CN204461535U - High precision differential pressure type liquid level measurement device - Google Patents
High precision differential pressure type liquid level measurement device Download PDFInfo
- Publication number
- CN204461535U CN204461535U CN201520075800.XU CN201520075800U CN204461535U CN 204461535 U CN204461535 U CN 204461535U CN 201520075800 U CN201520075800 U CN 201520075800U CN 204461535 U CN204461535 U CN 204461535U
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- China
- Prior art keywords
- plemum
- connecting pipe
- negative pressure
- pressure chamber
- liquid level
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- Expired - Fee Related
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Abstract
The utility model relates to a kind of high precision differential pressure type liquid level measurement device, this measurement mechanism comprises liquid level container to be measured, transmitter, plemum connecting pipe and negative pressure chamber's connecting pipe, the plemum of transmitter is communicated with the low side of liquid level container to be measured by plemum connecting pipe, the negative pressure chamber of transmitter is communicated with the high-end of survey liquid level container by negative pressure chamber's connecting pipe, negative pressure chamber's connecting pipe most significant end external connecting negative pressure room liquid injection pipe, the external plemum liquid injection pipe of most significant end of plemum connecting pipe, negative pressure chamber's liquid injection pipe and plemum liquid injection pipe are provided with plug or stop valve.Compared with prior art, device of the present utility model can offset negative pressure chamber's connecting pipe affects Measurement accuracy because pouring in down a chimney water, can offset the impact on instrument measurement because of explained hereafter fluctuation.
Description
Technical field
The utility model relates to a kind of liquid level emasuring device, especially relates to a kind of high precision differential pressure type liquid level measurement device.
Background technology
Differential pressure type level gauge is applied very extensive in chemical enterprise, can measure the liquid level of various medium.But sometimes, the impact of technological fluctuation directly can produce deviation to liquid level gauge.When a measurement torch tank body water sealing liquid position, the medium of measurement is water, and this water level has fluctuation, sometimes even can arrive canful.And during liquid level gauge measurement, be by plemum connecting pipe, the static pressure of liquid is imported transmitter, and negative pressure chamber is logical air, when tank level changes, the pressure of transmitter plemum impression will change, and now liquid level just can be calculated by electronics computing module.But when tank body water level is full, water can overflow to pour in down a chimney bears connecting pipe to transmitter, and now, the pressure of transmitter plemum impression will deduct the pressure of negative pressure chamber's impression.So when tank body is full, liquid level will be forbidden, and the water poured in down a chimney just can not arranged all the time, causes during non-canful and is also forbidden.
Utility model content
The purpose of this utility model be exactly in order to overcome above-mentioned prior art exist defect and provide a kind of structure simple, easy to use, measure high precision differential pressure type liquid level measurement device accurately.
The purpose of this utility model can be achieved through the following technical solutions:
A kind of high precision differential pressure type liquid level measurement device, comprise liquid level container to be measured, transmitter, plemum connecting pipe and negative pressure chamber's connecting pipe, the plemum of described transmitter is communicated with the low side of liquid level container to be measured by plemum connecting pipe, the negative pressure chamber of transmitter is communicated with the high-end of survey liquid level container by negative pressure chamber's connecting pipe, described negative pressure chamber's connecting pipe most significant end external connecting negative pressure room liquid injection pipe, the external plemum liquid injection pipe of most significant end of described plemum connecting pipe.
Described negative pressure chamber's liquid injection pipe and plemum liquid injection pipe are provided with plug or stop valve.
Described plemum connecting pipe and negative pressure chamber's connecting pipe are respectively equipped with hand valve.
Described plemum connecting pipe is identical with negative pressure chamber's connecting pipe caliber and specification.
Described plemum connecting pipe, negative pressure chamber's connecting pipe, negative pressure chamber's liquid injection pipe and plemum liquid injection pipe all adopt the body of identical caliber.
Described plemum connecting pipe and the arranged outside of negative pressure chamber's connecting pipe have the constant temperature sleeve pipe for passing into circulation constant temperature water.
Plemum and the negative pressure chamber of described transmitter are equipped with drain plug.
Compared with prior art, the utility model has the following advantages and beneficial effect:
(1) device of the present utility model change compared with traditional differential pressure type liquid level measurement device is very little, directly can change on original device basic, very low compared to other measurement mechanism expenses, without the need to a large amount of expense.
(2) device of the present utility model can offset negative pressure chamber's connecting pipe affects Measurement accuracy because pouring in down a chimney water, can offset the impact on instrument measurement because of explained hereafter fluctuation;
(3) when using device of the present utility model, for being full of liquid condition in plemum and negative pressure chamber, not containing gas, decreasing the corrosion of plemum and negative pressure chamber inside, improve the serviceable life of transmitter.
Accompanying drawing explanation
Fig. 1 is the structural representation of high precision differential pressure type liquid level measurement device of the present utility model.
Embodiment
Below in conjunction with the drawings and specific embodiments, the utility model is described in detail.
Embodiment
A kind of high precision differential pressure type liquid level measurement device, as shown in Figure 1, comprise liquid level container 1 to be measured, transmitter 2, plemum connecting pipe 3 and negative pressure chamber's connecting pipe 4, the plemum of transmitter 2 is communicated with the low side of liquid level container 1 to be measured by plemum connecting pipe 3, the negative pressure chamber of transmitter 2 is communicated with the high-end of survey liquid level container 1 by negative pressure chamber's connecting pipe 4, negative pressure chamber's connecting pipe 4 most significant end external connecting negative pressure room liquid injection pipe 5, the external plemum liquid injection pipe 6 of most significant end of plemum connecting pipe 3.Negative pressure chamber's liquid injection pipe 5 and plemum liquid injection pipe 6 are provided with plug 7 or stop valve.Plemum connecting pipe 3 and negative pressure chamber's connecting pipe 4 are respectively equipped with hand valve 8.Plemum connecting pipe 3, negative pressure chamber's connecting pipe 4, negative pressure chamber's liquid injection pipe 5 and plemum liquid injection pipe 6 all adopt the body of identical caliber and specification.Plemum connecting pipe 3 has the constant temperature sleeve pipe for passing into circulation constant temperature water with the arranged outside of negative pressure chamber's connecting pipe 4.Plemum and the negative pressure chamber of transmitter 2 are equipped with drain plug.
When using high precision differential pressure type liquid level measurement device as shown in Figure 1, comprise the following steps:
Step one: fill testing liquid medium by the plemum of transmitter 2, negative pressure chamber, plemum connecting pipe 3 and negative pressure chamber's connecting pipe 4 by negative pressure chamber's liquid injection pipe 5 and plemum liquid injection pipe 6, then by plug 7 or stop valve, negative pressure chamber's liquid injection pipe 5 and plemum liquid injection pipe 6 are sealed, displayed value now on transmitter 2 is the differential static pressure of plemum and negative pressure chamber, now, with instrumentation, differential static pressure now can be offset is zero;
Step 2: open plemum connecting pipe 3 and the hand valve on negative pressure chamber's connecting pipe 4, liquid medium in liquid level container 1 to be measured produces pressure to the plemum of transmitter and negative pressure chamber, the displayed value displayed value deducted in step 2 now on transmitter 2 is the true liquid level in liquid level container 1 to be measured, because plemum connecting pipe 3 and negative pressure chamber's connecting pipe 4 are all filled with water, do not produce measured deviation by level fluctuation in liquid level container 1 to be measured, therefore measurement result is accurate.
Above-mentioned is can understand for ease of those skilled in the art and use utility model to the description of embodiment.Person skilled in the art obviously easily can make various amendment to these embodiments, and General Principle described herein is applied in other embodiments and need not through performing creative labour.Therefore, the utility model is not limited to above-described embodiment, and those skilled in the art, according to announcement of the present utility model, do not depart from improvement that the utility model category makes and amendment all should within protection domain of the present utility model.
Claims (7)
1. a high precision differential pressure type liquid level measurement device, comprise liquid level container (1) to be measured, transmitter (2), plemum connecting pipe (3) and negative pressure chamber's connecting pipe (4), the plemum of described transmitter (2) is communicated with the low side of liquid level container (1) to be measured by plemum connecting pipe (3), the negative pressure chamber of transmitter (2) is communicated with the high-end of survey liquid level container (1) by negative pressure chamber's connecting pipe (4), it is characterized in that, described negative pressure chamber's connecting pipe (4) most significant end external connecting negative pressure room liquid injection pipe (5), the external plemum liquid injection pipe (6) of most significant end of described plemum connecting pipe (3).
2. a kind of high precision differential pressure type liquid level measurement device according to claim 1, is characterized in that, described negative pressure chamber's liquid injection pipe (5) and plemum liquid injection pipe (6) are provided with plug (7) or stop valve.
3. a kind of high precision differential pressure type liquid level measurement device according to claim 1, is characterized in that, described plemum connecting pipe (3) and negative pressure chamber's connecting pipe (4) are respectively equipped with hand valve (8).
4. a kind of high precision differential pressure type liquid level measurement device according to claim 1, is characterized in that, described plemum connecting pipe (3) is identical with negative pressure chamber's connecting pipe (4) caliber and specification.
5. a kind of high precision differential pressure type liquid level measurement device according to claim 1, it is characterized in that, described plemum connecting pipe (3), negative pressure chamber's connecting pipe (4), negative pressure chamber's liquid injection pipe (5) and plemum liquid injection pipe (6) all adopt the body of identical caliber.
6. a kind of high precision differential pressure type liquid level measurement device according to claim 1, is characterized in that, described plemum connecting pipe (3) has the constant temperature sleeve pipe for passing into circulation constant temperature water with the arranged outside of negative pressure chamber's connecting pipe (4).
7. a kind of high precision differential pressure type liquid level measurement device according to claim 1, is characterized in that, plemum and the negative pressure chamber of described transmitter (2) are equipped with drain plug.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520075800.XU CN204461535U (en) | 2015-02-03 | 2015-02-03 | High precision differential pressure type liquid level measurement device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520075800.XU CN204461535U (en) | 2015-02-03 | 2015-02-03 | High precision differential pressure type liquid level measurement device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204461535U true CN204461535U (en) | 2015-07-08 |
Family
ID=53668406
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520075800.XU Expired - Fee Related CN204461535U (en) | 2015-02-03 | 2015-02-03 | High precision differential pressure type liquid level measurement device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204461535U (en) |
-
2015
- 2015-02-03 CN CN201520075800.XU patent/CN204461535U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20150708 Termination date: 20200203 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |