 40 is not high, and the combustible gas in the oven does not exceed the standard, the air cylinder 31 controls the stop block 32 to return to leave the guide groove 33, and the safety door can be normally opened.
In this embodiment, the cylinder 1 is fixed on the bracket 43 by a spring screw 42, and the cylinder 31 is connected with the stopper 32 through a cylinder shaft 34. Preferably, the cylinder 1 is a rod non-rotation spring extension type single-action cylinder, so that the safety door is in a locking state when the oven safety door system stops air or power.
The operation of the oven safety door system when the oven 40 is in different states will be described in detail below.
Firstly, the control box obtains the working state of the oven 40 from an oven starting button, the temperature sensor detects the temperature in the oven 40, the combustible gas detector detects the content of combustible gas in the oven 40 and transmits the content to the control box in real time, then the control box controls the electromagnetic valve 25 according to the received information, the electromagnetic valve 25 controls the air passage of the electromagnetic valve, and therefore the locking mechanism is controlled, and the safety door of the oven 40 is in a corresponding locking or non-locking state. Specifically, the method comprises the following steps:
when the oven 40 is in a working state, no matter whether the temperature in the oven 40 or the content of combustible gas exceeds the standard or not, the control box controls the electromagnetic valve 25 to ensure that the electromagnetic valve 25 is powered off and closed, so that the cylinder shaft 34 in the cylinder 31 extends out, the stop block 32 is driven to move downwards to be inserted into the guide groove 33 on the protrusion 41, and the safety door of the oven 40 is in a locking state;
when the materials are not baked in the oven 40, the temperature in the oven 40 is less than 100 ℃, and the LEL value (lower explosion limit value) of combustible gas in the oven 40 is less than 6, the electromagnetic valve 25 is powered on, the cylinder shaft 34 in the cylinder 31 is in a retracted state, the stop block 32 is pulled to move upwards and leave the guide groove 33 on the safety door protrusion 41, and the oven is in a non-locking state;
at any time, when the temperature in the oven 40 is greater than or equal to 100 ℃, or the LEL value of combustible gas in the oven 40 is greater than or equal to 6, the electromagnetic valve 25 is powered off and closed, so that the safety door of the oven 40 is in a locking state;
when the oven safety door system is in power failure or gas failure, the cylinder shaft 34 of the cylinder 32 is in an extending state, the cylinder shaft 34 in the cylinder 31 extends to drive the stop block 32 to move downwards and be inserted into the guide groove 33, and the safety door of the oven 40 is locked and cannot be opened, so that the oven 40 is in a safety state when the atmosphere in the oven 40 is unknown in the power failure or gas failure state.
To sum up, the utility model provides an oven emergency exit system detects oven 40's operating condition through using detection mechanism to the information transfer that will detect links to each other with detection mechanism in the control box, the control box is according to the work of the signal control solenoid valve gas circuit of receiving, the solenoid valve gas circuit is according to the instruction of control box, control solenoid valve 25, make solenoid valve 25 be in the state of getting electricity or losing electricity, thereby make cylinder shaft 34 in the cylinder 31 drive dog 32 downward or rebound, make the emergency exit be in corresponding locking or non-locking state. Oven emergency exit system can be according to the different operating condition of oven, and control locking mechanical system locks the emergency exit, avoids the staff too high temperature or when combustible gas content was too high in the oven, opens the emergency exit of oven and causes the staff to scald, or the combustible gas meets the ignition source and leads to the explosion, causes the production accident, avoids influencing the normal operation of mill and the thing that the operation cost of mill improves to take place.
It will be apparent to those skilled in the art that various changes and modifications may be made to the present invention without departing from the spirit and scope of the invention. Thus, if such modifications and variations of the present invention fall within the scope of the claims and their equivalents, the present invention is also intended to include such modifications and variations.
Claims (8)
1. A safety door system of an oven is characterized by comprising a control box, an electromagnetic valve gas circuit, a locking mechanism and the oven which are sequentially connected; wherein,
a detection device is arranged in the oven and is connected with the control box;
the oven is provided with a safety door, the safety door is provided with a bulge, and the bulge is connected with the locking mechanism.
2. The oven safety door system of claim 1, wherein the control box has a DCS therein.
3. The oven safety door system of claim 2, wherein the detection device comprises a temperature sensor, a combustible gas detector, and an oven start button, the temperature sensor, the combustible gas detector, and the oven start button each being connected to the DCS with shielded control cables.
4. The oven safety door system of claim 1, wherein the solenoid valve gas circuit comprises: the air source, the instrument ball valve, the three-point combination, the pressure gauge, the electromagnetic valve and the air flow regulating valve are sequentially connected through a pipeline, the electromagnetic valve is connected with the control box, and the air flow regulating valve is connected with the locking mechanism.
5. The oven safety door system of claim 1, wherein the locking mechanism comprises a cylinder, a stop, and a guide slot; the cylinder is fixed on the top of the oven through a support, the stop block is connected with the cylinder, the guide groove is arranged on the protrusion, and the guide groove is matched with the stop block.
6. An oven safety door system as claimed in claim 5, wherein the cylinder is secured to the bracket using spring screws.
7. Oven safety door system according to claim 5, characterized in that the cylinder is connected to the stop by a cylinder shaft.
8. An oven safety door system as claimed in claim 5, wherein the cylinder is a rod non-pivoting spring-extension type single-acting cylinder.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220427590 CN202788299U (en) | 2012-08-27 | 2012-08-27 | Oven safety door system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220427590 CN202788299U (en) | 2012-08-27 | 2012-08-27 | Oven safety door system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202788299U true CN202788299U (en) | 2013-03-13 |
Family
ID=47815576
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220427590 Expired - Fee Related CN202788299U (en) | 2012-08-27 | 2012-08-27 | Oven safety door system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202788299U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104082856A (en) * | 2014-07-30 | 2014-10-08 | 大亚科技股份有限公司 | Automatic locking device of baking oven of gantry combination machine |
| CN105275298A (en) * | 2014-06-08 | 2016-01-27 | 中国航天科工集团第六研究院四十六所 | Remote automatic door opening device for high-temperature explosive storage baking oven |
| CN106965399A (en) * | 2017-05-22 | 2017-07-21 | 徐振勇 | Safety door mechanical protection lock before a kind of large size plastic jetting-moulding device is automatic |
| CN106979887A (en) * | 2017-05-10 | 2017-07-25 | 安徽中创食品检测有限公司 | Food inspection Muffle furnace burn-proof device |
-
2012
- 2012-08-27 CN CN 201220427590 patent/CN202788299U/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105275298A (en) * | 2014-06-08 | 2016-01-27 | 中国航天科工集团第六研究院四十六所 | Remote automatic door opening device for high-temperature explosive storage baking oven |
| CN104082856A (en) * | 2014-07-30 | 2014-10-08 | 大亚科技股份有限公司 | Automatic locking device of baking oven of gantry combination machine |
| CN104082856B (en) * | 2014-07-30 | 2016-08-24 | 江苏大亚新型包装材料有限公司 | Gantry compounding machine baking oven automatic locking apparatus |
| CN106979887A (en) * | 2017-05-10 | 2017-07-25 | 安徽中创食品检测有限公司 | Food inspection Muffle furnace burn-proof device |
| CN106965399A (en) * | 2017-05-22 | 2017-07-21 | 徐振勇 | Safety door mechanical protection lock before a kind of large size plastic jetting-moulding device is automatic |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130313 Termination date: 20190827 |
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| CF01 | Termination of patent right due to non-payment of annual fee |