CN205280461U - Sampling probe with from cleaning function - Google Patents

Sampling probe with from cleaning function Download PDF

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Publication number
CN205280461U
CN205280461U CN201620000914.2U CN201620000914U CN205280461U CN 205280461 U CN205280461 U CN 205280461U CN 201620000914 U CN201620000914 U CN 201620000914U CN 205280461 U CN205280461 U CN 205280461U
Authority
CN
China
Prior art keywords
air flue
sampling
cleaning function
sampling probe
inlet pipe
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Fee Related
Application number
CN201620000914.2U
Other languages
Chinese (zh)
Inventor
韩宗正
张志凌
周志坚
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
MSA China Safety Equipment Co Ltd
Original Assignee
MSA China Safety Equipment Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by MSA China Safety Equipment Co Ltd filed Critical MSA China Safety Equipment Co Ltd
Priority to CN201620000914.2U priority Critical patent/CN205280461U/en
Application granted granted Critical
Publication of CN205280461U publication Critical patent/CN205280461U/en
Expired - Fee Related legal-status Critical Current
Anticipated expiration legal-status Critical

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Abstract

The utility model discloses a sampling probe with from cleaning function, including the connecting block, be equipped with the air flue in this connecting block, this air flue is connected with the intake pipe, the joint of giving vent to anger, and the articulate of giving vent to anger has the sampling trachea, should give vent to anger to connect the filter core of being furnished with the stainless steel material preparation, still is equipped with venturi in this connecting block, and venturi includes the entrance, restraints a mouthful section, throat and diffuser, the entrance interpolation has the suction nozzle, and the interval of the opening outer fringe of suction nozzle and the lateral wall of this throat is c, the suction nozzle upper end is connected with clean compressed air source or compression nitrogen gas source, the sub -unit connection of diffuser has the pipe of drainage, being equipped with the baffle on the upper portion left surface of air flue, having the clearance between the right -hand member of this baffle and the right flank of this air flue, the width in clearance is a, and the left side of air flue is equipped with the intercommunicating pore on the surface, and the height of intercommunicating pore is b, right side this intercommunicating pore of intercommunication of entrance, a <= b <= c. The utility model has the advantages that: can sample at line length detection time, and it is less to the influence of production technology.

Description

There is the sampling probe of self-cleaning function
Technical field
The utility model relates to the equipment technical field of online gas detecting system, especially relates to a kind of sampling probe with self-cleaning function.
Background technology
Continuously online gas sampling analyser produce in all kinds of industry and mining industry, application in technological process widely, its objective is in order to real-time determination and analysis target gas content with interlock alarm or carries out technology controlling and process etc. But, object gas background in gas transmission line, feed bin or offgas duct is attended by a large amount of dust, particle and moisture etc. usually, is easy to cause conventional sampling probe to block within the short period of time and lost efficacy or caused gasometry equipment in rear end such as the damage of pump, valve or probe. And, the human and material resources cost changing, cleaning sampling probe is bigger. The anti-blow line of mode of normal employing backend arrangement pressurized air or compression nitrogen at present, but can carry out after often needing to wait until line clogging, and the operation of anti-blow line needs frequently to carry out mostly. Moreover, when sample gas under the such as high dust in production, technological process, moisture and particle background detects, the blowback of pressurized air or compression nitrogen or other pressurized gass is not allowed to wash, because so operation can change the sample gas group part in production, technological process. Or, because of changing, clean sampling probe and cause on-line checkingi interruption or device to produce interruption, thus safety, bad hidden danger or financial loss can be brought.
Summary of the invention
The purpose of this utility model is to provide a kind of sampling probe with self-cleaning function, and it has can detect sampling online for a long time, and the feature that production technique impact is less.
The technical scheme that the utility model adopts is: the sampling probe with self-cleaning function, comprise connection block, this connection block is provided with the air flue of the upper and lower end face of this connection block through, the lower port portion of this air flue is connected with inlet pipe, upper end oral area is connected with air outlet adapter, this air outlet adapter is connected with sampling tracheae, and this air outlet adapter is furnished with filter core prepared by stainless material
The left side being positioned at this air flue in described connection block is also provided with Venturi tube, this Venturi tube comprise under be arranged in order entrance section, bundle mouth section, larynx road and expansion section;
The spacing of the admission piece being inserted with a doline in described entrance section, the opening portion outer rim of this admission piece and the sidewall in this larynx road is c;
Described admission piece upper end is connected with cleaning compressed air source or compression source nitrogen;
The bottom of described expansion section is connected with waste pipe;
The upper left-hand face of described air flue is provided with the baffle plate extended to the right, between the face, right side of the right-hand member of this baffle plate and this air flue, there is gap, the width in this gap is a, and the top that the left-hand face of this air flue is positioned at this baffle plate is provided with communicating aperture, and the height of this communicating aperture is b;
Meanwhile,
The right side of this entrance section is connected this communicating aperture;
a��b��c��
The internal diameter of described inlet pipe is 12 ~ 20mm, the internal diameter of tracheae of sampling is 4 ~ 6mm, the internal diameter of waste pipe is 8 ~ 20mm.
Described inlet pipe is big tubaeform in outer end.
The length of described inlet pipe is at least 100mm.
The utility model is advantageously: can detect sampling online for a long time, and the impact of production technique is less. The sampling probe with self-cleaning function of the present utility model is by the application to Venturi principle, and use that can be long-time, in the gas on-line monitoring systems such as high dust, steam, substantially prolongs the duration of service of sampling probe, decreases and safeguard cost of upkeep. And, this sampling probe with self-cleaning function does not in use change sample gas group part, has good practicality, is particularly useful in the gas on-line monitoring system of the contour dust industry in colliery.
Accompanying drawing explanation
Below in conjunction with drawings and Examples, the utility model is illustrated further:
Fig. 1 is the front sectional view (locally) of the sampling probe with self-cleaning function of embodiment of the present utility model;
Fig. 2 is the front sectional view of inlet pipe of the present utility model.
In figure:
10, block is connected, 11, air flue, 111, baffle plate, 112, gap, 113, through hole, 12, Venturi tube, 121, entrance section, 122, bundle mouth section, 123, larynx road, 124, expansion section;
20, inlet pipe;
30, air outlet adapter, 31, sampling tracheae;
40, filter core;
50, admission piece;
60, waste pipe;
70, cleaning compressed air source or compression source nitrogen.
Embodiment
Embodiment, is shown in shown in Fig. 1 and Fig. 2: the sampling probe with self-cleaning function, comprises and connects block 10. This connection block 10 is provided with the air flue 11 of the upper and lower end face of this connection block 10 through, the lower port portion of this air flue 11 is connected with inlet pipe 20, upper end oral area is connected with air outlet adapter 30, this air outlet adapter 30 is connected with sampling tracheae 31, and this air outlet adapter 30 is furnished with filter core 40 prepared by stainless material. Obviously, this filter core 40 is for filtering dust, moisture and particle.
Concretely:
The left side being positioned at this air flue 11 in this connection block 10 is also provided with Venturi tube 12. That is, this Venturi tube 12 comprise under be arranged in order entrance section 121, bundle mouth section 122, larynx road 123 and expansion section 124. The spacing of the admission piece 50 being inserted with a doline in this entrance section 121, the opening portion outer rim of this admission piece 50 and the sidewall in this larynx road 123 is c. Certainly, best mode is, this admission piece 50 is positioned at the center position in this larynx road 123. Such as, this larynx road 123 is also circular. This admission piece 50 upper end is connected with cleaning compressed air source or compression source nitrogen 70. The bottom of this expansion section 124 is connected with waste pipe 60.
The upper left-hand face of this air flue 11 is provided with the baffle plate 111 extended to the right, has gap 112 between the right-hand member of this baffle plate 111 and the face, right side of this air flue 11, and the width in this gap 112 is a. Obviously, in order to guarantee the stable of gap 112 width, this air flue 11 passage that preferably cross section is square. The top being positioned at this baffle plate 111 in the left-hand face of this air flue 11 is provided with communicating aperture 113, and the height of this communicating aperture 113 is b.
The right side of this entrance section 121 is connected this communicating aperture 113. Meanwhile, the pass of the spacing c of the sidewall in the height b of the width a in this gap 112, this communicating aperture 113, the opening portion outer rim of this admission piece 50 and this larynx road 123 is: a��b��c.
Like this; gas in pneumatic tube enters this air flue 11 via this inlet pipe 20; afterwards; flow out from this sampling tracheae 31 via this filter core 40; macrobead dust wherein and steam are blown by the negative-pressure air-flow restrainting mouth section 122 place to be washed; then discharge through this waste pipe 60, greatly extend the work-ing life of this filter core 40. When the pressure in pneumatic tube is greatly about 50Kpa to 200kpa, the speed of sample gas can become slowly relative to the speed of the air-flow in pneumatic tube. Now, sample gas rising in the process of pneumatic tube top, macrobead and a large amount of dust, steam can because self gravitation reasons and be pulled to sample flow of air direction under Venturi principle effect, thus macrobead, a large amount of dust and steam in elementary removal sample gas. Remaining small-particle and little dust rise to this baffle plate 111 place on continuing, because the stopping cause of this baffle plate 111 stops in the lower section of this baffle plate 111, remaining sample gas enters into the top of this baffle plate 111 by this baffle plate 111 marginal gap 112, and a part by this filter core 40 enter sampling tracheae 31 for detecting, another part enters this bundle mouth section 122 place, and is expelled in original gas pipe line by this waste pipe 60 or other suitable safety zones.
Optimize:
The internal diameter of this inlet pipe 20 is 12 ~ 20mm, the internal diameter of tracheae 31 of sampling is 4 ~ 6mm, the internal diameter of waste pipe 60 is 8 ~ 20mm. Like this, it is ensured that this filter core 40 is had and suitable washes away dynamics.
Tubaeform big in outer end of this inlet pipe 20, the length of this inlet pipe 20 is at least 100mm. Like this, it is convenient to dock with pneumatic tube. Certainly, the inlet pipe 20 of flared structure and aforesaid sampling tracheae 31 itself also define the dust fall passage that has Venturi siphon function.
The foregoing is only preferred embodiment of the present utility model; not thereby patent scope of the present utility model is limited; every utilize the utility model specification sheets and accompanying drawing content to do equivalent structure or equivalence flow process conversion; or directly or indirectly it is used in other relevant technical fields, all it is included in scope of patent protection of the present utility model with reason.

Claims (4)

1. there is the sampling probe of self-cleaning function, comprise and connect block (10), this connection block (10) is provided with the air flue (11) of the upper and lower end face of this connection block (10) through, the lower port portion of this air flue (11) is connected with inlet pipe (20), upper end oral area is connected with air outlet adapter (30), this air outlet adapter (30) is connected with sampling tracheae (31), and this air outlet adapter (30) is furnished with filter core (40) prepared by stainless material, it is characterised in that:
The left side being positioned at this air flue (11) in described connection block (10) is also provided with Venturi tube (12), this Venturi tube (12) comprise under be arranged in order entrance section (121), bundle mouth section (122), larynx road (123) and expansion section (124);
The spacing of the admission piece (50) being inserted with a doline in described entrance section (121), the opening portion outer rim of this admission piece (50) and the sidewall in this larynx road (123) is c;
Described admission piece (50) upper end is connected with cleaning compressed air source or compression source nitrogen (70);
The bottom of described expansion section (124) is connected with waste pipe (60);
The upper left-hand face of described air flue (11) is provided with the baffle plate (111) extended to the right, between the right-hand member of this baffle plate (111) and the face, right side of this air flue (11), there is gap (112), the width in this gap (112) is a, the top being positioned at this baffle plate (111) in the left-hand face of this air flue (11) is provided with communicating aperture (113), and the height of this communicating aperture (113) is b;
Meanwhile,
The right side of this entrance section (121) is connected this communicating aperture (113);
a��b��c��
2. the sampling probe with self-cleaning function according to claim 1, it is characterised in that: the internal diameter of described inlet pipe (20) is 12 ~ 20mm, the internal diameter of tracheae (31) of sampling is 4 ~ 6mm, the internal diameter of waste pipe (60) is 8 ~ 20mm.
3. the sampling probe with self-cleaning function according to claim 1, it is characterised in that: tubaeform big in outer end of described inlet pipe (20).
4. the sampling probe with self-cleaning function according to claim 1, it is characterised in that: the length of described inlet pipe (20) is at least 100mm.
CN201620000914.2U 2016-01-04 2016-01-04 Sampling probe with from cleaning function Expired - Fee Related CN205280461U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201620000914.2U CN205280461U (en) 2016-01-04 2016-01-04 Sampling probe with from cleaning function

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201620000914.2U CN205280461U (en) 2016-01-04 2016-01-04 Sampling probe with from cleaning function

Publications (1)

Publication Number Publication Date
CN205280461U true CN205280461U (en) 2016-06-01

Family

ID=56065027

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201620000914.2U Expired - Fee Related CN205280461U (en) 2016-01-04 2016-01-04 Sampling probe with from cleaning function

Country Status (1)

Country Link
CN (1) CN205280461U (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105547768A (en) * 2016-01-04 2016-05-04 梅思安(中国)安全设备有限公司 Sampling probe with self-cleaning function

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105547768A (en) * 2016-01-04 2016-05-04 梅思安(中国)安全设备有限公司 Sampling probe with self-cleaning function
CN105547768B (en) * 2016-01-04 2018-03-16 梅思安(中国)安全设备有限公司 sampling probe with self-cleaning function

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C14 Grant of patent or utility model
GR01 Patent grant
CF01 Termination of patent right due to non-payment of annual fee
CF01 Termination of patent right due to non-payment of annual fee

Granted publication date: 20160601

Termination date: 20180104