CN212622355U - Membrane system conductivity sensing device - Google Patents
Membrane system conductivity sensing device Download PDFInfo
- Publication number
- CN212622355U CN212622355U CN202021275609.7U CN202021275609U CN212622355U CN 212622355 U CN212622355 U CN 212622355U CN 202021275609 U CN202021275609 U CN 202021275609U CN 212622355 U CN212622355 U CN 212622355U
- Authority
- CN
- China
- Prior art keywords
- module
- membrane system
- signal
- sensing device
- electrically connected
- Prior art date
- 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.)
- Active
Links
- 239000012528 membrane Substances 0.000 title claims abstract description 60
- 238000012545 processing Methods 0.000 claims abstract description 51
- 239000000523 sample Substances 0.000 claims abstract description 28
- 238000004891 communication Methods 0.000 claims abstract description 23
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 16
- 238000004519 manufacturing process Methods 0.000 claims abstract description 6
- 238000002955 isolation Methods 0.000 claims description 10
- 239000004593 Epoxy Substances 0.000 claims description 5
- 238000004382 potting Methods 0.000 claims description 5
- BASFCYQUMIYNBI-UHFFFAOYSA-N platinum Chemical compound [Pt] BASFCYQUMIYNBI-UHFFFAOYSA-N 0.000 claims description 3
- 230000005611 electricity Effects 0.000 claims description 2
- 238000005259 measurement Methods 0.000 abstract description 9
- 230000007797 corrosion Effects 0.000 description 6
- 238000005260 corrosion Methods 0.000 description 6
- 238000013461 design Methods 0.000 description 4
- 229920000122 acrylonitrile butadiene styrene Polymers 0.000 description 3
- 239000000853 adhesive Substances 0.000 description 3
- 230000001070 adhesive effect Effects 0.000 description 3
- 230000005540 biological transmission Effects 0.000 description 3
- 238000012937 correction Methods 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 238000009434 installation Methods 0.000 description 3
- 239000000463 material Substances 0.000 description 3
- 238000012986 modification Methods 0.000 description 3
- 230000004048 modification Effects 0.000 description 3
- 230000010287 polarization Effects 0.000 description 3
- 230000003321 amplification Effects 0.000 description 2
- 238000013480 data collection Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 238000001914 filtration Methods 0.000 description 2
- 238000003199 nucleic acid amplification method Methods 0.000 description 2
- 238000010612 desalination reaction Methods 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 239000003651 drinking water Substances 0.000 description 1
- 235000020188 drinking water Nutrition 0.000 description 1
- 239000013535 sea water Substances 0.000 description 1
- 239000010865 sewage Substances 0.000 description 1
Images
Landscapes
- Investigating Or Analyzing Materials By The Use Of Electric Means (AREA)
Abstract
The utility model discloses a membrane system conductivity sensing device, which comprises a shell, a signal processing component and an electrode probe; the signal processing assembly is arranged in the shell and comprises a signal acquisition module, a data processing module, a main control module and a communication module, wherein the signal acquisition module is electrically connected with the electrode probe and is used for acquiring a water production conductance signal of a single-branch membrane column of the membrane system through the electrode probe; the data processing module is electrically connected with the signal acquisition module, is also electrically connected with the main control module, and is used for processing the acquired conductance signals; the communication module is electrically connected with the main control module, is connected with a signal output cable, leads the signal output cable to the outside of the shell, and is used for outputting the measurement data. The utility model discloses the product water conductance of single membrane post detects in the realization membrane system, guarantees the product water quality of membrane system.
Description
Technical Field
The utility model relates to a membrane system conductivity sensing device belongs to conductivity measurement technical field.
Background
At present, a membrane system is an essential component in technologies such as drinking water, sewage and seawater desalination, and the conductivity is an important index for measuring the quality of produced water treated by the membrane system. The conductivity is the inverse of the conductivity of water, i.e., the resistance of water, and is commonly used to indicate the purity of water. The larger the conductivity, the stronger the conductivity, and vice versa.
At present, most conductivity sensors are composed of conductivity electrodes and intelligent instruments, so that the cost is high, the conductivity sensors are not easy to install, and the occupied space is large; secondly, a connecting cable between the conductivity sensor and the instrument needs to be extended by a special shielding cable; repeated correction is needed when the device is used, and the operation is too complex; several conductivity sensor data-centric measurements are difficult to achieve. Because the membrane system contains a plurality of single membrane columns, a special water-producing conductance detection scheme for the single membrane column of the membrane system is lacked at present so as to find out the problematic membrane column in time.
SUMMERY OF THE UTILITY MODEL
The utility model discloses not enough to prior art exists provides a membrane system conductivity sensing device, realizes that the product water conductance of single membrane post detects in the membrane system, guarantees the product water quality of membrane system.
The utility model provides an above-mentioned technical problem's technical scheme as follows: a membrane system conductivity sensing device comprises a shell, a signal processing assembly and an electrode probe; the signal processing assembly is arranged in the shell and comprises a signal acquisition module, a data processing module, a main control module and a communication module, wherein the signal acquisition module is electrically connected with the electrode probe and is used for acquiring a water production conductance signal of a single-branch membrane column of the membrane system through the electrode probe; the data processing module is electrically connected with the signal acquisition module, is also electrically connected with the main control module, and is used for processing the acquired conductance signals; the communication module is electrically connected with the main control module, is connected with a signal output cable, leads the signal output cable to the outside of the shell, and is used for outputting the measurement data.
As a preferable scheme of the membrane system conductivity sensing device, the signal processing module further comprises a power isolation module and a power module, the data processing module is electrically connected with the power module through the power isolation module, and the master control module is electrically connected with the power module.
As a preferable scheme of the membrane system conductivity sensing device, the power supply module adopts an MP2451 chip, and the power supply isolation module adopts a ZA0501SD-RU chip.
As a preferable scheme of the membrane system conductivity sensing device, the signal acquisition module adopts an AD23L101-PS chip; the data processing module adopts an RI70221DS chip; the main control module adopts a TS23F501-K chip; the communication module adopts an 71756 communication chip.
As a preferable scheme of the membrane system conductivity sensing device, an external thread is formed outside the electrode probe, and a hexagonal fastening part is arranged at the joint of the electrode probe and the shell.
As a preferable scheme of the membrane system conductivity sensing device, the electrode probe adopts 316L platinized black material.
As a preferable scheme of the membrane system conductivity sensing device, the electrode probe is provided with a temperature sensor, the temperature sensor is electrically connected with the signal acquisition module, and the temperature sensor is used for acquiring a temperature signal to perform temperature compensation.
As a preferable scheme of the membrane system conductivity sensing device, the display device is connected through an RS485 interface.
As a preferable scheme of the membrane system conductivity sensing device, the signal processing assembly is sealed inside the shell through epoxy potting adhesive.
The utility model adopts an integrated design, has small volume and simple installation; the shell is made of corrosion-resistant and heat-resistant ABS plastic, and is sealed by epoxy potting adhesive, so that the corrosion resistance and the waterproof grade are improved; data are collected in a centralized manner and are directly connected with display equipment through RS485, so that long-distance transmission of data is realized, and data collection can be performed on a plurality of conductivity sensors;
automatic temperature compensation is adopted, and the measurement precision is high; meanwhile, the electrode is made of special materials, so that the polarization effect is reduced;
the MCU singlechip with high performance, low cost and low power consumption is adopted, simultaneously, the hardware design is compatible with multiple ranges, signal amplification and rectification filtering are adopted for processing signals on the hardware, calculation and correction are carried out on a control flow according to acquired data, and the error of measured data is small;
the user investment is small, the operation is convenient, an external transmitter is not needed, the data can be checked through a PC (personal computer) terminal, and the operation is simple and convenient;
the technical scheme can be specially used for detecting the water production conductance of a single membrane column in a membrane system, and the problem membrane column can be checked in a short time.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below. It should be apparent that the drawings in the following description are merely exemplary, and that other embodiments can be derived from the drawings provided by those of ordinary skill in the art without inventive effort.
