Device and method for measuring liquid level value of a drain tank

Abstract

The present invention provides a device for measuring the liquid level value of a drain tank. The device may include a receiving module, which is configured to receive a current value from a transmitter; a storage module, which is configured to store a lookup table for indicating a mapping relationship between the current range of the transmitter and the liquid level range of a liquid level meter, in which the lower limit value of the current range is mapped to the upper limit value of the liquid level range, and the upper limit value of the current range is mapped to the lower limit value of the liquid level range; a processing module, which is connected to the receiving module to receive the current value from the receiving module, and is connected to the storage module to receive the lookup table from the storage module, and is configured to determine the drain tank liquid level value corresponding to the current value in the liquid level range based on the current value received from the receiving module and the lookup table received from the storage module. When the transmitter is reversely installed on the outside of the drain tank, it can correctly measure the liquid level height in the drain tank, improve measurement flexibility and improve the efficiency of maintaining the generator set.

Description

Technical Field

[0001] Embodiments of the present invention relate to the industrial field, and in particular, to a device and method for measuring a liquid level value of a drain tank. Background Art

[0002] At present, steam traps are used in various power stations to collect condensed water formed by steam generated in generator sets. In order to monitor the liquid level in the steam trap in real time, a liquid level gauge with the same height as the steam trap can be installed on the outside of the steam trap. The liquid level gauge is connected to a transmitter, and the data related to the liquid level of the steam trap measured by the liquid level gauge is transmitted to the device for measuring the liquid level of the steam trap through the transmitter, so that the liquid level in the steam trap can be monitored in real time.

[0003] As the requirements for routine maintenance of generator sets increase, there is a corresponding desire to further improve the technology used to measure the liquid level in the drain tank. Summary of the invention

[0004] In view of the above problems in the prior art, embodiments of the present invention provide a device and method for measuring a liquid level value of a drain tank.

[0005] On the one hand, an embodiment of the present invention provides an apparatus for measuring a liquid level value of a drain tank, comprising a receiving module, the receiving module being configured to receive a current value from a transmitter; a storage module, the storage module being configured to store a lookup table indicating a mapping relationship between a current range of the transmitter and a liquid level range of a liquid level meter, wherein in the mapping relationship, a lower limit value of the current range is mapped to an upper limit value of the liquid level range, and an upper limit value of the current range is mapped to a lower limit value of the liquid level range; and a processing module, the processing module being connected to the receiving module to receive the current value from the receiving module, and the processing module being connected to the storage module to receive the lookup table from the storage module, and the processing module being configured to determine a drain tank liquid level value corresponding to the current value in the liquid level range based on the current value received from the receiving module and the lookup table received from the storage module.

[0006] Through the device adopted in this embodiment, when the transmitter is installed in reverse on the outside of the drain tank, the liquid level height in the drain tank can be correctly measured, the flexibility of the device for measuring the liquid level value of the drain tank can be improved, and the efficiency of daily maintenance of the generator set can be improved.

[0007] In one embodiment, the storage module (104) is further configured to store one or more liquid level alarm values.

[0008] Through the device adopted in this embodiment, when the transmitter is reversely installed on the outside of the drain tank, an alarm can be issued for the liquid level in the drain tank as needed, and the efficiency of daily maintenance of the generator set can be improved.

[0009] In one embodiment, the device also includes: a first alarm module, the first alarm module is connected to the processing module to receive the drain tank liquid level value from the processing module, and the first alarm module is connected to the storage module to receive the one or more liquid level alarm values ​​from the storage module, and the first alarm module is configured to determine whether to generate a first alarm message based on the drain tank liquid level value received from the processing module and the one or more liquid level alarm values ​​received from the storage module.

[0010] Through the device adopted in this embodiment, when the transmitter is reversely installed on the outside of the drain tank, an alarm can be issued for the liquid level in the drain tank as needed, and the efficiency of daily maintenance of the generator set can be improved.

[0011] In one embodiment, the storage module is further configured to store an upper limit value and a lower limit value of the current range of the transmitter.

[0012] Through the device adopted in this embodiment, when the transmitter is reversely installed on the outside of the drain tank, it can assist in providing an alarm prompt for the liquid level in the drain tank as needed, and can improve the efficiency of daily maintenance of the generator set.

[0013] In one embodiment, the device also includes: a second alarm module, the second alarm module is connected to the receiving module to receive the current value from the receiving module, and the second alarm module is connected to the storage module to receive the upper limit value and the lower limit value of the current range from the storage module, and the second alarm module is configured to determine whether to generate a second alarm information based on the current value received from the receiving module and the upper limit value and the lower limit value of the current range received from the storage module.

[0014] Through the device adopted in this embodiment, when the transmitter is reversely installed on the outside of the drain tank, it can assist in providing an alarm prompt for the liquid level in the drain tank as needed, and can improve the efficiency of daily maintenance of the generator set.

[0015] In one embodiment, the second alarm module is further configured to determine whether to generate the second alarm information based on the current value received from the receiving module, the upper limit value and lower limit value of the current range received from the storage module, and the limit floating ratio.

[0016] Through the device adopted in this embodiment, when the transmitter is reversely installed on the outside of the drain tank, it is possible to flexibly provide an alarm prompt for the liquid level in the drain tank as needed, and improve the efficiency of daily maintenance of the generator set.

[0017] On the other hand, an embodiment of the present invention provides a method for measuring the liquid level value of a drain tank, comprising receiving a current value from a transmitter; determining the drain tank liquid level value corresponding to the current value in the liquid level range based on the current value and a lookup table indicating a mapping relationship between the current range of the transmitter and the liquid level range of a level meter, wherein in the mapping relationship, the lower limit value of the current range is mapped to the upper limit value of the liquid level range, and the upper limit value of the current range is mapped to the lower limit value of the liquid level range.

[0018] Through the method adopted in this embodiment, when the transmitter is installed in reverse on the outside of the drain tank, the liquid level height in the drain tank can be correctly measured, the flexibility of the device for measuring the liquid level value of the drain tank can be improved, and the efficiency of daily maintenance of the generator set can be improved.

[0019] In one embodiment, the method further comprises: determining whether to generate first alarm information based on the drain tank liquid level value and one or more liquid level alarm values.

[0020] Through the method adopted in this embodiment, when the transmitter is reversely installed on the outside of the drain tank, an alarm can be issued for the liquid level in the drain tank as needed, and the efficiency of daily maintenance of the generator set can be improved.

[0021] In one embodiment, the method further includes: determining whether to generate second alarm information based on the current value and an upper limit value and a lower limit value of the current range.

[0022] Through the method adopted in this embodiment, when the transmitter is reversely installed on the outside of the drain tank, it can assist in providing an alarm prompt for the liquid level in the drain tank as needed, and can improve the efficiency of daily maintenance of the generator set.

[0023] In one embodiment, the method further includes: determining whether to generate the second alarm information based on the current value, the upper limit value and the lower limit value of the current range, and the limit floating ratio.

[0024] Through the method adopted in this embodiment, when the transmitter is reversely installed on the outside of the drain tank, it is possible to flexibly provide an alarm prompt for the liquid level in the drain tank as needed, and the efficiency of daily maintenance of the generator set can be improved.

[0025] On the other hand, an embodiment of the present invention provides a computing device, comprising: at least one processor; a memory in communication with the at least one processor, on which executable code is stored, and when the executable code is executed by the at least one processor, the at least one processor implements the above method.

[0026] On the other hand, an embodiment of the present invention provides a machine-readable storage medium storing executable codes, which, when executed, enable a machine to perform the above method. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] The above and other objects, features and advantages of the embodiments of the present invention will become more apparent through a more detailed description of the embodiments of the present invention in conjunction with the accompanying drawings, wherein like reference numerals generally represent like elements in the embodiments of the present invention.

[0028] Figure 1 is a schematic block diagram of a device for measuring a liquid level value of a drain tank according to an embodiment.

[0029] Figure 2 is a schematic block diagram of a device for measuring a liquid level value of a drain tank according to another embodiment.

[0030] Figure 3 is a schematic block diagram of a device for measuring a liquid level value of a drain tank according to another embodiment.

[0031] Figure 4 is a flow chart of a method for measuring a drain tank level value according to one embodiment.

[0032] Figure 5 is a flow chart of a method for measuring a liquid level value of a drain tank according to another embodiment.

[0033] Figure 6 is a flow chart of a method for measuring a liquid level value of a drain tank according to another embodiment.

[0034] Figure 7 is a flow chart of a method for measuring a liquid level value of a drain tank according to another embodiment.

[0035] Figure 8 is a hardware structure diagram of a computing device for measuring liquid level values ​​according to one embodiment.

