CN212254252U

CN212254252U - Transmitter for geothermal high-temperature water level

Info

Publication number: CN212254252U
Application number: CN202021535460.1U
Authority: CN
Inventors: 吴强
Original assignee: Zhengzhou Waltai Instruments Co ltd
Current assignee: Zhengzhou Waltai Instruments Co ltd
Priority date: 2020-07-29
Filing date: 2020-07-29
Publication date: 2020-12-29
Anticipated expiration: 2030-07-29

Abstract

The utility model relates to the technical field of sensors, in particular to a geothermal high-temperature water level transmitter, which comprises a liquid level controller and a liquid level detection probe; the liquid level detection probe comprises a probe tube body, a flow guide end head at the lower end of the probe tube body and a sealing end cover at the top end of the probe tube body; a wire passing hole is formed in the axis of the sealing end cover, a measuring guide rod is vertically arranged at the lower end of the sealing end cover, an induction floating ball is sleeved on the measuring guide rod, and the measuring guide rod is electrically connected with the high-temperature-resistant cable; the probe tube body is internally provided with a cavity for mounting the measuring guide rod and the induction floating ball, and the inner wall of the probe tube body is attached with a heat insulation lining. The utility model has reasonable and novel design and compact structure, can transmit the liquid level data in the detection well to the well for digital display in real time, and meets the production requirements of enterprises; the high-temperature-resistant and corrosion-resistant sealing material has excellent sealing, waterproof, high-temperature-resistant and corrosion-resistant properties, has wide application, and is particularly suitable for monitoring the geothermal high-temperature water level.

Description

Transmitter for geothermal high-temperature water level

Technical Field

The utility model relates to a sensor technical field, concretely relates to be used for geothermol power high temperature water level changer.

Background

The liquid level transmitter is mainly used for accurately measuring the liquid level of liquid, is an extension and development of the pressure transmitter technology, and realizes accurate measurement and transmission of the volume, liquid height and weight of water, oil and paste according to the principle that the pressure generated by the liquid with different specific gravity at different heights is in a linear relation. With the rapid development of modern residential areas in China and the increasingly improvement of urban and rural basic facilities, particularly hot water facilities, a liquid level testing device which is low in cost and can stably work for a long time in a hot water environment with high temperature and weak pH value is urgently needed in the sensor market. At present, the pressure testing equipment capable of working stably for a long time under the environment is mainly completed by imported equipment or equipment assembled outside the imported country, and the equipment has the disadvantages of complex structure, high price and troublesome maintenance; the domestic existing liquid level detector is mainly of a structure integrally packaged by a sensing component and a signal modulation component, the main problem existing in use is that the overall working stability of the detector is poor, and when a liquid medium has the characteristics of corrosivity and high temperature, the service life of a liquid level transmitter is short.

SUMMERY OF THE UTILITY MODEL

In order to solve the problem, the utility model provides a be used for geothermol power high temperature water level changer, the utility model discloses a realize through following technical scheme:

a water level transmitter for geothermal high temperature comprises a liquid level controller and a liquid level detection probe which is electrically connected with the liquid level controller through a high temperature resistant cable and is immersed in a well body;

the liquid level detection probe comprises a probe tube body, a flow guide end head in threaded connection with the lower end of the probe tube body and a sealing end cover in threaded connection with the top end of the probe tube body;

the device comprises a sealing end cover, a sensing floating ball, a high-temperature-resistant cable, a wire passing hole, a measuring guide rod and a wire guiding sleeve, wherein the sealing end cover is provided with the wire passing hole on the axis;

the probe tube body is internally provided with a cavity for mounting the measuring guide rod and the induction floating ball, and the inner wall of the probe tube body is attached with a heat insulation lining.

Further, the sealing end cover comprises a cover body and a threaded end A fixedly arranged in the center of the lower end of the cover body; and the upper end of the probe tube body is provided with a threaded through hole corresponding to the threaded end A.

Furthermore, a plurality of positioning screw holes are formed in the sealing end cover along the circumferential direction of the axis, and fixing screws are arranged corresponding to the positioning screw holes.

Further, a first sealing washer is arranged between the sealing end cover and the probe tube body.

Further, the flow guiding end comprises a drainage conical head and a threaded end B arranged at the top end of the drainage conical head; the lower end of the probe tube body is provided with a threaded through hole corresponding to the threaded end B; and a first drainage channel is arranged on the axis of the flow guide end head.

Furthermore, the drainage conical head is provided with a plurality of second drainage channels communicated with the first drainage channels along the circumference.

Furthermore, a second sealing washer is arranged between the flow guide end head and the probe tube body.

Further, the high-temperature-resistant cable comprises a stranded core and an insulating sealing layer wrapped outside the stranded core, a rubber protective layer is wrapped outside the insulating sealing layer, and a tensile protective net is arranged between the rubber protective layer and the insulating sealing layer.

Furthermore, the tensile protection net is formed by weaving a plurality of thin steel belts or aluminum foils or glass fibers, and the inner area of the rubber protection layer covered by the tensile protection net is not less than 75%.

Further, the rubber protective layer is prepared from butyl rubber with excellent high-temperature resistance; the insulating sealing layer is made of EPDM rubber material with excellent filling performance and high temperature resistance.

The utility model discloses beneficial effect does:

the utility model has reasonable and novel design and compact structure, can transmit the liquid level data in the detection well to the well for digital display in real time, and meets the production requirements of enterprises; the utility model discloses have good sealed, waterproof, high temperature resistant and corrosion resisting property, have extensive usage, be particularly useful for the monitoring of geothermol power high temperature water level.

Drawings

FIG. 1 is a schematic view of the structure of the water level transmitter of the present invention;

FIG. 2 is a schematic structural view of an embodiment of a liquid level detection probe;

FIG. 3 is an enlarged view of the structure at A in FIG. 2;

FIG. 4 is a schematic cross-sectional view of a high temperature resistant cable;

FIG. 5 is a schematic structural view of an embodiment of a seal end cap;

FIG. 6 is a schematic view of a first perspective structure of a fluid-guiding tip;

fig. 7 is a schematic view of a second perspective structure of the flow-guiding tip.

In the figure:

100. a water level transmitter; 110. a liquid level controller; 120. a high temperature resistant cable; 121. a rubber protective layer; 122. a tensile protective net; 123. an insulating sealing layer; 124. twisting a core; 130. a liquid level detection probe; 131. sealing the end cap; 1311. a cover body; 1312. a threaded end A; 1313. a wire passing hole; 1314. positioning the screw hole; 132. a first sealing gasket; 133. a probe tube body; 134. a thermally insulating liner; 135. a measuring guide rod; 136. sensing the floating ball; 137. a stopper; 138. a second sealing gasket; 139. a flow guiding end; 1391. a threaded end B; 1392. a drainage cone head; 1393. a first drainage channel; 1394. a second drainage channel; 1310. a cavity;

200. a well body.

Detailed Description

Preferred embodiments of the present invention will be described below with reference to the accompanying drawings. It should be understood by those skilled in the art that these embodiments are only for explaining the technical principle of the present invention, and are not intended to limit the scope of the present invention.

Referring to fig. 1 to 7, an embodiment of the present invention discloses a geothermal high temperature water level transmitter, wherein the water level transmitter 100 includes a liquid level controller 110 and a liquid level detection probe 130 electrically connected to the liquid level controller 110 via a high temperature resistant cable 120 and immersed in a well 200; a main control module is arranged in the liquid level controller 110, and the main control module can adopt a single chip microcomputer to control the liquid level detection probe 130; the display module is used for displaying the measured water level data of the liquid medium in real time; the power supply module is an external power supply voltage and can be 220V or 360V.

The liquid level detection probe 130 comprises a probe body 133, a flow guide end 139 connected with the lower end of the probe body 133 through threads, and a sealing end cover 131 connected with the top end of the probe body 133 through threads;

a wire passing hole 1313 is formed in the axis of the sealing end cover 131, a measuring guide rod 135 is arranged below the sealing end cover 131, corresponds to the wire passing hole 1313 and is perpendicular to the sealing end cover 131, an induction floating ball 136 is sleeved on the measuring guide rod 135, and the measuring guide rod 135 is electrically connected with the high-temperature-resistant cable 120; the liquid pressure change of the well body 200 can be sensed through the cooperation of the sensing floating ball 136 and the measuring guide rod 135, and the liquid level data is transmitted to the liquid level controller 110 and is displayed in a digital mode in real time.

A cavity 1310 for installing the measuring guide rod 135 and the sensing floating ball 136 is arranged in the probe tube 133, a heat insulation lining 134 is attached to the inner wall of the probe tube 133, and the heat insulation lining 134 can be made of EPDM rubber material with excellent filling performance and high temperature resistance, so that heat outside the probe tube 133 is isolated.

Referring to fig. 3 and 5, the end cap 131 includes a cap 1311 and a screw head a1312 fixedly disposed at the center of the lower end of the cap 1311; the upper end of the probe tube body 133 is provided with a threaded through hole corresponding to the threaded end A1312; a first sealing washer 132 is arranged between the sealing end cover 131 and the probe body 133; a plurality of positioning screw holes 1314 are formed in the sealing end cover 131 along the circumferential direction of the axis, and fixing screws are arranged corresponding to the positioning screw holes 1314; and a multi-stage sealing connection mode is adopted, so that the sealing performance of the sealing end cover 131 and the probe tube body 133 is greatly improved.

Referring to fig. 6 and 7, the diversion tip 139 comprises a diversion cone 1392 and a threaded tip B1391 arranged at the top of the diversion cone 1392; the lower end of the probe tube body 133 is provided with a threaded through hole corresponding to the threaded end B1391; a second sealing washer 138 is arranged between the flow guide end 139 and the probe tube body 133; a first drainage channel 1393 is arranged on the axis of the flow guide end 139; the drainage cone head 1392 is provided with a plurality of second drainage channels 1394 communicated with the first drainage channels 1393 along the circumference; geothermal high temperature liquid can be introduced into the probe body 133 through the flow guiding end 139, and the pressure change of the liquid is sensed by the sensing floating ball 136 and converted into an electric signal which is transmitted to the liquid level controller 110 through the high temperature resistant cable 120.

Referring to fig. 2, 3 and 4, the high-temperature-resistant cable 120 includes a strand core 124 and an insulating sealing layer 123 wrapped outside the strand core 124, a rubber protection layer 121 is wrapped outside the insulating sealing layer 123, and a tensile protection net 122 is arranged between the rubber protection layer 121 and the insulating sealing layer 123; the tensile protection net 122 is woven by a plurality of thin steel strips or aluminum foils or glass fibers, the area of the tensile protection net 122 covering the rubber protection layer 121 is not less than 75%, and the tensile protection net 122 greatly improves the tensile property of the high-temperature-resistant cable 120; the insulating sealing layer 123 is made of EPDM rubber material, and the material not only has good filling performance, but also has excellent insulating and high temperature resistance performance, and can effectively protect the stranded core 124 in the insulating sealing layer; the rubber protective layer 121 is made of butyl rubber, has strong high temperature resistance, and the high temperature resistance range can be increased to 150 ℃.

It should be noted that in the description of the present invention, the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. indicating the directions or positional relationships are based on the directions or positional relationships shown in the drawings, which are only for convenience of description, and do not indicate or imply that the device or element must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

Furthermore, it should be noted that, in the description of the present invention, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood by those skilled in the art according to specific situations.

