CN202362270U - In-line pH value detector - Google Patents
In-line pH value detector Download PDFInfo
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- CN202362270U CN202362270U CN2011204087580U CN201120408758U CN202362270U CN 202362270 U CN202362270 U CN 202362270U CN 2011204087580 U CN2011204087580 U CN 2011204087580U CN 201120408758 U CN201120408758 U CN 201120408758U CN 202362270 U CN202362270 U CN 202362270U
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Abstract
The utility model discloses an in-line pH value detector which comprises a glass electrode (01), a motor (15), an electrode lifting system, a measurement control system, an upper and lower limited Hall switch and an electrode cleaning system, wherein the glass electrode (01) is arranged at the lower end of an electrode assembly tube (12); an electrode signal lead wire (30) is arranged at the upper end of the electrode assembly tube (12), and is connected to the measurement control system; the motor is connected with the electrode lifting mechanism through a transmission mechanism; and the motor lifting mechanism comprises a rack shaft, a rack and a lifting chute (47). The detector is characterized in that: the upper end of the electrode assembly tube (12) is provided with a limit adjustment base (34) and a limit adjustment bolt (32); and the lifting chute (47) is arranged in an electrode lifting tube (28), and corresponds to the limit adjustment base (34) and the limit adjustment bolt (32) from top to bottom. The device has the advantages of low manufacturing cost, lighter weight compared with the conventional equipment, good measurement effect and more complete electrode cleaning effect.
Description
Technical field
The utility model relates to a kind of instrument of measuring acidity, particularly adopts glass electrode to detect the instrument of pH value of solution.
Technical background
At present; PH value to raw material and product detects and controls; It is the important control parameter of industries such as chemical industry, light industry, food, environmental protection; And be the method comparatively accurately of generally acknowledging with the pH value that glass electrode is measured solution, to the online automatic detection of pH value with monitor and become indispensable technology measure in the modern production.Yet; If glass electrode is put in the medium detection time into and grown, the impurity in the medium can form certain incrustation on glass electrode, and kation gathers; Cause measurement data inaccurate and unstable; Thereby, influence the whole production flow process, for a long time because of automatic control accuracy difference causes poor reliability not use; People to the measurement of pH general adopt glass electrode immersed take out after solution is measured a period of time, sampling and measuring was for the second time again after water cleaned the glass electrode of acidometer with acid then.The weak point of such way is can not continuous coverage, causes the chemical reaction can not stepless control, has influenced the production of product.The inventor improved this measuring method afterwards, and had applied for Chinese patent, had at the pH of first to file value automatic detection device:
1. Chinese patent, notification number: CN201000445, title: pH value on-line automatic detection device; Its control arm is fixed into one to electrode guide rod and rack shaft, tooth bar; The electrode lower end of the guide rod is equipped with glass electrode, and rack shaft connects tooth bar, and the V-structure on the tooth bar and the V-type groove that is fixed on the guide holder on the body are each other movingly; Tooth bar moves up and down under the driving of motor and pinion wheel, is contained in glass electrode on the electrode guide rod also along with moving up and down.Changing direction spiral groove body is equipped with in the control lever upper end; Acid bezel is equipped with in the lower end; Have the break-in helicla flute on the changing direction spiral groove body, guide pin is housed on the control arm, guide pin moves up and down along with tooth bar and in the break-in helicla flute, slides; Make acid bezel change direction, detect or promote back in the body and clean so that glass electrode can put in the sampling groove.Such structure can make the glass electrode circulation detect and clean according to computer instruction, and it is accurate, stable to keep detecting data, for the on-line automatic control of pH value provides technical guarantee.
2. Chinese patent, notification number: CN201307099, title: a kind of pH glass electrode full-automatic detection apparatus; Comprise electrode, motor, rise fall of electrodes system, Measurement and Control System, spacing Hall switch, sampled measurements chamber and electrode purging system up and down; Electrode is installed in lower end of the guide rod, and the guide rod upper end has contact conductor to pick out to Measurement and Control System, and motor is through gear train connection electrode elevating mechanism; The chevron shaped groove of changing direction spiral groove body is pinned interactive the cooperation with the break-in on the linking arm; Liquid barrier is equipped with in the control lever lower end, and the below of changing direction spiral groove body is provided with and prevents that electrode from chewing the electrode that bumps and damage electrode with liquid barrier and hydrojet and moving up and down the chute body in motion process, and liquid barrier also is fixed on electrode and moves up and down chute body bottom; Protected electrode better; The electrode purging system is installed in the pick-up unit bottom, is made up of cleaning fluid storage tank, infusion pump and spray nozzle, and the electrode purging system just can be controlled fully automatically.
