CN202290028U - Microwave digestion instrument - Google Patents
Microwave digestion instrument Download PDFInfo
- Publication number
- CN202290028U CN202290028U CN2011203335672U CN201120333567U CN202290028U CN 202290028 U CN202290028 U CN 202290028U CN 2011203335672 U CN2011203335672 U CN 2011203335672U CN 201120333567 U CN201120333567 U CN 201120333567U CN 202290028 U CN202290028 U CN 202290028U
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- Prior art keywords
- temperature
- sensor
- digestion
- pressure
- sample
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Abstract
The utility model discloses a microwave digestion instrument, which comprises a turntable and a digestion pot arranged on the turntable, wherein the top of the digestion pot is provided with a warm-pressing junction box capable of freely rotating; the digestion pot is provided with a sensor; and the sensor is connected with the warm-pressing junction box. According the microwave digestion instrument disclosed by the utility model, the length of a warm-pressing measurement and control cable is greatly shortened, so that the defect caused by the overlong measurement and control cable is eliminated; a motor can be prevented from being damaged by overlarge starting current and starting torque of the motor of the turntable due to frequency direction alternation, and the service life of the motor is prolonged; the microwave energy receiving uniformity of a sample is increased, working pressure and temperature of the instrument are improved, and promotion of digestion quality of the sample is facilitated; and therefore the cross pollution of the sample in a main control pot is eliminated foundationally.
Description
Technical field
The utility model relates to a kind of microwave dissolver, particularly a kind of microwave dissolver that has the temperature and pressure checkout gear that is applied to the analytical chemistry field.
Background technology
Along with the progress of chemical industry, the technology of micro-wave digestion sample has obtained using widely in the analytical chemistry field.The reasonability of the design and installation of the monitoring device of temperature and pressure technology in the microwave dissolver directly has influence on service behaviour, security and the service life of this instrument.
In general, microwave dissolver no matter once clear up several samples, wherein must have a master control counteracting tank at work.Record the temperature and pressure in the master control counteracting tank, represent the temperature and pressure of other counteracting tanks basically.The temperature that records in the master control jar is generally used the PT-100 temperature sensor; Record the pressure in the master control jar, the waterline impulse is arranged, wireway pilot, piezo-electric crystal pressure measurement.At present, the waterline impulse is superseded basically, and wireway pilot mode is comparatively extensive.
In conventional device, for example, the PT-100 sensor is sent to the temperature signal in the master control jar through shielded cable and is installed in the outside master control borad of furnace chamber, and the temperature in the master control jar is monitored.Wireway is airtight through seal and master control jar, the pressed gas in the master control jar is directed to is installed in furnace chamber outside pressure sensor or piezo-electric crystal, and the pressure that records in the master control jar carries out observing and controlling through master control borad to the pressure in the master control jar.In order to make counteracting tank receive the homogeneous radiation of microwave, rotating disk is ceaselessly rotated.But because the cable for measuring temperature and one of the wireway that are installed on the master control jar are fixed on the furnace chamber wall, this just can't make rotating disk rotate toward the direction, and can only come back rotation in 360 ° of scope inner conversion directions.Here it is the present both at home and abroad temperature and pressure measure and control device that generally adopts of microwave dissolver.Such device has following shortcoming:
First: cable for measuring temperature and pressure measurement pipeline are very long, generally are more than the twice of the rotating disk radius of gyration.For about 400-600mm, require outstanding swinging to follow rotating disk ceaselessly to come back rotation at the furnace chamber top, twine mutually easily, wear and tear and fracture.
Second: rotating disk must rotate back and forth, and causes the starting current of drive motors and starting torque very big, and burn out motor easily and influence motor service life, thus higher to the quality requirement of motor, improved cost indirectly.
The 3rd: because rotating disk comes back rotation in 360 ° of scopes, rotating disk has a dead time at every turn when changing direction, and it is inhomogeneous that this just causes counteracting tank to accept microwave energy, influenced the quality of Specimen eliminating to a certain extent.
The the 4th:, make the interior sample of master control counteracting tank cause cross pollution easily, so wireway needs often to change because wireway directly contacts with the interior sample of counteracting tank.
The 5th: because wireway is a kind of nonmetal teflon material, can not high pressure resistant high temperature, can only 250 ℃ with use below the 4MPa, otherwise can burst accident.
Those skilled in the art are devoted to provide a kind of microwave dissolver, can solve the problems of the technologies described above.
