CN209785225U - Heat exchanger operation condition on-line monitoring alarm device - Google Patents
Heat exchanger operation condition on-line monitoring alarm device Download PDFInfo
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- CN209785225U CN209785225U CN201920445109.4U CN201920445109U CN209785225U CN 209785225 U CN209785225 U CN 209785225U CN 201920445109 U CN201920445109 U CN 201920445109U CN 209785225 U CN209785225 U CN 209785225U
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Abstract
the utility model relates to a heat exchanger operation conditions on-line monitoring alarm device, include: the heat exchanger comprises a control system, a sensor, a data acquisition module, a communication module, a touch display screen, a circuit on-off controller and an alarm, wherein the sensor is arranged at an inlet and an outlet of the heat exchanger; the data acquisition module is connected with the sensor, and the communication module is respectively connected with the data acquisition module and the control system; the touch display screen is connected with the control system; the alarm is connected with the control system through the circuit on-off controller and is used for alarming abnormal data. The utility model discloses a monitoring and calculating each state parameter such as heat exchanger operation in-process temperature, pressure, flow and flow difference, can carry out online diagnosis and unusual audible-visual alarm to the heat exchanger operation conditions, have fine practical value.
Description
Technical Field
The utility model belongs to pressure-bearing type special equipment field especially relates to the testing arrangement of heat exchanger safe and reliable operation, concretely relates to heat exchanger operation conditions on-line monitoring alarm device.
background
The heat exchanger is a device for transferring heat of hot fluid to cold fluid, and is used as an energy exchange type special device which is widely applied to petroleum, chemical engineering, metallurgy, electric power and other high energy consumption industries in the forms of a cooler, a condenser, an evaporator, a reboiler and the like, and the investment of the heat exchanger in chemical production and petroleum processing technology is even more than one third of the total investment. The heat exchanger is an effective device for energy conservation and energy recycling, and the energy consumption of a single product in the production process is directly influenced by the heat exchange efficiency of the heat exchanger. Under the global large background of energy conservation and emission reduction, the development concepts of safety and economy and safety and resource conservation are gradually becoming consensus. The operating efficiency and the production quality of the whole production chain are directly influenced by the operating state of the heat exchanger. After the heat exchanger is operated for a long time, phenomena such as pressure drop increase, medium internal leakage, scaling and the like often occur, and the use efficiency of the heat exchanger is reduced due to the occurrence of the phenomena. Especially for a production system with high temperature or pressure requirements, the abnormal operation condition of the heat exchanger even influences the safe and normal operation of the system, and economic loss is caused. The monitoring of the operating conditions of the heat exchangers is therefore a non-negligible step. The traditional online monitoring means is mainly used for judging the state of the system by observing data of a single pressure sensor, a single temperature sensor or a single flow sensor through an instrument by an operator, and various instruments are usually physical instruments instead of electronic instruments, so that a user is difficult to monitor the running condition of the heat exchanger on line from the system level, and the situation is often serious when a problem occurs.
SUMMERY OF THE UTILITY MODEL
The utility model discloses to the not enough of current heat exchanger operation condition diagnostic method and technique, provide a heat exchanger operation condition on-line monitoring alarm device, through monitoring and calculate each state parameter such as heat exchanger operation in-process temperature, pressure, flow and flow difference, can carry out on-line diagnosis and unusual audible-visual alarm to heat exchanger operation condition, have fine practical value.
In order to solve the technical problem, the utility model discloses the technical scheme who takes does:
The utility model provides a heat exchanger operating condition on-line monitoring alarm device, includes: a control system, a sensor, a data acquisition module, a communication module, a touch display screen, a circuit on-off controller and an alarm, wherein,
The sensors are arranged at the inlet and the outlet of the heat exchanger and used for detecting the physical parameter data of the fluid at the inlet and the outlet;
The data acquisition module is connected with the sensor, the communication module is respectively connected with the data acquisition module and the control system, and the acquired physical parameter data of the fluid is sent to the control system;
The touch display screen is connected with the control system and is used for setting the threshold range of the fluid physical parameter data in the control system;
The control system is used for comparing the set threshold range with the acquired fluid physical parameter data and judging whether the data are abnormal or not;
the alarm is connected with the control system through the circuit on-off controller and is used for alarming abnormal data.
Further, the fluid physical parameters mainly include: temperature, pressure and flow rate.
Further, the method also comprises the following steps: the device comprises a data storage medium, an alarm indicating lamp set and an external switch key set, wherein the data storage medium is connected with the control system and used for storing fluid physical parameter data acquired by the control system, the alarm indicating lamp set is connected with the circuit on-off controller, and the external switch key set is connected with the control system.
Further, the method also comprises the following steps: the device comprises a device main body, wherein the control system, a circuit on-off controller, a communication module and a data storage medium are arranged in the device main body; a power socket is arranged on the device main body; the alarm is arranged at the top of the device main body; the lower end of the device main body is provided with a supporting leg; the device main part is provided with an operation panel, and the operation panel is provided with the touch display screen, the alarm indicating lamp group and the external switch key group.
Further, the external switch key group includes: the alarm switch keys corresponding to the physical parameters of each fluid are used for controlling the on-off of the alarm state; the warning indicator light group includes: alarm indicator lamps corresponding to the physical parameters of each fluid.
Furthermore, the communication module is connected with the data acquisition module in a wireless signal mode.
compared with the prior art, the beneficial effects of the utility model reside in that:
1) The utility model adopts a plurality of electronic sensors, can simultaneously carry out on-line monitoring and visual screen display on a plurality of physical parameters of temperature, pressure and flow at the inlet and the outlet of the heat exchanger, does not need a user to watch the reading of an instrument on the heat exchanger site, and reduces the labor intensity;
2) The utility model discloses the upper and lower limit threshold value scope of parameter alarm can be set up artificially, can automatic audible and visual alarm when the heat exchanger operates unusually, discover hidden danger in time, compare with traditional artifical incessant detection mode, the device is favorable to maintaining the stability of technological parameters such as temperature, pressure in the production process, and is favorable to improving the treatment effeciency of emergent situation;
3) The utility model discloses except that the multi-parameter that possesses temperature, pressure and flow detects, still have leak detection and leakage alarming function, whether the flow difference of accessible flow inlet outlet end judges to take place to leak.
Drawings
Fig. 1 is the structure block diagram of the on-line monitoring alarm device of the utility model.
Fig. 2 is the utility model discloses an on-line monitoring alarm device stereogram.
fig. 3 is the structure schematic diagram of the operation panel of the on-line monitoring alarm device of the utility model.
fig. 4 is a flow chart of the operation of the temperature monitoring alarm according to an embodiment of the present invention.
Fig. 5 is a flow chart of the operation of the leakage monitoring alarm according to an embodiment of the present invention.
in the above figures: 1-device body, 2-alarm, 3-power socket, 4-operation panel, 5-support leg, 6-touch display screen, 21-temperature alarm switch button, 22-pressure alarm switch button, 23-flow alarm switch button, 24-alarm main switch button, 25-power switch button, 26-leakage alarm switch button, 31-temperature alarm indicator lamp, 32-pressure alarm indicator lamp, 33-flow alarm indicator lamp, 34-power supply indicator lamp, 35-leakage alarm indicator lamp, 36-heat exchanger, 37-hot fluid inlet, 38-hot fluid outlet, 39-cold fluid inlet, and 40-cold fluid outlet.
Detailed Description
In order to make the technical solutions of the present invention better understood by those skilled in the art, the present invention will be further described in detail with reference to the following specific embodiments. The following description of the embodiments is merely exemplary in nature and is in no way intended to limit the invention. The examples, where specific techniques or conditions are not indicated, are to be construed according to the techniques or conditions described in the literature in the art or according to the product specifications.
According to the utility model discloses an embodiment, the utility model provides a heat exchanger operation conditions on-line monitoring alarm device, fig. 1 does the utility model discloses on-line monitoring alarm device structure block diagram, as shown in fig. 1, mainly includes: the system comprises a control system, a sensor, a wireless data acquisition module, a wireless communication module, a touch display screen, a circuit on-off controller, an alarm, a data storage medium, an alarm indicating lamp group and an external switch key group.
As known in the art, the heat exchanger mainly includes: hot-fluid import, hot-fluid export, cold fluid import and cold fluid export, fig. 3 is the utility model discloses on-line monitoring alarm device operating panel schematic structure, as shown in fig. 3, consequently hot-fluid import, hot-fluid export, cold fluid import and cold fluid export are equipped with respectively the sensor, the sensor is electronic type sensor, can externally transmit the signal of telecommunication, including temperature sensor, pressure sensor and flowmeter for detect the fluid physical parameter data of above-mentioned inlet outlet department respectively: temperature, pressure and flow rate. It can be understood that, in order to improve the accuracy of data, the sensor quantity that sets up in every entry and exit department can be a plurality of, the utility model discloses a make technical scheme of the utility model understand better for the technical personnel in the field, on-line monitoring alarm device preferably includes: the four temperature sensors, the four pressure sensors and the four flow meters are respectively arranged at the four inlet and outlet openings, namely, the four temperature sensors are respectively used for detecting the temperatures of the hot fluid and the cold fluid of the heat exchanger at the inlet and outlet openings, the four pressure sensors are respectively used for detecting the pressures of the hot fluid and the cold fluid of the heat exchanger at the inlet and outlet openings, and the four flow meters are respectively used for detecting the flow rates of the hot fluid and the cold fluid flowing into and out of the inlet and outlet openings of the heat exchanger.
According to the utility model discloses an embodiment, wireless data acquisition module install on the heat exchanger and with the sensor links to each other for on-line acquisition sensor data. The wireless communication module is connected with the wireless data acquisition module in a wireless signal mode, and is connected with the control system in an RS485 signal mode, and the wireless communication module is used for transmitting sensor data acquired by the wireless data acquisition module, namely fluid physical parameter data to be acquired to the control system.
According to the utility model discloses an embodiment, touch display screen with control system links to each other for through text or curve mode on-line display heat exchanger each position temperature, pressure and flow parameter, user's accessible touch display screen input sets for the upper and lower limit threshold value scope of each sensor monitoring fluid physical parameter and the flow difference threshold value scope of leakage warning in addition, and with each threshold value data transmission to control system in, supply control system to calculate.
According to the embodiment of the utility model, control system is preferred PLC, PLC can carry out the analysis to the sensor data that obtains on line, compares through the difference threshold value scope of the temperature, pressure and the upper and lower limit threshold value scope of flow and the flow of leaking of setting for with the user input, judges whether each position temperature of heat exchanger, pressure and flow are unusual, calculates the inlet outlet department flow difference of hot-fluid and cold-fluid to compare with the difference threshold value of flow, judge whether the heat exchanger takes place to leak. And when the PLC judges that the parameters of the heat exchanger are abnormal, the PLC outputs a switching value signal to the circuit on-off controller, and the circuit on-off controller controls the on-off of the alarm indicator lamp and the alarm so as to realize abnormal operation alarm of the heat exchanger. According to some embodiments of the present invention, the circuit on-off controller is preferably a relay.
According to the embodiment of the utility model, data storage media is connected with PLC for each parameter of heat exchanger that acquires PLC is saved, and the user of being convenient for draws data and further analysis, and data storage media can be USB flash disk, SD card or other storage media.
According to the embodiment of the utility model, fig. 2 does the utility model discloses on-line monitoring alarm device stereogram, it is shown with reference to fig. 2, heat exchanger operation conditions on-line monitoring alarm device still includes: the device comprises a device main body, wherein a PLC, a relay, a wireless communication module and a data storage medium are arranged in the device main body; the device main body is provided with a power socket which is used for connecting an external power supply and supplying power to the online monitoring alarm device; the alarm is arranged at the top of the device main body, and when the parameters of the heat exchanger are abnormal, the alarm sends out sound and light alarm signals; in order to facilitate the operation, the lower end of the device main body is provided with a supporting leg. The device main body is provided with an operation panel for user operation.
According to the embodiment of the utility model, it is shown with reference to fig. 3, be equipped with on the operating panel touch display screen, alarm indicator banks and external switch press the key group, and more specifically, the last heat exchanger model picture that shows of touch display screen and mark out the position of each sensor on the heat exchanger, like pressure sensor (P), flowmeter (V) and temperature sensor (T).
The alarm indication lamp set is connected with the relay and used for alarm indication, and as shown in fig. 3, the alarm indication lamp set specifically includes: temperature alarm indicator light, pressure alarm indicator light, flow alarm indicator light, leak alarm indicator light. The utility model discloses still include: and the power supply indicator lamp is used for power supply indication. The external switch button group is connected with the control system, and specifically comprises: alarm main switch key, temperature alarm switch key, pressure alarm switch key, flow alarm switch key and leakage alarm indicator lamp. The utility model discloses still include: the power supply key and the power supply key are used for starting and closing the device, and the power supply indicator lamp is turned on after the power supply key is pressed down to turn on the online monitoring alarm device to indicate that the current device is in an operating state.
According to the utility model discloses an embodiment, above-mentioned warning indicator banks and external switch press the key group specific theory of operation as follows.
(1) when the PLC monitors that the temperatures of 4 parts at the inlet and the outlet of the heat exchanger in the hot flow and the cold flow are higher than the upper temperature limit threshold or lower than the lower temperature limit threshold, the temperature alarm indicator lamp is turned on, and meanwhile, the alarm gives out audible and visual alarm. When the device is started, the temperature monitoring alarm function is defaulted to an open state, the temperature monitoring alarm function can be stopped by pressing the temperature alarm switch key in the use process, the temperature alarm indicator lamp is turned off and cannot be used for temperature abnormity alarm, when the temperature monitoring alarm function is stopped, the temperature alarm switch key is pressed to start the temperature monitoring alarm function, and the temperature alarm indicator lamp can be used for temperature abnormity alarm again.
(2) When the PLC monitors that fluid pressure exists in 4 positions of the respective inlet and outlet of the heat exchanger in the hot flow and the cold flow, the pressure alarm indicator lamp is turned on, and the alarm gives out audible and visual alarm. When the device is started, the pressure monitoring alarm function is in an on state by default, the pressure monitoring alarm function can be stopped by pressing the pressure alarm switch key in the using process, the pressure alarm indicator lamp is turned off and cannot be used for pressure abnormity alarm, when the pressure monitoring alarm function is stopped, the pressure alarm switch key is pressed to start the pressure monitoring alarm function, and the pressure alarm indicator lamp can be used for pressure abnormity alarm again.
(3) When the PLC monitors that the flow values of 4 parts at the inlet and the outlet of the heat exchanger in the hot flow and the cold flow are larger than the upper flow limit threshold or smaller than the lower flow limit threshold, the flow alarm indicator lamp is turned on, and meanwhile, the alarm gives out audible and visual alarm. When the device is started, the flow monitoring alarm function is defaulted to be in an open state, the flow monitoring alarm function can be stopped by pressing the flow alarm switch key in the use process, the flow alarm indicator lamp is turned off and cannot be used for abnormal flow alarm, when the flow monitoring alarm function is stopped, the flow alarm switch key is pressed to start the flow monitoring alarm function, and the flow alarm indicator lamp can be used for abnormal flow alarm.
(4) when the PLC monitors that the heat exchanger has leakage in the hot flow or the cold flow, the leakage alarm indicator lamp is turned on, and meanwhile the alarm gives out audible and visual alarm. When the device is started, the leakage monitoring alarm function is defaulted to be in an open state, the leakage monitoring alarm function can be stopped by always pressing the leakage alarm switch key in the using process, the leakage alarm indicator lamp is turned off and cannot be used for leakage abnormity alarm, when the leakage monitoring alarm function is stopped, the leakage monitoring alarm function can be started by pressing the leakage alarm switch key, and the leakage alarm indicator lamp can be used for leakage abnormity alarm.
(5) The alarm main switch key is used for starting and closing all the temperature, pressure, flow and leakage on-line monitoring alarm functions. When the device is started, all monitoring alarm functions are acquiescently recognized as an open state, and after an alarm main switch key is pressed, a temperature alarm indicator lamp, a pressure alarm indicator lamp, a flow alarm indicator lamp, a leakage alarm indicator lamp and the alarm in the figure 2 cannot be used for abnormal alarm. After all the on-line monitoring alarm functions are closed, the alarm main switch key is pressed again to turn on all the on-line monitoring alarm functions of temperature, pressure, flow and leakage.
The utility model discloses a further aspect provides a heat exchanger operation conditions on-line monitoring alarm device's on-line monitoring alarm method according to preceding, mainly includes following step.
(1) The sensor detects fluid physical parameter data at the inlet and the outlet of the heat exchanger, and mainly comprises: temperature, pressure and flow rate;
(2) the data acquisition module transmits the acquired fluid physical parameter data to the control system through the communication module;
(3) The control system compares the acquired fluid physical parameter data with a set threshold range of the fluid physical parameter data, and judges whether the data is abnormal: when the acquired fluid physical parameter data is within the threshold range, the acquired fluid physical parameter data is normal, otherwise, the acquired fluid physical parameter data is abnormal;
(4) When the circuit is abnormal, the control system sends a trigger signal to the circuit on-off controller to control the alarm to give an alarm.
according to the utility model discloses an embodiment, the utility model discloses will specifically carry out following detailed description to the process that temperature parameter detected the warning, fig. 4 does the utility model discloses a temperature monitoring warning operation flow chart of an embodiment, it is shown with reference to fig. 4, after the beginning temperature monitoring, PLC reads hot-fluid inlet temperature T1, hot-fluid outlet temperature T2, cold fluid inlet temperature T3 and cold fluid outlet temperature T4 that four temperature sensor gathered. And then comparing the T1 with a set upper temperature limit threshold TH1 and a lower temperature limit threshold TL1 of the hot fluid inlet, if the current T1 is greater than TH1 or T1 is less than TL1, determining that the hot fluid inlet temperature T1 is abnormal, controlling by a PLC to turn on a temperature alarm indicator lamp, and if the T1 is in the range of TH1 and TL1, continuously judging the hot fluid outlet temperature T2. And sequentially judging whether the temperatures of T2, T3 and T4 are abnormal or not according to the method, if the temperatures of T1, T2, T3 and T4 are normal, controlling the temperature alarm indicator lamp to be in a closed state by the PLC, and if at least one temperature is abnormal, controlling the temperature alarm indicator lamp to be in an open state by the PLC to remind a user that the heat exchanger is in an abnormal temperature state. And the PLC then judges whether the temperature monitoring alarm function is in an opening state, if so, the PLC continues to monitor the temperature of the T1, the T2, the T3 and the T4 in the next period, otherwise, the PLC closes the temperature alarm indicator lamp and ends the temperature monitoring process. It should be understood that fig. 4 is only an example of a sequence, and the above process does not include the sequence of determining the abnormality of T1, T2, T3 and T4. The upper temperature thresholds TH1, TH2, TH3 and TH4 and the lower temperature thresholds TL1, TL2, TL3 and TL4 can be edited by the user through the touch display screen shown in fig. 1 and 2 and then stored in the PLC.
It can be understood that the utility model discloses the same method of above-mentioned temperature monitoring warning is also adopted in pressure monitoring warning and flow monitoring warning, and is no longer repeated here.
According to the utility model discloses an embodiment, the utility model discloses will specifically carry out following detailed description to the process of leak detection warning, fig. 5 does the utility model discloses a leak detection warning operation flow chart of an embodiment, refer to fig. 5 and show, after beginning leak detection, PLC reads hot-fluid inlet flow V1, hot-fluid outlet flow V2, cold-fluid inlet flow V3 and cold-fluid outlet flow V4 that four flowmeters gathered, calculate the difference V1-V2 of V1 and V2 afterwards, if this difference is greater than the flow difference threshold VL1 of the hot-fluid leakage of settlement, then think that the hot-fluid has the leakage, PLC control is opened and is leaked the warning pilot lamp. And calculating a difference value V3-V4 between V3 and V4, and if the difference value is larger than a set flow difference threshold VL2 of cold fluid leakage, determining that leakage exists in the cold flow, and controlling a leakage alarm indicator lamp to be turned on by the PLC. And if the leakage monitoring of the hot process and the cold process is normal, the leakage alarm indicator lamp is turned off. And then judging whether the leakage monitoring alarm function is in an open state, if so, continuing to perform leakage monitoring on the hot flow and the cold flow of the next period, otherwise, closing a leakage alarm indicator lamp, and ending the leakage monitoring process. It should be understood that fig. 5 is only a sequential embodiment, and the above-mentioned process does not have any sequence for determining the abnormal leakage of the hot process and the cold process. The flow difference thresholds VL1 and VL2 for hot and cold process leaks may be edited by the user via the touch screen display of fig. 1 and 2 and stored in the PLC.
when all monitoring alarm functions are in an on state, the alarm is in an on sound and light alarm state as long as at least one of the four monitoring parameters of temperature, pressure, flow and leakage of the heat exchanger is abnormal, and the alarm is in an off sound and light alarm state if all the four monitoring parameters of temperature, pressure, flow and leakage of the heat exchanger are in normal operation.
to sum up, the utility model adopts a plurality of electronic sensors, can simultaneously carry out on-line monitoring and visual screen display on a plurality of physical parameters of temperature, pressure and flow at the inlet and outlet of the heat exchanger, does not need a user to watch the reading of the instrument on the spot of the heat exchanger, and reduces the labor intensity; the utility model discloses the upper and lower limit threshold value scope of parameter alarm can be set up artificially, can automatic audible and visual alarm when the heat exchanger operates unusually, discover hidden danger in time, compare with traditional artifical incessant detection mode, the device is favorable to maintaining the stability of technological parameters such as temperature, pressure in the production process, and is favorable to improving the treatment effeciency of emergent situation; the utility model discloses except that the multi-parameter that possesses temperature, pressure and flow detects, still have leak detection and leakage alarming function, whether the flow difference of accessible flow inlet outlet end judges to take place to leak.
In the present invention, unless otherwise expressly stated or limited, the terms "connected" and "connecting" are to be construed broadly, e.g., as meaning a fixed connection, a removable connection, or an integral part; can be mechanically or electrically connected; either directly or indirectly through intervening media, either internally or in any other relationship. The specific meaning of the above terms in the present invention can be understood according to specific situations by those skilled in the art.
In the description herein, references to the description of the terms "one embodiment," "some embodiments," "an embodiment," etc., mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, the schematic representations of the terms used above are not necessarily intended to refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples. Furthermore, various embodiments or examples and features of different embodiments or examples described in this specification can be combined and combined by one skilled in the art without contradiction.
Although embodiments of the present invention have been shown and described, it is understood that the above embodiments are exemplary and should not be construed as limiting the present invention, and that various changes, modifications, substitutions and alterations can be made in the above embodiments by those skilled in the art without departing from the scope of the present invention, and that various changes in the detailed description and applications can be made by those skilled in the art without departing from the spirit of the present invention.
Claims (6)
1. The utility model provides a heat exchanger operation condition on-line monitoring alarm device which characterized in that includes: a control system, a sensor, a data acquisition module, a communication module, a touch display screen, a circuit on-off controller and an alarm, wherein,
The sensors are arranged at the inlet and the outlet of the heat exchanger and used for detecting the physical parameter data of the fluid at the inlet and the outlet;
The data acquisition module is connected with the sensor, the communication module is respectively connected with the data acquisition module and the control system, and the acquired physical parameter data of the fluid is sent to the control system;
The touch display screen is connected with the control system and is used for setting the threshold range of the fluid physical parameter data in the control system;
the control system is used for comparing the set threshold range with the acquired fluid physical parameter data and judging whether the data are abnormal or not;
the alarm is connected with the control system through the circuit on-off controller and is used for alarming abnormal data.
2. The on-line monitoring and alarming device for the operating condition of the heat exchanger as recited in claim 1, wherein the physical parameters of the fluid mainly comprise: temperature, pressure and flow rate.
3. The on-line monitoring and alarming device for the operating condition of the heat exchanger as recited in claim 1 or 2, further comprising: the device comprises a data storage medium, an alarm indicating lamp set and an external switch key set, wherein the data storage medium is connected with the control system and used for storing fluid physical parameter data acquired by the control system, the alarm indicating lamp set is connected with the circuit on-off controller, and the external switch key set is connected with the control system.
4. The on-line monitoring and alarming device for the operating condition of the heat exchanger as recited in claim 3, further comprising: the device comprises a device main body, wherein the control system, a circuit on-off controller, a communication module and a data storage medium are arranged in the device main body; a power socket is arranged on the device main body; the alarm is arranged at the top of the device main body; the lower end of the device main body is provided with a supporting leg; the device main part is provided with an operation panel, and the operation panel is provided with the touch display screen, the alarm indicating lamp group and the external switch key group.
5. The on-line monitoring and alarming device for the operating condition of the heat exchanger as recited in claim 3, wherein the external switch key group comprises: the alarm switch keys corresponding to the physical parameters of each fluid are used for controlling the on-off of the alarm state; the warning indicator light group includes: alarm indicator lamps corresponding to the physical parameters of each fluid.
6. the on-line monitoring and alarming device for the operating condition of the heat exchanger as recited in claim 1, wherein the communication module is connected with the data acquisition module in a wireless signal mode.
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| CN201920445109.4U CN209785225U (en) | 2019-04-03 | 2019-04-03 | Heat exchanger operation condition on-line monitoring alarm device |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN110009876A (en) * | 2019-04-03 | 2019-07-12 | 广东省特种设备检测研究院珠海检测院 | A kind of heat exchanger operation conditions online monitoring alarm device and method |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110009876A (en) * | 2019-04-03 | 2019-07-12 | 广东省特种设备检测研究院珠海检测院 | A kind of heat exchanger operation conditions online monitoring alarm device and method |
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Assignee: ZHUHAI ANYES TECHNOLOGY Co.,Ltd. Assignor: GUANGDONG INSPECTION AND Research Institute OF SPECIAL EQUIPMENT ZHUHAI INSPECTION INSTITUTE Contract record no.: X2021980017429 Denomination of utility model: An on-line monitoring and alarm device for operating condition of heat exchanger Granted publication date: 20191213 License type: Common License Record date: 20220111 |