Plate exchange efficiency on-line detection device

Abstract

The utility model discloses a plate heat exchange efficiency online detection device, and belongs to the technical field of heat supply. In order to rapidly and accurately measure the efficiency of the plate replacement, the device comprises a box body which is provided with a touch screen. A first circuit breaker, a second circuit breaker, a third circuit breaker, a 24V power supply, a positive wiring terminal, a negative wiring terminal, an edge computing controller, remote transmission equipment, a first frequency converter, a second frequency converter, a first relay and a second relay are arranged in the box body; a temperature sensor, a pressure sensor, a regulating valve, a heat sensor, a circulating pump and a make-up pump are installed on a pipeline, the operation condition of the system is monitored in real time, an edge calculation controller in an edge calculation control box collects data of the temperature, the pressure, a heat meter, the regulating valve, the circulating pump and the make-up pump of the pipeline, and calculation and judgment are conducted after the collected data are completed. According to the utility model, the monitoring and analysis of the plate heat exchange efficiency in the heat exchange process are realized.

Description

Technical Field

[0001] The utility model belongs to the technical field of heating, and in particular relates to an online detection device for plate exchange efficiency. Background Art

[0002] A plate heat exchanger is a heat exchange device that transfers heat energy from one fluid to another by exchanging heat between adjacent heat exchange plates. This device consists of a stack of metal plates with small gaps between the plates, allowing two different fluids to flow between the plates for heat exchange. Plate heat exchangers are ideal equipment for liquid-liquid and liquid-steam heat exchange. It has high heat exchange efficiency, low heat loss, compact and lightweight structure, small footprint, and is widely used in heating, air conditioning and refrigeration industries. Plate heat exchangers are the main equipment of thermal power stations, and the operating status of plate heat exchangers directly affects the heat exchange efficiency of the entire system. After long-term operation, the heat exchange station will experience increased pressure drop and scaling on the surface of the heat exchanger plates, affecting the heat exchange efficiency. The heat exchange efficiency will affect the safety and operation of the overall system, and it is difficult to meet the user's needs. Since most plate heat exchangers lack heat exchange efficiency detection devices, it is impossible to monitor and analyze the efficiency of the plate heat exchanger in real time. As a result, most operators of heat companies do not pay much attention to the efficiency of the plate heat exchanger, but only pay attention to the temperature of the plate heat exchanger, such as the water supply temperature of the first network, the return water temperature of the first network, the water supply temperature of the second network, and the return water temperature of the second network. When the user's temperature does not meet the standard, the operator of the heat exchange station does not analyze the efficiency of the plate heat exchanger, but only knows to increase the flow of the first network to increase the temperature of the second network. Increasing the flow of the first network can solve the problem of the user's lack of heat, but it is possible that the flow of the first network can meet the current demand. The reason why the user is not hot is the low efficiency of the plate heat exchanger. The total flow is certain. When the flow of the current system is increased, the flow of other systems will inevitably be reduced, which will lead to a reduction in the flow of other systems and affect the operation of other systems. Some operators may calculate the efficiency of the plate heat exchanger based on experience and other auxiliary equipment, which will also lead to the failure to discover the low efficiency of the plate heat exchanger in a timely manner and deviation in the calculation results. Summary of the invention

[0003] The utility model provides an online detection device for plate exchange efficiency in order to quickly and accurately measure the efficiency of a plate exchanger.

[0004] To achieve the above purpose, the utility model is implemented through the following technical solutions:

[0005] A plate conversion efficiency online detection device comprises a box body, a touch screen is installed on the box body, and a first circuit breaker, a second circuit breaker, a third circuit breaker, a 24V power supply, a positive wiring terminal, a negative wiring terminal, an edge computing controller, a remote transmission device, a first frequency converter, a second frequency converter, a first relay, and a second relay are arranged in the box body;

[0006] One end of the first circuit breaker is connected to the mains, and the other end of the first circuit breaker is connected to a 24V power supply, and the 24V power supply is respectively connected to a positive wiring terminal and a negative wiring terminal; the positive wiring terminal is respectively connected to an edge computing controller and a touch screen, and the negative wiring terminal is respectively connected to an edge computing controller and a touch screen, and the touch screen is respectively connected to a remote transmission device and an edge computing controller;

[0007] One end of the second circuit breaker is connected to the mains, and the other end of the second circuit breaker is connected to the first frequency converter;

[0008] One end of the third circuit breaker is connected to the mains, and the other end of the third circuit breaker is connected to the second frequency converter;

[0009] The edge computing controller is also connected to the first relay and the second relay respectively.