[0036] List of reference numerals:

[0037] 100: Installation

[0038] 102: receiving module 104: storage module

[0039] 106: Processing module

[0040] 200: Device 208: First alarm module

[0041] 300: Device 310: Second alarm module

[0042] 400: Methods

[0043] 410: Receive current value from transmitter

[0044] 420: Determine a drain tank level value corresponding to the current value in the level range based on the current value and a lookup table indicating a mapping relationship between the current range of the transmitter and the level range of the level meter, wherein in the mapping relationship, the lower limit value of the current range is mapped to the upper limit value of the level range, and the upper limit value of the current range is mapped to the lower limit value of the level range

[0045] 500: Methods

[0046] 530: Determine whether to generate a first alarm message based on the drain tank liquid level value and one or more liquid level alarm values

[0047] 600: Methods

[0048] 640: Determine whether to generate a second alarm message based on the current value and the upper limit and lower limit of the current range

[0049] 700: Methods

[0050] 740: Determine whether to generate the second alarm information based on the current value, the upper limit value and the lower limit value of the current range, and the limit floating ratio

[0051] 800: Computing equipment

[0052] 802: processor 804: memory

[0053] 806: Communication interface 808: Bus DETAILED DESCRIPTION

[0054] The subject matter described in the present invention will now be discussed with reference to various embodiments. It should be understood that the discussion of these embodiments is only to enable those skilled in the art to better understand and implement the subject matter described in the present invention, and is not a limitation of the scope of protection, applicability or examples set forth in the claims. The functions and arrangements of the elements discussed may be changed without departing from the scope of protection of the claims. Various embodiments may omit, replace or add various processes or components as needed.

[0055] As used in the present invention, the term "including" and its variations are open terms, meaning "including but not limited to". The term "based on" means "based at least in part on". The terms "one embodiment" and "an embodiment" mean "at least one embodiment". The term "another embodiment" means "at least one other embodiment". The terms "first", "second", etc. may refer to different or the same objects. Other definitions may be included below, whether explicit or implicit, and the definition of a term is consistent throughout the specification unless the context clearly indicates otherwise.

[0056] At present, the installation position of the steam trap of the generator set may cross the floor, and the transmitter is installed in the positive direction on the outside of the steam trap, that is, the output end of the transmitter is at the lower end of the steam trap. For example, the steam trap is installed across the floor, and the output end of the transmitter installed on the outside of the steam trap is located between the upper and lower floors. When the transmitter needs to be debugged and the instrument tested on a daily basis, if the staff stands on the lower floor to operate, it is necessary to prepare a herringbone ladder and a safety rope to operate; if the staff stands on the upper floor to operate, it is necessary to bend down to operate. However, it is not convenient to measure and disassemble the transmitter by these two methods, which will affect the efficiency of daily maintenance of the generator set.

[0057] If the transmitter is installed in reverse on the outside of the steam trap, that is, the output end of the transmitter is installed at the upper end of the steam trap, the staff will be able to debug and measure the transmitter more conveniently, but the reverse installation of the transmitter will cause the existing device to be unable to correctly measure the liquid level height in the steam trap. In other words, the existing device only supports the measurement of the liquid level height in the steam trap when the transmitter is installed in the forward direction on the outside of the steam trap.

[0058] In view of this, an embodiment of the present invention provides an improved device for measuring the liquid level height in a steam trap. By using the device, when the transmitter is reversely installed on the outside of the steam trap, the liquid level height in the steam trap can also be correctly measured, thereby realizing more flexible measurement of the liquid level height in the steam trap by using the device.

[0059] Each specific embodiment will be described in detail below with reference to the accompanying drawings.

[0060] The device of the present invention can be implemented by a device for implementing a distributed control system (DCS). A liquid level meter and a transmitter connected to the liquid level meter can be installed outside the drain tank. The transmitter can transmit analog data related to the liquid level height of the drain tank measured by the liquid level meter to the device of the present invention in the form of a current value. The device can be connected to the transmitter, receive data from the transmitter, and process the received data.

[0061] In one embodiment, the liquid level meter may be, for example, a magnetic float liquid level meter, also known as a magnetostrictive liquid level meter. In other embodiments, the liquid level meter may also be other contact liquid level meters or non-contact liquid level meters. The present invention is described by taking the working principle of a magnetic float liquid level meter as an example, but the application scenarios to which the present invention can be applied are not limited thereto.

[0062] When using a magnetic float level gauge, since the level gauge is connected to the drain tank as a communicating vessel, the liquid level in the level gauge will change with the change of the liquid level in the drain tank. A magnetic float is provided in the level gauge, and the position of the magnetic float changes with the change of the liquid level in the level gauge. Therefore, the height of the magnetic float is the liquid level in the drain tank.

[0063] When the liquid level meter is connected to the transmitter installed forward on the outside of the steam trap, the data output by the transmitter reflects the liquid level in the liquid level meter. A series of resistors and reed switches used as switches are connected in series in the circuit of the transmitter. The magnetic float in the liquid level meter triggers the closure of the reed switch in the circuit of the transmitter corresponding to the current position of the magnetic float. The closure of the reed switch will cause the corresponding part of the resistance in the circuit of the transmitter to be short-circuited, that is, the corresponding resistance is connected to divide the voltage. When the magnetic float is located at different positions in the liquid level meter, the reed switches at different positions will be closed accordingly, so that the resistance in the circuit of the transmitter is different, and then the current value output by the transmitter can reflect the height of the position of the magnetic float. Since the height of the position of the magnetic float is the liquid level in the steam trap, the current value output by the transmitter can reflect the liquid level in the steam trap.

[0064] However, when the liquid level meter is connected to the transmitter installed in reverse on the outside of the steam trap, the reed switch that originally corresponds to the higher liquid level position and causes the transmitter to output a larger current is now located at a lower position on the outside of the steam trap, while the reed switch that originally corresponds to the lower liquid level position and causes the transmitter to output a smaller current is now located at a higher position on the outside of the steam trap. In this case, when the magnetic float is located at a lower position in the liquid level meter, the corresponding closed reed switch causes the transmitter to output a larger current, causing the device used for measurement to mistakenly believe that the current liquid level in the steam trap is higher; when the magnetic float is located at a higher position in the liquid level meter, the corresponding closed reed switch causes the transmitter to output a smaller current, causing the device used for measurement to mistakenly believe that the current liquid level in the steam trap is lower, resulting in the inability to correctly measure the liquid level in the steam trap.

[0065] Figure 1 is a schematic block diagram of a device for measuring a liquid level value of a drain tank according to an embodiment. For example, Figure 1 The illustrated apparatus 100 may include a receiving module 102 , a storage module 104 , and a processing module 106 .

[0066] like Figure 1 As shown, the receiving module 102 is configured to receive the current value from the transmitter. For example, the transmitter can send the generated current value to the receiving module 102 of the device 100, so that the receiving module 102 can receive the current value from the transmitter.

[0067] The storage module 104 is configured to store a lookup table indicating a mapping relationship between the current range of the transmitter and the level range of the level meter, wherein in the mapping relationship the lower limit value of the current range is mapped to the upper limit value of the level range, and the upper limit value of the current range is mapped to the lower limit value of the level range.

[0068] For example, a lookup table for indicating the mapping relationship between the current range of the transmitter and the level range of the level meter can be shown in Table 1. The current range of the transmitter can be 4-20mA, and the level range of the level meter can be 0-600mm. The lower limit value 4mA of the current range of the transmitter is mapped to the upper limit value 600mm of the level range, and the upper limit value 20mA of the current range is mapped to the lower limit value 0mm of the level range. In this mapping relationship, the larger the current value within the current range, the smaller the corresponding drain tank level value within the level range; the smaller the current value within the current range, the larger the corresponding drain tank level value within the level range.

[0069] The mapping relationship shown in Table 1 is only an example, and the specific current range, liquid level range and data interval size within the range are not limited thereto.

[0070] Current value (mA) 4 8 12 16 20 Drain tank liquid level value (mm) 600 450 300 150 0

[0071] Table 1

[0072] The receiving module 102 and the storage module 104 are connected to the processing module 106, and the processing module 106 receives the current value from the receiving module 102 and the lookup table from the storage module 104. The processing module is configured to determine the trap level value corresponding to the current value in the liquid level range based on the current value received from the receiving module 102 and the lookup table received from the storage module 104. For example, after the receiving module 102 receives the current value from the transmitter, the processing module 106 searches the lookup table stored in the storage module 104 according to the current value to determine the trap level value corresponding to the current value. The trap level value reflects the current liquid level height in the trap.

[0073] Because the device 100 uses the lookup table shown in Table 1 to determine the liquid level value of the steam trap, when the transmitter is reversely installed outside the steam trap, the device 100 can still correctly measure the liquid level height in the steam trap.

[0074] Through the device adopted in this embodiment, when the transmitter is installed in reverse on the outside of the drain tank, the liquid level height in the drain tank can be correctly measured, the flexibility of the device for measuring the liquid level value of the drain tank can be improved, and the efficiency of daily maintenance of the generator set can be improved.

[0075] For ease of understanding, the following description is given in conjunction with specific examples. It should be understood that the following examples are only intended to help those skilled in the art better understand the device of the present invention, and do not limit the scope of the device.

[0076] Figure 2 200 is a schematic block diagram of a device for measuring the liquid level value of a drain tank according to another embodiment. For example, the device 200 includes a receiving module 102, a storage module 104, a processing module 106 and a first alarm module 208. Specifically, Figure 2 The implementation of the receiving module 102, the storage module 104 and the processing module 106 can be found in Figure 1 The implementation of the receiving module 102, the storage module 104 and the processing module 106 are shown.

[0077] In one embodiment, the storage module 104 is further configured to store one or more liquid level alarm values. For example, one or more dedicated liquid level alarm value function blocks may be provided. For example, two liquid level alarm values ​​150 mm and 450 mm may be pre-stored in the storage module 104. It is understood that the liquid level alarm values ​​150 mm and 450 mm in this embodiment are only examples, and the number of specific liquid level alarm values ​​is not limited to two, and the specific liquid level alarm values ​​are not limited to 150 mm and 450 mm.

[0078] like Figure 2 As shown, the processing module 106 and the storage module 104 are connected to the first alarm module 208, and the first alarm module 208 receives the drain tank liquid level value from the processing module 106, and receives one or more liquid level alarm values ​​from the storage module 104. The first alarm module 208 is configured to determine whether to generate a first alarm message based on the drain tank liquid level value received from the processing module 106 and the one or more liquid level alarm values ​​received from the storage module 104. For example, the processing module 106 sends the determined drain tank liquid level value to the first alarm module 208, and the storage module 104 sends the stored one or more liquid level alarm values ​​to the first alarm module 208. The first alarm module 208 can be one or more dedicated liquid level alarm value function modules.

[0079] In one embodiment, assuming that the two liquid level alarm values ​​sent by the storage module 104 to the first alarm module 208 are 150 mm and 450 mm, respectively, the first alarm module 208 compares the drain tank liquid level value received from the processing module 106 with the two liquid level alarm values, and generates the first alarm information in one or more of the following situations: less than 150 mm, equal to 150 mm, greater than 150 mm and less than 450 mm, equal to 450 mm, or greater than 450 mm, as required. Thus, the device 200 can realize the alarm prompt of the current liquid level height in the drain tank, which is convenient for the staff to maintain the generator set.

[0080] Through the device adopted in this embodiment, when the transmitter is reversely installed on the outside of the drain tank, an alarm prompt for the liquid level height in the drain tank can be provided as needed, and the efficiency of daily maintenance of the generator set can be improved.

[0081] Figure 3 FIG. 1 is a schematic block diagram of a device for measuring a liquid level value of a drain tank according to another embodiment. Figure 3 As shown, the device 300 includes a receiving module 102, a storage module 104, a processing module 106, a first alarm module 208 and a second alarm module 310. Specifically, Figure 3 The implementation of the receiving module 102, the storage module 104 and the processing module 106 can be found in Figure 1 or Figure 2 The implementation of the receiving module 102, the storage module 104 and the processing module 106 shown in FIG. Figure 3 The implementation of the first alarm module 208 in Figure 2 The implementation of the first alarm module 208 is shown.

[0082] In one embodiment, the storage module 104 is further configured to store the upper limit value and the lower limit value of the current range of the transmitter. For example, the upper limit value of the current range is 20mA and the lower limit value is 4mA as shown in Table 1. It can be understood that the upper limit value of the current range of 20mA and the lower limit value of 4mA in this embodiment are only examples, and the upper limit value and the lower limit value of the current range of the specific transmitter are not limited thereto.

[0083] like Figure 3 As shown, the receiving module 102 and the storage module 104 are connected to the second alarm module 310, and the second alarm module 310 receives the current value from the receiving module 102, and receives the upper limit value and the lower limit value of the current range from the storage module 104. The second alarm module 310 is configured to determine whether to generate the second alarm information based on the current value received from the receiving module 102 and the upper limit value and the lower limit value of the current range received from the storage module 104.

[0084] For example, the receiving module 102 sends the received current value to the second alarm module 310, and the storage module 104 sends the stored upper limit value and lower limit value of the current range to the second alarm module 310. The second alarm module 310 compares the current value received from the receiving module 102 with the upper limit value and lower limit value of the current range received from the storage module 104, respectively.