The utility model content
The technical problem that the utility model will solve is that to overcome in the prior art induction cable long, and easy abrasion is twined, and motor is required high, and motor is fragile, Specimen eliminating of low quality with problem such as the easy cross pollution of sample, a kind of novel microwave counteract appearance is provided.
The utility model solves above-mentioned technical problem through following technical proposals:
A kind of microwave dissolver comprises rotating disk and is placed on the counteracting tank on the rotating disk that its characteristics are that said counteracting tank top is provided with the temperature and pressure terminal box that can rotate freely, and counteracting tank is provided with sensor, and said sensor is connected with the temperature and pressure terminal box.
Preferably, said temperature and pressure terminal box and counteracting tank top articulate.
Preferably, said sensor comprises temperature sensor and/or pressure sensor.
Preferably, said pressure sensor comprises a piezo-electric crystal, and said piezo-electric crystal is installed in the top of counteracting tank.
Preferably, said piezo-electric crystal and counteracting tank are through being threaded.
Preferably, said sensor is connected with the temperature and pressure terminal box through shielded cable.
Preferably, said temperature and pressure terminal box is rotated in company with rotating disk toward the direction.
Preferably, said counteracting tank quantity is a plurality of.
In the utility model, but above-mentioned optimum condition combination in any on the basis that meets this area general knowledge promptly gets each preferred embodiment of the utility model.
The positive progressive effect of the utility model is:
First: the length that has realized having shortened greatly after rotating disk and temperature and pressure measure and control device rotate toward the direction the temperature and pressure measurement and control cables: length is reduced to about 150mm by original 400-600mm, thereby has eliminated the disadvantage of bringing because of measurement and control cable is long.
Second: owing to, avoided, prolonged motor service life because of the frequent changes direction makes rotary tray motor starting current and the excessive motor that damages of staring torque all the time towards the rotation of direction.
The the 3rd: because towards the rotation of direction, middlely do not pause, increased the uniformity that sample is accepted microwave energy, help improving the quality of clearing up of sample.
The 4th: the bottom or the top of adopting piezo-electric crystal to be installed in the master control jar record the pressure in the master control jar indirectly, and be thoroughly isolated with sample in the master control jar, therefore, fundamentally eliminated the cross pollution of sample in the master control jar.
The 5th: abandon and adopt nonmetallic wireway, the instrument service pressure can be brought up to 6.3Mpa, and normal working temperature can be brought up to 280 ℃.
Description of drawings
Fig. 1 is the structural representation of the counteract appearance under embodiment of the utility model.
The specific embodiment
The embodiment of the utility model will describe with reference to accompanying drawing.In Figure of description, element or device with similar structures or function will be used the components identical symbolic representation.Accompanying drawing for the ease of each embodiment of explanation the utility model, is not to carry out the explanation of exhaustive to the utility model just, neither limit scope of the present invention.
In an embodiment of the utility model, rotating disk 1 is arranged in the microwave dissolver, and one or more counteracting tanks are placed on the rotating disk.Master control airtight digestion jar 2 is connected with pressure sensor 3; Pressure sensor 3 comprises piezo-electric crystal 31; Piezo-electric crystal 31 is installed in master control airtight digestion jar 2 tops through being threaded, be connected with the temperature and pressure terminal box 6 that is installed in furnace chamber 7 tops through shielded cable 32 simultaneously.Thereby temperature and pressure terminal box 6 is transferred to the furnace chamber outside with pressure signal.Master control airtight digestion jar 2 also is connected with temperature sensor 4, and temperature sensor 4 is arranged on the top of master control airtight digestion jar 2, is connected with temperature and pressure terminal box 6 through shielded cable 41.Those skilled in the art can understand that the temperature and pressure sensor also can be arranged on other position of master control airtight digestion jar, like the bottom, can be suitable for as long as can accurately measure jar mode of confidential reference items numerical value.Simultaneously; Piezo-electric crystal is installed in the bottom or the top of master control airtight digestion jar 2, records the pressure in the master control airtight digestion jar 2 indirectly, and is thoroughly isolated with sample in the master control airtight digestion jar 2; Therefore, fundamentally eliminate master control airtight digestion jar 2 and used the cross pollution of inner sample afterwards repeatedly.
The temperature and pressure terminal box 6 at furnace chamber 7 tops is arranged in the rotating shaft that can rotate freely; Rotating disk 1 is supported by rotary tray motor 8; Thereby rotary tray motor 8 can drive rotating disk 1 along rotating clockwise or counterclockwise; Be with master control airtight digestion jar 2 to rotate together along rotating disk 1 clockwise or rotation counterclockwise, master control airtight digestion jar 2 is through shielded cable 32 and 6 rotations of shielded cable 41 drive temperature and pressure terminal boxes.Like this, because towards the rotation of direction, middlely do not pause, optimized the uniformity that sample is accepted microwave energy, the quality of clearing up of sample is improved.
