CN211740304U - High-precision multi-parameter flowmeter based on RS485 communication - Google Patents
High-precision multi-parameter flowmeter based on RS485 communication Download PDFInfo
- Publication number
- CN211740304U CN211740304U CN202020751968.9U CN202020751968U CN211740304U CN 211740304 U CN211740304 U CN 211740304U CN 202020751968 U CN202020751968 U CN 202020751968U CN 211740304 U CN211740304 U CN 211740304U
- Authority
- CN
- China
- Prior art keywords
- pressure
- sensor
- temperature sensor
- hole
- interface module
- 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
Images
Landscapes
- Details Of Flowmeters (AREA)
- Measuring Volume Flow (AREA)
Abstract
The utility model discloses a high accuracy multi-parameter flowmeter based on RS485 communication, including body, nozzle cascade, temperature sensor and pressure sensor, pressure sensor adopts monocrystalline silicon pressure differential core sensor, seted up the temperature sensor mounting hole on the body, install temperature sensor in the temperature sensor mounting hole, install the nozzle cascade in the middle of the body inner wall, seted up the nozzle hole on the nozzle cascade, seted up differential pressure measurement station high-pressure hole and differential pressure measurement station low-pressure hole on the body at nozzle cascade both ends respectively; the central processing unit is respectively connected with the analog-to-digital converter, the input keys on the display shell, the display screen and the data interface module on the display shell, and the data interface module is used for connecting an external data line. The utility model discloses structural arrangement is reasonable, is favorable to the later maintenance to change the part, and the rubber buffer can be isolated with the outside with the electronic component in outer plug bush and the display housing, ensures the internal element normal operating.
Description
Technical Field
The utility model relates to a flowmeter technical field specifically is a high accuracy multi-parameter flowmeter based on RS485 communication.
Background
The flowmeter is known by its english name flowmeter, which is defined by the national committee for the examination and determination of scientific and technical terms as: meters that indicate the measured flow rate and/or the total amount of fluid in a selected time interval. Simply a meter for measuring the flow of fluid in a pipe or open channel.
The flow meters are classified into differential pressure type flow meters, rotor flow meters, throttle type flow meters, slit flow meters, volumetric flow meters, electromagnetic flow meters, ultrasonic flow meters, and the like. Classifying according to media: liquid flow meters and gas flow meters. The existing liquid flowmeter is not reasonable in structural arrangement, time-consuming in early-stage production and manufacturing and inconvenient in later-stage maintenance; the internal electronic components are not completely sealed, and water vapor in the air is easily accumulated on the inner wall of the shell, so that subsequent normal use of each component is not utilized.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide a high accuracy multi-parameter flowmeter based on RS485 communication to solve the problem of proposing among the above-mentioned background art.
In order to achieve the above object, the utility model provides a following technical scheme:
a high-precision multi-parameter flowmeter based on RS485 communication comprises a pipe body, a nozzle ring, a temperature sensor and a pressure sensor, wherein the pressure sensor adopts a monocrystalline silicon differential pressure core sensor, the pipe body is provided with a temperature sensor mounting hole, the temperature sensor is mounted in the temperature sensor mounting hole, the nozzle ring is mounted in the middle of the inner wall of the pipe body, the nozzle ring is provided with a nozzle hole, the pipe body at two ends of the nozzle ring is respectively provided with a differential pressure measuring point high-pressure hole and a differential pressure measuring point low-pressure hole, a high-pressure detection probe is fixedly mounted in the differential pressure measuring point high-pressure hole, and;
the outer wall of the pipe body is extended with a boss base, the upper end face of the boss base is provided with an installation jack, an outer plug bush is screwed in the installation jack, the side wall of the lower end of the outer plug bush is provided with a wire harness hole, the top end of the outer plug bush is fixedly provided with a display shell, an input module, an analog-to-digital converter, a sensor parameter memory and a central processing unit are arranged in the display shell, the input module supplies power to the central processing unit, the analog-to-digital converter, a temperature sensor and a pressure sensor through a power management module, the central processing unit is respectively connected with the analog-to-digital converter, the sensor parameter memory, an input key on the display shell, a display screen and a data interface module on;
the pressure sensor is arranged in the outer plug bush, a high-pressure detection end of the pressure sensor is connected with the high-pressure detection probe through a capillary tube, a low-pressure detection end of the pressure sensor is connected with the low-pressure detection probe through a capillary tube, the two capillary tubes penetrate through the wiring harness holes, and a signal output end of the pressure sensor is connected with a signal input end of the analog-to-digital converter through a pressure signal line;
the temperature sensor is connected with the signal input end of the analog-to-digital converter through a temperature signal line, and the temperature signal line penetrates through the wiring harness hole.
Preferably, an external socket is further arranged on the display shell, the data interface module is arranged in the external socket, and the data interface module adopts an RS485 interface module.
Preferably, a step ring extends in the middle of the inner wall of the tube body, a pair of pin holes is further formed in the end face of the nozzle ring, and the nozzle ring is in threaded fit connection with the step ring through threads on the periphery.
Preferably, the two ends of the pipe body respectively and integrally extend to form a pipe body flange, and the outer side end face of the pipe body flange is provided with a sealing installation ring groove for installing a sealing ring.
Preferably, the capillary and the temperature signal line are sleeved with rubber plugs for plugging corresponding wire harness holes.
Preferably, the rubber buffer includes outer plug cap, middle plug post and the conical head portion that stretches into in the pencil hole.
Compared with the prior art, the beneficial effects of the utility model are that: the pipeline pressure and temperature data in the pipeline body can be detected through the temperature sensor and the pressure sensor, the central processing unit is connected with an external data line through the RS485 interface module, the flow data and the temperature data can be transmitted out, the data transmission distance is long, external interference can be better reduced, and the data transmission stability is improved; the wiring harness hole is sealed by the rubber plug, so that the electronic components in the outer plug bush and the display shell are isolated from the outside, and the wiring harness is used for preventing dust and water and ensuring the normal operation of internal components; the pipe body, the outer plug bush, the temperature sensor, the high-voltage detection probe and the low-voltage detection probe can be disassembled and assembled, and later maintenance and part replacement are facilitated. The utility model discloses structural arrangement is reasonable, is favorable to the later maintenance to change the part, and the rubber buffer can be isolated with the outside with the electronic component in outer plug bush and the display housing, ensures the internal element normal operating.
Drawings
FIG. 1 is a schematic structural diagram of a high-precision multi-parameter flowmeter based on RS485 communication;
FIG. 2 is a schematic structural diagram of a section A-A of a pipe body in a high-precision multi-parameter flowmeter based on RS485 communication;
FIG. 3 is a schematic structural diagram of the high-precision multiparameter flowmeter based on RS485 communication after a pipe body is removed;
fig. 4 is a block diagram of connection of modules in a high-precision multi-parameter flowmeter based on RS485 communication.
In the figure: 100-a central processing unit, 101-an input module, 102-a power management module, 103-a temperature sensor, 104-a pressure sensor, 105-an analog-to-digital converter, 106-a data interface module, 107-an input button, 108-a display screen, 109-a sensor parameter memory, 1-a tube, 11-a step ring, 12-a differential pressure measuring point high pressure hole, 13-a differential pressure measuring point low pressure hole, 14-a temperature sensor mounting hole, 15-a boss seat, 2-a nozzle ring, 21-a nozzle hole, 22-a bolt hole, 3-a tube flange, 31-a sealing mounting ring groove, 4-an external plug bush, 41-a capillary tube, 42-a temperature signal line, 43-a wire harness hole, 5-a display shell and 51-an external socket, 6-high pressure detecting probe, 7-low pressure detecting probe, 8-rubber plug.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.
Referring to fig. 1 to 4, the present invention provides a technical solution: a high-precision multi-parameter flowmeter based on RS485 communication comprises a pipe body 1, a nozzle ring 2, a temperature sensor 103 and a pressure sensor 104, wherein the pressure sensor 104 adopts a monocrystalline silicon differential pressure core sensor, the pipe body 1 is provided with a temperature sensor mounting hole 14, the temperature sensor 103 is mounted in the temperature sensor mounting hole 14, the nozzle ring 2 is mounted in the middle of the inner wall of the pipe body 1, the nozzle ring 2 is provided with a nozzle hole 21, the pipe body 1 at two ends of the nozzle ring 2 is respectively provided with a differential pressure measuring point high-pressure hole 12 and a differential pressure measuring point low-pressure hole 13, a high-pressure detection probe 6 is fixedly mounted in the differential pressure measuring point high-pressure hole 12, and a low-pressure detection;
a boss base 15 extends from the outer wall of the pipe body 1, a mounting jack is formed in the upper end face of the boss base 15, an outer plug bush 4 is screwed in the mounting jack, a wire bundle hole 43 is formed in the side wall of the lower end of the outer plug bush 4, a display shell 5 is fixedly mounted at the top end of the outer plug bush 4, an input module 101, an analog-to-digital converter 105, a sensor parameter memory 109 and a central processor 100 are arranged in the display shell 5, the input module 101 supplies power to the central processor 100, the analog-to-digital converter 105, a temperature sensor 103 and a pressure sensor 104 through a power management module 102, the central processor 100 is respectively connected with the analog-to-digital converter 105, the sensor parameter memory 109, an input key 107 on the display shell 5, a display screen 108 and a data interface module 106 on the display shell 5, and the;
a pressure sensor 104 is arranged in the outer plug bush 4, a high-pressure detection end of the pressure sensor 104 is connected with a high-pressure detection probe 6 through a capillary tube 41, a low-pressure detection end of the pressure sensor 104 is connected with a low-pressure detection probe 7 through a capillary tube 41, the two capillary tubes 41 penetrate through a wiring harness hole 43, and a signal output end of the pressure sensor 104 is connected with a signal input end of an analog-to-digital converter 105 through a pressure signal line;
the temperature sensor 103 is connected with a signal input end of the analog-to-digital converter 105 through a temperature signal wire 42, and the temperature signal wire 42 passes through the wiring harness hole 43.
Data such as temperature, pressure, hourly flow of fluid, total cumulative flow, yesterday production and the like can be displayed through the display screen 108, and the data is convenient for a user to view. The input module 101 may employ DC 9-36V inputs, and a wide voltage may be used in a variety of different applications. In actual use, the whole working current is within 40 mA. The pressure sensor 104 outputs a voltage signal, when the pressure sensor 104 detects a change in pressure difference, the voltage signal also changes accordingly and is transmitted to the analog-to-digital converter 105, the voltage signal is converted into a digital signal by the analog-to-digital converter 105, and the corresponding flow rate in the pipe body 1 can be calculated by the existing method through the obtained pressure difference data; the temperature sensor 103 detects the temperature in the pipe body 1, transmits the temperature to the analog-to-digital converter 105, converts the temperature into a temperature digital signal through the analog-to-digital converter 105, and then transmits the temperature digital signal to the central processing unit 100, and the central processing unit 100 is connected with an external data line through the data interface module 106 to transmit the flow data and the temperature data.
Wherein, still be provided with external socket 51 on the display housing 5, data interface module 106 sets up in external socket 51, and data interface module 106 adopts RS485 interface module, and effectual data transmission distance is up to 1 kilometer, and better reduction external disturbance improves data transmission to and the stability of whole product.
A step ring 11 extends in the middle of the inner wall of the pipe body 1, a pair of pin holes 22 is further formed in the end face of the nozzle ring 2, and the nozzle ring 2 is connected with the step ring 11 in a threaded fit manner through threads on the periphery. The tip of the sharp-nose pliers is inserted into the bolt holes 22, so that the nozzle ring 2 can be detached from the inner wall of the tube body 1 for replacement, and the operation and maintenance are convenient.