3. Chinese patent; Notification number: CN102103120, title: a kind of full-automatic detection device of double-glass pH electrode comprises A, two groups of glass electrodes of B, motor, rise fall of electrodes system, Measurement and Control System, spacing Hall switch and electrode purging system up and down; Electrode is installed in the electrode container lower end; The electrode container upper end has contact conductor to pick out to Measurement and Control System, and motor is through gear train connection electrode elevating mechanism, and electrode lifting mechanism comprises guide holder, linking arm, rack shaft and tooth bar; Guide holder is fixed on the body, it is characterized in that: the electrode container top is installed and is guaranteed electrode and the non-wiping pressure cylinder handwheel of lead; Coulisse to the changing direction spiral groove body below improves, and becomes double flute by original single groove structure; Install retaining acid lid additional at electrode container, when the electrode bottom is installed and is prevented that electrode from move with electrode container about with swing up and down and the sealed electrical cartridge, keep the locating ring of the long-term drying of electrode tip; Keep off sour glass top mounting plate, fixed head tightens up with register pin.
Through production practices in a few years; The inventor finds that also there are some problems in present pH value checkout equipment: 1, adopt two glass electrodes that the pH value of acid-base solution is detected; Basically, automatic detection and control have been solved in domestic sugar refinery with operation; But its complex structure, price is higher, can not satisfy the requirement of vast medium and small sized enterprises.2, the equipment in past be mostly to adopt single clean to chew glass electrode is cleaned, therefore, can't accomplish that to glass electrode comprehensive cleaning is complete.3. the equipment of passing by is provided with support and sampling groove more, and electrode detects the acid-base solution sample through the groove of deeply sampling, and support and sampling groove have increased the volume and weight of entire equipment; Make the equipment mobility variation; Simultaneously, after the long-term use of equipment, the sampling groove can sink to the bottom a large amount of impurity; The user has to regularly clean the sampling groove, has increased the workload of follow-up cleaning.
The utility model content
The technical scheme that the utility model will solve provides a kind of direct insertion pH value detection device; The pH glass electrode price that can overcome the above-mentioned detection device existence is high, pH utmost point pipe is broken by hard thing easily; Clean not exclusively, mobility is poor, have weak point such as follow-up cleaning; Thereby improve the performability of equipment, realize the low cost of pH electrode inspector, high efficiency purpose.
The direct insertion pH value detection device of the utility model; Comprise glass electrode, motor, rise fall of electrodes system, Measurement and Control System, spacing Hall switch box electrode purging system up and down, glass electrode is installed in electrode mounting pipe lower end, and electrode mounting pipe upper end has the electrode signal lead to pick out to Measurement and Control System; Motor is through gear train connection electrode upgrading mechanism; The motor elevating mechanism comprises rack shaft, tooth bar, up-down chute, and electrode tube mounting pipe upper end has been equipped with spacing adjusting base and spacing regulation cock, and the up-down chute is arranged in the rise fall of electrodes pipe; Corresponding from top to bottom with spacing adjusting base and spacing regulation cock; When rise fall of electrodes, spacing adjusting base contacts with the up-down chute, and the electrode mounting pipe can arbitrarily not rotated at the rise fall of electrodes conduit; Can only move up and down along up-down chute direction, make radially position-limiting action of electrode mounting pipe.
In the described direct insertion pH value detection device of the utility model; As technological improvement further; Electrode mounting pipe top is provided with the electrode mounting pipe gland of electrode signal lead fixed and PG sealing adaptor; The bottom is provided with electrode sheath, lower end O-ring seal, sealing sheath, upper end O-ring seal, and electrode mounting pipe gland compresses electrode and presses pipe, electrode connection head, upper end O-ring seal, sealing sheath and lower end O-ring seal to protect on the part to electrode when tightening the electrode mounting pipe, and electrode protects part and is fixedly mounted on the electrode mounting pipe; Again the PG sealing adaptor is tightened, make electrode mounting pipe inner space and space outerpace form sealing.
In the described direct insertion pH value detection device of the utility model; As technological improvement further; The electrode purging system comprises: external scavenging pump, cleaning chambers, preceding cleaning are chewed, the back is cleaned and chewed and wash liquid stream siphunculus road; Be provided with the cleaning chambers view window in the cleaning chambers, following cleaning fluid guide plate and electrode protection pipe are provided with the wash liquid stream through hole, and preceding cleaning is chewed, the back is cleaned and chewed and can clean electrode more complete; Viewing glass is a clear glass, the cleaning performance in the time of can observing electrode from the outside and clean in the cleaning chambers inner space, and cleaning fluid can not be splashed to the outside by the cleaning chambers view window again when electrode cleans.
Original with the utility model people " two glass electrode pH value automatic detection device " compared with " pH glass electrode automatic detection device " several patents, and outstanding substantive distinguishing features and the obvious improvement of the utility model is:
One, detection mode has been made change; By the original fixedly support that passes through; Glass electrode stretches into the sampling groove acid solution is carried out testing; Change into and equipment is directly inserted acid solution detect, its effect is: 1, simplified the volume and weight of integral device behind the equipment, the mobility 2, the user that have increased equipment have removed the work of follow-up cleaning sampling groove from; 3, make the cost price of equipment reduce.
Two, the electrode mounting pipe gland of the electrode mounting pipe gland on electrode mounting pipe top and PG sealing adaptor and bottom and PG sealing adaptor make electrode mounting pipe inner space and space outerpace form sealing, have avoided electrode signal lead and inner member to receive the influence of acid solution or other unfavorable factors.
Three, two cleanings are set and chew in the electrode purging systems, make cleaning of electrode more thorough fully.
Description of drawings
Fig. 1 is the direct insertion pH value detection device general assembly drawing of the utility model.
Fig. 2 is direct insertion pH value detection device structural representation.
01-electrode 02-electrode protects part
03-lower end O-ring seal 04-sealing sheath
05-upper end O-ring seal 06-electrode connection head
The 07-electrode is pressed pipe 08-electrode protection pipe
Clean before the 09-cleaning chambers 10-and chew
Clean behind the 11-and chew 12-electrode mounting pipe
13-transmission case 14-motor gear
Hall switch pressing plate under the 15-motor 16-
Hall switch 18-installs screw one under the 17-
19-installing plate 20-body outer tube
21-installs screw two 22-and goes up the Hall switch pressing plate
The last Hall switch 24-of 23-top box lid
25-cleaning fluid conducting elbow 26-cleaning fluid interface
27-top box shell 28-rise fall of electrodes conduit
29-setting height(from bottom) adjustment screw 30-electrode signal lead
The spacing regulation cock of 31-PG sealing adaptor 32-
The spacing adjusting base of 33-electrode mounting pipe gland 34-
35-transmission case upper plate 36-goes up cleaning liquor pipe
37-transmission case lower plate 38-goes up the cleaning fluid guide plate
39-lifter rack 40-viewing glass pressure ring
41-cleaning chambers view window 42-viewing glass
Cleaning fluid guide plate under the cleaning liquor pipe 44-under the 43-
45-cleaning fluid latus rectum 46-goes up the Hall switch gib screw
47-up-down chute 48-goes up the Hall switch gib screw
The spacing regulation cock gib screw of 49-50-motor gib screw
Embodiment
As shown in the figure; The direct insertion pH value detection device of the utility model comprises glass electrode; Electrode 01 be provided with lower end O-ring seal 03, sealing sheath 04 and upper end O-ring seal 05; Electrode 01 presses pipe 07 to be connected successively with motor connector lug 06, electrode, and is mounted in the electrode mounting pipe 12, and electrode protects the bottom that part 02 is installed in electrode mounting pipe 12; The 08th, the electrode protection pipe cleans before being provided with in the cleaning chambers 09 and chews 10, the back is cleaned and chewed 11, goes up cleaning fluid guide plate 38, cleaning fluid guide plate 44, viewing glass pressure ring 40, cleaning chambers view window 41, viewing glass 42 down; The 13rd, transmission case, in be provided with motor 15 and motor gear 14; Electrode mounting pipe 12 is passed electrode protection pipe 08, cleaning chambers 09, transmission case 13 and rise fall of electrodes conduit 28; Its lifter rack 39 and 14 couplings of electrode gear; Electrode mounting pipe 12 tops are provided with electrode mounting pipe gland 33 and PG sealing adaptor 31; It can press the electrode signal lead of pipe 07 to compress connection electrode, and after compressing, electrode mounting pipe 12 inner spaces and space outerpace form sealing; The 16th, following Hall switch pressing plate, the 17th, following Hall switch, the 19th, installing plate after its locking is installed screw 1 and screw 2 21 is installed, can be installed to body fuselage 20 on the installation site of in-site measurement point; The 22nd, last Hall switch pressing plate, the 23rd, last Hall switch; The 24th, top box lid can be turned round on the top box shell 27, and 24 effects of top box lid are to prevent that large piece article from falling in the rise fall of electrodes conduit 28 of pick-up unit; Cleaning fluid interface 26 is connected with external scavenging pump, cleaning fluid through cleaning fluid interface 26, the logical elbow 25 of cleaning liquor pipe, go up cleaning liquor pipe 36, go up cleaning fluid guide plate 38, down cleaning liquor pipe 43, clean before the cleaning latus rectums in the cleaning fluid guide plate 44 reach down chew 10 and the back clean and chew 11; The spacing adjusting seat end 34, be fixedly mounted on the electrode mounting pipe 12 with spacing regulation cock 32, is provided with the up-down chute 47 of correspondence position with it in the rise fall of electrodes pipe 28.
