CN203132728U - Portable high-precision water temperature measuring apparatus - Google Patents
Portable high-precision water temperature measuring apparatus Download PDFInfo
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- CN203132728U CN203132728U CN 201320071918 CN201320071918U CN203132728U CN 203132728 U CN203132728 U CN 203132728U CN 201320071918 CN201320071918 CN 201320071918 CN 201320071918 U CN201320071918 U CN 201320071918U CN 203132728 U CN203132728 U CN 203132728U
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- delivering orifice
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Abstract
The utility model discloses a portable high-precision water temperature measuring apparatus comprising a connecting rod. A meter containing a measuring control module is arranged on one end of the connecting rod. The other end of the connecting rod is connected with a water inlet joint by a sensor base. A signal output terminal of a sensor in the sensor base is electrically connected with a signal input terminal of the measuring control module. The water inlet joint is provided with a channel. The channel is provided with a water inlet and a water outlet, wherein the water inlet and the water outlet are spaced for a certain distance along a channel length direction. A flow direction in the water outlet and a flow inverse direction in the channel form an included angle less than 90 DEG. According to the water temperature measuring apparatus provided by the utility model, flow speed can be reduced, water pressure is increased and stabilized, sufficient heat exchange is realized between the water and the sensor, heat balance is rapidly achieved, so that the sensor can accurately measure water temperatures in a short time, efficiency and precision of measuring the water temperature are raised and the apparatus can convert sensor signals to digital electric signals in situ.
Description
Technical field
The utility model relates to a kind of instrument of measuring water temperature difference, relates in particular to a kind of portable high-accuracy temperature measurement device.
Background technology
In ironmaking was produced, operating personnel often will detect and observe the water-in and water-out temperature difference of blast-furnace cooled water bag.This temperature difference can reflect intact situation and the ruuning situation of blast furnace, for operating personnel provide operating basis.Be example with Qian'an steel plant of Shougang Group blast furnace, the water-in and water-out temperature difference of 3 sections chilled water bags of shaft should if the water-in and water-out temperature difference exceeds this scope, just mean and may go wrong that the staff will analyze, take measures at 0.2 ℃ ~ 0.7 ℃.Therefore temperature measurement is an important process in the ironmaking processes, and the accuracy requirement of temperature measurement is also very high.Because the entery and delivery port point for measuring temperature is not usually at a place, this has also improved the requirement to measuring accuracy.
In the prior art, for the measurement of blast-furnace cooled water bag temperature also useful online mode, yet in the actual work, owing to be arranged on the inconsistency of the sensor of each water delivering orifice, and the reasons such as influence of pipe surface temperature cause the temperature difference calculating deviation often to occur, brought difficulty for accurately judging, therefore, the portable temperature measurement device of artificial use carries out non-online temperature survey and remains the requisite work of steel mill, owing to directly sensor is placed into, water delivering orifice is measured water temperature, is difficult to reach thermal equilibrium at short notice, makes sensor place temperature infinitely near water temperature, be difficult to record exactly water temperature, reduced measurement efficient and measuring accuracy.Again because, device needs the waiting temperature balance time long, in the face of the temperature survey of a hundreds of water delivering orifice, working strength of workers is big, owing to fatigue has further been brought the inaccurate problem of measurement.
The utility model content
The technical problems to be solved in the utility model provides a kind of portable high-accuracy temperature measurement device, this device can be realized the turbulent flow of water, make water between the Guan Zhongyu sensor, realize sufficient heat interchange, reach thermal equilibrium rapidly, make sensor record water temperature at short notice exactly, improve efficient and the precision of measuring water temperature.
In order to solve the problems of the technologies described above, the portable high-accuracy temperature measurement device that the utility model provides comprises connecting link; One end of described connecting link is provided with and contains the gauge outfit of measuring control module; The connecting link of this end is provided with handle; The other end of described connecting link is connected with a water supply connector by a sensor holder, the signal output part of sensor is electrically connected with the signal input part of described measurement control module in the sensor holder, described water supply connector have a passage and one and this passage UNICOM be used for make the detecting head watertight feud of sensor penetrate the interface of this passage, described passage is provided with a water inlet and a water delivering orifice, described water inlet and water delivering orifice are spaced a distance along the direction of passage length, and the current in the water (flow) direction in the described water delivering orifice and the described passage form one in the other direction less than 90 ° angle.
Described water inlet and water delivering orifice are 15mm to 25mm along the length of channel-length direction spacing distance.
The angle that current in water (flow) direction in the described water delivering orifice and the described passage form in the other direction is between 30 ° to 75 °.
The angle that current in water (flow) direction in the described water delivering orifice and the described passage form in the other direction is 35 °, 45 °, 55 ° or 60 °; Described water inlet and water delivering orifice are 21mm along the length of channel-length direction distance at interval.
Described water supply connector is the tubular structure of end sealing, and an end of its opening forms described interface, and its internal cavities forms described passage, and described water inlet and water delivering orifice are distributed in the both sides of described passage; The blind end of the contiguous described water supply connector of described water inlet, its water inlet direction is perpendicular to the length direction of described passage; The openend of the contiguous described water supply connector of described water delivering orifice.
Described water-stop is for being nested with on described sensor successively and filling in heat-insulating base, insulating collar, heat insulating mattress and pressure mother in the sensor holder cavity.
Described sensor comprises pillar and thermal resistance, the front opening of pillar, front opening side falling heat-transfer material at pillar seals the pillar forward open end, described thermal resistance is fixed in the heat conduction encapsulant, and wherein said thermoelectric resistance body has at least 1/3rd to expose from the heat conduction encapsulant in pillar front opening side.
Mould/number conversion module, memory module, display screen and operating key that described measurement control module comprises data processing module and is electrically connected with it, described memory module is provided with the interface that is connected with computer.
Connecting link is hollow stem, wherein is provided with signal wire; The signal output part of described sensor is electrically connected by described signal wire with the signal input part of described measurement control module.
The technical program compared with prior art has following beneficial effect: the technical program is owing to the direction that has adopted water inlet and water delivering orifice along passage length is spaced a distance, water (flow) direction in the water delivering orifice and the current in the passage form one in the other direction less than the technological means of 90 ° angle, current oppositely flow out through water delivering orifice, increased the resistance of current, so, this water supply connector can reduce water velocity, and in sensor place formation turbulent flow, increase the also pressure of stabilize water, make and realize sufficient heat interchange between water and the sensor, reach thermal equilibrium rapidly, this device is directly exposed in the water thermal resistance in the sensor in addition, therefore the two has improved efficient and the precision of measuring water temperature in conjunction with recording water temperature exactly in 1 to 2 second short time; Accelerate measuring speed, lowered working strength of workers.
Description of drawings
The utility model is made the detailed description in a step below in conjunction with the drawings and specific embodiments.
Fig. 1 is the utility model structure cross-sectional schematic.
Fig. 2 is the vertical profile structural representation of the utility model water supply connector.
Fig. 3 is the inner connecting structure synoptic diagram that the utility model is measured control module.
Embodiment
As depicted in figs. 1 and 2, the portable high-accuracy temperature measurement device that present embodiment provides comprises connecting link 3; One end of described connecting link 3 is provided with and contains the gauge outfit 4 of measuring control module 8; The connecting link of this end is provided with handle 5; The other end of described connecting link 3 is connected with a water supply connector 1 by a sensor holder 6, the signal output part of sensor 2 is electrically connected with the signal input part of described measurement control module 8 in the sensor holder 6, described water supply connector 1 have a passage 11 and one and these passage 11 UNICOMs be used for make the detecting head watertight feud of sensor 2 penetrate the interface 12 of this passage 11, described passage 11 is provided with a water inlet 13 and a water delivering orifice 14, described water inlet 13 and water delivering orifice 14 are spaced a distance along the direction of passage 11 length, and the water (flow) direction in the described water delivering orifice 14 and the current in the described passage 11 form one in the other direction less than 90 ° angle.
Present embodiment is owing to the direction that has adopted water inlet and water delivering orifice along passage length is spaced a distance, water (flow) direction in the water delivering orifice and the current in the passage form an included angle A in the other direction, this included angle A is less than 90 ° technological means, current oppositely flow out through water delivering orifice, the resistance that has increased current forms turbulent flow, so, this water supply connector can reduce water velocity, increase the also pressure of stabilize water, make and realize sufficient heat interchange between water and the sensor, reach thermal equilibrium rapidly, make sensor record water temperature at short notice exactly, improved efficient and the precision of measuring water temperature.As can be seen from Figure 1, connecting link 3 is hollow stems, wherein is provided with signal wire (not drawing among the figure); The signal output part of described sensor is electrically connected by described signal wire with the signal input part of described measurement control module.Like this, both can under the condition of saving material, improve the rigidity of connecting link, simultaneously, also signal wire played a protective role.
As a kind of improvement of present embodiment, as shown in Figure 2, described water inlet 13 and water delivering orifice 14 are 15mm to 25mm along the length of passage 11 length direction spacing distances.Like this, can guarantee probe thermometric under more stable condition of sensor.Facts have proved: its length is its best results of 21mm.
Further improve as present embodiment, as shown in Figure 2, the included angle A that the water (flow) direction in the described water delivering orifice 14 and the current in the described passage 11 form in the other direction is between 30 ° to 75 °.Such angle can make the measuring accuracy of sensor be significantly improved.Particularly when included angle A was 35 °, 45 °, 55 ° or 60 °, the measuring accuracy of sensor increased significantly.
Further improve again as present embodiment, as shown in Figure 2, described water supply connector 1 is the tubular structure of end sealing, and an end of its opening forms described interface 12, its internal cavities forms described passage 11, and described water inlet 13 and water delivering orifice 14 are distributed in the both sides of described passage 11; The blind end of described water inlet 13 contiguous described water supply connectors 1, its water inlet direction is perpendicular to the length direction of described passage 11; The openend of described water delivering orifice 14 contiguous described water supply connectors 1.Operating personnel's operation is convenient in the water supply connector of this kind structure.
Further improve again as present embodiment, as shown in Figure 1, described water-stop is for being nested with on described sensor 2 successively and filling in heat-insulating base 71, insulating collar 72, the heat insulating mattress 73 in sensor holder 6 cavitys and press female 74.Present embodiment is the technological means that is nested with on sensor successively and fills in heat-insulating base, insulating collar, heat insulating mattress and pressure mother in the sensor holder cavity owing to having adopted water-stop parts 7, so, the water-stop parts not only play the effect of water-stop, and, can improve the precision of measuring temperature further, make measuring accuracy reach 0.01 ℃.
Further improve as present embodiment, described sensor 2 comprises pillar and thermal resistance 21, the front opening of pillar, front opening side falling heat-transfer material at pillar seals the pillar forward open end, described thermal resistance is fixed in the heat conduction encapsulant, and wherein said thermoelectric resistance body has at least 1/3rd to expose from the heat conduction encapsulant in pillar front opening side.Thermal resistance 21 is the PT1000 thermal resistance.Present embodiment is the technological means of PT1000 thermal resistance owing to having adopted sensor, and the PT1000 thermal resistance is in the scope of 0 ℃ ~ 100 ℃ of water temperatures, and its precision and linear relationship are best, so, can further improve the precision of measuring temperature.
Also further improve as present embodiment, as shown in Figure 3, mould/number conversion module 81, memory module 83, display screen 85 and operating key 86 that described measurement control module 8 comprises data processing module 82 and is electrically connected with it, described memory module 83 is provided with the interface 84 that is connected with computer, and described sensor 2 is electrically connected with described mould/number conversion module 81.Present embodiment is because mould/number conversion module, memory module, display screen and the operating key that has adopted the measurement control module to comprise data processing module and be electrically connected with it, memory module is provided with the technological means of the interface that is connected with computer, so, can further analog electrical signal be converted to digital electric signal on the spot, and in time digital electric signal is carried out preliminary processing, carry out the data storage, observation data in time, can in time carry out artificial treatment to the data of mistake, also data can be sent to computing machine and handle.Adopt this mode, transmission does not produce error, and measuring accuracy is exactly system accuracy, as long as guarantee measuring accuracy.This mode is for once changed, and the precision height is saved cable, reduces expenses.
Claims (9)
1. a portable high-accuracy temperature measurement device comprises connecting link; One end of described connecting link is provided with and contains the gauge outfit of measuring control module; The connecting link of this end is provided with handle; The other end of described connecting link is connected with a water supply connector by a sensor holder, the signal output part of sensor is electrically connected with the signal input part of described measurement control module in the sensor holder, described water supply connector have a passage and one and this passage UNICOM be used for make the detecting head watertight feud of sensor penetrate the interface of this passage, described passage is provided with a water inlet and a water delivering orifice, it is characterized in that: described water inlet and water delivering orifice are spaced a distance along the direction of passage length, and the current in the water (flow) direction in the described water delivering orifice and the described passage form one in the other direction less than 90 ° angle.
2. portable high-accuracy temperature measurement device according to claim 1, it is characterized in that: described water inlet and water delivering orifice are 15mm to 25mm along the length of channel-length direction spacing distance.
3. portable high-accuracy temperature measurement device according to claim 1, it is characterized in that: the angle that the current in the water (flow) direction in the described water delivering orifice and the described passage form in the other direction is between 30 ° to 75 °.
4. portable high-accuracy temperature measurement device according to claim 1, it is characterized in that: the angle that the current in the water (flow) direction in the described water delivering orifice and the described passage form in the other direction is 35 °, 45 °, 55 ° or 60 °; Described water inlet and water delivering orifice are 21mm along the length of channel-length direction distance at interval.
5. portable high-accuracy temperature measurement device according to claim 1, it is characterized in that: described water supply connector is the tubular structure of end sealing, one end of its opening forms described interface, and its internal cavities forms described passage, and described water inlet and water delivering orifice are distributed in the both sides of described passage; The blind end of the contiguous described water supply connector of described water inlet, its water inlet direction is perpendicular to the length direction of described passage; The openend of the contiguous described water supply connector of described water delivering orifice.
6. portable high-accuracy temperature measurement device according to claim 1 is characterized in that: described water-stop is for being nested with on described sensor successively and filling in heat-insulating base, insulating collar, heat insulating mattress and pressure mother in the sensor holder cavity.
7. portable high-accuracy temperature measurement device according to claim 1, it is characterized in that: described sensor comprises pillar and thermal resistance, the front opening of pillar, front opening side falling heat-transfer material at pillar seals the pillar forward open end, described thermal resistance is fixed in the heat conduction encapsulant, and wherein said thermoelectric resistance body has at least 1/3rd to expose from the heat conduction encapsulant in pillar front opening side.
8. portable high-accuracy temperature measurement device according to claim 1, it is characterized in that: mould/number conversion module, memory module, display screen and operating key that described measurement control module comprises data processing module and is electrically connected with it, described memory module is provided with the interface that is connected with computer.
9. portable high-accuracy temperature measurement device according to claim 1, it is characterized in that: connecting link is hollow stem, wherein is provided with signal wire; The signal output part of described sensor is electrically connected by described signal wire with the signal input part of described measurement control module.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320071918 CN203132728U (en) | 2013-02-08 | 2013-02-08 | Portable high-precision water temperature measuring apparatus |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320071918 CN203132728U (en) | 2013-02-08 | 2013-02-08 | Portable high-precision water temperature measuring apparatus |
Publications (1)
| Publication Number | Publication Date |
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| CN203132728U true CN203132728U (en) | 2013-08-14 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201320071918 Expired - Lifetime CN203132728U (en) | 2013-02-08 | 2013-02-08 | Portable high-precision water temperature measuring apparatus |
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| CN (1) | CN203132728U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104748878A (en) * | 2013-12-25 | 2015-07-01 | 珠海格力电器股份有限公司 | Water system temperature testing tool |
| CN104990635A (en) * | 2015-07-02 | 2015-10-21 | 李广连 | Steel furnace thermoscope |
| CN112489832A (en) * | 2020-12-08 | 2021-03-12 | 中国人民解放军海军工程大学 | Thermotechnical natural circulation experimental instrument with stepless flow speed adjusting device and method |
| CN112525369A (en) * | 2020-11-13 | 2021-03-19 | 浙江启尔机电技术有限公司 | Platinum resistor temperature sensor packaging structure and temperature measurement using method thereof |
-
2013
- 2013-02-08 CN CN 201320071918 patent/CN203132728U/en not_active Expired - Lifetime
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104748878A (en) * | 2013-12-25 | 2015-07-01 | 珠海格力电器股份有限公司 | Water system temperature testing tool |
| CN104990635A (en) * | 2015-07-02 | 2015-10-21 | 李广连 | Steel furnace thermoscope |
| CN112525369A (en) * | 2020-11-13 | 2021-03-19 | 浙江启尔机电技术有限公司 | Platinum resistor temperature sensor packaging structure and temperature measurement using method thereof |
| CN112489832A (en) * | 2020-12-08 | 2021-03-12 | 中国人民解放军海军工程大学 | Thermotechnical natural circulation experimental instrument with stepless flow speed adjusting device and method |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20130814 |