A regenerative heat exchange system temperature and liquid level integrated acquisition and transmission device

A liquid level acquisition and heat exchange system technology, applied in the direction of measuring devices, instruments, etc., can solve the problems of difficult control, high cost, and affecting measurement accuracy

Active Publication Date: 2021-04-27
河北省机电一体化中试基地有限公司
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  • Abstract
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  • Claims
  • Application Information

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Problems solved by technology

[0002] The regenerative heat exchange system is mainly used in the heating industry. Since there are many points for measuring temperature and liquid level, most of the temperature and liquid level transmitters are single-channel or dual-channel measurement, which not only costs a lot , and it is more difficult to control, thus affecting the measurement accuracy

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  • A regenerative heat exchange system temperature and liquid level integrated acquisition and transmission device
  • A regenerative heat exchange system temperature and liquid level integrated acquisition and transmission device

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Embodiment Construction

[0028] The specific embodiment of the present invention is described in detail below with reference to accompanying drawing:

[0029] Such as figure 1 As shown, the integrated temperature and liquid level acquisition and transmission controller 101 provided in this embodiment includes MCU102, liquid level electrode acquisition and conditioning circuit 103, DC power input unit 104, RS485 communication unit 105, 10KNTC acquisition circuit 106, three-wire serial Line expansion bus interface 107; the DC power input unit 104 adopts DC8-30V wide voltage DC power supply, which has the characteristics of wide power supply range and high applicability.

[0030] Such as figure 2As shown, a temperature and liquid level integrated acquisition and transmission device for a regenerative heat exchange system provided in this embodiment is composed of one or more integrated temperature and liquid level acquisition and transmission controllers 101. The multi-channel electrode type The liqui...

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Abstract

The invention relates to a temperature and liquid level integrated acquisition and transmission device of a heat storage heat exchange system. Wherein, the device includes a multi-channel electrode type liquid level acquisition probe, a multi-channel NTC 10K thermal resistance acquisition probe and an integrated temperature and liquid level acquisition and transmission controller. The present invention communicates with the upper computer system through the RS485 serial communication interface, and the communication protocol is the standard modbus_RTU protocol. When multiple integrated temperature and liquid level acquisition and transmission controllers need to be used in combination, the integrated temperature and liquid level acquisition and transmission controller can be used for modular cascade expansion of the transmitter through the three-wire serial expansion bus , thereby reducing the number of nodes mounted on the RS485 serial bus and increasing the acquisition rate. The electrode-type liquid level acquisition probe adopts the n+1 acquisition working mode, so as to avoid the failure of the common electrode in the traditional sense and lead to the paralysis of the entire liquid level electrode detection system.

Description

technical field [0001] The invention relates to a temperature and liquid level acquisition and transmission device, in particular to an integrated temperature and liquid level acquisition and transmission device for a regenerative heat exchange system. Background technique [0002] The regenerative heat exchange system is mainly used in the heating industry. Since there are many points for measuring temperature and liquid level, most of the temperature and liquid level transmitters are single-channel or dual-channel measurement, which not only costs a lot , and it is more difficult to control, thus affecting the measurement accuracy. Contents of the invention [0003] The purpose of the present invention is to solve the problem of many temperature and liquid level measurement points in the regenerative system, and to provide a temperature and liquid level integrated acquisition and transmission device for the regenerative heat exchange system, which can ensure that one acq...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G01D21/02
CPCG01D21/02
Inventor 贾英新高林鹤靳晔秦亚敏庞增拴王勇
Owner 河北省机电一体化中试基地有限公司
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