Blockage early warning method and device for plate type heat exchanger and computer program product

Abstract

The invention discloses a blocking early warning method and device of a plate type heat exchanger and a computer program product, and relates to the field of heat supply.The blocking early warning method of the plate type heat exchanger is applied to a monitoring center of the plate type heat exchanger and comprises the steps that the collected primary network return water temperature and secondary network water supply temperature are obtained, the primary network return water temperature represents the temperature when the primary water flows through the primary network return water pipe, and the secondary network water supply temperature represents the temperature when the secondary water flows through the secondary network water supply pipe; the current temperature difference is determined according to the difference value between the primary network return water temperature and the secondary network water supply temperature; and according to the comparison result of the target ratio and the preset ratio, blocking early warning is conducted on the format heat exchanger, and the target ratio represents the ratio of the current temperature difference to the temperature difference threshold value. By the adoption of the technical scheme, the problem that the heat exchange effect of the heat exchanger is affected due to blockage caused by scale accumulation of the plate heat exchanger is solved.

Description

Technical Field

[0001] The present application relates to the field of heating, and in particular to a blockage warning method, device and computer program product for a plate-type heat exchanger. Background Art

[0002] The plate heat exchanger is a core component in the heating system and is commonly found in heat exchange stations. It is used to achieve heat exchange between the first and second networks of the heating system, and its heat exchange capacity directly affects the heating effect. However, the water quality in the heating system is poor, and scale is easily accumulated after long-term use. If scale accumulates on the plate heat exchanger and causes blockage, it will reduce the heat exchange area and affect the heat exchange capacity of the heat exchanger. If the scale accumulates seriously, it will cause the first network to overheat and cause safety hazards, and the temperature of the second network will not meet the standard, causing user complaints. In the prior art, in order to avoid scale accumulation, the heating company will clean the plate heat exchanger regularly, but it will mainly be cleaned at the end of the heating period or after the temperature of the first and second networks is detected to be abnormal, which cannot avoid the impact on the heating work.

[0003] Therefore, in the related art, there is a problem that the plate heat exchanger is blocked due to scale accumulation, thereby affecting the heat exchange effect of the heat exchanger.

[0004] In the related art, there is no effective solution to the problem that the plate heat exchanger is blocked due to scale accumulation, thereby affecting the heat exchange effect of the heat exchanger.

[0005] Therefore, it is necessary to improve the related technology to overcome the above-mentioned defects in the related technology. Summary of the invention

[0006] The embodiments of the present application provide a plate heat exchanger blockage warning method, device and computer program product to at least solve the problem in the related art that the plate heat exchanger is blocked due to scale accumulation, thereby affecting the heat exchange effect of the heat exchanger.

[0007] According to one aspect of an embodiment of the present application, a blockage warning method for a plate heat exchanger is provided, which is applied to a monitoring center of the plate heat exchanger, wherein the plate heat exchanger is respectively connected to a primary network water supply pipe, a primary network return pipe, a secondary network water supply pipe, and a secondary network return pipe, wherein the primary network water supply pipe is connected to the primary network return pipe, and the secondary network water supply pipe is connected to the secondary network return pipe, and the primary water on the heat source side flows through the primary network water supply pipe, the plate heat exchanger, the primary network return pipe, and the secondary water on the user side flows through the secondary network water supply pipe, the plate heat exchanger, the secondary network return pipe, and the secondary network return pipe. The primary water transfers heat to the secondary water through the plate heat exchanger, including: acquiring the collected primary network return water temperature and secondary network supply water temperature, wherein the primary network return water temperature represents the temperature of the primary water when it flows through the primary network return water pipe, and the secondary network supply water temperature represents the temperature of the secondary water when it flows through the secondary network supply water pipe; determining the current temperature difference according to the difference between the primary network return water temperature and the secondary network supply water temperature; and issuing a blockage warning for the plate heat exchanger according to the comparison result of the target ratio and the preset ratio, wherein the target ratio represents the ratio of the current temperature difference to the temperature difference threshold.

[0008] In an exemplary embodiment, before obtaining the collected primary network return water temperature and secondary network water supply temperature, the method further includes: installing a primary network temperature sensor in the primary network return water pipe, and installing a secondary network temperature sensor in the secondary network water supply pipe; collecting the primary network return water temperature through the primary network temperature sensor, and collecting the secondary network supply water temperature through the secondary network temperature sensor.

[0009] In an exemplary embodiment, before issuing a blockage warning for the plate-type heat exchanger based on the comparison result between the target ratio and the preset ratio, the method further includes: obtaining weather data within a preset time period; and determining a temperature difference threshold value based on the weather data within the preset time period and the maximum allowable temperature difference of the plate-type heat exchanger.

[0010] In an exemplary embodiment, before determining the temperature difference threshold value based on weather data within a preset time period and the maximum allowable temperature difference of the plate heat exchanger, the method further includes: determining a linear relationship between the scale thickness of the plate heat exchanger and the heat exchange efficiency of the plate heat exchanger based on experimental data of the plate heat exchanger, wherein the experimental data includes the heat exchange efficiency of the plate heat exchanger under different scale thicknesses; determining a target scale thickness corresponding to a target heat exchange efficiency based on the linear relationship, wherein the target heat exchange efficiency represents the minimum heat exchange efficiency for maintaining normal operation of the plate heat exchanger; when the scale thickness of the plate heat exchanger is the target scale thickness, determining the difference between the primary network return water temperature and the secondary network supply water temperature as the maximum allowable temperature difference.

[0011] In an exemplary embodiment, a temperature difference threshold is determined based on weather data within a preset time period and a maximum allowable temperature difference of the plate-type heat exchanger, including: determining an average temperature within the preset time period based on weather data within the preset time period; determining a threshold coefficient based on the average temperature, wherein the threshold coefficient is positively correlated with the average temperature; and determining the temperature difference threshold based on the product of the maximum allowable temperature difference and the threshold coefficient.

[0012] In an exemplary embodiment, a blockage warning is provided for the plate-type heat exchanger based on a comparison result between the target ratio and the preset ratio, including: when it is determined that the target ratio is greater than a first preset ratio, a first blockage warning message is sent to a target object to remind the target object to clean the plate-type heat exchanger before a preset date; when it is determined that the target ratio is greater than a second preset ratio, a second blockage warning message is sent to the target object to remind the target object to clean the plate-type heat exchanger immediately, wherein the second preset ratio is greater than the first preset ratio.

[0013] According to another aspect of an embodiment of the present application, a blockage warning device for a plate-type heat exchanger is also provided, including: an acquisition module, used to acquire the collected primary network return water temperature and secondary network water supply temperature, wherein the primary network return water temperature represents the temperature of primary water when flowing through the primary network return water pipe, and the secondary network water supply temperature represents the temperature of secondary water when flowing through the secondary network water supply pipe; a determination module, used to determine the current temperature difference according to the difference between the primary network return water temperature and the secondary network water supply temperature; an early warning module, used to issue a blockage early warning for the plate-type heat exchanger according to the comparison result of the target ratio and the preset ratio, wherein the target ratio represents the ratio of the current temperature difference to the temperature difference threshold.

[0014] According to another aspect of the embodiment of the present application, a computer-readable storage medium is provided, in which a computer program is stored, wherein the computer program is configured to execute the blockage warning method for the above-mentioned plate-type heat exchanger when running.

[0015] According to another aspect of an embodiment of the present application, an electronic device is also provided, including a memory, a processor, and a computer program stored in the memory and executable on the processor, wherein the processor executes the blockage warning method of the plate-type heat exchanger through the computer program.

[0016] According to another aspect of the embodiments of the present application, a computer program product is provided, including a computer program, and when the computer program is executed by a processor, the steps of the method described in each embodiment of the present application are implemented.

[0017] Through this application, the current temperature difference can be determined based on the difference between the collected primary network return water temperature and the secondary network supply water temperature, and then the ratio of the current temperature difference to the temperature difference threshold is compared with the preset ratio, and according to the comparison result, the plate heat exchanger is given a blockage warning. This solves the problem in the related art that the plate heat exchanger is blocked due to the accumulation of scale, thereby affecting the heat exchange effect of the heat exchanger, and achieves the effect of monitoring and warning the plate heat exchanger to reduce the risk of blockage of the heat exchanger. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments consistent with the present application and, together with the description, serve to explain the principles of the present application.

