CN202661131U - Improved liquid level measurement device for phosphoric acid condensation evaporation chamber - Google Patents
Improved liquid level measurement device for phosphoric acid condensation evaporation chamber Download PDFInfo
- Publication number
- CN202661131U CN202661131U CN 201220263327 CN201220263327U CN202661131U CN 202661131 U CN202661131 U CN 202661131U CN 201220263327 CN201220263327 CN 201220263327 CN 201220263327 U CN201220263327 U CN 201220263327U CN 202661131 U CN202661131 U CN 202661131U
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- Prior art keywords
- differential pressure
- connecting pipe
- evaporation chamber
- pressure transmitter
- liquid level
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- 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 - Lifetime
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Abstract
The utility model discloses an improved liquid level measurement device for a phosphoric acid condensation evaporation chamber. The device comprises a differential pressure transmitter and an evaporation chamber. The anode of the differential pressure transmitter is connected with the lower part of one side of the evaporation chamber through a capillary tube, and the cathode of the differential pressure transmitter is connected with the top of the evaporation chamber through a connecting pipe. A gate valve is arranged on the upper part of the connecting pipe. A blowdown valve is arranged on the lower part of the connecting pipe. By the device, a single-flange differential pressure transmitter cannot directly measure the pressure of a closed container, a vacuum degree is required to be balanced, and the connecting pipe is connected to the top of the evaporation chamber from the negative pressure side of the transmitter, and exhausts the pressure of the container, so that a connector of the connecting pipe for balancing the vacuum degree is difficult to block, and then measurement accuracy is high; and the single-flange differential pressure container is provided with only one diaphragm capsule, so that the corrosion rate of the diaphragm capsule is lowered compared with that of each diaphragm capsule of a double-flange differential pressure transmitter with two diaphragm capsules.
Description
Technical field
The utility model relates to the closed container liquid level emasuring device, especially a kind of improved Phosphoric Acid Concentration vaporization chamber liquid level emasuring device.
Background technology
Phosphoric Acid Concentration vaporization chamber level gauging, existing with two flange differential pressure type level gauges, principle of work is as follows:
The flange of transmitter flange direct and on the container is connected, measurement metal bellows as sensitive element, be connected with the measuring chamber of transmitter through kapillary, plemum connects container bottom, negative pressure chamber connects container top, at bellows, be filled with silicone oil in the closed system that kapillary and measuring chamber form, play the buffer action of differential pressure transmitter and measured medium as pressure transmitting medium.But there are some shortcomings in it in measuring process: the easy fouling of negative electrode kapillary, and easily stifled, the accuracy that impact is measured; Corrosion to bellows is larger, and serviceable life is short.
Summary of the invention
For the deficiencies in the prior art part, the utility model aims to provide a kind of improved Phosphoric Acid Concentration vaporization chamber liquid level emasuring device, guarantees that being difficult for producing fouling stops up longer service life.
The technical solution adopted in the utility model: a kind of improved Phosphoric Acid Concentration vaporization chamber liquid level emasuring device, comprise differential pressure transmitter and vaporization chamber, the anode of differential pressure transmitter is connected with vaporization chamber one side lower part by kapillary, the negative electrode of differential pressure transmitter is connected with the vaporization chamber top by connecting pipe, is provided with gate valve on connecting pipe top.
Be provided with blowoff valve in the connecting pipe bottom.
Adopt said apparatus, because single flange differential pressure transmitter can not directly be measured the pressure of closed container, thus must its vacuum tightness of balance, connecting pipe is connected to the top of vaporization chamber from the suction side of differential pressure transmitter, take out the pressure of most container by connecting pipe; The connecting pipe connector of balance vacuum is difficult for being blocked like this, so that measurement accuracy is high, single flange differential pressure transmitter only has a bellows, reduces with respect to the double flanges differential pressure transmitter bellows of the two bellows rate that is corroded.
Description of drawings
Fig. 1 is existing Phosphoric Acid Concentration vaporization chamber liquid level emasuring device schematic diagram;
Fig. 2 the utility model structural representation;
In the accompanying drawing: 1 differential pressure transmitter, 2 kapillaries, 3 vaporization chambers, 4 gate valves, 5 connecting pipes, 6 blowoff valves.
Embodiment
The utility model is described in further detail below in conjunction with accompanying drawing.