After rotating disk and temperature and pressure measure and control device rotate toward the direction; The length of temperature and pressure measurement and control cable is reduced to about 150mm by original 400-600mm; Thereby avoided between the cable twining mutually, worn and torn and fracture, eliminated the disadvantage of bringing because of measurement and control cable is long.
In another embodiment; Temperature and pressure terminal box 6 can also be arranged on the center of rotating disk 1; Like this; When the technical staff attempted to monitor more counteracting tank, the temperature and pressure terminal box 6 that is installed in rotating disk 1 center can be admitted more shielded cable, held the limited problem of number of cables thereby solved a temperature and pressure terminal box.
Rotary tray motor 8 can be threephase asynchronous machine, stepper motor, servomotor etc., all can use as long as can guarantee to make rotating disk to stablize motor rotating along a direction, and this just greatly reduces the requirement to motor.
Though more than described the specific embodiment of the utility model, it will be understood by those of skill in the art that these only illustrate, the protection domain of the utility model is limited appended claims.Those skilled in the art can make numerous variations or modification to these embodiments under the prerequisite of principle that does not deviate from the utility model and essence, but these changes and modification all fall into the protection domain of the utility model.
Claims (8)
1. a microwave dissolver comprises rotating disk and is placed on the counteracting tank on the rotating disk, and it is characterized in that said counteracting tank top is provided with the temperature and pressure terminal box that can rotate freely, counteracting tank is provided with sensor, and said sensor is connected with the temperature and pressure terminal box.
2. microwave dissolver as claimed in claim 1 is characterized in that, said temperature and pressure terminal box and counteracting tank top articulate.
3. according to claim 1 or claim 2 microwave dissolver is characterized in that said sensor comprises temperature sensor and/or pressure sensor.
4. microwave dissolver as claimed in claim 3 is characterized in that said pressure sensor comprises a piezo-electric crystal, and said piezo-electric crystal is installed in the top of counteracting tank.
5. microwave dissolver as claimed in claim 4 is characterized in that, said piezo-electric crystal and counteracting tank are through being threaded.
6. according to claim 1 or claim 2 microwave dissolver is characterized in that, said sensor is connected with the temperature and pressure terminal box through shielded cable.
7. microwave dissolver as claimed in claim 3 is characterized in that, said temperature and pressure terminal box is rotated in company with rotating disk toward the direction.
8. according to claim 1 or claim 2 microwave dissolver is characterized in that said counteracting tank quantity is a plurality of.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011203335672U CN202290028U (en) | 2011-09-06 | 2011-09-06 | Microwave digestion instrument |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011203335672U CN202290028U (en) | 2011-09-06 | 2011-09-06 | Microwave digestion instrument |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202290028U true CN202290028U (en) | 2012-07-04 |
Family
ID=46359011
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011203335672U Expired - Lifetime CN202290028U (en) | 2011-09-06 | 2011-09-06 | Microwave digestion instrument |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202290028U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102423676A (en) * | 2011-09-06 | 2012-04-25 | 黄庭国 | Microwave digestion instrument |
-
2011
- 2011-09-06 CN CN2011203335672U patent/CN202290028U/en not_active Expired - Lifetime
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102423676A (en) * | 2011-09-06 | 2012-04-25 | 黄庭国 | Microwave digestion instrument |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| ASS | Succession or assignment of patent right |
Owner name: XINYI MICROWAVE CHEMISTRY TECH CO., LTD. Free format text: FORMER OWNER: HUANG TINGGUO Effective date: 20141223 |
|
| C41 | Transfer of patent application or patent right or utility model | ||
| COR | Change of bibliographic data |
Free format text: CORRECT: ADDRESS; FROM: 200230 XUHUI, SHANGHAI TO: 200235 XUHUI, SHANGHAI |
|
| TR01 | Transfer of patent right |
Effective date of registration: 20141223 Address after: 200235 Shanghai city Xuhui District Guanshengyuan Road No. 227 South third floor Patentee after: Xinyi Microwave Chemistry Tech Co., Ltd. Address before: 200230, room 20, No. 1023, Lane 1607, two South Road, Zhongshan, Shanghai, Xuhui District Patentee before: Huang Tingguo |
|
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20120704 |