The two ends of the pipe body 1 are respectively integrally extended with a pipe body flange 3, and the outer side end face of the pipe body flange 3 is provided with a sealing installation ring groove 31 for installing a sealing ring.
The capillary 41 and the temperature signal line 42 are sleeved with rubber plugs 8 used for plugging corresponding wire harness holes 43. The rubber stopper 8 comprises an outer stopper cap, a middle stopper column and a conical head part extending into the wiring harness hole 43. Simple structure, equipment convenient operation seals up pencil hole 43 through rubber buffer 8, and the electronic component in with outer plug bush 4 and the display housing 5 is isolated with the outside for dustproof and waterproof ensures the internal component normal operating.
It is obvious to a person skilled in the art that the invention is not restricted to details of the above-described exemplary embodiments, but that it can be implemented in other specific forms without departing from the spirit or essential characteristics of the invention. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.
Furthermore, it should be understood that although the present description refers to embodiments, not every embodiment may contain only a single embodiment, and such description is for clarity only, and those skilled in the art should integrate the description, and the embodiments may be combined as appropriate to form other embodiments understood by those skilled in the art.
Claims (6)
1. The utility model provides a high accuracy multi-parameter flowmeter based on RS485 communication, includes body (1), nozzle ring (2), temperature sensor (103) and pressure sensor (104), and pressure sensor (104) adopt monocrystalline silicon pressure differential core sensor, its characterized in that: the temperature sensor detection device is characterized in that a temperature sensor mounting hole (14) is formed in the tube body (1), a temperature sensor (103) is mounted in the temperature sensor mounting hole (14), a nozzle ring (2) is mounted in the middle of the inner wall of the tube body (1), a nozzle hole (21) is formed in the nozzle ring (2), differential pressure measuring point high-pressure holes (12) and differential pressure measuring point low-pressure holes (13) are formed in the tube body (1) at two ends of the nozzle ring (2) respectively, a high-pressure detection probe (6) is fixedly mounted in each differential pressure measuring point high-pressure hole (12), and a low-pressure detection probe (7) is fixedly;
extend on the outer wall of body (1) and have boss seat (15), the installation jack has been seted up to boss seat (15) up end face, outer plug bush (4) are equipped with soon to the installation jack internal thread, set up on the lower extreme lateral wall of outer plug bush (4) wire harness hole (43), the top fixed mounting of outer plug bush (4) has display housing (5), be provided with input module (101) in display housing (5), analog-to-digital converter (105), sensor parameter memory (109) and central processing unit (100), input module (101) are through power management module (102) to central processing unit (100), analog-to-digital converter (105), temperature sensor (103) and pressure sensor (104) power supply, central processing unit (100) respectively with analog-to-digital converter (105), sensor parameter memory (109), input button (107) on display housing (5), The display screen (108) is connected with the data interface module (106) on the display shell (5), and the data interface module (106) is used for connecting an external data line;
a pressure sensor (104) is arranged in the outer plug bush (4), a high-pressure detection end of the pressure sensor (104) is connected with a high-pressure detection probe (6) through a capillary tube (41), a low-pressure detection end of the pressure sensor (104) is connected with a low-pressure detection probe (7) through a capillary tube (41), the two capillary tubes (41) penetrate through a wiring harness hole (43), and a signal output end of the pressure sensor (104) is connected with a signal input end of an analog-to-digital converter (105) through a pressure signal line;
the temperature sensor (103) is connected with the signal input end of the analog-to-digital converter (105) through a temperature signal line (42), and the temperature signal line (42) penetrates through the wiring harness hole (43).
2. The RS485 communication based high-precision multi-parameter flowmeter according to claim 1, wherein: still be provided with external socket (51) on display housing (5), data interface module (106) set up in external socket (51), and data interface module (106) adopt RS485 interface module.
3. The RS485 communication based high-precision multi-parameter flowmeter according to claim 1, wherein: the nozzle ring is characterized in that a step ring (11) extends in the middle of the inner wall of the pipe body (1), a pair of bolt holes (22) is further formed in the end face of the nozzle ring (2), and the nozzle ring (2) is in threaded fit connection with the step ring (11) through peripheral threads.
4. The RS485 communication based high-precision multi-parameter flowmeter according to claim 1, wherein: the two ends of the pipe body (1) are respectively and integrally extended with a pipe body flange (3), and the outer side end face of the pipe body flange (3) is provided with a sealing installation ring groove (31) for installing a sealing ring.
5. The RS485 communication based high-precision multi-parameter flowmeter according to claim 1, wherein: and the capillary tube (41) and the temperature signal wire (42) are sleeved with rubber stoppers (8) for plugging corresponding wire harness holes (43).
6. The RS485 communication based high-precision multi-parameter flowmeter according to claim 5, wherein: the rubber buffer (8) comprises an external plug cap, a middle plug column and a conical head part extending into the wiring harness hole (43).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020751968.9U CN211740304U (en) | 2020-05-08 | 2020-05-08 | High-precision multi-parameter flowmeter based on RS485 communication |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020751968.9U CN211740304U (en) | 2020-05-08 | 2020-05-08 | High-precision multi-parameter flowmeter based on RS485 communication |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN211740304U true CN211740304U (en) | 2020-10-23 |
Family
ID=72851427
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202020751968.9U Active CN211740304U (en) | 2020-05-08 | 2020-05-08 | High-precision multi-parameter flowmeter based on RS485 communication |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN211740304U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112798466A (en) * | 2021-02-02 | 2021-05-14 | 上海朝辉压力仪器有限公司 | Multi-parameter densimeter |
-
2020
- 2020-05-08 CN CN202020751968.9U patent/CN211740304U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112798466A (en) * | 2021-02-02 | 2021-05-14 | 上海朝辉压力仪器有限公司 | Multi-parameter densimeter |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN211740304U (en) | High-precision multi-parameter flowmeter based on RS485 communication | |
| CN215761650U (en) | Wireless digital temperature transmitter device | |
| CN205404564U (en) | Dedicated water quality testing device in water utilities | |
| CN205483287U (en) | Full metal temperature changer of corrosion -resistant type | |
| CN209342800U (en) | A kind of current detecting instrument | |
| CN204556160U (en) | A kind of digital pressure transmitter | |
| CN211740305U (en) | High-sensitivity multi-parameter flow meter based on ZigBee network | |
| CN202885910U (en) | Air bubble type water level measuring device | |
| CN111442807A (en) | High-sensitivity multi-parameter flow meter based on ZigBee network | |
| CN201241689Y (en) | Five-parameter combination logging tool | |
| CN214308911U (en) | Flowmeter based on multiple parameters | |
| CN1139787C (en) | Combined sensor assembly for measuring several parameters of gas and liquid fluid inside pipe | |
| CN215767209U (en) | Wide-range magnetoelectric flowmeter for water distribution | |
| CN211651714U (en) | Acquisition remote transmission device for flowmeter metering data | |
| CN206530569U (en) | Wind-driven generator hydraulic auxiliary elastic-support monitoring device | |
| CN112483073B (en) | Multifunctional pressure gauge mounting device | |
| CN206132161U (en) | Flowmeter connects | |
| CN218524205U (en) | High-speed acquisition flowmeter based on LORA communication | |
| CN214374762U (en) | Mining gas drainage multi-parameter sensor | |
| CN214407619U (en) | Conductivity measuring system of electromagnetic flowmeter | |
| CN214173459U (en) | Venturi flow meter | |
| CN219610849U (en) | High-tightness connector of linear temperature sensor | |
| CN109029834A (en) | A kind of pressure gauge | |
| CN203299257U (en) | Portable static voltage collecting reader | |
| CN220525196U (en) | Special sensor capable of setting alarm value |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |