CN2283255Y - Cold equipment heat transfer coefficient on line measuring instrument - Google Patents
Cold equipment heat transfer coefficient on line measuring instrument Download PDFInfo
- Publication number
- CN2283255Y CN2283255Y CN 95250440 CN95250440U CN2283255Y CN 2283255 Y CN2283255 Y CN 2283255Y CN 95250440 CN95250440 CN 95250440 CN 95250440 U CN95250440 U CN 95250440U CN 2283255 Y CN2283255 Y CN 2283255Y
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- China
- Prior art keywords
- cold
- flow
- detecting device
- temperature detecting
- hot
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- 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.)
- Expired - Fee Related
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- Measuring Temperature Or Quantity Of Heat (AREA)
- Testing Or Calibration Of Command Recording Devices (AREA)
Abstract
The utility model relates to a transfer coefficient on line measuring instrument specially used for cold exchange equipment, mainly composed of a detection system and a computer system. The detection system is composed of a cold flow inlet temperature detector t 1 of cold exchange equipment, a cold flow outlet temperature detector t 2, a heat flow inlet temperature detector T1, a heat flow outlet temperature detector T2, and a flow signal converter 2; the flow signal is from cold flow or heat flow of an externally matched flow meter. The temperature detector t 1, t 2, T1, and T2 are connected with an explosion protection safety fence 3 by a temperature transmitter 1. The flow signal converter 2 in the detection system and the explosion protection safety fence 3 are connected with one end of an analog to digital converter 4, and the other end of the analog to digital converter 4 is connected with a host machine 5 of the computer system. The host machine 5 is respectively connected with a display 6, a printer 7, a keyboard 8, and a function expanded system 9. A power supply system 10 is a chargeable power supply with dual purpose of alternating current and direct current. The power supply system 10 is respectively connected with the temperature transmitter 1, the host machine 5, and the printer 7.
Description
The utility model belongs to thermal measurement instrument field, be a kind of any parts, pipeline that does not need to tear open process units specifically, can under the situation of breaks in production technological process not, finish the cold exchange device heat transfer coefficient on-line measurement instrument that operating cold exchange device heat transfer coefficient is measured.
Before this measuring instrument contemporaneity, do not measure the instrument of cold exchange device heat transfer coefficient both at home and abroad.In case of necessity, can only be estimated according to indirect observation result and experience, time-consuming, to take a lot of work, error is very big.According to the retrieval, has only U.S. BABCOK ﹠amp abroad; WILCOX company developed a kind of determinator that is used to measure heat interchanger heat exchange surface sealing factor, and this device adopts analogue technique, and complexity is set, and equipment is huge, can only be used for the laboratory, can not satisfy the needs that industry spot is measured.
Though can finish temperature or the isoparametric measurement of flow by the existing general pick-up unit that detecting device, computing machine and display, printer are formed, all not reach the target of heat transfer property parameters such as cold exchange device heat transfer coefficient being implemented measurement.
The purpose of this utility model is a kind of applied range of design, has safety anti-explosive, the signal is far passed function, and utility appliance is complete, and is easy to use, is easy to carry about with one, and is applicable to the cold exchange device heat transfer coefficient on-line measurement instrument of multiple cold exchange device.
The utility model principle is made up of detection system, safety anti-explosive system, computer system, function extension system and power-supply system as shown in Figure 1: in the detection system, and cold flow inlet temperature detecting device t
1, cold flow outlet temperature detecting device t
2, hot-fluid inlet temperature detecting device T
1, hot-fluid outlet temperature detecting device T
2Join by temperature transmitter 1 and anti-explosion safety grid 3, flow signal converter 2 in the detection system (flow signal comes from the outer flowmeter of joining) and anti-explosion safety grid 3 join with an end of A/D converter 4, and another termination computer system host 5 of converter 4, main frame 5 is connected to display 6, printer 7, keyboard 8 and function extension system 9 again respectively, power-supply system 10 is AC/DC and chargeable power supply, joins with temperature transmitter 1, main frame 5 and printer 7 respectively.
Import the relevant constant of cold exchange device to be measured by keyboard, cold flow or hot-fluid physical parameter, with above temperature, flow measurements and each ginseng, constant value overall treatment, the mathematical model computing by software set obtains relevant parameter values such as heat transfer coefficient through this instrument computer system.
The utility model is compared with existing apparatus, technology, can detect, and shows, prints heat transfer coefficient, cold flow or hot-fluid flow, cold flow import and outlet temperature, hot-fluid import and the relevant constant transitivity with equipment of outlet temperature parameter etc.; In whole measuring process, do not need to tear open any parts and the pipeline of process units, can under the situation of breaks in production technological process not, finish online detection to cold exchange device in service; This device is because the employing of explosion protection system can be satisfied the requirement of explosion proof in general petrochemical industry, refinery, chemical plant; And the signal transmission is far away; Carrying convenience; The setting of function extension system more makes this measuring instrument precision height, easy and simple to handle, in case of necessity can be in exempting wherein under the situation of the detection of Several Parameters to 5 parameters such as temperature, flow, finish measurement, and can finish the measurement of the cold exchange device that undergoes phase transition in the heat exchanging process the cold exchange device heat transfer coefficient.
Fig. 1 is a principle schematic of the present utility model.
The utility model embodiment: this measuring instrument mainly is made up of detection system and computer system.Its computer system is made up of main frame, display, printer, keyboard, function extension memory etc., and computer system adopts 96 series monolithics, adapted LCD display and have the TP that turnover plate type changes mechanism of paper
UpPrinter; Detection system comes from outer cold flow or hot-fluid flow signal converter of joining flowmeter by cold exchange device cold flow inlet temperature detecting device, cold flow outlet temperature detecting device, hot-fluid inlet temperature detecting device, hot-fluid outlet temperature detecting device and signal and forms Temperature Detector t
1, t
2, T
1, T
2Adopt resistance temperature detector, A/D converter adopts 12 A/D converters.
Claims (1)
- The cold exchange device heat transfer coefficient on-line measurement instrument a kind of mainly by detection system, that computer system is formed,Its computer system includes: devices such as main frame, display, printer, keyboard, function extension memory,It is characterized in that detection system is by cold exchange device cold flow inlet temperature detecting device (t 1), cold flow outlet temperature detecting device (t 2), hot-fluid inlet temperature detecting device (T 1), hot-fluid outlet temperature detecting device (T 2) and signal come from outer cold flow or hot-fluid flow signal converter (2) of joining flowmeter and form.Cold flow inlet temperature detecting device (t 1), cold flow outlet temperature detecting device (t 2), hot-fluid inlet temperature detecting device (T 1), hot-fluid outlet temperature detecting device (T 2) join by temperature transmitter (1) and anti-explosion safety grid (3), flow signal converter (2) in the detection system and anti-explosion safety grid (3) join another termination computer system host (5) of A/D converter (4) with an end of A/D converter (4).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 95250440 CN2283255Y (en) | 1995-12-26 | 1995-12-26 | Cold equipment heat transfer coefficient on line measuring instrument |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 95250440 CN2283255Y (en) | 1995-12-26 | 1995-12-26 | Cold equipment heat transfer coefficient on line measuring instrument |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2283255Y true CN2283255Y (en) | 1998-06-03 |
Family
ID=33886570
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 95250440 Expired - Fee Related CN2283255Y (en) | 1995-12-26 | 1995-12-26 | Cold equipment heat transfer coefficient on line measuring instrument |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2283255Y (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101488013B (en) * | 2008-01-18 | 2012-04-18 | 中国石油化工股份有限公司 | Multi-channel industrial monitoring system for baseboard leakage of oil products storage tank |
-
1995
- 1995-12-26 CN CN 95250440 patent/CN2283255Y/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101488013B (en) * | 2008-01-18 | 2012-04-18 | 中国石油化工股份有限公司 | Multi-channel industrial monitoring system for baseboard leakage of oil products storage tank |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |