A method and device for controlling gas supply of low oxygen conditioning equipment

Abstract

The embodiment of the present invention discloses a gas supply control method and device for low-oxygen air conditioning equipment, wherein the gas supply control method includes: after the low-oxygen air conditioning equipment is started for the first time, obtaining the target current oxygen content value corresponding to the airtight enclosure structure space of the low-oxygen air conditioning equipment; judging whether the target current oxygen content value is greater than the target qualified oxygen content value; if so, obtaining the target nitrogen purity value corresponding to the gas supply device of the low-oxygen air conditioning equipment; and controlling the gas supply operation process of the gas supply device according to the target current oxygen content value, the target nitrogen purity value, the first preset oxygen content value, the second preset oxygen content value and the target qualified oxygen content value. The present invention can effectively improve the working efficiency of low-oxygen air conditioning of low-oxygen air conditioning equipment, and has the beneficial effects of simple control, short oxygen replacement time, high oxygen replacement efficiency and low operating cost.

Description

Technical Field

[0001] The present invention relates to the technical field of low-oxygen air conditioning, and in particular to a gas supply control method and device for low-oxygen air conditioning equipment. Background Art

[0002] Since the storage of cultural relics has high requirements for the storage environment, low-oxygen conditioning technology has become an important means to maintain the safety of cultural heritage. Low-oxygen conditioning technology refers to filling an effective concentration of clean nitrogen into a well-sealed storage space to replace the oxygen in the storage space, causing insects and molds to be in a serious state of hypoxia, destroying the living environment of insects and molds, and suffocating them to death, thereby achieving the purpose of protecting the stored items. Low-oxygen conditioning technology is pollution-free, residue-free, safe and environmentally friendly, but the currently commonly used low-oxygen conditioning equipment has the disadvantages of complex control, long replacement time, low efficiency and high operating costs. Summary of the invention

[0003] Based on this, it is necessary to propose a gas supply control method and device for low-oxygen air conditioning equipment to address the above problems, so as to solve the following problems in the prior art: the currently commonly used low-oxygen air conditioning equipment has the disadvantages of complex control, long oxygen replacement time, low oxygen replacement efficiency and high operating cost.

[0004] The first technical solution of the embodiment of the present invention is:

[0005] A gas supply control method for low-oxygen air conditioning equipment, comprising: after the low-oxygen air conditioning equipment is started for the first time, obtaining a target current oxygen content value corresponding to the airtight enclosure structure space of the low-oxygen air conditioning equipment; judging whether the target current oxygen content value is greater than a target qualified oxygen content value; if so, obtaining a target nitrogen purity value corresponding to the gas supply device of the low-oxygen air conditioning equipment; and controlling the gas supply operation process of the gas supply device according to the target current oxygen content value, the target nitrogen purity value, a first preset oxygen content value, a second preset oxygen content value and the target qualified oxygen content value; wherein the first preset oxygen content value and the second preset oxygen content value are both preset oxygen content empirical values ​​corresponding to the gas supply device, the target qualified oxygen content value is the maximum oxygen content value allowed to be reached by the airtight enclosure structure space, and the first preset oxygen content value is greater than the second preset oxygen content value.

[0006] The second technical solution of the embodiment of the present invention is:

[0007] A gas supply control device for low-oxygen air conditioning equipment, comprising: a first acquisition module, used to acquire a target current oxygen content value corresponding to an airtight enclosure structure space of the low-oxygen air conditioning equipment after the low-oxygen air conditioning equipment is started for the first time; an oxygen judgment module, used to judge whether the target current oxygen content value is greater than a target qualified oxygen content value; a second acquisition module, used to acquire a target nitrogen purity value corresponding to a gas supply device of the low-oxygen air conditioning equipment when the target current oxygen content value is greater than or equal to a target qualified oxygen content value; a gas supply control module, used to control the gas supply operation process of the gas supply device according to the target current oxygen content value, the target nitrogen purity value, a first preset oxygen content value, a second preset oxygen content value and the target qualified oxygen content value; wherein the first preset oxygen content value and the second preset oxygen content value are both preset oxygen content empirical values ​​corresponding to the gas supply device, the target qualified oxygen content value is the oxygen content value that the airtight enclosure structure space needs to reach, and the first preset oxygen content value is greater than the second preset oxygen content value.

[0008] The third technical solution of the embodiment of the present invention is:

[0009] A computer device comprises a memory and a processor, wherein the memory stores a computer program, and when the computer program is executed by the processor, the processor performs the following steps:

[0010] After the low-oxygen air conditioning equipment is started for the first time, the target current oxygen content value corresponding to the airtight enclosure structure space of the low-oxygen air conditioning equipment is obtained; it is determined whether the target current oxygen content value is greater than the target qualified oxygen content value; if so, the target nitrogen purity value corresponding to the gas supply device of the low-oxygen air conditioning equipment is obtained; according to the target current oxygen content value, the target nitrogen purity value, the first preset oxygen content value, the second preset oxygen content value and the target qualified oxygen content value, the gas supply operation process of the gas supply device is controlled; wherein, the first preset oxygen content value and the second preset oxygen content value are both preset oxygen content empirical values ​​corresponding to the gas supply device, the target qualified oxygen content value is the maximum oxygen content value allowed to be reached in the airtight enclosure structure space, and the first preset oxygen content value is greater than the second preset oxygen content value.

[0011] The fourth technical solution of the embodiment of the present invention is:

[0012] A computer-readable storage medium stores a computer program, which, when executed by a processor, causes the processor to perform the following steps:

[0013] After the low-oxygen air conditioning equipment is started for the first time, the target current oxygen content value corresponding to the airtight enclosure structure space of the low-oxygen air conditioning equipment is obtained; it is determined whether the target current oxygen content value is greater than the target qualified oxygen content value; if so, the target nitrogen purity value corresponding to the gas supply device of the low-oxygen air conditioning equipment is obtained; according to the target current oxygen content value, the target nitrogen purity value, the first preset oxygen content value, the second preset oxygen content value and the target qualified oxygen content value, the gas supply operation process of the gas supply device is controlled; wherein, the first preset oxygen content value and the second preset oxygen content value are both preset oxygen content empirical values ​​corresponding to the gas supply device, the target qualified oxygen content value is the maximum oxygen content value allowed to be reached in the airtight enclosure structure space, and the first preset oxygen content value is greater than the second preset oxygen content value.

[0014] The embodiments of the present invention have the following beneficial effects:

[0015] The present invention obtains the target current oxygen content value corresponding to the airtight enclosure structure space of the low-oxygen air conditioning equipment after the low-oxygen air conditioning equipment is started for the first time, and then determines whether the target current oxygen content value is greater than the target qualified oxygen content value. If so, the target nitrogen purity value corresponding to the gas supply device of the low-oxygen air conditioning equipment is obtained, and finally the gas supply operation process of the gas supply device is controlled according to the target current oxygen content value, the target nitrogen purity value, the first preset oxygen content value, the second preset oxygen content value and the target qualified oxygen content value, which can effectively improve the working efficiency of the low-oxygen air conditioning of the low-oxygen air conditioning equipment, and has the beneficial effects of simple control, short oxygen replacement time, high oxygen replacement efficiency and low operating cost. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] In order to more clearly illustrate the embodiments of the present invention 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, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0017] in:

[0018] Figure 1 It is an implementation flow chart of an implementation method of a gas supply control method for low-oxygen gas conditioning equipment in an embodiment;

[0019] Figure 2 A framework diagram of a low-oxygen air conditioning device in accordance with an embodiment of a method for controlling a gas supply of a low-oxygen air conditioning device;

[0020] Figure 3 It is a framework structure diagram of an implementation method of a gas supply control device of a low-oxygen gas conditioning device in an embodiment;

[0021] Figure 4 It is a structural block diagram of an implementation scheme of a computer device in one embodiment. DETAILED DESCRIPTION

[0022] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0023] See also Figure 1 , combined with Figure 1 It can be seen that a gas supply control method for a low-oxygen air conditioning device according to an embodiment of the present invention includes the following steps:

[0024] Step S101: After the low-oxygen air conditioning device is started for the first time (ie, after the low-oxygen air conditioning device is turned on from a shutdown state), a target current oxygen content value corresponding to the airtight enclosure structure space of the low-oxygen air conditioning device is obtained.

[0025] like Figure 2 As shown, the low oxygen gas conditioning equipment of the present invention is composed of an air compressor, a nitrogen generator, a gas supply device, a humidity control device, an airtight enclosure structure space, an oxygen content detection device, a nitrogen purity detection device and a control system. Each gas supply branch of the gas supply device of the low oxygen gas conditioning equipment is composed of a solenoid valve and a throttle valve, wherein Figure 2 The first branch is the first air supply branch (including throttle valve 1 and solenoid valve 1), the second branch is the second air supply branch (including throttle valve 2 and solenoid valve 2), and the third branch is the third air supply branch (including throttle valve 3 and solenoid valve 3).

[0026] Among them, the nitrogen generated by the nitrogen generator in the low-oxygen air conditioning equipment is divided into three air supply branches through the air supply device composed of a solenoid valve and a throttle valve. The first and second air supply branches are connected to the airtight enclosure structure space through a humidity control device, and the third air supply branch is directly connected to the atmosphere (the third air supply branch is not connected to the humidity control device). The opening of the throttle valve is adjusted to provide nitrogen of different purities and flows, and the opening and closing of each air supply branch is controlled by controlling the opening and closing of the solenoid valve.

[0027] Among them, air compressors and nitrogen generators are the main energy-consuming components of low-oxygen air conditioning equipment. Using nitrogen to replace the oxygen in the storage space and improve the replacement efficiency can reduce the operating time of the air compressor and nitrogen generator, thereby achieving efficient operation of the entire low-oxygen air conditioning equipment, reducing energy consumption, and further achieving the purpose of saving operating costs.

[0028] Step S102: Determine whether the target current oxygen content value is greater than the target qualified oxygen content value. Figure 2 The oxygen content detection device in the apparatus is used for detection. If the target current oxygen content value is less than the target qualified oxygen content value, the current state can be maintained.

[0029] Step S103: If the target current oxygen content value is greater than the target qualified oxygen content value, then the target nitrogen purity value corresponding to the gas supply device of the low oxygen conditioning equipment is obtained. The target nitrogen purity value is Figure 2 When the target current oxygen content value is greater than the target qualified oxygen content value, it means that there is too much oxygen in the airtight enclosure structure space and it needs to be replaced with nitrogen.

[0030] Step S104: controlling the gas supply operation process of the gas supply device according to the target current oxygen content value, the target nitrogen purity value, the first preset oxygen content value, the second preset oxygen content value and the target qualified oxygen content value.

[0031] Wherein, the first preset oxygen content value and the second preset oxygen content value are both preset oxygen content empirical values ​​corresponding to the air supply device, the target qualified oxygen content value is the maximum oxygen content value allowed to be reached in the airtight enclosure structure space (that is, when the oxygen content of the airtight enclosure structure space exceeds the target qualified oxygen content value, it means that the oxygen content of the airtight enclosure structure space has exceeded the standard), and the first preset oxygen content value is greater than the second preset oxygen content value. Wherein, the value range of the first preset oxygen content value is 2%~5%, the value range of the second preset oxygen content value is 1%~2%, and the value range of the target qualified oxygen content value is 0.1%~21%.

[0032] In this embodiment, optionally, the gas supply device includes a first gas supply branch, a second gas supply branch and a third gas supply branch which are independent of each other, wherein the first gas supply branch and the second gas supply branch are connected to the airtight enclosure structure space, and the third gas supply branch is connected to the atmosphere, and the gas supply operation process of the gas supply device is controlled according to the target current oxygen content value, the target nitrogen purity value, the first preset oxygen content value, the second preset oxygen content value and the target qualified oxygen content value, including:

[0033] First, determine whether the target current oxygen content value is greater than the first preset oxygen content value.

[0034] Second, if the target current oxygen content value is greater than the first preset oxygen content value, it is further determined whether the target nitrogen purity value is greater than or equal to a first difference value, where the first difference value is the difference obtained by subtracting the first preset oxygen content value from 1, that is, the first difference value = 1 - the first preset oxygen content value.

[0035] Third, if the target nitrogen purity value is greater than or equal to the first difference, the first gas supply branch and the second gas supply branch are opened at the same time, and the third gas supply branch is closed.

[0036] Among them, the nitrogen flow rate corresponding to the first gas supply branch is greater than the nitrogen flow rate corresponding to the second gas supply branch, the nitrogen flow rate corresponding to the second gas supply branch is greater than the nitrogen flow rate corresponding to the third gas supply branch, and the nitrogen purity corresponding to the first gas supply branch is less than the nitrogen purity corresponding to the second gas supply branch, and the nitrogen purity corresponding to the second gas supply branch is less than the nitrogen purity corresponding to the third gas supply branch.

[0037] In this embodiment, optionally, controlling the gas supply operation of the gas supply device according to the target current oxygen content value, the target nitrogen purity value, the first preset oxygen content value, the second preset oxygen content value and the target qualified oxygen content value includes:

[0038] First, determine whether the target current oxygen content value is greater than or equal to the second preset oxygen content value and less than or equal to the first preset oxygen content value.

[0039] Second, if the target current oxygen content value is greater than or equal to the second preset oxygen content value and less than or equal to the first preset oxygen content value, it is further determined whether the target nitrogen purity value is greater than or equal to a second difference, where the second difference is the difference obtained by subtracting the second preset oxygen content value from 1, that is, the second difference = 1 - the second preset oxygen content value.

[0040] Third, if the target nitrogen purity value is greater than or equal to the second difference, the first gas supply branch is opened, and the second gas supply branch and the third gas supply branch are closed.

[0041] In this embodiment, optionally, controlling the gas supply operation of the gas supply device according to the target current oxygen content value, the target nitrogen purity value, the first preset oxygen content value, the second preset oxygen content value and the target qualified oxygen content value includes:

[0042] First, determine whether the target current oxygen content value is greater than the target qualified oxygen content value and less than the second preset oxygen content value.

[0043] Second, if the target current oxygen content value is greater than the target qualified oxygen content value and less than the second preset oxygen content value, it is further determined whether the target nitrogen purity value is greater than or equal to a third difference, and the third difference is the difference obtained by subtracting the target qualified oxygen content value from 1, that is: the third difference = 1 - target qualified oxygen content value.

[0044] Third, if the target nitrogen purity value is greater than or equal to a third difference, the second gas supply branch is opened, and the first gas supply branch and the third gas supply branch are closed.

[0045] In this embodiment, optionally, controlling the gas supply operation of the gas supply device according to the target current oxygen content value, the target nitrogen purity value, the first preset oxygen content value, the second preset oxygen content value and the target qualified oxygen content value includes:

[0046] First, it is determined in real time whether the target current oxygen content value is less than or equal to the target qualified oxygen content value.

[0047] Second, if the target current oxygen content value is less than or equal to the target qualified oxygen content value, the low oxygen air conditioning equipment is controlled to enter the standby state. However, the airtight enclosure structure space cannot be absolutely sealed, and it has a certain ventilation rate. After a period of time, the target current oxygen content value must be greater than the target qualified oxygen content value, and the equipment enters the secondary startup working mode.

[0048] In this embodiment, optionally, the controlling the low-oxygen air conditioning device to enter a standby state comprises:

[0049] First, it is determined in real time whether the target current oxygen content value is greater than the target qualified oxygen content value.

[0050] Second, if the target current oxygen content value is greater than the target qualified oxygen content value, the third air supply branch is opened, and it is further determined whether the target current oxygen content value is greater than the first preset oxygen content value.

[0051] Among them, in order to avoid filling the airtight enclosure structure space with nitrogen of insufficient purity, the solenoid valve 3 is opened first, and then the target current oxygen content value corresponding to the airtight enclosure structure space is detected. The function of the solenoid valve 3 is to discharge unqualified nitrogen. When the low-oxygen air conditioning equipment is started for the first time, the solenoid valve 3 does not participate in the nitrogen regulation of the unit. When the low-oxygen air conditioning equipment enters the working mode (i.e., the secondary startup working mode) again from the standby state, since the airtight enclosure structure space is already in a low-oxygen state, in order to avoid filling the airtight enclosure structure space with nitrogen of insufficient purity, which causes the oxygen content in the airtight enclosure structure space to rise, the solenoid valve 3 is opened first to discharge unqualified nitrogen, and then the oxygen content in the airtight enclosure structure space is detected.

[0052] Third, if the target current oxygen content value is greater than the first preset oxygen content value, it is further determined whether the target nitrogen purity value is greater than or equal to a first difference value, where the first difference value is the difference obtained by subtracting the first preset oxygen content value from 1, that is, the first difference value = 1 - the first preset oxygen content value.

[0053] Fourth, if the target nitrogen purity value is greater than or equal to the first difference, the first gas supply branch and the second gas supply branch are opened at the same time, and the third gas supply branch is closed within a preset time. The preset time can be selected as but not limited to 3-8 seconds, preferably 3 seconds.

[0054] In this embodiment, optionally, the controlling the low-oxygen air conditioning device to enter a standby state comprises:

[0055] First, it is determined in real time whether the target current oxygen content value is greater than the target qualified oxygen content value.

[0056] Second, if the target current oxygen content value is greater than the target qualified oxygen content value, the third air supply branch is opened, and it is further determined whether the target current oxygen content value is greater than or equal to the second preset oxygen content value and less than or equal to the first preset oxygen content value.

[0057] Third, if the target current oxygen content value is greater than the target qualified oxygen content value, it is further determined whether the target nitrogen purity value is greater than or equal to a second difference value, where the second difference value is the difference obtained by subtracting the second preset oxygen content value from 1, that is, the second difference value = 1 - the second preset oxygen content value.

[0058] Fourth, if the target nitrogen purity value is greater than or equal to the second difference, the first gas supply branch is opened and the second gas supply branch is closed, and the third gas supply branch is closed within the preset time. The preset time can be selected from but not limited to 3-8 seconds, preferably 3 seconds.

[0059] In this embodiment, optionally, the controlling the low-oxygen air conditioning device to enter a standby state comprises:

[0060] First, it is determined in real time whether the target current oxygen content value is greater than the target qualified oxygen content value.

[0061] Second, if the target current oxygen content value is greater than the target qualified oxygen content value, the third air supply branch is opened, and it is further determined whether the target current oxygen content value is greater than the target qualified oxygen content value and less than the second preset oxygen content value.

[0062] Third, if the target current oxygen content value is greater than the target qualified oxygen content value and less than the second preset oxygen content value, it is further determined whether the target nitrogen purity value is greater than or equal to a third difference, and the third difference is the difference obtained by subtracting the target qualified oxygen content value from 1, that is: the third difference = 1-target qualified oxygen content value.

[0063] Fourth, if the target nitrogen purity value is greater than or equal to the third difference, the second gas supply branch is opened and the first gas supply branch is closed, and the third gas supply branch is closed within the preset time. The preset time can be selected from but not limited to 3-8 seconds, preferably 3 seconds.

[0064] See also Figure 3 , combined with Figure 3 It can be seen that a gas supply control device 100 of a low-oxygen air conditioning device according to an embodiment of the present invention includes:

[0065] The first acquisition module 10 is used to obtain a target current oxygen content value corresponding to the airtight enclosure structure space of the low-oxygen air conditioning equipment after the low-oxygen air conditioning equipment is started for the first time.

[0066] The oxygen content determination module 20 is used to determine whether the target current oxygen content value is greater than the target qualified oxygen content value.

[0067] The second acquisition module 30 is used to acquire a target nitrogen purity value corresponding to the gas supply device of the low-oxygen air conditioning equipment when the target current oxygen content value is greater than or equal to the target qualified oxygen content value.

[0068] The gas supply control module 40 is used to control the gas supply operation process of the gas supply device according to the target current oxygen content value, the target nitrogen purity value, the first preset oxygen content value, the second preset oxygen content value and the target qualified oxygen content value.

[0069] Among them, the first preset oxygen content value and the second preset oxygen content value are both preset oxygen content empirical values ​​corresponding to the air supply device, the target qualified oxygen content value is the oxygen content value that the airtight enclosure structure space needs to reach, and the first preset oxygen content value is greater than the second preset oxygen content value.

[0070] Figure 4 FIG. 1 shows an internal structure diagram of a computer device in an embodiment. The computer device may be a terminal or a server. Figure 4As shown, the computer device includes a processor, a memory and a network interface connected via a system bus. Among them, the memory includes a non-volatile storage medium and an internal memory. The non-volatile storage medium of the computer device stores an operating system and may also store a computer program. When the computer program is executed by the processor, the processor may implement the above-mentioned gas supply control method for the low-oxygen air conditioning equipment. The internal memory may also store a computer program. When the computer program is executed by the processor, the processor may execute the above-mentioned gas supply control method for the low-oxygen air conditioning equipment. Those skilled in the art can understand that Figure 4 The structure shown in the figure is only a block diagram of a part of the structure related to the solution of the present application, and does not constitute a limitation on the computer device to which the solution of the present application is applied. The specific computer device may include more or fewer components than those shown in the figure, or combine certain components, or have a different arrangement of components.

[0071] In another embodiment, a computer device is provided, comprising a memory and a processor, wherein the memory stores a computer program, and when the computer program is executed by the processor, the processor performs the following steps:

[0072] After the low-oxygen air conditioning equipment is started for the first time, the target current oxygen content value corresponding to the airtight enclosure structure space of the low-oxygen air conditioning equipment is obtained; it is determined whether the target current oxygen content value is greater than the target qualified oxygen content value; if so, the target nitrogen purity value corresponding to the gas supply device of the low-oxygen air conditioning equipment is obtained; according to the target current oxygen content value, the target nitrogen purity value, the first preset oxygen content value, the second preset oxygen content value and the target qualified oxygen content value, the gas supply operation process of the gas supply device is controlled; wherein, the first preset oxygen content value and the second preset oxygen content value are both preset oxygen content empirical values ​​corresponding to the gas supply device, the target qualified oxygen content value is the maximum oxygen content value allowed to be reached in the airtight enclosure structure space, and the first preset oxygen content value is greater than the second preset oxygen content value.

[0073] In another embodiment, a computer-readable storage medium is provided, storing a computer program, and when the computer program is executed by a processor, the processor performs the following steps:

[0074] After the low-oxygen air conditioning equipment is started for the first time, the target current oxygen content value corresponding to the airtight enclosure structure space of the low-oxygen air conditioning equipment is obtained; it is determined whether the target current oxygen content value is greater than the target qualified oxygen content value; if so, the target nitrogen purity value corresponding to the gas supply device of the low-oxygen air conditioning equipment is obtained; according to the target current oxygen content value, the target nitrogen purity value, the first preset oxygen content value, the second preset oxygen content value and the target qualified oxygen content value, the gas supply operation process of the gas supply device is controlled; wherein, the first preset oxygen content value and the second preset oxygen content value are both preset oxygen content empirical values ​​corresponding to the gas supply device, the target qualified oxygen content value is the maximum oxygen content value allowed to be reached in the airtight enclosure structure space, and the first preset oxygen content value is greater than the second preset oxygen content value.

[0075] Those skilled in the art can understand that all or part of the processes in the above-mentioned embodiment methods can be completed by instructing the relevant hardware through a computer program, and the program can be stored in a non-volatile computer-readable storage medium. When the program is executed, it can include the processes of the embodiments of the above-mentioned methods. Among them, any reference to memory, storage, database or other media used in the embodiments provided in this application can include non-volatile and / or volatile memory. Non-volatile memory may include read-only memory (ROM), programmable ROM (PROM), electrically programmable ROM (EPROM), electrically erasable programmable ROM (EEPROM) or flash memory. Volatile memory may include random access memory (RAM) or external cache memory. As an illustration and not limitation, RAM is available in many forms, such as static RAM (SRAM), dynamic RAM (DRAM), synchronous DRAM (SDRAM), double data rate SDRAM (DDRSDRAM), enhanced SDRAM (ESDRAM), synchronous link (Synchlink) DRAM (SLDRAM), memory bus (Rambus) direct RAM (RDRAM), direct memory bus dynamic RAM (DRDRAM), and memory bus dynamic RAM (RDRAM).

[0076] The embodiment of the present invention obtains the target current oxygen content value corresponding to the airtight enclosure structure space of the low-oxygen air conditioning equipment after the low-oxygen air conditioning equipment is started for the first time, and then determines whether the target current oxygen content value is greater than the target qualified oxygen content value. If so, the target nitrogen purity value corresponding to the gas supply device of the low-oxygen air conditioning equipment is obtained, and finally the gas supply operation process of the gas supply device is controlled according to the target current oxygen content value, the target nitrogen purity value, the first preset oxygen content value, the second preset oxygen content value and the target qualified oxygen content value, which can effectively improve the working efficiency of the low-oxygen air conditioning of the low-oxygen air conditioning equipment, and has the beneficial effects of simple control, short oxygen replacement time, high oxygen replacement efficiency and low operating cost.

[0077] The technical features of the above embodiments may be combined arbitrarily. To make the description concise, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0078] The above-mentioned embodiments only express several implementation methods of the present application, and the descriptions thereof are relatively specific and detailed, but they cannot be understood as limiting the scope of the present application. It should be pointed out that, for a person of ordinary skill in the art, several variations and improvements can be made without departing from the concept of the present application, and these all belong to the protection scope of the present application. Therefore, the protection scope of the present application shall be subject to the attached claims.

Claims

1. A gas supply control method for low-oxygen air conditioning equipment, characterized in that: include: After the low-oxygen air conditioning device is started for the first time, a target current oxygen content value corresponding to the airtight enclosure structure space of the low-oxygen air conditioning device is obtained; Determining whether the target current oxygen content value is greater than the target qualified oxygen content value; If yes, then obtaining the target nitrogen purity value corresponding to the gas supply device of the low oxygen gas conditioning equipment; Controlling the gas supply operation process of the gas supply device according to the target current oxygen content value, the target nitrogen purity value, the first preset oxygen content value, the second preset oxygen content value and the target qualified oxygen content value; Wherein, the first preset oxygen content value and the second preset oxygen content value are both preset oxygen content empirical values ​​corresponding to the air supply device, the target qualified oxygen content value is the maximum oxygen content value allowed to be reached by the airtight enclosure structure space, and the first preset oxygen content value is greater than the second preset oxygen content value; The gas supply device comprises a first gas supply branch, a second gas supply branch and a third gas supply branch which are independent of each other, wherein the first gas supply branch and the second gas supply branch are connected to the airtight enclosure structure space, and the third gas supply branch is connected to the atmosphere, and the gas supply operation process of the gas supply device is controlled according to the target current oxygen content value, the target nitrogen purity value, the first preset oxygen content value, the second preset oxygen content value and the target qualified oxygen content value, including: Determining whether the target current oxygen content value is greater than the first preset oxygen content value; If so, further determining whether the target nitrogen purity value is greater than or equal to a first difference, where the first difference is a difference obtained by subtracting the first preset oxygen content value from 1; If yes, then open the first gas supply branch and the second gas supply branch at the same time, and close the third gas supply branch; Among them, the nitrogen flow rate corresponding to the first gas supply branch is greater than the nitrogen flow rate corresponding to the second gas supply branch, the nitrogen flow rate corresponding to the second gas supply branch is greater than the nitrogen flow rate corresponding to the third gas supply branch, and the nitrogen purity corresponding to the first gas supply branch is less than the nitrogen purity corresponding to the second gas supply branch, and the nitrogen purity corresponding to the second gas supply branch is less than the nitrogen purity corresponding to the third gas supply branch.

2. The gas supply control method for low-oxygen air conditioning equipment according to claim 1, characterized in that: The controlling of the gas supply operation of the gas supply device according to the target current oxygen content value, the target nitrogen purity value, the first preset oxygen content value, the second preset oxygen content value and the target qualified oxygen content value comprises: Determining whether the target current oxygen content value is greater than or equal to the second preset oxygen content value and less than or equal to the first preset oxygen content value; If so, further determining whether the target nitrogen purity value is greater than or equal to a second difference, where the second difference is a difference obtained by subtracting the second preset oxygen content value from 1; If so, the first gas supply branch is opened, and the second gas supply branch and the third gas supply branch are closed.

3. The gas supply control method for low-oxygen air conditioning equipment according to claim 1, characterized in that: The controlling of the gas supply operation of the gas supply device according to the target current oxygen content value, the target nitrogen purity value, the first preset oxygen content value, the second preset oxygen content value and the target qualified oxygen content value comprises: Determining whether the target current oxygen content value is greater than the target qualified oxygen content value and less than the second preset oxygen content value; If so, further determining whether the target nitrogen purity value is greater than or equal to a third difference value, wherein the third difference value is a difference obtained by subtracting the target qualified oxygen content value from 1; If so, the second gas supply branch is opened, and the first gas supply branch and the third gas supply branch are closed.

4. The gas supply control method for low-oxygen air conditioning equipment according to claim 1, characterized in that: The controlling of the gas supply operation of the gas supply device according to the target current oxygen content value, the target nitrogen purity value, the first preset oxygen content value, the second preset oxygen content value and the target qualified oxygen content value comprises: Determine in real time whether the target current oxygen content value is less than or equal to the target qualified oxygen content value; If yes, the low oxygen air conditioning equipment is controlled to enter a standby state.

5. The gas supply control method for low-oxygen air conditioning equipment according to claim 4, characterized in that: The step of controlling the low oxygen gas conditioning device to enter a standby state comprises: Determine in real time whether the target current oxygen content value is greater than the target qualified oxygen content value; If yes, the third air supply branch is opened, and it is further determined whether the target current oxygen content value is greater than the first preset oxygen content value; If so, further determining whether the target nitrogen purity value is greater than or equal to a first difference, where the first difference is a difference obtained by subtracting the first preset oxygen content value from 1; If so, the first gas supply branch and the second gas supply branch are opened at the same time, and the third gas supply branch is closed within a preset time period.

