CN208224156U - A kind of gas analyzer shell and the gas analyzer using the shell - Google Patents
A kind of gas analyzer shell and the gas analyzer using the shell Download PDFInfo
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- CN208224156U CN208224156U CN201820589817.0U CN201820589817U CN208224156U CN 208224156 U CN208224156 U CN 208224156U CN 201820589817 U CN201820589817 U CN 201820589817U CN 208224156 U CN208224156 U CN 208224156U
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Abstract
The utility model provides a kind of gas analyzer shell and the gas analyzer using the shell, belong to gas analysis technology field, the sampling cavity for sensors configured is equipped in shell, shell is equipped with the air inlet and air outlet being connected to sampling cavity, the sensor support structure for being used to support sensor is equipped in the sampling cavity, sampling cavity includes the first balance portion being connected to for the air inlet with sensor and the second balance portion for being connected to for the gas outlet with sensor, and first balance portion is connected to the second balance portion.By the way that sampling cavity is divided into the first balance portion being connected to sensor air inlet and the buffer portion being connected to the gas outlet of sensor; and the two is made to keep connection; cause the air inlet side and the air outlet side pressure balance that make the sensor being placed in sampling cavity in tested gas free diffusing in the first balance portion and the second balance portion, solves the problems, such as to protect the method for electrochemical sensor complex in the prior art.
Description
Technical field
The utility model relates to gas analyzer shell and use the gas analyzer of the shell.
Background technique
Currently, gas analyzer is commonly used in the working environment for there are special requirement to a certain gas content, gas is being carried out
Before body analysis, generally requires and first gas is sampled and then gas sensor is recycled to analyze gas.
The utility model patent that Authorization Notice No. is CN206146910U, authorized announcement date is 2017.05.03 discloses one
Oxygen in kind of hydrogen, hydrogen detection device in oxygen, including hydrogen-oxygen purity transmitter, purity sensor, further include sensor holder, connector,
Locking nut, sensor holder are equipped with sensor sampling cavity for placing purity sensor, by connector by hydrogen-oxygen purity
Transmitter is connected to sensor sampling cavity, and the releasable connection of connector and sensor holder is realized in the setting of locking nut,
When needing repairing, purity sensor can be taken out and replace, still, gas purity sensor commonly uses electrochemistry
Sensor, the film in electrochemical sensor are easy to the pressure imbalance because of film two sides, cause electrochemical sensor
Damage.
The application for a patent for invention that application publication number is CN103698380A, data of publication of application is 2014.04.02 proposes one
Kind effectively extends the chemical trace amount oxygen analyzer of sensor service life, including air-channel system, sensing system, control system
System, power-supply system and display system, sensing system include the test chamber of sensor and accommodating sensor, test chamber be equipped with into
Port and gas outlet, air-channel system include main gas circuit and protection gas circuit, and protection gas circuit and main gas circuit are set side by side to be connected with test chamber
Logical air inlet and air outlet, in order to protect electrochemical sensor, the two sides of test chamber are equipped with through control system control
Solenoid valve, wherein test chamber constitutes sampling cavity and is opened when the pressure for detecting test chamber two sides is not reciprocity by control system
The solenoid valve of the lesser side of relative pressure and the solenoid valve for closing the biggish side of pressure, with electrochemical sensor for this into
Row protection.But chemical trace amount oxygen analyzer control is excessively complicated to the control of pressure, is not easy to implement.
Utility model content
The purpose of this utility model is to provide a kind of gas analyzer shells, to solve to protect electrochemistry in the prior art
The complex problem of the method for sensor；In addition, the purpose of this utility model, which also resides in, provides a kind of gas using the shell
Body analyzer.
To achieve the above object, the technical solution of the gas analyzer shell of the utility model is:
Gas analyzer shell, the interior sampling cavity being equipped with for sensors configured of shell, shell is equipped with and sampling cavity connects
Logical air inlet and air outlet, the sampling cavity is interior to be equipped with the sensor support structure for being used to support sensor, and sampling cavity includes
The first balance portion being connected to for the air inlet with sensor and the second balance portion being connected to for the gas outlet with sensor
Point, first balance portion is connected to the second balance portion.
The beneficial effects of the utility model are: by the way that sampling cavity to be divided into the be connected to sensor air inlet first balance
Part and the buffer portion being connected to the gas outlet of sensor, and the two is made to keep connection, cause flat first in tested gas
Make air inlet side and the gas outlet side pressure of the sensor being placed in sampling cavity in weighing apparatus part and the second balance portion when free diffusing
Dynamic balance solves the problems, such as to protect the method for electrochemical sensor complex in the prior art.
Further, in order to further improve the safety of sensor, the air inlet of the sampling cavity is arranged second
In the cavity wall of balance portion, balance under test gas before the air inlet for entering sensor via the second balance portion and first
Part avoids the higher under test gas of the pressure of the air inlet side of sensor holder from making to make under test gas reduce certain pressure
At the damage of sensor.
Further, in order to improve the buffering effect under test gas, the sensor support structure includes that setting is taking
For the support ring-shaped step with the support cooperation of the air outlet side of sensor in the cavity wall of sample chamber, the support ring-shaped step is surrounded
Second balance portion, the support ring-shaped step is equipped with the first balance portion of connection and the buffering of the second balance portion is logical
Road makes under test gas when entering the first balance portion from the second balance portion by narrow buffer channel, to be measured by reducing
The area of passage of gas is to reduce the pressure of the under test gas into the first balance portion.