[0019] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, for ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative labor.

[0020] Figure 1 It is a hardware structure block diagram of a computer terminal of a blockage warning method for a plate-type heat exchanger according to an embodiment of the present application;

[0021] Figure 2 is a flow chart of a blockage warning method for a plate-type heat exchanger according to an embodiment of the present application;

[0022] Figure 3 is a schematic diagram of a blockage warning method for a plate-type heat exchanger according to an embodiment of the present application;

[0023] Figure 4 It is a structural block diagram of a blockage warning device for a plate-type heat exchanger according to an embodiment of the present application. DETAILED DESCRIPTION

[0024] In order to enable those skilled in the art to better understand the solution of the present application, the technical solution in the embodiments of the present application will be clearly and completely described below in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field without creative work should fall within the scope of protection of the present application.

[0025] It should be noted that the terms "first", "second", etc. in the specification and claims of the present application and the above-mentioned drawings are used to distinguish similar objects, and are not necessarily used to describe a specific order or sequence. It should be understood that the data used in this way can be interchangeable where appropriate, so that the embodiments of the present application described herein can be implemented in an order other than those illustrated or described herein. In addition, the terms "including" and "having" and any of their variations are intended to cover non-exclusive inclusions, for example, a process, method, system, product or device comprising a series of steps or units is not necessarily limited to those steps or units clearly listed, but may include other steps or units that are not clearly listed or inherent to these processes, methods, products or devices.

[0026] The method embodiments provided in the embodiments of the present application can be executed in a computer terminal or a similar computing device. Taking running on a computer terminal as an example, Figure 1 1 is a hardware structure block diagram of a computer terminal of a blockage warning method for a plate-type heat exchanger according to an embodiment of the present application. Figure 1 As shown, the computer terminal may include one or more ( Figure 1 Only one is shown in the figure) a processor 102 (the processor 102 may include but is not limited to a processing device such as a microprocessor (Central Processing Unit, MCU) or a programmable logic device (Field Programmable Gate Array, FPGA)) and a memory 104 for storing data, wherein the above-mentioned computer terminal may also include a transmission device 106 and an input and output device 108 for communication functions. It can be understood by those skilled in the art that Figure 1 The structure shown is only for illustration and does not limit the structure of the above-mentioned computer terminal. Figure 1 More or fewer components as shown, or with Figure 1 Different configurations are shown.

[0027] The memory 104 can be used to store computer programs, for example, software programs and modules of application software, such as the computer program corresponding to the blockage warning method of the plate heat exchanger in the embodiment of the present application. The processor 102 executes various functional applications and data processing by running the computer program stored in the memory 104, that is, to implement the above method. The memory 104 may include a high-speed random access memory, and may also include a non-volatile memory, such as one or more magnetic storage devices, flash memory, or other non-volatile solid-state memory. In some examples, the memory 104 may further include a memory remotely arranged relative to the processor 102, and these remote memories may be connected to the computer terminal via a network. Examples of the above-mentioned network include, but are not limited to, the Internet, an intranet, a local area network, a mobile communication network, and combinations thereof.

[0028] A wireless network provided by a communication provider of a computer terminal. In one example, the transmission device 106 includes a network adapter (Network Interface Controller, referred to as NIC), which can be connected to other network devices through a base station so as to communicate with the Internet. In one example, the transmission device 106 can be a radio frequency (Radio Frequency, referred to as RF) module, which is used to communicate with the Internet wirelessly.

