CN2746392Y - Heating thermostat of BOD microbial membrane sensor - Google Patents
Heating thermostat of BOD microbial membrane sensor Download PDFInfo
- Publication number
- CN2746392Y CN2746392Y CN 200420108913 CN200420108913U CN2746392Y CN 2746392 Y CN2746392 Y CN 2746392Y CN 200420108913 CN200420108913 CN 200420108913 CN 200420108913 U CN200420108913 U CN 200420108913U CN 2746392 Y CN2746392 Y CN 2746392Y
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- China
- Prior art keywords
- heating
- microbial membrane
- membrane sensor
- thermostat
- bod
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- Expired - Fee Related
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- Apparatus Associated With Microorganisms And Enzymes (AREA)
- Measuring Or Testing Involving Enzymes Or Micro-Organisms (AREA)
Abstract
The utility model relates to a heating thermostat of a BOD microbial membrane sensor, comprising a heating body and a thermostat. The heating thermostat of a BOD microbial membrane sensor is characterized in that the heating body is a columnar aluminum bar, and the surface of the heating body is provided with a screw type semicircular channel. A heating element and a temperature sensor are positioned inside the heating body, and a sampling tube is winded inside the semicircular channel. The thermostat is a thermostatic water bath cell with a heating element and a temperature sensing element which are arranged on the bottom of the thermostat. The inner part of the water bath cell is provided with a measuring cell and a microbial membrane sensor, and the exit of the measuring cell is connected with a peristaltic pump. The utility model is used for carry out double heating and thermal insulation to the measured water sample when rapidly measuring BOD. The heating thermostat of a BOD microbial membrane sensor can accurately control the measuring temperature within 25 degrees C-30 degrees C, in order to make the microbe have good activity and guarantee that the sensor measures accurately.
Description
Technical field
The utility model relates to a kind of experiment heating constant-temperature equipment, the heating constant-temperature equipment of detected water sample when measuring BOD in particular for the employing microbiological sensor.
Background technology
When adopting microbiological sensor that water sample is carried out the BOD measurement, microorganism has activity in certain temperature range, experimental results show that sensor has bigger response in the time of 25 ℃～35 ℃, and temperature is bigger to the influence of electrode, therefore generally will carry out heat tracing to detected water sample (comprising microbiological sensor).Insulation materials such as heating of many at present employing pipelines and wool felt are incubated, and its major defect is that heat time heating time is short, and non-uniform temperature is difficult to accurate temperature controlling, has the measured value fluctuation during experiment and reappears phenomenons such as poor, has a strong impact on measuring accuracy and stability.
The utility model content
The technical problems to be solved in the utility model provides that a kind of heat time heating time is abundant, and temperature is even, and temperature control is accurate, thereby effectively improves the BOD microbial membrane sensor heating constant-temperature equipment of measuring accuracy.
The technical solution of the utility model is: BOD microbial membrane sensor heating constant-temperature equipment, comprise calandria and thermostat, improvements are that described calandria is cylindrical aluminium bar, its surface has spiral half slot, inner porose, place heating element and temperature probe in the hole respectively, stopple coupon is in half slot, and described thermostat is the thermostatted water bathing pool that the bottom is provided with heating member and thermal detector.
In the such scheme, aluminium bar diameter 45～55mm, long 90～110mm; The heating element of placing in the aluminium bar is the heating wire of 50W; Place measuring cell and microbial membrane sensor in the thermostatted water bathing pool, the import of measuring cell with walk around aluminium bar spiral fluted stopple coupon and link to each other; The outlet of measuring cell links to each other with peristaltic pump.
In above scheme, adopt the method for twice heating and insulation that detected water sample is carried out heat tracing, whole measuring cell and microbiological sensor are carried out constant temperature, at first as calandria water sample is heated with aluminium bar, because the helical groove structure of aluminium bar, increased the length that stopple coupon contacts with aluminium bar, heat time heating time is long, secondly the aqueous sample stream that heated is heated once more and is incubated through the thermostatted water bathing pool, because the water in the sea water bath can be evenly distributed in around stopple coupon and the measuring cell, and temperature is even, the effect of temperature probe of aluminium bar and sea water bath bottom in addition, thus can accurate temperature controlling, thereby guaranteed biology sensor by constant on design temperature, keep 25 ℃～30 ℃, also just guaranteed measuring accuracy.
Description of drawings
Accompanying drawing is the utility model structure, annexation synoptic diagram.
Embodiment
As figure, on the periphery of the cylindrical aluminium bar 1 of φ 50mm * 100mm, be processed into the spiral half slot of φ 5, stopple coupon 2 is in half slot, and aluminium bar inside is porose, places heating wire 3 and the pt100 temperature sensor 7 of 50W in the hole respectively.The thermostat of using as post bake 10 is provided with heating member 8 and thermal detector 9, is provided with measuring cell 11 and microbial membrane sensor 5 in the sea water bath 4 of thermostat, and the import of measuring cell links to each other with stopple coupon, and outlet links to each other with peristaltic pump 6.
Claims (5)
1, a kind of BOD microbial membrane sensor heating constant-temperature equipment, comprise calandria and thermostat, it is characterized in that described calandria is cylindrical aluminium bar, its surface has spiral half slot, inner porose, place heating element and temperature probe in the hole respectively, stopple coupon is in half slot, and described thermostat is the thermostatted water bathing pool that the bottom is provided with heating member and thermal detector.
2, BOD microbial membrane sensor heating constant-temperature equipment according to claim 1 is characterized in that aluminium bar diameter 45～55mm, long 90～110mm.
3,, it is characterized in that the heating element of placing in the aluminium bar is the heating wire of 50W according to the BOD microbial membrane sensor heating constant-temperature equipment of claim 2.
4, BOD microbial membrane sensor heating constant-temperature equipment according to claim 1 is characterized in that placing in the thermostatted water bathing pool measuring cell and microbial membrane sensor, the import of measuring cell with walk around aluminium bar spiral fluted stopple coupon and link to each other.
5, BOD microbial membrane sensor heating constant-temperature equipment according to claim 4 is characterized in that the outlet of measuring cell links to each other with peristaltic pump.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200420108913 CN2746392Y (en) | 2004-11-19 | 2004-11-19 | Heating thermostat of BOD microbial membrane sensor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200420108913 CN2746392Y (en) | 2004-11-19 | 2004-11-19 | Heating thermostat of BOD microbial membrane sensor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2746392Y true CN2746392Y (en) | 2005-12-14 |
Family
ID=35582971
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200420108913 Expired - Fee Related CN2746392Y (en) | 2004-11-19 | 2004-11-19 | Heating thermostat of BOD microbial membrane sensor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2746392Y (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101000341B (en) * | 2006-12-29 | 2011-09-28 | 中国科学院长春应用化学研究所 | Sensor type on-line monitor of biochemical oxygen demand |
-
2004
- 2004-11-19 CN CN 200420108913 patent/CN2746392Y/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101000341B (en) * | 2006-12-29 | 2011-09-28 | 中国科学院长春应用化学研究所 | Sensor type on-line monitor of biochemical oxygen demand |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |