CN204422012U - Anticorrosion static-pressure type liquid level transmitter - Google Patents
Anticorrosion static-pressure type liquid level transmitter Download PDFInfo
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- CN204422012U CN204422012U CN201420796355.1U CN201420796355U CN204422012U CN 204422012 U CN204422012 U CN 204422012U CN 201420796355 U CN201420796355 U CN 201420796355U CN 204422012 U CN204422012 U CN 204422012U
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Abstract
The utility model discloses anticorrosion static-pressure type liquid level transmitter, comprise the discharge that cavity is offered in inside and the transmitter gauge outfit be communicated with discharge, in the upper end of described discharge, pressure transducer diaphragm is installed, and pressure transducer diaphragm is between cavity and transmitter gauge outfit, the end of described discharge is provided with base, the middle part of base offers the cavity that prestores, the bottom of the described cavity that prestores is in communication with the outside by longitudinal inlet opening, is provided with the horizontal inlet opening be communicated with longitudinal inlet opening at the two ends of base.The cavity that prestores is equivalent to a sucker, tightly be connected with bottom liquid storage container, namely by the liquid gravity prestored in cavity, discharge is increased greatly at liquid storage container internal stability, simultaneously in cavity the air pressure of liquid level upper end to the liquid effects under liquid level, avoid the equipment be connected with discharge outside to affect the stability of discharge in liquid storage container when colliding or be subjected to displacement, and then improve the degree of accuracy when liquid level gauging.
Description
Technical field
The utility model relates to a kind of transmitter, specifically refers to anticorrosion static-pressure type liquid level transmitter.
Background technology
Fluid level transmitter is extension to pressure unit technology and development, according to the liquid of different specific weight at differing heights produce the linear principle of pressure, realize that the volume to water, oil and pastel, liquid are high, the Measurement accuracy of weight and transmission.Owing to being applicable to continuous detecting under the mal-condition such as High Temperature High Pressure, deep-etching, easily crystallization, easily blocking, capacitive liquid level transmitter plays an important role in level gauging.Capacitive liquid level transmitter is based on the proportional principle of the height of surveyed fluid pressure and this liquid, and the capacitance variations produced in a liquid by two Metallic rod is converted to electric signal and measures.Capacitive liquid level transmitter is widely used in the level gauging of medium of petrochemical complex, metallurgy, electric power, pharmacy, water supply and sewage, field of Environment Protection.
Existing static-pressure type liquid level transmitter is the pressure change of being measured tank base liquid by pressure sensing, thus measures the change of liquid level.But the maximum feature of this metering system is pressure transducer must install at the bottom of tank, and sensor diaphragm and liquid comes into contact, if measured medium is corrosive, then will shortens the serviceable life of sensor or cannot use at all; And must ensure to fix with the stability of external device after liquid storage container put into by sensor, once there is deviation or slightly movement, sensor just can run-off the straight, and then reduces the degree of accuracy of data when measuring.
Utility model content
The purpose of this utility model is to provide anticorrosion static-pressure type liquid level transmitter, realizes the level gauging to corrosive liquids, ensures that storage transmitter is placed with the stability of liquid comes into contact part in liquid container simultaneously, improves degree of accuracy when measuring.
The purpose of this utility model is achieved through the following technical solutions:
Anticorrosion static-pressure type liquid level transmitter, comprise the discharge that cavity is offered in inside and the transmitter gauge outfit be communicated with discharge, in the upper end of described discharge, pressure transducer diaphragm is installed, and pressure transducer diaphragm is between cavity and transmitter gauge outfit, the end of described discharge is provided with base, the middle part of base offers the cavity that prestores, described in the prestore bottom of cavity be in communication with the outside by longitudinal inlet opening, be provided with the horizontal inlet opening be communicated with longitudinal inlet opening at the two ends of base.In to corrosivity liquid storage container during the measurement of liquid surface level, if being directly placed in liquid storage container by sensor easily causes its body impaired, and then cause huge economic loss, applicant finds after deliberation, pass through the principle that surveyed fluid pressure is directly proportional to this liquid height, discharge is placed in liquid level and sensor is placed in liquid level outside, realize liquid level and sensor be separated avoid sensor to be corroded, when liquid level rises, liquid can enter the lower end of discharge, this rising of liquid in discharge, air in compressed pipe, the pressure that pressure transducer is responded to increases, by the processing of circuit of transmitter, export the 4 ~ 20mA standard signal corresponding with liquid level range, what pressure transducer diaphragm contacted is air but not measured medium, thus reach corrosion-resistant object,
Cavity is offered in the middle part of discharge in the application, be placed in after in liquid level in discharge lower end, liquid enters in cavity by the horizontal inlet opening on base and longitudinal inlet opening, under pressure transducer diaphragm inductive action, force value is transferred to transmitter gauge outfit to show numerical value, the cavity that prestores is offered in base, after liquid enters into the cavity that prestores, to make in the base of whole discharge fluid accumulation to certain volume, the cavity that prestores is equivalent to a sucker, tightly be connected with bottom liquid storage container, namely by the liquid gravity prestored in cavity, discharge is increased greatly at liquid storage container internal stability, simultaneously in cavity the air pressure of liquid level upper end to the liquid effects under liquid level, the stability of further raising discharge in liquid storage container, the equipment be connected with discharge outside is avoided to affect the stability of discharge in liquid storage container when colliding or be subjected to displacement, and then the degree of accuracy improved when liquid level gauging.
Further, prestore described in the cross section of cavity is circular arc or triangle.As preferably, the cross section of the cavity that prestores is set to circular arc or triangle, and then the center of gravity of the solution prestored in cavity is reduced, and is conducive to the stability improving discharge entirety, and then ensures the accuracy of pressure transducer diaphragm detected value.
Further, the internal diameter of described longitudinal inlet opening is greater than the internal diameter of described cavity.When measuring, the volume entering the liquid in cavity is greater than the liquid volume prestored in cavity usually, the internal diameter of longitudinal inlet opening is set to the internal diameter being greater than cavity by the utility model, make the liquid volume of upper and lower two parts of discharge and liquid weight is again roughly the same or the liquid gravity of discharge lower end is greater than the liquid weight of collector tube upper end, avoid the phenomenon of top heavy to occur, discharge is tightly placed on bottom liquid storage container with the stable placement preventing extraneous factor from affecting discharge.
Further, described horizontal inlet opening is inclined in base, and the water inlet end of horizontal inlet opening points to the bottom of liquid storage container.Horizontal inlet opening is obliquely installed, and the liquid when measuring slowly is entered and prestores in cavity, avoid the numerous bubbles in solution to be measured to enter into prestore cavity and cavity, avoid this type of bubble to increase the error of pressure transducer diaphragm induction.
Further, the angle that the axis of described horizontal inlet opening and the horizontal line at base place are formed is 30 ° ~ 40 °.As preferably, the angle that the horizontal line at the axis of horizontal inlet opening and base place is formed is arranged within the scope of 30 ° ~ 40 °, to the full extent while guarantee liquid slowly enters in the cavity that prestores, the bubble in liquid can be avoided to enter and to prestore in cavity, improve the precision of level detection.
The utility model compared with prior art, has following advantage and beneficial effect:
1, the cavity that prestores of the present utility model is equivalent to a sucker, tightly be connected with bottom liquid storage container, namely by the liquid gravity prestored in cavity, discharge is increased greatly at liquid storage container internal stability, simultaneously in cavity the air pressure of liquid level upper end to the liquid effects under liquid level, the stability of further raising discharge in liquid storage container, avoid the equipment be connected with discharge outside to affect the stability of discharge in liquid storage container when colliding or be subjected to displacement, and then improve the degree of accuracy when liquid level gauging;
2, the cross section of the cavity that prestores of the present utility model is set to circular arc or triangle, and then the center of gravity of the solution prestored in cavity is reduced, and is conducive to the stability improving discharge entirety, and then ensures the accuracy of pressure transducer diaphragm detected value;
3, horizontal inlet opening of the present utility model is obliquely installed, the liquid when measuring slowly is entered to prestore in cavity, avoid the numerous bubbles in solution to be measured to enter into prestore cavity and cavity, avoid this type of bubble to increase the error of pressure transducer diaphragm induction.
Accompanying drawing explanation
Accompanying drawing described herein is used to provide the further understanding to the utility model embodiment, forms a application's part, does not form the restriction to the utility model embodiment.In the accompanying drawings:
Fig. 1 is the utility model structural representation;
Fig. 2 is the A place enlarged drawing of Fig. 1;
Fig. 3 is the schematic diagram of embodiment 1;
Mark and corresponding parts title in accompanying drawing:
1-transmitter gauge outfit, 2-pressure transducer diaphragm, 3-cavity, 4-liquid level, 5-discharge, 6-prestore cavity, 7-base, the horizontal inlet opening of 8-, the longitudinal inlet opening of 9-.
Embodiment
Clearly understand for making the purpose of this utility model, technical scheme and advantage, below in conjunction with embodiment and accompanying drawing, the utility model is described in further detail, exemplary embodiment of the present utility model and explanation thereof are only for explaining the utility model, and conduct is not to restriction of the present utility model.
Embodiment 1
As shown in Figure 1 to Figure 3, the present embodiment comprises the discharge 5 that cavity 3 is offered in inside and the transmitter gauge outfit 1 be communicated with discharge 5, in the upper end of described discharge 5, pressure transducer diaphragm 2 is installed, and pressure transducer diaphragm 2 is between cavity 3 and transmitter gauge outfit 1, the end of described discharge 5 is provided with base 7, the middle part of base 7 offers the cavity 6 that prestores, the bottom of the described cavity 6 that prestores is in communication with the outside by longitudinal inlet opening 9, is provided with the horizontal inlet opening 8 be communicated with longitudinal inlet opening 9 at the two ends of base 7.Pass through the principle that surveyed fluid pressure is directly proportional to this liquid height, discharge 5 is placed in liquid level sensor is placed in liquid level outside, realize liquid level and sensor be separated avoid sensor to be corroded, when liquid level 4 rises, liquid can enter the lower end of discharge 5, this rising of liquid in discharge 5, air in compressed pipe, the pressure that pressure transducer is responded to increases, by the processing of circuit of transmitter, export the 4 ~ 20mA standard signal corresponding with liquid level range, what pressure transducer diaphragm 2 contacted is air but not measured medium, thus reach corrosion-resistant object,
Cavity 3 is offered in the middle part of discharge 5 in the application, be placed in after in liquid level in discharge 5 lower end, liquid enters in cavity 3 by the horizontal inlet opening on base 7 and longitudinal inlet opening 9, under pressure transducer diaphragm 2 inductive action, force value is transferred to transmitter gauge outfit 1 to show numerical value, the cavity 6 that prestores is offered in base 7, after liquid enters into the cavity 6 that prestores, in the base 7 making whole discharge 5, fluid accumulation is to certain volume, the cavity 6 that prestores is equivalent to a sucker, tightly be connected with bottom liquid storage container, namely by the liquid gravity prestored in cavity 6, discharge 5 is increased greatly at liquid storage container internal stability, simultaneously in cavity 3 air pressure of liquid level 4 upper end to the liquid effects under liquid level 4, the stability of further raising discharge 5 in liquid storage container, the equipment be connected with discharge 5 outside is avoided to affect the stability of discharge 5 in liquid storage container when colliding or be subjected to displacement, and then the degree of accuracy improved when liquid level gauging.
Wherein, the internal diameter of described longitudinal inlet opening 9 is greater than the internal diameter of described cavity 3.When measuring, the volume entering the liquid in cavity 3 is greater than the liquid volume prestored in cavity 6 usually, the internal diameter of longitudinal inlet opening 9 is set to the internal diameter being greater than cavity 3 by the utility model, make the liquid volume of discharge about 5 two parts and liquid weight is again roughly the same or the liquid gravity of discharge 5 lower end is greater than the liquid weight of collector tube upper end, avoid the phenomenon of top heavy to occur, discharge 5 is tightly placed on bottom liquid storage container with the stable placement preventing extraneous factor from affecting discharge 5.
As preferably, the cross section of the cavity 6 that prestores is set to circular arc or triangle, and then the center of gravity of the solution prestored in cavity 6 is reduced, and is conducive to the stability improving discharge 5 entirety, and then ensures the accuracy of pressure transducer diaphragm 2 detected value.
As preferably, described horizontal inlet opening 8 is inclined in base 7, and the water inlet end of horizontal inlet opening 8 points to the bottom of liquid storage container; The angle that the horizontal line at the axis of horizontal inlet opening 8 and base 7 place is formed is arranged within the scope of 30 ° ~ 40 °, can to the full extent while guarantee liquid slowly enters in the cavity 6 that prestores, avoid the bubble in liquid to enter and prestore in cavity 6, improve the precision of level detection.
Above-described embodiment; the purpose of this utility model, technical scheme and beneficial effect are further described; be understood that; the foregoing is only embodiment of the present utility model; and be not used in restriction protection domain of the present utility model; all within spirit of the present utility model and principle, any amendment made, equivalent replacement, improvement etc., all should be included within protection domain of the present utility model.
Claims (5)
1. anticorrosion static-pressure type liquid level transmitter, comprise the discharge (5) that cavity (3) are offered in inside and the transmitter gauge outfit (1) be communicated with discharge (5), it is characterized in that: in the upper end of described discharge (5), pressure transducer diaphragm (2) is installed, and pressure transducer diaphragm (2) is positioned between cavity (3) and transmitter gauge outfit (1), the end of described discharge (5) is provided with base (7), the middle part of base (7) offers the cavity that prestores (6), the bottom of the described cavity that prestores (6) is in communication with the outside by longitudinal inlet opening (9), the horizontal inlet opening (8) be communicated with longitudinal inlet opening (9) is provided with at the two ends of base (7).
2. anticorrosion static-pressure type liquid level transmitter according to claim 1, is characterized in that: described in the prestore cross section of cavity (6) be circular arc or triangle.
3. anticorrosion static-pressure type liquid level transmitter according to claim 1, is characterized in that: the internal diameter of described longitudinal inlet opening (9) is greater than the internal diameter of described cavity (3).
4. the anticorrosion static-pressure type liquid level transmitter according to claim 1 ~ 3 any one, is characterized in that: described horizontal inlet opening (8) is inclined in base (7), and the water inlet end of horizontal inlet opening (8) points to the bottom of liquid storage container.
5. anticorrosion static-pressure type liquid level transmitter according to claim 4, is characterized in that: the angle that the axis of described horizontal inlet opening (8) and the horizontal line at base (7) place are formed is 30 ° ~ 40 °.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420796355.1U CN204422012U (en) | 2014-12-15 | 2014-12-15 | Anticorrosion static-pressure type liquid level transmitter |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420796355.1U CN204422012U (en) | 2014-12-15 | 2014-12-15 | Anticorrosion static-pressure type liquid level transmitter |
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| CN204422012U true CN204422012U (en) | 2015-06-24 |
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| CN201420796355.1U Active CN204422012U (en) | 2014-12-15 | 2014-12-15 | Anticorrosion static-pressure type liquid level transmitter |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105352563A (en) * | 2015-12-10 | 2016-02-24 | 江南大学 | Anti-corrosion liquid level detection device and anti-corrosion liquid level detection method |
| CN108168764A (en) * | 2017-12-18 | 2018-06-15 | 青岛海尔智能技术研发有限公司 | A kind of hydraulic measurement device and water heater |
| CN113945252A (en) * | 2021-10-18 | 2022-01-18 | 上海柯珑清洁技术有限公司 | Far-end gas-collecting type liquid level detection device and method for detecting liquid level and liquid quality in tank |
-
2014
- 2014-12-15 CN CN201420796355.1U patent/CN204422012U/en active Active
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105352563A (en) * | 2015-12-10 | 2016-02-24 | 江南大学 | Anti-corrosion liquid level detection device and anti-corrosion liquid level detection method |
| CN105352563B (en) * | 2015-12-10 | 2018-11-30 | 江南大学 | A kind of anticorrosion liquid level detection device |
| CN108168764A (en) * | 2017-12-18 | 2018-06-15 | 青岛海尔智能技术研发有限公司 | A kind of hydraulic measurement device and water heater |
| CN113945252A (en) * | 2021-10-18 | 2022-01-18 | 上海柯珑清洁技术有限公司 | Far-end gas-collecting type liquid level detection device and method for detecting liquid level and liquid quality in tank |
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