[0029] In this embodiment, a blockage warning method for a plate heat exchanger is provided, which is applied to a monitoring center of the plate heat exchanger. The plate heat exchanger is respectively connected to a primary network water supply pipe, a primary network return pipe, a secondary network water supply pipe, and a secondary network return pipe. The primary network water supply pipe is connected to the primary network return pipe, and the secondary network water supply pipe is connected to the secondary network return pipe. The primary water on the heat source side flows through the primary network water supply pipe, the plate heat exchanger, the primary network return pipe, and the secondary water on the user side flows through the secondary network water supply pipe, the plate heat exchanger, and the secondary network return pipe in sequence. The primary water transfers heat to the secondary water through the plate heat exchanger. Figure 2 is a flow chart of a blockage warning method for a plate-type heat exchanger according to an embodiment of the present application, such as Figure 2 As shown, the process includes the following steps:

[0030] Step S202, obtaining the collected primary network return water temperature and secondary network supply water temperature, wherein the primary network return water temperature represents the temperature of the primary water when it flows through the primary network return water pipe, and the secondary network supply water temperature represents the temperature of the secondary water when it flows through the secondary network supply water pipe;

[0031] Step S204, determining a current temperature difference according to a difference between the primary network return water temperature and the secondary network supply water temperature;

[0032] Step S206, issuing a blockage warning for the plate-type heat exchanger according to a comparison result between the target ratio and the preset ratio, wherein the target ratio represents the ratio of the current temperature difference to the temperature difference threshold.

[0033] Through the above steps, the current temperature difference can be determined according to the difference between the collected primary network return water temperature and the secondary network supply water temperature, and then the ratio of the current temperature difference to the temperature difference threshold is compared with the preset ratio, and according to the comparison result, the plate heat exchanger is given a blockage warning. This solves the problem in the related art that the plate heat exchanger is blocked due to the accumulation of scale, thereby affecting the heat exchange effect of the heat exchanger, and achieves the effect of monitoring and warning the plate heat exchanger to reduce the blockage risk of the heat exchanger.

[0034] In an exemplary embodiment, before executing the above step S202 to obtain the collected primary network return water temperature and secondary network supply water temperature, the method also includes: installing a primary network temperature sensor in the primary network return water pipe, and installing a secondary network temperature sensor in the secondary network supply water pipe; collecting the primary network return water temperature through the primary network temperature sensor, and collecting the secondary network supply water temperature through the secondary network temperature sensor.

[0035] In an optional embodiment, if Figure 3 As shown, the plate heat exchanger 1 is connected to the primary network water supply pipe 2, the primary network return pipe 3, the secondary network return pipe 4, and the secondary network water supply pipe 5. The primary water on the heat source side flows from the primary network water supply pipe 2 to the plate heat exchanger 1, and then flows back to the heat source side from the primary network return pipe 3. The secondary water on the user side flows from the secondary network water supply pipe 4 to the plate heat exchanger 1, and then flows back to the user side from the secondary network return pipe 5 to provide heating for the user. The primary network temperature sensor 6 is inserted into the primary network return pipe 3 to monitor the working medium temperature in the primary network return pipe 3. The secondary network temperature sensor 7 is inserted into the secondary network water supply pipe 5 to monitor the working medium temperature in the secondary network water supply pipe 5. The primary network temperature sensor 6 and the secondary network temperature sensor 7 collect the temperature and upload it to the monitoring center 8.

[0036] In an exemplary embodiment, before issuing a blockage warning for the plate-type heat exchanger based on the comparison result between the target ratio and the preset ratio, the method further includes: obtaining weather data within a preset time period; and determining a temperature difference threshold value based on the weather data within the preset time period and the maximum allowable temperature difference of the plate-type heat exchanger.

[0037] Optional, such as Figure 3 As shown, the weather data collection system 9 uploads the collected weather data to the monitoring center 8, and then the monitoring center 8 determines the temperature difference threshold value according to the weather data and the maximum allowable temperature difference of the plate heat exchanger.

[0038] In an exemplary embodiment, before determining the temperature difference threshold value based on weather data within a preset time period and the maximum allowable temperature difference of the plate heat exchanger, the method further includes: determining a linear relationship between the scale thickness of the plate heat exchanger and the heat exchange efficiency of the plate heat exchanger based on experimental data of the plate heat exchanger, wherein the experimental data includes the heat exchange efficiency of the plate heat exchanger under different scale thicknesses; determining a target scale thickness corresponding to a target heat exchange efficiency based on the linear relationship, wherein the target heat exchange efficiency represents the minimum heat exchange efficiency for maintaining normal operation of the plate heat exchanger; when the scale thickness of the plate heat exchanger is the target scale thickness, determining the difference between the primary network return water temperature and the secondary network supply water temperature as the maximum allowable temperature difference.

[0039] Optionally, in the above embodiment, as time goes by, scale accumulates in the heat exchanger, and the difference ΔT between the primary network return water temperature T1 and the secondary network supply water temperature T2 increases linearly. The maximum allowable temperature difference ΔTmax of the plate heat exchanger can be obtained through experimental data or historical records, that is, at the maximum allowable temperature difference, scale has affected the normal operation of the heating system.

[0040] In an exemplary embodiment, a temperature difference threshold is determined based on weather data within a preset time period and a maximum allowable temperature difference of the plate-type heat exchanger, including: determining an average temperature within the preset time period based on weather data within the preset time period; determining a threshold coefficient based on the average temperature, wherein the threshold coefficient is positively correlated with the average temperature; and determining the temperature difference threshold based on the product of the maximum allowable temperature difference and the threshold coefficient.

[0041] Optionally, in the above embodiment, the temperature of the external environment will affect the heating demand. The lower the temperature, the greater the heating demand, and the faster the scale accumulation speed of the heat exchanger. Since the closer the temperature difference threshold is to the maximum allowable temperature difference, the greater the risk of blockage, the temperature difference threshold needs to be set lower accordingly. For example, in the case of 5℃-10℃, the temperature difference threshold is set to 0.9ΔTmax, and in the case of 5℃-10℃, the temperature difference threshold is set to 0.85ΔTmax.

[0042] In an exemplary embodiment, the specific execution process of the above-mentioned step S206 for issuing a blockage warning for the plate-type heat exchanger according to the comparison result of the target ratio and the preset ratio includes: when it is determined that the target ratio is greater than a first preset ratio, sending a first blockage warning message to the target object to remind the target object to clean the plate-type heat exchanger before a preset date; when it is determined that the target ratio is greater than a second preset ratio, sending a second blockage warning message to the target object to remind the target object to clean the plate-type heat exchanger immediately, wherein the second preset ratio is greater than the first preset ratio.

[0043] Optionally, in the above embodiment, when the current temperature difference is close to the temperature difference threshold, the staff needs to be reminded to clean the plate heat exchanger within a specified date (for example, within a week). If the current temperature difference is greater than the temperature difference threshold, the staff needs to be reminded to clean the plate heat exchanger on the same day.

[0044] Through the above embodiments, the return water temperature of the primary network and the supply water temperature of the secondary network can be monitored, and the influence of weather factors can be considered at the same time, so as to sense the blockage of the plate heat exchanger in advance and remind the staff to clean the plate heat exchanger in time to reduce potential accidents.

[0045] Through the description of the above implementation methods, those skilled in the art can clearly understand that the method according to the above embodiment can be implemented by means of software plus a necessary general hardware platform, and of course by hardware, but in many cases the former is a better implementation method. Based on such an understanding, the technical solution of the present application, or the part that contributes to the prior art, can be embodied in the form of a software product, which is stored in a storage medium (such as ROM / RAM, magnetic disk, optical disk), and includes a number of instructions for a terminal device (which can be a mobile phone, computer, server, or network device, etc.) to execute the methods of each embodiment of the present application.

[0046] In this embodiment, a blockage warning device for a plate-type heat exchanger is also provided, which is used to implement the above-mentioned embodiments and preferred implementations, and will not be repeated for what has been described. As used below, the term "module" can be a combination of software and / or hardware that implements a predetermined function. Although the devices described in the following embodiments are preferably implemented in software, the implementation of hardware, or a combination of software and hardware, is also possible and conceivable.

[0047] Figure 4 : is a structural block diagram of a blockage warning device for a plate-type heat exchanger according to an embodiment of the present application, the device comprising:

[0048] The acquisition module 42 is used to acquire the collected primary network return water temperature and secondary network supply water temperature, wherein the primary network return water temperature represents the temperature of the primary water when it flows through the primary network return water pipe, and the secondary network supply water temperature represents the temperature of the secondary water when it flows through the secondary network supply water pipe;

[0049] A determination module 44, configured to determine a current temperature difference according to a difference between the primary network return water temperature and the secondary network supply water temperature;

[0050] The early warning module 46 is used to issue a blockage early warning to the plate-type heat exchanger according to the comparison result of the target ratio and the preset ratio, wherein the target ratio represents the ratio of the current temperature difference to the temperature difference threshold.

[0051] Through the above device, the current temperature difference can be determined according to the difference between the collected primary network return water temperature and the secondary network supply water temperature, and then the ratio of the current temperature difference to the temperature difference threshold is compared with the preset ratio, and according to the comparison result, the plate heat exchanger is given a blockage warning. This solves the problem in the related art that the plate heat exchanger is blocked due to the accumulation of scale, thereby affecting the heat exchange effect of the heat exchanger, and achieves the effect of monitoring and warning the plate heat exchanger to reduce the blockage risk of the heat exchanger.

[0052] In an exemplary embodiment, the acquisition module 42 is also used to: install a primary network temperature sensor in the primary network return pipe, and install a secondary network temperature sensor in the secondary network supply pipe; collect the primary network return water temperature through the primary network temperature sensor, and collect the secondary network supply water temperature through the secondary network temperature sensor.

[0053] In an exemplary embodiment, the early warning module 46 is further used to: obtain weather data within a preset time period; and determine a temperature difference threshold value according to the weather data within the preset time period and a maximum allowable temperature difference of the plate-type heat exchanger.

[0054] In an exemplary embodiment, the early warning module 46 is also used to: determine the linear relationship between the scale thickness of the plate heat exchanger and the heat exchange efficiency of the plate heat exchanger based on the experimental data of the plate heat exchanger, wherein the experimental data includes the heat exchange efficiency of the plate heat exchanger under different scale thicknesses; determine the target scale thickness corresponding to the target heat exchange efficiency based on the linear relationship, wherein the target heat exchange efficiency represents the minimum heat exchange efficiency for maintaining the normal operation of the plate heat exchanger; when the scale thickness of the plate heat exchanger is the target scale thickness, determine the difference between the primary network return water temperature and the secondary network supply water temperature as the maximum allowable temperature difference.

[0055] In an exemplary embodiment, the early warning module 46 is also used to: determine the average temperature within the preset time period based on the weather data within the preset time period; determine a threshold coefficient based on the average temperature, wherein the threshold coefficient is positively correlated with the average temperature; determine the temperature difference threshold based on the product of the maximum allowable temperature difference and the threshold coefficient.

[0056] In an exemplary embodiment, the early warning module 46 is also used to: when it is determined that the target ratio is greater than a first preset ratio, send a first blockage early warning message to the target object to remind the target object to clean the plate-type heat exchanger before a preset date; when it is determined that the target ratio is greater than a second preset ratio, send a second blockage early warning message to the target object to remind the target object to clean the plate-type heat exchanger immediately, wherein the second preset ratio is greater than the first preset ratio.

[0057] An embodiment of the present application further provides a computer-readable storage medium, in which a computer program is stored, wherein the computer program is configured to execute the steps of any of the above method embodiments when running.

[0058] Optionally, in this embodiment, the storage medium may be configured to store a computer program for performing the following steps:

[0059] S1, obtaining the collected primary network return water temperature and secondary network supply water temperature, wherein the primary network return water temperature represents the temperature of the primary water when it flows through the primary network return water pipe, and the secondary network supply water temperature represents the temperature of the secondary water when it flows through the secondary network supply water pipe;

[0060] S2, determining a current temperature difference according to a difference between the primary network return water temperature and the secondary network supply water temperature;

[0061] S3, issuing a blockage warning to the plate-type heat exchanger according to a comparison result between a target ratio and a preset ratio, wherein the target ratio represents a ratio of the current temperature difference to a temperature difference threshold.

