CN203729982U - Input type liquid level and temperature integrated transmitter for deep well measurement - Google Patents

Input type liquid level and temperature integrated transmitter for deep well measurement Download PDF

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Publication number
CN203729982U
CN203729982U CN201420074028.5U CN201420074028U CN203729982U CN 203729982 U CN203729982 U CN 203729982U CN 201420074028 U CN201420074028 U CN 201420074028U CN 203729982 U CN203729982 U CN 203729982U
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China
Prior art keywords
signal
temperature
circuit
sensing
pressure
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Expired - Fee Related
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CN201420074028.5U
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Chinese (zh)
Inventor
杨新春
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BEIJING COLLIHIGH SENSOR TECHNOLOGY Co Ltd
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BEIJING COLLIHIGH SENSOR TECHNOLOGY Co Ltd
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Priority to CN201420074028.5U priority Critical patent/CN203729982U/en
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Abstract

The utility model relates to an input type liquid level and temperature integrated transmitter for deep well measurement. The input type liquid level and temperature integrated transmitter comprises a pressure guiding structure part, a pressure sensitive element, a welding structure part, a circuit board with a temperature sensitive element and a signal transmission cable; a first rubber sealing ring sleeves the pressure sensitive element; the welding structure part is connected with the pressure sensitive element in a laser welding mode after being in abutting connection with the pressure sensitive element in a parallel mode; the signal transmission cable is connected with the circuit board; the rear end of the pressure guiding structure part is embedded into the pressure sensitive element; the front end of the welding structure part and the rear end of the pressure guiding structure part are connected into a whole through laser welding; the circuit board is arranged in a structure part housing; the front end of the structure part housing is connected with the rear end of the pressure guiding structure part in a laser welding mode after being in abutting connection with the rear end of the pressure guiding structure part in a parallel mode; the circuit board is used for processing pressure signals and temperature signals and transmitting the processed signals to the signal transmission cable. According to the input type liquid level and temperature integrated transmitter for the deep well measurement, the sealing ring and laser welding redundancy design is applied to joints of the parts and accordingly the requirements of the underground complex environment can be well met and the tensile strength, the abrasion resistance and the corrosion resistance are improved.

Description

A kind of throw-in type liquid level temperature one transmitter of measuring for deep-well
Technical field
The utility model relates to measurement mechanism technical field, particularly relates to a kind of throw-in type liquid level temperature one transmitter of measuring for deep-well of engineerings such as being applied to coal bed gas well exploitation, field irrigation well, seismic monitoring well, geologic prospect deep-well, geothermal well, Groundwater Resources Management System, reservoir dam monitoring system, industrial pond equipment monitoring system and boats and ships oceanographic equipment monitoring system.
Background technology
Existing fluid level transmitter weak point is: due to by depth-logger generally between 600 to 1200 meters, liquid level static pressure is between 6 to 12MPa, to the structure of fluid level transmitter connect sealing, the anti-leakage of signal transmission cable pressure-bearing, wear-resistant and tensile strength has high requirement, the fluid level transmitter that generally signal transmission cable and single sealing ring add screw thread or single laser weld cannot meet the above-mentioned pressure requirement up to 12Mpa.
In order to address the above problem, meet measurement demand and the development trend of complying with industry market, the utility model had both been inherited the feature of traditional liquid level transmitter, increase again temperature measurement function, simultaneously original and different in structure design, a kind of novel throw-in type liquid level temperature one transmitter of measuring for deep-well has been proposed.
Summary of the invention
Technical problem to be solved in the utility model is to provide a kind of throw-in type liquid level temperature one transmitter of measuring for deep-well, the limitation problem existing for solving existing fluid level transmitter, and increase thermometric function simultaneously.
The technical scheme that the utility model solves the problems of the technologies described above is as follows: a kind of for throw-in type liquid level temperature one transmitter, comprise the signal transmission cable that impulse structural member, cover have the pressure-sensing device of the first rubber seal, are connected with the welding structural element being integrated by laser weld again after pressure-sensing device parallel docking, with the circuit board of temperature-sensing element (device) and with circuit board;
Described impulse structural member front end is threaded, and by the front end standard pressure generator that is threaded, rear end embeds described pressure-sensing device;
Described pressure-sensing device and temperature-sensing element (device), be respectively used to gather pressure signal and temperature signal, and be transferred to described circuit board;
Described welding structural element, its front end and described impulse structural member rear end link into an integrated entity by laser weld;
Described circuit board is placed in a structural member housing, and passes through laser weld after structural member housing front end and described impulse structural member rear end parallel docking; Described circuit board is connected with described pressure-sensing device, for pressure signal and temperature signal are amplified, temperature-compensating, range standardization adjustment and anti-interference process, and signal after treatment is transferred to transmission signal cable;
Described signal transmission cable is connected with described circuit board, for providing working power by circuit board to each parts of liquid level temperature integrated transmitter, also for exporting the signal through described circuit board processing.
On the basis of technique scheme, the utility model can also do following improvement.
Further, described circuit board comprises power supply and signal interface circuit, power supply processing circuit, sensing element driving voltage generation circuit and signal processing circuit;
Described power supply and signal interface circuit, it connects transmission signal cable and power supply processing circuit, for obtaining operating voltage by transmission signal cable, and is transferred to power supply processing circuit and processes;
Described power supply processing circuit, it is all connected with the each circuit on described circuit board, for the operating voltage of described power supply and signal interface circuit transmission is adjusted into the required voltage of each circuit working, and to each circuit transmission;
Described sensing element driving voltage produces circuit, and it is connected with temperature-sensing element (device) with pressure-sensing device, for providing work required driving voltage to pressure-sensing device and temperature-sensing element (device);
Described signal processing circuit; its Bonding pressure sensing element, temperature-sensing element (device) and transmission signal cable; for pressure signal and temperature signal are amplified successively, temperature-compensating, range standardization adjust and anti-interference conservation treatment, and export by transmission signal cable by power supply and signal interface circuit and signal after treatment.
Further, described signal processing circuit comprises the first amplification and temperature-compensation circuit, first signal Circuit tuning, the first anti-interference and holding circuit, the second amplification and temperature-compensation circuit, secondary signal Circuit tuning and the second anti-interference and holding circuit;
Described pressure-sensing device, the first amplification and temperature-compensation circuit, first signal Circuit tuning, the first anti-interference and holding circuit are connected successively with power supply and signal interface circuit, for realizing the pressure signal of process amplification successively, temperature-compensating, range standardization adjustment and anti-interference conservation treatment, be transferred to transmission signal cable by power supply and signal interface circuit;
Described temperature-sensing element (device), the second amplification and temperature-compensation circuit, secondary signal Circuit tuning, the second anti-interference and holding circuit are connected successively with power supply and signal interface circuit; for realizing the temperature signal of process amplification successively, temperature-compensating, range standardization adjustment and anti-interference conservation treatment, be transferred to transmission signal cable by power supply and signal interface circuit.
Further, the welding structural element linking into an integrated entity and impulse structural member fix by trip bolt and circuit board.
Further, described welding structural element rear end is provided with a groove, and this groove inner sleeve has the 3rd rubber seal.
Further, on described signal transmission cable with steel wire protection cover, and signal transmission cable passes steel wire sheath extrusion structure part and the first metallic gasket successively together with its steel wire protection cover, described steel wire sheath extrusion structure part is used for pushing the first metallic gasket and pins steel wire protection cover, described the first metallic gasket is for separating of steel wire protection cover, and steel wire and the first metallic gasket front end formation an angle of 90 degrees that steel wire protection cover is protected;
Remove the unnecessary steel wire through the signal transmission cable after steel wire sheath extrusion structure part and the first metallic gasket; described signal transmission cable is more successively through the second metallic gasket and cable extrusion structure part; and crimping is integrated; the steel wire that described the second metallic gasket overlaps for pinning the steel wire protection of the one-tenth an angle of 90 degrees between the first metallic gasket and the second metallic gasket, described cable extrusion structure part is used for sealing signal transmission cable.
Further, connect successively the first flexible gaskets, the 3rd metallic gasket, the second flexible gaskets and seal structural part through the signal transmission cable of cable extrusion structure part, after described seal structural part and described structural member housing rear end parallel docking, pass through laser weld.
Further, the front end groove inner sleeve of described seal structural part has the second rubber seal.
Further, described impulse structural member front end is provided with a protective cap.
Further, described pressure-sensing device adopts diffuser or ceramic capacitive pressure sensors, and described temperature-sensing element (device) adopts platinum resistance temperature sensor.
The beneficial effects of the utility model are: the shell in the utility model all adopts stainless steel material, and steel wire protection private cable is selected in signal transmission, improves tensile strength, abrasion resistance and resistance to corrosion.Simultaneously, the utility model is original and different in structure design, each parts connecting place all adopts sealing ring to add the Redundancy Design of laser weld, overcome unitary elasticity seal fails and trachoma or crack appear in single laser weld, under extra-high voltage, seepage causes circuit board water inlet to cause whole fluid level transmitter to damage, and meets better down-hole complex environment requirement by many places Redundancy Design.
Brief description of the drawings
Fig. 1 is the structural representation of throw-in type liquid level temperature one transmitter described in the utility model;
Fig. 2 is the assembling schematic diagram of throw-in type liquid level temperature one transmitter described in the utility model;
Fig. 3 is the operating principle schematic diagram of throw-in type liquid level temperature one transmitter described in the utility model.
In accompanying drawing, the list of parts of each label representative is as follows:
1, impulse structural member; 2, the first rubber seal; 3, pressure-sensing device, 4, welding structural element, 5, circuit board; 6, signal transmission cable; 7, structural member housing, 8, trip bolt, 9, steel wire sheath extrusion structure part; 10, the first metallic gasket; 11, the second metallic gasket, 12, cable extrusion structure part, 13, the first flexible gaskets; 14, the 3rd metallic gasket; 15, the second flexible gaskets, 16, seal structural part, 17, the second rubber seal; 18, the 3rd rubber seal, 19, protective cap.
Detailed description of the invention
Below in conjunction with accompanying drawing, principle of the present utility model and feature are described, example, only for explaining the utility model, is not intended to limit scope of the present utility model.
As shown in Figure 1, embodiment mono-has proposed a kind of throw-in type liquid level temperature one transmitter of measuring for deep-well, comprises the signal transmission cable 6 that impulse structural member 1, cover have the pressure-sensing device 3 of the first rubber seal 2, are connected with the welding structural element 4 being integrated by laser weld again after pressure-sensing device 3 parallel dockings, with the circuit board 5 of temperature-sensing element (device) and with circuit board 5;
Described impulse structural member 1 front end is threaded, and by the front end standard pressure generator that is threaded, rear end embeds described pressure-sensing device 3;
Described pressure-sensing device 3 and temperature-sensing element (device), be respectively used to gather pressure signal and temperature signal, and be transferred to described circuit board 5;
Described welding structural element 4, its front end and described impulse structural member 1 rear end link into an integrated entity by laser weld;
Described circuit board 5 is placed in a structural member housing 7, and passes through laser weld after structural member housing 7 front ends and the 1 rear end parallel docking of described impulse structural member; Described circuit board 5 is connected with described pressure-sensing device 3, for pressure signal and temperature signal are amplified, temperature-compensating, range standardization adjustment and anti-interference process, and signal after treatment is transferred to transmission signal cable 6;
Described signal transmission cable 6 is connected with described circuit board 5, for providing working power by circuit board 5 to each parts of liquid level temperature integrated transmitter, also for exporting the signal of processing through described circuit board 5.
The present embodiment has been realized the integrated measuring of liquid level and temperature, the operating principle of pressure portion is static pressure based on measured down-hole liquid and the proportional principle of height of this liquid, for its pressure-sensing device provides driving voltage, tested liquid height is converted to the signal of telecommunication; Temperature section obtains the signal of telecommunication of temperature signal by temperature-sensing element (device), through signal amplification, temperature-compensating, range standardization adjustment and anti-interference process etc., convert above-mentioned two paths of signals voltage or the current signal of on-the-spot required standard to.In conjunction with Fig. 1 and Fig. 2, lower mask body is introduced the assembling process of throw-in type liquid level temperature integrated transmitter.
In the present embodiment, on described pressure-sensing device 3, cover has the first rubber seal 2, then with the front end parallel docking of welding structural element 4 after by laser weld, welding structural element 4 links into an integrated entity by laser weld with impulse structural member 1 rear end again.Thereby make impulse structural member, pressure-sensing device, welding structural element form one by twice welding, reaching pressure-sensing device suspension installs, reduced as far as possible pressure-sensing device be subject to side and front end compressive zone to drift affect, and the double sealing Redundancy Design that rubber seal adds rear end laser weld has greatly improved anti-leakage water resistance.
The welding structural element 4 linking into an integrated entity and impulse structural member 1 tighten together with circuit board 5 by trip bolt 8, and the output line of pressure-sensing device 3 and temperature-sensing element (device) is connected with circuit board respective pins by soldering, then the front end of impulse structural member 1 is threaded io to standard pressure generator.
In addition; on described signal transmission cable 6 with steel wire protection cover; and signal transmission cable 6 passes steel wire sheath extrusion structure part 9 and the first metallic gasket 10 successively together with its steel wire protection cover; described steel wire sheath extrusion structure part 9 pins steel wire protection cover for pushing the first metallic gasket 10; described the first metallic gasket 10 is for separating of steel wire protection cover, and steel wire and the first metallic gasket 10 front ends formation an angle of 90 degrees that steel wire protection cover is protected.Remove the unnecessary steel wire through the signal transmission cable 6 after steel wire sheath extrusion structure part 9 and the first metallic gasket 10; described signal transmission cable 6 is more successively through the second metallic gasket 11 and cable extrusion structure part 12; and crimping is integrated; the steel wire that described the second metallic gasket 11 overlaps for pinning the steel wire protection of the one-tenth an angle of 90 degrees between the first metallic gasket 10 and the second metallic gasket 11, described cable extrusion structure part 12 is for sealing signal transmission cable.The implementation procedure that this part is concrete is: signal transmission cable is through after steel wire sheath extrusion structure part 9, the first metallic gasket 10 separated transmission signal cables and steel wire protection cover, the signal transmission cable of reserved certain length, cut off and make steel wire in order after unnecessary steel wire protection cover and make it become an angle of 90 degrees with the first metallic gasket, penetrate again the second metallic gasket 11, adjustment is clipped in the steel wire in the middle of two metallic gaskets, cut off unnecessary steel wire with scissors, then signal transmission cable is together passed to cable extrusion structure part 12 together with the steel wire protection cover of two metallic gasket therebetween, the rotation of steel wire jacket structure part is tightened, complete the crimping of signal transmission cable and steel wire protection cover.
Signal transmission cable and steel wire protection casing pressure are connected into after one; on the reserved cable of cable extrusion structure part front end, penetrate successively in order the first flexible gaskets 13, the 3rd metallic gasket 14, the second flexible gaskets 15; and then penetrate in seal structural part 16 rotation and tighten, complete the crimping of signal transmission cable waterproof sealing.Conical design in seal structural part chamber and add the design of metallic gasket in the middle of two flexible gaskets, guarantees that the distortion of flexible gaskets is consistent and reach best two pass waterproof sealing effect, has greatly improved anti-leakage water resistance.
After completing, the crimping of said transmission signal cable waterproof sealing carries out housing welding, concrete grammar is: first cable reserved seal structural part 16 is removed to steel wire protection cover, expose electric wire, and reserved certain length, remove electric wire outermost insulating protective layer by scolding tin in metal conductive wire at front end, treat that next step is connected with circuit board; The second rubber seal 17 is inserted in numbering seal structural part 16 front end grooves, then carry out laser weld and make itself and the parallel docking of structural member housing, after completing, in seal structural part bucket, taking-up is reserved, the metal conductive wire of soldering, is connected it with the circuit board in structural member housing; In the groove of welding structural element rear end, be inserted in the 3rd rubber seal 18, then put interlock circuit on circuit board in order, impulse structural member 1 and 7 parallel dockings of structural member housing are inserted into the end of to and carry out laser weld; Complete above-mentioned process product and carry out electrified ageing, be then up to the standards and dispatch from the factory.Increase groove on the top of welding structural element and seal structural part and be bumped into rubber seal therein, then carrying out laser weld, two pass waterproofing design has improved this product waterproof property greatly.
In the present embodiment, described pressure-sensing device adopts diffuser or ceramic capacitive pressure sensors, and described temperature-sensing element (device) adopts RTD (Pt100) temperature pick up of standard, and described impulse structural member front end is provided with a protective cap 19.
In addition, as shown in Figure 3, described circuit board 5 comprises power supply and signal interface circuit, power supply processing circuit, sensing element driving voltage generation circuit and signal processing circuit;
Described power supply and signal interface circuit, it connects transmission signal cable and power supply processing circuit, for obtaining operating voltage by transmission signal cable, and is transferred to power supply processing circuit and processes;
Described power supply processing circuit, it is all connected with the each circuit on described circuit board, for the operating voltage of described power supply and signal interface circuit transmission is adjusted into the required voltage of each circuit working, and to each circuit transmission;
Described sensing element driving voltage produces circuit, and it is connected with temperature-sensing element (device) with pressure-sensing device, for providing work required driving voltage to pressure-sensing device and temperature-sensing element (device);
Described signal processing circuit; its Bonding pressure sensing element, temperature-sensing element (device) and transmission signal cable; for pressure signal and temperature signal are amplified successively, temperature-compensating, range standardization adjust and anti-interference conservation treatment, and export by transmission signal cable by power supply and signal interface circuit and signal after treatment.
As shown in Figure 3, described signal processing circuit comprises the first amplification and temperature-compensation circuit, first signal Circuit tuning, the first anti-interference and holding circuit, the second amplification and temperature-compensation circuit, secondary signal Circuit tuning and the second anti-interference and holding circuit;
Described pressure-sensing device, the first amplification and temperature-compensation circuit, first signal Circuit tuning, the first anti-interference and holding circuit are connected successively with power supply and signal interface circuit, for realizing the pressure signal of process amplification successively, temperature-compensating, range standardization adjustment and anti-interference conservation treatment, be transferred to transmission signal cable by power supply and signal interface circuit;
Described temperature-sensing element (device), the second amplification and temperature-compensation circuit, secondary signal Circuit tuning, the second anti-interference and holding circuit are connected successively with power supply and signal interface circuit; for realizing the temperature signal of process amplification successively, temperature-compensating, range standardization adjustment and anti-interference conservation treatment, be transferred to transmission signal cable by power supply and signal interface circuit.
For above-mentioned each circuit, the function that has been is mainly divided into three parts:
One, power unit workflow: signal-transmitting cable access power supply and signal interface circuit, power supply and signal interface circuit connect power supply regulator circuit again, produce the required voltage of each interlock circuit by power supply regulator circuit, for whole transmitter provides required working power.
Two, liquid level some work flow process: sensing element driving voltage produces circuit and provides driving voltage for pressure-sensing device; pressure-sensing device converts the pressure of experiencing to the signal of telecommunication; after amplification and temperature-compensating, send the adjustment of line output signal to; meet the corresponding measured journey of output signal; then carry out anti-interference and pressure limiting, current-limiting protection, then by signal-transmitting cable outputting standard signal.
Three, temperature section workflow: the temperature signal that temperature-sensing element (device) is experienced; through amplifying and the laggard line output signal adjustment of temperature-compensating; the corresponding measured journey of satisfied temperature output signal; then carry out anti-interference and pressure limiting, current-limiting protection, by by signal-transmitting cable outputting standard signal.
The foregoing is only preferred embodiment of the present utility model, not in order to limit the utility model, all within spirit of the present utility model and principle, any amendment of doing, be equal to replacement, improvement etc., within all should being included in protection domain of the present utility model.

Claims (10)

1. a throw-in type liquid level temperature one transmitter of measuring for deep-well, it is characterized in that, comprise the signal transmission cable that impulse structural member, cover have the pressure-sensing device of the first rubber seal, are connected with the welding structural element being integrated by laser weld again after pressure-sensing device parallel docking, with the circuit board of temperature-sensing element (device) and with circuit board;
Described impulse structural member front end is threaded, and by the front end standard pressure generator that is threaded, rear end embeds described pressure-sensing device;
Described welding structural element, its front end and described impulse structural member rear end link into an integrated entity by laser weld;
Described circuit board is placed in a structural member housing, and passes through laser weld after structural member housing front end and described impulse structural member rear end parallel docking; Described circuit board is all connected with described pressure-sensing device and described transmission signal cable.
2. throw-in type liquid level temperature one transmitter according to claim 1, is characterized in that, described circuit board comprises power supply and signal interface circuit, power supply processing circuit, sensing element driving voltage generation circuit and signal processing circuit;
Described power supply and signal interface circuit, it connects transmission signal cable and power supply processing circuit, for obtaining operating voltage by transmission signal cable, and is transferred to power supply processing circuit and processes;
Described power supply processing circuit, it is all connected with the each circuit on described circuit board, for the operating voltage of described power supply and signal interface circuit transmission is adjusted into the required voltage of each circuit working, and to each circuit transmission;
Described sensing element driving voltage produces circuit, and it is connected with temperature-sensing element (device) with pressure-sensing device, for providing work required driving voltage to pressure-sensing device and temperature-sensing element (device);
Described signal processing circuit; its Bonding pressure sensing element, temperature-sensing element (device) and transmission signal cable; for pressure signal and temperature signal are amplified successively, temperature-compensating, range standardization adjust and anti-interference conservation treatment, and export by transmission signal cable by power supply and signal interface circuit and signal after treatment.
3. throw-in type liquid level temperature one transmitter claimed in claim 2, it is characterized in that, described signal processing circuit comprises the first amplification and temperature-compensation circuit, first signal Circuit tuning, the first anti-interference and holding circuit, the second amplification and temperature-compensation circuit, secondary signal Circuit tuning and the second anti-interference and holding circuit;
Described pressure-sensing device, the first amplification and temperature-compensation circuit, first signal Circuit tuning, the first anti-interference and holding circuit are connected successively with power supply and signal interface circuit, for realizing the pressure signal of process amplification successively, temperature-compensating, range standardization adjustment and anti-interference conservation treatment, be transferred to transmission signal cable by power supply and signal interface circuit;
Described temperature-sensing element (device), the second amplification and temperature-compensation circuit, secondary signal Circuit tuning, the second anti-interference and holding circuit are connected successively with power supply and signal interface circuit; for realizing the temperature signal of process amplification successively, temperature-compensating, range standardization adjustment and anti-interference conservation treatment, be transferred to transmission signal cable by power supply and signal interface circuit.
4. throw-in type liquid level temperature one transmitter according to claim 1, is characterized in that, the welding structural element linking into an integrated entity and impulse structural member fix by trip bolt and circuit board.
5. throw-in type liquid level temperature one transmitter according to claim 1, is characterized in that, described welding structural element rear end is provided with a groove, and this groove inner sleeve has the 3rd rubber seal.
6. throw-in type liquid level temperature one transmitter according to claim 1, it is characterized in that, on described signal transmission cable with steel wire protection cover, and signal transmission cable passes steel wire sheath extrusion structure part and the first metallic gasket successively together with its steel wire protection cover, described steel wire sheath extrusion structure part is used for pushing the first metallic gasket and pins steel wire protection cover, described the first metallic gasket is for separating of steel wire protection cover, and steel wire and the first metallic gasket front end formation an angle of 90 degrees that steel wire protection cover is protected;
Remove the unnecessary steel wire through the signal transmission cable after steel wire sheath extrusion structure part and the first metallic gasket, described signal transmission cable is more successively through the second metallic gasket and cable extrusion structure part, and crimping is integrated; The steel wire that described the second metallic gasket overlaps for pinning the steel wire protection of the one-tenth an angle of 90 degrees between the first metallic gasket and the second metallic gasket, described cable extrusion structure part is used for sealing signal transmission cable.
7. throw-in type liquid level temperature one transmitter according to claim 6, it is characterized in that, signal transmission cable through cable extrusion structure part connects the first flexible gaskets, the 3rd metallic gasket, the second flexible gaskets and seal structural part successively, after described seal structural part and described structural member housing rear end parallel docking, passes through laser weld.
8. throw-in type liquid level temperature one transmitter according to claim 7, is characterized in that, the front end groove inner sleeve of described seal structural part has the second rubber seal.
9. according to arbitrary described throw-in type liquid level temperature one transmitter in claim 1 to 8, it is characterized in that, described impulse structural member front end is provided with a protective cap.
10. according to arbitrary described throw-in type liquid level temperature one transmitter in claim 1 to 8, it is characterized in that, described pressure-sensing device adopts diffuser or ceramic capacitive pressure sensors, and described temperature-sensing element (device) adopts platinum resistance temperature sensor.
CN201420074028.5U 2014-02-20 2014-02-20 Input type liquid level and temperature integrated transmitter for deep well measurement Expired - Fee Related CN203729982U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201420074028.5U CN203729982U (en) 2014-02-20 2014-02-20 Input type liquid level and temperature integrated transmitter for deep well measurement

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Application Number Priority Date Filing Date Title
CN201420074028.5U CN203729982U (en) 2014-02-20 2014-02-20 Input type liquid level and temperature integrated transmitter for deep well measurement

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Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104329077A (en) * 2014-11-12 2015-02-04 中国石油天然气股份有限公司 Anti-disturbance liquid level monitor for water source well
CN104481512A (en) * 2014-10-23 2015-04-01 西安思坦仪器股份有限公司 Water source well carrier liquid level detection system
CN105089637A (en) * 2014-05-14 2015-11-25 中国石油天然气股份有限公司 Downhole carrier liquid-level monitor for water source well and method
CN109855700A (en) * 2019-01-31 2019-06-07 麦克传感器股份有限公司西安分公司 A kind of throw-in type liquid transmitter

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105089637A (en) * 2014-05-14 2015-11-25 中国石油天然气股份有限公司 Downhole carrier liquid-level monitor for water source well and method
CN104481512A (en) * 2014-10-23 2015-04-01 西安思坦仪器股份有限公司 Water source well carrier liquid level detection system
CN104329077A (en) * 2014-11-12 2015-02-04 中国石油天然气股份有限公司 Anti-disturbance liquid level monitor for water source well
CN109855700A (en) * 2019-01-31 2019-06-07 麦克传感器股份有限公司西安分公司 A kind of throw-in type liquid transmitter

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Granted publication date: 20140723

Termination date: 20180220