The structure, ratio, size and the like shown in the present specification are only used for matching with the content disclosed in the specification, so as to be known and read by people familiar with the technology, and are not used for limiting the limit conditions which can be implemented by the present invention, so that the present invention has no technical essential significance, and any structure modification, ratio relationship change or size adjustment should still fall within the scope which can be covered by the technical content disclosed by the present invention without affecting the efficacy and the achievable purpose of the present invention.
Fig. 1 is a schematic structural view of a membrane system conductivity sensing device provided in an embodiment of the present invention;
fig. 2 is a schematic diagram of a signal processing module in a conductivity sensing apparatus of a membrane system provided in an embodiment of the present invention;
fig. 3 is a circuit diagram of a signal processing module in the conductivity sensing apparatus of the membrane system provided in the embodiment of the present invention.
In the figure, 1, a housing; 2. a signal processing component; 3. an electrode probe; 4. a signal acquisition module; 5. a data processing module; 6. a main control module; 7. a communication module; 8. a power isolation module; 9. a power supply module; 10. a hexagonal fastening portion; 11. a signal output cable; 12. a temperature sensor.
Detailed Description
In order to make the above objects, features and advantages of the present invention more comprehensible, embodiments of the present invention are described in detail below with reference to the accompanying drawings. In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present invention. The present invention may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein, as those skilled in the art will be able to make similar modifications without departing from the spirit and scope of the present invention.
Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. The terminology used herein in the description of the invention is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. As used herein, the term "and/or" includes any and all combinations of one or more of the associated listed items.
Referring to fig. 1, 2 and 3, there is provided a membrane system conductivity sensing device comprising a housing 1, a signal processing assembly 2 and an electrode probe 3; the signal processing assembly 2 is arranged in the shell 1, the signal processing assembly 2 comprises a signal acquisition module 4, a data processing module 5, a main control module 6 and a communication module 7, the signal acquisition module 4 is electrically connected with the electrode probe 3, and the signal acquisition module 4 is used for acquiring a water production conductance signal of a membrane system single-branch membrane column through the electrode probe 3; the data processing module 5 is electrically connected with the signal acquisition module 4, the data processing module 5 is also electrically connected with the main control module 6, and the data processing module 5 is used for processing the acquired conductance signals; the communication module 7 is electrically connected with the main control module 6, the communication module 7 is connected with a signal output cable 11, the signal output cable 11 is led to the outside of the shell 1, and the communication module 7 is used for outputting measurement data.
Specifically, the signal processing assembly 2 further comprises a power isolation module 8 and a power module 9, the data processing module 5 is electrically connected with the power module 9 through the power isolation module 8, and the main control module 6 is electrically connected with the power module 9. The power module 9 converts the 24V dc voltage into a 3.3V voltage for output, and supplies power to the main control module 6.
Specifically, the power supply module 9 adopts an MP2451 chip, and the power supply isolation module 8 adopts an ZA0501SD-RU chip. The signal acquisition module 4 adopts an AD23L101-PS chip; the data processing module 5 adopts an RI70221DS chip; the main control module 6 adopts a TS23F501-K chip; the communication module 7 adopts an 71756 communication chip.
Specifically, the shell 1 is made of corrosion-resistant and heat-resistant ABS plastic, and the signal processing assembly 2 is sealed inside the shell 1 through epoxy potting. Improve the corrosion resistance and the waterproof grade.
In one embodiment of the membrane system conductivity sensing device, the electrode probe 3 is externally provided with an external thread, and a hexagonal fastening part 10 is arranged at the joint of the electrode probe 3 and the shell 1. The outer thread 3/4' NPT is adopted, the hexagonal fastening part 10 is adopted in the middle part, and tools such as a wrench and the like are convenient to fasten during pipeline installation.
In one embodiment of the membrane system conductivity sensing device, the electrode probe 3 is made of 316L platinum black. When the measurement is carried out, the platinum black increases the surface area of the electrode, so that the polarization effect is reduced, meanwhile, the acquired data is calculated and corrected according to an internal program, and the error of the measured data is small.
In one embodiment of the membrane system conductivity sensing device, the electrode probe 3 is provided with a temperature sensor 12, the temperature sensor 12 is electrically connected with the signal acquisition module 4, and the temperature sensor is used for acquiring a temperature signal for temperature compensation. A temperature sensor 12 can be assembled in the electrode probe 3, and the temperature sensor 12 is connected with the signal acquisition module 4, so that automatic temperature compensation is realized, and the measurement precision is high.
In one embodiment of the membrane system conductivity sensing means the display device is connected via an RS485 interface. The centralized data acquisition is realized, and the display device is directly connected through the RS485 interface, so that the remote data transmission is realized, and the data acquisition can be performed on a plurality of conductivity sensors.
The utility model discloses signal processing subassembly 2 sets up in casing 1 inside, and signal processing subassembly 2 includes signal acquisition module 4, data processing module 5, host system 6 and communication module 7, and signal acquisition module 4 is connected with electrode probe 3 electricity, and signal acquisition module 4 is used for gathering membrane system single membrane post product water conductance signal through electrode probe 3; the data processing module 5 is electrically connected with the signal acquisition module 4, the data processing module 5 is also electrically connected with the main control module 6, and the data processing module 5 is used for processing the acquired conductance signals; the communication module 7 is electrically connected with the main control module 6, the communication module 7 is connected with a signal output cable 11, the signal output cable 11 is led to the outside of the shell 1, and the communication module 7 is used for outputting the measured data. The integrated design is adopted, the size is small, and the installation is simple; the shell 1 is made of corrosion-resistant and heat-resistant ABS plastic, and is sealed by epoxy potting adhesive, so that the corrosion resistance and the waterproof grade are improved; data are collected in a centralized manner and are directly connected with display equipment through RS485, so that long-distance transmission of data is realized, and data collection can be performed on a plurality of conductivity sensors; automatic temperature compensation is adopted, and the measurement precision is high; meanwhile, the electrode is made of special materials, so that the polarization effect is reduced; the MCU singlechip with high performance, low cost and low power consumption is adopted, simultaneously, the hardware design is compatible with multiple ranges, signal amplification and rectification filtering are adopted for processing signals on the hardware, calculation and correction are carried out on a control flow according to acquired data, and the error of measured data is small; the user investment is small, the operation is convenient, an external transmitter is not needed, the data can be checked through a PC (personal computer) terminal, and the operation is simple and convenient; the technical scheme can be specially used for detecting the water production conductance of a single membrane column in a membrane system, and the problem membrane column can be checked in a short time.
The technical features of the embodiments described above may be arbitrarily combined, and for the sake of brevity, all possible combinations of the technical features in the embodiments described above are not described, but should be considered as being within the scope of the present specification as long as there is no contradiction between the combinations of the technical features.
The above-mentioned embodiments only represent some embodiments of the present invention, and the description thereof is specific and detailed, but not to be construed as limiting the scope of the present invention. It should be noted that, for those skilled in the art, without departing from the spirit of the present invention, several variations and modifications can be made, which are within the scope of the present invention. Therefore, the protection scope of the present invention should be subject to the appended claims.
Claims (9)
1. The membrane system conductivity sensing device is characterized by comprising a shell (1), a signal processing assembly (2) and an electrode probe (3); the signal processing assembly (2) is arranged inside the shell (1), the signal processing assembly (2) comprises a signal acquisition module (4), a data processing module (5), a main control module (6) and a communication module (7), the signal acquisition module (4) is electrically connected with the electrode probe (3), and the signal acquisition module (4) is used for acquiring a water production conductance signal of a single membrane column of a membrane system through the electrode probe (3); the data processing module (5) is electrically connected with the signal acquisition module (4), the data processing module (5) is also electrically connected with the main control module (6), and the data processing module (5) is used for processing the acquired conductance signals; communication module (7) are connected with host system (6) electricity, and communication module (7) are connected with signal output cable (11), and signal output cable (11) lead to the outside of casing (1), communication module (7) are used for exporting measured data.
2. The membrane system conductivity sensing device according to claim 1, wherein the signal processing assembly (2) further comprises a power isolation module (8) and a power module (9), the data processing module (5) is electrically connected with the power module (9) through the power isolation module (8), and the main control module (6) is electrically connected with the power module (9).
3. The membrane system conductivity sensing device according to claim 2, wherein the power supply module (9) is an MP2451 chip and the power supply isolation module (8) is a ZA0501SD-RU chip.
4. The membrane system conductivity sensing device according to claim 1, wherein the signal acquisition module (4) employs an AD23L101-PS chip; the data processing module (5) adopts an RI70221DS chip; the main control module (6) adopts a TS23F501-K chip; the communication module (7) adopts an 71756 communication chip.
5. The membrane system conductivity sensing device according to claim 1, wherein the electrode probe (3) is externally formed with external threads, and a hexagonal fastening portion (10) is provided at the connection of the electrode probe (3) and the housing (1).
6. The membrane system conductivity sensing device of claim 1, wherein the electrode probe (3) is made of 316L platinum black.
7. A membrane system conductivity sensing device according to claim 1, wherein the electrode probe (3) is configured with a temperature sensor (12), the temperature sensor (12) is electrically connected with the signal acquisition module (4), and the temperature sensor (12) is used for acquiring a temperature signal for temperature compensation.
8. The membrane system conductivity sensing device of claim 1, wherein the display device is connected via an RS485 interface.
9. The membrane system conductivity sensor apparatus according to claim 1, wherein the signal processing module (2) is sealed inside the housing (1) by epoxy potting.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021275609.7U CN212622355U (en) | 2020-07-03 | 2020-07-03 | Membrane system conductivity sensing device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021275609.7U CN212622355U (en) | 2020-07-03 | 2020-07-03 | Membrane system conductivity sensing device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN212622355U true CN212622355U (en) | 2021-02-26 |
Family
ID=74757707
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202021275609.7U Active CN212622355U (en) | 2020-07-03 | 2020-07-03 | Membrane system conductivity sensing device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN212622355U (en) |
-
2020
- 2020-07-03 CN CN202021275609.7U patent/CN212622355U/en active Active
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN101782567B (en) | Intelligent ammonia nitrogen transmitting system and ammonia nitrogen in situ high-frequency detection method | |
| CN205808985U (en) | A kind of Novel integrated soil temperature-moisture sensor | |
| CN101498681B (en) | Electrode for measuring trace dissolved oxygen | |
| CN110658241A (en) | Multiple gas detection device | |
| CN212622355U (en) | Membrane system conductivity sensing device | |
| CN201364171Y (en) | Digital composite sensor | |
| CN202330403U (en) | Intelligent water quality monitoring system | |
| CN210464779U (en) | Prevent full intelligent pressure transmitter of jam | |
| CN208953527U (en) | A kind of multi-functional moisture tester | |
| CN202350927U (en) | Intelligently universal digital display device | |
| CN205352461U (en) | Dark monitoring devices of sea water temperature | |
| CN212275029U (en) | Novel networked capacitive wave height measuring device | |
| CN211978749U (en) | Multiple gas detection device | |
| CN207866382U (en) | A kind of Intellectual Thermal Transmitter | |
| CN207232058U (en) | A kind of soil pH value sensor with metal electrode | |
| CN208887835U (en) | A kind of intelligent self-diagnosing formula pressure transmitter device | |
| CN215297228U (en) | Ozone digital sensor based on constant voltage | |
| CN208270474U (en) | A kind of oxidation-reduction potential and temperature CONTINUOUS VISCOSITY MEASURING | |
| CN220932860U (en) | Acid-base strength detection sensor | |
| CN206400364U (en) | A kind of online Salingity Control Equipment of industry | |
| CN202794159U (en) | Water quality or solution parameter gauging transmitter | |
