CN104296827A - Anti-crystallization liquid level meter - Google Patents

Anti-crystallization liquid level meter Download PDF

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Publication number
CN104296827A
CN104296827A CN201410596009.3A CN201410596009A CN104296827A CN 104296827 A CN104296827 A CN 104296827A CN 201410596009 A CN201410596009 A CN 201410596009A CN 104296827 A CN104296827 A CN 104296827A
Authority
CN
China
Prior art keywords
flange
liquid level
bellows
level meter
flanges
Prior art date
Application number
CN201410596009.3A
Other languages
Chinese (zh)
Other versions
CN104296827B (en
Inventor
潘树荣
戴守伦
Original Assignee
安徽金禾实业股份有限公司
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 安徽金禾实业股份有限公司 filed Critical 安徽金禾实业股份有限公司
Priority to CN201410596009.3A priority Critical patent/CN104296827B/en
Publication of CN104296827A publication Critical patent/CN104296827A/en
Application granted granted Critical
Publication of CN104296827B publication Critical patent/CN104296827B/en

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Abstract

The invention discloses an anti-crystallization liquid level meter. The liquid level meter is characterized in that (a) improved flanges and film boxes include DN100 flanges and stainless steel tube necks with the diameter of 100 mm, each DN100 flange is provided with a back blowing hole and a wire hole, one end of each tube neck is connected with a DN50 flange, and each DN50 flange is connected with one film box; (b) each improved tube neck extends to the inside of equipment so that the measuring film boxes can extend deep into the equipment, then the DN100 flanges are welded to the equipment, the back blowing hole in each DN100 flange is provided with a back blowing tube and is connected with a pressure source, and capillary tubes are connected with the insides of the wire holes in the DN100 flanges and are connected with the film boxes and a transformer. The liquid level meter has the advantages that it is guaranteed that normal use of a measuring instrument is not influenced by to-be-measured media which are prone to crystallizing or depositing, and accordingly the service life of the liquid level meter is prolonged; safety problems during chemical industry production are controlled and stabilized to some extent, and unsafe factors existing in chemical industry production are reduced.

Description

A kind of crystallization-preventive liquid level gauge
Technical field:
The present invention relates to a kind of liquid level gauge, particularly a kind of crystallization-preventive liquid level gauge.
Background technology:
Existing pair of flange form liquid level gauge mounting means as shown in Figure 1, mainly contains the pipe neck on the equipment of being welded on and flange, bellows, kapillary and transmitter composition.Kapillary two ends are welded on respectively to be measured on bellows and differential pressure transmitter, then is fixed by bolts on the flange of equipment by bellows.When measuring the medium of some easy crystallizations or deposition, because the bellows of existing pair of flange differential pressure levelmeter is connected in main equipment outside by pipe neck and flange, cause the certain media crystallization because temperature reduces herein, form deposition because do not flow, cause alluvial easily make the sediment at pipe neck place more and more and make the blocked dead band of causing of pressure unit bellows so measured medium crystal or sediment are little by little accumulated, affect the normal use of measurement instrument.
Summary of the invention:
Object of the present invention is exactly will solve measured medium crystallization or deposition when existing liquid level gauge is measured easily to cause the problem in dead band, provides a kind of crystallization-preventive liquid level gauge.
Technical scheme of the present invention is as follows:
A kind of crystallization-preventive liquid level gauge, is made up of transmitter, kapillary, bellows, flange, transformation accessory, instrument pressure guiding pipe etc., it is characterized in that transformation accessory has done following improvement:
A. the flange improved and bellows, comprise the stainless-steel tube neck of DN100 flange and diameter 100mm, and arrange blowback hole and wire guide on DN100 flange, connects DN50 flange, DN50 flange connects bellows in pipe neck one end;
B, by improve each pipe neck extend to device interior, measurement bellows is made to go deep into device interior, again by DN100 flange welding on equipment, in blowback hole on each DN100 flange, anti-blowpipe be set and be connected to compressor pneumatic supply, connecting kapillary in the wire guide on each DN100 flange to bellows and transmitter.
In the present invention, pipe neck length increases and extends to device interior, measuring diaphragm is made to go deep into device interior, allow the pressure that bellows face and flow media direct contact measurement fluid column height produce, the flowing of medium makes bellows face produce crystallization, extension use flange and original equipment connection.
Blowback hole is set on flange in addition, then instrument air is connected on blowback hole by gauge valve and instrument pressure guiding pipe, utilize blowback air to prevent crystallization to be attached on bellows.
The invention has the advantages that:
1. the invention provides a kind of crystallization-preventive liquid level gauge, ensure that easy crystallization or easily calm measured medium do not affect the normal use of measurement instrument, thus extend the service time of liquid level gauge.
2. control to a certain extent and stabilize the safety problem in chemical process, reducing the non-safety factor existed in chemical process.
Accompanying drawing illustrates:
Fig. 1 is existing liquid level gauge schematic diagram;
Fig. 2 is the flange of transformation and the schematic diagram of bellows;
Fig. 3 is the schematic diagram of crystallization-preventive liquid level gauge.
Specific implementation method:
The flange of transformation as shown in Figure 2 and bellows, comprise the stainless-steel tube neck of DN100 flange and diameter 100mm, and arrange blowback hole and wire guide on DN100 flange, utilizes blowback air to prevent crystallization to be attached on bellows.At pipe neck one end blank off perforate welding formation DN50 flange again, DN50 flange connects the bellows of transmitter, object the transmitter bellows being originally arranged on device external is changed into extension be installed to device interior, stops the generation of dielectric deposition thing in bellows face.
Each pipe neck length as shown in Figure 3, extends to device interior, makes measurement bellows go deep into device interior by a kind of crystallization-preventive liquid level gauge provided by the invention, then by DN100 flange welding on equipment.Arrange anti-blowpipe in blowback hole on each DN100 flange, anti-blowpipe is connected to compressor pneumatic supply.Kapillary is connected to bellows and transmitter in wire guide on each DN100 flange.

Claims (1)

1. a crystallization-preventive liquid level gauge, is made up of transmitter, kapillary, bellows, flange and transmitter etc., it is characterized in that:
A. the flange improved and bellows, comprise the stainless-steel tube neck of DN100 flange and diameter 100mm, and arrange blowback hole and wire guide on DN100 flange, connects DN50 flange, DN50 flange connects bellows in pipe neck one end;
B, by improve each pipe neck extend to device interior, measurement bellows is made to go deep into device interior, again by DN100 flange welding on equipment, in blowback hole on each DN100 flange, anti-blowpipe be set and be connected to compressor pneumatic supply, connecting kapillary in the wire guide on each DN100 flange to bellows and transmitter.
CN201410596009.3A 2014-10-30 2014-10-30 A kind of crystallization-preventive liquid level gauge CN104296827B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201410596009.3A CN104296827B (en) 2014-10-30 2014-10-30 A kind of crystallization-preventive liquid level gauge

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201410596009.3A CN104296827B (en) 2014-10-30 2014-10-30 A kind of crystallization-preventive liquid level gauge

Publications (2)

Publication Number Publication Date
CN104296827A true CN104296827A (en) 2015-01-21
CN104296827B CN104296827B (en) 2017-12-26

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Family Applications (1)

Application Number Title Priority Date Filing Date
CN201410596009.3A CN104296827B (en) 2014-10-30 2014-10-30 A kind of crystallization-preventive liquid level gauge

Country Status (1)

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CN (1) CN104296827B (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105157786A (en) * 2015-06-02 2015-12-16 广州市心德实业有限公司 Differential pressure level meter with fluid isolation device

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN201666807U (en) * 2010-03-17 2010-12-08 河北钢铁股份有限公司邯郸分公司 Device for preventing pressure pipe of transmitter meter from being blocked
CN201867198U (en) * 2010-11-26 2011-06-15 天津肯泰仪表有限公司 Insertion device for insertion of flange transmitter
CN102853876A (en) * 2012-08-30 2013-01-02 中国昆仑工程公司 Anti-blocking air blowing liquid level meter applicable to polyester reactor
CN202793527U (en) * 2012-08-21 2013-03-13 中冶东方工程技术有限公司上海分公司 Automatic blowing device for ultrasonic liquid level gauge
CN204202688U (en) * 2014-10-30 2015-03-11 安徽金禾实业股份有限公司 A kind of crystallization-preventive liquid level gauge

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN201666807U (en) * 2010-03-17 2010-12-08 河北钢铁股份有限公司邯郸分公司 Device for preventing pressure pipe of transmitter meter from being blocked
CN201867198U (en) * 2010-11-26 2011-06-15 天津肯泰仪表有限公司 Insertion device for insertion of flange transmitter
CN202793527U (en) * 2012-08-21 2013-03-13 中冶东方工程技术有限公司上海分公司 Automatic blowing device for ultrasonic liquid level gauge
CN102853876A (en) * 2012-08-30 2013-01-02 中国昆仑工程公司 Anti-blocking air blowing liquid level meter applicable to polyester reactor
CN204202688U (en) * 2014-10-30 2015-03-11 安徽金禾实业股份有限公司 A kind of crystallization-preventive liquid level gauge

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105157786A (en) * 2015-06-02 2015-12-16 广州市心德实业有限公司 Differential pressure level meter with fluid isolation device
CN105157786B (en) * 2015-06-02 2018-10-12 广州市心德实业有限公司 Differential pressure levelmeter with fluid isolation device

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Effective date of registration: 20200709

Address after: Jianhe Road, Yanhua Industrial Park, Dingyuan County, Chuzhou City, Anhui Province

Patentee after: Anhui Jinxuan Technology Co.,Ltd.

Address before: 239200 No. 127 East Main Street, Lai County, Anhui, Chuzhou

Patentee before: ANHUI JINGHE INDUSTRIAL Co.,Ltd.

TR01 Transfer of patent right