[0085] If the second alarm module 310 determines that the current value is less than the lower limit of the current range or greater than the upper limit of the current range, it determines to generate the second alarm information. Thus, the device 300 can determine that the steam trap is currently in an abnormal working state, such as a device failure, a problem with the transmitter circuit, or no water in the steam trap, etc., which plays the role of alarming the working state of the steam trap, thereby facilitating the maintenance of the generator set by the staff.

[0086] Through the device adopted in this embodiment, when the transmitter is reversely installed on the outside of the drain tank, it can assist in providing an alarm prompt for the liquid level in the drain tank as needed, and can improve the efficiency of daily maintenance of the generator set.

[0087] In one embodiment, the second warning information may be a quality signal.

[0088] In one embodiment, the second alarm module 310 is further configured to determine whether to generate the second alarm information based on the current value received from the receiving module 102, the upper limit value and the lower limit value of the current range received from the storage module 104, and the limit floating ratio. For example, the limit floating ratio can be 10% or -10%. It can be understood that 10% or -10% is only an example of the limit floating ratio, and the specific value is not limited thereto.

[0089] In this embodiment, the criterion for determining whether to generate the second alarm information is not limited to whether it is less than the lower limit value of the current range or whether it is greater than the upper limit value of the current range. The floating upper limit value and / or the floating lower limit value can also be calculated based on the preset limit floating ratio. Take the limit floating ratio of 10% or -10% as an example. Assuming that the upper limit value of the current range is 20mA, then the values ​​between 18-22mA can be used as the floating upper limit value. Similarly, assuming that the lower limit value of the current range is 4mA, then the values ​​between 2-6mA can be used as the floating lower limit value. This calculation method is only an example, and the specific calculation method is not limited to this.

[0090] Thus, the second alarm module 310 can select a value within the floating upper limit and floating lower limit according to a preset rule, and compare the current value received by the receiving module 102 with the floating upper limit and floating lower limit respectively to determine whether to generate a second alarm message.

[0091] Through the device adopted in this embodiment, when the transmitter is reversely installed on the outside of the drain tank, it is possible to flexibly provide an alarm prompt for the liquid level in the drain tank as needed, and can improve the efficiency of daily maintenance of the generator set.

[0092] The above-mentioned devices 100-300 can be implemented by hardware, software, or a combination of hardware and software. For example, when the devices 100-300 are implemented by software, they can be formed by the processor of the device in which they are located reading the corresponding executable code in the memory (such as non-volatile memory) into the memory and running it.

[0093] Figure 4 is a flow chart of a method for measuring a drain tank level value according to one embodiment. Figure 4 The method shown can be used as shown in Figure 1 The process is performed by the device 100 described above and will not be described in detail here.

[0094] In step 410, a current value is received from a transmitter. For example, the device 100 may receive a current value from a transmitter.

[0095] In step 420, the drain tank level value corresponding to the current value in the level range is determined based on the current value and a lookup table indicating a mapping relationship between the current range of the transmitter and the level range of the level meter, wherein the lower limit value of the current range is mapped to the upper limit value of the level range in the mapping relationship, and the upper limit value of the current range is mapped to the lower limit value of the level range. For example, the device 100 may determine the drain tank level value corresponding to the current value in the level range based on the current value and a lookup table indicating a mapping relationship between the current range of the transmitter and the level range of the level meter.

[0096] Through the method adopted in this embodiment, when the transmitter is installed in reverse on the outside of the drain tank, the liquid level height in the drain tank can be correctly measured, the flexibility of the device for measuring the liquid level value of the drain tank can be improved, and the efficiency of daily maintenance of the generator set can be improved.

[0097] Figure 5 is a flow chart of a method for measuring a liquid level value of a drain tank according to another embodiment. Figure 5 The method shown can be used as shown in Figure 2 The described device 200 is used to perform the above operation and will not be described in detail here.

[0098] like Figure 5 The implementation of steps 410-420 shown in FIG. Figure 4 The implementation method of steps 410-420 shown in FIG.

[0099] In step 530, it is determined whether to generate the first alarm information based on the drain tank level value and one or more liquid level alarm values. For example, the device 200 can determine whether to generate the first alarm information based on the drain tank level value and one or more liquid level alarm values.

[0100] By the method adopted in this embodiment, when the transmitter is reversely installed on the outside of the drain tank, an alarm can be issued for the liquid level height in the drain tank as needed, and the efficiency of daily maintenance of the generator set can be improved.

[0101] Figure 6 is a flow chart of a method for measuring a liquid level value of a drain tank according to another embodiment. Figure 6 The method shown can be used as shown in Figure 3 The process is performed by the device 300 described above and will not be described in detail here.

[0102] like Figure 6 The implementation of steps 410-420 and step 530 shown in FIG. 4 can be respectively referred to in Figure 4 Steps 410-420 and Figure 5 Implementation method of step 530 in .

[0103] In step 640, whether to generate second alarm information is determined based on the current value and the upper and lower limits of the current range. For example, the apparatus 300 may determine whether to generate second alarm information based on the current value and the upper and lower limits of the current range.

[0104] It is understandable that this embodiment does not limit the sequence between step 640 and step 420 .

[0105] Through the method adopted in this embodiment, when the transmitter is reversely installed on the outside of the drain tank, it can assist in providing an alarm prompt for the liquid level in the drain tank as needed, and can improve the efficiency of daily maintenance of the generator set.

[0106] In another embodiment, step 530 is performed at Figure 6 There may be optional steps in the methods shown.

[0107] Figure 7 is a flow chart of a method for measuring a liquid level value of a drain tank according to another embodiment. Figure 7 The method shown can be used as shown in Figure 3 The process is performed by the device 300 described above and will not be described in detail here.

[0108] like Figure 7 The implementation of steps 410-420 and step 530 shown in FIG. 4 can be respectively referred to in Figure 4 Steps 410-420 and Figure 5 Implementation method of step 530 in .

[0109] In step 740, it is determined whether to generate the second alarm information based on the current value, the upper limit value and the lower limit value of the current range, and the limit floating ratio. For example, the device 300 can determine whether to generate the second alarm information based on the current value, the upper limit value and the lower limit value of the current range, and the limit floating ratio.

[0110] It is understandable that this embodiment does not limit the sequence between step 740 and step 420 .

[0111] Through the method adopted in this embodiment, when the transmitter is reversely installed on the outside of the drain tank, it is possible to flexibly provide an alarm prompt for the liquid level in the drain tank as needed, and the efficiency of daily maintenance of the generator set can be improved.

[0112] In another embodiment, step 530 is performed at Figure 7 There may be optional steps in the methods shown.

[0113] Figure 8 FIG. 1 is a hardware structure diagram of a computing device for measuring liquid level values ​​according to one embodiment. Figure 8 As shown, the computing device 800 may include at least one processor 802, a memory 804, and a communication interface 806, and the at least one processor 802, the memory 804, and the communication interface 806 are connected together via a bus 808. The at least one processor 802 executes at least one executable code (i.e., the above-mentioned elements implemented in the form of software) stored or encoded in the memory 804.

[0114] In one embodiment, when the executable code stored in the memory 804 is executed by at least one processor 702, the computing device implements the above combination Figure 4-Figure 7 Describes the various processes.

[0115] The computing device 800 may be implemented in any suitable form in the art, for example, including but not limited to a desktop computer, a laptop computer, a smart phone, a tablet computer, a consumer electronic device, a wearable smart device, and the like.

[0116] The embodiments of the present specification also provide a machine-readable storage medium. The machine-readable storage medium may store executable code, which, when executed by a machine, enables the machine to implement the above reference Figure 4-Figure 7 The specific process of the method embodiment is described.

[0117] For example, machine-readable storage media may include, but are not limited to, random access memory (RAM), read-only memory (ROM), electrically erasable programmable read-only memory (EEPROM), static random access memory (SRAM), hard disk, flash memory, and the like.

[0118] It should be understood that the various embodiments of the present invention are described in a progressive manner, and the same or similar parts between the various embodiments can be referred to each other, and each embodiment focuses on the differences from other embodiments.

[0119] The device structure described in the above embodiments may be a physical structure or a logical structure, that is, some modules may be implemented by the same physical entity, or some modules may be implemented by multiple physical entities respectively, or may be implemented by certain components in multiple independent devices.

[0120] The term "exemplary" used throughout this disclosure means "serving as an example, instance, or illustration" and does not imply "preferred" or "advantageous" over other embodiments. The detailed description includes specific details for the purpose of providing an understanding of the described techniques. However, these techniques can be implemented without these specific details. In some instances, in order to avoid obscuring the concepts of the described embodiments, well-known structures and devices are shown in block diagram form.

[0121] The optional implementation modes of the embodiments of the present disclosure are described in detail above in conjunction with the accompanying drawings. However, the embodiments of the present disclosure are not limited to the specific details in the above implementation modes. Within the technical concept of the embodiments of the present disclosure, various modifications can be made to the devices of the embodiments of the present disclosure, and these modifications all belong to the protection scope of the embodiments of the present disclosure.

[0122] The above description of the disclosure is provided to enable any person of ordinary skill in the art to implement or use the disclosure. Various modifications to the disclosure will be apparent to those of ordinary skill in the art, and the general principles defined herein may be applied to other variations without departing from the scope of protection of the disclosure. Therefore, the disclosure is not limited to the examples and designs described herein, but is consistent with the broadest range of principles and novel features disclosed herein.

Claims

1. A device for measuring the liquid level value of a steam trap, characterized in that: include: A receiving module, the receiving module being configured to receive a current value from a transmitter reversely mounted on the outside of the steam trap, wherein a series of resistors and a reed switch used as a switch are connected in series in the circuit of the transmitter; a storage module configured to store a lookup table indicating a mapping relationship between a current range of the transmitter and a liquid level range of a magnetic float level gauge, wherein the transmitter is used in conjunction with the magnetic float level gauge, and in the mapping relationship, a lower limit value of the current range is mapped to an upper limit value of the liquid level range, and an upper limit value of the current range is mapped to a lower limit value of the liquid level range; and A processing module, the processing module is connected to the receiving module to receive the current value from the receiving module, and the processing module is connected to the storage module to receive the lookup table from the storage module, and the processing module is configured to determine the drain tank level value corresponding to the current value in the liquid level range based on the current value received from the receiving module and the lookup table received from the storage module.

2. The device for measuring the liquid level value of a drain tank according to claim 1, characterized in that: The storage module is further configured to store one or more liquid level alarm values.

3. The device for measuring the liquid level value of a drain tank according to claim 2, characterized in that: Also includes: A first alarm module, wherein the first alarm module is connected to the processing module to receive the drain tank liquid level value from the processing module, and the first alarm module is connected to the storage module to receive the one or more liquid level alarm values ​​from the storage module, and the first alarm module is configured to determine whether to generate a first alarm message based on the drain tank liquid level value received from the processing module and the one or more liquid level alarm values ​​received from the storage module.

4. The device for measuring the liquid level value of a drain tank according to any one of claims 1 to 3, characterized in that: The storage module is further configured to store an upper limit value and a lower limit value of the current range of the transmitter.

5. The device for measuring the liquid level value of a drain tank according to claim 4, characterized in that: Also includes: A second alarm module, the second alarm module is connected to the receiving module to receive the current value from the receiving module, and the second alarm module is connected to the storage module to receive the upper limit value and the lower limit value of the current range from the storage module, and the second alarm module is configured to determine whether to generate a second alarm message based on the current value received from the receiving module and the upper limit value and the lower limit value of the current range received from the storage module.

6. The device for measuring the liquid level value of a drain tank according to claim 5, characterized in that: The second alarm module is further configured to determine whether to generate the second alarm information based on the current value received from the receiving module, the upper limit value and the lower limit value of the current range received from the storage module, and the limit floating ratio.

7. A method for measuring the liquid level value of a steam trap, characterized in that: include: Receiving a current value from a transmitter mounted inversely on the outside of the steam trap, wherein a series of resistors and a reed switch used as a switch are connected in series in the circuit of the transmitter; and Based on the current value and a lookup table indicating a mapping relationship between the current range of the transmitter and the level range of the magnetic float level gauge, a drain tank level value corresponding to the current value in the level range is determined, wherein the transmitter is used in conjunction with the magnetic float level gauge, and in the mapping relationship, the lower limit value of the current range is mapped to the upper limit value of the level range, and the upper limit value of the current range is mapped to the lower limit value of the level range.

8. The method for measuring the liquid level value of a drain tank according to claim 7, characterized in that: Also includes: Based on the drain tank liquid level value and one or more liquid level alarm values, it is determined whether to generate a first alarm message.

9. The method for measuring the liquid level value of a drain tank according to claim 7 or 8, characterized in that: Also includes: Whether to generate second alarm information is determined based on the current value and the upper limit value and the lower limit value of the current range.

10. The method for measuring the liquid level value of a drain tank according to claim 7 or 8, characterized in that: Also includes: Whether to generate second alarm information is determined based on the current value, the upper limit value and the lower limit value of the current range, and the limit floating ratio.

11. A computing device comprising: at least one processor; A memory in communication with the at least one processor, having executable codes stored thereon, which, when executed by the at least one processor, cause the at least one processor to implement the method according to any one of claims 7 to 10.

12. A machine-readable storage medium storing executable codes, which, when executed, cause a machine to perform the method according to any one of claims 7 to 10.

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