[0010] Furthermore, a primary network water supply pressure transmitter, a primary network water supply temperature transmitter, and a primary network heat meter are installed on the primary network water supply pipe of the plate heat exchanger; a primary network return water pressure transmitter, a primary network return water temperature transmitter, and a regulating valve are installed on the primary network return water pipe of the plate heat exchanger; a secondary network water supply pressure transmitter, a secondary network water supply temperature transmitter, and a secondary network heat meter are installed on the secondary network water supply pipe of the plate heat exchanger; a secondary network return water pressure transmitter, a secondary network return water temperature transmitter, a circulation pump, a make-up water pump, and a make-up water flow meter are installed on the secondary network return water pipe of the plate heat exchanger.

[0011] Furthermore, the first frequency converter is connected to a circulation pump, and the second frequency converter is connected to a water supply pump.

[0012] Furthermore, the water replenishment flow meter is connected to a water tank.

[0013] Furthermore, the edge computing controller is respectively connected to the primary network water supply pressure transmitter, the primary network water supply temperature transmitter, the primary network heat meter, the primary network return water pressure transmitter, the primary network return water temperature transmitter, the regulating valve, the secondary network water supply pressure transmitter, the secondary network water supply temperature transmitter, the secondary network heat meter, the secondary network return water pressure transmitter, the secondary network return water temperature transmitter, the circulation pump, the make-up water pump, and the make-up water flow meter through signal cables.

[0014] Furthermore, the remote transmission device (1-9) is a 4G router.

[0015] The beneficial effects of the utility model are:

[0016] The utility model discloses an online detection device for plate heat exchange efficiency. A temperature sensor, a pressure sensor, a regulating valve, a heat sensor, a circulation pump, and a water supply pump are installed on the pipeline to monitor the operation of the system in real time. The edge computing controller in the edge computing control box collects data on the pipeline temperature, pressure, heat meter, regulating valve, circulation pump, and water supply pump, and performs calculation and judgment after the data is collected. The 24V power supply provides power for the pressure transmitter, temperature transmitter, heat meter, flow meter, edge computing controller, and touch screen. The frequency converter controls the circulation pump and the water supply pump. The edge computing controller controls the frequency converter through a relay. The touch screen displays the results of the edge computing controller's collection and calculation in the form of graphics, tables, and curves. The operation of the plate heat exchanger is analyzed through the intelligent edge computing control box, and the efficiency of the plate heat exchange is detected and calculated in real time. When the system has phenomena such as increased pressure drop and structure, resulting in low plate exchange efficiency, the system will alarm and prompt the operation management personnel.

[0017] The utility model discloses an on-line detection device for plate exchange efficiency, which can realize remote monitoring of the temperature, pressure, heat, regulating valve, circulation pump and water supply pump of the pipe network.

[0018] The utility model discloses an on-line detection device for plate exchange efficiency, which analyzes the collected pressure, temperature and heat, and realizes the monitoring and analysis of the plate exchange efficiency during the heat exchange process, thereby avoiding the operating personnel from affecting the safe and stable operation of the heat exchange system due to not knowing the operating efficiency of the plate exchange during operation and maintenance.

[0019] The utility model discloses an online detection device for plate exchange efficiency, which can transmit the collected and calculated data to a remote control platform in real time through communication methods such as Ethernet, NB, 4G, and wireless. Management and operation personnel can remotely monitor the operation data of the plate exchanger. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 This is a schematic diagram of the box structure of a plate exchange efficiency online detection device described in the utility model;

[0021] Figure 2 It is a schematic diagram of the internal circuit connection relationship of a plate exchange efficiency online detection device described in the utility model;

[0022] Figure 3 A schematic diagram of the connection relationship of a plate exchange structure connected to an online detection device for plate exchange efficiency according to the utility model;

[0023] Figure 4 Schematic diagram of the local connection relationship of the edge computing controller described in the utility model Figure 1 ;

[0024] Figure 5Schematic diagram of the local connection relationship of the edge computing controller described in the utility model Figure 2 ;

[0025] Figure 6 Schematic diagram of the local connection relationship of the edge computing controller described in the utility model Figure 3 . DETAILED DESCRIPTION

[0026] Exemplary embodiments of the present invention will be described below in conjunction with the accompanying drawings. For the sake of clarity and conciseness, not all features of the actual implementation are described in the specification. However, it should be understood that many implementation-specific decisions must be made in the process of developing any such actual implementation in order to achieve the specific goals of the developer, for example, to meet those constraints related to the system and business, and these constraints may vary from implementation to implementation. In addition, it should be understood that although the development work may be very complex and time-consuming, for those skilled in the art who benefit from the disclosure of the present utility model, such development work is merely a routine task.

[0027] It is also necessary to explain here that, in order to avoid obscuring the present invention due to unnecessary details, only the device structure and / or processing steps closely related to the scheme according to the present invention are shown in the accompanying drawings, while other details that are not closely related to the present invention are omitted.

[0028] In order to further understand the content, features and functions of the utility model, the following specific implementation methods are given as examples, and the attached Figure 1 -Attached Figure 6 The detailed instructions are as follows:

[0029] A plate conversion efficiency online detection device comprises a box 1, a touch screen 1-1 is installed on the box 1, and a first circuit breaker 1-2, a second circuit breaker 1-3, a third circuit breaker 1-4, a 24V power supply 1-5, a positive connection terminal 1-6, a negative connection terminal 1-7, an edge computing controller 1-8, a remote transmission device 1-9, a first frequency converter 1-10, a second frequency converter 1-11, a first relay 1-12, and a second relay 1-13 are arranged in the box 1;

[0030] One end of the first circuit breaker 1-2 is connected to the mains, and the other end of the first circuit breaker 1-2 is connected to the 24V power supply 1-5, and the 24V power supply 1-5 is respectively connected to the positive wiring terminal 1-6 and the negative wiring terminal 1-7; the positive wiring terminal 1-6 is respectively connected to the edge computing controller 1-8 and the touch screen 1-1, and the negative wiring terminal 1-7 is respectively connected to the edge computing controller 1-8 and the touch screen 1-1, and the touch screen 1-1 is respectively connected to the remote transmission device 1-9 and the edge computing controller 1-8;

[0031] One end of the second circuit breaker 1-3 is connected to the mains, and the other end of the second circuit breaker 1-3 is connected to the first frequency converter 1-10;

[0032] One end of the third circuit breaker 1-4 is connected to the mains, and the other end of the third circuit breaker 1-4 is connected to the second frequency converter 1-11;

[0033] The edge computing controller 1-8 is also connected to the first relay 1-12 and the second relay 1-13 respectively.

[0034] Furthermore, a primary network water supply pressure transmitter 15, a primary network water supply temperature transmitter 2, and a primary network heat meter 3 are installed on the primary network water supply pipe of the plate heat exchanger 16; a primary network return water pressure transmitter 4, a primary network return water temperature transmitter 5, and a regulating valve 6 are installed on the primary network return water pipe of the plate heat exchanger 16; a secondary network water supply pressure transmitter 7, a secondary network water supply temperature transmitter 8, and a secondary network heat meter 9 are installed on the secondary network water supply pipe of the plate heat exchanger 16; a secondary network return water pressure transmitter 10, a secondary network return water temperature transmitter 11, a circulating pump 12, a make-up water pump 13, and a make-up water flow meter 14 are installed on the secondary network return water pipe of the plate heat exchanger 16.

[0035] Furthermore, the first frequency converter 1 - 10 is connected to a circulation pump 12 , and the second frequency converter 1 - 11 is connected to a water supply pump 13 .

[0036] Furthermore, the water replenishment flow meter 14 is connected to the water tank 17 .

[0037] Furthermore, the edge computing controllers 1-8 are respectively connected to the primary network water supply pressure transmitter 15, the primary network water supply temperature transmitter 2, the primary network heat meter 3, the primary network return water pressure transmitter 4, the primary network return water temperature transmitter 5, the regulating valve 6, the secondary network water supply pressure transmitter 7, the secondary network water supply temperature transmitter 8, the secondary network heat meter 9, the secondary network return water pressure transmitter 10, the secondary network return water temperature transmitter 11, the circulation pump 12, the make-up water pump 13, and the make-up water flow meter 14 through signal cables.

[0038] Furthermore, the remote transmission device 1-9 is a 4G router.

[0039] Furthermore, the primary network water supply pressure transmitter, the primary network water supply temperature transmitter, the primary network heat meter, the primary network return water pressure transmitter, the primary network return water temperature transmitter, the regulating valve, the secondary network water supply pressure transmitter, the secondary network water supply temperature transmitter, the secondary network heat meter, the secondary network return water pressure transmitter, the secondary network return water temperature transmitter, the circulation pump, the make-up water pump, the make-up water flow meter, and the dedicated signal cable are connected to the digital input terminal, digital output terminal, analog input terminal, and analog output terminal of the edge computing control through the wiring terminal.

[0040] Furthermore, the manufacturer of the edge computing controller is Heilongjiang Smart Energy Technology Co., Ltd., and the model is Smart-AI-01. The edge computing controller supports analog acquisition, analog output, digital acquisition, and digital output modules for MODBUSRTU / TCP data communication. Users can use the mature MODBUS protocol to directly obtain the value of the acquisition module by reading the register through the standard 3-wire RS-232 serial port and the two-wire RS-485 interface. Analog acquisition description of the edge computing controller: The device provides 24-channel analog signal input and supports analog voltage signals and current signals. Analog output description of the edge computing controller: The device provides 4-channel analog signal output, supports voltage signals and current signals, and selects voltage or current output by connecting different terminals. Voltage output range: 0-10V; current output range: 0-20mA. Digital quantity acquisition description of edge computing controller: The acquisition of digital quantity signals is based on the principle of analog input signal acquisition. The constant voltage source (the device provides a Vout output port, about 5V) is connected to the AI ​​channel through a relay switch. By judging whether the AI ​​channel has acquired a constant voltage value, the state of the switch quantity such as the relay is detected. Digital quantity output description of edge computing controller: The output of the signal is based on the principle of using the AO output to provide current to drive the relay coil. If the AO channel outputs full scale, the coil is energized and the contacts are closed; if the AO channel outputs 0V, the coil is de-energized and the contacts are open.