Further, in order to facilitate processing, the buffer channel is the dashpot being arranged on support ring-shaped step, is used
The mode of fluting avoids opening up bending hole on support ring-shaped step, and processing technology is simpler.
Further, the shaking in order to avoid sensor in sampling cavity is additionally provided with for making to sample in the sampling cavity
The position limiting structure of the sidewall spacers setting of the cavity wall and sensor of chamber, the side wall and sampling cavity of sensor are avoided by position limiting structure
Cavity wall between collision, avoid the abrasion of the damage of sensor and the cavity wall of sampling cavity.
Further, in order to improve the protection to sensor, the position limiting structure includes being arranged in the cavity wall of sampling cavity
Limit elastic component, avoid the rigid contact between position limiting structure and sensor or the cavity wall of sampling cavity, and in sensor to taking
The impact when cavity wall of sample chamber is mobile by limit elastic component come buffer sensor to the cavity wall of sampling cavity.
Further, in order to avoid the disengaging installation site of limit elastic component, the limit elastic component is for being sleeved on
Flexible fastening circle on the side wall of sensor, the position limiting structure further include in the cavity wall for be arranged in sampling cavity for assembling elasticity
The fixation ring recess of retainer plate, the fixed ring recess include and the retainer plate cooperation section of flexible fastening circle limit cooperation and are connected to first
The retainer plate Connectivity Section of balance portion and the second balance portion, the groove depth and groove width of the retainer plate Connectivity Section, which are respectively greater than, fixes
The groove depth and groove width of circle cooperation section, fix flexible fastening circle by the way that fixed ring recess is arranged, and retainer plate Connectivity Section is arranged to connect
Logical first balance portion and the second balance portion, avoid position limiting structure from blocking the company of the first balance portion and the second balance portion
It is logical, and position limiting structure can make to keep certain interval flat to be connected to first between the cavity wall of sampling cavity and the side wall of sensor
Weighing apparatus part and the second balance portion, avoid the additional processing to the cavity wall of sampling cavity.
Further, in order to facilitate the processing of shell and the assembly of gas analyzer, the shell includes seperated removable
First shell and second shell, the retainer plate Connectivity Section are connected to the binding face of first shell and second shell, facilitate fixation
The processing of Connectivity Section is enclosed, and the assembly of the other components such as sensor is facilitated using seperated removable structure using shell.
Further, in order to reduce the difficulty of processing of shell, the sensor support structure includes being arranged in sampling cavity
For the probe of the air inlet side mounted in sensor to be connect and pushed up with sensor signal, popped one's head in by setting come pushing tow sensor,
The further processing to shell is avoided, and when using the sensor of different-thickness, the probe that can replace different length comes
It is adapted to sensor, improves the versatility of shell.
Further, in order to avoid the shaking of sensor, the sensor support structure further includes for installing probe
Probe socket and be arranged between probe and probe socket with to probe apply pressure make pop one's head in jam sensor elastic component, by setting
It sets elastic component to carry out elastic press to sensor, avoids the shaking of sensor.
Further, in order to improve the stability of probe, the probe is slidedly assemblied in spy on the press direction of probe
On headstock, probe bending when being pressed sensor is avoided, the press effect of probe is influenced.
Further, for the ease of practical operation, the signal wire being additionally provided on the sampling cavity for probe stretches out sampling cavity
Sampling hole, encapsulating has the seal for sealing sampling hole at the sampling hole, and the probe socket is inlaid in seal, just
It is connected in signal wire with the other equipment outside sensor holder, also, keeps probe socket relatively fixed with shell, improve probe press fitting
Stability.
Further, for the ease of practical operation, the signal wire being additionally provided on the sampling cavity for sensor stretches out sampling
The sampling hole of chamber, encapsulating has the seal for sealing sampling hole at the sampling hole, outside signal wire and sensor holder
Other equipment connection.
Further, in order to improve the stability of sealing, the hole wall of the sampling hole is equipped with block groove, and block is recessed
The groove sidewall of slot cooperates on the axis direction of sampling hole with seal block, and sealing structure is avoided to deviate to sample from sampling hole
Chamber.
The technical solution of the gas analyzer of the utility model is:
Gas analyzer includes sensor and gas analyzer shell, and the sampling cavity of sensors configured, shell are equipped in shell
Body is equipped with the air inlet and air outlet being connected to sampling cavity, and the sensor support knot of support sensor is equipped in the sampling cavity
Structure, sampling cavity include the first balance portion being connected to the air inlet of sensor and are connected to the gas outlet of sensor second flat
Weighing apparatus part, first balance portion are connected to the second balance portion.
The beneficial effects of the utility model are: by the way that sampling cavity to be divided into the be connected to sensor air inlet first balance
Part and the buffer portion being connected to the gas outlet of sensor, and the two is made to keep connection, cause flat first in tested gas
Make air inlet side and the gas outlet side pressure of the sensor being placed in sampling cavity in weighing apparatus part and the second balance portion when free diffusing
Dynamic balance solves the problems, such as to protect the method for electrochemical sensor complex in the prior art.
Further, in order to further improve the safety of sensor, the air inlet of the sampling cavity is arranged second
In the cavity wall of balance portion, balance under test gas before the air inlet for entering sensor via the second balance portion and first
Part avoids the higher under test gas of the pressure of the air inlet side of sensor holder from making to make under test gas reduce certain pressure
At the damage of sensor.
Further, in order to improve the buffering effect under test gas, the sensor support structure includes that setting is taking
With the support ring-shaped step of the air outlet side of sensor support cooperation in the cavity wall of sample chamber, the support ring-shaped step surrounds described
Second balance portion, the support ring-shaped step are equipped with the buffer channel of connection the first balance portion and the second balance portion,
Make under test gas when entering the first balance portion from the second balance portion by narrow buffer channel, by reducing under test gas
Area of passage to reduce the pressure of under test gas into the first balance portion.
Further, in order to facilitate processing, the buffer channel is the dashpot being arranged on support ring-shaped step, is used
The mode of fluting avoids opening up bending hole on support ring-shaped step, and processing technology is simpler.
Further, the shaking in order to avoid sensor in sampling cavity, being additionally provided in the sampling cavity makes sampling cavity
The position limiting structure of cavity wall and the setting of the sidewall spacers of sensor, the side wall of sensor and the chamber of sampling cavity are avoided by position limiting structure
Collision between wall avoids the abrasion of the damage of sensor and the cavity wall of sampling cavity.
Further, in order to improve the protection to sensor, the position limiting structure includes being arranged in the cavity wall of sampling cavity
Limit elastic component, avoid the rigid contact between position limiting structure and sensor or the cavity wall of sampling cavity, and in sensor to taking
The impact when cavity wall of sample chamber is mobile by limit elastic component come buffer sensor to the cavity wall of sampling cavity.
Further, in order to avoid the disengaging installation site of limit elastic component, the limit elastic component is for being sleeved on
Flexible fastening circle on the side wall of sensor, the position limiting structure further include in the cavity wall for be arranged in sampling cavity for assembling elasticity
The fixation ring recess of retainer plate, the fixed ring recess include and the retainer plate cooperation section of flexible fastening circle limit cooperation and are connected to first
The retainer plate Connectivity Section of balance portion and the second balance portion, the groove depth and groove width of the retainer plate Connectivity Section, which are respectively greater than, fixes
The groove depth and groove width of circle cooperation section, fix flexible fastening circle by the way that fixed ring recess is arranged, and retainer plate Connectivity Section is arranged to connect
Logical first balance portion and the second balance portion, avoid position limiting structure from blocking the company of the first balance portion and the second balance portion
It is logical, and position limiting structure can make to keep certain interval flat to be connected to first between the cavity wall of sampling cavity and the side wall of sensor
Weighing apparatus part and the second balance portion, avoid the additional processing to the cavity wall of sampling cavity.
Further, in order to facilitate the processing of shell and the assembly of gas analyzer, the shell includes seperated removable
First shell and second shell, the retainer plate Connectivity Section are connected to the binding face of first shell and second shell, facilitate fixation
The processing of Connectivity Section is enclosed, and the assembly of the other components such as sensor is facilitated using seperated removable structure using shell.
Further, in order to reduce the difficulty of processing of shell, the sensor support structure includes being arranged in sampling cavity
The probe of the air inlet side mounted in sensor is connect and pushed up with sensor signal, by setting probe come pushing tow sensor, is avoided
Further processing to shell, and when using the sensor of different-thickness, the probe of different length can be replaced to be adapted to
Sensor improves the versatility of shell.
Further, in order to avoid the shaking of sensor, the sensor support structure further includes for installing probe
Probe socket and be arranged between probe and probe socket with to probe apply pressure make pop one's head in jam sensor elastic component, by setting
It sets elastic component to carry out elastic press to sensor, avoids the shaking of sensor.
Further, in order to improve the stability of probe, the probe is slidedly assemblied in spy on the press direction of probe
On headstock, probe bending when being pressed sensor is avoided, the press effect of probe is influenced.
Further, for the ease of practical operation, the signal wire being additionally provided on the sampling cavity for probe stretches out sampling cavity
Sampling hole, encapsulating has the seal for sealing sampling hole at the sampling hole, and the probe socket is inlaid in seal, just
It is connected in signal wire with the other equipment outside sensor holder, also, keeps probe socket relatively fixed with shell, improve probe press fitting
Stability.
Further, for the ease of practical operation, the signal wire being additionally provided on the sampling cavity for sensor stretches out sampling
The sampling hole of chamber, encapsulating has the seal for sealing sampling hole at the sampling hole, outside signal wire and sensor holder
Other equipment connection.
Further, in order to improve the stability of sealing, the hole wall of the sampling hole is equipped with block groove, and block is recessed
The groove sidewall of slot cooperates on the axis direction of sampling hole with seal block, and sealing structure is avoided to deviate to sample from sampling hole
Chamber.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of the specific embodiment 1 of the gas analyzer of the utility model；
Fig. 2 is the structural schematic diagram at the sensor seat of honour of the specific embodiment 1 of the gas analyzer of the utility model；
Fig. 3 is the bottom view of Fig. 2；
Fig. 4 is Fig. 3 along line A-A cross-sectional view；
Fig. 5 be the utility model gas analyzer specific embodiment 1 sensor under seat structural schematic diagram；
Fig. 6 is the top view of Fig. 5；
Fig. 7 is the main view of Fig. 5；
Fig. 8 is Fig. 7 along line A-A cross-sectional view；
Fig. 9 is the structural schematic diagram of the locking nut of the specific embodiment 1 of the gas analyzer of the utility model.
Specific embodiment
The embodiments of the present invention is described further with reference to the accompanying drawing.
The specific embodiment 1 of the gas analyzer of the utility model, as shown in Figures 1 to 9, gas analyzer include sensing
Device 13 and for sensors configured 13 and the gas analyzer shell that is sampled under test gas, in the present embodiment, sensor
13 use more commonly used electrochemical sensor, are equipped with the sampling cavity configured for sensor 13 in gas analyzer shell, in order to
The convenient more emat sensor 13 when sensor 13 damages, therefore shell is split type structure, including first shell 1 and second shell
2, second shell 2 is equipped with the air inlet 5 being connected to sampling cavity and gas outlet 4, the junction of first shell 1 and second shell 2
Equipped with the locking nut 3 for first shell 1 and second shell 2 to be secured together, when needing replacing sensor 13, directly
Rotating locking nut 3 and opening sampling cavity is replaceable sensor 13.Meanwhile using the gas analyzer for some nocuousness
The danger that is leaked when gas is detected and in view of sampling cavity air-tightness for sensor 13 test result influence, because
The binding face of this first shell 1 and second shell 2 is equipped with seal groove 12, is equipped with sealing ring so as to take in seal groove 12
The sealing of sample chamber.Certainly, in other embodiments, shell may be integral structure.
Film in electrochemical sensor employed in the present embodiment is be easy to cause in the case where pressure at both sides is not reciprocity
The damage of electrochemical sensor, therefore, for the pressure of balance sensor two sides, sampling cavity is placed in sensor 13 therein and divides
For upper and lower two parts, wherein being placed on the upside of sensor 13 the i.e. part of the air inlet side of sensor 13 is the first balance portion
7, being placed on the downside of sensor 13 the i.e. part of the air outlet side of sensor 13 is the second balance portion 6, and is passed in the present embodiment
Interval setting is formed between sensor 13 and the internal chamber wall of sampling cavity takes what the second balance portion 6 and the first balance portion 7 were connected to
Sample channel reduces the area of passage of under test gas gas when through over sampling channel so that into the first balance portion 7
The pressure reduction of gas avoids the excessive impact to sensor 13 of gas pressure in the first balance portion 7.Certainly, at other
In embodiment, the side wall of sensor 13 can between the internal chamber wall of sampling cavity clearance fit or transition fit, and taking
The channel for being connected to the second balance portion 6 with the first balance portion 7 is opened up on the internal chamber wall of sample chamber, to realize to the first balance portion
Divide the purpose of 7 supply gases.
In order to further be buffered under test gas, the bottom of sampling cavity be equipped with supported with sensor 13 cooperate so that
The downside of sensor 13 forms the support ring-shaped step of the second balance portion 6, and the cavity wall of the second balance portion 6 is equipped with and sampling
The dashpot 601 of channel connection, in the present embodiment, dashpot 601 sets there are four and is circumferentially evenly arranged, second flat by making
Weigh part 6 enter the first balance portion 7 in gas area of passage reduce so that enter sampling channel in gas pressure into
One step reduces.Wherein, dashpot 601 constitutes the buffer channel for being connected to the first balance portion 7 and the second balance portion 6, when
So, in other embodiments, the setting quantity of dashpot 601 is arbitrary, and can be set one, and two, three also can be set
Any amounts such as a.
In the present embodiment, due to being spaced setting between the side wall of sensor 13 and the cavity wall of sampling cavity, in gas point
When analyzer is transported, sensor 13 can shake in sampling cavity, therefore in order to avoid sensor 13 shakes cause in sampling cavity
The collision between the side wall of sensor 13 and the cavity wall of sampling cavity is set to cause the abrasion of the cavity wall of sensor 13 and sampling cavity, first
The cavity wall of the sampling cavity of shell 1 is equipped with fixed ring recess 11, and the side for being set in sensor 13 is equipped in fixed ring recess 11
O-ring seal 10 on wall is kept away when sensor 13 is mobile to the cavity wall of sampling cavity by the extrusion deformation of O-ring seal 10
Collision simultaneous buffering between no-sensor 13 and the inner sidewall of sampling cavity falls impact of the sensor 13 to the cavity wall of sampling cavity.This
The setting of O-ring seal 10 actually makes to sample and close between channel and the first balance portion 7 in embodiment, therefore the present embodiment
Middle fixed ring recess 11 includes two parts, and a part cooperates section 111, another portion for the retainer plate cooperated with the limit of O-ring seal 10
Be divided into connection the first balance portion 7 and the second balance portion 6 retainer plate Connectivity Section 112, the groove depth of retainer plate Connectivity Section 112 and
Groove width is respectively greater than the groove depth and groove width of retainer plate cooperation section 111, also, in the present embodiment, retainer plate Connectivity Section 112 is equipped with four
It is a and be circumferentially evenly arranged.Meanwhile retainer plate Connectivity Section 112 can not only play connection the first balance portion 7 and second it is flat
Weigh part 6 effect, but also can make sample channel enter the first balance portion 7 gas area of passage reduce so that into
The gas pressure entered in the first balance portion 7 further decreases, and avoids the damage of sensor 13.In view of retainer plate Connectivity Section
112 difficulty of processing, in the present embodiment, retainer plate Connectivity Section 112 is connected to the binding face of first shell 1 and second shell 2, is adopted
Retainer plate Connectivity Section 112 can be processed with slotting cutter.Wherein, retainer plate Connectivity Section 112 constitutes logical for being connected to sampling
The balance channel in road, balance channel, sampling channel and buffer channel are constituted for by the second balance portion 6 and the first balance portion
The protection gas circuit of 7 connections, O-ring seal 10 constitute flexible fastening circle, and flexible fastening constitutes limit elastic component, fixed 11 He of ring recess
O-ring seal 10 constitutes the position limiting structure that the sidewall spacers of cavity wall and sensor 13 for making sampling cavity are arranged.Certainly, at it
In his embodiment, elastic spacing one can be the elastic rubber limited block being arranged in the cavity wall of sampling cavity；Position limiting structure can also
Think the annular protrusion being arranged on the side wall of sensor 13, and flexible fastening circle may be conventional seals circle；Retainer plate
Slot 11 also can be set in the cavity wall of the sampling cavity of second shell 2.
In the present embodiment, sensor 13 shakes in sampling cavity in order to prevent, and several probes 15 are additionally provided in shell and are used
In the probe socket 14 of installation probe 15, probe socket 14 is tubular structure, and probe 15, which is installed in probe socket 14, to be made probe 15 and visit
Headstock 14 is slidably matched, and spring is equipped in probe socket 14, and probe 15 is protruded into counter balance pocket 7 under the pushing tow of spring by sensor 13
Top prevents teetertottering for sensor 13 in sampling cavity, and probe 15 and probe socket 14 are slidably matched and improve 15 top of probe
The stability of dress avoids spring bending from causing the failure of probe 15.Wherein, probe 15 can not only play fixed sensor 13
Effect, and also acts as effect connect with 13 signal of sensor, and on probe 15 or probe socket 14 is equipped with being used for and next stage
The signal wire of electric unit signal connection, shell are equipped with the sampling hole 9 passed through for signal wire, and it is real that signal wire passes through sampling hole 9
Existing sensor 13 is connect with the signal of next stage electric unit.Certainly, it may also set up ring-shaped step in the cavity wall of sampling cavity, annular
Step is equipped with the contact connecting with 13 signal of sensor, and contact is equipped with the signal wire for stretching out sampling cavity, on sensor 13
When lower shaking, block cooperates between the downside of ring-shaped step and the upper surface of sensor 13, avoids the shaking of sensor 13, and
And the transducing signal that the setting of contact measures sensor exports；Probe 15 can be for tubular structure and sliding sleeve is mounted in probe socket
On 14, spring is equipped in probe 15, probe 15 realizes the compression to sensor 13, certainly, ring-shaped step by the pushing tow of spring
On can also be not provided with the effect that contact functions only as block, on sensor 13 setting signal line realize sensor 13 signal it is defeated
Out.Wherein, spring constitutes the probe socket 14 for installing probe 15 and is arranged between probe 15 and probe socket 14 to probe
15 application pressure make the elastic component of 15 jam sensors 13 of probe, and support ring-shaped step, probe 15, probe socket 14 and spring are constituted
It is used to support the sensor support structure of sensor 13.
In the present embodiment, it is contemplated that influence of the sampling hole 9 to housing seal effect is set, and encapsulating has sealing at sampling hole 9
Resin 8, sealing resin 8 is deviate from from sampling hole 9 in order to prevent, therefore the hole wall of the sampling hole 9 of first shell 1 is equipped with block
Groove 16, block groove 16 in a ring, when sealing resin 8 sampling hole 9 axis direction and shell occur relative displacement when, gear
Only the groove sidewall of groove 16 and 8 block of sealing resin cooperate, and avoid the abjection of sealing resin 8.Also, in view of 15 press fitting of probe
The stability of sensor 13, probe socket 14 are inlaid in sealing resin 8, avoid the inclination of probe 15, wherein block groove 16
Shape can not be annular, or along the groove of sampling hole 9 radially extended, sealing resin 8 is constituted for sealing sampling
The seal in hole 9, certainly, in other embodiments, seal may be rubber stopper of the plug at sampling hole 9, rubber stopper
It is equipped with the signal wire passed through for signal wire to perforate, and the diameter of signal wire perforation is less than the diameter of signal wire, passes through rubber stopper
Plug dress realize sampling cavity sealing.
When carrying out gas analysis using the gas analyzer, under test gas enters the second balance portion 6 from air inlet 5,
It passes sequentially through dashpot 601, sampling channel, fix in first balance portion 7 of the entrance of ring recess Connectivity Section 112, make 13 liang of sensor
The pressure of side is equal, avoids the damage of sensor 13.
The gas analyzer of the utility model can be used in in the analysis of hydrogen, oxygen, it is also possible to methane, acetylene
It only need to be corresponding under test gas by replacing sensor when needing to detect different gas in the analysis of equal gases
Sensor.
Above-mentioned specific embodiment 1 is the optimal embodiment of the gas analyzer of the utility model, can in other embodiments
Corresponding structure is adjusted or be simplified as needed:
The specific embodiment 2 of the gas analyzer of the utility model simplifies the structure of gas analyzer in the present embodiment,
Gas analyzer includes sensor and gas analyzer shell, and the sampling cavity of sensors configured is equipped in shell, and shell is equipped with
The air inlet and air outlet being connected to sampling cavity, it is characterised in that: the sensor branch of support sensor is equipped in the sampling cavity
Support structure, sampling cavity include the first balance portion being connected to the air inlet of sensor and be connected to the gas outlet of sensor
Two balance portions, first balance portion are connected to the second balance portion, by the way that sampling cavity to be divided into and sensor air inlet
First balance portion of mouth connection and the buffer portion being connected to the gas outlet of sensor, and the two is made to keep connection, cause
Tested gas makes the air inlet for the sensor being placed in sampling cavity in the first balance portion and the second balance portion when free diffusing
Mouth side and air outlet side pressure balance solve the problems, such as to protect the method for electrochemical sensor complex in the prior art.
Specific embodiment 3, as advanced optimizing to specific embodiment 2, the setting of the air inlet of the sampling cavity is the
In the cavity wall of two balance portions.Certainly, in other embodiments, the air inlet of sampling cavity also can be set in the first balance portion
Cavity wall on, the interval between the side wall of sensor and the cavity wall of sampling cavity can also be set.
Specific embodiment 4, as advanced optimizing to specific embodiment 3, the sensor support structure includes setting
The support ring-shaped step cooperated in the cavity wall of sampling cavity with the support of the air outlet side of sensor, the support ring-shaped step surround
Second balance portion, the support ring-shaped step is equipped with the first balance portion of connection and the buffering of the second balance portion is logical
Road.Certainly, in other embodiments, support ring-shaped step could alternatively be the supporting block being arranged in below sensor, supporting block
It can be installed in the cavity wall of sampling cavity, also can be used as the lower section that movable part is placed on sensor, the interval structure between supporting block
At the buffer channel of connection the first balance portion and the second balance portion.
Specific embodiment 5, as advanced optimizing to specific embodiment 3, the buffer channel is to be arranged in support ring
Dashpot on shape step.Certainly, in other embodiments, buffer channel can be the bending being arranged on support ring-shaped step
Hole.
Specific embodiment 6 is also set in the sampling cavity as advanced optimizing to any of specific embodiment 2-5
There is the position limiting structure of the sidewall spacers setting of the cavity wall and sensor that make sampling cavity.Certainly, in other embodiments, in sampling cavity
It can also be not provided with position limiting structure.
Specific embodiment 7, as advanced optimizing to specific embodiment 6, the position limiting structure includes that setting is sampling
Limit elastic component in the cavity wall of chamber.Certainly, in other embodiments, position limiting structure may be rigid member.
Specific embodiment 8, as advanced optimizing to specific embodiment 7, the limit elastic component is for being sleeved on
Flexible fastening circle on the side wall of sensor, the position limiting structure further include in the cavity wall for be arranged in sampling cavity for assembling elasticity
The fixation ring recess of retainer plate, the fixed ring recess include and the retainer plate cooperation section of flexible fastening circle limit cooperation and are connected to first
The retainer plate Connectivity Section of balance portion and the second balance portion, the groove depth and groove width of the retainer plate Connectivity Section, which are respectively greater than, fixes
The groove depth and groove width of circle cooperation section.Certainly, in other embodiments, it can also be not provided with fixed ring recess, it is real by flexible fastening circle
The limit of existing sensor.
Specific embodiment 9, as advanced optimizing to specific embodiment 8, the shell includes removable first of fission
Shell and second shell, the retainer plate Connectivity Section are connected to the binding face of first shell and second shell.Certainly, in other realities
It applies in example, shell may be integral structure, and retainer plate Connectivity Section can also be only the slot of a side opening.
Specific embodiment 10, as advanced optimizing to any of specific embodiment 2-5, the sensor support knot
Structure includes that the probe for connecting and pushing up the air inlet side mounted in sensor in sampling cavity with sensor signal is arranged in.Certainly, at it
In his embodiment, probe can not also be set, by the ring-shaped step or block being arranged in sampling cavity, in the air inlet of sensor
The first balance portion is formed between side and the upper cavity wall of sampling cavity.
Specific embodiment 11, as advanced optimizing to specific embodiment 10, the sensor support structure further includes
For installing the probe socket of probe and being arranged between probe and probe socket to apply pressure to probe and make jam sensor of popping one's head in
Elastic component.In the present embodiment, elastic component can be the flexible parts such as rubber block and spring.Certainly, in other implementations
In example, probe can also be filled on a sensor with rigid top.
Specific embodiment 12, as advanced optimizing to specific embodiment 11, the probe is in the press direction of probe
On be slidedly assemblied on probe socket.Certainly, in other embodiments, probe, which can also be sleeved on probe socket, realizes probe and visits
Headstock is slidably matched.
Specific embodiment 13 is additionally provided on the sampling cavity as advanced optimizing to specific embodiment 11 for probe
Signal wire stretch out the sampling hole of sampling cavity, encapsulating has the seal for sealing sampling hole, the probe at the sampling hole
Seat is inlaid in seal.In the present embodiment, seal can be the sealing resin being potted at sampling hole, or plug dress
Rubber stopper at sampling hole, rubber stopper are equipped with the signal wire installed for signal wire and perforate, and the aperture of signal wire perforation
Less than the outer diameter of signal wire；Probe socket movable can be assemblied in sampling cavity and push up on the lower surface of seal.
Specific embodiment 14, as advanced optimizing to any of specific embodiment 2 to 5, on the sampling cavity also
The sampling hole of sampling cavity is stretched out equipped with the signal wire for sensor, encapsulating has the sealing for sealing sampling hole at the sampling hole
Body.In the present embodiment, seal can be the sealing resin being potted at sampling hole, or rubber of the plug at sampling hole
Rubber plug, rubber stopper are equipped with the signal wire installed for signal wire and perforate, and the aperture of signal wire perforation is less than the outer of signal wire
Diameter.
Specific embodiment 15, as advanced optimizing to specific embodiment 14, the hole wall of the sampling hole is equipped with gear
Only groove, and the groove sidewall of block groove cooperates on the axis direction of sampling hole with seal block.Certainly, in other implementations
In example, the aperture of sampling hole can also be made to be less than the diameter of the horizontal cross-section of sampling cavity, and then realize the abjection for avoiding seal.
The specific embodiment of the gas analyzer shell of the utility model, the gas analyzer shell and the utility model
Any of the specific embodiment 1-15 of gas analyzer described in gas analyzer shell it is identical, repeat no more.
Claims (28)
1. a kind of gas analyzer shell, the interior sampling cavity being equipped with for sensors configured of shell, shell is equipped with and sampling cavity
The air inlet and air outlet of connection, it is characterised in that: the sensor support knot for being used to support sensor is equipped in the sampling cavity
Structure, sampling cavity include that the first balance portion being connected to for the air inlet with sensor and the gas outlet for sensor are connected to
The second balance portion, first balance portion is connected to the second balance portion.
2. gas analyzer shell according to claim 1, it is characterised in that: the setting of the air inlet of the sampling cavity is the
In the cavity wall of two balance portions.
3. gas analyzer shell according to claim 2, it is characterised in that: the sensor support structure includes setting
For the support ring-shaped step with the support cooperation of the air outlet side of sensor, the support ring-shaped step in the cavity wall of sampling cavity
Surround second balance portion, the support ring-shaped step is equipped with the slow of the first balance portion of connection and the second balance portion
Rush channel.
4. gas analyzer shell according to claim 3, it is characterised in that: the buffer channel is to be arranged in support ring
Dashpot on shape step.
5. gas analyzer shell described in any one of -4 according to claim 1, it is characterised in that: also set in the sampling cavity
There is the position limiting structure of the sidewall spacers setting of the cavity wall and sensor for making sampling cavity.
6. gas analyzer shell according to claim 5, it is characterised in that: the position limiting structure includes that setting is sampling
Limit elastic component in the cavity wall of chamber.
7. gas analyzer shell according to claim 6, it is characterised in that: the limit elastic component is for being sleeved on
Flexible fastening circle on the side wall of sensor, the position limiting structure further include in the cavity wall for be arranged in sampling cavity for assembling elasticity
The fixation ring recess of retainer plate, the fixed ring recess include and the retainer plate cooperation section of flexible fastening circle limit cooperation and are connected to first
The retainer plate Connectivity Section of balance portion and the second balance portion, the groove depth and groove width of the retainer plate Connectivity Section, which are respectively greater than, fixes
The groove depth and groove width of circle cooperation section.
8. gas analyzer shell according to claim 7, it is characterised in that: the shell includes seperated removable first shell
Body and second shell, the retainer plate Connectivity Section are connected to the binding face of first shell and second shell.
9. gas analyzer shell described in any one of -4 according to claim 1, it is characterised in that: the sensor support knot
Structure includes being arranged in sampling cavity for the probe of the air inlet side mounted in sensor to be connect and pushed up with sensor signal.
10. gas analyzer shell according to claim 9, it is characterised in that: the sensor support structure further includes
For installing the probe socket of probe and being arranged between probe and probe socket to apply pressure to probe and make jam sensor of popping one's head in
Elastic component.
11. gas analyzer shell according to claim 10, it is characterised in that: the probe is in the press direction of probe
On be slidedly assemblied on probe socket.
12. gas analyzer shell according to claim 10, it is characterised in that: be additionally provided on the sampling cavity for probe
Signal wire stretch out the sampling hole of sampling cavity, encapsulating has the seal for sealing sampling hole, the probe at the sampling hole
Seat is inlaid in seal.
13. gas analyzer shell described in any one of -4 according to claim 1, it is characterised in that: on the sampling cavity also
The sampling hole of sampling cavity is stretched out equipped with the signal wire for sensor, encapsulating has the sealing for sealing sampling hole at the sampling hole
Body.
14. gas analyzer shell according to claim 13, it is characterised in that: the hole wall of the sampling hole is equipped with gear
Only groove, and the groove sidewall of block groove cooperates on the axis direction of sampling hole with seal block.
15. gas analyzer, including sensor and gas analyzer shell, the interior sampling cavity for being equipped with sensors configured of shell, shell
Body is equipped with the air inlet and air outlet being connected to sampling cavity, it is characterised in that: support sensor is equipped in the sampling cavity
Sensor support structure, sampling cavity include the first balance portion being connected to the air inlet of sensor and with the gas outlet of sensor
Second balance portion of connection, first balance portion are connected to the second balance portion.
16. gas analyzer according to claim 15, it is characterised in that: the air inlet of the sampling cavity is arranged second
In the cavity wall of balance portion.
17. gas analyzer according to claim 16, it is characterised in that: the sensor support structure includes that setting exists
The support ring-shaped step cooperated in the cavity wall of sampling cavity with the support of the air outlet side of sensor, the support ring-shaped step surround institute
The second balance portion is stated, the support ring-shaped step is equipped with the first balance portion of connection and the buffering of the second balance portion is logical
Road.
18. gas analyzer according to claim 17, it is characterised in that: the buffer channel is setting in support annular
Dashpot on step.
19. gas analyzer described in any one of 5-18 according to claim 1, it is characterised in that: also set in the sampling cavity
There is the position limiting structure of the sidewall spacers setting of the cavity wall and sensor that make sampling cavity.
20. gas analyzer according to claim 19, it is characterised in that: the position limiting structure includes being arranged in sampling cavity
Cavity wall on limit elastic component.
21. gas analyzer according to claim 20, it is characterised in that: the limit elastic component is to pass for being sleeved on
Flexible fastening circle on the side wall of sensor, the position limiting structure further include solid for assembling elasticity in the cavity wall for be arranged in sampling cavity
Surely the fixation ring recess enclosed, the fixed ring recess include and the retainer plate cooperation section of flexible fastening circle limit cooperation and to be connected to first flat
The retainer plate Connectivity Section of weighing apparatus part and the second balance portion, the groove depth and groove width of the retainer plate Connectivity Section are respectively greater than retainer plate
Cooperate the groove depth and groove width of section.
22. the gas analyzer according to claim 21, it is characterised in that: the shell includes seperated removable first shell
And second shell, the retainer plate Connectivity Section are connected to the binding face of first shell and second shell.
23. gas analyzer described in any one of 5-18 according to claim 1, it is characterised in that: the sensor support knot
Structure includes that the probe for connecting and pushing up the air inlet side mounted in sensor in sampling cavity with sensor signal is arranged in.
24. gas analyzer according to claim 23, it is characterised in that: the sensor support structure further includes being used for
The probe socket of probe is installed and is arranged between probe and probe socket to apply pressure to probe and make the bullet of probe jam sensor
Property part.
25. gas analyzer according to claim 24, it is characterised in that: the probe slides up in the press side of probe
It is dynamic to be assemblied on probe socket.
26. gas analyzer according to claim 24, it is characterised in that: be additionally provided with the letter for probe on the sampling cavity
Number line stretches out the sampling hole of sampling cavity, and encapsulating has the seal for sealing sampling hole at the sampling hole, and the probe socket is embedding
In seal.
27. gas analyzer described in any one of 5-18 according to claim 1, it is characterised in that: also set on the sampling cavity
There is the sampling hole that sampling cavity is stretched out for the signal wire of sensor, encapsulating has the sealing for sealing sampling hole at the sampling hole
Body.
28. gas analyzer according to claim 27, it is characterised in that: it is recessed that the hole wall of the sampling hole is equipped with block
Slot, and the groove sidewall of block groove cooperates on the axis direction of sampling hole with seal block.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820589817.0U CN208224156U (en) | 2018-04-24 | 2018-04-24 | A kind of gas analyzer shell and the gas analyzer using the shell |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820589817.0U CN208224156U (en) | 2018-04-24 | 2018-04-24 | A kind of gas analyzer shell and the gas analyzer using the shell |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208224156U true CN208224156U (en) | 2018-12-11 |
Family
ID=64512452
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201820589817.0U Active CN208224156U (en) | 2018-04-24 | 2018-04-24 | A kind of gas analyzer shell and the gas analyzer using the shell |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208224156U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108333235A (en) * | 2018-04-24 | 2018-07-27 | 郑州迪邦科技有限公司 | Gas analyzer shell and the gas analyzer for using the shell |
| CN110646048A (en) * | 2019-10-07 | 2020-01-03 | 刘桂稳 | Gas-liquid two-phase flow parameter online detector adopting pressure reversing principle |
| CN116125007A (en) * | 2023-04-04 | 2023-05-16 | 云南碧翔物联网科技有限公司 | Automatic monitoring system and method for environmental pollutants |
-
2018
- 2018-04-24 CN CN201820589817.0U patent/CN208224156U/en active Active
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108333235A (en) * | 2018-04-24 | 2018-07-27 | 郑州迪邦科技有限公司 | Gas analyzer shell and the gas analyzer for using the shell |
| CN110646048A (en) * | 2019-10-07 | 2020-01-03 | 刘桂稳 | Gas-liquid two-phase flow parameter online detector adopting pressure reversing principle |
| CN116125007A (en) * | 2023-04-04 | 2023-05-16 | 云南碧翔物联网科技有限公司 | Automatic monitoring system and method for environmental pollutants |
| CN116125007B (en) * | 2023-04-04 | 2023-08-25 | 云南碧翔物联网科技有限公司 | Automatic monitoring system and method for environmental pollutants |
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