[0062] In an exemplary embodiment, the computer-readable storage medium may include, but is not limited to, various media that can store computer programs, such as a USB flash drive, a read-only memory (ROM), a random access memory (RAM), a mobile hard disk, a magnetic disk or an optical disk.

[0063] For specific examples in this embodiment, reference may be made to the examples described in the above embodiments and exemplary implementation modes, and this embodiment will not be described in detail herein.

[0064] An embodiment of the present application further provides an electronic device, including a memory and a processor, wherein a computer program is stored in the memory, and the processor is configured to run the computer program to execute the steps in any one of the above method embodiments.

[0065] Optionally, in this embodiment, the processor may be configured to perform the following steps through a computer program:

[0066] S1, obtaining the collected primary network return water temperature and secondary network supply water temperature, wherein the primary network return water temperature represents the temperature of the primary water when it flows through the primary network return water pipe, and the secondary network supply water temperature represents the temperature of the secondary water when it flows through the secondary network supply water pipe;

[0067] S2, determining a current temperature difference according to a difference between the primary network return water temperature and the secondary network supply water temperature;

[0068] S3, issuing a blockage warning to the plate-type heat exchanger according to a comparison result between a target ratio and a preset ratio, wherein the target ratio represents a ratio of the current temperature difference to a temperature difference threshold.

[0069] An embodiment of the present application further provides a computer program product, comprising a non-volatile computer-readable storage medium, wherein the non-volatile computer-readable storage medium stores a computer program product, and when the computer program is executed by a processor, the steps of the method described in each embodiment of the present application are implemented.

[0070] Optionally, in this embodiment, the above computer program may be configured to implement the following steps when executed by a processor:

[0071] S1, obtaining the collected primary network return water temperature and secondary network supply water temperature, wherein the primary network return water temperature represents the temperature of the primary water when it flows through the primary network return water pipe, and the secondary network supply water temperature represents the temperature of the secondary water when it flows through the secondary network supply water pipe;

[0072] S2, determining a current temperature difference according to a difference between the primary network return water temperature and the secondary network supply water temperature;

[0073] S3, issuing a blockage warning to the plate-type heat exchanger according to a comparison result between a target ratio and a preset ratio, wherein the target ratio represents a ratio of the current temperature difference to a temperature difference threshold.

[0074] For specific examples in this embodiment, reference may be made to the examples described in the above embodiments and exemplary implementation modes, and this embodiment will not be described in detail herein.

[0075] Obviously, those skilled in the art should understand that the above modules or steps of the present application can be implemented by a general computing device, they can be concentrated on a single computing device, or distributed on a network composed of multiple computing devices, they can be implemented by a program code executable by a computing device, so that they can be stored in a storage device and executed by the computing device, and in some cases, the steps shown or described can be executed in a different order from that herein, or they can be made into individual integrated circuit modules, or multiple modules or steps therein can be made into a single integrated circuit module for implementation. Thus, the present application is not limited to any specific combination of hardware and software.

[0076] The above is only a preferred implementation of the present application. It should be pointed out that for ordinary technicians in this technical field, several improvements and modifications can be made without departing from the principles of the present application. These improvements and modifications should also be regarded as the scope of protection of the present application.

Claims

1. A blockage warning method for a plate-type heat exchanger, characterized in that: A monitoring center applied to a plate heat exchanger, wherein the plate heat exchanger is respectively connected to a primary network water supply pipe, a primary network return pipe, a secondary network water supply pipe, and a secondary network return pipe, wherein the primary network water supply pipe is in communication with the primary network return pipe, and the secondary network water supply pipe is in communication with the secondary network return pipe. The primary water on the heat source side flows sequentially through the primary network water supply pipe, the plate heat exchanger, the primary network return pipe, and the secondary water on the user side flows sequentially through the secondary network water supply pipe, the plate heat exchanger, and the secondary network return pipe, wherein the primary water transfers heat to the secondary water through the plate heat exchanger, including: Acquire the collected primary network return water temperature and secondary network supply water temperature, wherein the primary network return water temperature represents the temperature of the primary water when it flows through the primary network return water pipe, and the secondary network supply water temperature represents the temperature of the secondary water when it flows through the secondary network supply water pipe; Determining a current temperature difference according to a difference between the primary network return water temperature and the secondary network supply water temperature; A blockage warning is issued to the plate-type heat exchanger according to a comparison result between a target ratio and a preset ratio, wherein the target ratio represents a ratio of the current temperature difference to a temperature difference threshold.

2. The method according to claim 1, characterized in that Before obtaining the collected primary network return water temperature and secondary network supply water temperature, the method further includes: Installing a primary network temperature sensor in the primary network return pipe, and installing a secondary network temperature sensor in the secondary network supply pipe; The primary network return water temperature is collected by the primary network temperature sensor, and the secondary network supply water temperature is collected by the secondary network temperature sensor.

3. The method according to claim 1, characterized in that Before issuing a blockage warning to the plate-type heat exchanger according to the comparison result between the target ratio and the preset ratio, the method further includes: Get weather data within a preset time period; The temperature difference threshold is determined according to weather data within a preset time period and the maximum allowable temperature difference of the plate-type heat exchanger.

4. The method according to claim 3, characterized in that Before determining the temperature difference threshold value according to weather data within a preset time period and the maximum allowable temperature difference of the plate-type heat exchanger, the method further includes: The linear relationship between the scale thickness of the plate heat exchanger and the heat exchange efficiency of the plate heat exchanger is determined according to the experimental data of the plate heat exchanger, wherein the experimental data includes the heat exchange efficiency corresponding to the plate heat exchanger under different scale thicknesses. Determine a target scale thickness corresponding to a target heat exchange efficiency according to the linear relationship, wherein the target heat exchange efficiency represents a minimum heat exchange efficiency for maintaining normal operation of the plate-type heat exchanger; When the scale thickness of the plate-type heat exchanger is the target scale thickness, the difference between the primary network return water temperature and the secondary network supply water temperature is determined as the maximum allowable temperature difference.

5. The method according to claim 3, characterized in that: Determining the temperature difference threshold value according to weather data within a preset time period and the maximum allowable temperature difference of the plate heat exchanger includes: Determine the average temperature within the preset time period according to the weather data within the preset time period; Determining a threshold coefficient according to the average temperature, wherein the threshold coefficient is positively correlated with the average temperature; The temperature difference threshold is determined according to the product of the maximum allowable temperature difference and the threshold coefficient.

6. The method according to claim 1, characterized in that According to the comparison result between the target ratio and the preset ratio, a blockage warning is given to the plate-type heat exchanger, including: When it is determined that the target ratio is greater than a first preset ratio, a first blockage warning message is sent to the target object to remind the target object to clean the plate-type heat exchanger before a preset date; when it is determined that the target ratio is greater than a second preset ratio, a second blockage warning message is sent to the target object to remind the target object to clean the plate-type heat exchanger immediately, wherein the second preset ratio is greater than the first preset ratio.

7. A blockage warning device for a plate-type heat exchanger, characterized in that: include: An acquisition module, used to acquire the collected primary network return water temperature and secondary network supply water temperature, wherein the primary network return water temperature represents the temperature of primary water when it flows through the primary network return water pipe, and the secondary network supply water temperature represents the temperature of secondary water when it flows through the secondary network supply water pipe; A determination module, configured to determine a current temperature difference according to a difference between the primary network return water temperature and the secondary network supply water temperature; The early warning module is used to issue a blockage early warning to the plate heat exchanger according to the comparison result of the target ratio and the preset ratio, wherein the target ratio represents the ratio of the current temperature difference to the temperature difference threshold.

8. A computer-readable storage medium, characterized in that: The computer-readable storage medium includes a stored program, wherein the program executes the method according to any one of claims 1 to 6 when executed.

9. An electronic device comprising a memory and a processor, characterized in that: A computer program is stored in the memory, and the processor is configured to execute the method according to any one of claims 1 to 6 through the computer program.

10. A computer program product, comprising a computer program, characterized in that When the computer program is executed by a processor, the steps of the method according to any one of claims 1 to 6 are implemented.

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