The terms "comprises," "comprising," or any other similar term are intended to cover a non-exclusive inclusion, such that a process, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, article, or apparatus.

So far, the technical solution of the present invention has been described with reference to the preferred embodiments shown in the drawings, but it is easily understood by those skilled in the art that the scope of the present invention is obviously not limited to these specific embodiments. Without departing from the principle of the present invention, a person skilled in the art can make equivalent changes or substitutions to the related technical features, and the technical solutions after these changes or substitutions will fall within the protection scope of the present invention.

Claims

1. A transmitter for geothermal high temperature water level, the transmitter (100) comprising a level controller (110) and a level detection probe (130) electrically coupled to the level controller (110) by a high temperature resistant cable (120) and submerged in a well (200);

the liquid level detection probe (130) comprises a probe tube body (133), a flow guide end head (139) in threaded connection with the lower end of the probe tube body (133), and a sealing end cover (131) in threaded connection with the top end of the probe tube body (133);

the axial line of the sealing end cover (131) is provided with a wire passing hole (1313), a measuring guide rod (135) is arranged below the sealing end cover (131) and corresponds to the wire passing hole (1313) and is perpendicular to the sealing end cover (131), the measuring guide rod (135) is sleeved with an induction floating ball (136), and the measuring guide rod (135) is electrically connected with the high-temperature-resistant cable (120);

a cavity (1310) for installing the measuring guide rod (135) and the induction floating ball (136) is arranged in the probe tube body (133), and a heat insulation lining (134) is attached to the inner wall of the probe tube body (133).

2. The geothermal high-temperature water level transmitter of claim 1, wherein the end cover (131) comprises a cover body (1311) and a threaded head a (1312) fixedly arranged at the center of the lower end of the cover body (1311); the upper end of the probe pipe body (133) is provided with a threaded through hole corresponding to the threaded end A (1312).

3. The geothermal high-temperature water level transmitter according to claim 2, wherein the end cap (131) is provided with a plurality of positioning screw holes (1314) along the circumferential direction of the axis, and fixing screws are arranged corresponding to the positioning screw holes (1314).

4. A geothermal high temperature water level transmitter according to claim 3 wherein a first sealing washer (132) is provided between the end cap (131) and the probe body (133).

5. The geothermal water level transmitter according to any one of claims 1-4, wherein the flow guiding head (139) comprises a flow guiding cone head (1392) and a threaded head B (1391) arranged at the top end of the flow guiding cone head (1392); the lower end of the probe tube body (133) is provided with a threaded through hole corresponding to the threaded end B (1391); a first drainage channel (1393) is arranged on the axis of the flow guide end head (139).

6. The transmitter of claim 5, wherein the tapping cone head (1392) is provided with a plurality of second tapping channels (1394) along the circumference, which are communicated with the first tapping channels (1393).

7. A geothermal water level transmitter according to claim 6 wherein a second sealing washer (138) is arranged between the flow guiding tip (139) and the probe body (133).

8. The geothermal high-temperature water level transmitter according to claim 7, wherein the high-temperature resistant cable (120) comprises a stranded core (124) and an insulating sealing layer (123) wrapped outside the stranded core (124), a rubber protection layer (121) is wrapped outside the insulating sealing layer (123), and a tensile protection net (122) is arranged between the rubber protection layer (121) and the insulating sealing layer (123).

9. The geothermal high-temperature water level transmitter according to claim 8, wherein the tensile protection net (122) is woven by a plurality of thin steel belts or aluminum foils or glass fibers, and the inner area of the rubber protection layer (121) covered by the tensile protection net (122) is not less than 75%.

10. The geothermal high-temperature water level transmitter according to claim 9, wherein the rubber protective layer (121) is made of butyl rubber with excellent high-temperature resistance; the insulating sealing layer (123) is made of EPDM rubber material with excellent filling performance and high-temperature resistance.