| CN210136199U (en) | Oxidation-reduction potential digital electrode | |
| CN220819890U (en) | Portable methanol water content analyzer | |
| CN211740277U (en) | Multifunctional monitoring device | |
| CN103051326A (en) | Interface circuit of micro electro mechanical system conductivity sensor |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| PE01 | Entry into force of the registration of the contract for pledge of patent right |
Denomination of utility model: A conductivity sensing device for membrane system Effective date of registration: 20210506 Granted publication date: 20210226 Pledgee: Yantai Xincai Haohan Investment Center (L.P.) Pledgor: YANTAI JINZHENG ECO-TECHNOLOGY Co.,Ltd. Registration number: Y2021980003272 |
|
| PE01 | Entry into force of the registration of the contract for pledge of patent right | ||
| PC01 | Cancellation of the registration of the contract for pledge of patent right | ||
| PC01 | Cancellation of the registration of the contract for pledge of patent right |
Date of cancellation: 20211021 Granted publication date: 20210226 Pledgee: Yantai Xincai Haohan Investment Center (L.P.) Pledgor: YANTAI JINZHENG ECO-TECHNOLOGY Co.,Ltd. Registration number: Y2021980003272 |
|
| PE01 | Entry into force of the registration of the contract for pledge of patent right | ||
| PE01 | Entry into force of the registration of the contract for pledge of patent right |
Denomination of utility model: A conductivity sensing device for membrane system Effective date of registration: 20211118 Granted publication date: 20210226 Pledgee: Yantai Xincai Haohan Investment Center (L.P.) Pledgor: YANTAI JINZHENG ECO-TECHNOLOGY Co.,Ltd. Registration number: Y2021370000138 |
|
| PC01 | Cancellation of the registration of the contract for pledge of patent right | ||
| PC01 | Cancellation of the registration of the contract for pledge of patent right |
Date of cancellation: 20220628 Granted publication date: 20210226 Pledgee: Yantai Xincai Haohan Investment Center (L.P.) Pledgor: YANTAI JINZHENG ECO-TECHNOLOGY Co.,Ltd. Registration number: Y2021370000138 |
|
| PE01 | Entry into force of the registration of the contract for pledge of patent right | ||
| PE01 | Entry into force of the registration of the contract for pledge of patent right |
Denomination of utility model: A conductivity sensor for membrane system Effective date of registration: 20220714 Granted publication date: 20210226 Pledgee: Yantai Xincai Haohan Investment Center (L.P.) Pledgor: YANTAI JINZHENG ECO-TECHNOLOGY Co.,Ltd. Registration number: Y2022370000086 |
|
| PC01 | Cancellation of the registration of the contract for pledge of patent right | ||
| PC01 | Cancellation of the registration of the contract for pledge of patent right |
Date of cancellation: 20230110 Granted publication date: 20210226 Pledgee: Yantai Xincai Haohan Investment Center (L.P.) Pledgor: YANTAI JINZHENG ECO-TECHNOLOGY Co.,Ltd. Registration number: Y2022370000086 |
|
| PE01 | Entry into force of the registration of the contract for pledge of patent right | ||
| PE01 | Entry into force of the registration of the contract for pledge of patent right |
Denomination of utility model: A conductivity sensing device for membrane system Effective date of registration: 20230112 Granted publication date: 20210226 Pledgee: Yantai Xincai Haohan Investment Center (L.P.) Pledgor: YANTAI JINZHENG ECO-TECHNOLOGY Co.,Ltd. Registration number: Y2023370000014 |
|
| PC01 | Cancellation of the registration of the contract for pledge of patent right | ||
| PC01 | Cancellation of the registration of the contract for pledge of patent right |
Date of cancellation: 20230307 Granted publication date: 20210226 Pledgee: Yantai Xincai Haohan Investment Center (L.P.) Pledgor: YANTAI JINZHENG ECO-TECHNOLOGY Co.,Ltd. Registration number: Y2023370000014 |
|
| PE01 | Entry into force of the registration of the contract for pledge of patent right | ||
| PE01 | Entry into force of the registration of the contract for pledge of patent right |
Denomination of utility model: A conductivity sensing device for membrane systems Effective date of registration: 20230314 Granted publication date: 20210226 Pledgee: Yantai Xincai Haohan Investment Center (L.P.) Pledgor: YANTAI JINZHENG ECO-TECHNOLOGY Co.,Ltd. Registration number: Y2023370000052 |