CN206990493U - A kind of dissolved oxygen measuring device - Google Patents
A kind of dissolved oxygen measuring device Download PDFInfo
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- CN206990493U CN206990493U CN201720982773.3U CN201720982773U CN206990493U CN 206990493 U CN206990493 U CN 206990493U CN 201720982773 U CN201720982773 U CN 201720982773U CN 206990493 U CN206990493 U CN 206990493U
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- water sample
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- dissolved oxygen
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Abstract
The utility model discloses a kind of dissolved oxygen measuring device, the dissolved oxygen meter that including lower end be sound end, upper end is digital display end, wherein, also include the test glass with water inlet and delivery port, dissolved oxygen meter is worn on the cup top for being locked in test glass by itself stage casing, sound end is enclosed in test glass, digital display end is outside test glass, water inlet is opened in the bottom of a cup of test glass, and delivery port is opened on the wall of cup of test glass side, the horizontal level top that the horizontal level where delivery port is in where sound end.Compared with prior art, the utility model is simple in construction, installation cost is low, less energy consumption, space hold is few, specifically, water inlet, which is located at test glass bottom of a cup, delivery port is located at the cup side of test glass can ensure that the electrode of dissolved oxygen meter sound end is totally submerged and contacted in the sample and not with the oxygen in air, therefore disclosure satisfy that the requirements needed for electrochemical process dissolved oxygen meter test sample, so as to improve the stability of detection.
Description
Technical field
It the utility model is related to dissolved oxygen sensing field, more particularly to a kind of dissolved oxygen measuring device.
Background technology
It is known in the industry, by electrochemical process dissolved oxygen meter test sample, there are strict requirements to all many-sides, it is simple next
Do, it is necessary to meet following condition：Electrode probe is immersed into sample, it is impossible to be free bubble entrapment on the film of probe, stop enough
Time, reading when probe temperature and water temperature reach balance and numerical monitor is stable；During the film contact sample of probe, sample will
Keep certain flow velocity（>=0.3 meter per second）, the dissolved oxygen in the position sample is consumed with the film Contact for preventing and popping one's head in
To the greatest extent, reading is fluctuated, in addition, the test for dispersed sample, also needs to adjust typically using magnetic stirring apparatus, during measurement
Mixing speed, reach reading and balance and keep stable.And conventional five parameters in existing monitoring water quality on line system（Temperature,
PH value, turbidity, dissolved oxygen, electrical conductivity）Monitoring instrument, the flow cell of a water sample water storage is typically shared, by water dispensing unit point
The water sample matched somebody with somebody is directly entered five parameter water distribution flow cells without any processing, to ensure required for the test of electrochemical process dissolved oxygen meter
Flow velocity, magnetic stirring apparatus such as is used, then require that the power of agitator is big, in this way, cost is higher and magnetic stirring apparatus adjustment turns
When fast, stirrer, which is possible to encounter electrode, causes instrument damage, such as use paddle agitator, then has that installation is complicated, takes sky
Between it is larger, safeguard it is inconvenient the shortcomings of.
Utility model content
In view of this, technical problem to be solved in the utility model is：Offer one kind is simple in construction, cost is relatively low and energy
Meet the requirements needed for electrochemical process dissolved oxygen meter test sample, so as to improve electrochemical process dissolved oxygen meter detection stability
Dissolved oxygen measuring device.
In order to achieve the above object, the utility model adopts the following technical scheme that to realize：
A kind of dissolved oxygen measuring device, including the dissolved oxygen meter that lower end is sound end, upper end is digital display end, wherein, in addition to
Test glass with water inlet and delivery port, the dissolved oxygen meter are worn on the cup top for being locked in the test glass by itself stage casing, visited
Head end is enclosed in the test glass, digital display end is exposed to outside the test glass, and the water inlet is opened in the bottom of a cup of the test glass,
The delivery port is opened on the wall of cup of the test glass side, and the horizontal level where the delivery port is in the sound end institute
Horizontal level above.
Preferably, also include the ingress pipe being connected on the water inlet and the delivery line being connected on the delivery port, institute
Ingress pipe is stated in being connected with circulating pump by articulation on itself middle section position.
Preferably, also including to store the cistern of water sample, the cistern is provided with the lower fragment position of itself
Water sample introducing port and water sample export mouth, in the upper fragment position of itself it is provided with water sample refluxing opening and water sample overfall, the water sample
Horizontal level where export mouth is in above the horizontal level where the water sample introducing port, where the water sample overfall
Horizontal level is in above the horizontal level where the water sample refluxing opening, the ingress pipe be connected in the test glass water inlet and
Between the water sample export mouth of cistern, the delivery line be connected in the test glass delivery port and cistern water sample refluxing opening it
Between.
Preferably, the water sample introducing port and water sample export mouth are located on the heteropleural pool wall of the cistern, the water
Sample refluxing opening and water sample overfall are on the heteropleural pool wall of the cistern.
Preferably, the water sample introducing port and water sample overfall are located on the homonymy pool wall of the cistern, the water
Sample export mouth and water sample refluxing opening are on the homonymy pool wall of the cistern.
Preferably, the test glass is diameter 50mm, height 300mm circular stainless steel cup, the ingress pipe and export
Manage as a diameter of 20 mm pvc pipe, the circulating pump be rated power be 65W, standard output flow be 65L/min, lift is
2 meters of magnetic drive pump.
As shown from the above technical solution, the beneficial effects of the utility model are：
Compared with prior art, the utility model is simple in construction, installation cost is low, and less energy consumption, space hold is few, it is specific and
Speech, water inlet, which is located at test glass bottom of a cup, delivery port is located at the cup side of test glass can ensure that the electrode of dissolved oxygen meter sound end is totally submerged
Contacted in the sample and not with the oxygen in air, therefore disclosure satisfy that the items needed for electrochemical process dissolved oxygen meter test sample will
Ask, so as to improve the stability of detection.In addition, this practicality is also provided with circulating pump, allow its water sample flow velocity more
Accurately controlled circulating pump is connected on ingress pipe by articulation in the value range to be kept, dismantled and assembled, convenient maintenance,
Test glass is arranged to diameter 50mm, height 300mm circular stainless steel cup, ingress pipe and delivery line are arranged to a diameter of 20 mm
Pvc pipe, circulating pump be arranged to rated power be 65W, standard output flow be 65L/min, lift is 2 meters of magnetic drive pump, is made
It can keep the meter per second of water sample flow velocity about 0.55 in test glass, during actual test, preferably set the run time of magnetic drive pump
It is set to 20 minutes, after magnetic force pump startup, because water sample flow velocity is more than 0.3 meter per second and flow velocity is more stable, dissolved oxygen meter reading can be compared with
Balance soon and keep stable, magnetic drive pump connects pump housing impeller without power transmission shaft, so safeguard and maintenance workload is small, during type selecting
The magnetic drive pump for being adapted to flow can be selected according to the sectional area of test glass, it is possible to keep the sample flow velocity in test glass relatively stable,
It can make dissolved oxygen meter reading quick and stable without governing speed, it is easy to operate, suitable for the unattended operation environment of on-line monitoring.This
Outside, the utility model package unit cost is no more than 1,000 yuan, wherein about 500 yuan of magnetic drive pump purchase cost；Test glass is preferably by 304
Stainless steel tube is process, and plus articulation, pvc pipe etc., about 450 yuan of purchase cost, acquisition cost is low, simple in construction, space
Take few.
Brief description of the drawings
Fig. 1 is the structural representation of the utility model embodiment 1.
Fig. 2 is the structural representation of the utility model embodiment 2.
Fig. 3 is combined for the utility model with temperature monitor, pH value monitor, monitoring turbidimeter, monitored conductivity instrument should
With the reference chart of the conventional five parameter online systems of the water quality of composition.
1st, sound end；2nd, digital display end；
3rd, dissolved oxygen meter；4th, cup top；
5th, bottom of a cup；6th, wall of cup；
7th, ingress pipe；8th, delivery line；
9th, articulation；10th, circulating pump；
11st, cistern；12nd, water sample introducing port；
13rd, water sample export mouth；14th, water sample refluxing opening；
15th, water sample overfall；16th, water inlet；
17th, delivery port.
Embodiment
In order that those skilled in the art can be further understood that feature of the present utility model and technology contents, refer to
Down about detailed description of the present utility model and accompanying drawing.
Refer to shown in Fig. 1 to Fig. 2, the utility model provides a kind of dissolved oxygen measuring device, including lower end as probe
End 1, the dissolved oxygen meter 3 that upper end is digital display end 2, wherein, in addition to the test glass with water inlet 16 and delivery port 17, the dissolved oxygen meter
Worn by itself stage casing on the cup top 4 for being locked in the test glass, sound end is enclosed in the test glass, digital display end is exposed to institute
State outside test glass, the water inlet is opened in the bottom of a cup 5 of the test glass, and the delivery port is opened in the wall of cup of the test glass side
On 6, the horizontal level where the delivery port is in above the horizontal level where the sound end, include being connected in described in enter
Ingress pipe 7 on the mouth of a river and the delivery line 8 being connected on the delivery port, the ingress pipe on itself middle section position in passing through loose joint
First 9 are connected with circulating pump 10, in addition to store the cistern 11 of water sample, the cistern is provided with the lower fragment position of itself
Water sample introducing port 12 and water sample export mouth 13, in the upper fragment position of itself water sample refluxing opening 14 and water sample overfall 15 are provided with,
The horizontal level top that horizontal level where the water sample export mouth is in where the water sample introducing port, the water sample overflow
The horizontal level top that horizontal level where mouthful is in where the water sample refluxing opening, the ingress pipe are connected in the test glass
Between water inlet and the water sample export mouth of cistern, the water sample of delivery port and cistern that the delivery line is connected in the test glass returns
Between head piece, the water sample introducing port and water sample export mouth are on the heteropleural pool wall of the cistern, the water sample refluxing opening
With water sample overfall on the heteropleural pool wall of the cistern, the water sample introducing port and water sample overfall are located at the water storage
On the homonymy pool wall in pond, the water sample export mouth and water sample refluxing opening are on the homonymy pool wall of the cistern, the test glass
For diameter 50mm, height 300mm circular stainless steel cup, the ingress pipe and delivery line are a diameter of 20 mm pvc pipe, institute
State circulating pump be rated power be 65W, standard output flow be 65L/min, lift is 2 meters of magnetic drive pump.
But preferable possible embodiments of the present utility model are the foregoing is only, and are not used to limit to patent of the present utility model
Scope, therefore all equivalent structure changes made with the utility model specification and accompanying drawing content, are similarly included in this practicality
In new scope.
Claims (6)
1. a kind of dissolved oxygen measuring device, including lower end are sound end（1）, upper end be digital display end（2）Dissolved oxygen meter（3）, it is special
Sign is, in addition to has water inlet（16）And delivery port（17）Test glass, the dissolved oxygen meter wears sealing by itself stage casing
On the cup top of the test glass（4）Upper, sound end is enclosed in the test glass, digital display end is exposed to outside the test glass, the water inlet
Mouth is opened in the bottom of a cup of the test glass（5）On, the delivery port is opened in the wall of cup of the test glass side（6）On, the water outlet
The horizontal level top that horizontal level where mouthful is in where the sound end.
2. dissolved oxygen measuring device as claimed in claim 1, it is characterised in that also include the importing being connected on the water inlet
Pipe（7）With the delivery line being connected on the delivery port（8）, the ingress pipe on itself middle section position in passing through articulation（9）Even
There is circulating pump（10）.
3. dissolved oxygen measuring device as claimed in claim 2, it is characterised in that also include to store the cistern of water sample
（11）, the cistern is provided with water sample introducing port in the lower fragment position of itself（12）With water sample export mouth（13）, in itself
Upper fragment position is provided with water sample refluxing opening（14）With water sample overfall（15）, the horizontal level where the water sample export mouth is in
Above horizontal level where the water sample introducing port, the horizontal level where the water sample overfall is in water sample backflow
Above horizontal level where mouthful, the ingress pipe is connected between the water inlet of the test glass and the water sample export mouth of cistern,
The delivery line is connected between the delivery port of the test glass and the water sample refluxing opening of cistern.
4. dissolved oxygen measuring device as claimed in claim 3, it is characterised in that the water sample introducing port and water sample export mouth are set
In on the heteropleural pool wall of the cistern, the water sample refluxing opening and water sample overfall are located at the heteropleural pool wall of the cistern
On.
5. dissolved oxygen measuring device as claimed in claim 4, it is characterised in that the water sample introducing port and water sample overfall are set
In on the homonymy pool wall of the cistern, the water sample export mouth and water sample refluxing opening are located at the homonymy pool wall of the cistern
On.
6. the dissolved oxygen measuring device as any one of claim 2 to 5, it is characterised in that the test glass is diameter
50mm, height 300mm circular stainless steel cup, the ingress pipe and delivery line be a diameter of 20 mm pvc pipe, the circulation
Pump be rated power be 65W, standard output flow be 65L/min, lift is 2 meters of magnetic drive pump.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720982773.3U CN206990493U (en) | 2017-08-08 | 2017-08-08 | A kind of dissolved oxygen measuring device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720982773.3U CN206990493U (en) | 2017-08-08 | 2017-08-08 | A kind of dissolved oxygen measuring device |
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| Publication Number | Publication Date |
|---|---|
| CN206990493U true CN206990493U (en) | 2018-02-09 |
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ID=61418928
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| Application Number | Title | Priority Date | Filing Date |
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| CN201720982773.3U Active CN206990493U (en) | 2017-08-08 | 2017-08-08 | A kind of dissolved oxygen measuring device |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113866242A (en) * | 2021-08-20 | 2021-12-31 | 中国原子能科学研究院 | A flow-through cell for iodine-containing liquid return circuit online analysis of quality of water |
-
2017
- 2017-08-08 CN CN201720982773.3U patent/CN206990493U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113866242A (en) * | 2021-08-20 | 2021-12-31 | 中国原子能科学研究院 | A flow-through cell for iodine-containing liquid return circuit online analysis of quality of water |
| CN113866242B (en) * | 2021-08-20 | 2022-08-05 | 中国原子能科学研究院 | A flow-through cell for iodine-containing liquid return circuit online analysis of quality of water |
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