To protect part 02, lower end O-ring seal 03, sealing sheath 04 and upper end O-ring seal 05 role be sealed electrical cartridge 01 to electrode in this device; Cooperate with electrode mounting pipe gland 33 and PG sealing adaptor 31 simultaneously; Make electrode mounting pipe 12 inner spaces and space outerpace form sealing, play protection inner member and the complete effect of transmission signals.
Up-down chute 47 can make spacing adjusting base 34 and spacing regulation cock 32 reach outside the rise fall of electrodes conduit 28 to press close to following Hall switch 17 with last Hall switch 23 in this device; And when electrode 01 goes up and down; Spacing adjusting base 34 contacts with up-down chute 47; Electrode mounting pipe 12 can arbitrarily not rotated at rise fall of electrodes conduit 28, can only move up and down, make radially position-limiting action of electrode mounting pipe 12 along up-down chute 47 directions.
The electrode purging system of the utility model comprises that external scavenging pump, cleaning chambers 09, preceding cleaning chew 10, the back is cleaned and chewed 11 and wash liquid stream siphunculus road; Preceding cleaning chews 10, the back cleaning chews 11 can be so that electrode tube cleans more thoroughly; Cleaning chambers 09 outer being provided with cleaned view window 41, and its effect is that cleaning fluid is splashed to outside the body when preventing cleaning electrode, and cleaning view window 41 is glass material manufacturings; Can see through the cleaning situation that sight glass 42 is observed electrode during the device long journey; The slot of one installation viewing glass 42 is arranged at cleaning chambers view window 41 tops during installation, earlier viewing glass 42 is inserted on the cleaning chambers view window 41 by cleaning chambers view window 41 top slots, reverses viewing glass pressure ring 40 again; Make protrusion on the viewing glass pressure ring 40 partly aim at the groove of cleaning chambers view window 41; And will examine glass pane pressure ring 40 protrusion and partly be pressed onto on the groove of washing chamber view window 41, viewing glass 42 can not dropped, viewing glass 42 installations like this.
The surveying work process and the principle of the direct insertion pH value detection device of the utility model are following:
Earlier electrode 01 is installed in electrode mounting pipe 12, electrode protection pipe 08 directly is inserted in the solution that needs to detect.Cleaning fluid interface 26 docks with external scavenging pump through water pipe.
When electrode 01 needs to measure; Host computer sends for motor 15 and clockwise rotates signal; Motor 15 is being with motor gear 14 to clockwise rotate; Through the drive connection of motor gear 14 with lifter rack 39, electrode 01, electrode protect part 02, lower end O-ring seal 03, sealing sheath 04, upper end O-ring seal 05, electrode connection head 06, electrode pressure pipe 07, electrode mounting pipe 12, electrode mounting pipe gland 33, PG sealing adaptor 31, spacing adjusting base 34 and spacing regulation cock 32 and all follow lifter rack 39 to move downward together, when spacing regulation cock 32 aligns with following Hall switch 17; Host computer receives down the signal of Hall switch 17; And send motor 15 stop signals, and at this moment electrode 01 drops to electrode protection pipe 08 bottom, and electrode begins to detect the solution that needs measurement.
When electrode 01 needs to clean; Host computer sends for motor 15 and rotates counterclockwise signal; Motor 15 is being with motor gear 14 to rotate counterclockwise; Through the drive connection of motor gear 14 with lifter rack 39, electrode 01, electrode protect part 02, lower end O-ring seal 03, sealing sheath 04, upper end O-ring seal 05, electrode connection head 06, electrode pressure pipe 07, electrode mounting pipe 12, electrode mounting pipe gland 33, PG sealing adaptor 31, spacing adjusting base 34 and spacing regulation cock 32 and all follow lifter rack 39 to move upward together, when spacing regulation cock 32 aligns with last Hall switch 23; Host computer receives the signal of Hall switch 23; And send motor 15 stop signals, at this moment electrode 01 rises in the cleaning chambers 09, and electrode 01 measure portion and preceding cleaning are chewed 10 and cleaned with the back and to chew 11 and align.
After electrode 01 rises to assigned address; Host computer is (external to scavenging pump; Not on pick-up unit) send enabling signal; The scavenging pump operation; Cleaning fluid by the scavenging pump pump to cleaning fluid interface 26 again through cleaning fluid conducting elbow 25, go up cleaning liquor pipe 36, go up cleaning fluid guide plate 38, down cleaning liquor pipe 43, clean before the cleaning fluid latus rectums 45 in the cleaning fluid guide plate 44 arrive down chew 10 and the back clean and chew 11, cleaning fluid is chewed 10 by cleaning again and is cleaned with the back and to chew 11 and be ejected into and clean on electrode 01 measure portion, cleaning fluid is directly flowed out by the through hole of cleaning fluid guide plate 44 and electrode protection pipe 08 down.
The length of electrode scavenging period and Measuring Time can be provided with on host computer; After scavenging period arrived, host computer sent stop signal to scavenging pump, motor 15 is sent clockwise rotate signal simultaneously; Make electrode 01 drop to the measuring position, the solution that electrode pair need be measured is measured.
Claims (3)
1. direct insertion pH value detection device; Comprise glass electrode (01), motor (15), rise fall of electrodes system, Measurement and Control System, spacing Hall switch and electrode purging system up and down; Glass electrode (01) is installed in electrode mounting pipe (12) lower end; Electrode mounting pipe (12) upper end has electrode signal lead (30) to pick out to Measurement and Control System; Motor is through gear train connection electrode elevating mechanism, and the motor elevating mechanism comprises rack shaft, tooth bar, up-down chute (47), it is characterized in that: described electrode tube mounting pipe (12) upper end is equipped with spacing adjusting base (34) and spacing regulation cock (32); Up-down chute (47) is arranged at (28) in the rise fall of electrodes pipe, and is corresponding from top to bottom with spacing adjusting base (34) and spacing regulation cock (32).
2. direct insertion pH value detection device according to claim 1; Its characteristics are: described electrode mounting pipe top is provided with the electrode mounting pipe gland (33) of electrode signal lead fixed and PG sealing adaptor (31), and the bottom is provided with electrode and protects part (02), lower end O-ring seal (03), sealing sheath (04), upper end O-ring seal (05) and electrode connection head (06).
3. direct insertion pH value detection device according to claim 1; Its characteristics are: said electrode purging system comprises: (10) are chewed in external scavenging pump, cleaning chambers (09), preceding cleaning, the back is cleaned and chewed (11) and wash liquid stream siphunculus road; Be provided with cleaning chambers view window (41) in the cleaning chambers, following cleaning fluid guide plate (44) and electrode protection pipe (08) are provided with the wash liquid stream through hole.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011204087580U CN202362270U (en) | 2011-10-25 | 2011-10-25 | In-line pH value detector |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011204087580U CN202362270U (en) | 2011-10-25 | 2011-10-25 | In-line pH value detector |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202362270U true CN202362270U (en) | 2012-08-01 |
Family
ID=46573448
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011204087580U Expired - Fee Related CN202362270U (en) | 2011-10-25 | 2011-10-25 | In-line pH value detector |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202362270U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102507700A (en) * | 2011-10-25 | 2012-06-20 | 钦州华成自控设备有限公司 | Direct insertion type pH value detector |
| CN102967640A (en) * | 2012-11-14 | 2013-03-13 | 钦州华成自控设备有限公司 | Single electrode detection device for floating separation |
-
2011
- 2011-10-25 CN CN2011204087580U patent/CN202362270U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102507700A (en) * | 2011-10-25 | 2012-06-20 | 钦州华成自控设备有限公司 | Direct insertion type pH value detector |
| CN102507700B (en) * | 2011-10-25 | 2014-07-16 | 钦州华成自控设备有限公司 | Direct insertion type pH value detector |
| CN102967640A (en) * | 2012-11-14 | 2013-03-13 | 钦州华成自控设备有限公司 | Single electrode detection device for floating separation |
| CN102967640B (en) * | 2012-11-14 | 2014-04-09 | 钦州华成自控设备有限公司 | Single electrode detection device for floating separation |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20120801 Termination date: 20121025 |