6. The gas supply control method for low-oxygen air conditioning equipment according to claim 5, characterized in that: The step of controlling the low oxygen gas conditioning device to enter a standby state comprises: Determine in real time whether the target current oxygen content value is greater than the target qualified oxygen content value; If yes, the third air supply branch is opened, and it is further determined whether the target current oxygen content value is greater than or equal to the second preset oxygen content value and less than or equal to the first preset oxygen content value; If so, further determining whether the target nitrogen purity value is greater than or equal to a second difference, where the second difference is a difference obtained by subtracting the second preset oxygen content value from 1; If so, the first gas supply branch is opened and the second gas supply branch is closed, and the third gas supply branch is closed within the preset time period.

7. The gas supply control method for low-oxygen air conditioning equipment according to claim 5, characterized in that: The step of controlling the low oxygen gas conditioning device to enter a standby state comprises: Determine in real time whether the target current oxygen content value is greater than the target qualified oxygen content value; If yes, the third air supply branch is opened, and it is further determined whether the target current oxygen content value is greater than the target qualified oxygen content value and less than the second preset oxygen content value; If so, further determining whether the target nitrogen purity value is greater than or equal to a third difference value, wherein the third difference value is a difference obtained by subtracting the target qualified oxygen content value from 1; If so, the second gas supply branch is opened and the first gas supply branch is closed, and the third gas supply branch is closed within the preset time period.

8. A gas supply control device for low-oxygen air conditioning equipment, characterized in that: include: A first acquisition module is used to obtain a target current oxygen content value corresponding to the airtight enclosure structure space of the low-oxygen air conditioning device after the low-oxygen air conditioning device is started for the first time; An oxygen content judgment module is used to judge whether the target current oxygen content value is greater than the target qualified oxygen content value; A second acquisition module is used to acquire a target nitrogen purity value corresponding to the gas supply device of the low-oxygen air conditioning equipment when the target current oxygen content value is greater than or equal to the target qualified oxygen content value; a gas supply control module, configured to control the gas supply operation process of the gas supply device according to the target current oxygen content value, the target nitrogen purity value, the first preset oxygen content value, the second preset oxygen content value and the target qualified oxygen content value; Wherein, the first preset oxygen content value and the second preset oxygen content value are both preset oxygen content empirical values ​​corresponding to the air supply device, the target qualified oxygen content value is the oxygen content value that the airtight enclosure structure space needs to reach, and the first preset oxygen content value is greater than the second preset oxygen content value; The gas supply device comprises a first gas supply branch, a second gas supply branch and a third gas supply branch which are independent of each other, wherein the first gas supply branch and the second gas supply branch are connected to the airtight enclosure structure space, and the third gas supply branch is connected to the atmosphere, and the gas supply operation process of the gas supply device is controlled according to the target current oxygen content value, the target nitrogen purity value, the first preset oxygen content value, the second preset oxygen content value and the target qualified oxygen content value, including: Determining whether the target current oxygen content value is greater than the first preset oxygen content value; If so, further determining whether the target nitrogen purity value is greater than or equal to a first difference, where the first difference is a difference obtained by subtracting the first preset oxygen content value from 1; If yes, then open the first gas supply branch and the second gas supply branch at the same time, and close the third gas supply branch; Among them, the nitrogen flow rate corresponding to the first gas supply branch is greater than the nitrogen flow rate corresponding to the second gas supply branch, the nitrogen flow rate corresponding to the second gas supply branch is greater than the nitrogen flow rate corresponding to the third gas supply branch, and the nitrogen purity corresponding to the first gas supply branch is less than the nitrogen purity corresponding to the second gas supply branch, and the nitrogen purity corresponding to the second gas supply branch is less than the nitrogen purity corresponding to the third gas supply branch.

9. A computer-readable storage medium, characterized in that: A computer program is stored, and when the computer program is executed by a processor, the processor executes the gas supply control method for low-oxygen air conditioning equipment according to any one of claims 1 to 7.

10. A computer device, characterized in that: It comprises a memory and a processor, the memory stores a computer program, and when the computer program is executed by the processor, the processor executes the gas supply control method of the low-oxygen air conditioning equipment according to any one of claims 1 to 7.

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