[0041] It should be noted that relational terms such as "first" and "second" are used only to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of further restrictions, the elements defined by the sentence "comprise a ..." do not exclude the existence of other identical elements in the process, method, article or device including the elements.

[0042] Although the present application has been described above with reference to specific embodiments, various modifications may be made thereto and parts thereof may be replaced with equivalents without departing from the scope of the present application. In particular, as long as there is no structural conflict, the various features in the specific embodiments disclosed in the present application may be used in combination with each other in any manner, and the fact that these combinations are not exhaustively described in this specification is only for the sake of omitting space and saving resources. Therefore, the present application is not limited to the specific embodiments disclosed herein, but includes all technical solutions falling within the scope of the claims.

Claims

1. A plate exchange efficiency online detection device, characterized in that: The invention comprises a box (1), wherein a touch screen (1-1) is installed on the box (1), and wherein a first circuit breaker (1-2), a second circuit breaker (1-3), a third circuit breaker (1-4), a 24V power supply (1-5), a positive wiring terminal (1-6), a negative wiring terminal (1-7), an edge computing controller (1-8), a remote transmission device (1-9), a first frequency converter (1-10), a second frequency converter (1-11), a first relay (1-12), and a second relay (1-13) are arranged in the box (1); One end of the first circuit breaker (1-2) is connected to the mains, and the other end of the first circuit breaker (1-2) is connected to a 24V power supply (1-5); the 24V power supply (1-5) is respectively connected to a positive wiring terminal (1-6) and a negative wiring terminal (1-7); the positive wiring terminal (1-6) is respectively connected to an edge computing controller (1-8) and a touch screen (1-1); the negative wiring terminal (1-7) is respectively connected to an edge computing controller (1-8) and a touch screen (1-1); the touch screen (1-1) is respectively connected to a remote transmission device (1-9) and an edge computing controller (1-8); One end of the second circuit breaker (1-3) is connected to the mains, and the other end of the second circuit breaker (1-3) is connected to the first frequency converter (1-10); One end of the third circuit breaker (1-4) is connected to the mains, and the other end of the third circuit breaker (1-4) is connected to the second frequency converter (1-11); The edge computing controller (1-8) is also connected to the first relay (1-12) and the second relay (1-13) respectively.

2. The plate exchange efficiency online detection device according to claim 1 is characterized in that: A primary network water supply pressure transmitter (15), a primary network water supply temperature transmitter (2), and a primary network heat meter (3) are installed on the primary network water supply pipeline of the plate heat exchanger (16); a primary network return water pressure transmitter (4), a primary network return water temperature transmitter (5), and a regulating valve (6) are installed on the primary network water return pipeline of the plate heat exchanger (16); a secondary network water supply pressure transmitter (7), a secondary network water supply temperature transmitter (8), and a secondary network heat meter (9) are installed on the secondary network water supply pipeline of the plate heat exchanger (16); a secondary network return water pressure transmitter (10), a secondary network return water temperature transmitter (11), a circulation pump (12), a water supply pump (13), and a water supply flow meter (14) are installed on the secondary network return water pipeline of the plate heat exchanger (16).

3. The plate exchange efficiency online detection device according to claim 2 is characterized in that: The first frequency converter (1-10) is connected to a circulation pump (12), and the second frequency converter (1-11) is connected to a water replenishment pump (13).

4. The plate exchange efficiency online detection device according to claim 3 is characterized in that: The water replenishment flow meter (14) is connected to the water tank (17).

5. The plate exchange efficiency online detection device according to claim 4 is characterized in that: The edge computing controller (1-8) is respectively connected to a primary network water supply pressure transmitter (15), a primary network water supply temperature transmitter (2), a primary network heat meter (3), a primary network return water pressure transmitter (4), a primary network return water temperature transmitter (5), a regulating valve (6), a secondary network water supply pressure transmitter (7), a secondary network water supply temperature transmitter (8), a secondary network heat meter (9), a secondary network return water pressure transmitter (10), a secondary network return water temperature transmitter (11), a circulation pump (12), a water supply pump (13), and a water supply flow meter (14) through signal cables.

6. The plate exchange efficiency online detection device according to claim 5 is characterized in that: The remote transmission device (1-9) is a 4G router.

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