Have Phosphoric Acid Concentration vaporization chamber liquid level emasuring device now as shown in Figure 1, the anode of differential pressure transmitter is connected with vaporization chamber by kapillary,, the negative electrode of differential pressure transmitter is connected with vaporization chamber by kapillary, and the easy fouling of kapillary is stopped up, and needs the dismounting cleaning, affects and produces.
As shown in Figure 2, the anode of differential pressure transmitter 1 is connected with vaporization chamber 3 one side lower parts by kapillary 2, and the negative electrode of differential pressure transmitter 1 is connected with vaporization chamber 3 tops by connecting pipe 5, is provided with gate valve 4 on connecting pipe 5 tops, is provided with blowoff valve 6 in connecting pipe 5 bottoms.Connecting pipe 5 is selected the DN22mm stainless-steel tube, takes out the pressure of most container by connecting pipe 5, and 4-20mA is to the liquid level counter in differential pressure transmitter output, finally obtains level value.
Owing to needing to detect connecting pipe whether obstruction is arranged; in connecting pipe 5 bottoms one blowoff valve 6 is set; open under normal circumstances blowoff valve 6 at the utility model; connecting pipe 5 does not stop up if air-flow is up taken out; otherwise connecting pipe 5 stops up; then need to open evaporation joint flange place, top, Room 3 and check cleaning; in addition for preventing gas; liquid phase is to the corrosion of differential pressure transmitter 1 suction side; at connecting pipe one gate valve 4 is installed; when working, opens the utility model gate valve 4; guaranteeing the balance of vacuum tightness, quit work or vacuum tightness closing gate valve 4 when effluxing at the utility model, play the effect of protection differential pressure transmitter 1 suction side.
Claims (2)
1. improved Phosphoric Acid Concentration vaporization chamber liquid level emasuring device, comprise differential pressure transmitter (1) and vaporization chamber (3), it is characterized in that: the anode of differential pressure transmitter (1) is connected with vaporization chamber (3) one side lower parts by kapillary (2), the negative electrode of differential pressure transmitter (1) is connected with vaporization chamber (3) top by connecting pipe (5), is provided with gate valve (4) on connecting pipe (5) top.
2. described improved Phosphoric Acid Concentration vaporization chamber liquid level emasuring device according to claim 1 is characterized in that: be provided with blowoff valve (6) in connecting pipe (5) bottom.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220263327 CN202661131U (en) | 2012-06-06 | 2012-06-06 | Improved liquid level measurement device for phosphoric acid condensation evaporation chamber |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220263327 CN202661131U (en) | 2012-06-06 | 2012-06-06 | Improved liquid level measurement device for phosphoric acid condensation evaporation chamber |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202661131U true CN202661131U (en) | 2013-01-09 |
Family
ID=47456033
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220263327 Expired - Lifetime CN202661131U (en) | 2012-06-06 | 2012-06-06 | Improved liquid level measurement device for phosphoric acid condensation evaporation chamber |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202661131U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104482986A (en) * | 2014-12-30 | 2015-04-01 | 瓮福（集团）有限责任公司 | Method for measuring liquid level of closed vessel |
| 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 |
| CN106323536A (en) * | 2016-10-13 | 2017-01-11 | 北京神雾环境能源科技集团股份有限公司 | Staged pressure difference measuring method for high pressure closed container |
| CN109253775A (en) * | 2018-11-22 | 2019-01-22 | 佛山高富中石油燃料沥青有限责任公司 | A kind of transition apparatus of high-viscosity high-elasticity chemical liquor and easy coking level gauging |
-
2012
- 2012-06-06 CN CN 201220263327 patent/CN202661131U/en not_active Expired - Lifetime
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104482986A (en) * | 2014-12-30 | 2015-04-01 | 瓮福（集团）有限责任公司 | Method for measuring liquid level of closed vessel |
| 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 |
| CN106323536A (en) * | 2016-10-13 | 2017-01-11 | 北京神雾环境能源科技集团股份有限公司 | Staged pressure difference measuring method for high pressure closed container |
| CN109253775A (en) * | 2018-11-22 | 2019-01-22 | 佛山高富中石油燃料沥青有限责任公司 | A kind of transition apparatus of high-viscosity high-elasticity chemical liquor and easy coking level gauging |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20130109 |